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78 lines
2.6 KiB
78 lines
2.6 KiB
//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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#pragma once
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#include <string>
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#include <map>
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#if defined (SG_MAC)
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#include <OpenGL/gl.h>
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#include <GLUT/glut.h>
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#elif defined (_GLES2)
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#include <GLES2/gl2.h>
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#else
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#include <GL/glew.h> // Must be included before <GL/gl.h>
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#include <GL/gl.h>
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#include <GL/glut.h>
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#endif
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/**
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* A class to keep all fonts available for future use.
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* This also assures a font isn't resident more than once.
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*/
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class FGFontCache {
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public:
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FGFontCache ();
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~FGFontCache ();
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bool Set_Font (const std::string& Font_Name,
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const float Size,
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GLuint &Glyph_Texture);
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bool Get_Char (const char Char,
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int &X, int &Y,
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int &Left, int &Bottom,
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int &W, int &H,
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double &X1, double &Y1, // Top (Y1) left (X1)
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double &X2, double &Y2) const; // Bottom (Y2) right (X2)
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private:
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void Get_Pos (const unsigned short ASCII_Code,
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const unsigned short Row,
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const unsigned short Width,
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unsigned int &Line,
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unsigned int &Column) const;
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void Get_Relative_Pos (const unsigned short ASCII_Code,
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const unsigned short Row,
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const unsigned short Width,
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double &X,
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double &Y) const;
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static std::string Get_Size (const float Size);
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static const unsigned short First_Printable_Char;
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static const unsigned short Last_Printable_Char;
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static const unsigned int Texture_Size = 1024;
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FT_Library m_Ft;
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typedef std::map <std::string, FT_Face *> Face_Map_Type;
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Face_Map_Type m_Face_Map;
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FT_Face *m_Current_Face_Ptr;
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char m_Texture[Texture_Size * Texture_Size];
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typedef std::map <std::string, unsigned int> Pos_Map_Type;
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Pos_Map_Type m_Pos_Map;
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unsigned int m_Current_Pos;
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GLuint m_Glyph_Texture;
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};
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