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/* $Id: fonts.pike,v 1.19 1998/05/07 22:03:09 grubba Exp $ */
#include <module.h>
//import Image;
constant Font = Image.font;
string fix_name(string in)
{
return replace(lower_case(in), ({"-"," "}), ({ "_", "_" }));
}
array available_font_versions(string name, int size)
{
string base_dir, dir;
array available;
foreach(roxen->query("font_dirs"), dir)
{
base_dir = dir+size+"/"+fix_name(name);
if((available = get_dir(base_dir)))
break;
base_dir=dir+"/"+roxen->query("default_font_size")+"/"+fix_name(name);
if((available = get_dir(base_dir)))
break;
base_dir=dir+"/"+roxen->query("default_font_size")+"/"+roxen->query("default_font");
if((available = get_dir(base_dir)))
break;
}
if(!available) return 0;
return available;
}
string describe_font_type(string n)
{
string res;
if(n[1]=='i') res = "italic";
else res="";
switch(n[0])
{
case 'n': if(!strlen(res)) res="normal"; break;
case 'B': res+=" black"; break;
case 'b': res+=" bold"; break;
case 'l': res+=" light"; break;
}
return res;
}
array get_font_italic_bold(string n)
{
int italic,bold;
if(n[1]=='i') italic = 1;
switch(n[0])
{
case 'B': bold=2; break;
case 'b': bold=1; break;
case 'l': bold=-1; break;
}
return ({ italic, bold });
}
string make_font_name(string name, int size, int bold, int italic)
{
string base_dir, dir;
mixed available;
if(file_stat(name)) return name;
foreach(roxen->query("font_dirs"), dir)
{
base_dir = dir+size+"/"+fix_name(name);
if((available = get_dir(base_dir)))
break;
base_dir=dir+"/"+roxen->query("default_font_size")+"/"+fix_name(name);
if((available = get_dir(base_dir)))
break;
base_dir=dir+"/"+roxen->query("default_font_size")+"/"+roxen->query("default_font");
if((available = get_dir(base_dir)))
break;
}
if(!available) return 0;
string bc=(bold>=0?(bold==2?"B":(bold==1?"b":"n")):"l"), ic=(italic?"i":"n");
available = mkmultiset(available);
if(available[bc+ic]) return base_dir+"/"+bc+ic;
if(bc=="l") bc="n";
if(available[bc+ic]) return base_dir+"/"+bc+ic;
if(bc=="B") bc="b";
if(available[bc+ic]) return base_dir+"/"+bc+ic;
if(bc=="b") bc="n";
if(available[bc+ic]) return base_dir+"/"+bc+ic;
if(ic=="i") ic="n";
if(available[bc+ic]) return base_dir+"/"+bc+ic;
foreach(({ "n","l","b", "B", }), bc)
foreach(({ "n", "i" }), ic)
if(available[bc+ic])
return base_dir+"/"+bc+ic;
return 0;
}
object get_font(string f, int size, int bold, int italic,
string justification, float xspace, float yspace)
{
object fnt;
string key, name;
mixed err;
err = catch {
name=make_font_name(f,size,bold,italic);
key=name+"/"+justification+"/"+xspace+"/"+yspace;
if(fnt=cache_lookup("fonts", key))
return fnt;
else
fnt = Font();
if(!fnt->load( name ))
{
report_debug("Failed to load the font "+name+", using the default font.\n");
if(!fnt->load(make_font_name(roxen->QUERY(default_font),
roxen->QUERY(default_font_size),
bold, italic)))
{
report_error("Failed to load the default font.\n");
return 0;
}
}
if(justification=="right") fnt->right();
if(justification=="center") fnt->center();
fnt->set_x_spacing((100.0+(float)xspace)/100.0);
fnt->set_y_spacing((100.0+(float)yspace)/100.0);
cache_set("fonts", key, fnt);
return fnt;
};
report_error(sprintf("get_font(): Error opening font %O:\n"
"%s\n", f, describe_backtrace(err)));
// Error if the font-file is not really a font-file...
return 0;
}
object resolve_font(string f, string|void justification)
{
int bold, italic;
float xspace=0.0;
string a,b;
if(sscanf(f, "%sbold%s", a,b)==2)
{
bold=1;
f = a+b;
}
if(sscanf(f, "%sblack%s", a,b)==2)
{
bold=2;
f = a+b;
}
if(sscanf(f, "%slight%s", a,b)==2)
{
bold=-1;
f = a+b;
}
if(sscanf(f, "%sitalic%s", a,b)==2)
{
italic=1;
f = a+b;
}
if(sscanf(f, "%sslant%s", a,b)==2)
{
italic=-1;
f = a+b;
}
if(sscanf(f, "%scompressed%s", a,b)==2)
{
xspace = -20.0;
f = a+b;
}
if(sscanf(f, "%sspaced%s", a,b)==2)
{
xspace = 20.0;
f = a+b;
}
return get_font((f/" ")[0], 32, bold, italic, justification||"left", xspace, 0.0);
}
void create()
{
add_constant("get_font", get_font);
add_constant("available_font_versions", available_font_versions);
add_constant("describe_font_type", describe_font_type);
add_constant("get_font_italic_bold", get_font_italic_bold);
add_constant("resolve_font", resolve_font);
}
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