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Diffstat (limited to 'tests/benchmarks/qgraphicsview/benchapps/scrolltest/main.cpp')
| -rw-r--r-- | tests/benchmarks/qgraphicsview/benchapps/scrolltest/main.cpp | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/tests/benchmarks/qgraphicsview/benchapps/scrolltest/main.cpp b/tests/benchmarks/qgraphicsview/benchapps/scrolltest/main.cpp new file mode 100644 index 0000000..669d2cf --- /dev/null +++ b/tests/benchmarks/qgraphicsview/benchapps/scrolltest/main.cpp @@ -0,0 +1,146 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 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 "valgrind/callgrind.h" + +class ItemMover : public QObject +{ + Q_OBJECT +public: + ItemMover(QGraphicsItem *item) + : _item(item) + { + startTimer(0); + } + +protected: + void timerEvent(QTimerEvent *event) + { + _item->moveBy(-1, 0); + } + +private: + QGraphicsItem *_item; +}; + +class ClipItem : public QGraphicsRectItem +{ +public: + ClipItem(qreal x, qreal y, qreal w, qreal h, const QPen &pen, const QBrush &brush) + : QGraphicsRectItem(x, y, w, h) + { + setPen(pen); + setBrush(brush); + } + + QPainterPath shape() const + { + QPainterPath path; + path.addRect(rect()); + return path; + } +}; + +class CountView : public QGraphicsView +{ +protected: + void paintEvent(QPaintEvent *event) + { + static int n = 0; + if (n) + CALLGRIND_START_INSTRUMENTATION + QGraphicsView::paintEvent(event); + if (n) + CALLGRIND_STOP_INSTRUMENTATION + if (++n == 500) + qApp->quit(); + } +}; + +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + + QGraphicsScene scene; + scene.setItemIndexMethod(QGraphicsScene::NoIndex); + + ClipItem *clipItem = new ClipItem(0, 0, 100, 100, QPen(), QBrush(Qt::blue)); + clipItem->setFlag(QGraphicsItem::ItemClipsChildrenToShape); + clipItem->setData(0, "clipItem"); + scene.addItem(clipItem); + + QGraphicsRectItem *scrollItem = scene.addRect(0, 0, 10, 10, QPen(Qt::NoPen), QBrush(Qt::NoBrush)); + scrollItem->setParentItem(clipItem); + scrollItem->setFlag(QGraphicsItem::ItemIsMovable); + scrollItem->setData(0, "scrollItem"); + + for (int y = 0; y < 25; ++y) { + for (int x = 0; x < 25; ++x) { + ClipItem *rect = new ClipItem(0, 0, 90, 20, QPen(Qt::NoPen), QBrush(Qt::green)); + rect->setParentItem(scrollItem); + rect->setPos(x * 95, y * 25); + rect->setData(0, qPrintable(QString("rect %1 %2").arg(x).arg(y))); + rect->setFlag(QGraphicsItem::ItemClipsChildrenToShape); + + QGraphicsEllipseItem *ellipse = new QGraphicsEllipseItem(-5, -5, 10, 10); + ellipse->setPen(QPen(Qt::NoPen)); + ellipse->setBrush(QBrush(Qt::yellow)); + ellipse->setParentItem(rect); + ellipse->setData(0, qPrintable(QString("ellipse %1 %2").arg(x).arg(y))); + } + } + + scrollItem->setRect(scrollItem->childrenBoundingRect()); + +#if 0 + ItemMover mover(scrollItem); +#endif + + CountView view; + view.setScene(&scene); + view.setSceneRect(-25, -25, 150, 150); + view.resize(300, 300); + view.show(); + + return app.exec(); +} + +#include "main.moc" |