Long live Qt 4.5!

1 files changed, 209 insertions, 0 deletions

diff --git a/examples/painting/basicdrawing/renderarea.cpp b/examples/painting/basicdrawing/renderarea.cpp
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+++ b/examples/painting/basicdrawing/renderarea.cpp
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+/****************************************************************************
+**
+** 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 "renderarea.h"
+
+//! [0]
+RenderArea::RenderArea(QWidget *parent)
+    : QWidget(parent)
+{
+    shape = Polygon;
+    antialiased = false;
+    transformed = false;
+    pixmap.load(":/images/qt-logo.png");
+
+    setBackgroundRole(QPalette::Base);
+    setAutoFillBackground(true);
+}
+//! [0]
+
+//! [1]
+QSize RenderArea::minimumSizeHint() const
+{
+    return QSize(100, 100);
+}
+//! [1]
+
+//! [2]
+QSize RenderArea::sizeHint() const
+{
+    return QSize(400, 200);
+}
+//! [2]
+
+//! [3]
+void RenderArea::setShape(Shape shape)
+{
+    this->shape = shape;
+    update();
+}
+//! [3]
+
+//! [4]
+void RenderArea::setPen(const QPen &pen)
+{
+    this->pen = pen;
+    update();
+}
+//! [4]
+
+//! [5]
+void RenderArea::setBrush(const QBrush &brush)
+{
+    this->brush = brush;
+    update();
+}
+//! [5]
+
+//! [6]
+void RenderArea::setAntialiased(bool antialiased)
+{
+    this->antialiased = antialiased;
+    update();
+}
+//! [6]
+
+//! [7]
+void RenderArea::setTransformed(bool transformed)
+{
+    this->transformed = transformed;
+    update();
+}
+//! [7]
+
+//! [8]
+void RenderArea::paintEvent(QPaintEvent * /* event */)
+{
+    static const QPoint points[4] = {
+        QPoint(10, 80),
+        QPoint(20, 10),
+        QPoint(80, 30),
+        QPoint(90, 70)
+    };
+
+    QRect rect(10, 20, 80, 60);
+
+    QPainterPath path;
+    path.moveTo(20, 80);
+    path.lineTo(20, 30);
+    path.cubicTo(80, 0, 50, 50, 80, 80);
+
+    int startAngle = 20 * 16;
+    int arcLength = 120 * 16;
+//! [8]
+
+//! [9]
+    QPainter painter(this);
+    painter.setPen(pen);
+    painter.setBrush(brush);
+    if (antialiased) {
+        painter.setRenderHint(QPainter::Antialiasing, true);
+//! [9]
+        painter.translate(+0.5, +0.5);
+    }
+
+//! [10]
+    for (int x = 0; x < width(); x += 100) {
+        for (int y = 0; y < height(); y += 100) {
+            painter.save();
+            painter.translate(x, y);
+//! [10] //! [11]
+            if (transformed) {
+                painter.translate(50, 50);
+                painter.rotate(60.0);
+                painter.scale(0.6, 0.9);
+                painter.translate(-50, -50);
+            }
+//! [11]
+
+//! [12]
+            switch (shape) {
+            case Line:
+                painter.drawLine(rect.bottomLeft(), rect.topRight());
+                break;
+            case Points:
+                painter.drawPoints(points, 4);
+                break;
+            case Polyline:
+                painter.drawPolyline(points, 4);
+                break;
+            case Polygon:
+                painter.drawPolygon(points, 4);
+                break;
+            case Rect:
+                painter.drawRect(rect);
+                break;
+            case RoundedRect:
+                painter.drawRoundedRect(rect, 25, 25, Qt::RelativeSize);
+                break;
+            case Ellipse:
+                painter.drawEllipse(rect);
+                break;
+            case Arc:
+                painter.drawArc(rect, startAngle, arcLength);
+                break;
+            case Chord:
+                painter.drawChord(rect, startAngle, arcLength);
+                break;
+            case Pie:
+                painter.drawPie(rect, startAngle, arcLength);
+                break;
+            case Path:
+                painter.drawPath(path);
+                break;
+            case Text:
+                painter.drawText(rect, Qt::AlignCenter, tr("Qt by\nQt Software"));
+                break;
+            case Pixmap:
+                painter.drawPixmap(10, 10, pixmap);
+            }
+//! [12] //! [13]
+            painter.restore();
+        }
+    }
+
+    painter.setPen(palette().dark().color());
+    painter.setBrush(Qt::NoBrush);
+    painter.drawRect(QRect(0, 0, width() - 1, height() - 1));
+}
+//! [13]