diff options
Diffstat (limited to 'examples/opengl/qopenglwidget')
-rw-r--r-- | examples/opengl/qopenglwidget/CMakeLists.txt | 59 | ||||
-rw-r--r-- | examples/opengl/qopenglwidget/bubble.cpp | 146 | ||||
-rw-r--r-- | examples/opengl/qopenglwidget/bubble.h | 86 | ||||
-rw-r--r-- | examples/opengl/qopenglwidget/glwidget.cpp | 560 | ||||
-rw-r--r-- | examples/opengl/qopenglwidget/glwidget.h | 133 | ||||
-rw-r--r-- | examples/opengl/qopenglwidget/main.cpp | 89 | ||||
-rw-r--r-- | examples/opengl/qopenglwidget/mainwindow.cpp | 187 | ||||
-rw-r--r-- | examples/opengl/qopenglwidget/mainwindow.h | 83 | ||||
-rw-r--r-- | examples/opengl/qopenglwidget/qopenglwidget.pro | 15 | ||||
-rw-r--r-- | examples/opengl/qopenglwidget/qt.png | bin | 2991 -> 0 bytes | |||
-rw-r--r-- | examples/opengl/qopenglwidget/texture.qrc | 5 |
11 files changed, 0 insertions, 1363 deletions
diff --git a/examples/opengl/qopenglwidget/CMakeLists.txt b/examples/opengl/qopenglwidget/CMakeLists.txt deleted file mode 100644 index c5ca16a33b..0000000000 --- a/examples/opengl/qopenglwidget/CMakeLists.txt +++ /dev/null @@ -1,59 +0,0 @@ -# Generated from qopenglwidget.pro. - -cmake_minimum_required(VERSION 3.14) -project(qopenglwidget LANGUAGES CXX) - -set(CMAKE_INCLUDE_CURRENT_DIR ON) - -set(CMAKE_AUTOMOC ON) -set(CMAKE_AUTORCC ON) -set(CMAKE_AUTOUIC ON) - -if(NOT DEFINED INSTALL_EXAMPLESDIR) - set(INSTALL_EXAMPLESDIR "examples") -endif() - -set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/opengl/qopenglwidget") - -find_package(Qt6 COMPONENTS Core) -find_package(Qt6 COMPONENTS Gui) -find_package(Qt6 COMPONENTS Widgets) -find_package(Qt6 COMPONENTS OpenGL) -find_package(Qt6 COMPONENTS OpenGLWidgets) - -qt_add_executable(qopenglwidget - bubble.cpp bubble.h - glwidget.cpp glwidget.h - main.cpp - mainwindow.cpp mainwindow.h -) -set_target_properties(qopenglwidget PROPERTIES - WIN32_EXECUTABLE TRUE - MACOSX_BUNDLE TRUE -) -target_link_libraries(qopenglwidget PUBLIC - Qt::Core - Qt::Gui - Qt::OpenGL - Qt::OpenGLWidgets - Qt::Widgets -) - - -# Resources: -set(texture_resource_files - "qt.png" -) - -qt6_add_resources(qopenglwidget "texture" - PREFIX - "/" - FILES - ${texture_resource_files} -) - -install(TARGETS qopenglwidget - RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}" - BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}" - LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}" -) diff --git a/examples/opengl/qopenglwidget/bubble.cpp b/examples/opengl/qopenglwidget/bubble.cpp deleted file mode 100644 index 7e69aac3e7..0000000000 --- a/examples/opengl/qopenglwidget/bubble.cpp +++ /dev/null @@ -1,146 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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 <QtWidgets> - -#include "bubble.h" - -Bubble::Bubble(const QPointF &position, qreal radius, const QPointF &velocity) - : position(position), vel(velocity), radius(radius) -{ - innerColor = randomColor(); - outerColor = randomColor(); - updateBrush(); -} - -//! [0] -void Bubble::updateCache() -{ - delete cache; - cache = new QImage(qRound(radius * 2 + 2), qRound(radius * 2 + 2), QImage::Format_ARGB32_Premultiplied); - cache->fill(0x00000000); - QPainter p(cache); - p.setRenderHint(QPainter::Antialiasing); - QPen pen(Qt::white); - pen.setWidth(2); - p.setPen(pen); - p.setBrush(brush); - p.drawEllipse(1, 