-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
+#include <msp/core/maputils.h>
+#include <msp/datafile/collection.h>
+#include "bindable.h"
#include "gl.h"
#include "font.h"
+#include "immediate.h"
+#include "primitivetype.h"
#include "texture2d.h"
using namespace std;
namespace GL {
Font::Font():
- tex(0),
- default_size(1),
+ native_size(1),
ascent(1),
descent(0),
- varray((TEXCOORD2, VERTEX2))
+ cap_height(1),
+ x_height(0.5)
+{ }
+
+// Avoid synthesizing ~RefPtr in files including font.h
+Font::~Font()
{ }
void Font::set_texture(const Texture2D &t)
{
- tex=&t;
+ texture = &t;
+ texture.keep();
}
-void Font::add_glyph(unsigned code, float x1, float y1, float x2, float y2, float w, float h, float ox, float oy, float adv)
+const Texture2D &Font::get_texture() const
{
- 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);
+ if(!texture)
+ throw logic_error("No texture");
+ return *texture;
}
-float Font::get_string_width(const string &str, Codecs::Decoder &dec) const
+void Font::add_glyph(const Glyph &g)
{
- float x=0;
-
- for(string::const_iterator i=str.begin(); i!=str.end();)
- x+=get_glyph_advance(dec.decode_char(str, i));
-
- return x;
+ insert_unique(glyphs, g.code, g);
}
-void Font::draw_string(const string &str, Codecs::Decoder &dec) const
+void Font::set_kerning(unsigned l, unsigned r, float d)
{
- prepare_render();
-
- for(string::const_iterator i=str.begin(); i!=str.end();)
- draw_glyph(dec.decode_char(str, i));
-
- glPopMatrix();
+ kerning[KerningKey(l, r)] = d;
}
-void Font::create_glyph_vertices()
+float Font::get_string_width(const string &str, StringCodec::Decoder &dec) const
{
- varray.clear();
- RefPtr<VertexArrayBuilder> va_builder=varray.modify();
+ float x = 0;
- unsigned n=0;
- for(GlyphMap::iterator i=glyphs.begin(); i!=glyphs.end(); ++i, ++n)
+ unsigned prev = 0;
+ for(string::const_iterator i=str.begin(); i!=str.end();)
{
- i->second.index=n;
- create_glyph_vertices(i->second, *va_builder);
+ unsigned c = dec.decode_char(str, i);
+ if(prev)
+ x += get_glyph_advance(prev, c);
+ prev = c;
}
-}
+ x += get_glyph_advance(prev);
-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);
+ return x;
}
-void Font::prepare_render() const
+void Font::draw_string(const string &str, StringCodec::Decoder &dec, const Color &color) const
{
- tex->bind();
- varray.apply();
- glPushMatrix();
+ BindRestore bind_tex(get_texture());
+ Immediate imm((TEXCOORD2, COLOR4_UBYTE, VERTEX2));
+ imm.color(color);
+ build_string(str, dec, imm);
}
-void Font::draw_glyph(unsigned code) const
+void Font::build_string(const string &str, StringCodec::Decoder &dec, PrimitiveBuilder &bld) const
{
- GlyphMap::const_iterator i=glyphs.find(code);
- if(i==glyphs.end())
- return;
+ MatrixStack::Push push_mtx(bld.matrix());
+
+ unsigned prev = 0;
+ for(string::const_iterator i=str.begin(); i!=str.end();)
+ {
+ unsigned c = dec.decode_char(str, i);
+ GlyphMap::const_iterator j = glyphs.find(c);
+ if(j==glyphs.end())
+ continue;
- const Glyph &glyph=i->second;
- (void)glyph;
+ if(prev)
+ bld.matrix() *= Matrix::translation(get_glyph_advance(prev, c), 0, 0);
