Created
October 28, 2014 14:09
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/**************************************************************************** | |
** | |
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). | |
** Contact: http://www.qt-project.org/legal | |
** | |
** 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 Digia Plc 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 <QtWidgets> | |
#include <QtOpenGL> | |
#include <math.h> | |
#include "glwidget.h" | |
#ifndef GL_MULTISAMPLE | |
#define GL_MULTISAMPLE 0x809D | |
#endif | |
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); | |
} | |
GLWidget::~GLWidget() | |
{ | |
} | |
QSize GLWidget::minimumSizeHint() const | |
{ | |
return QSize(50, 50); | |
} | |
QSize GLWidget::sizeHint() const | |
{ | |
return QSize(400, 400); | |
} | |
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; | |
emit xRotationChanged(angle); | |
updateGL(); | |
} | |
} | |
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(); | |
} | |
} | |
void GLWidget::initializeGL() | |
{ | |
qglClearColor(qtPurple.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); | |
} | |
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); | |
} | |
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); | |
} | |
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(); | |
} |
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/**************************************************************************** | |
** | |
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). | |
** Contact: http://www.qt-project.org/legal | |
** | |
** 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 Digia Plc 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; | |
class GLWidget : public QGLWidget | |
{ | |
Q_OBJECT | |
public: | |
GLWidget(QWidget *parent = 0); | |
~GLWidget(); | |
QSize minimumSizeHint() const; | |
QSize sizeHint() const; | |
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: | |
QtLogo *logo; | |
int xRot; | |
int yRot; | |
int zRot; | |
QPoint lastPos; | |
QColor qtGreen; | |
QColor qtPurple; | |
}; | |
#endif |
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HEADERS = glwidget.h \ | |
window.h | |
SOURCES = glwidget.cpp \ | |
main.cpp \ | |
window.cpp | |
QT += opengl widgets | |
# install | |
target.path = $$[QT_INSTALL_EXAMPLES]/opengl/hellogl | |
INSTALLS += target |
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/**************************************************************************** | |
** | |
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). | |
** Contact: http://www.qt-project.org/legal | |
** | |
** 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 Digia Plc 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(); | |
} |
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/**************************************************************************** | |
** | |
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). | |
** Contact: http://www.qt-project.org/legal | |
** | |
** 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 Digia Plc 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 <QtWidgets> | |
#include "glwidget.h" | |
#include "window.h" | |
Window::Window() | |
{ | |
QGLFormat qglFormat; | |
qglFormat.setAlpha(true); | |
QGLFormat::setDefaultFormat(qglFormat); | |
glWidget = new GLWidget; | |
QHBoxLayout *mainLayout = new QHBoxLayout; | |
mainLayout->addWidget(glWidget); | |
setLayout(mainLayout); | |
setWindowTitle(tr("Hello GL")); | |
} | |
void Window::keyPressEvent(QKeyEvent *e) | |
{ | |
if (e->key() == Qt::Key_Escape) | |
close(); | |
else | |
QWidget::keyPressEvent(e); | |
} |
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/**************************************************************************** | |
** | |
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). | |
** Contact: http://www.qt-project.org/legal | |
** | |
** 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 Digia Plc 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 QSlider; | |
class GLWidget; | |
class Window : public QWidget | |
{ | |
Q_OBJECT | |
public: | |
Window(); | |
protected: | |
void keyPressEvent(QKeyEvent *event); | |
private: | |
GLWidget *glWidget; | |
}; | |
#endif |
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