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39
40#ifndef QGFXSOURCEPROXY_P_H
41#define QGFXSOURCEPROXY_P_H
42
43#include <QtQuick/QQuickItem>
44
45QT_BEGIN_NAMESPACE
46
47class QQuickShaderEffectSource;
48
49class QGfxSourceProxy : public QQuickItem
50{
51 Q_OBJECT
52
53 Q_PROPERTY(QQuickItem *input READ input WRITE setInput NOTIFY inputChanged RESET resetInput)
54 Q_PROPERTY(QQuickItem *output READ output NOTIFY outputChanged)
55 Q_PROPERTY(QRectF sourceRect READ sourceRect WRITE setSourceRect NOTIFY sourceRectChanged)
56
57 Q_PROPERTY(bool active READ isActive NOTIFY activeChanged)
58 Q_PROPERTY(Interpolation interpolation READ interpolation WRITE setInterpolation NOTIFY interpolationChanged)
59
60 Q_ENUMS(Interpolation)
61
62public:
63 enum Interpolation {
64 AnyInterpolation,
65 NearestInterpolation,
66 LinearInterpolation
67 };
68
69 QGfxSourceProxy(QQuickItem *item = 0);
70 ~QGfxSourceProxy();
71
72 QQuickItem *input() const { return m_input; }
73 void setInput(QQuickItem *input);
74 void resetInput() { setInput(0); }
75
76 QQuickItem *output() const { return m_output; }
77
78 QRectF sourceRect() const { return m_sourceRect; }
79 void setSourceRect(const QRectF &sourceRect);
80
81 bool isActive() const { return m_output && m_output != m_input; }
82
83 void setInterpolation(Interpolation i);
84 Interpolation interpolation() const { return m_interpolation; }
85
86protected:
87 void updatePolish() override;
88
89signals:
90 void inputChanged();
91 void outputChanged();
92 void sourceRectChanged();
93 void activeChanged();
94 void interpolationChanged();
95
96private slots:
97 void repolish();
98
99private:
100 void setOutput(QQuickItem *output);
101 void useProxy();
102 static QObject *findLayer(QQuickItem *);
103
104 QRectF m_sourceRect;
105 QQuickItem *m_input;
106 QQuickItem *m_output;
107 QQuickShaderEffectSource *m_proxy;
108
109 Interpolation m_interpolation;
110};
111
112QT_END_NAMESPACE
113
114#endif // QGFXSOURCEPROXY_P_H
115

source code of qtgraphicaleffects/src/effects/private/qgfxsourceproxy_p.h