diff options
Diffstat (limited to 'examples/opengl')
90 files changed, 8072 insertions, 0 deletions
diff --git a/examples/opengl/2dpainting/2dpainting.pro b/examples/opengl/2dpainting/2dpainting.pro new file mode 100644 index 0000000000..120d6e4986 --- /dev/null +++ b/examples/opengl/2dpainting/2dpainting.pro @@ -0,0 +1,19 @@ +QT += opengl + +HEADERS = glwidget.h \ + helper.h \ + widget.h \ + window.h +SOURCES = glwidget.cpp \ + helper.cpp \ + main.cpp \ + widget.cpp \ + window.cpp + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/2dpainting +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS 2dpainting.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/2dpainting +INSTALLS += target sources + +symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) diff --git a/examples/opengl/2dpainting/glwidget.cpp b/examples/opengl/2dpainting/glwidget.cpp new file mode 100644 index 0000000000..8b28a6e6a3 --- /dev/null +++ b/examples/opengl/2dpainting/glwidget.cpp @@ -0,0 +1,72 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> +#include "glwidget.h" +#include "helper.h" + +//! [0] +GLWidget::GLWidget(Helper *helper, QWidget *parent) + : QGLWidget(QGLFormat(QGL::SampleBuffers), parent), helper(helper) +{ + elapsed = 0; + setFixedSize(200, 200); + setAutoFillBackground(false); +} +//! [0] + +//! [1] +void GLWidget::animate() +{ + elapsed = (elapsed + qobject_cast<QTimer*>(sender())->interval()) % 1000; + repaint(); +} +//! [1] + +//! [2] +void GLWidget::paintEvent(QPaintEvent *event) +{ + QPainter painter; + painter.begin(this); + painter.setRenderHint(QPainter::Antialiasing); + helper->paint(&painter, event, elapsed); + painter.end(); +} +//! [2] diff --git a/examples/opengl/2dpainting/glwidget.h b/examples/opengl/2dpainting/glwidget.h new file mode 100644 index 0000000000..c012960f31 --- /dev/null +++ b/examples/opengl/2dpainting/glwidget.h @@ -0,0 +1,72 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef GLWIDGET_H +#define GLWIDGET_H + +#include <QGLWidget> + +//! [0] +class Helper; +QT_BEGIN_NAMESPACE +class QPaintEvent; +class QWidget; +QT_END_NAMESPACE + +class GLWidget : public QGLWidget +{ + Q_OBJECT + +public: + GLWidget(Helper *helper, QWidget *parent); + +public slots: + void animate(); + +protected: + void paintEvent(QPaintEvent *event); + +private: + Helper *helper; + int elapsed; +}; +//! [0] + +#endif diff --git a/examples/opengl/2dpainting/helper.cpp b/examples/opengl/2dpainting/helper.cpp new file mode 100644 index 0000000000..662a4264a7 --- /dev/null +++ b/examples/opengl/2dpainting/helper.cpp @@ -0,0 +1,90 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> +#include "helper.h" + +//! [0] +Helper::Helper() +{ + QLinearGradient gradient(QPointF(50, -20), QPointF(80, 20)); + gradient.setColorAt(0.0, Qt::white); + gradient.setColorAt(1.0, QColor(0xa6, 0xce, 0x39)); + + background = QBrush(QColor(64, 32, 64)); + circleBrush = QBrush(gradient); + circlePen = QPen(Qt::black); + circlePen.setWidth(1); + textPen = QPen(Qt::white); + textFont.setPixelSize(50); +} +//! [0] + +//! [1] +void Helper::paint(QPainter *painter, QPaintEvent *event, int elapsed) +{ + painter->fillRect(event->rect(), background); + painter->translate(100, 100); +//! [1] + +//! [2] + painter->save(); + painter->setBrush(circleBrush); + painter->setPen(circlePen); + painter->rotate(elapsed * 0.030); + + qreal r = elapsed/1000.0; + int n = 30; + for (int i = 0; i < n; ++i) { + painter->rotate(30); + qreal radius = 0 + 120.0*((i+r)/n); + qreal circleRadius = 1 + ((i+r)/n)*20; + painter->drawEllipse(QRectF(radius, -circleRadius, + circleRadius*2, circleRadius*2)); + } + painter->restore(); +//! [2] + +//! [3] + painter->setPen(textPen); + painter->setFont(textFont); + painter->drawText(QRect(-50, -50, 100, 100), Qt::AlignCenter, "Qt"); +} +//! [3] diff --git a/examples/opengl/2dpainting/helper.h b/examples/opengl/2dpainting/helper.h new file mode 100644 index 0000000000..380399fa50 --- /dev/null +++ b/examples/opengl/2dpainting/helper.h @@ -0,0 +1,71 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef HELPER_H +#define HELPER_H + +#include <QBrush> +#include <QFont> +#include <QPen> + +QT_BEGIN_NAMESPACE +class QPainter; +class QPaintEvent; +QT_END_NAMESPACE + +//! [0] +class Helper +{ +public: + Helper(); + +public: + void paint(QPainter *painter, QPaintEvent *event, int elapsed); + +private: + QBrush background; + QBrush circleBrush; + QFont textFont; + QPen circlePen; + QPen textPen; +}; +//! [0] + +#endif diff --git a/examples/opengl/2dpainting/main.cpp b/examples/opengl/2dpainting/main.cpp new file mode 100644 index 0000000000..aedfd9f8d3 --- /dev/null +++ b/examples/opengl/2dpainting/main.cpp @@ -0,0 +1,50 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> +#include "window.h" + +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + Window window; + window.show(); + return app.exec(); +} diff --git a/examples/opengl/2dpainting/widget.cpp b/examples/opengl/2dpainting/widget.cpp new file mode 100644 index 0000000000..16398147c7 --- /dev/null +++ b/examples/opengl/2dpainting/widget.cpp @@ -0,0 +1,72 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> +#include "widget.h" +#include "helper.h" + + +//! [0] +Widget::Widget(Helper *helper, QWidget *parent) + : QWidget(parent), helper(helper) +{ + elapsed = 0; + setFixedSize(200, 200); +} +//! [0] + +//! [1] +void Widget::animate() +{ + elapsed = (elapsed + qobject_cast<QTimer*>(sender())->interval()) % 1000; + repaint(); +} +//! [1] + +//! [2] +void Widget::paintEvent(QPaintEvent *event) +{ + QPainter painter; + painter.begin(this); + painter.setRenderHint(QPainter::Antialiasing); + helper->paint(&painter, event, elapsed); + painter.end(); +} +//! [2] diff --git a/examples/opengl/2dpainting/widget.h b/examples/opengl/2dpainting/widget.h new file mode 100644 index 0000000000..7a67aaf1bf --- /dev/null +++ b/examples/opengl/2dpainting/widget.h @@ -0,0 +1,71 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef WIDGET_H +#define WIDGET_H + +#include <QWidget> + +//! [0] +class Helper; +QT_BEGIN_NAMESPACE +class QPaintEvent; +QT_END_NAMESPACE + +class Widget : public QWidget +{ + Q_OBJECT + +public: + Widget(Helper *helper, QWidget *parent); + +public slots: + void animate(); + +protected: + void paintEvent(QPaintEvent *event); + +private: + Helper *helper; + int elapsed; +}; +//! [0] + +#endif diff --git a/examples/opengl/2dpainting/window.cpp b/examples/opengl/2dpainting/window.cpp new file mode 100644 index 0000000000..d2c8ef706c --- /dev/null +++ b/examples/opengl/2dpainting/window.cpp @@ -0,0 +1,71 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> +#include "glwidget.h" +#include "widget.h" +#include "window.h" + +//! [0] +Window::Window() + : QWidget() +{ + Widget *native = new Widget(&helper, this); + GLWidget *openGL = new GLWidget(&helper, this); + QLabel *nativeLabel = new QLabel(tr("Native")); + nativeLabel->setAlignment(Qt::AlignHCenter); + QLabel *openGLLabel = new QLabel(tr("OpenGL")); + openGLLabel->setAlignment(Qt::AlignHCenter); + + QGridLayout *layout = new QGridLayout; + layout->addWidget(native, 0, 0); + layout->addWidget(openGL, 0, 1); + layout->addWidget(nativeLabel, 1, 0); + layout->addWidget(openGLLabel, 1, 1); + setLayout(layout); + + QTimer *timer = new QTimer(this); + connect(timer, SIGNAL(timeout()), native, SLOT(animate())); + connect(timer, SIGNAL(timeout()), openGL, SLOT(animate())); + timer->start(50); + + setWindowTitle(tr("2D Painting on Native and OpenGL Widgets")); +} +//! [0] diff --git a/examples/opengl/2dpainting/window.h b/examples/opengl/2dpainting/window.h new file mode 100644 index 0000000000..0f983d20ac --- /dev/null +++ b/examples/opengl/2dpainting/window.h @@ -0,0 +1,66 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef WINDOW_H +#define WINDOW_H + +#include <QWidget> + +#include "helper.h" + +QT_BEGIN_NAMESPACE +class QLabel; +class QWidget; +QT_END_NAMESPACE + +//! [0] +class Window : public QWidget +{ + Q_OBJECT + +public: + Window(); + +private: + Helper helper; +}; +//! [0] + +#endif diff --git a/examples/opengl/README b/examples/opengl/README new file mode 100644 index 0000000000..69bd134246 --- /dev/null +++ b/examples/opengl/README @@ -0,0 +1,41 @@ +Qt provides support for integration with OpenGL implementations on all +platforms, giving developers the opportunity to display hardware accelerated +3D graphics alongside a more conventional user interface. + +These examples demonstrate the basic techniques used to take advantage of +OpenGL in Qt applications. + + +The example launcher provided with Qt can be used to explore each of the +examples in this directory. + +Documentation for these examples can be found via the Tutorial and Examples +link in the main Qt documentation. + + +Finding the Qt Examples and Demos launcher +========================================== + +On Windows: + +The launcher can be accessed via the Windows Start menu. Select the menu +entry entitled "Qt Examples and Demos" entry in the submenu containing +the Qt tools. + +On Mac OS X: + +For the binary distribution, the qtdemo executable is installed in the +/Developer/Applications/Qt directory. For the source distribution, it is +installed alongside the other Qt tools on the path specified when Qt is +configured. + +On Unix/Linux: + +The qtdemo executable is installed alongside the other Qt tools on the path +specified when Qt is configured. + +On all platforms: + +The source code for the launcher can be found in the demos/qtdemo directory +in the Qt package. This example is built at the same time as the Qt libraries, +tools, examples, and demonstrations. diff --git a/examples/opengl/framebufferobject2/cubelogo.png b/examples/opengl/framebufferobject2/cubelogo.png Binary files differnew file mode 100644 index 0000000000..3ae0f9ba3f --- /dev/null +++ b/examples/opengl/framebufferobject2/cubelogo.png diff --git a/examples/opengl/framebufferobject2/framebufferobject2.pro b/examples/opengl/framebufferobject2/framebufferobject2.pro new file mode 100644 index 0000000000..cf59cc3679 --- /dev/null +++ b/examples/opengl/framebufferobject2/framebufferobject2.pro @@ -0,0 +1,13 @@ +HEADERS += glwidget.h +SOURCES += glwidget.cpp main.cpp +RESOURCES += framebufferobject2.qrc + +QT += opengl + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/framebufferobject2 +sources.files = $$SOURCES $$HEADERS $$RESOURCES framebufferobject2.pro *.png +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/framebufferobject2 +INSTALLS += target sources + +symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) diff --git a/examples/opengl/framebufferobject2/framebufferobject2.qrc b/examples/opengl/framebufferobject2/framebufferobject2.qrc new file mode 100644 index 0000000000..9fc1a56a1a --- /dev/null +++ b/examples/opengl/framebufferobject2/framebufferobject2.qrc @@ -0,0 +1,5 @@ +<!DOCTYPE RCC><RCC version="1.0"> +<qresource prefix="/res"> + <file>cubelogo.png</file> +</qresource> +</RCC> diff --git a/examples/opengl/framebufferobject2/glwidget.cpp b/examples/opengl/framebufferobject2/glwidget.cpp new file mode 100644 index 0000000000..7a5adf904d --- /dev/null +++ b/examples/opengl/framebufferobject2/glwidget.cpp @@ -0,0 +1,248 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "glwidget.h" +#include <QtGui/QImage> + +#include <math.h> + +static GLint cubeArray[][3] = { + {0, 0, 0}, {0, 1, 0}, {1, 1, 0}, {1, 0, 0}, + {0, 0, 1}, {1, 0, 1}, {1, 1, 1}, {0, 1, 1}, + {0, 0, 0}, {1, 0, 0}, {1, 0, 1}, {0, 0, 1}, + {0, 1, 0}, {0, 1, 1}, {1, 1, 1}, {1, 1, 0}, + {0, 1, 0}, {0, 0, 0}, {0, 0, 1}, {0, 1, 1}, + {1, 0, 0}, {1, 1, 0}, {1, 1, 1}, {1, 0, 1} +}; + +static GLint cubeTextureArray[][2] = { + {0, 0}, {1, 0}, {1, 1}, {0, 1}, + {0, 0}, {0, 1}, {1, 1}, {1, 0}, + {0, 0}, {1, 0}, {1, 1}, {0, 1}, + {1, 0}, {0, 0}, {0, 1}, {1, 1}, + {0, 0}, {1, 0}, {1, 1}, {0, 1}, + {1, 0}, {0, 0}, {0, 1}, {1, 1} +}; + +static GLint faceArray[][2] = { + {1, -1}, {1, 1}, {-1, 1}, {-1, -1} +}; + +static GLubyte colorArray[][4] = { + {102, 176, 54, 255}, + {81, 141, 41, 255}, + {62, 108, 32, 255}, + {45, 79, 23, 255} +}; + +GLWidget::GLWidget(QWidget *parent) + : QGLWidget(QGLFormat(QGL::SampleBuffers), parent) +{ + // create the framebuffer object - make sure to have a current + // context before creating it + makeCurrent(); + fbo = new QGLFramebufferObject(512, 512); + timerId = startTimer(20); + setWindowTitle(tr("OpenGL framebuffer objects 2")); +} + +GLWidget::~GLWidget() +{ + glDeleteLists(pbufferList, 1); + delete fbo; +} + +void GLWidget::initializeGL() +{ + glMatrixMode(GL_MODELVIEW); + + glEnable(GL_CULL_FACE); + + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + glVertexPointer(3, GL_INT, 0, cubeArray); + glTexCoordPointer(2, GL_INT, 0, cubeTextureArray); + glColorPointer(4, GL_UNSIGNED_BYTE, 0, colorArray); + + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + glEnable(GL_BLEND); + glEnable(GL_TEXTURE_2D); + glEnable(GL_DEPTH_TEST); + + glClearColor(1.0f, 1.0f, 1.0f, 1.0f); + pbufferList = glGenLists(1); + glNewList(pbufferList, GL_COMPILE); + { + glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT); + + // draw cube background + glPushMatrix(); + glLoadIdentity(); + glTranslatef(0.5f, 0.5f, -2.0f); + glDisable(GL_TEXTURE_2D); + glEnableClientState(GL_COLOR_ARRAY); + glVertexPointer(2, GL_INT, 0, faceArray); + glDrawArrays(GL_QUADS, 0, 4); + glVertexPointer(3, GL_INT, 0, cubeArray); + glDisableClientState(GL_COLOR_ARRAY); + glEnable(GL_TEXTURE_2D); + glPopMatrix(); + + // draw cube + glTranslatef(0.5f, 0.5f, 0.5f); + glRotatef(3.0f, 1.0f, 1.0f, 1.0f); + glTranslatef(-0.5f, -0.5f, -0.5f); + glColor4f(0.9f, 0.9f, 0.9f, 1.0f); + glDrawArrays(GL_QUADS, 0, 24); + + glPushMatrix(); // this state is popped back in the paintGL() function + } + glEndList(); + + for (int i = 0; i < 3; ++i) { + yOffs[i] = 0.0f; + xInc[i] = 0.005f; + rot[i] = 0.0f; + } + xOffs[0]= 0.0f; + xOffs[1]= 0.5f; + xOffs[2]= 1.0f; + + cubeTexture = bindTexture(QImage(":res/cubelogo.png")); + + glPushMatrix(); // push to avoid stack underflow in the first paintGL() call +} + +void GLWidget::resizeGL(int w, int h) +{ + glViewport(0, 0, w, h); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + float aspect = w/(float)(h ? h : 1); + glFrustum(-aspect, aspect, -1, 1, 10, 100); + glTranslatef(-0.5f, -0.5f, -0.5f); + glTranslatef(0.0f, 0.0f, -15.0f); +} + +void GLWidget::paintGL() +{ + glPopMatrix(); // pop the matrix pushed in the pbuffer list + + // push the projection matrix and the entire GL state before + // doing any rendering into our framebuffer object + glPushAttrib(GL_ALL_ATTRIB_BITS); + glMatrixMode(GL_PROJECTION); + glPushMatrix(); + + glViewport(0, 0, fbo->size().width(), fbo->size().height()); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1, 1, -1, 1, -99, 99); + glTranslatef(-0.5f, -0.5f, 0.0f); + glMatrixMode(GL_MODELVIEW); + + // render to the framebuffer object + fbo->bind(); + glBindTexture(GL_TEXTURE_2D, cubeTexture); + glCallList(pbufferList); + fbo->release(); + + // pop the projection matrix and GL state back for rendering + // to the actual widget + glPopAttrib(); + glMatrixMode(GL_PROJECTION); + glPopMatrix(); + + glBindTexture(GL_TEXTURE_2D, fbo->texture()); + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + // draw the background + glMatrixMode(GL_MODELVIEW); + glPushMatrix(); + glLoadIdentity(); + glMatrixMode(GL_PROJECTION); + glPushMatrix(); + glLoadIdentity(); + + glVertexPointer(2, GL_INT, 0, faceArray); + glTranslatef(-1.2f, -0.8f, 0.0f); + glScalef(0.2f, 0.2f, 0.2f); + for (int y = 0; y < 5; ++y) { + for (int x = 0; x < 5; ++x) { + glTranslatef(2.0f, 0, 0); + glColor4f(0.8f, 0.8f, 0.8f, 1.0f); + glDrawArrays(GL_QUADS, 0, 4); + } + glTranslatef(-10.0f, 2.0f, 0); + } + glVertexPointer(3, GL_INT, 0, cubeArray); + + glPopMatrix(); + glMatrixMode(GL_MODELVIEW); + + // draw the bouncing cubes + drawCube(0, 0.0f, 1.5f, 2.5f, 1.5f); + drawCube(1, 1.0f, 2.0f, 2.5f, 2.0f); + drawCube(2, 2.0f, 3.5f, 2.5f, 2.5f); + glPopMatrix(); +} + +void GLWidget::drawCube(int i, GLfloat z, GLfloat rotation, GLfloat jmp, GLfloat amp) +{ + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(xOffs[i], yOffs[i], z); + glTranslatef(0.5f, 0.5f, 0.5f); + GLfloat scale = 0.75 + i*(0.25f/2); + glScalef(scale, scale, scale); + glRotatef(rot[i], 1.0f, 1.0f, 1.0f); + glTranslatef(-0.5f, -0.5f, -0.5f); + + glColor4f(1.0f, 1.0f, 1.0f, 0.8f); + glDrawArrays(GL_QUADS, 0, 24); + + if (xOffs[i] > 1.0f || xOffs[i] < -1.0f) { + xInc[i] = -xInc[i]; + xOffs[i] = xOffs[i] > 1.0f ? 1.0f : -1.0f; + } + xOffs[i] += xInc[i]; + yOffs[i] = qAbs(cos((-3.141592f * jmp) * xOffs[i]) * amp) - 1; + rot[i] += rotation; +} diff --git a/examples/opengl/framebufferobject2/glwidget.h b/examples/opengl/framebufferobject2/glwidget.h new file mode 100644 index 0000000000..ccb46a3b83 --- /dev/null +++ b/examples/opengl/framebufferobject2/glwidget.h @@ -0,0 +1,65 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtOpenGL> + +class GLWidget : public QGLWidget +{ +public: + GLWidget(QWidget *parent); + ~GLWidget(); + void initializeGL(); + void resizeGL(int w, int h); + void paintGL(); + void timerEvent(QTimerEvent *) { update(); } + void mousePressEvent(QMouseEvent *) { killTimer(timerId); } + void mouseReleaseEvent(QMouseEvent *) { timerId = startTimer(20); } + + void drawCube(int i, GLfloat z, GLfloat ri, GLfloat jmp, GLfloat amp); + +private: + GLfloat rot[3], xOffs[3], yOffs[3], xInc[3]; + GLuint pbufferList; + GLuint cubeTexture; + int timerId; + + QGLFramebufferObject *fbo; +}; + diff --git a/examples/opengl/framebufferobject2/main.cpp b/examples/opengl/framebufferobject2/main.cpp new file mode 100644 index 0000000000..12e5a62cdd --- /dev/null +++ b/examples/opengl/framebufferobject2/main.cpp @@ -0,0 +1,61 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui/QApplication> +#include <QtGui/QMessageBox> +#include "glwidget.h" + +int main(int argc, char **argv) +{ + Q_INIT_RESOURCE(framebufferobject2); + + QApplication a(argc, argv); + if (!QGLFormat::hasOpenGL() || !QGLFramebufferObject::hasOpenGLFramebufferObjects()) { + QMessageBox::information(0, "OpenGL framebuffer objects 2", + "This system does not support OpenGL/framebuffer objects."); + return -1; + } + + GLWidget widget(0); + widget.resize(640, 480); + widget.show(); + return a.exec(); +} + diff --git a/examples/opengl/grabber/glwidget.cpp b/examples/opengl/grabber/glwidget.cpp new file mode 100644 index 0000000000..72039a7b66 --- /dev/null +++ b/examples/opengl/grabber/glwidget.cpp @@ -0,0 +1,283 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> +#include <QtOpenGL> + +#include <math.h> + +#include "glwidget.h" + +GLWidget::GLWidget(QWidget *parent) + : QGLWidget(parent) +{ + gear1 = 0; + gear2 = 0; + gear3 = 0; + xRot = 0; + yRot = 0; + zRot = 0; + gear1Rot = 0; + + QTimer *timer = new QTimer(this); + connect(timer, SIGNAL(timeout()), this, SLOT(advanceGears())); + timer->start(20); +} + +GLWidget::~GLWidget() +{ + makeCurrent(); + glDeleteLists(gear1, 1); + glDeleteLists(gear2, 1); + glDeleteLists(gear3, 1); +} + +void GLWidget::setXRotation(int angle) +{ + normalizeAngle(&angle); + if (angle != xRot) { + xRot = angle; + emit xRotationChanged(angle); + updateGL(); + } +} + +void GLWidget::setYRotation(int angle) +{ + normalizeAngle(&angle); + if (angle != yRot) { + yRot = angle; + emit yRotationChanged(angle); + updateGL(); + } +} + +void GLWidget::setZRotation(int angle) +{ + normalizeAngle(&angle); + if (angle != zRot) { + zRot = angle; + emit zRotationChanged(angle); + updateGL(); + } +} + +void GLWidget::initializeGL() +{ + static const GLfloat lightPos[4] = { 5.0f, 5.0f, 10.0f, 1.0f }; + static const GLfloat reflectance1[4] = { 0.8f, 0.1f, 0.0f, 1.0f }; + static const GLfloat reflectance2[4] = { 0.0f, 0.8f, 0.2f, 1.0f }; + static const GLfloat reflectance3[4] = { 0.2f, 0.2f, 1.0f, 1.0f }; + + glLightfv(GL_LIGHT0, GL_POSITION, lightPos); + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + glEnable(GL_DEPTH_TEST); + + gear1 = makeGear(reflectance1, 1.0, 4.0, 1.0, 