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50
51#include <QWindow>
52
53#include <QColor>
54#include <QMutex>
55#include <QOpenGLShaderProgram>
56#include <QOpenGLBuffer>
57#include <QSharedPointer>
58#include <QTimer>
59
60class HelloWindow;
61
62class Renderer : public QObject
63{
64 Q_OBJECT
65
66public:
67 explicit Renderer(const QSurfaceFormat &format, Renderer *share = nullptr,
68 QScreen *screen = nullptr);
69
70 QSurfaceFormat format() const { return m_format; }
71
72public slots:
73 void render(HelloWindow *surface, qreal angle, const QColor &color);
74
75signals:
76 void requestUpdate();
77
78private:
79 void initialize();
80
81 void createGeometry();
82 void createBubbles(int number);
83 void quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4);
84 void extrude(qreal x1, qreal y1, qreal x2, qreal y2);
85
86 QList<QVector3D> vertices;
87 QList<QVector3D> normals;
88 int vertexAttr;
89 int normalAttr;
90 int matrixUniform;
91 int colorUniform;
92
93 bool m_initialized;
94 QSurfaceFormat m_format;
95 QOpenGLContext *m_context;
96 QOpenGLShaderProgram *m_program;
97 QOpenGLBuffer m_vbo;
98 QColor m_backgroundColor;
99};
100
101class HelloWindow : public QWindow
102{
103public:
104 explicit HelloWindow(const QSharedPointer<Renderer> &renderer, QScreen *screen = nullptr);
105
106 QColor color() const;
107 void updateColor();
108
109protected:
110 bool event(QEvent *ev) override;
111 void exposeEvent(QExposeEvent *event) override;
112 void mousePressEvent(QMouseEvent *) override;
113 void render();
114
115private:
116 int m_colorIndex;
117 QColor m_color;
118 const QSharedPointer<Renderer> m_renderer;
119};
120