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/*
* This source file is part of libRocket, the HTML/CSS Interface Middleware
*
* For the latest information, see http://www.librocket.com
*
* Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
*
* 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.
*
*/
#ifndef BITMAPFONTDEFINITIONS_H
#define BITMAPFONTDEFINITIONS_H
#include <Rocket/Core/Header.h>
#include <Rocket/Core/Types.h>
#include <Rocket/Core/Dictionary.h>
#include <set>
namespace Rocket {
namespace Core {
namespace BitmapFont {
struct FontInfo
{
String FamilyName;
String Source;
String BitmapSource;
int Size;
Font::Style Style;
Font::Weight Weight;
};
struct CharacterCommonInfo
{
int LineHeight;
int BaseLine;
int ScaleWidth;
int ScaleHeight;
int CharacterCount;
int KerningCount;
};
struct CharacterInfo
{
int Id;
int X;
int Y;
int Width;
int Height;
int XOffset;
int YOffset;
int Advance;
};
struct KerningInfo
{
int FirstCharacterId;
int SecondCharacterId;
int KerningAmount;
};
class BitmapFontDefinitions
{
public:
FontInfo Face;
CharacterCommonInfo CommonCharactersInfo;
CharacterInfo *CharactersInfo;
KerningInfo *KerningsInfo;
int BM_Helper_GetCharacterTableIndex( int unicode_code )
{
return BinarySearch( unicode_code, 0, CommonCharactersInfo.CharacterCount );
}
int BM_Helper_GetXKerning( int left_uni_id, int right_uni_id )
{
for ( int i = 0; i < this->CommonCharactersInfo.KerningCount; i++ )
{
if ( this->KerningsInfo[i].FirstCharacterId == left_uni_id && this->KerningsInfo[i].SecondCharacterId == right_uni_id )
{
return this->KerningsInfo[i].KerningAmount;
}
}
return 0;
}
private:
int BinarySearch( int unicode_code, int min_index, int max_index )
{
if ( abs( max_index - min_index ) <= 1 )
{
if ( this->CharactersInfo[ min_index ].Id == unicode_code )
{
return min_index;
}
else if ( this->CharactersInfo[ max_index ].Id == unicode_code )
{
return max_index;
}
else
{
return -1;
}
}
else
{
int mid_index = ( min_index + max_index ) / 2;
if ( this->CharactersInfo[ mid_index ].Id == unicode_code )
{
return mid_index;
}
else if ( this->CharactersInfo[ mid_index ].Id > unicode_code )
{
return BinarySearch( unicode_code, min_index, mid_index );
}
else
{
return BinarySearch( unicode_code, mid_index, max_index );
}
}
}
};
}
}
}
#endif
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