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39
40#ifndef QQUICKIMAGE_P_H
41#define QQUICKIMAGE_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include "qquickimagebase_p.h"
55#include <QtQuick/qsgtextureprovider.h>
56
57QT_BEGIN_NAMESPACE
58
59class QQuickImagePrivate;
60class Q_QUICK_PRIVATE_EXPORT QQuickImage : public QQuickImageBase
61{
62 Q_OBJECT
63
64 Q_PROPERTY(FillMode fillMode READ fillMode WRITE setFillMode NOTIFY fillModeChanged)
65 Q_PROPERTY(qreal paintedWidth READ paintedWidth NOTIFY paintedGeometryChanged)
66 Q_PROPERTY(qreal paintedHeight READ paintedHeight NOTIFY paintedGeometryChanged)
67 Q_PROPERTY(HAlignment horizontalAlignment READ horizontalAlignment WRITE setHorizontalAlignment NOTIFY horizontalAlignmentChanged)
68 Q_PROPERTY(VAlignment verticalAlignment READ verticalAlignment WRITE setVerticalAlignment NOTIFY verticalAlignmentChanged)
69 Q_PROPERTY(bool mipmap READ mipmap WRITE setMipmap NOTIFY mipmapChanged REVISION 3)
70 Q_PROPERTY(bool autoTransform READ autoTransform WRITE setAutoTransform NOTIFY autoTransformChanged REVISION 5)
71 Q_PROPERTY(QRectF sourceClipRect READ sourceClipRect WRITE setSourceClipRect RESET resetSourceClipRect NOTIFY sourceClipRectChanged REVISION 15)
72 QML_NAMED_ELEMENT(Image)
73
74public:
75 QQuickImage(QQuickItem *parent=nullptr);
76 ~QQuickImage();
77
78 enum HAlignment { AlignLeft = Qt::AlignLeft,
79 AlignRight = Qt::AlignRight,
80 AlignHCenter = Qt::AlignHCenter };
81 Q_ENUM(HAlignment)
82 enum VAlignment { AlignTop = Qt::AlignTop,
83 AlignBottom = Qt::AlignBottom,
84 AlignVCenter = Qt::AlignVCenter };
85 Q_ENUM(VAlignment)
86
87 enum FillMode { Stretch, PreserveAspectFit, PreserveAspectCrop, Tile, TileVertically, TileHorizontally, Pad };
88 Q_ENUM(FillMode)
89
90 FillMode fillMode() const;
91 void setFillMode(FillMode);
92
93 qreal paintedWidth() const;
94 qreal paintedHeight() const;
95
96 QRectF boundingRect() const override;
97
98 HAlignment horizontalAlignment() const;
99 void setHorizontalAlignment(HAlignment align);
100
101 VAlignment verticalAlignment() const;
102 void setVerticalAlignment(VAlignment align);
103
104 bool isTextureProvider() const override { return true; }
105 QSGTextureProvider *textureProvider() const override;
106
107 bool mipmap() const;
108 void setMipmap(bool use);
109
110 void emitAutoTransformBaseChanged() override { emit autoTransformChanged(); }
111
112Q_SIGNALS:
113 void fillModeChanged();
114 void paintedGeometryChanged();
115 void horizontalAlignmentChanged(HAlignment alignment);
116 void verticalAlignmentChanged(VAlignment alignment);
117 Q_REVISION(3) void mipmapChanged(bool);
118 Q_REVISION(5) void autoTransformChanged();
119
120private Q_SLOTS:
121 void invalidateSceneGraph();
122
123protected:
124 QQuickImage(QQuickImagePrivate &dd, QQuickItem *parent);
125 void pixmapChange() override;
126 void updatePaintedGeometry();
127 void releaseResources() override;
128
129 void geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry) override;
130 QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *) override;
131
132private:
133 Q_DISABLE_COPY(QQuickImage)
134 Q_DECLARE_PRIVATE(QQuickImage)
135};
136
137QT_END_NAMESPACE
138QML_DECLARE_TYPE(QQuickImage)
139#endif // QQUICKIMAGE_P_H
140

source code of qtdeclarative/src/quick/items/qquickimage_p.h