VertexArray.h

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#pragma once
#include <QOpenGLExtraFunctions>
#include <xgl/ShaderProgram.h>
#include <xgl/VertexArrayBase.h>
#include <xgl/global.h>
#include <xgl/utils.h>
 
namespace sf::xgl
{

class _XGL_CLASS VertexArray : public VertexArrayBase
{
  public:
    typedef GLuint handle_type;

    explicit VertexArray(ShaderProgram* sp);

    ~VertexArray() override;

    bool setup() override;

    void draw() override;

    void paint() override;
 
  protected:
    virtual bool doCreate() = 0;

    virtual void doDraw() = 0;

    virtual void doPaint() = 0;

    ShaderProgram* shaderProgram();

    template<typename VertexType, typename FieldType>
    void setAttribPointer(ShaderProgram::Attribute sa, size_t offset);
 
  private:
    ShaderProgram* _shaderProgram;
};
 
template<typename VertexType, typename FieldType>
void VertexArray::setAttribPointer(ShaderProgram::Attribute sa, size_t offset)
{
  setVertexAttribPointer<VertexType, FieldType>(_shaderProgram->attributeLocation(sa), offset);
}
 
}// namespace sf::xgl