1, int(2*radius), int(2*radius)); -} -//! [0] - -Bubble::~Bubble() -{ - 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 + QRandomGenerator::global()->bounded(70)); - int green = int(185 + QRandomGenerator::global()->bounded(70)); - int blue = int(205 + QRandomGenerator::global()->bounded(50)); - int alpha = int(91 + QRandomGenerator::global()->bounded(100)); - - 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/qopenglwidget/bubble.h b/examples/opengl/qopenglwidget/bubble.h deleted file mode 100644 index 833ea02288..0000000000 --- a/examples/opengl/qopenglwidget/bubble.h +++ /dev/null @@ -1,86 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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_FORWARD_DECLARE_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 = nullptr; -}; - -#endif diff --git a/examples/opengl/qopenglwidget/glwidget.cpp b/examples/opengl/qopenglwidget/glwidget.cpp deleted file mode 100644 index a480fe5726..0000000000 --- a/examples/opengl/qopenglwidget/glwidget.cpp +++ /dev/null @@ -1,560 +0,0 @@ -/**************************************************************************** - ** - ** Copyright (C) 2016 The Qt Company Ltd. - ** Contact: https://www.qt.io/licensing/ - ** - ** This file is part of the examples of the Qt Toolkit. - ** - ** $QT_BEGIN_LICENSE:BSD$ - ** Commercial License Usage - ** Licensees holding valid commercial Qt licenses may use this file in - ** accordance with the commercial license agreement provided with the - ** Software or, alternatively, in accordance with the terms contained in - ** a written agreement between you and The Qt Company. For licensing terms - ** and conditions see https://www.qt.io/terms-conditions. For further - ** information use the contact form at https://www.qt.io/contact-us. - ** - ** BSD License Usage - ** Alternatively, 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 The Qt Company Ltd 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 <QOpenGLShaderProgram> -#include <QOpenGLTexture> -#include <QRandomGenerator> -#include <QCoreApplication> -#include <qmath.h> - -#include "mainwindow.h" -#include "bubble.h" - -const int bubbleNum = 8; - -#ifndef GL_SRGB8_ALPHA8 -#define GL_SRGB8_ALPHA8 0x8C43 -#endif - -GLWidget::GLWidget(MainWindow *mw, bool button, const QColor &background) - : m_mainWindow(mw), - m_hasButton(button), - m_background(background) -{ - setMinimumSize(300, 250); - if (QCoreApplication::arguments().contains(QStringLiteral("--srgb"))) - setTextureFormat(GL_SRGB8_ALPHA8); -} - -GLWidget::~GLWidget() -{ - qDeleteAll(m_bubbles); - - // And now release all OpenGL resources. - makeCurrent(); - delete m_texture; - delete m_program1; - delete m_program2; - delete m_vshader1; - delete m_fshader1; - delete m_vshader2; - delete m_fshader2; - m_vbo1.destroy(); - m_vbo2.destroy(); - doneCurrent(); -} - -void GLWidget::setScaling(int scale) -{ - if (scale > 30) - m_fScale = 1 + qreal(scale - 30) / 30 * 0.25; - else if (scale < 30) - m_fScale = 1 - (qreal(30 - scale) / 30 * 0.25); - else - m_fScale = 1; -} - -void GLWidget::setLogo() -{ - m_qtLogo = true; -} - -void GLWidget::setTexture() -{ - m_qtLogo = false; -} - -void GLWidget::setShowBubbles(bool bubbles) -{ - m_showBubbles = bubbles; -} - -void GLWidget::paintQtLogo() -{ - m_program1->enableAttributeArray(m_vertexAttr1); - m_program1->enableAttributeArray(m_normalAttr1); - - m_vbo1.bind(); - // The data in the buffer is placed like this: - // vertex1.x, vertex1.y, vertex1.z, normal1.x, normal1.y, normal1.z, vertex2.x, ... - m_program1->setAttributeBuffer(m_vertexAttr1, GL_FLOAT, 0, 3, 6 * sizeof(GLfloat)); - m_program1->setAttributeBuffer(m_normalAttr1, GL_FLOAT, 3 * sizeof(GLfloat), 3, 6 * sizeof(GLfloat)); - m_vbo1.release(); - - glDrawArrays(GL_TRIANGLES, 0, m_vertices.size()); - - m_program1->disableAttributeArray(m_normalAttr1); - m_program1->disableAttributeArray(m_vertexAttr1); -} - -void GLWidget::paintTexturedCube() -{ - m_texture->bind(); - - if (!m_vbo2.isCreated()) { - static 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 - }; - - static 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 - }; - - 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 - }; - - m_vbo2.create(); - m_vbo2.bind(); - m_vbo2.allocate(36 * 8 * sizeof(GLfloat)); - m_vbo2.write(0, afVertices, sizeof(afVertices)); - m_vbo2.write(sizeof(afVertices), afTexCoord, sizeof(afTexCoord)); - m_vbo2.write(sizeof(afVertices) + sizeof(afTexCoord), afNormals, sizeof(afNormals)); - m_vbo2.release(); - } - - m_program2->setUniformValue(m_textureUniform2, 0); // use texture unit 0 - - m_program2->enableAttributeArray(m_vertexAttr2); - m_program2->enableAttributeArray(m_normalAttr2); - m_program2->enableAttributeArray(m_texCoordAttr2); - - m_vbo2.bind(); - // In the buffer we first have 36 vertices (3 floats for each), then 36 texture - // coordinates (2 floats for each), then 36 normals (3 floats for each). - m_program2->setAttributeBuffer(m_vertexAttr2, GL_FLOAT, 0, 3); - m_program2->setAttributeBuffer(m_texCoordAttr2, GL_FLOAT, 36 * 3 * sizeof(GLfloat), 2); - m_program2->setAttributeBuffer(m_normalAttr2, GL_FLOAT, 36 * 5 * sizeof(GLfloat), 3); - m_vbo2.release(); - - glDrawArrays(GL_TRIANGLES, 0, 36); - - m_program2->disableAttributeArray(m_vertexAttr2); - m_program2->disableAttributeArray(m_normalAttr2); - m_program2->disableAttributeArray(m_texCoordAttr2); -} - -void GLWidget::initializeGL() -{ - initializeOpenGLFunctions(); - - m_texture = new QOpenGLTexture(QImage(":/qt.png")); - - m_vshader1 = new QOpenGLShader(QOpenGLShader::Vertex); - 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"; - m_vshader1->compileSourceCode(vsrc1); - - m_fshader1 = new QOpenGLShader(QOpenGLShader::Fragment); - const char *fsrc1 = - "varying mediump vec4 color;\n" - "void main(void)\n" - "{\n" - " gl_FragColor = color;\n" - "}\n"; - m_fshader1->compileSourceCode(fsrc1); - - m_program1 = new QOpenGLShaderProgram; - m_program1->addShader(m_vshader1); - m_program1->addShader(m_fshader1); - m_program1->link(); - - m_vertexAttr1 = m_program1->attributeLocation("vertex"); - m_normalAttr1 = m_program1->attributeLocation("normal"); - m_matrixUniform1 = m_program1->uniformLocation("matrix"); - - m_vshader2 = new QOpenGLShader(QOpenGLShader::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"; - m_vshader2->compileSourceCode(vsrc2); - - m_fshader2 = new QOpenGLShader(QOpenGLShader::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"; - m_fshader2->compileSourceCode(fsrc2); - - m_program2 = new QOpenGLShaderProgram; - m_program2->addShader(m_vshader2); - m_program2->addShader(m_fshader2); - m_program2->link(); - - m_vertexAttr2 = m_program2->attributeLocation("vertex"); - m_normalAttr2 = m_program2->attributeLocation("normal"); - m_texCoordAttr2 = m_program2->attributeLocation("texCoord"); - m_matrixUniform2 = m_program2->uniformLocation("matrix"); - m_textureUniform2 = m_program2->uniformLocation("tex"); - - m_fAngle = 0; - m_fScale = 1; - - createGeometry(); - - // Use a vertex buffer object. Client-side pointers are old-school and should be avoided. - m_vbo1.create(); - m_vbo1.bind(); - // For the cube all the data belonging to the texture coordinates and - // normals is placed separately, after the vertices. Here, for the Qt logo, - // let's do something different and potentially more efficient: create a - // properly interleaved data set. - const int vertexCount = m_vertices.count(); - QList<GLfloat> buf; - buf.resize(vertexCount * 3 * 2); - GLfloat *p = buf.data(); - for (int i = 0; i < vertexCount; ++i) { - *p++ = m_vertices[i].x(); - *p++ = m_vertices[i].y(); - *p++ = m_vertices[i].z(); - *p++ = m_normals[i].x(); - *p++ = m_normals[i].y(); - *p++ = m_normals[i].z(); - } - m_vbo1.allocate(buf.constData(), buf.count() * sizeof(GLfloat)); - m_vbo1.release(); - - createBubbles(bubbleNum - m_bubbles.count()); -} - -void GLWidget::paintGL() -{ - createBubbles(bubbleNum - m_bubbles.count()); - - QPainter painter; - painter.begin(this); - - painter.beginNativePainting(); - - glClearColor(m_background.redF(), m_background.greenF(), m_background.blueF(), m_transparent ? 0.0f : 1.0f); - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - - 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 (m_qtLogo) { - m_program1->bind(); - m_program1->setUniformValue(m_matrixUniform1, modelview); - paintQtLogo(); - m_program1->release(); - } else { - m_program2->bind(); - m_program2->setUniformValue(m_matrixUniform2, modelview); - paintTexturedCube(); - m_program2->release(); - } - - glDisable(GL_DEPTH_TEST); - glDisable(GL_CULL_FACE); - - painter.endNativePainting(); - - if (m_showBubbles) { - for (Bubble *bubble : qAsConst(m_bubbles)) - bubble->drawBubble(&painter); - } - - if (const int elapsed = m_time.elapsed()) { - QString framesPerSecond; - framesPerSecond.setNum(m_frames /(elapsed / 1000.0), 'f', 2); - painter.setPen(m_transparent ? Qt::black : Qt::white); - painter.drawText(20, 40, framesPerSecond + " paintGL calls / s"); - } - - painter.end(); - - for (Bubble *bubble : qAsConst(m_bubbles)) - bubble->move(rect()); - - if (!(m_frames % 100)) { - m_time.start(); - m_frames = 0; - } - m_fAngle += 1.0f; - ++m_frames; - - // When requested, follow the ideal way to animate: Rely on - // blocking swap and just schedule updates continuously. - if (!m_mainWindow->timerEnabled()) - update(); -} - -void GLWidget::createBubbles(int number) -{ - for (int i = 0; i < number; ++i) { - QPointF position(width()*(0.1 + QRandomGenerator::global()->bounded(0.8)), - height()*(0.1 + QRandomGenerator::global()->bounded(0.8))); - qreal radius = qMin(width(), height())*(0.0175 + QRandomGenerator::global()->bounded(0.0875)); - QPointF velocity(width()*0.0175*(-0.5 + QRandomGenerator::global()->bounded(1.0)), - height()*0.0175*(-0.5 + QRandomGenerator::global()->bounded(1.0))); - - m_bubbles.append(new Bubble(position, radius, velocity)); - } -} - -void GLWidget::createGeometry() -{ - m_vertices.clear(); - m_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 int NumSectors = 100; - const qreal sectorAngle = 2 * qreal(M_PI) / NumSectors; - - for (int i = 0; i < NumSectors; ++i) { - qreal angle = i * sectorAngle; - qreal x5 = 0.30 * sin(angle); - qreal y5 = 0.30 * cos(angle); - qreal x6 = 0.20 * sin(angle); - qreal y6 = 0.20 * cos(angle); - - angle += sectorAngle; - qreal x7 = 0.20 * sin(angle); - qreal y7 = 0.20 * cos(angle); - qreal x8 = 0.30 * sin(angle); - qreal y8 = 0.30 * cos(angle); - - quad(x5, y5, x6, y6, x7, y7, x8, y8); - - extrude(x6, y6, x7, y7); - extrude(x8, y8, x5, y5); - } - - for (int i = 0;i < m_vertices.size();i++) - m_vertices[i] *= 2.0f; -} - -void GLWidget::quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4) -{ - m_vertices << QVector3D(x1, y1, -0.05f); - m_vertices << QVector3D(x2, y2, -0.05f); - m_vertices << QVector3D(x4, y4, -0.05f); - - m_vertices << QVector3D(x3, y3, -0.05f); - m_vertices << QVector3D(x4, y4, -0.05f); - m_vertices << QVector3D(x2, y2, -0.05f); - - QVector3D n = QVector3D::normal - (QVector3D(x2 - x1, y2 - y1, 0.0f), QVector3D(x4 - x1, y4 - y1, 0.0f)); - - m_normals << n; - m_normals << n; - m_normals << n; - - m_normals << n; - m_normals << n; - m_normals << n; - - m_vertices << QVector3D(x4, y4, 0.05f); - m_vertices << QVector3D(x2, y2, 0.05f); - m_vertices << QVector3D(x1, y1, 0.05f); - - m_vertices << QVector3D(x2, y2, 0.05f); - m_vertices << QVector3D(x4, y4, 0.05f); - m_vertices << QVector3D(x3, y3, 0.05f); - - n = QVector3D::normal - (QVector3D(x2 - x4, y2 - y4, 0.0f), QVector3D(x1 - x4, y1 - y4, 0.0f)); - - m_normals << n; - m_normals << n; - m_normals << n; - - m_normals << n; - m_normals << n; - m_normals << n; -} - -void GLWidget::extrude(qreal x1, qreal y1, qreal x2, qreal y2) -{ - m_vertices << QVector3D(x1, y1, +0.05f); - m_vertices << QVector3D(x2, y2, +0.05f); - m_vertices << QVector3D(x1, y1, -0.05f); - - m_vertices << QVector3D(x2, y2, -0.05f); - m_vertices << QVector3D(x1, y1, -0.05f); - m_vertices << QVector3D(x2, y2, +0.05f); - - QVector3D n = QVector3D::normal - (QVector3D(x2 - x1, y2 - y1, 0.0f), QVector3D(0.0f, 0.0f, -0.1f)); - - m_normals << n; - m_normals << n; - m_normals << n; - - m_normals << n; - m_normals << n; - m_normals << n; -} - -void GLWidget::setTransparent(bool transparent) -{ - setAttribute(Qt::WA_AlwaysStackOnTop, transparent); - m_transparent = transparent; - // Call update() on the top-level window after toggling AlwayStackOnTop to make sure - // the entire backingstore is updated accordingly. - window()->update(); -} - -void GLWidget::resizeGL(int, int) -{ - if (m_hasButton) { - if (!m_btn) { - m_btn = new QPushButton("A widget on top.\nPress for more widgets.", this); - connect(m_btn, &QPushButton::clicked, this, &GLWidget::handleButtonPress); - } - m_btn->move(20, 80); - } -} - -void GLWidget::handleButtonPress() -{ - m_mainWindow->addNew(); -} diff --git a/examples/opengl/qopenglwidget/glwidget.h b/examples/opengl/qopenglwidget/glwidget.h deleted file mode 100644 index 50f8aa9be5..0000000000 --- a/examples/opengl/qopenglwidget/glwidget.h +++ /dev/null @@ -1,133 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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 <QOpenGLWidget> -#include <QOpenGLFunctions> -#include <QOpenGLBuffer> -#include <QVector3D> -#include <QMatrix4x4> -#include <QElapsedTimer> -#include <QList> -#include <QPushButton> - -class Bubble; -class MainWindow; - -QT_FORWARD_DECLARE_CLASS(QOpenGLTexture) -QT_FORWARD_DECLARE_CLASS(QOpenGLShader) -QT_FORWARD_DECLARE_CLASS(QOpenGLShaderProgram) - -class GLWidget : public QOpenGLWidget, protected QOpenGLFunctions -{ - Q_OBJECT -public: - GLWidget(MainWindow *mw, bool button, const QColor &background); - ~GLWidget(); - -public slots: - void setScaling(int scale); - void setLogo(); - void setTexture(); - void setShowBubbles(bool); - void setTransparent(bool transparent); - -private slots: - void handleButtonPress(); - -protected: - void resizeGL(int w, int h) override; - void paintGL() override; - void initializeGL() override; - -private: - 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); - - MainWindow *m_mainWindow; - qreal m_fAngle = 0; - qreal m_fScale = 1; - bool m_showBubbles = true; - QList<QVector3D> m_vertices; - QList<QVector3D> m_normals; - bool m_qtLogo = true; - QList<Bubble *> m_bubbles; - int m_frames = 0; - QElapsedTimer m_time; - QOpenGLShader *m_vshader1 = nullptr; - QOpenGLShader *m_fshader1 = nullptr; - QOpenGLShader *m_vshader2 = nullptr; - QOpenGLShader *m_fshader2 = nullptr; - QOpenGLShaderProgram *m_program1 = nullptr; - QOpenGLShaderProgram *m_program2 = nullptr; - QOpenGLTexture *m_texture = nullptr; - QOpenGLBuffer m_vbo1; - QOpenGLBuffer m_vbo2; - int m_vertexAttr1 = 0; - int m_normalAttr1 = 0; - int m_matrixUniform1 = 0; - int m_vertexAttr2 = 0; - int m_normalAttr2 = 0; - int m_texCoordAttr2 = 0; - int m_matrixUniform2 = 0; - int m_textureUniform2 = 0; - bool m_transparent = false; - QPushButton *m_btn = nullptr; - bool m_hasButton; - QColor m_background; -}; - -#endif diff --git a/examples/opengl/qopenglwidget/main.cpp b/examples/opengl/qopenglwidget/main.cpp deleted file mode 100644 index 968b2a7258..0000000000 --- a/examples/opengl/qopenglwidget/main.cpp +++ /dev/null @@ -1,89 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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 <QColorSpace> -#include <QSurfaceFormat> -#include <QCommandLineParser> -#include <QCommandLineOption> -#include "mainwindow.h" - -int main( int argc, char ** argv ) -{ - Q_INIT_RESOURCE(texture); - QApplication a( argc, argv ); - - QCoreApplication::setApplicationName("Qt QOpenGLWidget Example"); - QCoreApplication::setOrganizationName("QtProject"); - QCoreApplication::setApplicationVersion(QT_VERSION_STR); - QCommandLineParser parser; - parser.setApplicationDescription(QCoreApplication::applicationName()); - parser.addHelpOption(); - parser.addVersionOption(); - QCommandLineOption multipleSampleOption("multisample", "Multisampling"); - parser.addOption(multipleSampleOption); - QCommandLineOption srgbOption("srgb", "Use sRGB Color Space"); - parser.addOption(srgbOption); - parser.process(a); - - QSurfaceFormat format; - format.setDepthBufferSize(24); - format.setStencilBufferSize(8); - if (parser.isSet(srgbOption)) - format.setColorSpace(QColorSpace::SRgb); - if (parser.isSet(multipleSampleOption)) - format.setSamples(4); - QSurfaceFormat::setDefaultFormat(format); - - MainWindow mw; - mw.showMaximized(); - return a.exec(); -} diff --git a/examples/opengl/qopenglwidget/mainwindow.cpp b/examples/opengl/qopenglwidget/mainwindow.cpp deleted file