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     2 **

     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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     7 ** This file is part of the Qt3D module of the Qt Toolkit.

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    16 ** GNU Lesser General Public License Usage

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    38 ** $QT_END_LICENSE$

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    40 ****************************************************************************/

    41 

    42 #ifndef PAINTER_H

    43 #define PAINTER_H

    44 

    45 #include <QtOpenGL/qgl.h>

    46 #include <QtGui/qmatrix4x4.h>

    47 

    48 class Light;

    49 class LightModel;

    50 class Material;

    51 class QGLShaderProgram;

    52 

    53 class Painter

    54 {

    55 public:

    56     Painter() : light(0), lightModel(0) {}

    57     virtual ~Painter() {}

    58 

    59     virtual void setMatrices(const QMatrix4x4 &mv, const QMatrix4x4 &proj) = 0;

    60     virtual void selectMaterial(Material *material) = 0;

    61     virtual void selectTexturedMaterial(Material *material) = 0;

    62     virtual void setVertices(const float *array, int stride) = 0;

    63     virtual void setTexCoords(const float *array, int stride) = 0;

    64     virtual void setNormals(const float *array, int stride) = 0;

    65 

    66     void drawQuad(const QVector3D &c1, const QVector3D &c2,

    67                   const QVector3D &c3, const QVector3D &c4,

    68                   const QVector3D &normal);

    69 

    70     void setLight(Light *value) { light = value; }

    71     void setLightModel(LightModel *value) { lightModel = value; }

    72 

    73 protected:

    74     Light *light;

    75     LightModel *lightModel;

    76 };

    77 

    78 class FixedFunctionPainter : public Painter

    79 {

    80 public:

    81     FixedFunctionPainter();

    82 

    83     void setMatrices(const QMatrix4x4 &mv, const QMatrix4x4 &proj);

    84     void selectMaterial(Material *material);

    85     void selectTexturedMaterial(Material *material);

    86     void setVertices(const float *array, int stride);

    87     void setTexCoords(const float *array, int stride);

    88     void setNormals(const float *array, int stride);

    89 };

    90 

    91 class ShaderPainter : public Painter

    92 {

    93 public:

    94     ShaderPainter();

    95     ~ShaderPainter();

    96 

    97     void setMatrices(const QMatrix4x4 &mv, const QMatrix4x4 &proj);

    98     void selectMaterial(Material *material);

    99     void selectTexturedMaterial(Material *material);

   100     void setVertices(const float *array, int stride);

   101     void setTexCoords(const float *array, int stride);

   102     void setNormals(const float *array, int stride);

   103 

   104 private:

   105     QGLShaderProgram *materialProgram;

   106     QGLShaderProgram *textureProgram;

   107     QGLShaderProgram *currentProgram;

   108     QMatrix4x4 combinedMatrix;

   109     QMatrix4x4 modelViewMatrix;

   110     QMatrix3x3 normalMatrix;

   111     bool matricesChanged;

   112 

   113     void updateMaterials(QGLShaderProgram *program, Material *material);

   114 };

   115 

   116 #endif