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FXBitmap.h

00001 /********************************************************************************
00002 *                                                                               *
00003 *                             B i t m a p    O b j e c t                        *
00004 *                                                                               *
00005 *********************************************************************************
00006 * Copyright (C) 1998,2004 by Jeroen van der Zijp.   All Rights Reserved.        *
00007 *********************************************************************************
00008 * This library is free software; you can redistribute it and/or                 *
00009 * modify it under the terms of the GNU Lesser General Public                    *
00010 * License as published by the Free Software Foundation; either                  *
00011 * version 2.1 of the License, or (at your option) any later version.            *
00012 *                                                                               *
00013 * This library is distributed in the hope that it will be useful,               *
00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of                *
00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU             *
00016 * Lesser General Public License for more details.                               *
00017 *                                                                               *
00018 * You should have received a copy of the GNU Lesser General Public              *
00019 * License along with this library; if not, write to the Free Software           *
00020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.    *
00021 *********************************************************************************
00022 * $Id: FXBitmap.h,v 1.27 2004/02/08 17:17:33 fox Exp $                          *
00023 ********************************************************************************/
00024 #ifndef FXBITMAP_H
00025 #define FXBITMAP_H
00026 
00027 #ifndef FXDRAWABLE_H
00028 #include "FXDrawable.h"
00029 #endif
00030 
00031 namespace FX {
00032 
00033 // Image rendering hints
00034 enum {
00035   BITMAP_KEEP       = 0x00000001,       // Keep pixel data in client
00036   BITMAP_OWNED      = 0x00000002,       // Pixel data is owned by image
00037   BITMAP_SHMI       = 0x00000020,       // Using shared memory image
00038   BITMAP_SHMP       = 0x00000040        // Using shared memory pixmap
00039   };
00040 
00041 
00042 // Forward declarations
00043 class FXDC;
00044 class FXDCWindow;
00045 class FXDrawable;
00046 class FXTopWindow;
00047 
00048 
00049 /**
00050 * Bitmap is a one bit/pixel image used for patterning and
00051 * stippling operations.
00052 */
00053 class FXAPI FXBitmap : public FXDrawable {
00054   FXDECLARE(FXBitmap)
00055   friend class FXDC;
00056   friend class FXDCWindow;
00057   friend class FXDrawable;
00058   friend class FXTopWindow;
00059 private:
00060 #ifdef WIN32
00061   virtual FXID GetDC() const;
00062   virtual int ReleaseDC(FXID) const;
00063 #endif
00064 protected:
00065   FXuchar *data;                // Pixel data
00066   FXuint   options;             // Options
00067 protected:
00068   FXBitmap();
00069 private:
00070   FXBitmap(const FXBitmap&);
00071   FXBitmap &operator=(const FXBitmap&);
00072 public:
00073 
00074   /// Create an image
00075   FXBitmap(FXApp* a,const void *pix=NULL,FXuint opts=0,FXint w=1,FXint h=1);
00076 
00077   /// Create bitmap
00078   virtual void create();
00079 
00080   /// Detach from bitmap
00081   virtual void detach();
00082 
00083   /// Destroy bitmap
00084   virtual void destroy();
00085 
00086   /// Render pixels
00087   virtual void render();
00088 
00089   /// Release the client-side pixels buffer, freeing it if it was owned.
00090   virtual void release();
00091 
00092   /// Get pixel at x,y
00093   FXbool getPixel(FXint x,FXint y) const;
00094 
00095   /// Change pixel at x,y
00096   void setPixel(FXint x,FXint y,FXbool color);
00097 
00098   /// Resize bitmap to the specified width and height; the contents become undefined
00099   virtual void resize(FXint w,FXint h);
00100 
00101   /// Save object to stream
00102   virtual void save(FXStream& store) const;
00103 
00104   /// Load object from stream
00105   virtual void load(FXStream& store);
00106 
00107   /// Save pixel data only
00108   virtual FXbool savePixels(FXStream& store) const;
00109 
00110   /// Load pixel data only
00111   virtual FXbool loadPixels(FXStream& store);
00112 
00113   /// Cleanup
00114   virtual ~FXBitmap();
00115   };
00116 
00117 }
00118 
00119 #endif

Copyright © 1997-2004 Jeroen van der Zijp