OpenGLRenderer.h

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#pragma once
#include <QOpenGLShaderProgram>
#include <wgt/opengl/OpenGLRenderObject.h>
#include <wgt/opengl/OpenGLWidget.h>
 
namespace sf
{
 
class QDESIGNER_WIDGET_EXPORT OpenGLRenderer : public QObject
{
    Q_OBJECT
 
  public:
    explicit OpenGLRenderer(OpenGLWidget* widget, QOpenGLShaderProgram* sp);
 
    ~OpenGLRenderer() override = default;
 
    static void initialize(OpenGLWidget* widget);
 
    bool setup();
 
    void render();
 
    OpenGLWidget* getWidget() const;
 
    QOpenGLShaderProgram* getShaderProgram() const;
 
    virtual void changedProperty() = 0;
 
    virtual void addRenderObject(OpenGLRenderObject* ro, bool append = true);
 
    virtual void setIndexValue(int index, QVariant value) = 0;
 
    Q_SIGNAL void rendering();
 
  protected:
    virtual void generate() = 0;
 
    virtual void paint() = 0;
 
    virtual void draw() = 0;
 
    OpenGLRenderObject::List _renderObjects;
    const QMatrix4x4& _projectionMatrix;
    const QMatrix4x4& _cameraMatrix;
    const QMatrix4x4& _lightPositionMatrix;
    const QMatrix4x4& _lightDirectionMatrix;
    const QMatrix4x4& _modelMatrix;
 
  private:
    QOpenGLShaderProgram* _shader;
    OpenGLWidget* _widget;
    bool _flagPaintOnly;
};
 
}// namespace sf