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#ifndef PAINTER_H
#define PAINTER_H
#include <QtOpenGL/qgl.h>
#include <QtGui/qmatrix4x4.h>
class Light;
class LightModel;
class Material;
class QGLShaderProgram;
class Painter
{
public:
Painter() : light(0), lightModel(0) {}
virtual ~Painter() {}
virtual void setMatrices(const QMatrix4x4 &mv, const QMatrix4x4 &proj) = 0;
virtual void selectMaterial(Material *material) = 0;
virtual void selectTexturedMaterial(Material *material) = 0;
virtual void setVertices(const float *array, int stride) = 0;
virtual void setTexCoords(const float *array, int stride) = 0;
virtual void setNormals(const float *array, int stride) = 0;
void drawQuad(const QVector3D &c1, const QVector3D &c2,
const QVector3D &c3, const QVector3D &c4,
const QVector3D &normal);
void setLight(Light *value) { light = value; }
void setLightModel(LightModel *value) { lightModel = value; }
protected:
Light *light;
LightModel *lightModel;
};
class FixedFunctionPainter : public Painter
{
public:
FixedFunctionPainter();
void setMatrices(const QMatrix4x4 &mv, const QMatrix4x4 &proj);
void selectMaterial(Material *material);
void selectTexturedMaterial(Material *material);
void setVertices(const float *array, int stride);
void setTexCoords(const float *array, int stride);
void setNormals(const float *array, int stride);
};
class ShaderPainter : public Painter
{
public:
ShaderPainter();
~ShaderPainter();
void setMatrices(const QMatrix4x4 &mv, const QMatrix4x4 &proj);
void selectMaterial(Material *material);
void selectTexturedMaterial(Material *material);
void setVertices(const float *array, int stride);
void setTexCoords(const float *array, int stride);
void setNormals(const float *array, int stride);
private:
QGLShaderProgram *materialProgram;
QGLShaderProgram *textureProgram;
QGLShaderProgram *currentProgram;
QMatrix4x4 combinedMatrix;
QMatrix4x4 modelViewMatrix;
QMatrix3x3 normalMatrix;
bool matricesChanged;
void updateMaterials(QGLShaderProgram *program, Material *material);
};
#endif