| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** |
| ** This file is part of the QtWidgets module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
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| ** GNU Lesser General Public License Usage |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
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| ****************************************************************************/ |
| |
| #ifndef QOPENGLWIDGET_H |
| #define QOPENGLWIDGET_H |
| |
| #include <QtWidgets/qtwidgetsglobal.h> |
| |
| #ifndef QT_NO_OPENGL |
| |
| #include <QtWidgets/QWidget> |
| #include <QtGui/QSurfaceFormat> |
| #include <QtGui/qopengl.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QOpenGLWidgetPrivate; |
| |
| class Q_WIDGETS_EXPORT QOpenGLWidget : public QWidget |
| { |
| Q_OBJECT |
| Q_DECLARE_PRIVATE(QOpenGLWidget) |
| |
| public: |
| enum UpdateBehavior { |
| NoPartialUpdate, |
| PartialUpdate |
| }; |
| |
| explicit QOpenGLWidget(QWidget* parent = nullptr, Qt::WindowFlags f = Qt::WindowFlags()); |
| ~QOpenGLWidget(); |
| |
| void setUpdateBehavior(UpdateBehavior updateBehavior); |
| UpdateBehavior updateBehavior() const; |
| |
| void setFormat(const QSurfaceFormat &format); |
| QSurfaceFormat format() const; |
| |
| GLenum textureFormat() const; |
| void setTextureFormat(GLenum texFormat); |
| |
| bool isValid() const; |
| |
| void makeCurrent(); |
| void doneCurrent(); |
| |
| QOpenGLContext *context() const; |
| GLuint defaultFramebufferObject() const; |
| |
| QImage grabFramebuffer(); |
| |
| Q_SIGNALS: |
| void aboutToCompose(); |
| void frameSwapped(); |
| void aboutToResize(); |
| void resized(); |
| |
| protected: |
| virtual void initializeGL(); |
| virtual void resizeGL(int w, int h); |
| virtual void paintGL(); |
| |
| void paintEvent(QPaintEvent *e) override; |
| void resizeEvent(QResizeEvent *e) override; |
| bool event(QEvent *e) override; |
| |
| int metric(QPaintDevice::PaintDeviceMetric metric) const override; |
| QPaintDevice *redirected(QPoint *p) const override; |
| QPaintEngine *paintEngine() const override; |
| |
| private: |
| Q_DISABLE_COPY(QOpenGLWidget) |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QT_NO_OPENGL |
| |
| #endif // QOPENGLWIDGET_H |