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/*
* gltt graphics library
* Copyright (C) 1998-1999 Stephane Rehel
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "FTInstance.h"
#include "FTFace.h"
#include "FTGlyph.h"
#include "freetype.h"
/////////////////////////////////////////////////////////////////////////////
FTGlyph::FTGlyph( FTInstance* _instance )
{
instance= _instance;
glyph= 0;
metrics= new TT_Glyph_Metrics;
}
/////////////////////////////////////////////////////////////////////////////
FTGlyph::~FTGlyph()
{
delete metrics;
metrics= 0;
if( glyph != 0 )
{
TT_Done_Glyph(*glyph);
delete glyph;
glyph= 0;
}
instance= 0;
}
/////////////////////////////////////////////////////////////////////////////
GLTTboolean FTGlyph::create( int _ascii_code )
{
ascii_code= _ascii_code;
if( glyph != 0 )
{
delete glyph;
glyph= 0;
}
if( instance == 0 )
return GLTT_FALSE;
if( instance->getInstance() == 0 )
return GLTT_FALSE;
FTFace* face= instance->getFace();
if( face == 0 )
return GLTT_FALSE;
int glyph_index= face->getGlyphIndex(ascii_code);
glyph= new TT_Glyph;
TT_Error err;
err= TT_New_Glyph( *face->getFace(), glyph );
if( err )
{
delete glyph;
glyph= 0;
return GLTT_FALSE;
}
err= TT_Load_Glyph( *(instance->getInstance()),
*glyph, glyph_index, TTLOAD_DEFAULT );
if( err )
{
delete glyph;
glyph= 0;
return GLTT_FALSE;
}
err= TT_Get_Glyph_Metrics( *glyph, metrics );
if( err )
{
delete metrics;
metrics= 0;
return GLTT_FALSE;
}
return GLTT_TRUE;
}
/////////////////////////////////////////////////////////////////////////////
int FTGlyph::getBearingX() const
{
return (metrics==0) ? 0 : metrics->bearingX;
}
/////////////////////////////////////////////////////////////////////////////
int FTGlyph::getBearingY() const
{
return (metrics==0) ? 0 : metrics->bearingY;
// return 0; //(metrics==0) ? 0 : metrics->bearingY;
// metrics.bearingY is left uninitialized by freetype?!
}
/////////////////////////////////////////////////////////////////////////////
int FTGlyph::getAdvance() const
{
return (metrics==0) ? 0 : metrics->advance;
}
/////////////////////////////////////////////////////////////////////////////
GLTTboolean FTGlyph::getBBox( int& xMin, int& yMin,
int& xMax, int& yMax ) const
{
if( metrics == 0 )
return GLTT_FALSE;
TT_BBox& bbox= metrics->bbox; // glyph bounding box
xMin= bbox.xMin;
yMin= bbox.yMin;
xMax= bbox.xMax;
yMax= bbox.yMax;
return GLTT_TRUE;
}
/////////////////////////////////////////////////////////////////////////////
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