FXImage.h

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/********************************************************************************
*                                                                               *
*                             I m a g e    O b j e c t                          *
*                                                                               *
*********************************************************************************
* Copyright (C) 1997,2006 by Jeroen van der Zijp.   All Rights Reserved.        *
*********************************************************************************
* This library is free software; you can redistribute it and/or                 *
* modify it under the terms of the GNU Lesser General Public                    *
* License as published by the Free Software Foundation; either                  *
* version 2.1 of the License, or (at your option) any later version.            *
*                                                                               *
* 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             *
* Lesser General Public License for more details.                               *
*                                                                               *
* You should have received a copy of the GNU Lesser General Public              *
* License along with this library; if not, write to the Free Software           *
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.    *
*********************************************************************************
* $Id: FXImage.h,v 1.64 2006/01/22 17:58:05 fox Exp $                           *
********************************************************************************/
#ifndef FXIMAGE_H
#define FXIMAGE_H

#ifndef FXDRAWABLE_H
#include "FXDrawable.h"
#endif

namespace FX {


enum {
  IMAGE_KEEP       = 0x00000001,      
  IMAGE_OWNED      = 0x00000002,      
  IMAGE_DITHER     = 0,               
  IMAGE_NEAREST    = 0x00000004,      
  IMAGE_OPAQUE     = 0x00000008,      
  IMAGE_ALPHACOLOR = 0x00000010,      
  IMAGE_SHMI       = 0x00000020,      
  IMAGE_SHMP       = 0x00000040,      
  IMAGE_ALPHAGUESS = 0x00000080       
  };


class FXDC;
class FXDCWindow;


class FXAPI FXImage : public FXDrawable {
  FXDECLARE(FXImage)
  friend class FXDC;
  friend class FXDCWindow;
protected:
  FXColor *data;        // Pixel data
  FXuint   options;     // Options
private:
#ifdef WIN32
  virtual FXID GetDC() const;
  virtual int ReleaseDC(FXID) const;
#endif
#ifndef WIN32
  void render_true_32(void *xim,FXuchar *img);
  void render_true_24(void *xim,FXuchar *img);
  void render_true_16_fast(void *xim,FXuchar *img);
  void render_true_16_dither(void *xim,FXuchar *img);
  void render_true_8_fast(void *xim,FXuchar *img);
  void render_true_8_dither(void *xim,FXuchar *img);
  void render_true_N_fast(void *xim,FXuchar *img);
  void render_true_N_dither(void *xim,FXuchar *img);
  void render_index_4_fast(void *xim,FXuchar *img);
  void render_index_4_dither(void *xim,FXuchar *img);
  void render_index_8_fast(void *xim,FXuchar *img);
  void render_index_8_dither(void *xim,FXuchar *img);
  void render_index_N_fast(void *xim,FXuchar *img);
  void render_index_N_dither(void *xim,FXuchar *img);
  void render_gray_8_fast(void *xim,FXuchar *img);
  void render_gray_8_dither(void *xim,FXuchar *img);
  void render_gray_N_fast(void *xim,FXuchar *img);
  void render_gray_N_dither(void *xim,FXuchar *img);
  void render_mono_1_fast(void *xim,FXuchar *img);
  void render_mono_1_dither(void *xim,FXuchar *img);
#endif
protected:
  FXImage();
private:
  FXImage(const FXImage&);
  FXImage &operator=(const FXImage&);
public:

  FXImage(FXApp* a,const FXColor *pix=NULL,FXuint opts=0,FXint w=1,FXint h=1);

  void setOptions(FXuint opts);

  FXuint getOptions() const { return options; }

  virtual void setData(FXColor *pix,FXuint opts=0);

  virtual void setData(FXColor *pix,FXuint opts,FXint w,FXint h);

  FXColor* getData() const { return data; }

  FXColor getPixel(FXint x,FXint y) const { return data[y*width+x]; }

  void setPixel(FXint x,FXint y,FXColor color){ data[y*width+x]=color; }

  bool hasAlpha() const;

  virtual void create();

  virtual void detach();

  virtual void destroy();

  virtual void restore();

  virtual void render();

  virtual void release();

  virtual void resize(FXint w,FXint h);

  virtual void scale(FXint w,FXint h,FXint quality=0);

  virtual void mirror(bool horizontal,bool vertical);

  virtual void rotate(FXint degrees);

  virtual void crop(FXint x,FXint y,FXint w,FXint h,FXColor color=0);

  virtual void fill(FXColor color);

  virtual void fade(FXColor color,FXint factor=255);

  virtual void xshear(FXint shear,FXColor clr=0);

  virtual void yshear(FXint shear,FXColor clr=0);

  virtual void hgradient(FXColor left,FXColor right);

  virtual void vgradient(FXColor top,FXColor bottom);

  virtual void gradient(FXColor topleft,FXColor topright,FXColor bottomleft,FXColor bottomright);

  virtual void blend(FXColor color);

  virtual void save(FXStream& store) const;

  virtual void load(FXStream& store);

  virtual bool savePixels(FXStream& store) const;

  virtual bool loadPixels(FXStream& store);

  virtual ~FXImage();
  };

}

#endif

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(C) 2002-2009 Niall Douglas. Some parts (C) to assorted authors.