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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite 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 "chiptester.h"
#include "chip.h"
#include <QtGui>
#ifndef QT_NO_OPENGL
#include <QtOpenGL>
#endif
ChipTester::ChipTester(QWidget *parent)
: QGraphicsView(parent),
npaints(0)
{
resize(400, 300);
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setFrameStyle(0);
setTransformationAnchor(NoAnchor);
populateScene();
setScene(scene);
setWindowTitle(tr("Chip Demo"));
}
void ChipTester::setAntialias(bool enabled)
{
setRenderHint(QPainter::Antialiasing, enabled);
}
void ChipTester::setOpenGL(bool enabled)
{
#ifndef QT_NO_OPENGL
setViewport(enabled ? new QGLWidget(QGLFormat(QGL::SampleBuffers)) : 0);
#endif
}
void ChipTester::setOperation(Operation operation)
{
this->operation = operation;
}
void ChipTester::runBenchmark()
{
npaints = 0;
timerId = startTimer(0);
stopWatch.start();
eventLoop.exec();
killTimer(timerId);
}
void ChipTester::paintEvent(QPaintEvent *event)
{
QGraphicsView::paintEvent(event);
if (++npaints == 50)
eventLoop.quit();
}
void ChipTester::timerEvent(QTimerEvent *)
{
switch (operation) {
case Rotate360:
rotate(1);
break;
case ZoomInOut: {
qreal s = 0.05 + (npaints / 20.0);
setTransform(QTransform().scale(s, s));
break;
}
case Translate: {
int offset = horizontalScrollBar()->minimum()
+ (npaints % (horizontalScrollBar()->maximum() - horizontalScrollBar()->minimum()));
horizontalScrollBar()->setValue(offset);
break;
}
}
}
void ChipTester::populateScene()
{
scene = new QGraphicsScene;
QImage image(":/qt4logo.png");
// Populate scene
int xx = 0;
int nitems = 0;
for (int i = -1100; i < 1100; i += 110) {
++xx;
int yy = 0;
for (int j = -700; j < 700; j += 70) {
++yy;
qreal x = (i + 1100) / 2200.0;
qreal y = (j + 700) / 1400.0;
QColor color(image.pixel(int(image.width() * x), int(image.height() * y)));
QGraphicsItem *item = new Chip(color, xx, yy);
item->setPos(QPointF(i, j));
scene->addItem(item);
++nitems;
}
}
}
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