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/*
* gltt graphics library
* Copyright (C) 1998 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 "FTPixmapFont.h"
#include "FTGlyph.h"
#include "FTGlyphPixmap.h"
/////////////////////////////////////////////////////////////////////////////
FTPixmapFont::FTPixmapFont( FTInstance* _instance ): FTFont(_instance)
{
pixmaps= 0;
loaded= 0;
}
/////////////////////////////////////////////////////////////////////////////
FTPixmapFont::~FTPixmapFont()
{
destroy();
}
/////////////////////////////////////////////////////////////////////////////
void FTPixmapFont::destroy()
{
if( pixmaps != 0 )
{
for( int i= 0; i < 256; ++i )
delete pixmaps[i];
delete pixmaps;
pixmaps= 0;
}
delete loaded;
loaded= 0;
}
/////////////////////////////////////////////////////////////////////////////
GLTTboolean FTPixmapFont::create()
{
destroy();
if( ! FTFont::create() )
return GLTT_FALSE;
int i;
pixmaps= new FTGlyphPixmap* [ 256 ];
loaded= new GLTTboolean [ 256 ];
for( i= 0; i < 256; ++i )
{
pixmaps[i]= 0;
loaded[i]= GLTT_FALSE;
}
return GLTT_TRUE;
}
/////////////////////////////////////////////////////////////////////////////
GLTTboolean FTPixmapFont::loadGlyph( int ascii_code )
{
if( ascii_code < 0 || ascii_code > 255 || pixmaps == 0 || loaded == 0 )
return GLTT_FALSE;
if( loaded[ascii_code] )
return GLTT_TRUE;
loaded[ascii_code]= GLTT_TRUE;
FTGlyph* glyph= FTFont::glyphs[ascii_code];
if( glyph == 0 )
return GLTT_FALSE;
FTGlyphPixmap* gpixmap= new FTGlyphPixmap(glyph);
if( ! gpixmap->create() )
{
delete gpixmap;
return GLTT_FALSE;
}
pixmaps[ascii_code]= gpixmap;
return GLTT_TRUE;
}
/////////////////////////////////////////////////////////////////////////////
void FTPixmapFont::load( int from /* = 0 */, int to /* = 255 */ )
{
for( int i= from; i <= to; ++i )
loadGlyph(i);
}
/////////////////////////////////////////////////////////////////////////////
int FTPixmapFont::getWidth( const char* text )
{
if( text == 0 )
return 0;
int w= 0;
for(;;)
{
int ch= (unsigned char) *(text++);
if( ch == 0 )
break;
loadGlyph(ch);
if( pixmaps[ch] == 0 )
continue;
w+= pixmaps[ch]->getAdvance();
}
return w / 64;
}
/////////////////////////////////////////////////////////////////////////////
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