examples/painting/svggenerator/displaywidget.cpp
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/painting/svggenerator/displaywidget.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,149 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@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();
+}