ff1039c217
According to QUIP-18 [1], all tests file should be LicenseRef-Qt-Commercial OR GPL-3.0-only [1]: https://contribute.qt-project.org/quips/18 Pick-to: 6.7 Task-number: QTBUG-121787 Change-Id: I9657df5d660820e56c96d511ea49d321c54682e8 Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
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#include <QApplication>
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#include <QGraphicsView>
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#include <QGraphicsScene>
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#include <QGraphicsItem>
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#include <QMessageBox>
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class MyObject : public QObject
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{
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public:
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MyObject(QGraphicsItem *i, QObject *parent = nullptr) : QObject(parent), itemToToggle(i)
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{
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startTimer(500);
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}
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protected:
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void timerEvent(QTimerEvent *)
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{
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itemToToggle->setVisible(!itemToToggle->isVisible());
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}
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private:
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QGraphicsItem *itemToToggle;
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};
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int main(int argc, char *argv[])
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{
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QApplication a(argc, argv);
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QGraphicsView gv;
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QGraphicsScene *scene = new QGraphicsScene(&gv);
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gv.setScene(scene);
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QGraphicsItem *rect = scene->addRect(0, 0, 200, 200, QPen(Qt::NoPen), QBrush(Qt::yellow));
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rect->setFlag(QGraphicsItem::ItemHasNoContents);
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rect->setFlag(QGraphicsItem::ItemClipsChildrenToShape);
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QGraphicsItem *childRect = scene->addRect(0, 0, 100, 100, QPen(Qt::NoPen), QBrush(Qt::red));
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childRect->setParentItem(rect);
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gv.show();
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MyObject o(rect);
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QMessageBox::information(0, "What you should see",
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"The red rectangle should toggle visibility, so you should see it flash on and off");
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return a.exec();
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}
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