mode 100644 index eb34f87cb7..0000000000 --- a/examples/opengl/qopenglwidget/mainwindow.cpp +++ /dev/null @@ -1,187 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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 <QSlider> -#include <QLabel> -#include <QCheckBox> -#include <QRandomGenerator> -#include <QSpinBox> -#include <QScrollArea> - -#include "glwidget.h" - -MainWindow::MainWindow() - : m_nextX(1), m_nextY(1) -{ - GLWidget *glwidget = new GLWidget(this, true, qRgb(20, 20, 50)); - m_glWidgets << glwidget; - QLabel *label = new QLabel(this); - m_timer = new QTimer(this); - QSlider *slider = new QSlider(this); - slider->setOrientation(Qt::Horizontal); - - QLabel *updateLabel = new QLabel("Update interval"); - QSpinBox *updateInterval = new QSpinBox(this); - updateInterval->setSuffix(" ms"); - updateInterval->setValue(10); - updateInterval->setToolTip("Interval for the timer that calls update().\n" - "Note that on most systems the swap will block to wait for vsync\n" - "and therefore an interval < 16 ms will likely lead to a 60 FPS update rate."); - QGroupBox *updateGroupBox = new QGroupBox(this); - QCheckBox *timerBased = new QCheckBox("Use timer", this); - timerBased->setChecked(false); - timerBased->setToolTip("Toggles using a timer to trigger update().\n" - "When not set, each paintGL() schedules the next update immediately,\n" - "expecting the blocking swap to throttle the thread.\n" - "This shows how unnecessary the timer is in most cases."); - QCheckBox *transparent = new QCheckBox("Transparent background", this); - transparent->setToolTip("Toggles Qt::WA_AlwaysStackOnTop and transparent clear color for glClear().\n" - "Note how the button on top stacks incorrectly when enabling this."); - QHBoxLayout *updateLayout = new QHBoxLayout; - updateLayout->addWidget(updateLabel); - updateLayout->addWidget(updateInterval); - updateLayout->addWidget(timerBased); - updateLayout->addWidget(transparent); - updateGroupBox->setLayout(updateLayout); - - slider->setRange(0, 50); - slider->setSliderPosition(30); - m_timer->setInterval(10); - label->setText("A scrollable QOpenGLWidget"); - label->setAlignment(Qt::AlignHCenter); - - QGroupBox * groupBox = new QGroupBox(this); - setCentralWidget(groupBox); - groupBox->setTitle("QOpenGLWidget Example"); - - m_layout = new QGridLayout(groupBox); - - QScrollArea *scrollArea = new QScrollArea; - scrollArea->setWidget(glwidget); - - m_layout->addWidget(scrollArea,1,0,8,1); - m_layout->addWidget(label,9,0,1,1); - m_layout->addWidget(updateGroupBox, 10, 0, 1, 1); - m_layout->addWidget(slider, 11,0,1,1); - - groupBox->setLayout(m_layout); - - - QMenu *fileMenu = menuBar()->addMenu("&File"); - fileMenu->addAction("E&xit", this, &QWidget::close); - QMenu *showMenu = menuBar()->addMenu("&Show"); - showMenu->addAction("Show 3D Logo", glwidget, &GLWidget::setLogo); - showMenu->addAction("Show 2D Texture", glwidget, &GLWidget::setTexture); - QAction *showBubbles = showMenu->addAction("Show bubbles", glwidget, &GLWidget::setShowBubbles); - showBubbles->setCheckable(true); - showBubbles->setChecked(true); - QMenu *helpMenu = menuBar()->addMenu("&Help"); - helpMenu->addAction("About