qt-everywhere-src-5.15.1/qtdeclarative/src/quick/items/qquickimage_p.h

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#ifndef QQUICKIMAGE_P_H
#define QQUICKIMAGE_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include "qquickimagebase_p.h"
#include <QtQuick/qsgtextureprovider.h>

QT_BEGIN_NAMESPACE

class QQuickImagePrivate;
class Q_QUICK_PRIVATE_EXPORT QQuickImage : public QQuickImageBase
{
    Q_OBJECT

    Q_PROPERTY(FillMode fillMode READ fillMode WRITE setFillMode NOTIFY fillModeChanged)
    Q_PROPERTY(qreal paintedWidth READ paintedWidth NOTIFY paintedGeometryChanged)
    Q_PROPERTY(qreal paintedHeight READ paintedHeight NOTIFY paintedGeometryChanged)
    Q_PROPERTY(HAlignment horizontalAlignment READ horizontalAlignment WRITE setHorizontalAlignment NOTIFY horizontalAlignmentChanged)
    Q_PROPERTY(VAlignment verticalAlignment READ verticalAlignment WRITE setVerticalAlignment NOTIFY verticalAlignmentChanged)
    Q_PROPERTY(bool mipmap READ mipmap WRITE setMipmap NOTIFY mipmapChanged REVISION 3)
    Q_PROPERTY(bool autoTransform READ autoTransform WRITE setAutoTransform NOTIFY autoTransformChanged REVISION 5)
    Q_PROPERTY(QRectF sourceClipRect READ sourceClipRect WRITE setSourceClipRect RESET resetSourceClipRect NOTIFY sourceClipRectChanged REVISION 15)
    QML_NAMED_ELEMENT(Image)

public:
    QQuickImage(QQuickItem *parent=nullptr);
    ~QQuickImage();

    enum HAlignment { AlignLeft = Qt::AlignLeft,
                       AlignRight = Qt::AlignRight,
                       AlignHCenter = Qt::AlignHCenter };
    Q_ENUM(HAlignment)
    enum VAlignment { AlignTop = Qt::AlignTop,
                       AlignBottom = Qt::AlignBottom,
                       AlignVCenter = Qt::AlignVCenter };
    Q_ENUM(VAlignment)

    enum FillMode { Stretch, PreserveAspectFit, PreserveAspectCrop, Tile, TileVertically, TileHorizontally, Pad };
    Q_ENUM(FillMode)

    FillMode fillMode() const;
    void setFillMode(FillMode);

    qreal paintedWidth() const;
    qreal paintedHeight() const;

    QRectF boundingRect() const override;

    HAlignment horizontalAlignment() const;
    void setHorizontalAlignment(HAlignment align);

    VAlignment verticalAlignment() const;
    void setVerticalAlignment(VAlignment align);

    bool isTextureProvider() const override { return true; }
    QSGTextureProvider *textureProvider() const override;

    bool mipmap() const;
    void setMipmap(bool use);

    void emitAutoTransformBaseChanged() override { emit autoTransformChanged(); }

Q_SIGNALS:
    void fillModeChanged();
    void paintedGeometryChanged();
    void horizontalAlignmentChanged(HAlignment alignment);
    void verticalAlignmentChanged(VAlignment alignment);
    Q_REVISION(3) void mipmapChanged(bool);
    Q_REVISION(5) void autoTransformChanged();

private Q_SLOTS:
    void invalidateSceneGraph();

protected:
    QQuickImage(QQuickImagePrivate &dd, QQuickItem *parent);
    void pixmapChange() override;
    void updatePaintedGeometry();
    void releaseResources() override;

    void geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry) override;
    QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *) override;

private:
    Q_DISABLE_COPY(QQuickImage)
    Q_DECLARE_PRIVATE(QQuickImage)
};

QT_END_NAMESPACE
QML_DECLARE_TYPE(QQuickImage)
#endif // QQUICKIMAGE_P_H