squircle.h Example File

scenegraph/openglunderqml/squircle.h
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#ifndef SQUIRCLE_H #define SQUIRCLE_H #include <QtQuick/QQuickItem> #include <QtGui/QOpenGLShaderProgram> #include <QtGui/QOpenGLFunctions> class SquircleRenderer : public QObject, protected QOpenGLFunctions { Q_OBJECT public: SquircleRenderer() : m_t(0), m_program(0) { } ~SquircleRenderer(); void setT(qreal t) { m_t = t; } void setViewportSize(const QSize &size) { m_viewportSize = size; } void setWindow(QQuickWindow *window) { m_window = window; } public slots: void paint(); private: QSize m_viewportSize; qreal m_t; QOpenGLShaderProgram *m_program; QQuickWindow *m_window; }; class Squircle : public QQuickItem { Q_OBJECT Q_PROPERTY(qreal t READ t WRITE setT NOTIFY tChanged) public: Squircle(); qreal t() const { return m_t; } void setT(qreal t); signals: void tChanged(); public slots: void sync(); void cleanup(); private slots: void handleWindowChanged(QQuickWindow *win); private: qreal m_t; SquircleRenderer *m_renderer; }; #endif // SQUIRCLE_H