Qt", qApp, &QApplication::aboutQt); - - connect(m_timer, &QTimer::timeout, glwidget, QOverload<>::of(&QWidget::update)); - - connect(slider, &QAbstractSlider::valueChanged, glwidget, &GLWidget::setScaling); - connect(transparent, &QCheckBox::toggled, glwidget, &GLWidget::setTransparent); - connect(updateInterval, &QSpinBox::valueChanged, - this, &MainWindow::updateIntervalChanged); - connect(timerBased, &QCheckBox::toggled, this, &MainWindow::timerUsageChanged); - connect(timerBased, &QCheckBox::toggled, updateInterval, &QWidget::setEnabled); - - if (timerBased->isChecked()) - m_timer->start(); - else - updateInterval->setEnabled(false); -} - -void MainWindow::updateIntervalChanged(int value) -{ - m_timer->setInterval(value); - if (m_timer->isActive()) - m_timer->start(); -} - -void MainWindow::addNew() -{ - if (m_nextY == 4) - return; - GLWidget *w = new GLWidget(this, false, qRgb(QRandomGenerator::global()->bounded(256), - QRandomGenerator::global()->bounded(256), - QRandomGenerator::global()->bounded(256))); - m_glWidgets << w; - connect(m_timer, &QTimer::timeout, w, QOverload<>::of(&QWidget::update)); - m_layout->addWidget(w, m_nextY, m_nextX, 1, 1); - if (m_nextX == 3) { - m_nextX = 1; - ++m_nextY; - } else { - ++m_nextX; - } -} - -void MainWindow::timerUsageChanged(bool enabled) -{ - if (enabled) { - m_timer->start(); - } else { - m_timer->stop(); - for (QOpenGLWidget *w : qAsConst(m_glWidgets)) - w->update(); - } -} - -void MainWindow::resizeEvent(QResizeEvent *) -{ - m_glWidgets[0]->setMinimumSize(size() + QSize(128, 128)); -} diff --git a/examples/opengl/qopenglwidget/mainwindow.h b/examples/opengl/qopenglwidget/mainwindow.h deleted file mode 100644 index 43cc55100e..0000000000 --- a/examples/opengl/qopenglwidget/mainwindow.h +++ /dev/null @@ -1,83 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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> -#include <QTimer> -#include <QGridLayout> - -QT_FORWARD_DECLARE_CLASS(QOpenGLWidget) - -class MainWindow : public QMainWindow -{ - Q_OBJECT - -public: - MainWindow(); - void addNew(); - bool timerEnabled() const { return m_timer->isActive(); } - - void resizeEvent(QResizeEvent *); - -private slots: - void updateIntervalChanged(int value); - void timerUsageChanged(bool enabled); - -private: - QTimer *m_timer; - QGridLayout *m_layout; - int m_nextX; - int m_nextY; - QList<QOpenGLWidget *> m_glWidgets; -}; - -#endif diff --git a/examples/opengl/qopenglwidget/qopenglwidget.pro b/examples/opengl/qopenglwidget/qopenglwidget.pro deleted file mode 100644 index 7ac546d7ce..0000000000 --- a/examples/opengl/qopenglwidget/qopenglwidget.pro +++ /dev/null @@ -1,15 +0,0 @@ -QT += widgets opengl openglwidgets - -SOURCES += main.cpp \ - glwidget.cpp \ - mainwindow.cpp \ - bubble.cpp - -HEADERS += glwidget.h \ - mainwindow.h \ - bubble.h - -RESOURCES += texture.qrc - -target.path = $$[QT_INSTALL_EXAMPLES]/opengl/qopenglwidget -INSTALLS += target diff --git a/examples/opengl/qopenglwidget/qt.png b/examples/opengl/qopenglwidget/qt.png Binary files differdeleted file mode 100644 index 4f68e162de..0000000000 --- a/examples/opengl/qopenglwidget/qt.png +++ /dev/null diff --git a/examples/opengl/qopenglwidget/texture.qrc b/examples/opengl/qopenglwidget/texture.qrc deleted file mode 100644 index ff1d0e535f..0000000000 --- a/examples/opengl/qopenglwidget/texture.qrc +++ /dev/null @@ -1,5 +0,0 @@ -<!DOCTYPE RCC><RCC version="1.0"> -<qresource> - <file>qt.png</file> -</qresource> -</RCC> |