include/vrvOsg/DtOsgWidgetLabel.h

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/*****************************************************************************
 * Copyright (c) 2011 MAK Technologies, Inc.
 * All rights reserved.
 *****************************************************************************/


#pragma once

#include <vrvOsg/vrvOsg.h>

#include <vrvCore/DtWidgetLabel.h>

#include <vrvGraphics/DtBoundingBox.h>

#include <GL/glew.h>

#include <osg/ref_ptr>
#include <osg/Texture>

namespace osg
{
   class Texture;
}

namespace makVrv
{

   class DtSprite;
   class DtTextProxy;

   class DT_DLL_VRVOSG DtOsgWidgetLabel : public DtWidgetLabel
   {
   public:

      DtOsgWidgetLabel( DtDe& de, DtUniqueID id );

      virtual ~DtOsgWidgetLabel();

      virtual void setOverlay( unsigned int layer );

      virtual unsigned int overlay() const;

      virtual void setOrderGroup( unsigned int group );

      virtual unsigned int orderGroup() const;

      virtual void setPosition( float x, float y, float z, float w = 0 );

      virtual void setText( const DtUnicode& string );

      virtual void setFont( const std::string& font, float size );

      virtual void setFontScale( float scale );

      int fontScale() const;

      virtual void setBackgroundImage( const std::string& filename );
      virtual void setBackgroundImage( const std::string& filename,
         float left, float right, float bottom, float top );

      virtual void setTextColor( float r,float g,float b, float a );

      virtual void setColor( float r, float g, float b, float a );

      virtual void setOrigin( float originX, float originY);

      virtual void setSize( float w, float h);

      virtual void setPadding( float paddingX, float paddingY );

      virtual void setModelDefinition( const std::string& str );

      virtual void setTextAlignment( DtWidgetLabel::HorizontalAlignment ha );

      virtual void setGlyphCenterPolicy( DtWidgetLabel::GlyphCenterPolicy gcp );

      virtual void setEventsEnabled( bool enabled );

      virtual void setVisible( bool visible );

      virtual void setBoundsLength( int len );

      virtual void setRotation( float angle );

   protected:

      void updateBounds( bool calculateText );
      void updateTextBounds( DtBoundingBox box, bool calculateText );
      void updateFont( const std::string& font );

   protected:

      osg::ref_ptr<osg::Texture> myTexture;
      DtSprite* mySprite;
      DtTextProxy* myText;
      DtBoundingBox myTextBounds;
      unsigned int myOverlay;
      float myWidth;
      float myHeight;
      float myOriginX;
      float myOriginY;
      float myPaddingX;
      float myPaddingY;
      float myRotation;
      unsigned int myGroup;
      float myFontScale;
      int myFontSize;
      int myBoundsLength;
      GlyphCenterPolicy myCenterPolicy;

   };

}