- Qt 5.5
- Qt Widgets
- Embedded Dialogs
- customproxy.h Example File
- Qt 5.5.1 Reference Documentation

# customproxy.h Example File

graphicsview/embeddeddialogs/customproxy.h

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the demonstration applications of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:LGPL21$
    ** Commercial License Usage
    ** Licensees holding valid commercial Qt licenses may use this file in
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    **
    ** GNU Lesser General Public License Usage
    ** Alternatively, this file may be used under the terms of the GNU Lesser
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    ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
    ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
    ** following information to ensure the GNU Lesser General Public License
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    #ifndef CUSTOMPROXY_H
    #define CUSTOMPROXY_H

    #include <QTimeLine>
    #include <QGraphicsProxyWidget>

    class CustomProxy : public QGraphicsProxyWidget
    {
        Q_OBJECT

    public:
        explicit CustomProxy(QGraphicsItem *parent = 0, Qt::WindowFlags wFlags = 0);

        QRectF boundingRect() const Q_DECL_OVERRIDE;
        void paintWindowFrame(QPainter *painter, const QStyleOptionGraphicsItem *option,
                              QWidget *widget) Q_DECL_OVERRIDE;

    protected:
        void hoverEnterEvent(QGraphicsSceneHoverEvent *event) Q_DECL_OVERRIDE;
        void hoverLeaveEvent(QGraphicsSceneHoverEvent *event) Q_DECL_OVERRIDE;
        bool sceneEventFilter(QGraphicsItem *watched, QEvent *event) Q_DECL_OVERRIDE;
        QVariant itemChange(GraphicsItemChange change, const QVariant &value) Q_DECL_OVERRIDE;

    private slots:
        void updateStep(qreal step);
        void stateChanged(QTimeLine::State);
        void zoomIn();
        void zoomOut();

    private:
        QTimeLine *timeLine;
        bool popupShown;
        QGraphicsItem *currentPopup;
    };

    #endif // CUSTOMPROXY_H