FXImage.h

/********************************************************************************
*                                                                               *
*                             I m a g e    O b j e c t                          *
*                                                                               *
*********************************************************************************
* Copyright (C) 1997,2024 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 3 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 program.  If not, see <http://www.gnu.org/licenses/>          *
********************************************************************************/
#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,      
  IMAGE_THRESGUESS = 0x00000100       
  };


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;
#else
  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=nullptr,FXuint opts=0,FXint w=1,FXint h=1);

  void setOptions(FXuint opts);

  FXuint getOptions() const { return options; }

  void setOwned(FXbool owned);

  FXbool isOwned() const;

  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; }

  FXbool 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(FXbool horizontal,FXbool 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 invert();

  virtual void colorize(FXColor color);

  virtual FXbool savePixels(FXStream& store) const;

  virtual FXbool loadPixels(FXStream& store);

  virtual void save(FXStream& store) const;

  virtual void load(FXStream& store);

  virtual ~FXImage();
  };

}

#endif