0.7, 20); + gear2 = makeGear(reflectance2, 0.5, 2.0, 2.0, 0.7, 10); + gear3 = makeGear(reflectance3, 1.3, 2.0, 0.5, 0.7, 10); + + glEnable(GL_NORMALIZE); + glClearColor(0.0f, 0.0f, 0.0f, 1.0f); +} + +void GLWidget::paintGL() +{ + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glPushMatrix(); + glRotated(xRot / 16.0, 1.0, 0.0, 0.0); + glRotated(yRot / 16.0, 0.0, 1.0, 0.0); + glRotated(zRot / 16.0, 0.0, 0.0, 1.0); + + drawGear(gear1, -3.0, -2.0, 0.0, gear1Rot / 16.0); + drawGear(gear2, +3.1, -2.0, 0.0, -2.0 * (gear1Rot / 16.0) - 9.0); + + glRotated(+90.0, 1.0, 0.0, 0.0); + drawGear(gear3, -3.1, -1.8, -2.2, +2.0 * (gear1Rot / 16.0) - 2.0); + + glPopMatrix(); +} + +void GLWidget::resizeGL(int width, int height) +{ + int side = qMin(width, height); + glViewport((width - side) / 2, (height - side) / 2, side, side); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glFrustum(-1.0, +1.0, -1.0, 1.0, 5.0, 60.0); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslated(0.0, 0.0, -40.0); +} + +void GLWidget::mousePressEvent(QMouseEvent *event) +{ + lastPos = event->pos(); +} + +void GLWidget::mouseMoveEvent(QMouseEvent *event) +{ + int dx = event->x() - lastPos.x(); + int dy = event->y() - lastPos.y(); + + if (event->buttons() & Qt::LeftButton) { + setXRotation(xRot + 8 * dy); + setYRotation(yRot + 8 * dx); + } else if (event->buttons() & Qt::RightButton) { + setXRotation(xRot + 8 * dy); + setZRotation(zRot + 8 * dx); + } + lastPos = event->pos(); +} + +void GLWidget::advanceGears() +{ + gear1Rot += 2 * 16; + updateGL(); +} + +GLuint GLWidget::makeGear(const GLfloat *reflectance, GLdouble innerRadius, + GLdouble outerRadius, GLdouble thickness, + GLdouble toothSize, GLint toothCount) +{ + const double Pi = 3.14159265358979323846; + + GLuint list = glGenLists(1); + glNewList(list, GL_COMPILE); + glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, reflectance); + + GLdouble r0 = innerRadius; + GLdouble r1 = outerRadius - toothSize / 2.0; + GLdouble r2 = outerRadius + toothSize / 2.0; + GLdouble delta = (2.0 * Pi / toothCount) / 4.0; + GLdouble z = thickness / 2.0; + int i, j; + + glShadeModel(GL_FLAT); + + for (i = 0; i < 2; ++i) { + GLdouble sign = (i == 0) ? +1.0 : -1.0; + + glNormal3d(0.0, 0.0, sign); + + glBegin(GL_QUAD_STRIP); + for (j = 0; j <= toothCount; ++j) { + GLdouble angle = 2.0 * Pi * j / toothCount; + glVertex3d(r0 * cos(angle), r0 * sin(angle), sign * z); + glVertex3d(r1 * cos(angle), r1 * sin(angle), sign * z); + glVertex3d(r0 * cos(angle), r0 * sin(angle), sign * z); + glVertex3d(r1 * cos(angle + 3 * delta), r1 * sin(angle + 3 * delta), + sign * z); + } + glEnd(); + + glBegin(GL_QUADS); + for (j = 0; j < toothCount; ++j) { + GLdouble angle = 2.0 * Pi * j / toothCount; + glVertex3d(r1 * cos(angle), r1 * sin(angle), sign * z); + glVertex3d(r2 * cos(angle + delta), r2 * sin(angle + delta), + sign * z); + glVertex3d(r2 * cos(angle + 2 * delta), r2 * sin(angle + 2 * delta), + sign * z); + glVertex3d(r1 * cos(angle + 3 * delta), r1 * sin(angle + 3 * delta), + sign * z); + } + glEnd(); + } + + glBegin(GL_QUAD_STRIP); + for (i = 0; i < toothCount; ++i) { + for (j = 0; j < 2; ++j) { + GLdouble angle = 2.0 * Pi * (i + (j / 2.0)) / toothCount; + GLdouble s1 = r1; + GLdouble s2 = r2; + if (j == 1) + qSwap(s1, s2); + + glNormal3d(cos(angle), sin(angle), 0.0); + glVertex3d(s1 * cos(angle), s1 * sin(angle), +z); + glVertex3d(s1 * cos(angle), s1 * sin(angle), -z); + + glNormal3d(s2 * sin(angle + delta) - s1 * sin(angle), + s1 * cos(angle) - s2 * cos(angle + delta), 0.0); + glVertex3d(s2 * cos(angle + delta), s2 * sin(angle + delta), +z); + glVertex3d(s2 * cos(angle + delta), s2 * sin(angle + delta), -z); + } + } + glVertex3d(r1, 0.0, +z); + glVertex3d(r1, 0.0, -z); + glEnd(); + + glShadeModel(GL_SMOOTH); + + glBegin(GL_QUAD_STRIP); + for (i = 0; i <= toothCount; ++i) { + GLdouble angle = i * 2.0 * Pi / toothCount; + glNormal3d(-cos(angle), -sin(angle), 0.0); + glVertex3d(r0 * cos(angle), r0 * sin(angle), +z); + glVertex3d(r0 * cos(angle), r0 * sin(angle), -z); + } + glEnd(); + + glEndList(); + + return list; +} + +void GLWidget::drawGear(GLuint gear, GLdouble dx, GLdouble dy, GLdouble dz, + GLdouble angle) +{ + glPushMatrix(); + glTranslated(dx, dy, dz); + glRotated(angle, 0.0, 0.0, 1.0); + glCallList(gear); + glPopMatrix(); +} + +void GLWidget::normalizeAngle(int *angle) +{ + while (*angle < 0) + *angle += 360 * 16; + while (*angle > 360 * 16) + *angle -= 360 * 16; +} diff --git a/examples/opengl/grabber/glwidget.h b/examples/opengl/grabber/glwidget.h new file mode 100644 index 0000000000..f86d5d06d6 --- /dev/null +++ b/examples/opengl/grabber/glwidget.h @@ -0,0 +1,97 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef GLWIDGET_H +#define GLWIDGET_H + +#include <QGLWidget> + +class GLWidget : public QGLWidget +{ + Q_OBJECT + +public: + GLWidget(QWidget *parent = 0); + ~GLWidget(); + + int xRotation() const { return xRot; } + int yRotation() const { return yRot; } + int zRotation() const { return zRot; } + +public slots: + void setXRotation(int angle); + void setYRotation(int angle); + void setZRotation(int angle); + +signals: + void xRotationChanged(int angle); + void yRotationChanged(int angle); + void zRotationChanged(int angle); + +protected: + void initializeGL(); + void paintGL(); + void resizeGL(int width, int height); + void mousePressEvent(QMouseEvent *event); + void mouseMoveEvent(QMouseEvent *event); + +private slots: + void advanceGears(); + +private: + GLuint makeGear(const GLfloat *reflectance, GLdouble innerRadius, + GLdouble outerRadius, GLdouble thickness, + GLdouble toothSize, GLint toothCount); + void drawGear(GLuint gear, GLdouble dx, GLdouble dy, GLdouble dz, + GLdouble angle); + void normalizeAngle(int *angle); + + GLuint gear1; + GLuint gear2; + GLuint gear3; + int xRot; + int yRot; + int zRot; + int gear1Rot; + + QPoint lastPos; +}; + +#endif diff --git a/examples/opengl/grabber/grabber.pro b/examples/opengl/grabber/grabber.pro new file mode 100644 index 0000000000..994026391f --- /dev/null +++ b/examples/opengl/grabber/grabber.pro @@ -0,0 +1,14 @@ +HEADERS = glwidget.h \ + mainwindow.h +SOURCES = glwidget.cpp \ + main.cpp \ + mainwindow.cpp +QT += opengl + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/grabber +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS grabber.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/grabber +INSTALLS += target sources + +symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) diff --git a/examples/opengl/grabber/main.cpp b/examples/opengl/grabber/main.cpp new file mode 100644 index 0000000000..923c1f8514 --- /dev/null +++ b/examples/opengl/grabber/main.cpp @@ -0,0 +1,51 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> + +#include "mainwindow.h" + +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + MainWindow mainWin; + mainWin.show(); + return app.exec(); +} diff --git a/examples/opengl/grabber/mainwindow.cpp b/examples/opengl/grabber/mainwindow.cpp new file mode 100644 index 0000000000..d2f3a98dce --- /dev/null +++ b/examples/opengl/grabber/mainwindow.cpp @@ -0,0 +1,206 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> +#include <QtOpenGL> + +#include "glwidget.h" +#include "mainwindow.h" + +MainWindow::MainWindow() +{ + centralWidget = new QWidget; + setCentralWidget(centralWidget); + + glWidget = new GLWidget; + pixmapLabel = new QLabel; + + glWidgetArea = new QScrollArea; + glWidgetArea->setWidget(glWidget); + glWidgetArea->setWidgetResizable(true); + glWidgetArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); + glWidgetArea->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); + glWidgetArea->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored); + glWidgetArea->setMinimumSize(50, 50); + + pixmapLabelArea = new QScrollArea; + pixmapLabelArea->setWidget(pixmapLabel); + pixmapLabelArea->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored); + pixmapLabelArea->setMinimumSize(50, 50); + + xSlider = createSlider(SIGNAL(xRotationChanged(int)), + SLOT(setXRotation(int))); + ySlider = createSlider(SIGNAL(yRotationChanged(int)), + SLOT(setYRotation(int))); + zSlider = createSlider(SIGNAL(zRotationChanged(int)), + SLOT(setZRotation(int))); + + createActions(); + createMenus(); + + QGridLayout *centralLayout = new QGridLayout; + centralLayout->addWidget(glWidgetArea, 0, 0); + centralLayout->addWidget(pixmapLabelArea, 0, 1); + centralLayout->addWidget(xSlider, 1, 0, 1, 2); + centralLayout->addWidget(ySlider, 2, 0, 1, 2); + centralLayout->addWidget(zSlider, 3, 0, 1, 2); + centralWidget->setLayout(centralLayout); + + xSlider->setValue(15 * 16); + ySlider->setValue(345 * 16); + zSlider->setValue(0 * 16); + + setWindowTitle(tr("Grabber")); + resize(400, 300); +} + +void MainWindow::renderIntoPixmap() +{ + QSize size = getSize(); + if (size.isValid()) { + QPixmap pixmap = glWidget->renderPixmap(size.width(), size.height()); + setPixmap(pixmap); + } +} + +void MainWindow::grabFrameBuffer() +{ + QImage image = glWidget->grabFrameBuffer(); + setPixmap(QPixmap::fromImage(image)); +} + +void MainWindow::clearPixmap() +{ + setPixmap(QPixmap()); +} + +void MainWindow::about() +{ + QMessageBox::about(this, tr("About Grabber"), + tr("The <b>Grabber</b> example demonstrates two approaches for " + "rendering OpenGL into a Qt pixmap.")); +} + +void MainWindow::createActions() +{ + renderIntoPixmapAct = new QAction(tr("&Render into Pixmap..."), this); + renderIntoPixmapAct->setShortcut(tr("Ctrl+R")); + connect(renderIntoPixmapAct, SIGNAL(triggered()), + this, SLOT(renderIntoPixmap())); + + grabFrameBufferAct = new QAction(tr("&Grab Frame Buffer"), this); + grabFrameBufferAct->setShortcut(tr("Ctrl+G")); + connect(grabFrameBufferAct, SIGNAL(triggered()), + this, SLOT(grabFrameBuffer())); + + clearPixmapAct = new QAction(tr("&Clear Pixmap"), this); + clearPixmapAct->setShortcut(tr("Ctrl+L")); + connect(clearPixmapAct, SIGNAL(triggered()), this, SLOT(clearPixmap())); + + exitAct = new QAction(tr("E&xit"), this); + exitAct->setShortcuts(QKeySequence::Quit); + connect(exitAct, SIGNAL(triggered()), this, SLOT(close())); + + aboutAct = new QAction(tr("&About"), this); + connect(aboutAct, SIGNAL(triggered()), this, SLOT(about())); + + aboutQtAct = new QAction(tr("About &Qt"), this); + connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt())); +} + +void MainWindow::createMenus() +{ + fileMenu = menuBar()->addMenu(tr("&File")); + fileMenu->addAction(renderIntoPixmapAct); + fileMenu->addAction(grabFrameBufferAct); + fileMenu->addAction(clearPixmapAct); + fileMenu->addSeparator(); + fileMenu->addAction(exitAct); + + helpMenu = menuBar()->addMenu(tr("&Help")); + helpMenu->addAction(aboutAct); + helpMenu->addAction(aboutQtAct); +} + +QSlider *MainWindow::createSlider(const char *changedSignal, + const char *setterSlot) +{ + QSlider *slider = new QSlider(Qt::Horizontal); + slider->setRange(0, 360 * 16); + slider->setSingleStep(16); + slider->setPageStep(15 * 16); + slider->setTickInterval(15 * 16); + slider->setTickPosition(QSlider::TicksRight); + connect(slider, SIGNAL(valueChanged(int)), glWidget, setterSlot); + connect(glWidget, changedSignal, slider, SLOT(setValue(int))); + return slider; +} + +void MainWindow::setPixmap(const QPixmap &pixmap) +{ + pixmapLabel->setPixmap(pixmap); + QSize size = pixmap.size(); + if (size - QSize(1, 0) == pixmapLabelArea->maximumViewportSize()) + size -= QSize(1, 0); + pixmapLabel->resize(size); +} + +QSize MainWindow::getSize() +{ + bool ok; + QString text = QInputDialog::getText(this, tr("Grabber"), + tr("Enter pixmap size:"), + QLineEdit::Normal, + tr("%1 x %2").arg(glWidget->width()) + .arg(glWidget->height()), + &ok); + if (!ok) + return QSize(); + + QRegExp regExp(tr("([0-9]+) *x *([0-9]+)")); + if (regExp.exactMatch(text)) { + int width = regExp.cap(1).toInt(); + int height = regExp.cap(2).toInt(); + if (width > 0 && width < 2048 && height > 0 && height < 2048) + return QSize(width, height); + } + + return glWidget->size(); +} diff --git a/examples/opengl/grabber/mainwindow.h b/examples/opengl/grabber/mainwindow.h new file mode 100644 index 0000000000..044d2a8dd7 --- /dev/null +++ b/examples/opengl/grabber/mainwindow.h @@ -0,0 +1,94 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef MAINWINDOW_H +#define MAINWINDOW_H + +#include <QMainWindow> + +QT_BEGIN_NAMESPACE +class QAction; +class QLabel; +class QMenu; +class QScrollArea; +class QSlider; +QT_END_NAMESPACE +class GLWidget; + +class MainWindow : public QMainWindow +{ + Q_OBJECT + +public: + MainWindow(); + +private slots: + void renderIntoPixmap(); + void grabFrameBuffer(); + void clearPixmap(); + void about(); + +private: + void createActions(); + void createMenus(); + QSlider *createSlider(const char *changedSignal, const char *setterSlot); + void setPixmap(const QPixmap &pixmap); + QSize getSize(); + + QWidget *centralWidget; + QScrollArea *glWidgetArea; + QScrollArea *pixmapLabelArea; + GLWidget *glWidget; + QLabel *pixmapLabel; + QSlider *xSlider; + QSlider *ySlider; + QSlider *zSlider; + + QMenu *fileMenu; + QMenu *helpMenu; + QAction *grabFrameBufferAct; + QAction *renderIntoPixmapAct; + QAction *clearPixmapAct; + QAction *exitAct; + QAction *aboutAct; + QAction *aboutQtAct; +}; + +#endif diff --git a/examples/opengl/hellogl/glwidget.cpp b/examples/opengl/hellogl/glwidget.cpp new file mode 100644 index 0000000000..59efb12368 --- /dev/null +++ b/examples/opengl/hellogl/glwidget.cpp @@ -0,0 +1,199 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> +#include <QtOpenGL> + +#include <math.h> + +#include "glwidget.h" +#include "qtlogo.h" + +#ifndef GL_MULTISAMPLE +#define GL_MULTISAMPLE 0x809D +#endif + +//! [0] +GLWidget::GLWidget(QWidget *parent) + : QGLWidget(QGLFormat(QGL::SampleBuffers), parent) +{ + logo = 0; + xRot = 0; + yRot = 0; + zRot = 0; + + qtGreen = QColor::fromCmykF(0.40, 0.0, 1.0, 0.0); + qtPurple = QColor::fromCmykF(0.39, 0.39, 0.0, 0.0); +} +//! [0] + +//! [1] +GLWidget::~GLWidget() +{ +} +//! [1] + +//! [2] +QSize GLWidget::minimumSizeHint() const +{ + return QSize(50, 50); +} +//! [2] + +//! [3] +QSize GLWidget::sizeHint() const +//! [3] //! [4] +{ + return QSize(400, 400); +} +//! [4] + +static void qNormalizeAngle(int &angle) +{ + while (angle < 0) + angle += 360 * 16; + while (angle > 360 * 16) + angle -= 360 * 16; +} + +//! [5] +void GLWidget::setXRotation(int angle) +{ + qNormalizeAngle(angle); + if (angle != xRot) { + xRot = angle; + emit xRotationChanged(angle); + updateGL(); + } +} +//! [5] + +void GLWidget::setYRotation(int angle) +{ + qNormalizeAngle(angle); + if (angle != yRot) { + yRot = angle; + emit yRotationChanged(angle); + updateGL(); + } +} + +void GLWidget::setZRotation(int angle) +{ + qNormalizeAngle(angle); + if (angle != zRot) { + zRot = angle; + emit zRotationChanged(angle); + updateGL(); + } +} + +//! [6] +void GLWidget::initializeGL() +{ + qglClearColor(qtPurple.dark()); + + logo = new QtLogo(this, 64); + logo->setColor(qtGreen.dark()); + + glEnable(GL_DEPTH_TEST); + glEnable(GL_CULL_FACE); + glShadeModel(GL_SMOOTH); + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + glEnable(GL_MULTISAMPLE); + static GLfloat lightPosition[4] = { 0.5, 5.0, 7.0, 1.0 }; + glLightfv(GL_LIGHT0, GL_POSITION, lightPosition); +} +//! [6] + +//! [7] +void GLWidget::paintGL() +{ + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + glLoadIdentity(); + glTranslatef(0.0, 0.0, -10.0); + glRotatef(xRot / 16.0, 1.0, 0.0, 0.0); + glRotatef(yRot / 16.0, 0.0, 1.0, 0.0); + glRotatef(zRot / 16.0, 0.0, 0.0, 1.0); + logo->draw(); +} +//! [7] + +//! [8] +void GLWidget::resizeGL(int width, int height) +{ + int side = qMin(width, height); + glViewport((width - side) / 2, (height - side) / 2, side, side); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); +#ifdef QT_OPENGL_ES_1 + glOrthof(-0.5, +0.5, -0.5, +0.5, 4.0, 15.0); +#else + glOrtho(-0.5, +0.5, -0.5, +0.5, 4.0, 15.0); +#endif + glMatrixMode(GL_MODELVIEW); +} +//! [8] + +//! [9] +void GLWidget::mousePressEvent(QMouseEvent *event) +{ + lastPos = event->pos(); +} +//! [9] + +//! [10] +void GLWidget::mouseMoveEvent(QMouseEvent *event) +{ + int dx = event->x() - lastPos.x(); + int dy = event->y() - lastPos.y(); + + if (event->buttons() & Qt::LeftButton) { + setXRotation(xRot + 8 * dy); + setYRotation(yRot + 8 * dx); + } else if (event->buttons() & Qt::RightButton) { + setXRotation(xRot + 8 * dy); + setZRotation(zRot + 8 * dx); + } + lastPos = event->pos(); +} +//! [10] diff --git a/examples/opengl/hellogl/glwidget.h b/examples/opengl/hellogl/glwidget.h new file mode 100644 index 0000000000..1f12b11e32 --- /dev/null +++ b/examples/opengl/hellogl/glwidget.h @@ -0,0 +1,94 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef GLWIDGET_H +#define GLWIDGET_H + +#include <QGLWidget> + +class QtLogo; + +//! [0] +class GLWidget : public QGLWidget +{ + Q_OBJECT + +public: + GLWidget(QWidget *parent = 0); + ~GLWidget(); + + QSize minimumSizeHint() const; + QSize sizeHint() const; +//! [0] + +//! [1] +public slots: + void setXRotation(int angle); + void setYRotation(int angle); + void setZRotation(int angle); + +signals: + void xRotationChanged(int angle); + void yRotationChanged(int angle); + void zRotationChanged(int angle); +//! [1] + +//! [2] +protected: + void initializeGL(); + void paintGL(); + void resizeGL(int width, int height); + void mousePressEvent(QMouseEvent *event); + void mouseMoveEvent(QMouseEvent *event); +//! [2] + +//! [3] +private: + QtLogo *logo; + int xRot; + int yRot; + int zRot; + QPoint lastPos; + QColor qtGreen; + QColor qtPurple; +}; +//! [3] + +#endif diff --git a/examples/opengl/hellogl/hellogl.pro b/examples/opengl/hellogl/hellogl.pro new file mode 100644 index 0000000000..fd9699b4cb --- /dev/null +++ b/examples/opengl/hellogl/hellogl.pro @@ -0,0 +1,19 @@ +VPATH += ../shared +INCLUDEPATH += ../shared + +HEADERS = glwidget.h \ + window.h \ + qtlogo.h +SOURCES = glwidget.cpp \ + main.cpp \ + window.cpp \ + qtlogo.cpp +QT += opengl + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/hellogl +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS hellogl.