LayerComponent.hpp

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/****************************************************************************\
 *                                 VRVis                                    *
 *                      http://vrvis.sourceforge.net                        *
 *                       (C) 2004 by Alex Loeffler                          *
 *                 mailto:aloeffler@users.sourceforge.net                   *
 ****************************************************************************
 *                                License                                   *
 *                                                                          *
 * This library is free software; you can redistribute it and/or modify it  *
 * under the terms of the GNU Library General Public License as published   *
 * by the Free Software Foundation, version 2.                              *
 *                                                                          *
 * This library is distributed in the hope that it will be useful, but      *
 * WITHOUT ANY WARRANTY; without even the implied warranty of               *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU        *
 * Library General Public License for more details.                         *
 *                                                                          *
 * You should have received a copy of the GNU Library General Public        *
 * License along with this library; if not, write to the Free Software      *
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                *
\****************************************************************************/

#ifndef LAYER_COMP_HPP
#define LAYER_COMP_HPP

#include <map>
#include <vector>
#include "ColorDataDefs.hpp"
#include "Drawable.hpp"
#include "Selectable.hpp"

#include "Common.hpp"

namespace vrvis
{

class Layer;
class RasterData;
class Texture;

class LayerComponent : public Drawable, public Selectable
{
  // ================================================================== PUBLIC

  public:

  // ----------------------------------------------- Constructor & Destructor.

  LayerComponent(RasterData* pRasterData0,
                 eColor color0,
                 RasterData* pRasterData1 = 0,
                 eColor color1 = NONE,
                 RasterData* pRasterData2 = 0,
                 eColor color2 = NONE);

  ~LayerComponent(void);

  // -------------------------------------------------------------- Accessors.

  float getRelativeOriginX(void) const;
  float getRelativeOriginY(void) const;
  float getRelativeSizeX(void) const;
  float getRelativeSizeY(void) const;

  double getLowerTexLimit(void) const;
  double getUpperTexLimit(void) const;

  const std::vector<Texture*>& getTextures(void) const;

  // --------------------------------------------------------- Transformation.

  void moveTo(const float cRelativeOriginX, const float cRelativeOriginY);
  void resizeTo(const float cRelativeSizeX, const float cRelativeSizeY);

  // -------------------------- Data Initialization (Inherited from Drawable).

  virtual void init(void);

  // -------------------- GL Context Initialization (Inherited from Drawable).

  virtual void contextInit(void);

  // ---------------------------- GL Context Update (Inherited from Drawable).

  virtual void contextUpdate(void);

  // ----------------------------------- GL Drawing (Inherited from Drawable).

  virtual void draw(void);

  // ================================================================= PRIVATE

  private:

  // ---------------------------------------------------------------- Friends.

  friend class Layer;

  // --------------------------------------------------------------- Typedefs.

  typedef std::vector<Texture*> TextureVector;

  // ---------------------------------------------------------- Texture Stuff.

  void prepareTextures(void);

  void drawTextures(void);

  // ---------------------------------------------------------------- Members.

  vrvis::ColorDataMap mColorDataMap;
  TextureVector mTextures;

  float mRelativeOriginX;  
  float mRelativeOriginY;  
  float mRelativeSizeX;    
  float mRelativeSizeY;    

  int mPixelsX;            
  int mPixelsY;            
};

}  // End namespace.

#endif // LAYER_COMP_HPP

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