+%
+% feta-toevallig.mf -- implement Accidentals
+%
+% source file of the Feta (Font-En-Tja) music font
+%
+% (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+%
+
+
%
% Accidentals from various sources, notably
%
-% Baerenreiter edition of Schuberts `Auf dem Strom' (sharp, natural, flat)
-% F Hofmeister edition of Muellers `Etueden fuer Horn' (double sharp)
+% Baerenreiter edition of Schuberts `Auf dem Strom' (sharp, natural)
+% F Hofmeister edition of Muellers `Etueden fuer Horn' (double sharp, flat)
%
fet_begingroup("accidentals");
-fet_beginchar("Sharp" , "1", "sharp");
- set_char_box(0, 1.1 interline#, 1.5 interline#,
- 1.5 interline#);
+%
+% The beams of most sharps have horizontal endings (as if drawn with
+% a square pen). [Wanske] does not mention this, so we'll just ignore
+% this fact
+%
+def draw_meta_sharp (expr width) =
save interbeam, interstem, beamheight, beamwidth,
- stemwidth;
-
- interbeam := 1.1 interline;
- interstem := 7/16 ;
- beamheight := 4 stafflinethickness;
- beamwidth := w;
- stemwidth := 1.3 stafflinethickness;
- roundness := blot_diameter;
+ stemwidth, beamslope;
+ save spanwidth, spanheight;
+
+ save center;
pair center;
+
+ interbeam := 1.05 staff_space;
+ beamheight := 0.3 staff_space + stafflinethickness;
+ beamwidth := width;
+ stemwidth := 1.0 stafflinethickness + .05 staff_space;
+ roundness := 2 blot_diameter;
+
center := (.5 w, 0);
roundness + 2 spanwidth = beamwidth;
roundness + 2 spanheight = beamheight;
- 2 horizontal_protrusion + interstem * beamwidth + stemwidth
- = beamwidth;
-
-% wanske: whole beamheight; or ca 18 degrees
-% z2 - z1 = (beamwidth - roundness, beamheight/2);
z2 - z1 = (beamwidth - roundness, beamheight);
z1 + z2 = 2*center;
beamslope = (y2-y1)/(x2-x1);
pair hspan, vspan;
hspan = (spanwidth, beamslope * spanwidth);
vspan = (0, spanheight);
-
path beam;
beam := (hspan + vspan -- -hspan
+ vspan -- -hspan -vspan -- hspan - vspan -- cycle )
shifted center;
- draw_rounded_path((beam shifted (0,-interbeam/2)), roundness);
- draw_rounded_path((beam shifted (0,interbeam/2)), roundness);
+ pickup pencircle scaled roundness;
+ filldraw (beam shifted (0,-interbeam/2));
pickup pencircle scaled stemwidth;
x3 = x4 = xpart center;
- bot y3 = -1.5 interline + ypart center;
- top y4 = 1.5 interline + ypart center;
-
- path stem;
- stem := z3 .. z4;
- numeric xs;
- xs := interstem* beamwidth / 2;
- draw stem shifted (- xs, - xs* beamslope);
- draw stem shifted (xs , xs *beamslope);
+
+
+ enddef;
+
+fet_beginchar("Sharp" , "2", "sharp");
+ set_char_box(0, 1.1 staff_space#, 1.5 staff_space#,
+ 1.5 staff_space#);
+ draw_meta_sharp (w);
+
+ save stemx;
+ stemx := 7 / 32 * w;
+
+ (bot y3) + - stemx * beamslope = -1.5 staff_space + ypart center;
+ top y4 + stemx * beamslope = 1.5 staff_space + ypart center;
+
labels(1,2,3,4);
+
+ draw_gridline (z3-(stemx,stemx* beamslope),z4-(stemx, stemx*beamslope), stemwidth);
+ addto currentpicture also currentpicture rotated 180 shifted (w,0);
+
fet_endchar;
-fet_beginchar( "Natural", "0", "natural")
- set_char_box(0, 8/12 interline#, 1.5 interline#, 1.5 interline#);
+fet_beginchar("1/2 Sharp" , "1", "semisharp");
+ set_char_box(0, 0.7 staff_space#, 1.5 staff_space#,
+ 1.5 staff_space#);
+
+ draw_meta_sharp (w);
+ stemx := 7 / 32 * w;
+
+ (bot y3) + - stemx * beamslope = -1.5 staff_space + ypart center;
+ top y4 + stemx * beamslope = 1.5 staff_space + ypart center;
+
+ labels(1,2,3,4);
+
+ draw_gridline (z3, z4, stemwidth);
