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screensaver.h
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screensaver.h
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#ifndef SCREENSAVER_H
#define SCREENSAVER_H
#include <QQuickWindow>
#include <random>
#include <QRandomGenerator>
#include <QElapsedTimer>
#include <QQuickFramebufferObject>
#include <QOpenGLFramebufferObject>
#include "stick.h"
class Screensaver : public QQuickFramebufferObject
{
Q_OBJECT
public:
Renderer *createRenderer() const override;
};
class StickRenderer : public QQuickFramebufferObject::Renderer, protected QOpenGLFunctions
{
public:
StickRenderer();
qint64 elapsed() const { return _timer.elapsed(); }
void initializeGLCanvas();
void resizeGLCanvas(int width, int height);
void paintGLCanvas();
protected:
void render() override;
QOpenGLFramebufferObject *createFramebufferObject(const QSize &size) override;
void synchronize(QQuickFramebufferObject *item) override;
private:
QVector<Stick*> _barSticks;
std::uniform_real_distribution<qreal> randomX, randomY, randomRadius;
std::uniform_real_distribution<qreal> randomFrequency, randomRatioRotation;
QElapsedTimer _timer;
};
#endif // SCREENSAVER_H