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# cstool/bitmasktostr.h

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    00001 /*
    00002     Copyright (C) 2005 by Jorrit Tyberghein
    00003               (C) 2005 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_CSTOOL_BITMASKTOSTR_H__
    00021 #define __CS_CSTOOL_BITMASKTOSTR_H__
    00022
    00027 #include "csutil/csstring.h"
    00028
    00036 class CS_CRYSTALSPACE_EXPORT csBitmaskToString
    00037 {
    00038 public:
    00040   struct MaskNames
    00041   {
    00043     uint bits;
    00045     const char* name;
    00046   };
    00048   CS_DECLARE_STATIC_CLASSVAR_REF(scratch, GetScratch, csString)
    00057   static const char* GetStr (uint mask, const MaskNames* names)
    00058   {
    00059     if (mask == 0)
    00060       return "0";
    00061
    00062     GetScratch().Clear();
    00063     while (names->bits != 0)
    00064     {
    00065       if (mask & names->bits)
    00066       {
    00067         GetScratch() <<  " | " << names->name;
    00068         mask &= ~names->bits;
    00069       }
    00070       names++;
    00071     }
    00072     if (mask != 0)
    00073     {
    00074       GetScratch().AppendFmt (" | %#x", mask);
    00075     }
    00076     return GetScratch().GetData() + 3;
    00077   }
    00078 };
    00079
    00084 #define CS_BITMASKTOSTR_MASK_TABLE_BEGIN(tableName)           \
    00085   static const csBitmaskToString::MaskNames tableName[] = {
    00086
    00090 #define CS_BITMASKTOSTR_MASK_TABLE_DEFINE(def)                \
    00091     {def, #def},
    00093 #define CS_BITMASKTOSTR_MASK_TABLE_END                        \
    00094     {0, 0}                                                    \
    00095   }
    00096
    00099 #endif // __CS_CSTOOL_BITMASKTOSTR_H__