source: trunk/src/declarative/graphicsitems/qdeclarativepainteditem_p.h

/****************************************************************************
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
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** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
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** Alternatively, this file may be used under the terms of the GNU
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#ifndef QDECLARATIVEIMAGEITEM_H
#define QDECLARATIVEIMAGEITEM_H

#include "qdeclarativeitem.h"

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Declarative)

class QDeclarativePaintedItemPrivate;
class Q_AUTOTEST_EXPORT QDeclarativePaintedItem : public QDeclarativeItem
{
    Q_OBJECT

    Q_PROPERTY(QSize contentsSize READ contentsSize WRITE setContentsSize NOTIFY contentsSizeChanged)
    Q_PROPERTY(QColor fillColor READ fillColor WRITE setFillColor NOTIFY fillColorChanged)
    Q_PROPERTY(int pixelCacheSize READ pixelCacheSize WRITE setPixelCacheSize)
    Q_PROPERTY(bool smoothCache READ smoothCache WRITE setSmoothCache)
    Q_PROPERTY(qreal contentsScale READ contentsScale WRITE setContentsScale NOTIFY contentsScaleChanged)


public:
    QDeclarativePaintedItem(QDeclarativeItem *parent=0);
    ~QDeclarativePaintedItem();

    QSize contentsSize() const;
    void setContentsSize(const QSize &);

    qreal contentsScale() const;
    void setContentsScale(qreal);

    int pixelCacheSize() const;
    void setPixelCacheSize(int pixels);

    bool smoothCache() const;
    void setSmoothCache(bool on);

    QColor fillColor() const;
    void setFillColor(const QColor&);

    void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *);

protected:
    QDeclarativePaintedItem(QDeclarativePaintedItemPrivate &dd, QDeclarativeItem *parent);

    virtual void drawContents(QPainter *p, const QRect &) = 0;
    virtual void geometryChanged(const QRectF &newGeometry,
                                 const QRectF &oldGeometry);
    virtual QVariant itemChange(GraphicsItemChange change,
                                const QVariant &value);

    void setCacheFrozen(bool);
    QRectF boundingRect() const;

Q_SIGNALS:
    void fillColorChanged();
    void contentsSizeChanged();
    void contentsScaleChanged();

protected Q_SLOTS:
    void dirtyCache(const QRect &);
    void clearCache();

private:
    Q_DISABLE_COPY(QDeclarativePaintedItem)
    Q_DECLARE_PRIVATE_D(QGraphicsItem::d_ptr.data(), QDeclarativePaintedItem)
};

QT_END_NAMESPACE

QML_DECLARE_TYPE(QDeclarativePaintedItem)

QT_END_HEADER

#endif