- glDrawArrays(GL_QUADS, i->second.index*4, 4);
+ create_glyph_quad(j->second, bld);
+ prev = c;
+ }
+}
- glTranslatef(i->second.advance, 0, 0);
+void Font::create_glyph_quad(const Glyph &glyph, PrimitiveBuilder &bld) const
+{
+ bld.begin(TRIANGLE_STRIP);
+ bld.texcoord(glyph.x1, glyph.y2);
+ bld.vertex(glyph.off_x, glyph.off_y+glyph.h);
+ bld.texcoord(glyph.x1, glyph.y1);
+ bld.vertex(glyph.off_x, glyph.off_y);
+ bld.texcoord(glyph.x2, glyph.y2);
+ bld.vertex(glyph.off_x+glyph.w, glyph.off_y+glyph.h);
+ bld.texcoord(glyph.x2, glyph.y1);
+ bld.vertex(glyph.off_x+glyph.w, glyph.off_y);
+ bld.end();
}
-float Font::get_glyph_advance(unsigned code) const
+float Font::get_glyph_advance(unsigned code, unsigned next) const
{
- GlyphMap::const_iterator i=glyphs.find(code);
+ GlyphMap::const_iterator i = glyphs.find(code);
if(i==glyphs.end())
return 0;
- return i->second.advance;
+ float advance = i->second.advance;
+
+ if(next)
+ {
+ KerningMap::const_iterator j = kerning.find(KerningKey(code, next));
+ if(j!=kerning.end())
+ advance += j->second;
+ }
+
+ return advance;
}
Font::Loader::Loader(Font &f):
- font(f),
- coll(0)
+ DataFile::CollectionObjectLoader<Font>(f, 0)
{
init();
}
Font::Loader::Loader(Font &f, Collection &c):
- font(f),
- coll(&c)
+ DataFile::CollectionObjectLoader<Font>(f, &c)
{
init();
}
-DataFile::Collection &Font::Loader::get_collection()
+void Font::Loader::init()
{
- if(!coll)
- throw InvalidState("No collection");
- return *coll;
+ add("native_size", &Font::native_size);
+ add("ascent", &Font::ascent);
+ add("cap_height", &Font::cap_height);
+ add("descent", &Font::descent);
+ add("texture", &Loader::texture);
+ add("texture", &Loader::texture_ref);
+ add("glyph", &Loader::glyph);
+ add("kerning", &Loader::kerning);
+ add("x_height", &Font::x_height);
}
-Font::Loader::~Loader()
+void Font::Loader::glyph(unsigned c)
{
- font.create_glyph_vertices();
+ Glyph gl;
+ gl.code = c;
+ load_sub(gl);
+ obj.glyphs.insert(GlyphMap::value_type(c, gl));
}
-void Font::Loader::init()
+void Font::Loader::kerning(unsigned l, unsigned r, float d)
{
- add("default_size", &Font::default_size);
- add("ascent", &Font::ascent);
- add("descent", &Font::descent);
- add("texture", &Font::tex);
- add("glyph", &Loader::glyph);
+ obj.kerning[KerningKey(l, r)] = d;
}
-void Font::Loader::glyph(unsigned c)
+void Font::Loader::texture()
{
- Glyph gl;
- gl.code=c;
- load_sub(gl);
- font.glyphs.insert(GlyphMap::value_type(c, gl));
+ RefPtr<Texture2D> tex = new Texture2D;
+ load_sub(*tex);
+ obj.texture = tex;
+}
+
+void Font::Loader::texture_ref(const string &name)
+{
+ obj.texture = &get_collection().get<Texture2D>(name);
+ obj.texture.keep();
}
Font::Glyph::Loader::Loader(Glyph &g):
- glyph(g)
+ DataFile::ObjectLoader<Glyph>(g)
{
add("texcoords", &Loader::texcoords);
add("size", &Glyph::w, &Glyph::h);
add("advance", &Glyph::advance);
}
-void Font::Glyph::Loader::texcoords(float x1, float y1, float x2, float y2)
+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;
+ obj.x1 = x1_;
+ obj.y1 = y1_;
+ obj.x2 = x2_;
+ obj.y2 = y2_;
}
} // namespace GL
projects / libs / gl.git / blobdiff