+ addto currentpicture also currentpicture rotated 180 shifted (w,0);
+ fet_endchar;
+
+
+fet_beginchar("3/4 Sharp" , "3", "threequartersharp");
+ set_char_box(0, 1.6 staff_space#, 1.5 staff_space#,
+ 1.5 staff_space#);
+
+ draw_meta_sharp (w);
+ stemx := 9 / 32 * w;
+
+ (bot y3) + - stemx * beamslope = -1.5 staff_space + ypart center;
+ top y4 + stemx * beamslope = 1.5 staff_space + ypart center;
+
+ labels(1,2,3,4);
+
+ draw_gridline (z3-(stemx,stemx* beamslope),z4-(stemx, stemx*beamslope), stemwidth);
+ draw_gridline (z3, z4, stemwidth);
+ addto currentpicture also currentpicture rotated 180 shifted (w,0);
+
+ fet_endchar;
+
+%
+% The stems of the natural are brushed (at least, in Barenreiter SCS )
+%
+%
+
+fet_beginchar( "Natural", "0", "natural")
+ save height, xcenter;
save interbeam, interstem, beamheight, beamwidth,
- stemwidth;
+ stemwidth;
+ save top_stem_thick;
+
+ beamheight# = 0.35 staff_space# + .5 stafflinethickness#;
+ height# = 1.5 staff_space#;
+ set_char_box(0, 2/3 staff_space#, height#, height#);
+
+ define_pixels(height);
+ define_blacker_pixels(beamheight);
+
+ top_stem_thick = round (1 stafflinethickness + .09staff_space ) + 0.4;
+ stemwidth = 0.08 staff_space + .5 stafflinethickness;
+
- beamheight = 4.5 stafflinethickness;
interstem + stemwidth = w;
- stemwidth = 1.3 stafflinethickness;
z2 -z1 = (interstem, slope * interstem);
xpart .5 [z2,z1] = xcenter ;
pickup penrazor scaled beamheight rotated 90;
- top y2 = interline - 3/2 stafflinethickness ;
- slope = stafflinethickness / interstem;
+ top y2 = staff_space - 3/2 stafflinethickness ;
+ slope = stafflinethickness / interstem;
draw z1 .. z2;
draw (xpart z1, -y2) .. (xpart z2, -y1);
beamtop = top y2;
-
+
pickup pencircle scaled stemwidth;
- xpart z3 = xpart z1;
- xpart z4 = xpart z2;
- top y3 = 1.5 interline;
+ x3 := round (xpart z1);
+ x4 := round (xpart z2);
+
+ penpos3(top_stem_thick, 0);
+ penpos5(top_stem_thick, 0);
+ penpos4(stemwidth, 0);
+ penpos6(stemwidth, 0);
+
+ y3 = height;
top y4 = beamtop;
- draw (xpart z1, -y4) .. z3;
- draw (xpart z2, -y3) .. z4;
+ x5 = x4;
+ x6 = x3;
+ bot y6 = -beamtop;
+ y5 = - height;
- labels(1,2,3,4);
+ fill simple_serif (z3l, z3r, -30) -- simple_serif(z6r, z6l, -90) -- cycle;
+ fill simple_serif (z5l, z5r, 30) -- simple_serif(z4r, z4l, 90) -- cycle;
+
+
+
+ penlabels(3,4,5,6);
+
+ labels(1,2);
fet_endchar;
+
%
% Dedicated to my mom. (3/10/97)
%
% -- HW
%
+% TODO: remove crook_fatness
+% TODO: document, simplify!
%
-% FIXME more metaness
-% FIXME distribution of the crooks' thickness
+def draw_meta_flat(expr xcenter, w, crook_fatness) =
+ clearxy;
+ save crook_thinness;
+ save bottom_overshoot;
+ save top_stem_thick, bottom_stem_thick, hair, smaller_hole;
+ save top_crook_thinness;
+ save zwiep;
+ save center;
+ pair center;
+ save clearing;
+ center = (xcenter, 0);
+
+% the shouldn't reach to the top staff line.
+%% TODO: should take from height.
+ clearing = 1.2 stafflinethickness;
+
%
-% FIXME probably doesn't look quite right.
+% TODO: parameterize this
%
+ if w >= 0.75 staff_space:
+ smaller_hole = 0.35 stafflinethickness;
+ else:
+ smaller_hole = 0.0 stafflinethickness;
+ fi
+ crook_thinness = .7 stafflinethickness + .06 staff_space;
+ top_crook_thinness = 1 stafflinethickness + .065 staff_space ;
-def flat_meta_symbol(expr w, d, h,
- stemwidth, crook_fatness, crook_thinness,
- bottom_stem_thick, top_stem_thick)=
+ % this is a somewhat heuristic. We should probably make it
+ % straight for low resolution (300 dpi and less).
