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-rw-r--r--examples/opengl/grabber/glwidget.cpp283
-rw-r--r--examples/opengl/grabber/glwidget.h97
-rw-r--r--examples/opengl/grabber/grabber.pro14
-rw-r--r--examples/opengl/grabber/main.cpp51
-rw-r--r--examples/opengl/grabber/mainwindow.cpp206
-rw-r--r--examples/opengl/grabber/mainwindow.h94
6 files changed, 745 insertions, 0 deletions
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
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-30 21:29:34 +0000