summaryrefslogtreecommitdiffstats
path: root/examples/opengl/2dpainting
diff options
context:
space:
mode:
authorLars Knoll <lars.knoll@nokia.com>2009-03-23 09:18:55 (GMT)
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 09:18:55 (GMT)
commite5fcad302d86d316390c6b0f62759a067313e8a9 (patch)
treec2afbf6f1066b6ce261f14341cf6d310e5595bc1 /examples/opengl/2dpainting
downloadQt-e5fcad302d86d316390c6b0f62759a067313e8a9.zip
Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.gz
Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.bz2
Long live Qt 4.5!
Diffstat (limited to 'examples/opengl/2dpainting')
-rw-r--r--examples/opengl/2dpainting/2dpainting.pro17
-rw-r--r--examples/opengl/2dpainting/glwidget.cpp73
-rw-r--r--examples/opengl/2dpainting/glwidget.h73
-rw-r--r--examples/opengl/2dpainting/helper.cpp91
-rw-r--r--examples/opengl/2dpainting/helper.h72
-rw-r--r--examples/opengl/2dpainting/main.cpp51
-rw-r--r--examples/opengl/2dpainting/widget.cpp73
-rw-r--r--examples/opengl/2dpainting/widget.h72
-rw-r--r--examples/opengl/2dpainting/window.cpp72
-rw-r--r--examples/opengl/2dpainting/window.h67
10 files changed, 661 insertions, 0 deletions
diff --git a/examples/opengl/2dpainting/2dpainting.pro b/examples/opengl/2dpainting/2dpainting.pro
new file mode 100644
index 0000000..c45b764
--- /dev/null
+++ b/examples/opengl/2dpainting/2dpainting.pro
@@ -0,0 +1,17 @@
+QT += opengl
+
+HEADERS = glwidget.h \
+ helper.h \
+ widget.h \
+ window.h
+SOURCES = glwidget.cpp \
+ helper.cpp \
+ main.cpp \
+ widget.cpp \
+ window.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl/2dpainting
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS 2dpainting.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/opengl/2dpainting
+INSTALLS += target sources
diff --git a/examples/opengl/2dpainting/glwidget.cpp b/examples/opengl/2dpainting/glwidget.cpp
new file mode 100644
index 0000000..d5f63d2
--- /dev/null
+++ b/examples/opengl/2dpainting/glwidget.cpp
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** 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>
+#include "glwidget.h"
+#include "helper.h"
+
+//! [0]
+GLWidget::GLWidget(Helper *helper, QWidget *parent)
+ : QGLWidget(QGLFormat(QGL::SampleBuffers), parent), helper(helper)
+{
+ elapsed = 0;
+ setFixedSize(200, 200);
+ setAutoFillBackground(false);
+}
+//! [0]
+
+//! [1]
+void GLWidget::animate()
+{
+ elapsed = (elapsed + qobject_cast<QTimer*>(sender())->interval()) % 1000;
+ repaint();
+}
+//! [1]
+
+//! [2]
+void GLWidget::paintEvent(QPaintEvent *event)
+{
+ QPainter painter;
+ painter.begin(this);
+ painter.setRenderHint(QPainter::Antialiasing);
+ helper->paint(&painter, event, elapsed);
+ painter.end();
+}
+//! [2]
diff --git a/examples/opengl/2dpainting/glwidget.h b/examples/opengl/2dpainting/glwidget.h
new file mode 100644
index 0000000..f3a9bd5
--- /dev/null
+++ b/examples/opengl/2dpainting/glwidget.h
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef GLWIDGET_H
+#define GLWIDGET_H
+
+#include <QGLWidget>
+
+//! [0]
+class Helper;
+QT_BEGIN_NAMESPACE
+class QPaintEvent;
+class QWidget;
+QT_END_NAMESPACE
+
+class GLWidget : public QGLWidget
