/****************************************************************************
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** This file is part of Qt 3D Studio.
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#ifndef SCENE_CAMERA_GLWIDGET_H
#define SCENE_CAMERA_GLWIDGET_H

#include <QtWidgets/qopenglwidget.h>
#include <QtGui/qopenglfunctions.h>
#include <QtGui/qvector2d.h>
#include <QtGui/qvector4d.h>

QT_FORWARD_DECLARE_CLASS(QOpenGLShaderProgram)
QT_FORWARD_DECLARE_CLASS(QOpenGLBuffer)
QT_FORWARD_DECLARE_CLASS(QOpenGLVertexArrayObject)

class SceneCameraGlWidget : public QOpenGLWidget, QOpenGLFunctions
{
    Q_OBJECT
public:
    explicit SceneCameraGlWidget(QWidget *parent = nullptr);
    ~SceneCameraGlWidget();

    void setTextureOffset(const QVector4D &offset) { m_textureOffset = offset; }
    void setGeometryOffset(const QVector4D &offset) { m_geometryOffset = offset; }

protected:
    void initializeGL() override;
    void paintGL() override;
    void resizeGL(int, int) override;

private:
    void cleanup();

    QOpenGLShaderProgram *m_program = nullptr;
    QOpenGLBuffer *m_vertexBuffer = nullptr;
    QOpenGLBuffer *m_uvBuffer = nullptr;
    QOpenGLVertexArrayObject *m_vao = nullptr;
    GLint m_uniformTextureOffset = 0;
    GLint m_uniformGeometryOffset = 0;
    QVector4D m_textureOffset;
    QVector4D m_geometryOffset;
};

#endif