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/hellogl +INSTALLS += target sources + +symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) diff --git a/examples/opengl/hellogl/main.cpp b/examples/opengl/hellogl/main.cpp new file mode 100644 index 0000000000..cc14a70bcc --- /dev/null +++ b/examples/opengl/hellogl/main.cpp @@ -0,0 +1,59 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> +#include <QDesktopWidget> + +#include "window.h" + +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + Window window; + window.resize(window.sizeHint()); + int desktopArea = QApplication::desktop()->width() * + QApplication::desktop()->height(); + int widgetArea = window.width() * window.height(); + if (((float)widgetArea / (float)desktopArea) < 0.75f) + window.show(); + else + window.showMaximized(); + return app.exec(); +} diff --git a/examples/opengl/hellogl/window.cpp b/examples/opengl/hellogl/window.cpp new file mode 100644 index 0000000000..ef7cc2ad09 --- /dev/null +++ b/examples/opengl/hellogl/window.cpp @@ -0,0 +1,97 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "glwidget.h" +#include "window.h" + +//! [0] +Window::Window() +{ + glWidget = new GLWidget; + + xSlider = createSlider(); + ySlider = createSlider(); + zSlider = createSlider(); + + connect(xSlider, SIGNAL(valueChanged(int)), glWidget, SLOT(setXRotation(int))); + connect(glWidget, SIGNAL(xRotationChanged(int)), xSlider, SLOT(setValue(int))); + connect(ySlider, SIGNAL(valueChanged(int)), glWidget, SLOT(setYRotation(int))); + connect(glWidget, SIGNAL(yRotationChanged(int)), ySlider, SLOT(setValue(int))); + connect(zSlider, SIGNAL(valueChanged(int)), glWidget, SLOT(setZRotation(int))); + connect(glWidget, SIGNAL(zRotationChanged(int)), zSlider, SLOT(setValue(int))); +//! [0] + +//! [1] + QHBoxLayout *mainLayout = new QHBoxLayout; + mainLayout->addWidget(glWidget); + mainLayout->addWidget(xSlider); + mainLayout->addWidget(ySlider); + mainLayout->addWidget(zSlider); + setLayout(mainLayout); + + xSlider->setValue(15 * 16); + ySlider->setValue(345 * 16); + zSlider->setValue(0 * 16); + setWindowTitle(tr("Hello GL")); +} +//! [1] + +//! [2] +QSlider *Window::createSlider() +{ + QSlider *slider = new QSlider(Qt::Vertical); + slider->setRange(0, 360 * 16); + slider->setSingleStep(16); + slider->setPageStep(15 * 16); + slider->setTickInterval(15 * 16); + slider->setTickPosition(QSlider::TicksRight); + return slider; +} +//! [2] + +void Window::keyPressEvent(QKeyEvent *e) +{ + if (e->key() == Qt::Key_Escape) + close(); + else + QWidget::keyPressEvent(e); +} diff --git a/examples/opengl/hellogl/window.h b/examples/opengl/hellogl/window.h new file mode 100644 index 0000000000..0ac3d64ee4 --- /dev/null +++ b/examples/opengl/hellogl/window.h @@ -0,0 +1,72 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef WINDOW_H +#define WINDOW_H + +#include <QWidget> + +QT_BEGIN_NAMESPACE +class QSlider; +QT_END_NAMESPACE +//! [0] +class GLWidget; + +class Window : public QWidget +{ + Q_OBJECT + +public: + Window(); + +protected: + void keyPressEvent(QKeyEvent *event); + +private: + QSlider *createSlider(); + + GLWidget *glWidget; + QSlider *xSlider; + QSlider *ySlider; + QSlider *zSlider; +}; +//! [0] + +#endif diff --git a/examples/opengl/hellogl_es/bubble.cpp b/examples/opengl/hellogl_es/bubble.cpp new file mode 100644 index 0000000000..167d9abd92 --- /dev/null +++ b/examples/opengl/hellogl_es/bubble.cpp @@ -0,0 +1,139 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "bubble.h" + +Bubble::Bubble(const QPointF &position, qreal radius, const QPointF &velocity) + : position(position), vel(velocity), radius(radius) +{ + innerColor = randomColor(); + outerColor = randomColor(); + cache = 0; + updateBrush(); +} + +//! [0] +void Bubble::updateCache() +{ + if (cache) + delete cache; + cache = new QImage(qRound(radius * 2 + 2), qRound(radius * 2 + 2), QImage::Format_ARGB32); + cache->fill(0x00000000); + QPainter p(cache); + p.setRenderHint(QPainter::HighQualityAntialiasing); + QPen pen(Qt::white); + pen.setWidth(2); + p.setPen(pen); + p.setBrush(brush); + p.drawEllipse(0, 0, int(2*radius), int(2*radius)); +} +//! [0] + +Bubble::~Bubble() +{ + if (cache) + delete cache; +} + +void Bubble::updateBrush() +{ + QRadialGradient gradient(QPointF(radius, radius), radius, + QPointF(radius*0.5, radius*0.5)); + + gradient.setColorAt(0, QColor(255, 255, 255, 255)); + gradient.setColorAt(0.25, innerColor); + gradient.setColorAt(1, outerColor); + brush = QBrush(gradient); + updateCache(); +} + +//! [1] +void Bubble::drawBubble(QPainter *painter) +{ + painter->save(); + painter->translate(position.x() - radius, position.y() - radius); + painter->setOpacity(0.8); + painter->drawImage(0, 0, *cache); + painter->restore(); +} +//! [1] + +QColor Bubble::randomColor() +{ + int red = int(185 + 70.0*qrand()/(RAND_MAX+1.0)); + int green = int(185 + 70.0*qrand()/(RAND_MAX+1.0)); + int blue = int(205 + 50.0*qrand()/(RAND_MAX+1.0)); + int alpha = int(91 + 100.0*qrand()/(RAND_MAX+1.0)); + + return QColor(red, green, blue, alpha); +} + +void Bubble::move(const QRect &bbox) +{ + position += vel; + qreal leftOverflow = position.x() - radius - bbox.left(); + qreal rightOverflow = position.x() + radius - bbox.right(); + qreal topOverflow = position.y() - radius - bbox.top(); + qreal bottomOverflow = position.y() + radius - bbox.bottom(); + + if (leftOverflow < 0.0) { + position.setX(position.x() - 2 * leftOverflow); + vel.setX(-vel.x()); + } else if (rightOverflow > 0.0) { + position.setX(position.x() - 2 * rightOverflow); + vel.setX(-vel.x()); + } + + if (topOverflow < 0.0) { + position.setY(position.y() - 2 * topOverflow); + vel.setY(-vel.y()); + } else if (bottomOverflow > 0.0) { + position.setY(position.y() - 2 * bottomOverflow); + vel.setY(-vel.y()); + } +} + +QRectF Bubble::rect() +{ + return QRectF(position.x() - radius, position.y() - radius, + 2 * radius, 2 * radius); +} diff --git a/examples/opengl/hellogl_es/bubble.h b/examples/opengl/hellogl_es/bubble.h new file mode 100644 index 0000000000..21f5add43e --- /dev/null +++ b/examples/opengl/hellogl_es/bubble.h @@ -0,0 +1,76 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef BUBBLE_H +#define BUBBLE_H + +#include <QBrush> +#include <QColor> +#include <QPointF> +#include <QRect> +#include <QRectF> + +class QPainter; + +class Bubble +{ +public: + Bubble(const QPointF &position, qreal radius, const QPointF &velocity); + ~Bubble(); + + void drawBubble(QPainter *painter); + void updateBrush(); + void move(const QRect &bbox); + void updateCache(); + QRectF rect(); + +private: + QColor randomColor(); + + QBrush brush; + QPointF position; + QPointF vel; + qreal radius; + QColor innerColor; + QColor outerColor; + QImage *cache; +}; + +#endif diff --git a/examples/opengl/hellogl_es/glwidget.cpp b/examples/opengl/hellogl_es/glwidget.cpp new file mode 100644 index 0000000000..80444dfdbe --- /dev/null +++ b/examples/opengl/hellogl_es/glwidget.cpp @@ -0,0 +1,455 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "glwidget.h" +#include <QPainter> +#include <math.h> + +#include "bubble.h" + + +const int bubbleNum = 8; + +inline void CrossProduct(qreal &xOut, qreal &yOut, qreal &zOut, qreal x1, qreal y1, qreal z1, qreal x2, qreal y2, qreal z2) +{ + xOut = y1 * z2 - z1 * y2; + yOut = z1 * x2 - x1 * z2; + zOut = x1 * y2 - y1 * x2; +} + +inline void Normalize(qreal &x, qreal &y, qreal &z) +{ + qreal l = sqrt(x*x + y*y + z*z); + x = x / l; + y = y / l; + z = z / l; +} + +GLWidget::GLWidget(QWidget *parent) + : QGLWidget(parent) +{ + qtLogo = true; + createdVertices = 0; + createdNormals = 0; + m_vertexNumber = 0; + frames = 0; + setAttribute(Qt::WA_PaintOnScreen); + setAttribute(Qt::WA_NoSystemBackground); + setAutoBufferSwap(false); + m_showBubbles = true; +} + +GLWidget::~GLWidget() +{ + if (createdVertices) + delete[] createdVertices; + if (createdNormals) + delete[] createdNormals; +} + +void GLWidget::setScaling(int scale) { + + if (scale > 50) + m_fScale = 1 + qreal(scale -50) / 50 * 0.5; + else if (scale < 50) + m_fScale = 1- (qreal(50 - scale) / 50 * 1/2); + else + m_fScale = 1; +} + +void GLWidget::setLogo() { + qtLogo = true; +} + +void GLWidget::setTexture() { + qtLogo = false; +} + +void GLWidget::showBubbles(bool bubbles) +{ + m_showBubbles = bubbles; +} + +//! [2] +void GLWidget::paintQtLogo() +{ + glDisable(GL_TEXTURE_2D); + glEnableClientState(GL_VERTEX_ARRAY); + glVertexPointer(3,GL_FLOAT,0, createdVertices); + glEnableClientState(GL_NORMAL_ARRAY); + glNormalPointer(GL_FLOAT,0,createdNormals); + glDrawArrays(GL_TRIANGLES, 0, m_vertexNumber / 3); +} +//! [2] + +void GLWidget::paintTexturedCube() +{ + glEnable(GL_TEXTURE_2D); + glBindTexture(GL_TEXTURE_2D, m_uiTexture); + GLfloat afVertices[] = { + -0.5, 0.5, 0.5, 0.5,-0.5,0.5,-0.5,-0.5,0.5, + 0.5, -0.5, 0.5, -0.5,0.5,0.5,0.5,0.5,0.5, + -0.5, -0.5, -0.5, 0.5,-0.5,-0.5,-0.5,0.5,-0.5, + 0.5, 0.5, -0.5, -0.5,0.5,-0.5,0.5,-0.5,-0.5, + + 0.5, -0.5, -0.5, 0.5,-0.5,0.5,0.5,0.5,-0.5, + 0.5, 0.5, 0.5, 0.5,0.5,-0.5,0.5,-0.5,0.5, + -0.5, 0.5, -0.5, -0.5,-0.5,0.5,-0.5,-0.5,-0.5, + -0.5, -0.5, 0.5, -0.5,0.5,-0.5,-0.5,0.5,0.5, + + 0.5, 0.5, -0.5, -0.5, 0.5, 0.5, -0.5, 0.5, -0.5, + -0.5, 0.5, 0.5, 0.5, 0.5, -0.5, 0.5, 0.5, 0.5, + -0.5, -0.5, -0.5, -0.5, -0.5, 0.5, 0.5, -0.5, -0.5, + 0.5, -0.5, 0.5, 0.5, -0.5, -0.5, -0.5, -0.5, 0.5 + }; + glEnableClientState(GL_VERTEX_ARRAY); + glVertexPointer(3,GL_FLOAT,0,afVertices); + + GLfloat afTexCoord[] = { + 0.0f,0.0f, 1.0f,1.0f, 1.0f,0.0f, + 1.0f,1.0f, 0.0f,0.0f, 0.0f,1.0f, + 1.0f,1.0f, 1.0f,0.0f, 0.0f,1.0f, + 0.0f,0.0f, 0.0f,1.0f, 1.0f,0.0f, + + 1.0f,1.0f, 1.0f,0.0f, 0.0f,1.0f, + 0.0f,0.0f, 0.0f,1.0f, 1.0f,0.0f, + 0.0f,0.0f, 1.0f,1.0f, 1.0f,0.0f, + 1.0f,1.0f, 0.0f,0.0f, 0.0f,1.0f, + + 0.0f,1.0f, 1.0f,0.0f, 1.0f,1.0f, + 1.0f,0.0f, 0.0f,1.0f, 0.0f,0.0f, + 1.0f,0.0f, 1.0f,1.0f, 0.0f,0.0f, + 0.0f,1.0f, 0.0f,0.0f, 1.0f,1.0f + }; + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + glTexCoordPointer(2,GL_FLOAT,0,afTexCoord); + + GLfloat afNormals[] = { + + 0,0,-1, 0,0,-1, 0,0,-1, + 0,0,-1, 0,0,-1, 0,0,-1, + 0,0,1, 0,0,1, 0,0,1, + 0,0,1, 0,0,1, 0,0,1, + + -1,0,0, -1,0,0, -1,0,0, + -1,0,0, -1,0,0, -1,0,0, + 1,0,0, 1,0,0, 1,0,0, + 1,0,0, 1,0,0, 1,0,0, + + 0,-1,0, 0,-1,0, 0,-1,0, + 0,-1,0, 0,-1,0, 0,-1,0, + 0,1,0, 0,1,0, 0,1,0, + 0,1,0, 0,1,0, 0,1,0 + }; + glEnableClientState(GL_NORMAL_ARRAY); + glNormalPointer(GL_FLOAT,0,afNormals); + + glDrawArrays(GL_TRIANGLES, 0, 36); +} + +void GLWidget::initializeGL () +{ + glClearColor(0.1f, 0.1f, 0.2f, 1.0f); + + glEnable(GL_TEXTURE_2D); + glGenTextures(1, &m_uiTexture); + m_uiTexture = bindTexture(QImage(":/qt.png")); + + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR ); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + + GLfloat aLightPosition[] = {0.0f,0.3f,1.0f,0.0f}; + + glLightfv(GL_LIGHT0, GL_SPOT_DIRECTION, aLightPosition); + m_fAngle = 0; + m_fScale = 1; + createGeometry(); + createBubbles(bubbleNum - bubbles.count()); +} + +void GLWidget::paintGL() +{ + createBubbles(bubbleNum - bubbles.count()); + +//! [3] + QPainter painter; + painter.begin(this); + + glMatrixMode(GL_PROJECTION); + glPushMatrix(); + glLoadIdentity(); +//! [3] + +//! [4] + glMatrixMode(GL_MODELVIEW); + glPushMatrix(); + glMatrixMode(GL_TEXTURE); + glPushMatrix(); + + //Since OpenGL ES does not support glPush/PopAttrib(GL_ALL_ATTRIB_BITS) + //we have to take care of the states ourselves + + glClearColor(0.1f, 0.1f, 0.2f, 1.0f); + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + glEnable(GL_TEXTURE_2D); + + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR ); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + + glShadeModel(GL_FLAT); + glFrontFace(GL_CW); + glCullFace(GL_FRONT); + glEnable(GL_CULL_FACE); + glEnable(GL_DEPTH_TEST); + + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + + glRotatef(m_fAngle, 0.0f, 1.0f, 0.0f); + glRotatef(m_fAngle, 1.0f, 0.0f, 0.0f); + glRotatef(m_fAngle, 0.0f, 0.0f, 1.0f); + glScalef(m_fScale, m_fScale,m_fScale); + glTranslatef(0.0f,-0.2f,0.0f); + + GLfloat matDiff[] = {0.40f, 1.0f, 0.0f, 1.0f}; + glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, matDiff); + + if (qtLogo) + paintQtLogo(); + else + paintTexturedCube(); +//! [4] + +//![5] + glMatrixMode(GL_MODELVIEW); + glPopMatrix(); + glMatrixMode(GL_PROJECTION); + glPopMatrix(); + glMatrixMode(GL_TEXTURE); + glPopMatrix(); + + glDisable(GL_LIGHTING); + glDisable(GL_LIGHT0); + + glDisable(GL_DEPTH_TEST); + glDisable(GL_CULL_FACE); +//![5] + +//! [6] + if (m_showBubbles) + foreach (Bubble *bubble, bubbles) { + bubble->drawBubble(&painter); + } +//! [6] + +//! [7] + QString framesPerSecond; + framesPerSecond.setNum(frames /(time.elapsed() / 1000.0), 'f', 2); + + painter.setPen(Qt::white); + + painter.drawText(20, 40, framesPerSecond + " fps"); + + painter.end(); +//! [7] + +//! [8] + swapBuffers(); +//! [8] + + QMutableListIterator<Bubble*> iter(bubbles); + + while (iter.hasNext()) { + Bubble *bubble = iter.next(); + bubble->move(rect()); + } + if (!(frames % 100)) { + time.start(); + frames = 0; + } + m_fAngle += 1.0f; + frames ++; +} + +void GLWidget::createBubbles(int number) +{ + for (int i = 0; i < number; ++i) { + QPointF position(width()*(0.1 + (0.8*qrand()/(RAND_MAX+1.0))), + height()*(0.1 + (0.8*qrand()/(RAND_MAX+1.0)))); + qreal radius = qMin(width(), height())*(0.0175 + 0.0875*qrand()/(RAND_MAX+1.0)); + QPointF velocity(width()*0.0175*(-0.5 + qrand()/(RAND_MAX+1.0)), + height()*0.0175*(-0.5 + qrand()/(RAND_MAX+1.0))); + + bubbles.append(new Bubble(position, radius, velocity)); + } +} + +void GLWidget::createGeometry() +{ + vertices.clear(); + normals.clear(); + + qreal x1 = +0.06f; + qreal y1 = -0.14f; + qreal x2 = +0.14f; + qreal y2 = -0.06f; + qreal x3 = +0.08f; + qreal y3 = +0.00f; + qreal x4 = +0.30f; + qreal y4 = +0.22f; + + quad(x1, y1, x2, y2, y2, x2, y1, x1); + quad(x3, y3, x4, y4, y4, x4, y3, x3); + + extrude(x1, y1, x2, y2); + extrude(x2, y2, y2, x2); + extrude(y2, x2, y1, x1); + extrude(y1, x1, x1, y1); + extrude(x3, y3, x4, y4); + extrude(x4, y4, y4, x4); + extrude(y4, x4, y3, x3); + + const qreal Pi = 3.14159f; + const int NumSectors = 100; + + for (int i = 0; i < NumSectors; ++i) { + qreal angle1 = (i * 2 * Pi) / NumSectors; + qreal x5 = 0.30 * sin(angle1); + qreal y5 = 0.30 * cos(angle1); + qreal x6 = 0.20 * sin(angle1); + qreal y6 = 0.20 * cos(angle1); + + qreal angle2 = ((i + 1) * 2 * Pi) / NumSectors; + qreal x7 = 0.20 * sin(angle2); + qreal y7 = 0.20 * cos(angle2); + qreal x8 = 0.30 * sin(angle2); + qreal y8 = 0.30 * cos(angle2); + + quad(x5, y5, x6, y6, x7, y7, x8, y8); + + extrude(x6, y6, x7, y7); + extrude(x8, y8, x5, y5); + } + +//! [1] + m_vertexNumber = vertices.size(); + createdVertices = new GLfloat[m_vertexNumber]; + createdNormals = new GLfloat[m_vertexNumber]; + for (int i = 0;i < m_vertexNumber;i++) { + createdVertices[i] = vertices.at(i) * 2; + createdNormals[i] = normals.at(i); + } + vertices.clear(); + normals.clear(); +} +//! [1] + +//! [0] +void GLWidget::quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4) +{ + qreal nx, ny, nz; + + vertices << x1 << y1 << -0.05f; + vertices << x2 << y2 << -0.05f; + vertices << x4 << y4 << -0.05f; + + vertices << x3 << y3 << -0.05f; + vertices << x4 << y4 << -0.05f; + vertices << x2 << y2 << -0.05f; + + CrossProduct(nx, ny, nz, x2 - x1, y2 - y1, 0, x4 - x1, y4 - y1, 0); + Normalize(nx, ny, nz); + + normals << nx << ny << nz; + normals << nx << ny << nz; + normals << nx << ny << nz; + + normals << nx << ny << nz; + normals << nx << ny << nz; + normals << nx << ny << nz; + + vertices << x4 << y4 << 0.05f; + vertices << x2 << y2 << 0.05f; + vertices << x1 << y1 << 0.05f; + + vertices << x2 << y2 << 0.05f; + vertices << x4 << y4 << 0.05f; + vertices << x3 << y3 << 0.05f; + + CrossProduct(nx, ny, nz, x2 - x4, y2 - y4, 0, x1 - x4, y1 - y4, 0); + Normalize(nx, ny, nz); + + normals << nx << ny << nz; + normals << nx << ny << nz; + normals << nx << ny << nz; + + normals << nx << ny << nz; + normals << nx << ny << nz; + normals << nx << ny << nz; +} +//! [0] + +void GLWidget::extrude(qreal x1, qreal y1, qreal x2, qreal y2) +{ + qreal nx, ny, nz; + + vertices << x1 << y1 << +0.05f; + vertices << x2 << y2 << +0.05f; + vertices << x1 << y1 << -0.05f; + + vertices << x2 << y2 << -0.05f; + vertices << x1 << y1 << -0.05f; + vertices << x2 << y2 << +0.05f; + + CrossProduct(nx, ny, nz, x2 - x1, y2 - y1, 0.0f, 0.0f, 0.0f, -0.1f); + Normalize(nx, ny, nz); + + normals << nx << ny << nz; + normals << nx << ny << nz; + normals << nx << ny << nz; + + normals << nx << ny << nz; + normals << nx << ny << nz; + normals << nx << ny << nz; +} diff --git a/examples/opengl/hellogl_es/glwidget.h b/examples/opengl/hellogl_es/glwidget.h new file mode 100644 index 0000000000..9908f63fd8 --- /dev/null +++ b/examples/opengl/hellogl_es/glwidget.h @@ -0,0 +1,85 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef GLWIDGET_H +#define GLWIDGET_H + +#include <QGLWidget> +#include <QTime> + + + +class Bubble; +class GLWidget : public QGLWidget { + + Q_OBJECT +public: + GLWidget(QWidget *parent = 0); + ~GLWidget(); +public slots: + void setScaling(int scale); + void setLogo(); + void setTexture(); + void showBubbles(bool); +protected: + void paintGL (); + void initializeGL (); +private: + GLuint m_uiTexture; + qreal m_fAngle; + qreal m_fScale; + bool m_showBubbles; + void paintTexturedCube(); + void paintQtLogo(); + void createGeometry(); + void createBubbles(int number); + void quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4); + void extrude(qreal x1, qreal y1, qreal x2, qreal y2); + QList<qreal> vertices; + QList<qreal> normals; + GLfloat *createdVertices; + GLfloat *createdNormals; + int m_vertexNumber; + bool qtLogo; + QList<Bubble*> bubbles; + int frames; + QTime time; +}; +#endif diff --git a/examples/opengl/hellogl_es/hellogl_es.pro b/examples/opengl/hellogl_es/hellogl_es.pro new file mode 100644 index 0000000000..774bfef265 --- /dev/null +++ b/examples/opengl/hellogl_es/hellogl_es.pro @@ -0,0 +1,27 @@ +###################################################################### +# Automatically generated by qmake (2.01a) Thu Oct 4 19:01:12 2007 +###################################################################### + +TEMPLATE = app +TARGET = +DEPENDPATH += . +INCLUDEPATH += . + +# Input +SOURCES += main.cpp +SOURCES += glwidget.cpp +SOURCES += mainwindow.cpp +SOURCES += bubble.cpp + +HEADERS += glwidget.h +HEADERS += mainwindow.h +HEADERS += bubble.h + +RESOURCES += texture.qrc +QT += opengl + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/hellogl_es +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS hellogl_es.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/hellogl_es +INSTALLS += target sources diff --git a/examples/opengl/hellogl_es/main.cpp b/examples/opengl/hellogl_es/main.cpp new file mode 100644 index 0000000000..5693d7ad55 --- /dev/null +++ b/examples/opengl/hellogl_es/main.cpp @@ -0,0 +1,52 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> +#include <QMainWindow> +#include "mainwindow.h" + +int main( int argc, char ** argv ) +{ + Q_INIT_RESOURCE(texture); + QApplication a( argc, argv ); + MainWindow mw; + mw.showMaximized(); + return a.exec(); +} diff --git a/examples/opengl/hellogl_es/mainwindow.cpp b/examples/opengl/hellogl_es/mainwindow.cpp new file mode 100644 index 0000000000..cd253fcd19 --- /dev/null +++ b/examples/opengl/hellogl_es/mainwindow.cpp @@ -0,0 +1,107 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "mainwindow.h" + +#include <QApplication> +#include <QMenuBar> +#include <QGroupBox> +#include <QGridLayout> +#include <QSlider> +#include <QLabel> +#include <QTimer> + +#include "glwidget.h" + +MainWindow::MainWindow() +{ + GLWidget *glwidget = new GLWidget(); + QLabel *label = new QLabel(this); + QTimer *timer = new QTimer(this); + QSlider *slider = new QSlider(this); + slider->setOrientation(Qt::Horizontal); + + slider->setRange(0, 100); + slider->setSliderPosition(50); + timer->setInterval(10); + label->setText("A QGlWidget with OpenGl ES"); + label->setAlignment(Qt::AlignHCenter); + + QGroupBox * groupBox = new QGroupBox(this); + setCentralWidget(groupBox); + groupBox->setTitle("OpenGL ES Example"); + + QGridLayout *layout = new QGridLayout(groupBox); + + layout->addWidget(glwidget,1,0,8,1); + layout->addWidget(label,9,0,1,1); + layout->addWidget(slider, 11,0,1,1); + + groupBox->setLayout(layout); + + QMenu *fileMenu = new QMenu("File"); + QMenu *helpMenu = new QMenu("Help"); + QMenu *showMenu = new QMenu("Show"); + menuBar()->addMenu(fileMenu); + menuBar()->addMenu(showMenu); + menuBar()->addMenu(helpMenu); + QAction *exit = new QAction("Exit", fileMenu); + QAction *aboutQt = new QAction("AboutQt", helpMenu); + QAction *showLogo = new QAction("Show 3D Logo", showMenu); + QAction *showTexture = new QAction("Show 2D Texture", showMenu); + QAction *showBubbles = new QAction("Show bubbles", showMenu); + showBubbles->setCheckable(true); + showBubbles->setChecked(true); + fileMenu->addAction(exit); + helpMenu->addAction(aboutQt); + showMenu->addAction(showLogo); + showMenu->addAction(showTexture); + showMenu->addAction(showBubbles); + + QObject::connect(timer, SIGNAL(timeout()), glwidget, SLOT(updateGL())); + QObject::connect(exit, SIGNAL(triggered(bool)), this, SLOT(close())); + QObject::connect(aboutQt, SIGNAL(triggered(bool)), qApp, SLOT(aboutQt())); + + QObject::connect(showLogo, SIGNAL(triggered(bool)), glwidget, SLOT(setLogo())); + QObject::connect(showTexture, SIGNAL(triggered(bool)), glwidget, SLOT(setTexture())); + QObject::connect(showBubbles, SIGNAL(triggered(bool)), glwidget, SLOT(showBubbles(bool))); + QObject::connect(slider, SIGNAL(valueChanged(int)), glwidget, SLOT(setScaling(int))); + timer->start(); +} diff --git a/examples/opengl/hellogl_es/mainwindow.h b/examples/opengl/hellogl_es/mainwindow.h new file mode 100644 index 0000000000..a0a6adfc3c --- /dev/null +++ b/examples/opengl/hellogl_es/mainwindow.h @@ -0,0 +1,59 