a2446c0eed
For qgraphicsitem_cast to work correctly with custom items, one must reimplement the type() function for each custom QGraphicsItem subclass. Do that in the example code. Fixes: QTBUG-7357 Change-Id: Ibf221817908355f0347cddfc46747b6955958f5f Reviewed-by: Andy Shaw <andy.shaw@qt.io>
87 lines
3.1 KiB
C++
87 lines
3.1 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the examples of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** Software or, alternatively, in accordance with the terms contained in
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** "Redistribution and use in source and binary forms, with or without
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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****************************************************************************/
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#ifndef IMAGEITEM_H
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#define IMAGEITEM_H
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#include <QtCore>
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#include <QtWidgets/QGraphicsPixmapItem>
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//! [0]
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class ImageItem : public QObject, public QGraphicsPixmapItem
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{
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Q_OBJECT
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public:
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enum { Type = UserType + 1 };
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ImageItem(int id, const QPixmap &pixmap, QGraphicsItem *parent = nullptr);
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int type() const override { return Type; }
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void adjust();
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int id() const;
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protected:
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void hoverEnterEvent(QGraphicsSceneHoverEvent *event) override;
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void hoverLeaveEvent(QGraphicsSceneHoverEvent *event) override;
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private slots:
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void setFrame(int frame);
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void updateItemPosition();
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private:
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QTimeLine timeLine;
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int recordId;
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double z;
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};
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//! [0]
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#endif
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