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50
51 #ifndef GLWIDGET_H
52 #define GLWIDGET_H
53
54 #include <QOpenGLWidget>
55 #include <QOpenGLFunctions>
56 #include <QOpenGLBuffer>
57 #include <QVector3D>
58 #include <QMatrix4x4>
59 #include <QElapsedTimer>
60 #include <QVector>
61 #include <QPushButton>
62
63 class Bubble;
64 class MainWindow;
65
66 QT_FORWARD_DECLARE_CLASS(QOpenGLTexture)
QT_FORWARD_DECLARE_CLASS(QOpenGLShader)67 QT_FORWARD_DECLARE_CLASS(QOpenGLShader)
68 QT_FORWARD_DECLARE_CLASS(QOpenGLShaderProgram)
69
70 class GLWidget : public QOpenGLWidget, protected QOpenGLFunctions
71 {
72 Q_OBJECT
73 public:
74 GLWidget(MainWindow *mw, bool button, const QColor &background);
75 ~GLWidget();
76
77 public slots:
78 void setScaling(int scale);
79 void setLogo();
80 void setTexture();
81 void setShowBubbles(bool);
82 void setTransparent(bool transparent);
83
84 private slots:
85 void handleButtonPress();
86
87 protected:
88 void resizeGL(int w, int h) override;
89 void paintGL() override;
90 void initializeGL() override;
91
92 private:
93 void paintTexturedCube();
94 void paintQtLogo();
95 void createGeometry();
96 void createBubbles(int number);
97 void quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4);
98 void extrude(qreal x1, qreal y1, qreal x2, qreal y2);
99
100 MainWindow *m_mainWindow;
101 qreal m_fAngle = 0;
102 qreal m_fScale = 1;
103 bool m_showBubbles = true;
104 QVector<QVector3D> m_vertices;
105 QVector<QVector3D> m_normals;
106 bool m_qtLogo = true;
107 QVector<Bubble *> m_bubbles;
108 int m_frames = 0;
109 QElapsedTimer m_time;
110 QOpenGLShader *m_vshader1 = nullptr;
111 QOpenGLShader *m_fshader1 = nullptr;
112 QOpenGLShader *m_vshader2 = nullptr;
113 QOpenGLShader *m_fshader2 = nullptr;
114 QOpenGLShaderProgram *m_program1 = nullptr;
115 QOpenGLShaderProgram *m_program2 = nullptr;
116 QOpenGLTexture *m_texture = nullptr;
117 QOpenGLBuffer m_vbo1;
118 QOpenGLBuffer m_vbo2;
119 int m_vertexAttr1 = 0;
120 int m_normalAttr1 = 0;
121 int m_matrixUniform1 = 0;
122 int m_vertexAttr2 = 0;
123 int m_normalAttr2 = 0;
124 int m_texCoordAttr2 = 0;
125 int m_matrixUniform2 = 0;
126 int m_textureUniform2 = 0;
127 bool m_transparent = false;
128 QPushButton *m_btn = nullptr;
129 bool m_hasButton;
130 QColor m_background;
131 };
132
133 #endif
134