-
+%
+% feta-beugel.mf -- [Staff] braces
+%
+% source file of the Feta (not an acronym for Font-En-Tja)
+% pretty-but-neat music font
+%
+% (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+% Jan Nieuwenhuizen <janneke@gnu.org>
input feta-autometric;
input feta-macros;
-staffsize# := 20 pt#; %% arbitrary.
-
+staffsize# := 20 pt#; %% arbitrary.
input feta-params;
-font_coding_scheme "feta braces";
-% we set the designsize arbitrarily at 10
-% if the * 10 is left out, pktrace gets confused over the proper magnification,
-% and makes it too large.
-fet_beginfont("feta-braces", font_count * 10);
+def abc_encode_int (expr i) =
+ if i > 0:
+ abc_encode_int (i div 26) & char (65 + i mod 26)
+ else:
+ "A"
+ fi
+enddef ;
+
+% we must let the design increase for each
+% font to make sure that mftrace doesn't jack up the resolution too highly
+% for the longer braces.
+fet_beginfont ("feta-braces-" & char (97 + font_count), (font_count + 1) * 15,
+ "fetaBraces");
mode_setup;
save code;
-code := -1;
+code := 64;
-def abc_encode_int (expr i) =
- if i > 0:
- abc_encode_int(i div 26)&char(65 + i mod 26)
- else:
- "A"
- fi
-enddef ;
-
def draw_brace (expr height_sharp, width_sharp, slt_sharp) =
save pendir, height, width, thin, thick, slt;
slt# := slt_sharp;
%% +1 is needed because fet_beginchar increments after dumping the strings.
-fet_beginchar("brace number "&(decimal (code + 1)), "brace"&abc_encode_int(code+1),
- "brace"&abc_encode_int (code+1))
+fet_beginchar ("brace number " & (decimal (code + 1)),
+ "brace" & abc_encode_int (code - 64),
+ "brace" & abc_encode_int (code - 64))
set_char_box (0, width#, height#/2, height#/2);
save stafflinethickness;
save increment;
-stafflinethickness := 0.5pt#;
+linethickness := 0.5pt#;
increment := 0.5pt#;
y := 10pt#;
% message "l: "&decimal l;
% note: define_pixels (x) multiplies x by hppp,
% must never get bigger than infinity
- y := min (y + increment, infinity/hppp - 1);
+ y := y + increment;
+
+ if y > infinity/hppp:
+ message "Resolution and/or magnification is too high";
+ error please report: <bug-lilypond@gnu.org>;
+ fi
% x should be about one staff space, taking brace to have
% default height of 3 staffs, this yields height / 3 / 4 = 12
x := y / 15;
increment := x / 10;
- stafflinethickness := min (0.5pt#, y/150);
+ linethickness := min (0.5pt#, y/150);
if i = font_count:
- draw_brace (y, x, stafflinethickness);
+ draw_brace (y, x, linethickness);
fi
endfor;
endfor