scenegraph/ViewPort.h

   1 #ifndef AWFUL_SCENEGRAPH_VIEWPORT_H_
   2 #define AWFUL_SCENEGRAPH_VIEWPORT_H_
   3
   4 #include "core/core.h"
   5 #include "Camera.h"
   6 #include "math/Rectu32.h"
   7 #include <GL/gl.h>
   8 #include <GL/glu.h>
   9
  10 namespace awful { namespace scenegraph
  11 {
  12         class ViewPort : public Serializable
  13         {
  14                 public:
  15                         ViewPort( const Pointer< Camera >& pCamera ) :
  16                                 m_pCamera( pCamera ),
  17                                 m_ZNear( 0.1f ),
  18                                 m_ZFar( 50.f )
  19                         {
  20                         }
  21
  22                         ViewPort( const Serialization_tag& ) {}
  23
  24                         const Pointer< Camera >& getpCamera() const { return m_pCamera; }
  25                         void setpCamera( const Pointer< Camera >& x ) { m_pCamera = x; }
  26
  27                         const math::Rectu32& getRect() const { return m_Rect; }
  28                         math::Rectu32& getRect() { return m_Rect; }
  29                         void setRect( const math::Rectu32& x ) { m_Rect = x; }
  30
  31                         const float& getZNear() const { return m_ZNear; }
  32                         void setZNear( const float& x ) { m_ZNear = x; }
  33
  34                         const float& getZFar() const { return m_ZFar; }
  35                         void setZFar( const float& x ) { m_ZFar = x; }
  36
  37
  38                         void renderSetup() const
  39                         {
  40                                 glViewport( m_Rect.left(), m_Rect.top(), m_Rect.width(), m_Rect.height() );
  41
  42                                 float ratio = static_cast< float >( m_Rect.width() ) /
  43                                                           static_cast< float >( m_Rect.height() );
  44
  45                                 glMatrixMode( GL_PROJECTION );
  46                                 m_pCamera->renderSetup();
  47                                 gluPerspective( m_pCamera->getFOV(), ratio, m_ZNear, m_ZFar );
  48                         }
  49
  50                 private:
  51                         template< class C, typename T > friend struct awful::attribute_traits;
  52                         Pointer< Camera >       m_pCamera;
  53                         math::Rectu32           m_Rect;
  54                         float                           m_ZNear;
  55                         float                           m_ZFar;
  56         };
  57 }}
  58
  59 #endif