-#include <GL/gl.h>
+/* $Id$
+
+This file is part of libmspgl
+Copyright © 2007 Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+
+#include "gl.h"
#include "font.h"
+#include "immediate.h"
+#include "primitivetype.h"
#include "texture2d.h"
using namespace std;
Font::Font():
tex(0),
- own_tex(false)
+ own_tex(false),
+ default_size(1),
+ ascent(1),
+ descent(0)
{ }
+Font::~Font()
+{
+ if(own_tex)
+ delete tex;
+}
+
void Font::set_texture(const Texture2D &t)
{
+ if(own_tex)
+ delete tex;
+
tex=&t;
+ own_tex=false;
}
-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
+{
+ if(!tex)
+ throw InvalidState("No texture");
+ return *tex;
+}
+
+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.y2=y2;
glyph.w=w;
glyph.h=h;
- glyph.descent=desc;
+ glyph.off_x=ox;
+ glyph.off_y=oy;
glyph.advance=adv;
+ glyphs.insert(GlyphMap::value_type(code, glyph));
}
-float Font::get_string_width(const string &str) const
+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(); ++i)
- {
- GlyphMap::const_iterator j=glyphs.find((unsigned char)*i);
- if(j==glyphs.end())
- continue;
-
- const Glyph &glyph=j->second;
-
- x+=glyph.advance;
- }
+ 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) const
+void Font::draw_string(const string &str, Codecs::Decoder &dec) const
{
- float x=0;
- float data[16];
+ Immediate imm((TEXCOORD2, VERTEX2));
+ draw_string(str, dec, imm);
+}
- prepare(data);
+void Font::draw_string(const string &str, Codecs::Decoder &dec, PrimitiveBuilder &pbuilder) const
+{
+ if(!tex)
+ throw InvalidState("No texture");
- for(string::const_iterator i=str.begin(); i!=str.end(); ++i)
- draw_glyph((unsigned char)*i, data, x);
+ tex->bind();
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-}
+ float x=0;
+ unsigned count=0;
-Font::~Font()
-{
- if(own_tex)
- delete tex;
+ pbuilder.begin(QUADS);
+ for(string::const_iterator i=str.begin(); i!=str.end();)
+ {
+ GlyphMap::const_iterator j=glyphs.find(dec.decode_char(str, i));
+ if(j==glyphs.end())
+ continue;
+
+ create_glyph_vertices(j->second, pbuilder, x);
+ x+=j->second.advance;
+ count+=4;
+ }
+ pbuilder.end();
}
-void Font::prepare(float *data) const
+void Font::create_glyph_vertices(const Glyph &glyph, VertexBuilder &vbuilder, float x) 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);
+ vbuilder.texcoord(glyph.x1, glyph.y1);
+ vbuilder.vertex(x+glyph.off_x, glyph.off_y);
+ vbuilder.texcoord(glyph.x2, glyph.y1);
+ vbuilder.vertex(x+glyph.off_x+glyph.w, glyph.off_y);
+ vbuilder.texcoord(glyph.x2, glyph.y2);
+ vbuilder.vertex(x+glyph.off_x+glyph.w, glyph.off_y+glyph.h);
+ vbuilder.texcoord(glyph.x1, glyph.y2);
+ vbuilder.vertex(x+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) const
{
GlyphMap::const_iterator i=glyphs.find(code);
if(i==glyphs.end())
- return;
-
- const Glyph &glyph=i->second;
+ return 0;
- data[0]=data[12]=glyph.x1;
- data[1]=data[5]=glyph.y1;
- data[4]=data[8]=glyph.x2;
- data[9]=data[13]=glyph.y2;
+ return i->second.advance;
+}
- 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;
- glDrawArrays(GL_QUADS, 0, 4);
+Font::Loader::Loader(Font &f):
+ font(f),
+ coll(0)
+{
+ init();
+}
- x+=glyph.advance;
+Font::Loader::Loader(Font &f, Collection &c):
+ font(f),
+ coll(&c)
+{
+ init();
}
-Font::Loader::Loader(Font &f):
- font(f)
+DataFile::Collection &Font::Loader::get_collection()
{
- add("texture", &Loader::texture);
- add("glyph", &Loader::glyph);
+ if(!coll)
+ throw InvalidState("No collection");
+ return *coll;
}
-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("default_size", &Font::default_size);
+ add("ascent", &Font::ascent);
+ add("descent", &Font::descent);
+ add("texture", &Font::tex);
+ add("texture_inline", &Loader::texture_inline);
+ add("glyph", &Loader::glyph);
}
void Font::Loader::glyph(unsigned c)
font.glyphs.insert(GlyphMap::value_type(c, gl));
}
+void Font::Loader::texture_inline()
+{
+ RefPtr<Texture2D> tex=new Texture2D;
+ load_sub(*tex);
+ font.tex=tex.release();
+ font.own_tex=true;
+}
+
+
Font::Glyph::Loader::Loader(Glyph &g):
glyph(g)
{
add("texcoords", &Loader::texcoords);
- add("size", &Loader::size);
- add("descent", &Glyph::descent);
+ add("size", &Glyph::w, &Glyph::h);
+ add("offset", &Glyph::off_x, &Glyph::off_y);
add("advance", &Glyph::advance);
}
glyph.y2=y2;
}
-void Font::Glyph::Loader::size(float w, float h)
-{
- glyph.w=w;
- glyph.h=h;
-}
-
} // namespace GL
} // namespace Msp
projects / libs / gl.git / blobdiff