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/*
* FTGL - OpenGL font library
*
* Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
* Copyright (c) 2008 Sam Hocevar <sam@hocevar.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include "FTGL/ftgl.h"
#include "FTGlyphContainer.h"
#include "FTFace.h"
#include "FTCharmap.h"
FTGlyphContainer::FTGlyphContainer(FTFace* f)
: face(f),
err(0)
{
glyphs.push_back(NULL);
charMap = new FTCharmap(face);
}
FTGlyphContainer::~FTGlyphContainer()
{
GlyphVector::iterator it;
for(it = glyphs.begin(); it != glyphs.end(); ++it)
{
delete *it;
}
glyphs.clear();
delete charMap;
}
bool FTGlyphContainer::CharMap(FT_Encoding encoding)
{
bool result = charMap->CharMap(encoding);
err = charMap->Error();
return result;
}
unsigned int FTGlyphContainer::FontIndex(const unsigned int charCode) const
{
return charMap->FontIndex(charCode);
}
void FTGlyphContainer::Add(FTGlyph* tempGlyph, const unsigned int charCode)
{
charMap->InsertIndex(charCode, glyphs.size());
glyphs.push_back(tempGlyph);
}
const FTGlyph* FTGlyphContainer::Glyph(const unsigned int charCode) const
{
unsigned int index = charMap->GlyphListIndex(charCode);
return (index < glyphs.size()) ? glyphs[index] : NULL;
}
FTBBox FTGlyphContainer::BBox(const unsigned int charCode) const
{
return Glyph(charCode)->BBox();
}
float FTGlyphContainer::Advance(const unsigned int charCode,
const unsigned int nextCharCode)
{
unsigned int left = charMap->FontIndex(charCode);
unsigned int right = charMap->FontIndex(nextCharCode);
const FTGlyph *glyph = Glyph(charCode);
if (!glyph)
return 0.0f;
return face->KernAdvance(left, right).Xf() + glyph->Advance();
}
FTPoint FTGlyphContainer::Render(const unsigned int charCode,
const unsigned int nextCharCode,
FTPoint penPosition, int renderMode)
{
unsigned int left = charMap->FontIndex(charCode);
unsigned int right = charMap->FontIndex(nextCharCode);
FTPoint kernAdvance = face->KernAdvance(left, right);
if(!face->Error())
{
unsigned int index = charMap->GlyphListIndex(charCode);
if (index < glyphs.size())
kernAdvance += glyphs[index]->Render(penPosition, renderMode);
}
return kernAdvance;
}
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