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef MAINWINDOW_H +#define MAINWINDOW_H + +#include <QMainWindow> + +class QSlider; +class GLWidget; + +class MainWindow : public QMainWindow +{ + Q_OBJECT + +public: + MainWindow(); + +private: +}; + +#endif diff --git a/examples/opengl/hellogl_es/qt.png b/examples/opengl/hellogl_es/qt.png Binary files differnew file mode 100644 index 0000000000..79e383cf50 --- /dev/null +++ b/examples/opengl/hellogl_es/qt.png diff --git a/examples/opengl/hellogl_es/texture.qrc b/examples/opengl/hellogl_es/texture.qrc new file mode 100644 index 0000000000..ff1d0e535f --- /dev/null +++ b/examples/opengl/hellogl_es/texture.qrc @@ -0,0 +1,5 @@ +<!DOCTYPE RCC><RCC version="1.0"> +<qresource> + <file>qt.png</file> +</qresource> +</RCC> diff --git a/examples/opengl/hellogl_es2/bubble.cpp b/examples/opengl/hellogl_es2/bubble.cpp new file mode 100644 index 0000000000..167d9abd92 --- /dev/null +++ b/examples/opengl/hellogl_es2/bubble.cpp @@ -0,0 +1,139 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "bubble.h" + +Bubble::Bubble(const QPointF &position, qreal radius, const QPointF &velocity) + : position(position), vel(velocity), radius(radius) +{ + innerColor = randomColor(); + outerColor = randomColor(); + cache = 0; + updateBrush(); +} + +//! [0] +void Bubble::updateCache() +{ + if (cache) + delete cache; + cache = new QImage(qRound(radius * 2 + 2), qRound(radius * 2 + 2), QImage::Format_ARGB32); + cache->fill(0x00000000); + QPainter p(cache); + p.setRenderHint(QPainter::HighQualityAntialiasing); + QPen pen(Qt::white); + pen.setWidth(2); + p.setPen(pen); + p.setBrush(brush); + p.drawEllipse(0, 0, int(2*radius), int(2*radius)); +} +//! [0] + +Bubble::~Bubble() +{ + if (cache) + delete cache; +} + +void Bubble::updateBrush() +{ + QRadialGradient gradient(QPointF(radius, radius), radius, + QPointF(radius*0.5, radius*0.5)); + + gradient.setColorAt(0, QColor(255, 255, 255, 255)); + gradient.setColorAt(0.25, innerColor); + gradient.setColorAt(1, outerColor); + brush = QBrush(gradient); + updateCache(); +} + +//! [1] +void Bubble::drawBubble(QPainter *painter) +{ + painter->save(); + painter->translate(position.x() - radius, position.y() - radius); + painter->setOpacity(0.8); + painter->drawImage(0, 0, *cache); + painter->restore(); +} +//! [1] + +QColor Bubble::randomColor() +{ + int red = int(185 + 70.0*qrand()/(RAND_MAX+1.0)); + int green = int(185 + 70.0*qrand()/(RAND_MAX+1.0)); + int blue = int(205 + 50.0*qrand()/(RAND_MAX+1.0)); + int alpha = int(91 + 100.0*qrand()/(RAND_MAX+1.0)); + + return QColor(red, green, blue, alpha); +} + +void Bubble::move(const QRect &bbox) +{ + position += vel; + qreal leftOverflow = position.x() - radius - bbox.left(); + qreal rightOverflow = position.x() + radius - bbox.right(); + qreal topOverflow = position.y() - radius - bbox.top(); + qreal bottomOverflow = position.y() + radius - bbox.bottom(); + + if (leftOverflow < 0.0) { + position.setX(position.x() - 2 * leftOverflow); + vel.setX(-vel.x()); + } else if (rightOverflow > 0.0) { + position.setX(position.x() - 2 * rightOverflow); + vel.setX(-vel.x()); + } + + if (topOverflow < 0.0) { + position.setY(position.y() - 2 * topOverflow); + vel.setY(-vel.y()); + } else if (bottomOverflow > 0.0) { + position.setY(position.y() - 2 * bottomOverflow); + vel.setY(-vel.y()); + } +} + +QRectF Bubble::rect() +{ + return QRectF(position.x() - radius, position.y() - radius, + 2 * radius, 2 * radius); +} diff --git a/examples/opengl/hellogl_es2/bubble.h b/examples/opengl/hellogl_es2/bubble.h new file mode 100644 index 0000000000..21f5add43e --- /dev/null +++ b/examples/opengl/hellogl_es2/bubble.h @@ -0,0 +1,76 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef BUBBLE_H +#define BUBBLE_H + +#include <QBrush> +#include <QColor> +#include <QPointF> +#include <QRect> +#include <QRectF> + +class QPainter; + +class Bubble +{ +public: + Bubble(const QPointF &position, qreal radius, const QPointF &velocity); + ~Bubble(); + + void drawBubble(QPainter *painter); + void updateBrush(); + void move(const QRect &bbox); + void updateCache(); + QRectF rect(); + +private: + QColor randomColor(); + + QBrush brush; + QPointF position; + QPointF vel; + qreal radius; + QColor innerColor; + QColor outerColor; + QImage *cache; +}; + +#endif diff --git a/examples/opengl/hellogl_es2/glwidget.cpp b/examples/opengl/hellogl_es2/glwidget.cpp new file mode 100644 index 0000000000..90c322bdec --- /dev/null +++ b/examples/opengl/hellogl_es2/glwidget.cpp @@ -0,0 +1,463 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "glwidget.h" +#include <QPainter> +#include <QPaintEngine> +#include <math.h> + +#include "bubble.h" + + +const int bubbleNum = 8; + +GLWidget::GLWidget(QWidget *parent) + : QGLWidget(parent) +{ + qtLogo = true; + frames = 0; + setAttribute(Qt::WA_PaintOnScreen); + setAttribute(Qt::WA_NoSystemBackground); + setAutoBufferSwap(false); + m_showBubbles = true; +#ifndef Q_WS_QWS + setMinimumSize(300, 250); +#endif +} + +GLWidget::~GLWidget() +{ +} + +void GLWidget::setScaling(int scale) { + + if (scale > 50) + m_fScale = 1 + qreal(scale -50) / 50 * 0.5; + else if (scale < 50) + m_fScale = 1- (qreal(50 - scale) / 50 * 1/2); + else + m_fScale = 1; +} + +void GLWidget::setLogo() { + qtLogo = true; +} + +void GLWidget::setTexture() { + qtLogo = false; +} + +void GLWidget::showBubbles(bool bubbles) +{ + m_showBubbles = bubbles; +} + +void GLWidget::paintQtLogo() +{ + program1.enableAttributeArray(normalAttr1); + program1.enableAttributeArray(vertexAttr1); + program1.setAttributeArray(vertexAttr1, vertices.constData()); + program1.setAttributeArray(normalAttr1, normals.constData()); + glDrawArrays(GL_TRIANGLES, 0, vertices.size()); + program1.disableAttributeArray(normalAttr1); + program1.disableAttributeArray(vertexAttr1); +} + +void GLWidget::paintTexturedCube() +{ + glBindTexture(GL_TEXTURE_2D, m_uiTexture); + GLfloat afVertices[] = { + -0.5, 0.5, 0.5, 0.5,-0.5,0.5,-0.5,-0.5,0.5, + 0.5, -0.5, 0.5, -0.5,0.5,0.5,0.5,0.5,0.5, + -0.5, -0.5, -0.5, 0.5,-0.5,-0.5,-0.5,0.5,-0.5, + 0.5, 0.5, -0.5, -0.5,0.5,-0.5,0.5,-0.5,-0.5, + + 0.5, -0.5, -0.5, 0.5,-0.5,0.5,0.5,0.5,-0.5, + 0.5, 0.5, 0.5, 0.5,0.5,-0.5,0.5,-0.5,0.5, + -0.5, 0.5, -0.5, -0.5,-0.5,0.5,-0.5,-0.5,-0.5, + -0.5, -0.5, 0.5, -0.5,0.5,-0.5,-0.5,0.5,0.5, + + 0.5, 0.5, -0.5, -0.5, 0.5, 0.5, -0.5, 0.5, -0.5, + -0.5, 0.5, 0.5, 0.5, 0.5, -0.5, 0.5, 0.5, 0.5, + -0.5, -0.5, -0.5, -0.5, -0.5, 0.5, 0.5, -0.5, -0.5, + 0.5, -0.5, 0.5, 0.5, -0.5, -0.5, -0.5, -0.5, 0.5 + }; + program2.setAttributeArray(vertexAttr2, afVertices, 3); + + GLfloat afTexCoord[] = { + 0.0f,0.0f, 1.0f,1.0f, 1.0f,0.0f, + 1.0f,1.0f, 0.0f,0.0f, 0.0f,1.0f, + 1.0f,1.0f, 1.0f,0.0f, 0.0f,1.0f, + 0.0f,0.0f, 0.0f,1.0f, 1.0f,0.0f, + + 1.0f,1.0f, 1.0f,0.0f, 0.0f,1.0f, + 0.0f,0.0f, 0.0f,1.0f, 1.0f,0.0f, + 0.0f,0.0f, 1.0f,1.0f, 1.0f,0.0f, + 1.0f,1.0f, 0.0f,0.0f, 0.0f,1.0f, + + 0.0f,1.0f, 1.0f,0.0f, 1.0f,1.0f, + 1.0f,0.0f, 0.0f,1.0f, 0.0f,0.0f, + 1.0f,0.0f, 1.0f,1.0f, 0.0f,0.0f, + 0.0f,1.0f, 0.0f,0.0f, 1.0f,1.0f + }; + program2.setAttributeArray(texCoordAttr2, afTexCoord, 2); + + GLfloat afNormals[] = { + + 0,0,-1, 0,0,-1, 0,0,-1, + 0,0,-1, 0,0,-1, 0,0,-1, + 0,0,1, 0,0,1, 0,0,1, + 0,0,1, 0,0,1, 0,0,1, + + -1,0,0, -1,0,0, -1,0,0, + -1,0,0, -1,0,0, -1,0,0, + 1,0,0, 1,0,0, 1,0,0, + 1,0,0, 1,0,0, 1,0,0, + + 0,-1,0, 0,-1,0, 0,-1,0, + 0,-1,0, 0,-1,0, 0,-1,0, + 0,1,0, 0,1,0, 0,1,0, + 0,1,0, 0,1,0, 0,1,0 + }; + program2.setAttributeArray(normalAttr2, afNormals, 3); + + program2.setUniformValue(textureUniform2, 0); // use texture unit 0 + + program2.enableAttributeArray(vertexAttr2); + program2.enableAttributeArray(normalAttr2); + program2.enableAttributeArray(texCoordAttr2); + + glDrawArrays(GL_TRIANGLES, 0, 36); + + program2.disableAttributeArray(vertexAttr2); + program2.disableAttributeArray(normalAttr2); + program2.disableAttributeArray(texCoordAttr2); +} + +void GLWidget::initializeGL () +{ + glClearColor(0.1f, 0.1f, 0.2f, 1.0f); + + glGenTextures(1, &m_uiTexture); + m_uiTexture = bindTexture(QImage(":/qt.png")); + + QGLShader *vshader1 = new QGLShader(QGLShader::Vertex, this); + const char *vsrc1 = + "attribute highp vec4 vertex;\n" + "attribute mediump vec3 normal;\n" + "uniform mediump mat4 matrix;\n" + "varying mediump vec4 color;\n" + "void main(void)\n" + "{\n" + " vec3 toLight = normalize(vec3(0.0, 0.3, 1.0));\n" + " float angle = max(dot(normal, toLight), 0.0);\n" + " vec3 col = vec3(0.40, 1.0, 0.0);\n" + " color = vec4(col * 0.2 + col * 0.8 * angle, 1.0);\n" + " color = clamp(color, 0.0, 1.0);\n" + " gl_Position = matrix * vertex;\n" + "}\n"; + vshader1->compileSourceCode(vsrc1); + + QGLShader *fshader1 = new QGLShader(QGLShader::Fragment, this); + const char *fsrc1 = + "varying mediump vec4 color;\n" + "void main(void)\n" + "{\n" + " gl_FragColor = color;\n" + "}\n"; + fshader1->compileSourceCode(fsrc1); + + program1.addShader(vshader1); + program1.addShader(fshader1); + program1.link(); + + vertexAttr1 = program1.attributeLocation("vertex"); + normalAttr1 = program1.attributeLocation("normal"); + matrixUniform1 = program1.uniformLocation("matrix"); + + QGLShader *vshader2 = new QGLShader(QGLShader::Vertex); + const char *vsrc2 = + "attribute highp vec4 vertex;\n" + "attribute highp vec4 texCoord;\n" + "attribute mediump vec3 normal;\n" + "uniform mediump mat4 matrix;\n" + "varying highp vec4 texc;\n" + "varying mediump float angle;\n" + "void main(void)\n" + "{\n" + " vec3 toLight = normalize(vec3(0.0, 0.3, 1.0));\n" + " angle = max(dot(normal, toLight), 0.0);\n" + " gl_Position = matrix * vertex;\n" + " texc = texCoord;\n" + "}\n"; + vshader2->compileSourceCode(vsrc2); + + QGLShader *fshader2 = new QGLShader(QGLShader::Fragment); + const char *fsrc2 = + "varying highp vec4 texc;\n" + "uniform sampler2D tex;\n" + "varying mediump float angle;\n" + "void main(void)\n" + "{\n" + " highp vec3 color = texture2D(tex, texc.st).rgb;\n" + " color = color * 0.2 + color * 0.8 * angle;\n" + " gl_FragColor = vec4(clamp(color, 0.0, 1.0), 1.0);\n" + "}\n"; + fshader2->compileSourceCode(fsrc2); + + program2.addShader(vshader2); + program2.addShader(fshader2); + program2.link(); + + vertexAttr2 = program2.attributeLocation("vertex"); + normalAttr2 = program2.attributeLocation("normal"); + texCoordAttr2 = program2.attributeLocation("texCoord"); + matrixUniform2 = program2.uniformLocation("matrix"); + textureUniform2 = program2.uniformLocation("tex"); + + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR ); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); + + m_fAngle = 0; + m_fScale = 1; + createGeometry(); + createBubbles(bubbleNum - bubbles.count()); +} + +void GLWidget::paintGL() +{ + createBubbles(bubbleNum - bubbles.count()); + + QPainter painter; + painter.begin(this); + + painter.beginNativePainting(); + + glClearColor(0.1f, 0.1f, 0.2f, 1.0f); + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR ); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); + + glFrontFace(GL_CW); + glCullFace(GL_FRONT); + glEnable(GL_CULL_FACE); + glEnable(GL_DEPTH_TEST); + + QMatrix4x4 modelview; + modelview.rotate(m_fAngle, 0.0f, 1.0f, 0.0f); + modelview.rotate(m_fAngle, 1.0f, 0.0f, 0.0f); + modelview.rotate(m_fAngle, 0.0f, 0.0f, 1.0f); + modelview.scale(m_fScale); + modelview.translate(0.0f, -0.2f, 0.0f); + + if (qtLogo) { + program1.bind(); + program1.setUniformValue(matrixUniform1, modelview); + paintQtLogo(); + program1.release(); + } else { + program2.bind(); + program1.setUniformValue(matrixUniform2, modelview); + paintTexturedCube(); + program2.release(); + } + + glDisable(GL_DEPTH_TEST); + glDisable(GL_CULL_FACE); + + painter.endNativePainting(); + + if (m_showBubbles) + foreach (Bubble *bubble, bubbles) { + bubble->drawBubble(&painter); + } + + QString framesPerSecond; + framesPerSecond.setNum(frames /(time.elapsed() / 1000.0), 'f', 2); + + painter.setPen(Qt::white); + + painter.drawText(20, 40, framesPerSecond + " fps"); + + painter.end(); + + swapBuffers(); + + QMutableListIterator<Bubble*> iter(bubbles); + + while (iter.hasNext()) { + Bubble *bubble = iter.next(); + bubble->move(rect()); + } + if (!(frames % 100)) { + time.start(); + frames = 0; + } + m_fAngle += 1.0f; + frames ++; +} + +void GLWidget::createBubbles(int number) +{ + for (int i = 0; i < number; ++i) { + QPointF position(width()*(0.1 + (0.8*qrand()/(RAND_MAX+1.0))), + height()*(0.1 + (0.8*qrand()/(RAND_MAX+1.0)))); + qreal radius = qMin(width(), height())*(0.0175 + 0.0875*qrand()/(RAND_MAX+1.0)); + QPointF velocity(width()*0.0175*(-0.5 + qrand()/(RAND_MAX+1.0)), + height()*0.0175*(-0.5 + qrand()/(RAND_MAX+1.0))); + + bubbles.append(new Bubble(position, radius, velocity)); + } +} + +void GLWidget::createGeometry() +{ + vertices.clear(); + normals.clear(); + + qreal x1 = +0.06f; + qreal y1 = -0.14f; + qreal x2 = +0.14f; + qreal y2 = -0.06f; + qreal x3 = +0.08f; + qreal y3 = +0.00f; + qreal x4 = +0.30f; + qreal y4 = +0.22f; + + quad(x1, y1, x2, y2, y2, x2, y1, x1); + quad(x3, y3, x4, y4, y4, x4, y3, x3); + + extrude(x1, y1, x2, y2); + extrude(x2, y2, y2, x2); + extrude(y2, x2, y1, x1); + extrude(y1, x1, x1, y1); + extrude(x3, y3, x4, y4); + extrude(x4, y4, y4, x4); + extrude(y4, x4, y3, x3); + + const qreal Pi = 3.14159f; + const int NumSectors = 100; + + for (int i = 0; i < NumSectors; ++i) { + qreal angle1 = (i * 2 * Pi) / NumSectors; + qreal x5 = 0.30 * sin(angle1); + qreal y5 = 0.30 * cos(angle1); + qreal x6 = 0.20 * sin(angle1); + qreal y6 = 0.20 * cos(angle1); + + qreal angle2 = ((i + 1) * 2 * Pi) / NumSectors; + qreal x7 = 0.20 * sin(angle2); + qreal y7 = 0.20 * cos(angle2); + qreal x8 = 0.30 * sin(angle2); + qreal y8 = 0.30 * cos(angle2); + + quad(x5, y5, x6, y6, x7, y7, x8, y8); + + extrude(x6, y6, x7, y7); + extrude(x8, y8, x5, y5); + } + + for (int i = 0;i < vertices.size();i++) + vertices[i] *= 2.0f; +} + +void GLWidget::quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4) +{ + vertices << QVector3D(x1, y1, -0.05f); + vertices << QVector3D(x2, y2, -0.05f); + vertices << QVector3D(x4, y4, -0.05f); + + vertices << QVector3D(x3, y3, -0.05f); + vertices << QVector3D(x4, y4, -0.05f); + vertices << QVector3D(x2, y2, -0.05f); + + QVector3D n = QVector3D::normal + (QVector3D(x2 - x1, y2 - y1, 0.0f), QVector3D(x4 - x1, y4 - y1, 0.0f)); + + normals << n; + normals << n; + normals << n; + + normals << n; + normals << n; + normals << n; + + vertices << QVector3D(x4, y4, 0.05f); + vertices << QVector3D(x2, y2, 0.05f); + vertices << QVector3D(x1, y1, 0.05f); + + vertices << QVector3D(x2, y2, 0.05f); + vertices << QVector3D(x4, y4, 0.05f); + vertices << QVector3D(x3, y3, 0.05f); + + n = QVector3D::normal + (QVector3D(x2 - x4, y2 - y4, 0.0f), QVector3D(x1 - x4, y1 - y4, 0.0f)); + + normals << n; + normals << n; + normals << n; + + normals << n; + normals << n; + normals << n; +} + +void GLWidget::extrude(qreal x1, qreal y1, qreal x2, qreal y2) +{ + vertices << QVector3D(x1, y1, +0.05f); + vertices << QVector3D(x2, y2, +0.05f); + vertices << QVector3D(x1, y1, -0.05f); + + vertices << QVector3D(x2, y2, -0.05f); + vertices << QVector3D(x1, y1, -0.05f); + vertices << QVector3D(x2, y2, +0.05f); + + QVector3D n = QVector3D::normal + (QVector3D(x2 - x1, y2 - y1, 0.0f), QVector3D(0.0f, 0.0f, -0.1f)); + + normals << n; + normals << n; + normals << n; + + normals << n; + normals << n; + normals << n; +} diff --git a/examples/opengl/hellogl_es2/glwidget.h b/examples/opengl/hellogl_es2/glwidget.h new file mode 100644 index 0000000000..44b78d6120 --- /dev/null +++ b/examples/opengl/hellogl_es2/glwidget.h @@ -0,0 +1,94 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef GLWIDGET_H +#define GLWIDGET_H + +#include <QGLWidget> +#include <QtGui/qvector3d.h> +#include <QtGui/qmatrix4x4.h> +#include <QtOpenGL/qglshaderprogram.h> +#include <QTime> +#include <QVector> + +class Bubble; +class GLWidget : public QGLWidget { + + Q_OBJECT +public: + GLWidget(QWidget *parent = 0); + ~GLWidget(); +public slots: + void setScaling(int scale); + void setLogo(); + void setTexture(); + void showBubbles(bool); +protected: + void paintGL (); + void initializeGL (); +private: + GLuint m_uiTexture; + qreal m_fAngle; + qreal m_fScale; + bool m_showBubbles; + void paintTexturedCube(); + void paintQtLogo(); + void createGeometry(); + void createBubbles(int number); + void quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4); + void extrude(qreal x1, qreal y1, qreal x2, qreal y2); + QVector<QVector3D> vertices; + QVector<QVector3D> normals; + bool qtLogo; + QList<Bubble*> bubbles; + int frames; + QTime time; + QGLShaderProgram program1; + QGLShaderProgram program2; + int vertexAttr1; + int normalAttr1; + int matrixUniform1; + int vertexAttr2; + int normalAttr2; + int texCoordAttr2; + int matrixUniform2; + int textureUniform2; +}; +#endif diff --git a/examples/opengl/hellogl_es2/hellogl_es2.pro b/examples/opengl/hellogl_es2/hellogl_es2.pro new file mode 100644 index 0000000000..8016aa37b0 --- /dev/null +++ b/examples/opengl/hellogl_es2/hellogl_es2.pro @@ -0,0 +1,27 @@ +###################################################################### +# Automatically generated by qmake (2.01a) Thu Oct 4 19:01:12 2007 +###################################################################### + +TEMPLATE = app +TARGET = +DEPENDPATH += . +INCLUDEPATH += . + +# Input +SOURCES += main.cpp +SOURCES += glwidget.cpp +SOURCES += mainwindow.cpp +SOURCES += bubble.cpp + +HEADERS += glwidget.h +HEADERS += mainwindow.h +HEADERS += bubble.h + +RESOURCES += texture.qrc +QT += opengl + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/hellogl_es2 +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS hellogl_es2.