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FXGIFCursor.h

00001 /********************************************************************************
00002 *                                                                               *
00003 *                        G I F   C u r so r   O b j e c t                       *
00004 *                                                                               *
00005 *********************************************************************************
00006 * Copyright (C) 2000,2004 by Daniel Gehriger.   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: FXGIFCursor.h,v 1.16 2004/01/14 06:26:10 fox Exp $                       *
00023 ********************************************************************************/
00024 #ifndef FXGIFCURSOR_H
00025 #define FXGIFCURSOR_H
00026 
00027 #ifndef FXCURSOR_H
00028 #include "FXCursor.h"
00029 #endif
00030 
00031 namespace FX {
00032 
00033 
00034 /// GIF Cursor class
00035 class FXAPI FXGIFCursor : public FXCursor {
00036   FXDECLARE(FXGIFCursor)
00037 protected:
00038   FXGIFCursor(){}
00039 private:
00040   FXGIFCursor(const FXGIFCursor&);
00041   FXGIFCursor &operator=(const FXGIFCursor&);
00042 public:
00043 
00044   /**
00045   * Construct a cursor from memory stream in Compuserve GIF format.
00046   * Hot spot may be specified using hx and hy parameters, since the GIF
00047   * format does not specify a hot spot. The image must be smaller than
00048   * 32x32 pixels.
00049   */ 
00050   FXGIFCursor(FXApp* a,const void* pix,FXint hx=0,FXint hy=0);
00051 
00052   /// Save pixel data only, in GIF format
00053   virtual FXbool savePixels(FXStream& store) const;
00054 
00055   /// Load pixel data only, in GIF format
00056   virtual FXbool loadPixels(FXStream& store);
00057 
00058   /// Destroy
00059   virtual ~FXGIFCursor(){}
00060   };
00061 
00062 
00063 /**
00064 * Load an GIF (Graphics Interchange Format) file from a stream.
00065 * Upon successful return, the pixel array and size are returned.
00066 * If an error occurred, the pixel array is set to NULL.
00067 */
00068 extern FXAPI FXbool fxloadGIF(FXStream& store,FXColor*& data,FXint& width,FXint& height);
00069 
00070 
00071 /**
00072 * Save an GIF (Graphics Interchange Format) file to a stream.
00073 */
00074 extern FXAPI FXbool fxsaveGIF(FXStream& store,const FXColor *data,FXint width,FXint height);
00075 
00076 }
00077 
00078 #endif

Copyright © 1997-2004 Jeroen van der Zijp