DtOsgTexturizer.h

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


#pragma once

#include <vrvOsg/vrvOsg.h>
#include <osg/Matrix>
#include <osg/BoundingBox>
#include <osg/Texture>
#include <osg/TexEnv>
#include <osgDB/ReaderWriter>

namespace osg
{
   class Node;
   class Image;
}

namespace makVrv
{
   class DtDe;

   class DT_DLL_VRVOSG DtOsgTexturizer
   {
   public:

      DtOsgTexturizer( DtDe& de );

      virtual void drapeTexture(osg::Node* node, const std::string& definition, int textureunit = 0);

      virtual void drapeTexture(osg::Node* node, const std::string& definition, 
         const std::vector<double>& scale, const std::vector<double>& offset, 
         osg::TexEnv::Mode blendmode = osg::TexEnv::MODULATE,
         osg::Texture::WrapMode wrapMode = osg::Texture::REPEAT, int textureunit = 0);

      virtual void colorizeByElevation(osg::Node* node, 
         const std::string& definition, int textureunit = 0);

      virtual void drawContours(osg::Node* node, const std::string& definition, 
         int textureunit = 0);

      virtual void enableAutoTexturing(osg::Node* node);

      virtual void blankMaterial(osg::Node* node, int minunit=0, int maxunit=3);

      virtual void defaultDrapeParameters(osg::Node* node,
         const std::string& definition, double& xScale, double& yScale, 
         double& xOffset, double& yOffset, osg::Texture::WrapMode& wrapMode,
         osg::TexEnv::Mode& blendMode);

      virtual void reset(osg::Node* node, int minunit=0, int maxunit=3);

      virtual void resetUnit(osg::Node* node, int unit);

   protected:

      //Create a gradient image.
      osg::Image* createGradientImageRGBA(const std::string& def, int resolution = 256);

      virtual void graphBoundingBox(const osg::Node* node, 
         osg::BoundingBox &bbox) const;

      virtual void project2dTexture(osg::Node* node, const std::string& texdef,
         const osg::Matrix& mat, osg::Texture::WrapMode wrapmode, 
         osg::TexEnv::Mode blendmode, unsigned int texunit);

      virtual osgDB::ReaderWriter::Options* setupTerrainReadImageOptions();

      virtual void project1dTexture(osg::Node* node, const std::string& texdef,
         const osg::Matrix& mat, osg::Texture::WrapMode wrapmode,
         osg::TexEnv::Mode blendmode, unsigned int texunit);

      virtual void rescaleTexture(osg::Node* node, const osg::Matrix& mat, 
         osg::TexEnv::Mode blendmode, unsigned int texunit);

      virtual bool isNameTextureExempt(const std::string& name) const;

      virtual osg::Image* convertImageToRGBA(osg::Image* img);

      DtDe& myDe;
   };
}