mi32/mg2binary.h

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/******************************************************************************
 * \file mi32/mg2binary.h
 * \brief A base class for all binary devices
 *
 * \if NODOC
 * $Log: mg2binary.h_v $
 * Revision 1.4  2011/11/11 14:30:07  mju
 * Make context nested and clean up.
 *
 * Revision 1.3  2011/10/26 17:57:45  mju
 * Add frame buffer support.
 *
 * Revision 1.2  2003/12/15 20:37:00  dwilliss
 * compute region should be const
 *
 * Revision 1.1  2003/12/15 17:55:32  dwilliss
 * Initial revision
 * \endif
 */
 
#ifndef INC_MI32_MG2BINARY_H
#define INC_MI32_MG2BINARY_H

#ifndef INC_MI32_MGD2_H
#include <mi32/mgd2.h>
#endif


#ifndef GENERATING_DOXYGEN_OUTPUT
class BINARYTOREGIONINTERFACE;
#endif


namespace MGD {

class DEVICE_BINARY : public MGD::DEVICE {
   public:

      DEVICE_BINARY ();

      virtual ~DEVICE_BINARY ();

      void ClearAll (
         ) { SetAll(false); }

      // Compute a region which encloses all the 1 values.
      ERRVALUE ComputeRegion (
         BINARYTOREGIONINTERFACE &bintoreg
         ) const;
         
      bool GetRange (
         INT32 x,
         INT32 y,
         INT32 x2,            
         INT32& endx       
         ) const {
         return (v_GetRange(x, y, x2, endx));
         }
         
      bool GetValue (
         INT32 x,
         INT32 y
         ) const { return (v_GetValue(x, y)); }
         
      void SetAll (
         bool value = true
         ) { v_SetAll(value); }

   protected:

      class CONTEXT : public MGD::CONTEXT {
         public:
            virtual ~CONTEXT();

         protected:
            CONTEXT (
               MGD::DEVICE_BINARY *pDevice
               );
         private:
            #ifndef GENERATING_DOXYGEN_OUTPUT
            typedef MGD::CONTEXT BASECLASS;
            #endif
         };

   private:
      #ifndef GENERATING_DOXYGEN_OUTPUT
      DEVICE_BINARY (const DEVICE_BINARY&);
      DEVICE_BINARY& operator= (const DEVICE_BINARY&);

      // MGD::DEVICE overrides.
      virtual MGD::PIXEL v_GetColorPixel (const COLOR& color);
      virtual COLORSPACE v_GetColorSpace () const;
      virtual bool v_UseAntiAliasing () const;
      #endif // GENERATING_DOXYGEN_OUTPUT

      // Overridables.

      virtual bool v_GetRange (
         INT32 x,
         INT32 y,
         INT32 x2,         
         INT32& endx       
         ) const = 0;
      
      virtual bool v_GetValue (
         INT32 x,
         INT32 y
         ) const = 0;
         
      virtual void v_SetAll (
         bool value
         ) = 0;

   };


}  // End of namespace

#endif   // INC_MI32_MG2BINARY_H

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