sprint 1-alpha
sprint/image/font.h
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00001 /******************************************************************************
00002 *   sprint::font
00003 *
00004 *   Copyright (C) 2005-2011  Paolo Medici <www.pmx.it>
00005 *
00006 *  This library is free software; you can redistribute it and/or
00007 *  modify it under the terms of the GNU Lesser General Public
00008 *  License as published by the Free Software Foundation; either
00009 *  version 2.1 of the License, or (at your option) any later version.
00010 *
00011 *  This library is distributed in the hope that it will be useful,
00012 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00013 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014 *  Lesser General Public License for more details.
00015 *
00016 *  You should have received a copy of the GNU Lesser General Public
00017 *  License along with this library; if not, write to the Free Software
00018 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
00019 *
00020 *******************************************************************************/
00021 
00022 #ifndef _SPRINT_BITMAP_FONT_H
00023 #define _SPRINT_BITMAP_FONT_H
00024 
00029 #include <sprint/image/image.h>
00030 #include <vector>
00031 
00032 namespace sprint {
00033 
00035 struct CharDescr
00036     {
00037         CharDescr() : srcX(0), srcY(0), srcW(0), srcH(0), xOff(0), yOff(0), xAdv(0), page(0) {}
00038     
00039         short srcX; 
00040         short srcY; 
00041         short srcW; 
00042         short srcH; 
00043         short xOff; 
00044         short yOff; 
00045         short xAdv; 
00046         short page; 
00047         unsigned int chnl; 
00048     };
00049 
00051 struct kerning_pair {
00052         int first, second;
00053         int xOff;
00054 };
00055 
00057 struct font {
00058 
00059 private:
00060              
00061       void AddChar(int id, int x, int y, int w, int h, int xoffset, int yoffset, int xadvance, int page, int chnl);
00062 
00063 public:
00065       int base;
00067       unsigned int txtW, txtH;
00069       int nPages;
00070       /*** TODO **/
00071       int packed, encoded;
00072 
00074       int nChars;
00075 
00077       CharDescr def;
00079           std::vector<CharDescr> chars;
00081           sprint::iimage texture;
00082 
00084           std::vector<kerning_pair> kernings;
00085 
00086 public:      
00087              
00088       font();
00089       ~font();
00090 
00091      // Load a Bitmap Font file
00092       bool LoadDescription(const char *txt);
00093 
00095           void GetTextSize(const char *txt, int *width, int*height) const;
00096 
00098           const CharDescr & GetChar(int c) const;
00099 
00100 
00101       };
00102 
00104 enum TextAlign {
00105         TextAlign_Default = 0,
00106 
00107         TextAlign_Left = 1,
00108         TextAlign_Right = 2,
00109         TextAlign_HCenter = 3,
00110         TextAlign_HMask = 3,
00111 
00112         TextAlign_Top = 4,
00113         TextAlign_Bottom = 8,
00114         TextAlign_VCenter = 12,
00115         TextAlign_VMask = 12
00116 };
00117 
00119 void print(imageview & dst, int x, int y, const char *text, unsigned int color, const font & font, int text_align = TextAlign_Default);
00120       
00121 
00122 }
00123 
00124 #endif
00125 
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