Long live Qt 4.5!

6 files changed, 427 insertions, 0 deletions

diff --git a/examples/painting/concentriccircles/circlewidget.cpp b/examples/painting/concentriccircles/circlewidget.cpp
new file mode 100644
index 0000000000..ab62a88c54
--- /dev/null
+++ b/examples/painting/concentriccircles/circlewidget.cpp
@@ -0,0 +1,125 @@
+/****************************************************************************
+**
+** 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 "circlewidget.h"
+
+#include <stdlib.h>
+
+//! [0]
+CircleWidget::CircleWidget(QWidget *parent)
+    : QWidget(parent)
+{
+    floatBased = false;
+    antialiased = false;
+    frameNo = 0;
+
+    setBackgroundRole(QPalette::Base);
+    setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+}
+//! [0]
+
+//! [1]
+void CircleWidget::setFloatBased(bool floatBased)
+{
+    this->floatBased = floatBased;
+    update();
+}
+//! [1]
+
+//! [2]
+void CircleWidget::setAntialiased(bool antialiased)
+{
+    this->antialiased = antialiased;
+    update();
+}
+//! [2]
+
+//! [3]
+QSize CircleWidget::minimumSizeHint() const
+{
+    return QSize(50, 50);
+}
+//! [3]
+
+//! [4]
+QSize CircleWidget::sizeHint() const
+{
+    return QSize(180, 180);
+}
+//! [4]
+
+//! [5]
+void CircleWidget::nextAnimationFrame()
+{
+    ++frameNo;
+    update();
+}
+//! [5]
+
+//! [6]
+void CircleWidget::paintEvent(QPaintEvent *)
+{
+    QPainter painter(this);
+    painter.setRenderHint(QPainter::Antialiasing, antialiased);
+    painter.translate(width() / 2, height() / 2);
+//! [6]
+
+//! [7]
+    for (int diameter = 0; diameter < 256; diameter += 9) {
+        int delta = abs((frameNo % 128) - diameter / 2);
+        int alpha = 255 - (delta * delta) / 4 - diameter;
+//! [7] //! [8]
+        if (alpha > 0) {
+            painter.setPen(QPen(QColor(0, diameter / 2, 127, alpha), 3));
+
+            if (floatBased) {
+                painter.drawEllipse(QRectF(-diameter / 2.0, -diameter / 2.0,
+                                           diameter, diameter));
+            } else {
+                painter.drawEllipse(QRect(-diameter / 2, -diameter / 2,
+                                          diameter, diameter));
+            }
+        }
+    }
+}
+//! [8]
diff --git a/examples/painting/concentriccircles/circlewidget.h b/examples/painting/concentriccircles/circlewidget.h
new file mode 100644
index 0000000000..c5acaa89de
--- /dev/null
+++ b/examples/painting/concentriccircles/circlewidget.h
@@ -0,0 +1,74 @@
+/****************************************************************************
+**
+** 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 CIRCLEWIDGET_H
+#define CIRCLEWIDGET_H
+
+#include <QWidget>
+
+//! [0]
+class CircleWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    CircleWidget(QWidget *parent = 0);
+
+    void setFloatBased(bool floatBased);
+    void setAntialiased(bool antialiased);
+
+    QSize minimumSizeHint() const;
+    QSize sizeHint() const;
+
+public slots:
+    void nextAnimationFrame();
+
+protected:
+    void paintEvent(QPaintEvent *event);
+
+private:
+    bool floatBased;
+    bool antialiased;
+    int frameNo;
+};
+//! [0]
+
+#endif
diff --git a/examples/painting/concentriccircles/concentriccircles.pro b/examples/painting/concentriccircles/concentriccircles.pro
new file mode 100644
index 0000000000..093ea1c9d2
--- /dev/null
+++ b/examples/painting/concentriccircles/concentriccircles.pro
@@ -0,0 +1,11 @@
+HEADERS       = circlewidget.h \
+                window.h
+SOURCES       = circlewidget.cpp \
+                main.cpp \
+                window.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/painting/concentriccircles
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS concentriccircles.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/painting/concentriccircles
+INSTALLS += target sources
diff --git a/examples/painting/concentriccircles/main.cpp b/examples/painting/concentriccircles/main.cpp
new file mode 100644
index 0000000000..fa8b0abb9d
--- /dev/null
+++ b/examples/painting/concentriccircles/main.cpp
@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** 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/painting/concentriccircles/window.cpp b/examples/painting/concentriccircles/window.cpp
new file mode 100644
index 0000000000..dd5e6e5789
--- /dev/null
+++ b/examples/painting/concentriccircles/window.cpp
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** 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 "circlewidget.h"
+#include "window.h"
+
+//! [0]
+Window::Window()
+{
+    aliasedLabel = createLabel(tr("Aliased"));
+    antialiasedLabel = createLabel(tr("Antialiased"));
+    intLabel = createLabel(tr("Int"));
+    floatLabel = createLabel(tr("Float"));
+
+    QGridLayout *layout = new QGridLayout;
+    layout->addWidget(aliasedLabel, 0, 1);
+    layout->addWidget(antialiasedLabel, 0, 2);
+    layout->addWidget(intLabel, 1, 0);
+    layout->addWidget(floatLabel, 2, 0);
+//! [0]
+
+//! [1]
+    QTimer *timer = new QTimer(this);
+
+    for (int i = 0; i < 2; ++i) {
+        for (int j = 0; j < 2; ++j) {
+            circleWidgets[i][j] = new CircleWidget;
+            circleWidgets[i][j]->setAntialiased(j != 0);
+            circleWidgets[i][j]->setFloatBased(i != 0);
+
+            connect(timer, SIGNAL(timeout()),
+                    circleWidgets[i][j], SLOT(nextAnimationFrame()));
+
+            layout->addWidget(circleWidgets[i][j], i + 1, j + 1);
+        }
+    }
+//! [1] //! [2]
+    timer->start(100);
+    setLayout(layout);
+
+    setWindowTitle(tr("Concentric Circles"));
+}
+//! [2]
+
+//! [3]
+QLabel *Window::createLabel(const QString &text)
+{
+    QLabel *label = new QLabel(text);
+    label->setAlignment(Qt::AlignCenter);
+    label->setMargin(2);
+    label->setFrameStyle(QFrame::Box | QFrame::Sunken);
+    return label;
+}
+//! [3]
diff --git a/examples/painting/concentriccircles/window.h b/examples/painting/concentriccircles/window.h
new file mode 100644
index 0000000000..2b3ad67cbb
--- /dev/null
+++ b/examples/painting/concentriccircles/window.h
@@ -0,0 +1,71 @@
+/****************************************************************************
+**
+** 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>
+
+QT_BEGIN_NAMESPACE
+class QLabel;
+QT_END_NAMESPACE
+class CircleWidget;
+
+//! [0]
+class Window : public QWidget
+{
+    Q_OBJECT
+
+public:
+    Window();
+
+private:
+    QLabel *createLabel(const QString &text);
+
+    QLabel *aliasedLabel;
+    QLabel *antialiasedLabel;
+    QLabel *intLabel;
+    QLabel *floatLabel;
+    CircleWidget *circleWidgets[2][2];
+};
+//! [0]
+
+#endif