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customcursor.h

00001 /*
00002     Copyright (C) 2004 by Jorrit Tyberghein
00003               (C) 2004 by Frank Richter
00004 
00005     This library is free software; you can redistribute it and/or
00006     modify it under the terms of the GNU Library General Public
00007     License as published by the Free Software Foundation; either
00008     version 2 of the License, or (at your option) any later version.
00009 
00010     This library is distributed in the hope that it will be useful,
00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013     Library General Public License for more details.
00014 
00015     You should have received a copy of the GNU Library General Public
00016     License along with this library; if not, write to the Free
00017     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00018 */
00019 
00020 #ifndef __CS_CANVAS_WIN32CANVASCOMMON_CUSTOMCURSOR_H__
00021 #define __CS_CANVAS_WIN32CANVASCOMMON_CUSTOMCURSOR_H__
00022 
00023 #include "csextern.h"
00024 #include "csutil/hash.h"
00025 #include "csutil/hashhandlers.h"
00026 #include "csgfx/rgbpixel.h"
00027 
00028 class CS_CSPLUGINCOMMON_W32_EXPORT csWin32CustomCursors
00029 {
00030   struct CachedCursor
00031   {
00032     HCURSOR cursor;
00033     bool destroyAsIcon;
00034 
00035     CachedCursor ()
00036     {
00037       cursor = 0;
00038       destroyAsIcon = false;
00039     }
00040     CachedCursor (HCURSOR h, bool b) : cursor (h), destroyAsIcon (b) {}
00041   };
00042   csHash<CachedCursor, csStrKey, csConstCharHashKeyHandler> cachedCursors;
00043   csArray<CachedCursor> blindCursors;
00044 
00045   CachedCursor CreateMonoCursor (iImage* image, const csRGBcolor* keycolor, 
00046     int hotspot_x, int hotspot_y);
00047 public:
00048   ~csWin32CustomCursors ();
00049 
00050   HCURSOR GetMouseCursor (iImage* image, const csRGBcolor* keycolor, 
00051     int hotspot_x, int hotspot_y, csRGBcolor fg, csRGBcolor bg);
00052 private:
00053 
00054   CachedCursor CreateCursor (iImage* image, const csRGBcolor* keycolor,
00055     int hotspot_x, int hotspot_y);
00056 };
00057 
00058 #endif // __CS_CANVAS_WIN32CANVASCOMMON_CUSTOMCURSOR_H__
00059 

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