Support embedding textures inside font files

[libs/gl.git] / source / font.h

diff --git a/source/font.h b/source/font.h
index ebaa8e7a7f43f469b7ae1ae246db6d92ad860bde..a2406b9ee043009824dbe1787fd7a05d6b583038 100644 (file)
--- a/source/font.h
+++ b/source/font.h
@@ -1,47 +1,95 @@
-#ifndef FONT_H_
-#define FONT_H_
+/* $Id$
+
+This file is part of libmspgl
+Copyright © 2007  Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+
+#ifndef MSP_GL_FONT_H_
+#define MSP_GL_FONT_H_
 
 #include <map>
 #include <string>
-#include <msp/parser/loader.h>
+#include <msp/datafile/collection.h>
+#include <msp/strings/utf8.h>
 #include "vertexarray.h"
 
 namespace Msp {
 namespace GL {
 
+class PrimitiveBuilder;
 class Texture2D;
 
 class Font
 {
 public:
-       class Loader: public Msp::Parser::Loader
+       class Loader: public DataFile::Loader
        {
+       private:
+               Font &font;
+               DataFile::Collection *coll;
+
        public:
+               typedef DataFile::Collection Collection;
+
                Loader(Font &);
-               ~Loader();
+               Loader(Font &, DataFile::Collection &);
                Font &get_object() { return font; }
+               DataFile::Collection &get_collection();
        private:
-               Font &font;
-
-               void texture(const std::string &);
+               void init();
                void glyph(unsigned);
+               void texture_inline();
        };
 
        Font();
+       ~Font();
+
        void  set_texture(const Texture2D &);
-       void  add_glyph(wchar_t, float, float, float, float, float, float, float, float, float);
+       const Texture2D &get_texture() const;
+       void  add_glyph(unsigned, float, float, float, float, float, float, float, float, float);
        float get_default_size() const { return default_size; }
-       float get_string_width(const std::string &) const;
-       float get_string_width(const std::wstring &) const;
-       void  draw_glyph(wchar_t);
-       void  draw_string(const std::string &) const;
-       void  draw_string(const std::wstring &) const;
-       void  draw_multiline(const std::string &) const;
-       ~Font();
+       float get_ascent() const { return ascent; }
+       float get_descent() const { return descent; }
+       float get_string_width(const std::string &, Codecs::Decoder &) const;
+       void  draw_glyph(unsigned);
+       void  draw_string(const std::string &, Codecs::Decoder &) const;
+       void  draw_string(const std::string &, Codecs::Decoder &, PrimitiveBuilder &) const;
+
+       template<class C>
+       float get_string_width(const std::string &str) const
+       {
+               typename C::Decoder dec;
+               return get_string_width(str, dec);
+       }
+
+       float get_string_width(const std::string &str) const
+       { return get_string_width<Codecs::Utf8>(str); }
+
+       template<class C>
+       void draw_string(const std::string &str) const
+       {
+               typename C::Decoder dec;
+               draw_string(str, dec);
+       }
+
+       void draw_string(const std::string &str) const
+       { draw_string<Codecs::Utf8>(str); }
+
+       template<class C>
+       void draw_string(const std::string &str, PrimitiveBuilder &pb) const
+       {
+               typename C::Decoder dec;
+               draw_string(str, dec, pb);
+       }
+
+       void draw_string(const std::string &str, PrimitiveBuilder &pb) const
+       { return draw_string<Codecs::Utf8>(str, pb); }
+
 private:
        struct Glyph
        {
-               class Loader: public Msp::Parser::Loader
+               class Loader: public Msp::DataFile::Loader
                {
                public:
                        Loader(Glyph &);
@@ -50,31 +98,26 @@ private:
                        Glyph &glyph;
 
                        void texcoords(float, float, float, float);
-                       void size(float, float);
-                       void offset(float, float);
                };
 
-               wchar_t code;
+               unsigned code;
                float x1,y1;
                float x2,y2;
                float w,h;
                float off_x, off_y;
                float advance;
-               unsigned index;
        };
-       typedef std::map<wchar_t, Glyph> GlyphMap;
+       typedef std::map<unsigned, Glyph> GlyphMap;
 
        const Texture2D *tex;
        bool     own_tex;
        float    default_size;
+       float    ascent;
+       float    descent;
        GlyphMap glyphs;
-       VertexArray varray;
 
-       void create_glyph_vertices();
-       void create_glyph_vertices(const Glyph &, VertexArrayBuilder &);
-       void prepare_render() const;
-       void draw_glyph(wchar_t) const;
-       float get_glyph_advance(wchar_t) const;
+       void create_glyph_vertices(const Glyph &, VertexBuilder &, float) const;
+       float get_glyph_advance(unsigned) const;
 };
 
 } // namespace GL