+{
+ Q_OBJECT
+
+public:
+ GLWidget(Helper *helper, QWidget *parent);
+
+public slots:
+ void animate();
+
+protected:
+ void paintEvent(QPaintEvent *event);
+
+private:
+ Helper *helper;
+ int elapsed;
+};
+//! [0]
+
+#endif
diff --git a/examples/opengl/2dpainting/helper.cpp b/examples/opengl/2dpainting/helper.cpp
new file mode 100644
index 0000000..8796d87
--- /dev/null
+++ b/examples/opengl/2dpainting/helper.cpp
@@ -0,0 +1,91 @@
+/****************************************************************************
+**
+** 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>
+#include "helper.h"
+
+//! [0]
+Helper::Helper()
+{
+ QLinearGradient gradient(QPointF(50, -20), QPointF(80, 20));
+ gradient.setColorAt(0.0, Qt::white);
+ gradient.setColorAt(1.0, QColor(0xa6, 0xce, 0x39));
+
+ background = QBrush(QColor(64, 32, 64));
+ circleBrush = QBrush(gradient);
+ circlePen = QPen(Qt::black);
+ circlePen.setWidth(1);
+ textPen = QPen(Qt::white);
+ textFont.setPixelSize(50);
+}
+//! [0]
+
+//! [1]
+void Helper::paint(QPainter *painter, QPaintEvent *event, int elapsed)
+{
+ painter->fillRect(event->rect(), background);
+ painter->translate(100, 100);
+//! [1]
+
+//! [2]
+ painter->save();
+ painter->setBrush(circleBrush);
+ painter->setPen(circlePen);
+ painter->rotate(elapsed * 0.030);
+
+ qreal r = elapsed/1000.0;
+ int n = 30;
+ for (int i = 0; i < n; ++i) {
+ painter->rotate(30);
+ qreal radius = 0 + 120.0*((i+r)/n);
+ qreal circleRadius = 1 + ((i+r)/n)*20;
+ painter->drawEllipse(QRectF(radius, -circleRadius,
+ circleRadius*2, circleRadius*2));
+ }
+ painter->restore();
+//! [2]
+
+//! [3]
+ painter->setPen(textPen);
+ painter->setFont(textFont);
+ painter->drawText(QRect(-50, -50, 100, 100), Qt::AlignCenter, "Qt");
+}
+//! [3]
diff --git a/examples/opengl/2dpainting/helper.h b/examples/opengl/2dpainting/helper.h
new file mode 100644
index 0000000..1d63cc9
--- /dev/null
+++ b/examples/opengl/2dpainting/helper.h
@@ -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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef HELPER_H
+#define HELPER_H
+
+#include <QBrush>
+#include <QFont>
+#include <QPen>
+
+QT_BEGIN_NAMESPACE
+class QPainter;
+class QPaintEvent;
+QT_END_NAMESPACE
+
+//! [0]
+class Helper
+{
+public:
+ Helper();
+
+public:
+ void paint(QPainter *painter, QPaintEvent *event, int elapsed);
+
+private:
+ QBrush background;
+ QBrush circleBrush;
+ QFont textFont;
+ QPen circlePen;
+ QPen textPen;
+};
+//! [0]
+
+#endif
diff --git a/examples/opengl/2dpainting/main.cpp b/examples/opengl/2dpainting/main.cpp
new file mode 100644
index 0000000..58c9705
--- /dev/null
+++ b/examples/opengl/2dpainting/main.cpp
@@ -0,0 +1,51 @@
+/****************************************************************************
+**
+** 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 <QApplication>
+#include "window.h"
+
+int main(int argc, char *argv[])
+{
+ QApplication app(argc, argv);
+ Window window;
+ window.show();
+ return app.exec();
+}
diff --git a/examples/opengl/2dpainting/widget.cpp b/examples/opengl/2dpainting/widget.cpp
new file mode 100644
index 0000000..89d4608
--- /dev/null
