FXBitmap.h

/********************************************************************************
*                                                                               *
*                             B i t m a p    O b j e c t                        *
*                                                                               *
*********************************************************************************
* Copyright (C) 1998,2022 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 FXBITMAP_H
#define FXBITMAP_H

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

namespace FX {


// Image rendering hints
enum {
  BITMAP_KEEP       = 0x00000001,       // Keep pixel data in client
  BITMAP_OWNED      = 0x00000002,       // Pixel data is owned by image
  BITMAP_SHMI       = 0x00000020,       // Using shared memory image
  BITMAP_SHMP       = 0x00000040        // Using shared memory pixmap
  };


// Forward declarations
class FXDC;
class FXDCWindow;


class FXAPI FXBitmap : public FXDrawable {
  FXDECLARE(FXBitmap)
  friend class FXDC;
  friend class FXDCWindow;
private:
#ifdef WIN32
  virtual FXID GetDC() const;
  virtual int ReleaseDC(FXID) const;
#endif
protected:
  FXuchar *data;        // Pixel data
  FXint    bytewidth;   // Number of bytes across
  FXuint   options;     // Options
protected:
  FXBitmap();
private:
  FXBitmap(const FXBitmap&);
  FXBitmap &operator=(const FXBitmap&);
public:

  FXBitmap(FXApp* a,const FXuchar *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(FXuchar *pix,FXuint opts=0);

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

  FXuchar* getData() const { return data; }

  FXbool getPixel(FXint x,FXint y) const { return (FXbool)((data[y*bytewidth+(x>>3)]>>(x&7))&1); }

  void setPixel(FXint x,FXint y,FXbool color){ color ? data[y*bytewidth+(x>>3)]|=(1<<(x&7)) : data[y*bytewidth+(x>>3)]&=~(1<<(x&7)); }

  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);

  virtual void mirror(FXbool horizontal,FXbool vertical);

  virtual void rotate(FXint degrees);

  virtual void crop(FXint x,FXint y,FXint w,FXint h,FXbool color=false);

  virtual void fill(FXbool color);

  virtual void save(FXStream& store) const;

  virtual void load(FXStream& store);

  virtual FXbool savePixels(FXStream& store) const;

  virtual FXbool loadPixels(FXStream& store);

  virtual ~FXBitmap();
  };

}

#endif