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39 | |
40 | #ifndef QOPENGLWIDGET_H |
41 | #define QOPENGLWIDGET_H |
42 | |
43 | #include <QtWidgets/qtwidgetsglobal.h> |
44 | |
45 | #ifndef QT_NO_OPENGL |
46 | |
47 | #include <QtWidgets/QWidget> |
48 | #include <QtGui/QSurfaceFormat> |
49 | #include <QtGui/qopengl.h> |
50 | |
51 | QT_BEGIN_NAMESPACE |
52 | |
53 | class QOpenGLWidgetPrivate; |
54 | |
55 | class Q_WIDGETS_EXPORT QOpenGLWidget : public QWidget |
56 | { |
57 | Q_OBJECT |
58 | Q_DECLARE_PRIVATE(QOpenGLWidget) |
59 | |
60 | public: |
61 | enum UpdateBehavior { |
62 | NoPartialUpdate, |
63 | PartialUpdate |
64 | }; |
65 | |
66 | explicit QOpenGLWidget(QWidget* parent = nullptr, Qt::WindowFlags f = Qt::WindowFlags()); |
67 | ~QOpenGLWidget(); |
68 | |
69 | void setUpdateBehavior(UpdateBehavior updateBehavior); |
70 | UpdateBehavior updateBehavior() const; |
71 | |
72 | void setFormat(const QSurfaceFormat &format); |
73 | QSurfaceFormat format() const; |
74 | |
75 | GLenum textureFormat() const; |
76 | void setTextureFormat(GLenum texFormat); |
77 | |
78 | bool isValid() const; |
79 | |
80 | void makeCurrent(); |
81 | void doneCurrent(); |
82 | |
83 | QOpenGLContext *context() const; |
84 | GLuint defaultFramebufferObject() const; |
85 | |
86 | QImage grabFramebuffer(); |
87 | |
88 | Q_SIGNALS: |
89 | void aboutToCompose(); |
90 | void frameSwapped(); |
91 | void aboutToResize(); |
92 | void resized(); |
93 | |
94 | protected: |
95 | virtual void initializeGL(); |
96 | virtual void resizeGL(int w, int h); |
97 | virtual void paintGL(); |
98 | |
99 | void paintEvent(QPaintEvent *e) override; |
100 | void resizeEvent(QResizeEvent *e) override; |
101 | bool event(QEvent *e) override; |
102 | |
103 | int metric(QPaintDevice::PaintDeviceMetric metric) const override; |
104 | QPaintDevice *redirected(QPoint *p) const override; |
105 | QPaintEngine *paintEngine() const override; |
106 | |
107 | private: |
108 | Q_DISABLE_COPY(QOpenGLWidget) |
109 | }; |
110 | |
111 | QT_END_NAMESPACE |
112 | |
113 | #endif // QT_NO_OPENGL |
114 | |
115 | #endif // QOPENGLWIDGET_H |
116 | |