DtBaseTextAttribute.h

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/*****************************************************************************
 * Copyright (c) 2012 MAK Technologies, Inc.
 * All rights reserved.
 *****************************************************************************/


#pragma once

#include <vrvGraphics/DtFont.h>
#include <vrvOsg/DtAttribute.h>
#include <osg/Vec2>

namespace makVrv
{

   class DtDe;
   class DtTextProxy;

   class DT_DLL_VRVOSG DtBaseTextAttribute : public DtAttribute
   {
   public:

      DtBaseTextAttribute( DtDe& de );

      virtual ~DtBaseTextAttribute();

      virtual void setString( const DtUnicode& str );

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

      virtual void getMinSize( double& xOut, double& yOut );

      virtual void setOffset( double x, double y );

      virtual void setVisible( bool isVisible );

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

      virtual void setFont( const std::string& fontFile, float sizeInPoints );

      virtual bool visible() const;

      virtual void setSize( double x, double y );

      static float pointsToPixelsAprox( float points );

      virtual void setOverlay( unsigned int overlayId );

      virtual void setGroup( unsigned int group );

      virtual void setForegroundGroup( unsigned int group );

      virtual void setBackgroundGroup( unsigned int group );

      virtual float fontSize();

      virtual const std::string& fontFile();

      virtual void setShadowText( bool enabled );

   protected:

      void setStringForText( const DtUnicode& str, DtTextProxy& text );

      void setFontForText( const std::string& fontFile, float sizeInPoints, DtTextProxy& text );

      void setOffsetForText( double x, double y, DtTextProxy& text );

      void setVisibleForText( DtTextProxy& text );

      void createText();

   protected:

      DtDe& myDe;
      float myColorR, myColorG, myColorB, myColorA;
      std::string myFontFile;

      float myFontSize;
      float myWidth;

      float myOffsetX;
      float myOffsetY;

      float myWorldX;
      float myWorldY;
      float myWorldZ;
      float myWorldW;

      double mySizeX;
      double mySizeY;
      DtFont::TextAlignement myAlignment;
      DtTextProxy* myText;
      DtTextProxy* myShadowText;

      DtUnicode myString;

      unsigned int myOverlayId;
      unsigned int myForegroundOverlayGroup;
      unsigned int myBackgroundOverlayGroup;

      bool myShadowTextFlag;

   };

}