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/hellogl_es2 +INSTALLS += target sources diff --git a/examples/opengl/hellogl_es2/main.cpp b/examples/opengl/hellogl_es2/main.cpp new file mode 100644 index 0000000000..5693d7ad55 --- /dev/null +++ b/examples/opengl/hellogl_es2/main.cpp @@ -0,0 +1,52 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> +#include <QMainWindow> +#include "mainwindow.h" + +int main( int argc, char ** argv ) +{ + Q_INIT_RESOURCE(texture); + QApplication a( argc, argv ); + MainWindow mw; + mw.showMaximized(); + return a.exec(); +} diff --git a/examples/opengl/hellogl_es2/mainwindow.cpp b/examples/opengl/hellogl_es2/mainwindow.cpp new file mode 100644 index 0000000000..cd253fcd19 --- /dev/null +++ b/examples/opengl/hellogl_es2/mainwindow.cpp @@ -0,0 +1,107 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "mainwindow.h" + +#include <QApplication> +#include <QMenuBar> +#include <QGroupBox> +#include <QGridLayout> +#include <QSlider> +#include <QLabel> +#include <QTimer> + +#include "glwidget.h" + +MainWindow::MainWindow() +{ + GLWidget *glwidget = new GLWidget(); + QLabel *label = new QLabel(this); + QTimer *timer = new QTimer(this); + QSlider *slider = new QSlider(this); + slider->setOrientation(Qt::Horizontal); + + slider->setRange(0, 100); + slider->setSliderPosition(50); + timer->setInterval(10); + label->setText("A QGlWidget with OpenGl ES"); + label->setAlignment(Qt::AlignHCenter); + + QGroupBox * groupBox = new QGroupBox(this); + setCentralWidget(groupBox); + groupBox->setTitle("OpenGL ES Example"); + + QGridLayout *layout = new QGridLayout(groupBox); + + layout->addWidget(glwidget,1,0,8,1); + layout->addWidget(label,9,0,1,1); + layout->addWidget(slider, 11,0,1,1); + + groupBox->setLayout(layout); + + QMenu *fileMenu = new QMenu("File"); + QMenu *helpMenu = new QMenu("Help"); + QMenu *showMenu = new QMenu("Show"); + menuBar()->addMenu(fileMenu); + menuBar()->addMenu(showMenu); + menuBar()->addMenu(helpMenu); + QAction *exit = new QAction("Exit", fileMenu); + QAction *aboutQt = new QAction("AboutQt", helpMenu); + QAction *showLogo = new QAction("Show 3D Logo", showMenu); + QAction *showTexture = new QAction("Show 2D Texture", showMenu); + QAction *showBubbles = new QAction("Show bubbles", showMenu); + showBubbles->setCheckable(true); + showBubbles->setChecked(true); + fileMenu->addAction(exit); + helpMenu->addAction(aboutQt); + showMenu->addAction(showLogo); + showMenu->addAction(showTexture); + showMenu->addAction(showBubbles); + + QObject::connect(timer, SIGNAL(timeout()), glwidget, SLOT(updateGL())); + QObject::connect(exit, SIGNAL(triggered(bool)), this, SLOT(close())); + QObject::connect(aboutQt, SIGNAL(triggered(bool)), qApp, SLOT(aboutQt())); + + QObject::connect(showLogo, SIGNAL(triggered(bool)), glwidget, SLOT(setLogo())); + QObject::connect(showTexture, SIGNAL(triggered(bool)), glwidget, SLOT(setTexture())); + QObject::connect(showBubbles, SIGNAL(triggered(bool)), glwidget, SLOT(showBubbles(bool))); + QObject::connect(slider, SIGNAL(valueChanged(int)), glwidget, SLOT(setScaling(int))); + timer->start(); +} diff --git a/examples/opengl/hellogl_es2/mainwindow.h b/examples/opengl/hellogl_es2/mainwindow.h new file mode 100644 index 0000000000..a0a6adfc3c --- /dev/null +++ b/examples/opengl/hellogl_es2/mainwindow.h @@ -0,0 +1,59 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef MAINWINDOW_H +#define MAINWINDOW_H + +#include <QMainWindow> + +class QSlider; +class GLWidget; + +class MainWindow : public QMainWindow +{ + Q_OBJECT + +public: + MainWindow(); + +private: +}; + +#endif diff --git a/examples/opengl/hellogl_es2/qt.png b/examples/opengl/hellogl_es2/qt.png Binary files differnew file mode 100644 index 0000000000..79e383cf50 --- /dev/null +++ b/examples/opengl/hellogl_es2/qt.png diff --git a/examples/opengl/hellogl_es2/texture.qrc b/examples/opengl/hellogl_es2/texture.qrc new file mode 100644 index 0000000000..ff1d0e535f --- /dev/null +++ b/examples/opengl/hellogl_es2/texture.qrc @@ -0,0 +1,5 @@ +<!DOCTYPE RCC><RCC version="1.0"> +<qresource> + <file>qt.png</file> +</qresource> +</RCC> diff --git a/examples/opengl/opengl.pro b/examples/opengl/opengl.pro new file mode 100644 index 0000000000..77b6fa13aa --- /dev/null +++ b/examples/opengl/opengl.pro @@ -0,0 +1,35 @@ +TEMPLATE = subdirs + +contains(QT_CONFIG, opengles1)|contains(QT_CONFIG, opengles2){ + contains(QT_CONFIG, opengles2) { + SUBDIRS = hellogl_es2 + } else { + SUBDIRS = hellogl_es + } + SUBDIRS += textures + contains(QT_CONFIG, opengles1) { + SUBDIRS += hellogl + } +} else { + SUBDIRS = 2dpainting \ + grabber \ + hellogl \ + overpainting \ + pbuffers \ + framebufferobject2 \ + samplebuffers \ + textures + + contains(QT_CONFIG, svg) { + SUBDIRS += framebufferobject \ + pbuffers2 + } +} + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS opengl.pro README +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl +INSTALLS += target sources + +symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) diff --git a/examples/opengl/overpainting/bubble.cpp b/examples/opengl/overpainting/bubble.cpp new file mode 100644 index 0000000000..eb315057fa --- /dev/null +++ b/examples/opengl/overpainting/bubble.cpp @@ -0,0 +1,112 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "bubble.h" + +Bubble::Bubble(const QPointF &position, qreal radius, const QPointF &velocity) + : position(position), vel(velocity), radius(radius) +{ + innerColor = randomColor(); + outerColor = randomColor(); + updateBrush(); +} + +void Bubble::updateBrush() +{ + QRadialGradient gradient(QPointF(radius, radius), radius, + QPointF(radius*0.5, radius*0.5)); + + gradient.setColorAt(0, QColor(255, 255, 255, 255)); + gradient.setColorAt(0.25, innerColor); + gradient.setColorAt(1, outerColor); + brush = QBrush(gradient); +} + +void Bubble::drawBubble(QPainter *painter) +{ + painter->save(); + painter->translate(position.x() - radius, position.y() - radius); + painter->setBrush(brush); + painter->drawEllipse(0, 0, int(2*radius), int(2*radius)); + painter->restore(); +} + +QColor Bubble::randomColor() +{ + int red = int(205 + 50.0*qrand()/(RAND_MAX+1.0)); + int green = int(205 + 50.0*qrand()/(RAND_MAX+1.0)); + int blue = int(205 + 50.0*qrand()/(RAND_MAX+1.0)); + int alpha = int(91 + 100.0*qrand()/(RAND_MAX+1.0)); + + return QColor(red, green, blue, alpha); +} + +void Bubble::move(const QRect &bbox) +{ + position += vel; + qreal leftOverflow = position.x() - radius - bbox.left(); + qreal rightOverflow = position.x() + radius - bbox.right(); + qreal topOverflow = position.y() - radius - bbox.top(); + qreal bottomOverflow = position.y() + radius - bbox.bottom(); + + if (leftOverflow < 0.0) { + position.setX(position.x() - 2 * leftOverflow); + vel.setX(-vel.x()); + } else if (rightOverflow > 0.0) { + position.setX(position.x() - 2 * rightOverflow); + vel.setX(-vel.x()); + } + + if (topOverflow < 0.0) { + position.setY(position.y() - 2 * topOverflow); + vel.setY(-vel.y()); + } else if (bottomOverflow > 0.0) { + position.setY(position.y() - 2 * bottomOverflow); + vel.setY(-vel.y()); + } +} + +QRectF Bubble::rect() +{ + return QRectF(position.x() - radius, position.y() - radius, + 2 * radius, 2 * radius); +} diff --git a/examples/opengl/overpainting/bubble.h b/examples/opengl/overpainting/bubble.h new file mode 100644 index 0000000000..025e92bc00 --- /dev/null +++ b/examples/opengl/overpainting/bubble.h @@ -0,0 +1,75 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef BUBBLE_H +#define BUBBLE_H + +#include <QBrush> +#include <QColor> +#include <QPointF> +#include <QRect> +#include <QRectF> + +QT_BEGIN_NAMESPACE +class QPainter; +QT_END_NAMESPACE + +class Bubble +{ +public: + Bubble(const QPointF &position, qreal radius, const QPointF &velocity); + + void drawBubble(QPainter *painter); + void updateBrush(); + void move(const QRect &bbox); + QRectF rect(); + +private: + QColor randomColor(); + + QBrush brush; + QPointF position; + QPointF vel; + qreal radius; + QColor innerColor; + QColor outerColor; +}; + +#endif diff --git a/examples/opengl/overpainting/glwidget.cpp b/examples/opengl/overpainting/glwidget.cpp new file mode 100644 index 0000000000..ded7bf1cf5 --- /dev/null +++ b/examples/opengl/overpainting/glwidget.cpp @@ -0,0 +1,283 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> +#include <QtOpenGL> +#include <stdlib.h> + +#include <math.h> + +#include "bubble.h" +#include "qtlogo.h" +#include "glwidget.h" + +#ifndef GL_MULTISAMPLE +#define GL_MULTISAMPLE 0x809D +#endif + +//! [0] +GLWidget::GLWidget(QWidget *parent) + : QGLWidget(QGLFormat(QGL::SampleBuffers), parent) +{ + QTime midnight(0, 0, 0); + qsrand(midnight.secsTo(QTime::currentTime())); + + logo = 0; + xRot = 0; + yRot = 0; + zRot = 0; + + qtGreen = QColor::fromCmykF(0.40, 0.0, 1.0, 0.0); + qtPurple = QColor::fromCmykF(0.39, 0.39, 0.0, 0.0); + + animationTimer.setSingleShot(false); + connect(&animationTimer, SIGNAL(timeout()), this, SLOT(animate())); + animationTimer.start(25); + + setAutoFillBackground(false); + setMinimumSize(200, 200); + setWindowTitle(tr("Overpainting a Scene")); +} +//! [0] + +//! [1] +GLWidget::~GLWidget() +{ +} +//! [1] + +static void qNormalizeAngle(int &angle) +{ + while (angle < 0) + angle += 360 * 16; + while (angle > 360 * 16) + angle -= 360 * 16; +} + +void GLWidget::setXRotation(int angle) +{ + qNormalizeAngle(angle); + if (angle != xRot) + xRot = angle; +} + +void GLWidget::setYRotation(int angle) +{ + qNormalizeAngle(angle); + if (angle != yRot) + yRot = angle; +} + +void GLWidget::setZRotation(int angle) +{ + qNormalizeAngle(angle); + if (angle != zRot) + zRot = angle; +} + +//! [2] +void GLWidget::initializeGL() +{ + glEnable(GL_MULTISAMPLE); + + logo = new QtLogo(this); + logo->setColor(qtGreen.dark()); +} +//! [2] + +void GLWidget::mousePressEvent(QMouseEvent *event) +{ + lastPos = event->pos(); +} + +void GLWidget::mouseMoveEvent(QMouseEvent *event) +{ + int dx = event->x() - lastPos.x(); + int dy = event->y() - lastPos.y(); + + if (event->buttons() & Qt::LeftButton) { + setXRotation(xRot + 8 * dy); + setYRotation(yRot + 8 * dx); + } else if (event->buttons() & Qt::RightButton) { + setXRotation(xRot + 8 * dy); + setZRotation(zRot + 8 * dx); + } + lastPos = event->pos(); +} + +void GLWidget::paintEvent(QPaintEvent *event) +{ + makeCurrent(); +//! [4] + glMatrixMode(GL_MODELVIEW); + glPushMatrix(); +//! [4] + +//! [6] + qglClearColor(qtPurple.dark()); + glShadeModel(GL_SMOOTH); + glEnable(GL_DEPTH_TEST); + glEnable(GL_CULL_FACE); + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + glEnable(GL_MULTISAMPLE); + static GLfloat lightPosition[4] = { 0.5, 5.0, 7.0, 1.0 }; + glLightfv(GL_LIGHT0, GL_POSITION, lightPosition); + + setupViewport(width(), height()); +//! [6] + +//! [7] + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + glLoadIdentity(); + glTranslatef(0.0, 0.0, -10.0); + glRotatef(xRot / 16.0, 1.0, 0.0, 0.0); + glRotatef(yRot / 16.0, 0.0, 1.0, 0.0); + glRotatef(zRot / 16.0, 0.0, 0.0, 1.0); + + logo->draw(); +//! [7] + +//! [8] + glShadeModel(GL_FLAT); + glDisable(GL_CULL_FACE); + glDisable(GL_DEPTH_TEST); + glDisable(GL_LIGHTING); + + glMatrixMode(GL_MODELVIEW); + glPopMatrix(); +//! [8] + +//! [10] + QPainter painter(this); + painter.setRenderHint(QPainter::Antialiasing); + foreach (Bubble *bubble, bubbles) { + if (bubble->rect().intersects(event->rect())) + bubble->drawBubble(&painter); + } + drawInstructions(&painter); + painter.end(); +} +//! [10] + +//! [11] +void GLWidget::resizeGL(int width, int height) +{ + setupViewport(width, height); +} +//! [11] + +//! [12] +void GLWidget::showEvent(QShowEvent *event) +{ + Q_UNUSED(event); + createBubbles(20 - bubbles.count()); +} +//! [12] + +QSize GLWidget::sizeHint() const +{ + return QSize(400, 400); +} + +void GLWidget::createBubbles(int number) +{ + for (int i = 0; i < number; ++i) { + QPointF position(width()*(0.1 + (0.8*qrand()/(RAND_MAX+1.0))), + height()*(0.1 + (0.8*qrand()/(RAND_MAX+1.0)))); + qreal radius = qMin(width(), height())*(0.0125 + 0.0875*qrand()/(RAND_MAX+1.0)); + QPointF velocity(width()*0.0125*(-0.5 + qrand()/(RAND_MAX+1.0)), + height()*0.0125*(-0.5 + qrand()/(RAND_MAX+1.0))); + + bubbles.append(new Bubble(position, radius, velocity)); + } +} + +//! [13] +void GLWidget::animate() +{ + QMutableListIterator<Bubble*> iter(bubbles); + + while (iter.hasNext()) { + Bubble *bubble = iter.next(); + bubble->move(rect()); + } + update(); +} +//! [13] + +//! [14] +void GLWidget::setupViewport(int width, int height) +{ + int side = qMin(width, height); + glViewport((width - side) / 2, (height - side) / 2, side, side); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); +#ifdef QT_OPENGL_ES + glOrthof(-0.5, +0.5, -0.5, 0.5, 4.0, 15.0); +#else + glOrtho(-0.5, +0.5, -0.5, 0.5, 4.0, 15.0); +#endif + glMatrixMode(GL_MODELVIEW); +} +//! [14] + +//! [15] +void GLWidget::drawInstructions(QPainter *painter) +{ + QString text = tr("Click and drag with the left mouse button " + "to rotate the Qt logo."); + QFontMetrics metrics = QFontMetrics(font()); + int border = qMax(4, metrics.leading()); + + QRect rect = metrics.boundingRect(0, 0, width() - 2*border, int(height()*0.125), + Qt::AlignCenter | Qt::TextWordWrap, text); + painter->setRenderHint(QPainter::TextAntialiasing); + painter->fillRect(QRect(0, 0, width(), rect.height() + 2*border), + QColor(0, 0, 0, 127)); + painter->setPen(Qt::white); + painter->fillRect(QRect(0, 0, width(), rect.height() + 2*border), + QColor(0, 0, 0, 127)); + painter->drawText((width() - rect.width())/2, border, + rect.width(), rect.height(), + Qt::AlignCenter | Qt::TextWordWrap, text); +} +//! [15] diff --git a/examples/opengl/overpainting/glwidget.h b/examples/opengl/overpainting/glwidget.h new file mode 100644 index 0000000000..178fdf7fe5 --- /dev/null +++ b/examples/opengl/overpainting/glwidget.h @@ -0,0 +1,111 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef GLWIDGET_H +#define GLWIDGET_H + +#include <QBrush> +#include <QFont> +#include <QImage> +#include <QPen> +#include <QGLWidget> +#include <QTimer> + +class Bubble; +class QtLogo; +QT_BEGIN_NAMESPACE +class QPaintEvent; +class QWidget; +QT_END_NAMESPACE + +//! [0] +class GLWidget : public QGLWidget +{ + Q_OBJECT + +public: + GLWidget(QWidget *parent = 0); + ~GLWidget(); +//! [0] + + QSize sizeHint() const; + int xRotation() const { return xRot; } + int yRotation() const { return yRot; } + int zRotation() const { return zRot; } + +public slots: + void setXRotation(int angle); + void setYRotation(int angle); + void setZRotation(int angle); + +//! [1] +protected: + void initializeGL(); + void paintEvent(QPaintEvent *event); + void resizeGL(int width, int height); + void mousePressEvent(QMouseEvent *event); + void mouseMoveEvent(QMouseEvent *event); + void showEvent(QShowEvent *event); + +private slots: + void animate(); + +private: + void createBubbles(int number); + void drawInstructions(QPainter *painter); +//! [1] + void setupViewport(int width, int height); + + QColor qtGreen; + QColor qtPurple; + + GLuint object; + int xRot; + int yRot; + int zRot; + QPoint lastPos; +//! [4] + QtLogo *logo; + QList<Bubble*> bubbles; + QTimer animationTimer; +//! [4] +}; + +#endif diff --git a/examples/opengl/overpainting/main.cpp b/examples/opengl/overpainting/main.cpp new file mode 100644 index 0000000000..fd9b206b69 --- /dev/null +++ b/examples/opengl/overpainting/main.cpp @@ -0,0 +1,50 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> +#include "glwidget.h" + +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + GLWidget window; + window.show(); + return app.exec(); +} diff --git a/examples/opengl/overpainting/overpainting.pro b/examples/opengl/overpainting/overpainting.pro new file mode 100644 index 0000000000..741199d210 --- /dev/null +++ b/examples/opengl/overpainting/overpainting.pro @@ -0,0 +1,23 @@ +VPATH += ../shared +INCLUDEPATH += ../shared + +QT += opengl +HEADERS = bubble.h \ + glwidget.h \ + qtlogo.h +SOURCES = bubble.cpp \ + glwidget.cpp \ + main.cpp \ + qtlogo.cpp + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/overpainting +sources.files = $$SOURCES \ + $$HEADERS \ + $$RESOURCES \ + $$FORMS \ + overpainting.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/overpainting +INSTALLS += target \ + sources +symbian:include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) diff --git a/examples/opengl/pbuffers/cube.cpp b/examples/opengl/pbuffers/cube.cpp new file mode 100644 index 0000000000..631595a2d7 --- /dev/null +++ b/examples/opengl/pbuffers/cube.cpp @@ -0,0 +1,348 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "cube.h" +#include "glwidget.h" + +#include <QtGui/QImage> +#include <QtCore/QPropertyAnimation> + +static const qreal FACE_SIZE = 0.4; + +static const qreal speeds[] = { 3.8f, 4.4f, 5.6f }; +static const qreal amplitudes[] = { 2.0f, 2.5f, 3.0f }; + +static inline void qSetColor(float colorVec[], QColor c) +{ + colorVec[0] = c.redF(); + colorVec[1] = c.greenF(); + colorVec[2] = c.blueF(); + colorVec[3] = c.alphaF(); +} + +int Geometry::append(const QVector3D &a, const QVector3D &n, const QVector2D &t) +{ + int v = vertices.count(); + vertices.append(a); + normals.append(n); + texCoords.append(t); + faces.append(v); + colors.append(QVector4D(0.6f, 0.6f, 0.6f, 1.0f)); + return v; +} + +void Geometry::addQuad(const QVector3D &a, const QVector3D &b, + const QVector3D &c, const QVector3D &d, + const QVector<QVector2D> &tex) +{ + QVector3D norm = QVector3D::normal(a, b, c); + // append first triangle + int aref = append(a, norm, tex[0]); + append(b, norm, tex[1]); + int cref = append(c, norm, tex[2]); + // append second triangle + faces.append(aref); + faces.append(cref); + append(d, norm, tex[3]); +} + +void Geometry::loadArrays() const +{ + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_NORMAL_ARRAY); + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + glEnableClientState(GL_COLOR_ARRAY); + glVertexPointer(3, GL_FLOAT, 0, vertices.constData()); + glNormalPointer(GL_FLOAT, 0, normals.constData()); + glTexCoordPointer(2, GL_FLOAT, 0, texCoords.constData()); + glColorPointer(4, GL_FLOAT, 0, colors.constData()); +} + +void Geometry::setColors(int start, GLfloat colorArray[4][4]) +{ + int off = faces[start]; + for (int i = 0; i < 4; ++i) + colors[i + off] = QVector4D(colorArray[i][0], + colorArray[i][1], + colorArray[i][2], + colorArray[i][3]); +} + +Tile::Tile(const QVector3D &loc) + : location(loc) + , start(0) + , count(0) + , useFlatColor(false) + , geom(0) +{ + qSetColor(faceColor, QColor(Qt::darkGray)); +} + +void Tile::setColors(GLfloat colorArray[4][4]) +{ + useFlatColor = true; + geom->setColors(start, colorArray); +} + +static inline void qMultMatrix(const QMatrix4x4 &mat) +{ + if (sizeof(qreal) == sizeof(GLfloat)) + glMultMatrixf((GLfloat*)mat.constData()); +#ifndef QT_OPENGL_ES + else if (sizeof(qreal) == sizeof(GLdouble)) + glMultMatrixd((GLdouble*)mat.constData()); +#endif + else + { + GLfloat fmat[16]; + qreal const *r = mat.constData(); + for (int i = 0; i < 16; ++i) + fmat[i] = r[i]; + glMultMatrixf(fmat); + } +} + +void Tile::draw() const +{ + QMatrix4x4 mat; + mat.translate(location); + mat.rotate(orientation); + glMatrixMode(GL_MODELVIEW); + glPushMatrix(); + qMultMatrix(mat); + glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, faceColor); + glDrawElements(GL_TRIANGLES, count, GL_UNSIGNED_SHORT, geom->indices() + start); + glPopMatrix(); +} + +TileBuilder::TileBuilder(Geometry *g, qreal depth, qreal size) + : verts(4) + , tex(4) + , start(g->count()) + , count(0) + , geom(g) +{ + // front face - make a square with bottom-left at origin + verts[br].setX(size); + verts[tr].setX(size); + verts[tr].setY(size); + verts[tl].setY(size); + + // these vert numbers are good for the tex-coords + for (int i = 0; i < 4; ++i) + tex[i] = verts[i].toVector2D(); + + // now move verts half cube width across so cube is centered on origin + for (int i = 0; i < 4; ++i) + verts[i] -= QVector3D(size / 2.0f, size / 2.0f, -depth); + + // add the front face + g->addQuad(verts[bl], verts[br], verts[tr], verts[tl], tex); + + count = g->count() - start; +} + +void TileBuilder::initialize(Tile *tile) const +{ + tile->start = start; + tile->count = count; + tile->geom = geom; + qSetColor(tile->faceColor, color); +} + +Tile *TileBuilder::newTile(const QVector3D &loc) const +{ + Tile *tile = new Tile(loc); + initialize(tile); + return tile; +} + +Cube::Cube(const QVector3D &loc) + : Tile(loc) + , rot(0.0f) + , r(0) + , animGroup(0) +{ +} + +Cube::~Cube() +{ +} + +void Cube::setAltitude(qreal a) +{ + if (location.y() != a) + { + location.setY(a); + emit changed(); + } +} + +void Cube::setRange(qreal r) +{ + if (location.x() != r) + { + location.setX(r); + emit changed(); + } +} + +void Cube::setRotation(qreal r) +{ + if (r != rot) + { + orientation = QQuaternion::fromAxisAndAngle(QVector3D(1.0f, 1.0f, 1.0f), r); + emit changed(); + } +} + +void Cube::removeBounce() +{ + delete animGroup; + animGroup = 0; + delete r; + r = 0; +} + +void Cube::startAnimation() +{ + if (r) + { + r->start(); + r->setCurrentTime(startx); + } + if (animGroup) + animGroup->start(); + if (rtn) + rtn->start(); +} + +void Cube::setAnimationPaused(bool paused) +{ + if (paused) + { + if (r) + r->pause(); + if (animGroup) + animGroup->pause(); + if (rtn) + rtn->pause(); + } + else + { + if (r) + r->resume(); + if (animGroup) + animGroup->resume(); + if (rtn) + rtn->resume(); + } +} + +CubeBuilder::CubeBuilder(Geometry *g, qreal depth, qreal size) + : TileBuilder(g, depth) + , ix(0) +{ + for (int i = 0; i < 4; ++i) + verts[i].setZ(size / 2.0f); + // back face - "extrude" verts down + QVector<QVector3D> back(verts); + for (int i = 0; i < 4; ++i) + back[i].setZ(-size / 2.0f); + + // add the back face + g->addQuad(back[br], back[bl], back[tl], back[tr], tex); + + // add the sides + g->addQuad(back[bl], back[br], verts[br], verts[bl], tex); + g->addQuad(back[br], back[tr], verts[tr], verts[br], tex); + g->addQuad(back[tr], back[tl], verts[tl], verts[tr], tex); + g->addQuad(back[tl], back[bl], verts[bl], verts[tl], tex); + + count = g->count() - start; +} + +Cube *CubeBuilder::newCube(const QVector3D &loc) const +{ + Cube *c = new Cube(loc); + initialize(c); + qreal d = 4000.0f; + qreal d3 = d / 3.0f; + // Animate movement from left to right + c->r = new QPropertyAnimation(c, "range"); + c->r->setStartValue(-1.3f); + c->r->setEndValue(1.3f); + c->startx = ix * d3 * 