05fc3aef53
Replace the current license disclaimer in files by a SPDX-License-Identifier. Files that have to be modified by hand are modified. License files are organized under LICENSES directory. Task-number: QTBUG-67283 Change-Id: Id880c92784c40f3bbde861c0d93f58151c18b9f1 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Lars Knoll <lars.knoll@qt.io> Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
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 WITH Qt-GPL-exception-1.0
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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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