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frenderer.h

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00001 /*
00002 Copyright (c) 2002 Xavier Trochu
00003 
00004 This software is provided 'as-is', without any express or implied warranty. In no event
00005 will the authors be held liable for any damages arising from the use of this software.
00006 
00007 Permission is granted to anyone to use this software for any purpose, including commercial
00008 applications, and to alter it and redistribute it freely, subject to the following
00009 restrictions:
00010 
00011 1. The origin of this software must not be misrepresented; you must not claim that you
00012    wrote the original software. If you use this software in a product, an acknowledgment
00013    in the product documentation would be appreciated but is not required.
00014 
00015 2. Altered source versions must be plainly marked as such, and must not be misrepresented 
00016    as being the original software.
00017 
00018 3. This notice may not be removed or altered from any source distribution.
00019 */
00020 #ifndef __FRENDERER_H_
00021 #define __FRENDERER_H_
00022 
00023 #ifdef HAVE_CONFIG_H
00024 #include "config.h"
00025 #endif
00026 
00027 #ifdef DEBUG
00028 # ifndef NO_DEBUG_FONT_RENDERER
00029 #  define DEBUG_FONT_RENDERER
00030 # endif
00031 #else
00032 # ifdef DEBUG_FONT_RENDERER
00033 #  error DEBUG_FONT_RENDERER defined without DEBUG
00034 # endif
00035 #endif
00036 
00037 #include <vector>
00038 #include <string>
00039 #include <stdexcept>
00040 #include "brenderer.h"
00041 #include "rect.h"
00042 #include "blitter.h"
00043 
00054 class font_renderer : public base_renderer {
00055 private:
00056     int _nb_frames; 
00057     int _color;     
00058     bool _original; 
00059     std::vector<std::pair<int, int> > _sizes;   
00060     std::vector<char *> _chars;         
00061 public:
00066     font_renderer(bool use_original_colors = false) throw();
00067     virtual ~font_renderer() throw();
00068     virtual bool wait(int ms) throw() { return true; };
00069 protected:
00070     virtual void save(int frame = -1);
00077     int char_width(int c) const throw(std::exception);
00084     int string_width(const std::string & str) const throw(std::exception);
00091     int char_height(int c) const throw(std::exception);
00098     int string_height(const std::string & str) const throw(std::exception);
00111     int draw_char(char * buffer, const point & size, int x, int y, int c) const throw(std::exception);
00122     void draw_substring(const std::string & str, char * buffer, const point & size, int x, int y) const throw(std::exception);
00123 public:
00130     bool set_color(int c) throw() { _color = c; return true; }
00150     bool draw_string_centered(const std::string & str, char * buffer, const point & size, int y, int xmin, int width, int offset) const throw(std::exception);
00161     bool draw_string_absolute(const std::string & str, char * buffer, const point & size, int x, int y) const throw(std::exception);
00162 };
00163 
00164 #endif

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