SoGuiGLWidget.h

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/*=======================================================================
** Author      : T.MEHAMLI (Jun 2007)
**=======================================================================*/
 
#ifndef SO_GUI_GL_WIDGET_H
#define SO_GUI_GL_WIDGET_H
 
//
//  Class: SoGuiGLWidget
//
// SoXXGLWidgets implementation class
// 
//
 
#include <Inventor/antialiasing/SiAntialiasingEventListener.h>
#include <Inventor/Gui/SoGuiComponent.h>
#include <Inventor/fields/SoSFInt32.h>
#include <Inventor/fields/SoSFFloat.h>
#include <Inventor/devices/SoGLFormat.h>
#include <Inventor/nodes/SoFullSceneAntialiasing.h>
#include <Inventor/image/SbRasterImage.h>
 
class SoGLGraphicConfigTemplate;
 
#ifndef HIDDEN_FROM_DOC
typedef SbBool (*soGUIDependentCB)(void* data);
typedef void* (*soGUIWindowDependentCB)(void* data);
#endif
 
 
class  SoGuiGLWidget : public SoGuiComponent 
{
#ifndef HIDDEN_FROM_DOC
  SO_FIELDCONTAINER_HEADER( SoGuiGLWidget );
#endif
 
private:
 
  SoSFFieldContainer gcTemplate;
  SoSFBool focus;
 
  enum FloatColorBufferSize 
  {
    FLOAT_16_COLOR_BUFFER = 0,
    FLOAT_32_COLOR_BUFFER = 1
  };
  
  SoGuiGLWidget();
 
  void setAntialiasing(const float quality, const SoSceneManager::AntialiasingMode mode = SoSceneManager::AUTO);
 
  void setAntialiasing(SoAntialiasingParameters* advancedParameters);
 
  float getAntialiasingQuality() const;
 
  SoSceneManager::AntialiasingMode getAntialiasingMode() const;
 
  SoAntialiasingParameters* getAntialiasingParameters() const;
 
  void setColorMapSize( int size );
 
  int getColorMapSize();
 
  SbBool isDoubleBuffer();
 
  void setBorder( int newValue );
 
  int getBorderSize();
 
  SbBool isBorder() const;
 
  void setDrawToFrontBufferEnable( SbBool enableFlag );
 
  SbBool isDrawToFrontBufferEnable() const;
 
  void setFloatingColorBuffer( SbBool enable, FloatColorBufferSize size = FLOAT_16_COLOR_BUFFER );
 
  void getFloatingColorBuffer( SbBool& enable, FloatColorBufferSize& size );
 
  static SbBool isFloatingColorBufferSupported();
 
  void setGLModes( int mode );
 
  int getGLModes() const;
 
  SbBool setGLFormat( const SoGLFormat& format );
 
  const SoGLFormat& getGLFormat() const;
 
  typedef SbBool (*FormatChangeCallback)( SoGLFormat&, void* userData );
 
  void setOnFormatChangeCalback( FormatChangeCallback callback, void* userData = NULL );
 
  virtual SbBool setDoubleBuffer( SbBool enable );
 
  void setRemoteRendering( bool enable );
 
  bool isRemoteRendering() const;
 
  SbBool setStereoEnabled( SbBool enable );
 
  SbBool isStereoEnabled() const;
 
  // Note: It would make more sense to copydoc *from* this class, but
  //       Doxygen won't do that because this class is not currently documented... :-(
  bool saveSnapshot( const SbString& filename, bool override = true );
 
  // Accessor and mutator for the member m_drawToFrontBuffer
  void setDrawToFrontBuffer( SbBool enable );
  SbBool getDrawToFrontBuffer() const;
 
  // Accessor and mutator for the member m_colorMap
  void setColorMap( unsigned long colorMap );
  unsigned long getColorMap() const;
 
  // ----------------------- Extension usage -----------------------------------
 
  // sets/gets the size of the glx widget(s) - Note this size could be
  // different from the SoXtComponent::getSize() method which return
  // the size of the component, not necessary the same as the glx widget
  // window (because of extra stuff like the decoration in the viewers).
  void setGlxSize( SbVec2s newSize );
  const SbVec2s& getGlxSize() const;
 
  SbBool isStereoBuffer();
 
  // returns TRUE if main window is in rgb mode (FALSE if color index)
  SbBool isRGBMode();
 
  // return the graphic config template from field gcTemplate.
  void setGraphicConfigTemplate( SoGLGraphicConfigTemplate* gc );
  SoGLGraphicConfigTemplate* getGraphicConfigTemplate();
 
  // setup system dependent GLWidget handles.
  void setGLWidgetHandle( const void* glWidgetHandle,
                          soGUIDependentCB swapBufferCB,
                          soGUIDependentCB bindCurrentCB,
                          soGUIDependentCB unbindCurrentCB,
                          soGUIWindowDependentCB getNormalCB,
                          soGUIWindowDependentCB getDisplayCB = NULL);
 
  // These call are internal public to let IvTune to access them.
  // handle on GLWidget handle/function comming from system independent GUI
  // initialized through setGLWidgetHandle;
  static soGUIDependentCB swapNormalBuffersCB;
  static soGUIDependentCB bindNormalCurrentCB;
  static soGUIDependentCB unbindNormalCurrentCB;
  static soGUIWindowDependentCB getNormalWindowCB;
  static soGUIWindowDependentCB getCurrentDisplayCB;
  void * m_glWidgetHandle;
 
  virtual void* getNormalWindow() { return getNormalWindowCB(m_glWidgetHandle); }
  virtual void* getDisplay() { return getCurrentDisplayCB(m_glWidgetHandle); }
 
  virtual SbBool bindNormalContext();
  virtual SbBool unbindNormalContext();
 
  bool onAntialiasingSwitch(const SoSceneManager::AntialiasingMode& mode, const float& quality, const SoAntialiasingParameters* parameters);
 
 
 
private:
 
  virtual ~SoGuiGLWidget();
 
  static SbBool m_hasFloatBuffer;
 
  SiAntialiasingEventListener* getAntialiasingListener() const;
 
// ----------------------- Private usage -------------------------------------
 
private:
 
  // Used by deprecated Antialiasing API
  SoAntialiasingParameters* m_fsaaParameters;
 
  // local vars
  SbVec2s m_glxSize; // size of glx widgets which is always up to date
  int m_glModes;
  int m_borderSize;
 
  SoGLFormat m_format;
  FormatChangeCallback m_formatChangeCallback;
  void* m_formatChangeCallbackUserData;
  
  unsigned long m_colorMap; // set when color index is used
  int m_colorMapSize;
 
  SbBool m_drawToFrontBuffer; // used by RA to draw new scenes to front buffer
  SbBool m_enableDrawToFrontBuffer;
 
  unsigned long m_transparentPixel;
  
  bool m_isRemoteRendering;
 
  int m_snapshotFBOId;
 
  SbBool m_isFloatingPointRendering;
  FloatColorBufferSize m_floatingPointRenderingPrecision;
 
  SoGLGraphicConfigTemplate* m_gcTemplate;
 
  SiAntialiasingEventListener* m_antialiasingListener;
};
 
 
#endif // SO_GUI_GL_WIDGET_H