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#ifndef FRAGMENT_TOY_H
#define FRAGMENT_TOY_H
#include <QObject>
#include <QFile>
#include <QDateTime>
#if QT_CONFIG(filesystemwatcher)
#include <QFileSystemWatcher>
#endif
#include <QOpenGLVertexArrayObject>
#include <QOpenGLBuffer>
#include <QOpenGLShaderProgram>
#include <QOpenGLFunctions>
#include <memory>
class FragmentToy : public QObject, protected QOpenGLFunctions
{
Q_OBJECT
public:
explicit FragmentToy(const QString &fragmentSource, QObject *parent = nullptr);
~FragmentToy();
void draw(const QSize &windowSize);
private:
void fileChanged(const QString &path);
bool m_recompile_shaders;
#if QT_CONFIG(filesystemwatcher)
QFileSystemWatcher m_watcher;
#endif
QString m_fragment_file;
QDateTime m_fragment_file_last_modified;
std::unique_ptr<QOpenGLShaderProgram> m_program;
std::unique_ptr<QOpenGLShader> m_vertex_shader;
std::unique_ptr<QOpenGLShader> m_fragment_shader;
QOpenGLVertexArrayObject m_vao;
QOpenGLBuffer m_vertex_buffer;
GLuint m_vertex_coord_pos;
};
#endif //FRAGMENT_TOY_H