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39
40#ifndef QOPENGLWINDOW_H
41#define QOPENGLWINDOW_H
42
43#include <QtGui/qtguiglobal.h>
44
45#ifndef QT_NO_OPENGL
46
47#include <QtGui/QPaintDeviceWindow>
48#include <QtGui/QOpenGLContext>
49#include <QtGui/QImage>
50
51QT_BEGIN_NAMESPACE
52
53class QOpenGLWindowPrivate;
54
55class Q_GUI_EXPORT QOpenGLWindow : public QPaintDeviceWindow
56{
57 Q_OBJECT
58 Q_DECLARE_PRIVATE(QOpenGLWindow)
59
60public:
61 enum UpdateBehavior {
62 NoPartialUpdate,
63 PartialUpdateBlit,
64 PartialUpdateBlend
65 };
66
67 explicit QOpenGLWindow(UpdateBehavior updateBehavior = NoPartialUpdate, QWindow *parent = nullptr);
68 explicit QOpenGLWindow(QOpenGLContext *shareContext, UpdateBehavior updateBehavior = NoPartialUpdate, QWindow *parent = nullptr);
69 ~QOpenGLWindow();
70
71 UpdateBehavior updateBehavior() const;
72 bool isValid() const;
73
74 void makeCurrent();
75 void doneCurrent();
76
77 QOpenGLContext *context() const;
78 QOpenGLContext *shareContext() const;
79
80 GLuint defaultFramebufferObject() const;
81
82 QImage grabFramebuffer();
83
84Q_SIGNALS:
85 void frameSwapped();
86
87protected:
88 virtual void initializeGL();
89 virtual void resizeGL(int w, int h);
90 virtual void paintGL();
91 virtual void paintUnderGL();
92 virtual void paintOverGL();
93
94 void paintEvent(QPaintEvent *event) override;
95 void resizeEvent(QResizeEvent *event) override;
96 int metric(PaintDeviceMetric metric) const override;
97 QPaintDevice *redirected(QPoint *) const override;
98
99private:
100 Q_DISABLE_COPY(QOpenGLWindow)
101};
102
103QT_END_NAMESPACE
104
105#endif // QT_NO_OPENGL
106
107#endif
108

source code of qtbase/src/gui/kernel/qopenglwindow.h