glwidget.h Example File

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#ifndef GLWIDGET_H #define GLWIDGET_H #include <QOpenGLWidget> #include <QOpenGLFunctions> #include <QOpenGLVertexArrayObject> #include <QOpenGLBuffer> #include <QMatrix4x4> #include "logo.h" QT_FORWARD_DECLARE_CLASS(QOpenGLShaderProgram) class GLWidget : public QOpenGLWidget, protected QOpenGLFunctions { Q_OBJECT public: GLWidget(QWidget *parent = 0); ~GLWidget(); static bool isTransparent() { return m_transparent; } static void setTransparent(bool t) { m_transparent = t; } QSize minimumSizeHint() const override; QSize sizeHint() const override; public slots: void setXRotation(int angle); void setYRotation(int angle); void setZRotation(int angle); void cleanup(); signals: void xRotationChanged(int angle); void yRotationChanged(int angle); void zRotationChanged(int angle); protected: void initializeGL() override; void paintGL() override; void resizeGL(int width, int height) override; void mousePressEvent(QMouseEvent *event) override; void mouseMoveEvent(QMouseEvent *event) override; private: void setupVertexAttribs(); bool m_core; int m_xRot; int m_yRot; int m_zRot; QPoint m_lastPos; Logo m_logo; QOpenGLVertexArrayObject m_vao; QOpenGLBuffer m_logoVbo; QOpenGLShaderProgram *m_program; int m_projMatrixLoc; int m_mvMatrixLoc; int m_normalMatrixLoc; int m_lightPosLoc; QMatrix4x4 m_proj; QMatrix4x4 m_camera; QMatrix4x4 m_world; static bool m_transparent; }; #endif

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