Long live Qt 4.5!

4 files changed, 309 insertions, 0 deletions

diff --git a/examples/opengl/samplebuffers/glwidget.cpp b/examples/opengl/samplebuffers/glwidget.cpp
new file mode 100644
index 0000000..381ff95
--- /dev/null
+++ b/examples/opengl/samplebuffers/glwidget.cpp
@@ -0,0 +1,165 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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 trolltechGreen(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(trolltechGreen);
+            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(trolltechGreen);
+        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 0000000..dee739e
--- /dev/null
+++ b/examples/opengl/samplebuffers/glwidget.h
@@ -0,0 +1,62 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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 0000000..88a37b4
--- /dev/null
+++ b/examples/opengl/samplebuffers/main.cpp
@@ -0,0 +1,72 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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 0000000..9eb5f58
--- /dev/null
+++ b/examples/opengl/samplebuffers/samplebuffers.pro
@@ -0,0 +1,10 @@
+HEADERS += glwidget.h
+SOURCES += glwidget.cpp main.cpp
+
+QT += opengl
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl/samplebuffers
+sources.files = $$SOURCES $$HEADERS samplebuffers.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/opengl/samplebuffers
+INSTALLS += target sources