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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 "displaywidget.h"
+
+DisplayWidget::DisplayWidget(QWidget *parent)
+ : QWidget(parent)
+{
+ QPainterPath car;
+ QPainterPath house;
+
+ QFile file(":resources/shapes.dat");
+ file.open(QFile::ReadOnly);
+ QDataStream stream(&file);
+ stream >> car >> house >> tree >> moon;
+ file.close();
+
+ shapeMap[Car] = car;
+ shapeMap[House] = house;
+
+ background = Sky;
+ shapeColor = Qt::darkYellow;
+ shape = House;
+}
+
+//! [paint event]
+void DisplayWidget::paintEvent(QPaintEvent *event)
+{
+ QPainter painter;
+ painter.begin(this);
+ painter.setRenderHint(QPainter::Antialiasing);
+ paint(painter);
+ painter.end();
+}
+//! [paint event]
+
+//! [paint function]
+void DisplayWidget::paint(QPainter &painter)
+{
+//![paint picture]
+ painter.setClipRect(QRect(0, 0, 200, 200));
+ painter.setPen(Qt::NoPen);
+
+ switch (background) {
+ case Sky:
+ default:
+ painter.fillRect(QRect(0, 0, 200, 200), Qt::darkBlue);
+ painter.translate(145, 10);
+ painter.setBrush(Qt::white);
+ painter.drawPath(moon);
+ painter.translate(-145, -10);
+ break;
+ case Trees:
+ {
+ painter.fillRect(QRect(0, 0, 200, 200), Qt::darkGreen);
+ painter.setBrush(Qt::green);
+ painter.setPen(Qt::black);
+ for (int y = -55, row = 0; y < 200; y += 50, ++row) {
+ int xs;
+ if (row == 2 || row == 3)
+ xs = 150;
+ else
+ xs = 50;
+ for (int x = 0; x < 200; x += xs) {
+ painter.save();
+ painter.translate(x, y);
+ painter.drawPath(tree);
+ painter.restore();
+ }
+ }
+ break;
+ }
+ case Road:
+ painter.fillRect(QRect(0, 0, 200, 200), Qt::gray);
+ painter.setPen(QPen(Qt::white, 4, Qt::DashLine));
+ painter.drawLine(QLine(0, 35, 200, 35));
+ painter.drawLine(QLine(0, 165, 200, 165));
+ break;
+ }
+
+ painter.setBrush(shapeColor);
+ painter.setPen(Qt::black);
+ painter.translate(100, 100);
+ painter.drawPath(shapeMap[shape]);
+//![paint picture]
+}
+//! [paint function]
+
+QColor DisplayWidget::color() const
+{
+ return shapeColor;
+}
+
+void DisplayWidget::setBackground(Background background)
+{
+ this->background = background;
+ update();
+}
+
+void DisplayWidget::setColor(const QColor &color)
+{
+ this->shapeColor = color;
+ update();
+}
+
+void DisplayWidget::setShape(Shape shape)
+{
+ this->shape = shape;
+ update();
+}