+++ b/examples/opengl/2dpainting/widget.cpp
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** 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>
+#include "widget.h"
+#include "helper.h"
+
+
+//! [0]
+Widget::Widget(Helper *helper, QWidget *parent)
+ : QWidget(parent), helper(helper)
+{
+ elapsed = 0;
+ setFixedSize(200, 200);
+}
+//! [0]
+
+//! [1]
+void Widget::animate()
+{
+ elapsed = (elapsed + qobject_cast<QTimer*>(sender())->interval()) % 1000;
+ repaint();
+}
+//! [1]
+
+//! [2]
+void Widget::paintEvent(QPaintEvent *event)
+{
+ QPainter painter;
+ painter.begin(this);
+ painter.setRenderHint(QPainter::Antialiasing);
+ helper->paint(&painter, event, elapsed);
+ painter.end();
+}
+//! [2]
diff --git a/examples/opengl/2dpainting/widget.h b/examples/opengl/2dpainting/widget.h
new file mode 100644
index 0000000..f88c676
--- /dev/null
+++ b/examples/opengl/2dpainting/widget.h
@@ -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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef WIDGET_H
+#define WIDGET_H
+
+#include <QWidget>
+
+//! [0]
+class Helper;
+QT_BEGIN_NAMESPACE
+class QPaintEvent;
+QT_END_NAMESPACE
+
+class Widget : public QWidget
+{
+ Q_OBJECT
+
+public:
+ Widget(Helper *helper, QWidget *parent);
+
+public slots:
+ void animate();
+
+protected:
+ void paintEvent(QPaintEvent *event);
+
+private:
+ Helper *helper;
+ int elapsed;
+};
+//! [0]
+
+#endif
diff --git a/examples/opengl/2dpainting/window.cpp b/examples/opengl/2dpainting/window.cpp
new file mode 100644
index 0000000..f55e90e
--- /dev/null
+++ b/examples/opengl/2dpainting/window.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>
+#include "glwidget.h"
+#include "widget.h"
+#include "window.h"
+
+//! [0]
+Window::Window()
+ : QWidget()
+{
+ Widget *native = new Widget(&helper, this);
+ GLWidget *openGL = new GLWidget(&helper, this);
+ QLabel *nativeLabel = new QLabel(tr("Native"));
+ nativeLabel->setAlignment(Qt::AlignHCenter);
+ QLabel *openGLLabel = new QLabel(tr("OpenGL"));
+ openGLLabel->setAlignment(Qt::AlignHCenter);
+
+ QGridLayout *layout = new QGridLayout;
+ layout->addWidget(native, 0, 0);
+ layout->addWidget(openGL, 0, 1);
+ layout->addWidget(nativeLabel, 1, 0);
+ layout->addWidget(openGLLabel, 1, 1);
+ setLayout(layout);
+
+ QTimer *timer = new QTimer(this);
+ connect(timer, SIGNAL(timeout()), native, SLOT(animate()));
+ connect(timer, SIGNAL(timeout()), openGL, SLOT(animate()));
+ timer->start(50);
+
+ setWindowTitle(tr("2D Painting on Native and OpenGL Widgets"));
+}
+//! [0]
diff --git a/examples/opengl/2dpainting/window.h b/examples/opengl/2dpainting/window.h
new file mode 100644
index 0000000..84a4440
--- /dev/null
+++ b/examples/opengl/2dpainting/window.h
@@ -0,0 +1,67 @@
+/****************************************************************************
+**
+** 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef WINDOW_H
+#define WINDOW_H
+
+#include <QWidget>
+
+#include "helper.h"
+
+QT_BEGIN_NAMESPACE
+class QLabel;
+class QWidget;
+QT_END_NAMESPACE
+
+//! [0]
+class Window : public QWidget
+{
+ Q_OBJECT
+
+public:
+ Window();
+
+private:
+ Helper helper;
+};
+//! [0]
+
+#endif