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106 lines
2.7 KiB
C++
106 lines
2.7 KiB
C++
/*
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* FTGL - OpenGL font library
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*
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* Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
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* Copyright (c) 2008 Sam Hocevar <sam@zoy.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "config.h"
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#include "FTFace.h"
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#include "FTCharmap.h"
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FTCharmap::FTCharmap(FTFace* face)
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: ftFace(*(face->Face())),
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err(0)
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{
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if(!ftFace->charmap)
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{
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if(!ftFace->num_charmaps)
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{
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// This face doesn't even have one charmap!
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err = 0x96; // Invalid_CharMap_Format
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return;
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}
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err = FT_Set_Charmap(ftFace, ftFace->charmaps[0]);
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}
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ftEncoding = ftFace->charmap->encoding;
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for(unsigned int i = 0; i < FTCharmap::MAX_PRECOMPUTED; i++)
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{
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charIndexCache[i] = FT_Get_Char_Index(ftFace, i);
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}
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}
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FTCharmap::~FTCharmap()
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{
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charMap.clear();
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}
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bool FTCharmap::CharMap(FT_Encoding encoding)
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{
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if(ftEncoding == encoding)
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{
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err = 0;
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return true;
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}
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err = FT_Select_Charmap(ftFace, encoding);
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if(!err)
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{
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ftEncoding = encoding;
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charMap.clear();
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}
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return !err;
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}
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unsigned int FTCharmap::GlyphListIndex(const unsigned int characterCode)
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{
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return charMap.find(characterCode);
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}
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unsigned int FTCharmap::FontIndex(const unsigned int characterCode)
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{
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if(characterCode < FTCharmap::MAX_PRECOMPUTED)
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{
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return charIndexCache[characterCode];
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}
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return FT_Get_Char_Index(ftFace, characterCode);
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}
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void FTCharmap::InsertIndex(const unsigned int characterCode,
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const size_t containerIndex)
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{
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charMap.insert(characterCode, static_cast<FTCharToGlyphIndexMap::GlyphIndex>(containerIndex));
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}
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