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144 lines
4.1 KiB
C++
144 lines
4.1 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "chiptester.h"
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#include "chip.h"
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#include <QtGui>
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#ifndef QT_NO_OPENGL
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#include <QtOpenGL>
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#endif
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ChipTester::ChipTester(QWidget *parent)
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: QGraphicsView(parent),
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npaints(0)
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{
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resize(400, 300);
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setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setFrameStyle(0);
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setTransformationAnchor(NoAnchor);
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populateScene();
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setScene(scene);
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setWindowTitle(tr("Chip Demo"));
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}
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void ChipTester::setAntialias(bool enabled)
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{
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setRenderHint(QPainter::Antialiasing, enabled);
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}
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void ChipTester::setOpenGL(bool enabled)
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{
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#ifndef QT_NO_OPENGL
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setViewport(enabled ? new QGLWidget(QGLFormat(QGL::SampleBuffers)) : 0);
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#endif
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}
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void ChipTester::setOperation(Operation operation)
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{
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this->operation = operation;
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}
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void ChipTester::runBenchmark()
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{
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npaints = 0;
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timerId = startTimer(0);
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stopWatch.start();
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eventLoop.exec();
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killTimer(timerId);
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}
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void ChipTester::paintEvent(QPaintEvent *event)
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{
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QGraphicsView::paintEvent(event);
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if (++npaints == 50)
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eventLoop.quit();
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}
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void ChipTester::timerEvent(QTimerEvent *)
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{
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switch (operation) {
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case Rotate360:
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rotate(1);
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break;
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case ZoomInOut: {
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qreal s = 0.05 + (npaints / 20.0);
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setTransform(QTransform().scale(s, s));
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break;
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}
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case Translate: {
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int offset = horizontalScrollBar()->minimum()
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+ (npaints % (horizontalScrollBar()->maximum() - horizontalScrollBar()->minimum()));
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horizontalScrollBar()->setValue(offset);
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break;
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}
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}
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}
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void ChipTester::populateScene()
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{
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scene = new QGraphicsScene;
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QImage image(":/qt4logo.png");
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// Populate scene
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int xx = 0;
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int nitems = 0;
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for (int i = -1100; i < 1100; i += 110) {
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++xx;
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int yy = 0;
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for (int j = -700; j < 700; j += 70) {
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++yy;
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qreal x = (i + 1100) / 2200.0;
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qreal y = (j + 700) / 1400.0;
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QColor color(image.pixel(int(image.width() * x), int(image.height() * y)));
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QGraphicsItem *item = new Chip(color, xx, yy);
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item->setPos(QPointF(i, j));
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scene->addItem(item);
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++nitems;
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}
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}
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}
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