3.0f; + c->r->setDuration(d * 4.0f); + c->r->setLoopCount(-1); + c->r->setEasingCurve(QEasingCurve(QEasingCurve::CosineCurve)); + + c->animGroup = new QSequentialAnimationGroup(c); + + // Animate movement from bottom to top + QPropertyAnimation *a_up = new QPropertyAnimation(c, "altitude", c->animGroup); + a_up->setEndValue(loc.y()); + a_up->setStartValue(loc.y() + amplitudes[ix]); + a_up->setDuration(d / speeds[ix]); + a_up->setLoopCount(1); + a_up->setEasingCurve(QEasingCurve(QEasingCurve::InQuad)); + + // Animate movement from top to bottom + QPropertyAnimation *a_down = new QPropertyAnimation(c, "altitude", c->animGroup); + a_down->setEndValue(loc.y() + amplitudes[ix]); + a_down->setStartValue(loc.y()); + a_down->setDuration(d / speeds[ix]); + a_down->setLoopCount(1); + a_down->setEasingCurve(QEasingCurve(QEasingCurve::OutQuad)); + + c->animGroup->addAnimation(a_up); + c->animGroup->addAnimation(a_down); + c->animGroup->setLoopCount(-1); + + // Animate rotation + c->rtn = new QPropertyAnimation(c, "rotation"); + c->rtn->setStartValue(c->rot); + c->rtn->setEndValue(359.0f); + c->rtn->setDuration(d * 2.0f); + c->rtn->setLoopCount(-1); + c->rtn->setDuration(d / 2); + ix = (ix + 1) % 3; + return c; +} diff --git a/examples/opengl/pbuffers/cube.h b/examples/opengl/pbuffers/cube.h new file mode 100644 index 0000000000..5c985a3782 --- /dev/null +++ b/examples/opengl/pbuffers/cube.h @@ -0,0 +1,149 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef CUBE_H +#define CUBE_H + +#include <QtOpenGL/qgl.h> +#include <QtCore/qvector.h> +#include <QtCore/qsequentialanimationgroup.h> +#include <QtGui/qmatrix4x4.h> +#include <QtGui/qvector3d.h> +#include <QtGui/qvector2d.h> + +QT_BEGIN_NAMESPACE +class QPropertyAnimation; +QT_END_NAMESPACE + +class Geometry +{ +public: + void loadArrays() const; + void addQuad(const QVector3D &a, const QVector3D &b, + const QVector3D &c, const QVector3D &d, + const QVector<QVector2D> &tex); + void setColors(int start, GLfloat colors[4][4]); + const GLushort *indices() const { return faces.constData(); } + int count() const { return faces.count(); } +private: + QVector<GLushort> faces; + QVector<QVector3D> vertices; + QVector<QVector3D> normals; + QVector<QVector2D> texCoords; + QVector<QVector4D> colors; + int append(const QVector3D &a, const QVector3D &n, const QVector2D &t); + void addTri(const QVector3D &a, const QVector3D &b, const QVector3D &c, const QVector3D &n); + friend class Tile; +}; + +class Tile +{ +public: + void draw() const; + void setColors(GLfloat[4][4]); +protected: + Tile(const QVector3D &loc = QVector3D()); + QVector3D location; + QQuaternion orientation; +private: + int start; + int count; + bool useFlatColor; + GLfloat faceColor[4]; + Geometry *geom; + friend class TileBuilder; +}; + +class TileBuilder +{ +public: + enum { bl, br, tr, tl }; + TileBuilder(Geometry *, qreal depth = 0.0f, qreal size = 1.0f); + Tile *newTile(const QVector3D &loc = QVector3D()) const; + void setColor(QColor c) { color = c; } +protected: + void initialize(Tile *) const; + QVector<QVector3D> verts; + QVector<QVector2D> tex; + int start; + int count; + Geometry *geom; + QColor color; +}; + +class Cube : public QObject, public Tile +{ + Q_OBJECT + Q_PROPERTY(qreal range READ range WRITE setRange) + Q_PROPERTY(qreal altitude READ altitude WRITE setAltitude) + Q_PROPERTY(qreal rotation READ rotation WRITE setRotation) +public: + Cube(const QVector3D &loc = QVector3D()); + ~Cube(); + qreal range() { return location.x(); } + void setRange(qreal r); + qreal altitude() { return location.y(); } + void setAltitude(qreal a); + qreal rotation() { return rot; } + void setRotation(qreal r); + void removeBounce(); + void startAnimation(); + void setAnimationPaused(bool paused); +signals: + void changed(); +private: + qreal rot; + QPropertyAnimation *r; + QPropertyAnimation *rtn; + QSequentialAnimationGroup *animGroup; + qreal startx; + friend class CubeBuilder; +}; + +class CubeBuilder : public TileBuilder +{ +public: + CubeBuilder(Geometry *, qreal depth = 0.0f, qreal size = 1.0f); + Cube *newCube(const QVector3D &loc = QVector3D()) const; +private: + mutable int ix; +}; + +#endif // CUBE_H diff --git a/examples/opengl/pbuffers/cubelogo.png b/examples/opengl/pbuffers/cubelogo.png Binary files differnew file mode 100644 index 0000000000..3ae0f9ba3f --- /dev/null +++ b/examples/opengl/pbuffers/cubelogo.png diff --git a/examples/opengl/pbuffers/glwidget.cpp b/examples/opengl/pbuffers/glwidget.cpp new file mode 100644 index 0000000000..f6f89e5a0e --- /dev/null +++ b/examples/opengl/pbuffers/glwidget.cpp @@ -0,0 +1,246 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "glwidget.h" +#include <math.h> + +#include "cube.h" + +#include <QGLPixelBuffer> + +#ifndef GL_MULTISAMPLE +#define GL_MULTISAMPLE 0x809D +#endif + +static GLfloat colorArray[][4] = { + {0.243f, 0.423f, 0.125f, 1.0f}, + {0.176f, 0.31f, 0.09f, 1.0f}, + {0.4f, 0.69f, 0.212f, 1.0f}, + {0.317f, 0.553f, 0.161f, 1.0f} +}; + +GLWidget::GLWidget(QWidget *parent) + : QGLWidget(QGLFormat(QGL::SampleBuffers), parent) + , geom(0) + , cube(0) +{ + // create the pbuffer + QGLFormat pbufferFormat = format(); + pbufferFormat.setSampleBuffers(false); + pbuffer = new QGLPixelBuffer(QSize(512, 512), pbufferFormat, this); + setWindowTitle(tr("OpenGL pbuffers")); + initializeGeometry(); +} + +GLWidget::~GLWidget() +{ + pbuffer->releaseFromDynamicTexture(); + glDeleteTextures(1, &dynamicTexture); + delete pbuffer; + + qDeleteAll(cubes); + qDeleteAll(tiles); + delete cube; +} + +void GLWidget::initializeGL() +{ + initCommon(); + glShadeModel(GL_SMOOTH); + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + static GLfloat lightPosition[4] = { 0.5, 5.0, 7.0, 1.0 }; + glLightfv(GL_LIGHT0, GL_POSITION, lightPosition); + initPbuffer(); + cube->startAnimation(); + connect(cube, SIGNAL(changed()), this, SLOT(update())); + for (int i = 0; i < 3; ++i) + { + cubes[i]->startAnimation(); + connect(cubes[i], SIGNAL(changed()), this, SLOT(update())); + } +} + +void GLWidget::paintGL() +{ + pbuffer->makeCurrent(); + drawPbuffer(); + // On direct render platforms, drawing onto the pbuffer context above + // automatically updates the dynamic texture. For cases where rendering + // directly to a texture is not supported, explicitly copy. + if (!hasDynamicTextureUpdate) + pbuffer->updateDynamicTexture(dynamicTexture); + makeCurrent(); + + // Use the pbuffer as a texture to render the scene + glBindTexture(GL_TEXTURE_2D, dynamicTexture); + + // set up to render the scene + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + glLoadIdentity(); + glTranslatef(0.0f, 0.0f, -10.0f); + + // draw the background + glPushMatrix(); + glScalef(aspect, 1.0f, 1.0f); + for (int i = 0; i < tiles.count(); ++i) + tiles[i]->draw(); + glPopMatrix(); + + // draw the bouncing cubes + for (int i = 0; i < cubes.count(); ++i) + cubes[i]->draw(); +} + +void GLWidget::initializeGeometry() +{ + geom = new Geometry(); + CubeBuilder cBuilder(geom, 0.5); + cBuilder.setColor(QColor(255, 255, 255, 212)); + // build the 3 bouncing, spinning cubes + for (int i = 3; i > 0; --i) + cubes.append(cBuilder.newCube(QVector3D((float)(i-1), -1.5f, 5 - i))); + + // build the spinning cube which goes in the dynamic texture + cube = cBuilder.newCube(); + cube->removeBounce(); + + // build the background tiles + TileBuilder tBuilder(geom); + tBuilder.setColor(QColor(Qt::white)); + for (int c = -2; c <= +2; ++c) + for (int r = -2; r <= +2; ++r) + tiles.append(tBuilder.newTile(QVector3D(c, r, 0))); + + // graded backdrop for the pbuffer scene + TileBuilder bBuilder(geom, 0.0f, 2.0f); + bBuilder.setColor(QColor(102, 176, 54, 210)); + backdrop = bBuilder.newTile(QVector3D(0.0f, 0.0f, -1.5f)); + backdrop->setColors(colorArray); +} + +void GLWidget::initCommon() +{ + qglClearColor(QColor(Qt::darkGray)); + + glEnable(GL_DEPTH_TEST); + glEnable(GL_CULL_FACE); + glEnable(GL_MULTISAMPLE); + + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + glEnable(GL_BLEND); + + glEnable(GL_TEXTURE_2D); + + geom->loadArrays(); +} + +void GLWidget::perspectiveProjection() +{ + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); +#ifdef QT_OPENGL_ES + glFrustumf(-aspect, +aspect, -1.0, +1.0, 4.0, 15.0); +#else + glFrustum(-aspect, +aspect, -1.0, +1.0, 4.0, 15.0); +#endif + glMatrixMode(GL_MODELVIEW); +} + +void GLWidget::orthographicProjection() +{ + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); +#ifdef QT_OPENGL_ES + glOrthof(-1.0, +1.0, -1.0, +1.0, -90.0, +90.0); +#else + glOrtho(-1.0, +1.0, -1.0, +1.0, -90.0, +90.0); +#endif + glMatrixMode(GL_MODELVIEW); +} + +void GLWidget::resizeGL(int width, int height) +{ + glViewport(0, 0, width, height); + aspect = (qreal)width / (qreal)(height ? height : 1); + perspectiveProjection(); +} + +void GLWidget::drawPbuffer() +{ + orthographicProjection(); + + glClearColor(0.0f, 0.0f, 0.0f, 1.0f); + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glDisable(GL_TEXTURE_2D); + backdrop->draw(); + glEnable(GL_TEXTURE_2D); + + glBindTexture(GL_TEXTURE_2D, cubeTexture); + glDisable(GL_CULL_FACE); + cube->draw(); + glEnable(GL_CULL_FACE); + + glFlush(); +} + +void GLWidget::initPbuffer() +{ + pbuffer->makeCurrent(); + + cubeTexture = bindTexture(QImage(":res/cubelogo.png")); + + initCommon(); + + // generate a texture that has the same size/format as the pbuffer + dynamicTexture = pbuffer->generateDynamicTexture(); + + // bind the dynamic texture to the pbuffer - this is a no-op under X11 + hasDynamicTextureUpdate = pbuffer->bindToDynamicTexture(dynamicTexture); + makeCurrent(); +} + +void GLWidget::setAnimationPaused(bool enable) +{ + cube->setAnimationPaused(enable); + for (int i = 0; i < 3; ++i) + cubes[i]->setAnimationPaused(enable); +} diff --git a/examples/opengl/pbuffers/glwidget.h b/examples/opengl/pbuffers/glwidget.h new file mode 100644 index 0000000000..7a8244f4f9 --- /dev/null +++ b/examples/opengl/pbuffers/glwidget.h @@ -0,0 +1,89 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef GLWIDGET_H +#define GLWIDGET_H + +#include <QGLWidget> + +class Geometry; +class Cube; +class Tile; +QT_BEGIN_NAMESPACE +class QGLPixelBuffer; +QT_END_NAMESPACE + +class GLWidget : public QGLWidget +{ +public: + GLWidget(QWidget *parent = 0); + ~GLWidget(); + +protected: + void initializeGL(); + void paintGL(); + void resizeGL(int width, int height); + void mousePressEvent(QMouseEvent *) { setAnimationPaused(true); } + void mouseReleaseEvent(QMouseEvent *) { setAnimationPaused(false); } + +private: + void initializeGeometry(); + void initPbuffer(); + void initCommon(); + void perspectiveProjection(); + void orthographicProjection(); + void drawPbuffer(); + void setAnimationPaused(bool enable); + + qreal aspect; + GLuint dynamicTexture; + GLuint cubeTexture; + bool hasDynamicTextureUpdate; + QGLPixelBuffer *pbuffer; + Geometry *geom; + Cube *cube; + Tile *backdrop; + QList<Cube *> cubes; + QList<Tile *> tiles; + +}; +//! [3] + +#endif diff --git a/examples/opengl/pbuffers/main.cpp b/examples/opengl/pbuffers/main.cpp new file mode 100644 index 0000000000..b4f1512cfe --- /dev/null +++ b/examples/opengl/pbuffers/main.cpp @@ -0,0 +1,63 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui/QApplication> +#include <QtGui/QMessageBox> +#include <QtOpenGL/QGLPixelBuffer> + +#include "glwidget.h" + +int main(int argc, char **argv) +{ + Q_INIT_RESOURCE(pbuffers); + + QApplication a(argc, argv); + if (!QGLFormat::hasOpenGL() || !QGLPixelBuffer::hasOpenGLPbuffers()) { + QMessageBox::information(0, "OpenGL pbuffers", + "This system does not support OpenGL/pbuffers."); + return -1; + } + + GLWidget widget(0); + widget.resize(640, 480); + widget.show(); + return a.exec(); +} + diff --git a/examples/opengl/pbuffers/pbuffers.pro b/examples/opengl/pbuffers/pbuffers.pro new file mode 100644 index 0000000000..48797ab142 --- /dev/null +++ b/examples/opengl/pbuffers/pbuffers.pro @@ -0,0 +1,19 @@ +HEADERS += glwidget.h \ + cube.h +SOURCES += glwidget.cpp \ + main.cpp \ + cube.cpp +RESOURCES += pbuffers.qrc +QT += opengl + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/pbuffers +sources.files = $$SOURCES \ + $$HEADERS \ + $$RESOURCES \ + pbuffers.pro \ + *.png +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/pbuffers +INSTALLS += target \ + sources +symbian:include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) diff --git a/examples/opengl/pbuffers/pbuffers.qrc b/examples/opengl/pbuffers/pbuffers.qrc new file mode 100644 index 0000000000..9fc1a56a1a --- /dev/null +++ b/examples/opengl/pbuffers/pbuffers.qrc @@ -0,0 +1,5 @@ +<!DOCTYPE RCC><RCC version="1.0"> +<qresource prefix="/res"> + <file>cubelogo.png</file> +</qresource> +</RCC> diff --git a/examples/opengl/pbuffers2/bubbles.svg b/examples/opengl/pbuffers2/bubbles.svg new file mode 100644 index 0000000000..51730124a2 --- /dev/null +++ b/examples/opengl/pbuffers2/bubbles.svg @@ -0,0 +1,215 @@ +<?xml version="1.0" standalone="no"?> +<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd"> +<svg width="20cm" height="15cm" viewBox="0 0 800 600" + xmlns="http://www.w3.org/2000/svg" + xmlns:xlink="http://www.w3.org/1999/xlink/" + baseProfile="tiny" version="1.2"> + <title>Spheres</title> + <desc>Semi-transparent bubbles on a colored background.</desc> + <defs> + <!-- Create radial gradients for each bubble. --> + <radialGradient id="blueBubble" gradientUnits="userSpaceOnUse" + cx="0" cy="0" r="100" fx="-50" fy="-50"> + <stop offset="0%" stop-color="white" stop-opacity="1" /> + <stop offset="25%" stop-color="#cdcdff" stop-opacity=".65" /> + <stop offset="100%" stop-color="#cdaacd" stop-opacity=".75" /> + </radialGradient> + <radialGradient id="redBubble" gradientUnits="userSpaceOnUse" + cx="0" cy="0" r="100" fx="-50" fy="-50"> + <stop offset="0%" stop-color="white" stop-opacity="1" /> + <stop offset="25%" stop-color="#ffcdcd" stop-opacity=".65" /> + <stop offset="100%" stop-color="#bbbb99" stop-opacity=".75" /> + </radialGradient> + <radialGradient id="greenBubble" gradientUnits="userSpaceOnUse" + cx="0" cy="0" r="100" fx="-50" fy="-50"> + <stop offset="0%" stop-color="white" stop-opacity="1" /> + <stop offset="25%" stop-color="#cdffcd" stop-opacity=".65" /> + <stop offset="100%" stop-color="#99aaaa" stop-opacity=".75" /> + </radialGradient> + <radialGradient id="yellowBubble" gradientUnits="userSpaceOnUse" + cx="0" cy="0" r="100" fx="-50" fy="-50"> + <stop offset="0%" stop-color="white" stop-opacity="1" /> + <stop offset="25%" stop-color="#ffffcd" stop-opacity=".65" /> + <stop offset="100%" stop-color="#bbbbaa" stop-opacity=".75" /> + </radialGradient> + <radialGradient id="background" gradientUnits="userSpaceOnUse" + cx="0" cy="0" r="400" fx="250" fy="250"> + <stop offset="0%" stop-color="#ffffee" /> + <stop offset="100%" stop-color="#ccccaa" /> + </radialGradient> + <linearGradient id="surface" gradientUnits="userSpaceOnUse" + x1="-100" y1="200" x2="400" y2="200"> + <stop offset="0%" stop-color="#ffffcc" /> + <stop offset="100%" stop-color="#bbbb88" /> + </linearGradient> + + <!-- Create radial gradients for each circle to make them look like + spheres. --> + <radialGradient id="blueSphere" gradientUnits="userSpaceOnUse" + cx="0" cy="0" r="100" fx="-50" fy="-50"> + <stop offset="0%" stop-color="white" /> + <stop offset="75%" stop-color="blue" /> + <stop offset="100%" stop-color="#222244" /> + </radialGradient> + <radialGradient id="redSphere" gradientUnits="userSpaceOnUse" + cx="0" cy="0" r="100" fx="-50" fy="-50"> + <stop offset="0%" stop-color="white" /> + <stop offset="75%" stop-color="red" /> + <stop offset="100%" stop-color="#442222" /> + </radialGradient> + <radialGradient id="greenSphere" gradientUnits="userSpaceOnUse" + cx="0" cy="0" r="100" fx="-50" fy="-50"> + <stop offset="0%" stop-color="white" /> + <stop offset="75%" stop-color="green" /> + <stop offset="100%" stop-color="#113311" /> + </radialGradient> + <radialGradient id="yellowSphere" gradientUnits="userSpaceOnUse" + cx="0" cy="0" r="100" fx="-50" fy="-50"> + <stop offset="0%" stop-color="white" /> + <stop offset="75%" stop-color="yellow" /> + <stop offset="100%" stop-color="#444422" /> + </radialGradient> + <radialGradient id="shadowGrad" gradientUnits="userSpaceOnUse" + cx="0" cy="0" r="100" fx="-50" fy="50"> + <stop offset="0%" stop-color="black" stop-opacity="1.0" /> + <stop offset="100%" stop-color="black" stop-opacity="0.0" /> + </radialGradient> + + <!-- Define a shadow for each sphere. --> + <circle id="shadow" fill="url(#shadowGrad)" cx="0" cy="0" r="100" /> + <g id="bubble"> + <circle fill="black" cx="0" cy="0" r="50" /> + <circle fill="#a6ce39" cx="0" cy="0" r="33" /> + <path fill="black" d="M 37,50 L 50,37 L 12,-1 L 22,-11 L 10,-24 L -24,10 + L -11,22 L -1,12 Z" /> + <circle cx="0" cy="0" r="100" /> + </g> + </defs> + <g> + <rect fill="url(#background)" x="0" y="0" width="800" height="600" /> + </g> + + <g transform="translate(200,700)"> + <use xlink:href="#bubble" fill="url(#blueBubble)" /> + <animateTransform attributeName="transform" type="translate" additive="sum" + values="0,0; 0,-800" begin="1s" dur="10s" fill="freeze" repeatCount="indefinite" /> + </g> + <g transform="translate(315,700)"> + <g transform="scale(0.5,0.5)"> + <use xlink:href="#bubble" fill="url(#redBubble)" /> + </g> + <animateTransform attributeName="transform" type="translate" additive="sum" + values="0,0; 0,-800" begin="3s" dur="7s" fill="freeze" repeatCount="indefinite" /> + </g> + <g transform="translate(80,700)"> + <g transform="scale(0.65,0.65)"> + <use xlink:href="#bubble" fill="url(#greenBubble)" /> + </g> + <animateTransform attributeName="transform" type="translate" additive="sum" + values="0,0; 0,-800" begin="5s" dur="9s" fill="freeze" repeatCount="indefinite" /> + </g> + <g transform="translate(255,700)"> + <g transform="scale(0.3,0.3)"> + <use xlink:href="#bubble" fill="url(#yellowBubble)" /> + </g> + <animateTransform attributeName="transform" type="translate" additive="sum" + values="0,0; 0,-800" begin="2s" dur="6s" fill="freeze" repeatCount="indefinite" /> + </g> + <g transform="translate(565,700)"> + <g transform="scale(0.4,0.4)"> + <use xlink:href="#bubble" fill="url(#blueBubble)" /> + </g> + <animateTransform attributeName="transform" type="translate" additive="sum" + values="0,0; 0,-800" begin="4s" dur="8s" fill="freeze" repeatCount="indefinite" /> + </g> + <g transform="translate(715,700)"> + <g transform="scale(0.6,0.6)"> + <use xlink:href="#bubble" fill="url(#redBubble)" /> + </g> + <animateTransform attributeName="transform" type="translate" additive="sum" + values="0,0; 0,-800" begin="1s" dur="4s" fill="freeze" repeatCount="indefinite" /> + </g> + <g transform="translate(645,700)"> + <g transform="scale(0.375,0.375)"> + <use xlink:href="#bubble" fill="url(#greenBubble)" /> + </g> + <animateTransform attributeName="transform" type="translate" additive="sum" + values="0,0; 0,-800" begin="0s" dur="11s" fill="freeze" repeatCount="indefinite" /> + </g> + <g transform="translate(555,700)"> + <g transform="scale(0.9,0.9)"> + <use xlink:href="#bubble" fill="url(#yellowBubble)" /> + </g> + <animateTransform attributeName="transform" type="translate" additive="sum" + values="0,0; 0,-800" begin="3s" dur="7.5s" fill="freeze" repeatCount="indefinite" /> + </g> + + <g transform="translate(360,700)"> + <g transform="scale(0.5,0.5)"> + <use xlink:href="#bubble" fill="url(#blueBubble)" /> + </g> + <animateTransform attributeName="transform" type="translate" additive="sum" + values="0,0; 0,-800" begin="3s" dur="6s" fill="freeze" repeatCount="indefinite" /> + </g> + <g transform="translate(215,700)"> + <g transform="scale(0.45,0.45)"> + <use xlink:href="#bubble" fill="url(#redBubble)" /> + </g> + <animateTransform attributeName="transform" type="translate" additive="sum" + values="0,0; 0,-800" begin="5.5s" dur="7s" fill="freeze" repeatCount="indefinite" /> + </g> + <g transform="translate(420,700)"> + <g transform="scale(0.75,0.75)"> + <use xlink:href="#bubble" fill="url(#greenBubble)" /> + </g> + <animateTransform