+++ /dev/null
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
-#include <GL/gl.h>
-#include "font.h"
-#include "texture2d.h"
-
-using namespace std;
-
-namespace Msp {
-namespace GL {
-
-Font::Font():
- tex(0),
- default_size(1),
- ascent(1),
- descent(0),
- varray((TEXCOORD2, VERTEX2))
-{ }
-
-void Font::set_texture(const Texture2D &t)
-{
- tex=&t;
-}
-
-void Font::add_glyph(unsigned code, float x1, float y1, float x2, float y2, float w, float h, float ox, float oy, float adv)
-{
- Glyph glyph;
- glyph.code=code;
- glyph.x1=x1;
- glyph.y1=y1;
- glyph.x2=x2;
- glyph.y2=y2;
- glyph.w=w;
- glyph.h=h;
- glyph.off_x=ox;
- glyph.off_y=oy;
- glyph.advance=adv;
- glyph.index=glyphs.size();
- glyphs.insert(GlyphMap::value_type(code, glyph));
-
- RefPtr<VertexArrayBuilder> va_builder=varray.modify();
- create_glyph_vertices(glyph, *va_builder);
-}
-
-float Font::get_string_width(const string &str, Codecs::Decoder &dec) const
-{
- float x=0;
-
- for(string::const_iterator i=str.begin(); i!=str.end();)
- x+=get_glyph_advance(dec.decode_char(str, i));
-
- return x;
-}
-
-void Font::draw_string(const string &str, Codecs::Decoder &dec) const
-{
- prepare_render();
-
- for(string::const_iterator i=str.begin(); i!=str.end();)
- draw_glyph(dec.decode_char(str, i));
-
- glPopMatrix();
-}
-
-void Font::create_glyph_vertices()
-{
- varray.clear();
- RefPtr<VertexArrayBuilder> va_builder=varray.modify();
-
- unsigned n=0;
- for(GlyphMap::iterator i=glyphs.begin(); i!=glyphs.end(); ++i, ++n)
- {
- i->second.index=n;
- create_glyph_vertices(i->second, *va_builder);
- }
-}
-
-void Font::create_glyph_vertices(const Glyph &glyph, VertexArrayBuilder &va_builder)
-{
- va_builder.texcoord(glyph.x1, glyph.y1);
- va_builder.vertex(glyph.off_x, glyph.off_y);
- va_builder.texcoord(glyph.x2, glyph.y1);
- va_builder.vertex(glyph.off_x+glyph.w, glyph.off_y);
- va_builder.texcoord(glyph.x2, glyph.y2);
- va_builder.vertex(glyph.off_x+glyph.w, glyph.off_y+glyph.h);
- va_builder.texcoord(glyph.x1, glyph.y2);
- va_builder.vertex(glyph.off_x, glyph.off_y+glyph.h);
-}
-
-void Font::prepare_render() const
-{
- tex->bind();
- varray.apply();
- glPushMatrix();
-}
-
-void Font::draw_glyph(unsigned code) const
-{
- GlyphMap::const_iterator i=glyphs.find(code);
- if(i==glyphs.end())
- return;
-
- glDrawArrays(GL_QUADS, i->second.index*4, 4);
-
- glTranslatef(i->second.advance, 0, 0);
-}
-
-float Font::get_glyph_advance(unsigned code) const
-{
- GlyphMap::const_iterator i=glyphs.find(code);
- if(i==glyphs.end())
- return 0;
-
- return i->second.advance;
-}
-
-
-Font::Loader::Loader(Font &f):
- font(f),
- coll(0)
-{
- init();
-}
-
-Font::Loader::Loader(Font &f, Collection &c):
- font(f),
- coll(&c)
-{
- init();
-}
-
-DataFile::Collection &Font::Loader::get_collection()
-{
- if(!coll)
- throw InvalidState("No collection");
- return *coll;
-}
-
-Font::Loader::~Loader()
-{
- font.create_glyph_vertices();
-}
-
-void Font::Loader::init()
-{
- add("default_size", &Font::default_size);
- add("ascent", &Font::ascent);
- add("descent", &Font::descent);
- add("texture", &Font::tex);
- add("glyph", &Loader::glyph);
-}
-
-void Font::Loader::glyph(unsigned c)
-{
- Glyph gl;
- gl.code=c;
- load_sub(gl);
- font.glyphs.insert(GlyphMap::value_type(c, gl));
-}
-
-
-Font::Glyph::Loader::Loader(Glyph &g):
- glyph(g)
-{
- add("texcoords", &Loader::texcoords);
- add("size", &Glyph::w, &Glyph::h);
- add("offset", &Glyph::off_x, &Glyph::off_y);
- add("advance", &Glyph::advance);
-}
-
-void Font::Glyph::Loader::texcoords(float x1, float y1, float x2, float y2)
-{
- glyph.x1=x1;
- glyph.y1=y1;
- glyph.x2=x2;
- glyph.y2=y2;
-}
-
-} // namespace GL
-} // namespace Msp