-#include <GL/gl.h>
+#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),
- own_tex(false)
+ native_size(1),
+ ascent(1),
+ descent(0)
+{ }
+
+// 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(wchar_t code, float x1, float y1, float x2, float y2, float w, float h, float desc, 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.descent=desc;
- glyph.advance=adv;
+ if(!texture)
+ throw logic_error("No texture");
+ return *texture;
}
-float Font::get_string_width(const string &str) const
+void Font::add_glyph(const Glyph &g)
{
- float x=0;
+ insert_unique(glyphs, g.code, g);
+}
- for(string::const_iterator i=str.begin(); i!=str.end(); ++i)
- {
- GlyphMap::const_iterator j=glyphs.find((unsigned char)*i);
- if(j==glyphs.end())
- continue;
+void Font::set_kerning(unsigned l, unsigned r, float d)
+{
+ kerning[KerningKey(l, r)] = d;
+}
- const Glyph &glyph=j->second;
+float Font::get_string_width(const string &str, StringCodec::Decoder &dec) const
+{
+ float x = 0;
- x+=glyph.advance;
+ unsigned prev = 0;
+ for(string::const_iterator i=str.begin(); i!=str.end();)
+ {
+ unsigned c = dec.decode_char(str, i);
+ if(prev)
+ x += get_glyph_advance(prev, c);
+ prev = c;
}
+ x += get_glyph_advance(prev);
return x;
}
-void Font::draw_string(const string &str) const
+void Font::draw_string(const string &str, StringCodec::Decoder &dec, const Color &color) const
{
- float x=0;
- float data[16];
+ Bind bind_tex(get_texture(), true);
+ Immediate imm((TEXCOORD2, COLOR4_UBYTE, VERTEX2));
+ imm.color(color);
+ build_string(str, dec, imm);
+}
- prepare(data);
+void Font::build_string(const string &str, StringCodec::Decoder &dec, PrimitiveBuilder &bld) const
+{
+ MatrixStack::Push push_mtx(bld.matrix());
- for(string::const_iterator i=str.begin(); i!=str.end(); ++i)
- draw_glyph((unsigned char)*i, data, x);
+ bld.begin(QUADS);
+ 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;
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-}
+ if(prev)
+ bld.matrix() *= Matrix::translation(get_glyph_advance(prev, c), 0, 0);
-Font::~Font()
-{
- if(own_tex)
- delete tex;
+ create_glyph_vertices(j->second, bld);
+ prev = c;
+ }
+ bld.end();
}
-void Font::prepare(float *data) const
+void Font::create_glyph_vertices(const Glyph &glyph, VertexBuilder &bld) const
{
- tex->bind();
-
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
- glEnableClientState(GL_VERTEX_ARRAY);
- glTexCoordPointer(2, GL_FLOAT, 4*sizeof(float), data);
- glVertexPointer(2, GL_FLOAT, 4*sizeof(float), data+2);
+ bld.texcoord(glyph.x1, glyph.y1);
+ bld.vertex(glyph.off_x, glyph.off_y);
+ bld.texcoord(glyph.x2, glyph.y1);
+ bld.vertex(glyph.off_x+glyph.w, glyph.off_y);
+ bld.texcoord(glyph.x2, glyph.y2);
+ bld.vertex(glyph.off_x+glyph.w, glyph.off_y+glyph.h);
+ bld.texcoord(glyph.x1, glyph.y2);
+ bld.vertex(glyph.off_x, glyph.off_y+glyph.h);
}
-void Font::draw_glyph(wchar_t code, float *data, float &x) 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;
+ return 0;
- const Glyph &glyph=i->second;
+ float advance = i->second.advance;
- data[0]=data[12]=glyph.x1;
- data[1]=data[5]=glyph.y1;
- data[4]=data[8]=glyph.x2;
- data[9]=data[13]=glyph.y2;
+ if(next)
+ {
+ KerningMap::const_iterator j = kerning.find(KerningKey(code, next));
+ if(j!=kerning.end())
+ advance += j->second;
+ }
- data[2]=data[14]=x;
- data[3]=data[7]=glyph.descent;
- data[6]=data[10]=x+glyph.w;
- data[11]=data[15]=glyph.h+glyph.descent;
+ return advance;
+}
- glDrawArrays(GL_QUADS, 0, 4);
- x+=glyph.advance;
+Font::Loader::Loader(Font &f):
+ DataFile::CollectionObjectLoader<Font>(f, 0)
+{
+ init();
}
-Font::Loader::Loader(Font &f):
- font(f)
+Font::Loader::Loader(Font &f, Collection &c):
+ DataFile::CollectionObjectLoader<Font>(f, &c)
{
- add("texture", &Loader::texture);
- add("glyph", &Loader::glyph);
+ init();
}
-void Font::Loader::texture(const string &t)
+void Font::Loader::init()
{
- Texture2D *tex=new Texture2D;
- tex->parameter(GL_GENERATE_MIPMAP, 1);
- font.tex=tex;
- tex->image(t);
- font.own_tex=true;
+ add("native_size", &Font::native_size);
+ add("ascent", &Font::ascent);
+ add("descent", &Font::descent);
+ add("texture", &Loader::texture);
+ add("texture", &Loader::texture_ref);
+ add("glyph", &Loader::glyph);
+ add("kerning", &Loader::kerning);
}
void Font::Loader::glyph(unsigned c)
{
Glyph gl;
- gl.code=c;
+ gl.code = c;
load_sub(gl);
- font.glyphs.insert(GlyphMap::value_type(c, gl));
+ obj.glyphs.insert(GlyphMap::value_type(c, gl));
}
-Font::Glyph::Loader::Loader(Glyph &g):
- glyph(g)
+void Font::Loader::kerning(unsigned l, unsigned r, float d)
{
- add("texcoords", &Loader::texcoords);
- add("size", &Loader::size);
- add("descent", &Glyph::descent);
- add("advance", &Glyph::advance);
+ obj.kerning[KerningKey(l, r)] = d;
}
-void Font::Glyph::Loader::texcoords(float x1, float y1, float x2, float y2)
+void Font::Loader::texture()
{
- glyph.x1=x1;
- glyph.y1=y1;
- glyph.x2=x2;
- glyph.y2=y2;
+ 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):
+ DataFile::ObjectLoader<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::size(float w, float h)
+void Font::Glyph::Loader::texcoords(float x1_, float y1_, float x2_, float y2_)
{
- glyph.w=w;
- glyph.h=h;
+ obj.x1 = x1_;
+ obj.y1 = y1_;
+ obj.x2 = x2_;
+ obj.y2 = y2_;
}
} // namespace GL