attributeName="transform" type="translate" additive="sum" + values="0,0; 0,-800" begin="1s" dur="9s" fill="freeze" repeatCount="indefinite" /> + </g> + <g transform="translate(815,700)"> + <g transform="scale(0.6,0.6)"> + <use xlink:href="#bubble" fill="url(#yellowBubble)" /> + </g> + <animateTransform attributeName="transform" type="translate" additive="sum" + values="0,0; 0,-800" begin="2s" dur="9.5s" fill="freeze" repeatCount="indefinite" /> + </g> + + <g transform="translate(225,375)" > + <g transform="scale(1.0,0.5)" > + <path d="M 0 0 L 350 0 L 450 450 L -100 450 z" + fill="url(#surface)" stroke="none" /> + </g> + </g> + <g transform="translate(200,0)" > + <g transform="translate(200,490) scale(2.0,1.0) rotate(45)" > + <rect fill="#a6ce39" x="-69" y="-69" width="138" height="138" /> + <circle fill="black" cx="0" cy="0" r="50" /> + <circle fill="#a6ce39" cx="0" cy="0" r="33" /> + <path fill="black" d="M 37,50 L 50,37 L 12,-1 L 22,-11 L 10,-24 L -24,10 + L -11,22 L -1,12 Z" /> + <animateTransform attributeName="transform" type="rotate" additive="sum" values="0; 360" + begin="0s" dur="10s" fill="freeze" repeatCount="indefinite" /> + </g> + <g transform="translate(200,375)"> + <use xlink:href="#shadow" transform="translate(25,55) scale(1.0,0.5)" /> + <circle fill="url(#blueSphere)" cx="0" cy="0" r="100" /> + </g> + <g transform="translate(315,440)"> + <g transform="scale(0.5,0.5)"> + <use xlink:href="#shadow" transform="translate(25,55) scale(1.0,0.5)" /> + <circle fill="url(#redSphere)" cx="0" cy="0" r="100" /> + </g> + </g> + <g transform="translate(80,475)"> + <g transform="scale(0.65,0.65)"> + <use xlink:href="#shadow" transform="translate(25,55) scale(1.0,0.5)" /> + <circle fill="url(#greenSphere)" cx="0" cy="0" r="100" /> + </g> + </g> + <g transform="translate(255,525)"> + <g transform="scale(0.3,0.3)"> + <use xlink:href="#shadow" transform="translate(25,55) scale(1.0,0.5)" /> + <circle fill="url(#yellowSphere)" cx="0" cy="0" r="100" /> + </g> + </g> + </g> +</svg> diff --git a/examples/opengl/pbuffers2/designer.png b/examples/opengl/pbuffers2/designer.png Binary files differnew file mode 100644 index 0000000000..4f32d57496 --- /dev/null +++ b/examples/opengl/pbuffers2/designer.png diff --git a/examples/opengl/pbuffers2/glwidget.cpp b/examples/opengl/pbuffers2/glwidget.cpp new file mode 100644 index 0000000000..53b1c5f95b --- /dev/null +++ b/examples/opengl/pbuffers2/glwidget.cpp @@ -0,0 +1,327 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui/QImage> +#include "glwidget.h" + +#include <math.h> + +#ifndef GL_MULTISAMPLE +#define GL_MULTISAMPLE 0x809D +#endif + +GLWidget::GLWidget(QWidget *parent) + : QGLWidget(QGLFormat(QGL::SampleBuffers), parent) +{ + setWindowTitle(tr("OpenGL pbuffers 2")); + + pbuffer = new QGLPixelBuffer(1024, 1024, format(), this); + + rot_x = rot_y = rot_z = 0.0f; + scale = 0.1f; + anim = new QTimeLine(750, this); + anim->setUpdateInterval(20); + connect(anim, SIGNAL(valueChanged(qreal)), SLOT(animate(qreal))); + connect(anim, SIGNAL(finished()), SLOT(animFinished())); + + svg_renderer = new QSvgRenderer(QLatin1String(":/res/bubbles.svg"), this); + connect(svg_renderer, SIGNAL(repaintNeeded()), this, SLOT(draw())); + + logo = QImage(":/res/designer.png"); + logo = logo.convertToFormat(QImage::Format_ARGB32); + + makeCurrent(); // need a current context to create the display list + tile_list = glGenLists(1); + glNewList(tile_list, GL_COMPILE); + glBegin(GL_QUADS); + { + glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f); + glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f); + glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f); + glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f); + + glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f); + glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f); + glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f); + glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f); + + glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f); + glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, 1.0f, 1.0f); + glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, 1.0f, 1.0f); + glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f); + + glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f); + glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f); + glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f); + glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f); + + glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f); + glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f); + glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f); + glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f); + + glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f); + glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f); + glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f); + glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f); +} + glEnd(); + glEndList(); + + wave = new GLfloat[logo.width()*logo.height()]; + memset(wave, 0, logo.width()*logo.height()); + startTimer(30); // wave timer + + pbuffer->makeCurrent(); + dynamicTexture = pbuffer->generateDynamicTexture(); + + // bind the dynamic texture to the pbuffer - this is a no-op under X11 + hasDynamicTextureUpdate = pbuffer->bindToDynamicTexture(dynamicTexture); +} + +GLWidget::~GLWidget() +{ + delete[] wave; + glDeleteLists(tile_list, 1); + pbuffer->releaseFromDynamicTexture(); + glDeleteTextures(1, &dynamicTexture); + delete pbuffer; +} + +void GLWidget::paintEvent(QPaintEvent *) +{ + draw(); +} + +void GLWidget::draw() +{ + QPainter p(this); // used for text overlay + + // save the GL state set for QPainter + p.beginNativePainting(); + saveGLState(); + + // render the 'bubbles.svg' file into our pbuffer + QPainter pbuffer_painter(pbuffer); + svg_renderer->render(&pbuffer_painter); + pbuffer_painter.end(); + glFlush(); + + // rendering directly to a texture is not supported on X11 and + // some Windows implementations, unfortunately + if (!hasDynamicTextureUpdate) + pbuffer->updateDynamicTexture(dynamicTexture); + + makeCurrent(); + // draw into the GL widget + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glFrustum(-1, 1, -1, 1, 10, 100); + glTranslatef(0.0f, 0.0f, -15.0f); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glViewport(0, 0, width(), height()); + + glBindTexture(GL_TEXTURE_2D, dynamicTexture); + glEnable(GL_TEXTURE_2D); + glEnable(GL_MULTISAMPLE); + glEnable(GL_CULL_FACE); + glEnable(GL_BLEND); + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + + // draw background + glPushMatrix(); + glScalef(1.7f, 1.7f, 1.7f); + glColor4f(1.0f, 1.0f, 1.0f, 1.0f); + glCallList(tile_list); + glPopMatrix(); + + const int w = logo.width(); + const int h = logo.height(); + + glRotatef(rot_x, 1.0f, 0.0f, 0.0f); + glRotatef(rot_y, 0.0f, 1.0f, 0.0f); + glRotatef(rot_z, 0.0f, 0.0f, 1.0f); + glScalef(scale/w, scale/w, scale/w); + + glDepthFunc(GL_LESS); + glEnable(GL_DEPTH_TEST); + + // draw the Qt icon + glTranslatef(-w+1, -h+1, 0.0f); + for (int y=h-1; y>=0; --y) { + uint *p = (uint*) logo.scanLine(y); + uint *end = p + w; + int x = 0; + while (p < end) { + glColor4ub(qRed(*p), qGreen(*p), qBlue(*p), uchar(qAlpha(*p)*.9)); + glTranslatef(0.0f, 0.0f, wave[y*w+x]); + if (qAlpha(*p) > 128) + glCallList(tile_list); + glTranslatef(0.0f, 0.0f, -wave[y*w+x]); + glTranslatef(2.0f, 0.0f, 0.0f); + ++x; + ++p; + } + glTranslatef(-w*2.0f, 2.0f, 0.0f); + } + + // restore the GL state that QPainter expects + restoreGLState(); + p.endNativePainting(); + + // draw the overlayed text using QPainter + p.setPen(QColor(197, 197, 197, 157)); + p.setBrush(QColor(197, 197, 197, 127)); + p.drawRect(QRect(0, 0, width(), 50)); + p.setPen(Qt::black); + p.setBrush(Qt::NoBrush); + const QString str1(tr("A simple OpenGL pbuffer example.")); + const QString str2(tr("Use the mouse wheel to zoom, press buttons and move mouse to rotate, double-click to flip.")); + QFontMetrics fm(p.font()); + p.drawText(width()/2 - fm.width(str1)/2, 20, str1); + p.drawText(width()/2 - fm.width(str2)/2, 20 + fm.lineSpacing(), str2); +} + +void GLWidget::mousePressEvent(QMouseEvent *e) +{ + anchor = e->pos(); +} + +void GLWidget::mouseMoveEvent(QMouseEvent *e) +{ + QPoint diff = e->pos() - anchor; + if (e->buttons() & Qt::LeftButton) { + rot_x += diff.y()/5.0f; + rot_y += diff.x()/5.0f; + } else if (e->buttons() & Qt::RightButton) { + rot_z += diff.x()/5.0f; + } + + anchor = e->pos(); + draw(); +} + +void GLWidget::wheelEvent(QWheelEvent *e) +{ + e->delta() > 0 ? scale += scale*0.1f : scale -= scale*0.1f; + draw(); +} + +void GLWidget::mouseDoubleClickEvent(QMouseEvent *) +{ + anim->start(); +} + +void GLWidget::animate(qreal val) +{ + rot_y = val * 180; + draw(); +} + +void GLWidget::animFinished() +{ + if (anim->direction() == QTimeLine::Forward) + anim->setDirection(QTimeLine::Backward); + else + anim->setDirection(QTimeLine::Forward); +} + +void GLWidget::saveGLState() +{ + glPushAttrib(GL_ALL_ATTRIB_BITS); + glMatrixMode(GL_PROJECTION); + glPushMatrix(); + glMatrixMode(GL_MODELVIEW); + glPushMatrix(); +} + +void GLWidget::restoreGLState() +{ + glMatrixMode(GL_PROJECTION); + glPopMatrix(); + glMatrixMode(GL_MODELVIEW); + glPopMatrix(); + glPopAttrib(); +} + +#define PI 3.14159 + +void GLWidget::timerEvent(QTimerEvent *) +{ + if (QApplication::mouseButtons() != 0) + return; + + static bool scale_in = true; + + if (scale_in && scale > 35.0f) + scale_in = false; + else if (!scale_in && scale < .5f) + scale_in = true; + + scale = scale_in ? scale + scale*0.01f : scale-scale*0.01f; + rot_z += 0.3f; + rot_x += 0.1f; + + int dx, dy; // disturbance point + float s, v, W, t; + int i, j; + static float wt[128][128]; + const int width = logo.width(); + const int AMP = 5; + + dx = dy = width >> 1; + + W = .3f; + v = -4; // wave speed + + for (i = 0; i < width; ++i) { + for ( j = 0; j < width; ++j) { + s = sqrt((double) ((j - dx) * (j - dx) + (i - dy) * (i - dy))); + wt[i][j] += 0.1f; + t = s / v; + if (s != 0) + wave[i*width + j] = AMP * sin(2 * PI * W * (wt[i][j] + t)) / (0.2*(s + 2)); + else + wave[i*width + j] = AMP * sin(2 * PI * W * (wt[i][j] + t)); + } + } +} diff --git a/examples/opengl/pbuffers2/glwidget.h b/examples/opengl/pbuffers2/glwidget.h new file mode 100644 index 0000000000..515d5b44fc --- /dev/null +++ b/examples/opengl/pbuffers2/glwidget.h @@ -0,0 +1,84 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtOpenGL> +#include <QImage> +#include <QTimeLine> +#include <QSvgRenderer> + +class GLWidget : public QGLWidget +{ + Q_OBJECT + +public: + GLWidget(QWidget *parent); + ~GLWidget(); + + void saveGLState(); + void restoreGLState(); + + void paintEvent(QPaintEvent *); + void mousePressEvent(QMouseEvent *); + void mouseDoubleClickEvent(QMouseEvent *); + void mouseMoveEvent(QMouseEvent *); + void timerEvent(QTimerEvent *); + void wheelEvent(QWheelEvent *); + +public slots: + void animate(qreal); + void animFinished(); + void draw(); + +private: + QPoint anchor; + float scale; + float rot_x, rot_y, rot_z; + GLuint tile_list; + GLfloat *wave; + bool hasDynamicTextureUpdate; + + QImage logo; + QTimeLine *anim; + QSvgRenderer *svg_renderer; + + GLuint dynamicTexture; + QGLPixelBuffer *pbuffer; +}; + diff --git a/examples/opengl/pbuffers2/main.cpp b/examples/opengl/pbuffers2/main.cpp new file mode 100644 index 0000000000..0abe0b9faa --- /dev/null +++ b/examples/opengl/pbuffers2/main.cpp @@ -0,0 +1,61 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui/QApplication> +#include <QtGui/QMessageBox> +#include "glwidget.h" + +int main(int argc, char **argv) +{ + Q_INIT_RESOURCE(pbuffers2); + + QApplication a(argc, argv); + if (!QGLFormat::hasOpenGL() || !QGLPixelBuffer::hasOpenGLPbuffers()) { + QMessageBox::information(0, "OpenGL pbuffers 2", + "This system does not support OpenGL/pbuffers."); + return -1; + } + + GLWidget widget(0); + widget.resize(640, 480); + widget.show(); + return a.exec(); +} + diff --git a/examples/opengl/pbuffers2/pbuffers2.pro b/examples/opengl/pbuffers2/pbuffers2.pro new file mode 100644 index 0000000000..ea1f6bd293 --- /dev/null +++ b/examples/opengl/pbuffers2/pbuffers2.pro @@ -0,0 +1,23 @@ +###################################################################### +# Automatically generated by qmake (2.01a) Fri May 12 17:15:46 2006 +###################################################################### + +TEMPLATE = app +TARGET = +DEPENDPATH += . +INCLUDEPATH += . + +QT += opengl svg + +# Input +HEADERS += glwidget.h +SOURCES += glwidget.cpp main.cpp +RESOURCES += pbuffers2.qrc + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/pbuffers2 +sources.files = $$SOURCES $$HEADERS $$RESOURCES pbuffers2.pro *.png *.svg +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/pbuffers2 +INSTALLS += target sources + +symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) diff --git a/examples/opengl/pbuffers2/pbuffers2.qrc b/examples/opengl/pbuffers2/pbuffers2.qrc new file mode 100644 index 0000000000..986f1ca385 --- /dev/null +++ b/examples/opengl/pbuffers2/pbuffers2.qrc @@ -0,0 +1,6 @@ +<!DOCTYPE RCC><RCC version="1.0"> +<qresource prefix="/res"> + <file>bubbles.svg</file> + <file>designer.png</file> +</qresource> +</RCC> diff --git a/examples/opengl/samplebuffers/glwidget.cpp b/examples/opengl/samplebuffers/glwidget.cpp new file mode 100644 index 0000000000..537dbd9bba --- /dev/null +++ b/examples/opengl/samplebuffers/glwidget.cpp @@ -0,0 +1,164 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "glwidget.h" +#include <math.h> + +#ifndef GL_MULTISAMPLE +#define GL_MULTISAMPLE 0x809D +#endif + +GLWidget::GLWidget(QWidget *parent) + : QGLWidget(QGLFormat(QGL::SampleBuffers), parent) +{ + startTimer(40); + setWindowTitle(tr("Sample Buffers")); +} + +void GLWidget::initializeGL() +{ + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-.5, .5, .5, -.5, -1000, 1000); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glClearColor(1.0f, 1.0f, 1.0f, 1.0f); + + makeObject(); +} + +void GLWidget::resizeGL(int w, int h) +{ + glViewport(0, 0, w, h); +} + +void GLWidget::paintGL() +{ + static float rot = 0.0; + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glMatrixMode(GL_MODELVIEW); + glPushMatrix(); + glEnable(GL_MULTISAMPLE); + glTranslatef(-0.25f, -0.10f, 0.0f); + glScalef(0.75f, 1.15f, 0.0f); + glRotatef(rot, 0.0f, 0.f, 1.0f); + glCallList(list); + glPopMatrix(); + + glPushMatrix(); + glDisable(GL_MULTISAMPLE); + glTranslatef(0.25f, -0.10f, 0.0f); + glScalef(0.75f, 1.15f, 0.0f); + glRotatef(rot, 0.0f, 0.0f, 1.0f); + glCallList(list); + glPopMatrix(); + + rot += 0.2f; + + qglColor(Qt::black); + renderText(-0.35, 0.4, 0.0, "Multisampling enabled"); + renderText(0.15, 0.4, 0.0, "Multisampling disabled"); +} + +void GLWidget::timerEvent(QTimerEvent *) +{ + update(); +} + +void GLWidget::makeObject() +{ + QColor qtGreen(QColor::fromCmykF(0.40, 0.0, 1.0, 0.0)); + const double Pi = 3.14159265358979323846; + const int NumSectors = 15; + GLdouble x1 = +0.06; + GLdouble y1 = -0.14; + GLdouble x2 = +0.14; + GLdouble y2 = -0.06; + GLdouble x3 = +0.08; + GLdouble y3 = +0.00; + GLdouble x4 = +0.30; + GLdouble y4 = +0.22; + + list = glGenLists(1); + glNewList(list, GL_COMPILE); + { + for (int i = 0; i < NumSectors; ++i) { + double angle1 = (i * 2 * Pi) / NumSectors; + GLdouble x5 = 0.30 * sin(angle1); + GLdouble y5 = 0.30 * cos(angle1); + GLdouble x6 = 0.20 * sin(angle1); + GLdouble y6 = 0.20 * cos(angle1); + + double angle2 = ((i + 1) * 2 * Pi) / NumSectors; + GLdouble x7 = 0.20 * sin(angle2); + GLdouble y7 = 0.20 * cos(angle2); + GLdouble x8 = 0.30 * sin(angle2); + GLdouble y8 = 0.30 * cos(angle2); + + qglColor(qtGreen); + quad(GL_QUADS, x5, y5, x6, y6, x7, y7, x8, y8); + qglColor(Qt::black); + quad(GL_LINE_LOOP, x5, y5, x6, y6, x7, y7, x8, y8); + } + + qglColor(qtGreen); + quad(GL_QUADS, x1, y1, x2, y2, y2, x2, y1, x1); + quad(GL_QUADS, x3, y3, x4, y4, y4, x4, y3, x3); + + qglColor(Qt::black); + quad(GL_LINE_LOOP, x1, y1, x2, y2, y2, x2, y1, x1); + quad(GL_LINE_LOOP, x3, y3, x4, y4, y4, x4, y3, x3); + } + glEndList(); +} + +void GLWidget::quad(GLenum primitive, GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2, + GLdouble x3, GLdouble y3, GLdouble x4, GLdouble y4) +{ + glBegin(primitive); + { + glVertex2d(x1, y1); + glVertex2d(x2, y2); + glVertex2d(x3, y3); + glVertex2d(x4, y4); + } + glEnd(); +} diff --git a/examples/opengl/samplebuffers/glwidget.h b/examples/opengl/samplebuffers/glwidget.h new file mode 100644 index 0000000000..1d9b7b54a1 --- /dev/null +++ b/examples/opengl/samplebuffers/glwidget.h @@ -0,0 +1,61 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtOpenGL> + +class GLWidget : public QGLWidget +{ +public: + GLWidget(QWidget *parent); + +protected: + void initializeGL(); + void resizeGL(int w, int h); + void paintGL(); + void timerEvent(QTimerEvent *); + + void makeObject(); + void quad(GLenum primitive, GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2, + GLdouble x3, GLdouble y3, GLdouble x4, GLdouble y4); + +private: + GLuint list; +}; + diff --git a/examples/opengl/samplebuffers/main.cpp b/examples/opengl/samplebuffers/main.cpp new file mode 100644 index 0000000000..8d4df924dd --- /dev/null +++ b/examples/opengl/samplebuffers/main.cpp @@ -0,0 +1,71 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui/QApplication> +#include <QtGui/QMessageBox> +#include "glwidget.h" + +int main(int argc, char **argv) +{ + QApplication a(argc, argv); + + QGLFormat f = QGLFormat::defaultFormat(); + f.setSampleBuffers(true); + QGLFormat::setDefaultFormat(f); + if (!QGLFormat::hasOpenGL()) { + QMessageBox::information(0, "OpenGL samplebuffers", + "This system does not support OpenGL."); + return 0; + } + + GLWidget widget(0); + + if (!widget.format().sampleBuffers()) { + QMessageBox::information(0, "OpenGL samplebuffers", + "This system does not have sample buffer support."); + return 0; + } + + widget.resize(640, 480); + widget.show(); + + return a.exec(); +} + diff --git a/examples/opengl/samplebuffers/samplebuffers.pro b/examples/opengl/samplebuffers/samplebuffers.pro new file mode 100644 index 0000000000..c284318524 --- /dev/null +++ b/examples/opengl/samplebuffers/samplebuffers.pro @@ -0,0 +1,12 @@ +HEADERS += glwidget.h +SOURCES += glwidget.cpp main.cpp + +QT += opengl + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/samplebuffers +sources.files = $$SOURCES $$HEADERS samplebuffers.