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/****************************************************************************
**
** 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();
}
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