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41 | |
42 | #ifndef QGLPAINTDEVICE_P_H |
43 | #define QGLPAINTDEVICE_P_H |
44 | |
45 | // |
46 | // W A R N I N G |
47 | // ------------- |
48 | // |
49 | // This file is not part of the Qt API. It exists for the convenience |
50 | // of the QtOpenGL module. This header file may change from |
51 | // version to version without notice, or even be removed. |
52 | // |
53 | // We mean it. |
54 | // |
55 | |
56 | |
57 | #include <qpaintdevice.h> |
58 | #include <qgl.h> |
59 | |
60 | |
61 | QT_BEGIN_NAMESPACE |
62 | |
63 | class Q_OPENGL_EXPORT QGLPaintDevice : public QPaintDevice |
64 | { |
65 | public: |
66 | QGLPaintDevice(); |
67 | virtual ~QGLPaintDevice(); |
68 | |
69 | int devType() const {return QInternal::OpenGL;} |
70 | |
71 | virtual void beginPaint(); |
72 | virtual void ensureActiveTarget(); |
73 | virtual void endPaint(); |
74 | |
75 | virtual QGLContext* context() const = 0; |
76 | virtual QGLFormat format() const; |
77 | virtual QSize size() const = 0; |
78 | virtual bool alphaRequested() const; |
79 | virtual bool isFlipped() const; |
80 | |
81 | // returns the QGLPaintDevice for the given QPaintDevice |
82 | static QGLPaintDevice* getDevice(QPaintDevice*); |
83 | |
84 | protected: |
85 | int metric(QPaintDevice::PaintDeviceMetric metric) const; |
86 | GLuint m_previousFBO; |
87 | GLuint m_thisFBO; |
88 | }; |
89 | |
90 | |
91 | // Wraps a QGLWidget |
92 | class QGLWidget; |
93 | class QGLWidgetGLPaintDevice : public QGLPaintDevice |
94 | { |
95 | public: |
96 | QGLWidgetGLPaintDevice(); |
97 | |
98 | virtual QPaintEngine* paintEngine() const; |
99 | |
100 | // QGLWidgets need to do swapBufers in endPaint: |
101 | virtual void beginPaint(); |
102 | virtual void endPaint(); |
103 | virtual QSize size() const; |
104 | virtual QGLContext* context() const; |
105 | |
106 | void setWidget(QGLWidget*); |
107 | |
108 | private: |
109 | friend class QGLWidget; |
110 | QGLWidget *glWidget; |
111 | }; |
112 | |
113 | QT_END_NAMESPACE |
114 | |
115 | #endif // QGLPAINTDEVICE_P_H |
116 | |