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/samplebuffers +INSTALLS += target sources + +symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) diff --git a/examples/opengl/shared/qtlogo.cpp b/examples/opengl/shared/qtlogo.cpp new file mode 100644 index 0000000000..93b92809e0 --- /dev/null +++ b/examples/opengl/shared/qtlogo.cpp @@ -0,0 +1,411 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QGLWidget> +#include <QMatrix4x4> +#include <QVector3D> + +#include <qmath.h> + +#include "qtlogo.h" + +static const qreal tee_height = 0.311126; +static const qreal cross_width = 0.25; +static const qreal bar_thickness = 0.113137; +static const qreal inside_diam = 0.20; +static const qreal outside_diam = 0.30; +static const qreal logo_depth = 0.10; +static const int num_divisions = 32; + +//! [0] +struct Geometry +{ + QVector<GLushort> faces; + QVector<QVector3D> vertices; + QVector<QVector3D> normals; + void appendSmooth(const QVector3D &a, const QVector3D &n, int from); + void appendFaceted(const QVector3D &a, const QVector3D &n); + void finalize(); + void loadArrays() const; +}; +//! [0] + +//! [1] +class Patch +{ +public: + enum Smoothing { Faceted, Smooth }; + Patch(Geometry *); + void setSmoothing(Smoothing s) { sm = s; } + void translate(const QVector3D &t); + void rotate(qreal deg, QVector3D axis); + void draw() const; + void addTri(const QVector3D &a, const QVector3D &b, const QVector3D &c, const QVector3D &n); + void addQuad(const QVector3D &a, const QVector3D &b, const QVector3D &c, const QVector3D &d); + + GLushort start; + GLushort count; + GLushort initv; + + GLfloat faceColor[4]; + QMatrix4x4 mat; + Smoothing sm; + Geometry *geom; +}; +//! [1] + +static inline void qSetColor(float colorVec[], QColor c) +{ + colorVec[0] = c.redF(); + colorVec[1] = c.greenF(); + colorVec[2] = c.blueF(); + colorVec[3] = c.alphaF(); +} + +void Geometry::loadArrays() const +{ + glVertexPointer(3, GL_FLOAT, 0, vertices.constData()); + glNormalPointer(GL_FLOAT, 0, normals.constData()); +} + +void Geometry::finalize() +{ + // TODO: add vertex buffer uploading here + + // Finish smoothing normals by ensuring accumulated normals are returned + // to length 1.0. + for (int i = 0; i < normals.count(); ++i) + normals[i].normalize(); +} + +void Geometry::appendSmooth(const QVector3D &a, const QVector3D &n, int from) +{ + // Smooth normals are acheived by averaging the normals for faces meeting + // at a point. First find the point in geometry already generated + // (working backwards, since most often the points shared are between faces + // recently added). + int v = vertices.count() - 1; + for ( ; v >= from; --v) + if (qFuzzyCompare(vertices[v], a)) + break; + if (v < from) + { + // The vert was not found so add it as a new one, and initialize + // its corresponding normal + v = vertices.count(); + vertices.append(a); + normals.append(n); + } + else + { + // Vert found, accumulate normals into corresponding normal slot. + // Must call finalize once finished accumulating normals + normals[v] += n; + } + // In both cases (found or not) reference the vert via its index + faces.append(v); +} + +void Geometry::appendFaceted(const QVector3D &a, const QVector3D &n) +{ + // Faceted normals are achieved by duplicating the vert for every + // normal, so that faces meeting at a vert get a sharp edge. + int v = vertices.count(); + vertices.append(a); + normals.append(n); + faces.append(v); +} + +Patch::Patch(Geometry *g) + : start(g->faces.count()) + , count(0) + , initv(g->vertices.count()) + , sm(Patch::Smooth) + , geom(g) +{ + qSetColor(faceColor, QColor(Qt::darkGray)); +} + +void Patch::rotate(qreal deg, QVector3D axis) +{ + mat.rotate(deg, axis); +} + +void Patch::translate(const QVector3D &t) +{ + mat.translate(t); +} + +static inline void qMultMatrix(const QMatrix4x4 &mat) +{ + if (sizeof(qreal) == sizeof(GLfloat)) + glMultMatrixf((GLfloat*)mat.constData()); +#ifndef QT_OPENGL_ES + else if (sizeof(qreal) == sizeof(GLdouble)) + glMultMatrixd((GLdouble*)mat.constData()); +#endif + else + { + GLfloat fmat[16]; + qreal const *r = mat.constData(); + for (int i = 0; i < 16; ++i) + fmat[i] = r[i]; + glMultMatrixf(fmat); + } +} + +//! [2] +void Patch::draw() const +{ + glPushMatrix(); + qMultMatrix(mat); + glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, faceColor); + + const GLushort *indices = geom->faces.constData(); + glDrawElements(GL_TRIANGLES, count, GL_UNSIGNED_SHORT, indices + start); + glPopMatrix(); +} +//! [2] + +void Patch::addTri(const QVector3D &a, const QVector3D &b, const QVector3D &c, const QVector3D &n) +{ + QVector3D norm = n.isNull() ? QVector3D::normal(a, b, c) : n; + if (sm == Smooth) + { + geom->appendSmooth(a, norm, initv); + geom->appendSmooth(b, norm, initv); + geom->appendSmooth(c, norm, initv); + } + else + { + geom->appendFaceted(a, norm); + geom->appendFaceted(b, norm); + geom->appendFaceted(c, norm); + } + count += 3; +} + +void Patch::addQuad(const QVector3D &a, const QVector3D &b, const QVector3D &c, const QVector3D &d) +{ + QVector3D norm = QVector3D::normal(a, b, c); + if (sm == Smooth) + { + addTri(a, b, c, norm); + addTri(a, c, d, norm); + } + else + { + // If faceted share the two common verts + addTri(a, b, c, norm); + int k = geom->vertices.count(); + geom->appendSmooth(a, norm, k); + geom->appendSmooth(c, norm, k); + geom->appendFaceted(d, norm); + count += 3; + } +} + +static inline QVector<QVector3D> extrude(const QVector<QVector3D> &verts, qreal depth) +{ + QVector<QVector3D> extr = verts; + for (int v = 0; v < extr.count(); ++v) + extr[v].setZ(extr[v].z() - depth); + return extr; +} + +class Rectoid +{ +public: + void translate(const QVector3D &t) + { + for (int i = 0; i < parts.count(); ++i) + parts[i]->translate(t); + } + void rotate(qreal deg, QVector3D axis) + { + for (int i = 0; i < parts.count(); ++i) + parts[i]->rotate(deg, axis); + } + + // No special Rectoid destructor - the parts are fetched out of this member + // variable, and destroyed by the new owner + QList<Patch*> parts; +}; + +class RectPrism : public Rectoid +{ +public: + RectPrism(Geometry *g, qreal width, qreal height, qreal depth); +}; + +RectPrism::RectPrism(Geometry *g, qreal width, qreal height, qreal depth) +{ + enum { bl, br, tr, tl }; + Patch *fb = new Patch(g); + fb->setSmoothing(Patch::Faceted); + + // front face + QVector<QVector3D> r(4); + r[br].setX(width); + r[tr].setX(width); + r[tr].setY(height); + r[tl].setY(height); + QVector3D adjToCenter(-width / 2.0, -height / 2.0, depth / 2.0); + for (int i = 0; i < 4; ++i) + r[i] += adjToCenter; + fb->addQuad(r[bl], r[br], r[tr], r[tl]); + + // back face + QVector<QVector3D> s = extrude(r, depth); + fb->addQuad(s[tl], s[tr], s[br], s[bl]); + + // side faces + Patch *sides = new Patch(g); + sides->setSmoothing(Patch::Faceted); + sides->addQuad(s[bl], s[br], r[br], r[bl]); + sides->addQuad(s[br], s[tr], r[tr], r[br]); + sides->addQuad(s[tr], s[tl], r[tl], r[tr]); + sides->addQuad(s[tl], s[bl], r[bl], r[tl]); + + parts << fb << sides; +} + +class RectTorus : public Rectoid +{ +public: + RectTorus(Geometry *g, qreal iRad, qreal oRad, qreal depth, int numSectors); +}; + +RectTorus::RectTorus(Geometry *g, qreal iRad, qreal oRad, qreal depth, int k) +{ + QVector<QVector3D> inside; + QVector<QVector3D> outside; + for (int i = 0; i < k; ++i) { + qreal angle = (i * 2 * M_PI) / k; + inside << QVector3D(iRad * qSin(angle), iRad * qCos(angle), depth / 2.0); + outside << QVector3D(oRad * qSin(angle), oRad * qCos(angle), depth / 2.0); + } + inside << QVector3D(0.0, iRad, 0.0); + outside << QVector3D(0.0, oRad, 0.0); + QVector<QVector3D> in_back = extrude(inside, depth); + QVector<QVector3D> out_back = extrude(outside, depth); + + // Create front, back and sides as separate patches so that smooth normals + // are generated for the curving sides, but a faceted edge is created between + // sides and front/back + Patch *front = new Patch(g); + for (int i = 0; i < k; ++i) + front->addQuad(outside[i], inside[i], + inside[(i + 1) % k], outside[(i + 1) % k]); + Patch *back = new Patch(g); + for (int i = 0; i < k; ++i) + back->addQuad(in_back[i], out_back[i], + out_back[(i + 1) % k], in_back[(i + 1) % k]); + Patch *is = new Patch(g); + for (int i = 0; i < k; ++i) + is->addQuad(in_back[i], in_back[(i + 1) % k], + inside[(i + 1) % k], inside[i]); + Patch *os = new Patch(g); + for (int i = 0; i < k; ++i) + os->addQuad(out_back[(i + 1) % k], out_back[i], + outside[i], outside[(i + 1) % k]); + parts << front << back << is << os; +} + +QtLogo::QtLogo(QObject *parent, int divisions, qreal scale) + : QObject(parent) + , geom(new Geometry()) +{ + buildGeometry(divisions, scale); +} + +QtLogo::~QtLogo() +{ + qDeleteAll(parts); + delete geom; +} + +void QtLogo::setColor(QColor c) +{ + for (int i = 0; i < parts.count(); ++i) + qSetColor(parts[i]->faceColor, c); +} + +//! [3] +void QtLogo::buildGeometry(int divisions, qreal scale) +{ + qreal cw = cross_width * scale; + qreal bt = bar_thickness * scale; + qreal ld = logo_depth * scale; + qreal th = tee_height *scale; + + RectPrism cross(geom, cw, bt, ld); + RectPrism stem(geom, bt, th, ld); + + QVector3D z(0.0, 0.0, 1.0); + cross.rotate(45.0, z); + stem.rotate(45.0, z); + + qreal stem_downshift = (th + bt) / 2.0; + stem.translate(QVector3D(0.0, -stem_downshift, 0.0)); + + RectTorus body(geom, 0.20, 0.30, 0.1, divisions); + + parts << stem.parts << cross.parts << body.parts; + + geom->finalize(); +} +//! [3] + +//! [4] +void QtLogo::draw() const +{ + geom->loadArrays(); + + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_NORMAL_ARRAY); + + for (int i = 0; i < parts.count(); ++i) + parts[i]->draw(); + + glDisableClientState(GL_VERTEX_ARRAY); + glDisableClientState(GL_NORMAL_ARRAY); +} +//! [4] diff --git a/examples/opengl/shared/qtlogo.h b/examples/opengl/shared/qtlogo.h new file mode 100644 index 0000000000..4c16ec1c4e --- /dev/null +++ b/examples/opengl/shared/qtlogo.h @@ -0,0 +1,66 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QTLOGO_H +#define QTLOGO_H + +#include <QObject> +#include <QColor> + +class Patch; +struct Geometry; + +//! [0] +class QtLogo : public QObject +{ +public: + QtLogo(QObject *parent, int d = 64, qreal s = 1.0); + ~QtLogo(); + void setColor(QColor c); + void draw() const; +private: + void buildGeometry(int d, qreal s); + + QList<Patch *> parts; + Geometry *geom; +}; +//! [0] + +#endif // QTLOGO_H diff --git a/examples/opengl/textures/glwidget.cpp b/examples/opengl/textures/glwidget.cpp new file mode 100644 index 0000000000..b5374c0200 --- /dev/null +++ b/examples/opengl/textures/glwidget.cpp @@ -0,0 +1,245 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> +#include <QtOpenGL> + +#include "glwidget.h" + +GLWidget::GLWidget(QWidget *parent, QGLWidget *shareWidget) + : QGLWidget(parent, shareWidget) +{ + clearColor = Qt::black; + xRot = 0; + yRot = 0; + zRot = 0; +#ifdef QT_OPENGL_ES_2 + program = 0; +#endif +} + +GLWidget::~GLWidget() +{ +} + +QSize GLWidget::minimumSizeHint() const +{ + return QSize(50, 50); +} + +QSize GLWidget::sizeHint() const +{ + return QSize(200, 200); +} + +void GLWidget::rotateBy(int xAngle, int yAngle, int zAngle) +{ + xRot += xAngle; + yRot += yAngle; + zRot += zAngle; + updateGL(); +} + +void GLWidget::setClearColor(const QColor &color) +{ + clearColor = color; + updateGL(); +} + +void GLWidget::initializeGL() +{ + makeObject(); + + glEnable(GL_DEPTH_TEST); + glEnable(GL_CULL_FACE); +#ifndef QT_OPENGL_ES_2 + glEnable(GL_TEXTURE_2D); +#endif + +#ifdef QT_OPENGL_ES_2 + +#define PROGRAM_VERTEX_ATTRIBUTE 0 +#define PROGRAM_TEXCOORD_ATTRIBUTE 1 + + QGLShader *vshader = new QGLShader(QGLShader::Vertex, this); + const char *vsrc = + "attribute highp vec4 vertex;\n" + "attribute mediump vec4 texCoord;\n" + "varying mediump vec4 texc;\n" + "uniform mediump mat4 matrix;\n" + "void main(void)\n" + "{\n" + " gl_Position = matrix * vertex;\n" + " texc = texCoord;\n" + "}\n"; + vshader->compileSourceCode(vsrc); + + QGLShader *fshader = new QGLShader(QGLShader::Fragment, this); + const char *fsrc = + "uniform sampler2D texture;\n" + "varying mediump vec4 texc;\n" + "void main(void)\n" + "{\n" + " gl_FragColor = texture2D(texture, texc.st);\n" + "}\n"; + fshader->compileSourceCode(fsrc); + + program = new QGLShaderProgram(this); + program->addShader(vshader); + program->addShader(fshader); + program->bindAttributeLocation("vertex", PROGRAM_VERTEX_ATTRIBUTE); + program->bindAttributeLocation("texCoord", PROGRAM_TEXCOORD_ATTRIBUTE); + program->link(); + + program->bind(); + program->setUniformValue("texture", 0); + +#endif +} + +void GLWidget::paintGL() +{ + qglClearColor(clearColor); + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + +#if !defined(QT_OPENGL_ES_2) + + glLoadIdentity(); + glTranslatef(0.0f, 0.0f, -10.0f); + glRotatef(xRot / 16.0f, 1.0f, 0.0f, 0.0f); + glRotatef(yRot / 16.0f, 0.0f, 1.0f, 0.0f); + glRotatef(zRot / 16.0f, 0.0f, 0.0f, 1.0f); + + glVertexPointer(3, GL_FLOAT, 0, vertices.constData()); + glTexCoordPointer(2, GL_FLOAT, 0, texCoords.constData()); + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + +#else + + QMatrix4x4 m; + m.ortho(-0.5f, +0.5f, +0.5f, -0.5f, 4.0f, 15.0f); + m.translate(0.0f, 0.0f, -10.0f); + m.rotate(xRot / 16.0f, 1.0f, 0.0f, 0.0f); + m.rotate(yRot / 16.0f, 0.0f, 1.0f, 0.0f); + m.rotate(zRot / 16.0f, 0.0f, 0.0f, 1.0f); + + program->setUniformValue("matrix", m); + program->enableAttributeArray(PROGRAM_VERTEX_ATTRIBUTE); + program->enableAttributeArray(PROGRAM_TEXCOORD_ATTRIBUTE); + program->setAttributeArray + (PROGRAM_VERTEX_ATTRIBUTE, vertices.constData()); + program->setAttributeArray + (PROGRAM_TEXCOORD_ATTRIBUTE, texCoords.constData()); + +#endif + + for (int i = 0; i < 6; ++i) { + glBindTexture(GL_TEXTURE_2D, textures[i]); + glDrawArrays(GL_TRIANGLE_FAN, i * 4, 4); + } +} + +void GLWidget::resizeGL(int width, int height) +{ + int side = qMin(width, height); + glViewport((width - side) / 2, (height - side) / 2, side, side); + +#if !defined(QT_OPENGL_ES_2) + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); +#ifndef QT_OPENGL_ES + glOrtho(-0.5, +0.5, +0.5, -0.5, 4.0, 15.0); +#else + glOrthof(-0.5, +0.5, +0.5, -0.5, 4.0, 15.0); +#endif + glMatrixMode(GL_MODELVIEW); +#endif +} + +void GLWidget::mousePressEvent(QMouseEvent *event) +{ + lastPos = event->pos(); +} + +void GLWidget::mouseMoveEvent(QMouseEvent *event) +{ + int dx = event->x() - lastPos.x(); + int dy = event->y() - lastPos.y(); + + if (event->buttons() & Qt::LeftButton) { + rotateBy(8 * dy, 8 * dx, 0); + } else if (event->buttons() & Qt::RightButton) { + rotateBy(8 * dy, 0, 8 * dx); + } + lastPos = event->pos(); +} + +void GLWidget::mouseReleaseEvent(QMouseEvent * /* event */) +{ + emit clicked(); +} + +void GLWidget::makeObject() +{ + static const int coords[6][4][3] = { + { { +1, -1, -1 }, { -1, -1, -1 }, { -1, +1, -1 }, { +1, +1, -1 } }, + { { +1, +1, -1 }, { -1, +1, -1 }, { -1, +1, +1 }, { +1, +1, +1 } }, + { { +1, -1, +1 }, { +1, -1, -1 }, { +1, +1, -1 }, { +1, +1, +1 } }, + { { -1, -1, -1 }, { -1, -1, +1 }, { -1, +1, +1 }, { -1, +1, -1 } }, + { { +1, -1, +1 }, { -1, -1, +1 }, { -1, -1, -1 }, { +1, -1, -1 } }, + { { -1, -1, +1 }, { +1, -1, +1 }, { +1, +1, +1 }, { -1, +1, +1 } } + }; + + for (int j=0; j < 6; ++j) { + textures[j] = bindTexture + (QPixmap(QString(":/images/side%1.png").arg(j + 1)), GL_TEXTURE_2D); + } + + for (int i = 0; i < 6; ++i) { + for (int j = 0; j < 4; ++j) { + texCoords.append + (QVector2D(j == 0 || j == 3, j == 0 || j == 1)); + vertices.append + (QVector3D(0.2 * coords[i][j][0], 0.2 * coords[i][j][1], + 0.2 * coords[i][j][2])); + } + } +} diff --git a/examples/opengl/textures/glwidget.h b/examples/opengl/textures/glwidget.h new file mode 100644 index 0000000000..fd9246bef2 --- /dev/null +++ b/examples/opengl/textures/glwidget.h @@ -0,0 +1,89 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef GLWIDGET_H +#define GLWIDGET_H + +#include <QtGui> +#include <QGLWidget> + +class QGLShaderProgram; + +class GLWidget : public QGLWidget +{ + Q_OBJECT + +public: + GLWidget(QWidget *parent = 0, QGLWidget *shareWidget = 0); + ~GLWidget(); + + QSize minimumSizeHint() const; + QSize sizeHint() const; + void rotateBy(int xAngle, int yAngle, int zAngle); + void setClearColor(const QColor &color); + +signals: + void clicked(); + +protected: + void initializeGL(); + void paintGL(); + void resizeGL(int width, int height); + void mousePressEvent(QMouseEvent *event); + void mouseMoveEvent(QMouseEvent *event); + void mouseReleaseEvent(QMouseEvent *event); + +private: + void makeObject(); + + QColor clearColor; + QPoint lastPos; + int xRot; + int yRot; + int zRot; + GLuint textures[6]; + QVector<QVector3D> vertices; + QVector<QVector2D> texCoords; +#ifdef QT_OPENGL_ES_2 + QGLShaderProgram *program; +#endif +}; + +#endif diff --git a/examples/opengl/textures/images/side1.png b/examples/opengl/textures/images/side1.png Binary files differnew file mode 100644 index 0000000000..2e6b471cc5 --- /dev/null +++ b/examples/opengl/textures/images/side1.png diff --git a/examples/opengl/textures/images/side2.png b/examples/opengl/textures/images/side2.png Binary files differnew file mode 100644 index 0000000000..d1acf1b2a0 --- /dev/null +++ b/examples/opengl/textures/images/side2.png diff --git a/examples/opengl/textures/images/side3.png b/examples/opengl/textures/images/side3.png Binary files differnew file mode 100644 index 0000000000..a6386131d8 --- /dev/null +++ b/examples/opengl/textures/images/side3.png diff --git a/examples/opengl/textures/images/side4.png b/examples/opengl/textures/images/side4.png Binary files differnew file mode 100644 index 0000000000..ebbc1e3c34 --- /dev/null +++ b/examples/opengl/textures/images/side4.png diff --git a/examples/opengl/textures/images/side5.png b/examples/opengl/textures/images/side5.png Binary files differnew file mode 100644 index 0000000000..fa2f709fe7 --- /dev/null +++ b/examples/opengl/textures/images/side5.png diff --git a/examples/opengl/textures/images/side6.png b/examples/opengl/textures/images/side6.png Binary files differnew file mode 100644 index 0000000000..97141e45eb --- /dev/null +++ b/examples/opengl/textures/images/side6.png diff --git a/examples/opengl/textures/main.cpp b/examples/opengl/textures/main.cpp new file mode 100644 index 0000000000..b477e7b05b --- /dev/null +++ b/examples/opengl/textures/main.cpp @@ -0,0 +1,53 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> + +#include "window.h" + +int main(int argc, char *argv[]) +{ + Q_INIT_RESOURCE(textures); + + QApplication app(argc, argv); + Window window; + window.show(); + return app.exec(); +} diff --git a/examples/opengl/textures/textures.pro b/examples/opengl/textures/textures.pro new file mode 100644 index 0000000000..d2e311bc2d --- /dev/null +++ b/examples/opengl/textures/textures.pro @@ -0,0 +1,15 @@ +HEADERS = glwidget.h \ + window.h +SOURCES = glwidget.cpp \ + main.cpp \ + window.cpp +RESOURCES = textures.qrc +QT += opengl + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/textures +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS textures.pro images +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/opengl/textures +INSTALLS += target sources + +symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) diff --git a/examples/opengl/textures/textures.qrc b/examples/opengl/textures/textures.qrc new file mode 100644 index 0000000000..efa9e9c8d2 --- /dev/null +++ b/examples/opengl/textures/textures.qrc @@ -0,0 +1,10 @@ +<!DOCTYPE RCC><RCC version="1.0"> +<qresource> + <file>images/side1.png</file> + <file>images/side2.png</file> + <file>images/side3.png</file> + <file>images/side4.png</file> + <file>images/side5.png</file> + <file>images/side6.png</file> +</qresource> +</RCC> diff --git a/examples/opengl/textures/window.cpp b/examples/opengl/textures/window.cpp new file mode 100644 index 0000000000..50f3afecce --- /dev/null +++ b/examples/opengl/textures/window.cpp @@ -0,0 +1,86 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "glwidget.h" +#include "window.h" + +Window::Window() +{ + QGridLayout *mainLayout = new QGridLayout; + + for (int i = 0; i < NumRows; ++i) { + for (int j = 0; j < NumColumns; ++j) { + QColor clearColor; + clearColor.setHsv(((i * NumColumns) + j) * 255 + / (NumRows * NumColumns - 1), + 255, 63); + + glWidgets[i][j] = new GLWidget(0, 0); + glWidgets[i][j]->setClearColor(clearColor); + glWidgets[i][j]->rotateBy(+42 * 16, +42 * 16, -21 * 16); + mainLayout->addWidget(glWidgets[i][j], i, j); + + connect(glWidgets[i][j], SIGNAL(clicked()), + this, SLOT(setCurrentGlWidget())); + } + } + setLayout(mainLayout); + + currentGlWidget = glWidgets[0][0]; + + QTimer *timer = new QTimer(this); + connect(timer, SIGNAL(timeout()), this, SLOT(rotateOneStep())); + timer->start(20); + + setWindowTitle(tr("Textures")); +} + +void Window::setCurrentGlWidget() +{ + currentGlWidget = qobject_cast<GLWidget *>(sender()); +} + +void Window::rotateOneStep() +{ + if (currentGlWidget) + currentGlWidget->rotateBy(+2 * 16, +2 * 16, -1 * 16); +} diff --git a/examples/opengl/textures/window.h b/examples/opengl/textures/window.h new file mode 100644 index 0000000000..571fae47bc --- /dev/null +++ b/examples/opengl/textures/window.h @@ -0,0 +1,66 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef WINDOW_H +#define WINDOW_H + +#include <QWidget> + +class GLWidget; + +class Window : public QWidget +{ + Q_OBJECT + +public: + Window(); + +private slots: + void setCurrentGlWidget(); + void rotateOneStep(); + +private: + enum { NumRows = 2, NumColumns = 3 }; + + GLWidget *glWidgets[NumRows][NumColumns]; + GLWidget *currentGlWidget; +}; + +#endif |