+ top_stem_thick = round (0.1 staff_space + 1.2 stafflinethickness) + 0.74;
- z1 = (0, h);
- z2 = (0, -d);
- brush(z1, top_stem_thick , z2, bottom_stem_thick);
-
- z3 = (0, 7/16 interline);
- z4 = z3 + whatever * (dir 30);
- y4 = 1/2 interline ;
- y5 = 4/16 interline;
- x5 + crook_fatness/2 = w;
- z6 = z2 + (0,-1) * (bottom_stem_thick - crook_thinness);
-
- penpos3(crook_thinness, 90);
- penpos4(crook_thinness, 90);
- penpos5(crook_fatness, 0);
- penpos6(crook_thinness, -90);
- labels(1,2,3,4,5,6);
- penstroke z3e{dir 32} .. z4e{dir 30} .. z5e{down} .. {dir 220}z6e;
- enddef;
-
-def flat_symbol (expr w, d, h)=
- save stemwidth, bottom_stem_thick, top_stem_thick,
- crook_thinness, crook_fatness;
- stemwidth = stafflinethickness;
- crook_fatness = 1/4 interline;
- crook_thinness = stemwidth;
- bottom_stem_thick = 5/4 stemwidth;
- top_stem_thick = 2 stemwidth;
- flat_meta_symbol(w,d,h, stemwidth, crook_fatness, crook_thinness,
- bottom_stem_thick, top_stem_thick);
- enddef;
+ bottom_overshoot = stafflinethickness;
+ bottom_stem_thick = 0.06 staff_space + 0.6 stafflinethickness;
+
+ z1 = (0, 2 staff_space) + center - (0, stafflinethickness/2
+ + clearing);
+ z2 = (0, - 1/2 staff_space - stafflinethickness/2 )+ center;
+
+ penpos1(top_stem_thick, 0);
+ penpos2(bottom_stem_thick, 0);
+
+ fill simple_serif(z1r, z1l, 30) -- z2l -- z2r -- cycle;
+
+
+ y3l = (staff_space - stafflinethickness) / 2 + ypart center;
+ z3l = whatever [z2r,z1r];
+
+ z3r = .3 [z2r, z1r] + (smaller_hole, 0);
+
+ z10 = whatever [z2r, z1r] + (smaller_hole , 0);
+ z11 = center + (bottom_overshoot/3,
+ -staff_space/2 - stafflinethickness/2) - (0,bottom_overshoot);
+
+ penpos4(whatever, 53);
+
+ y4l - y4r = top_crook_thinness ;
+
+ y5r = .15 staff_space + ypart center;
+ x5l = w + xpart center;
+ y4 = ypart center + staff_space/2;
+ x4r = .45 [x5r, x3r];
+ penpos5(crook_fatness, -175);
+
+ save bot_crook_dir ;
+ pair bot_crook_dir ;
+ bot_crook_dir = unitvector ((x5l,0) - z11);
+ z8 = z11 + whatever * bot_crook_dir;
+ y8 = - staff_space /2 +0.0* stafflinethickness;
+
+ z7 = z8 + whatever * bot_crook_dir + crook_thinness * (bot_crook_dir rotated 90);
+
+ x7 = .1 [x3r, x8];
+
+ penlabels(range 0 thru 10);
+
+ y10 = -1/10 staff_space;
+% draw_staff (-2, 2, 0.5);
+% draw_staff (-2, 2, 0.0);
+
+ unfill z3r{z3r-z10} .. z4r{right} .. z5r{down}
+ .. z7{- bot_crook_dir}
+ & z7 % .. tension 1.3
+ .. z10{z3r-z10}
+
+ -- cycle;
+ fill z2l{down}
+
+ .. z11{right}
+ .. z8{bot_crook_dir}
+ .. z5l{up}
+ .. z4l{left} .. z3l -- cycle;
+
+ labels(10);
+enddef;
+
+
%
% unfortunately, 600dpi is not enough to show the brush of the stem.
%
-fet_beginchar("Flat", "-1", "flat")
- set_char_box(0, 9/12 interline#, .5 interline#, 2 interline#);
- flat_symbol (w, d, h);
+fet_beginchar("Flat", "-2", "flat")
+ set_char_box(1.2 stafflinethickness#, .8 staff_space#, 0.6 staff_space#, 1.9 staff_space#);
+ draw_meta_flat(0, w, 0.31 staff_space);
fet_endchar;
-fet_beginchar("Double flat", "-2", "flatflat")
- set_char_box(0, 18/12 interline#, .5 interline#, 2 interline#);
- flat_symbol(w/2, d, h);
- addto currentpicture also currentpicture
- shifted (w/2 - stafflinethickness/2,0);
+fet_beginchar("Semi flat", "-1", "semiflat")
+ set_char_box(1.2 stafflinethickness#, .8 staff_space#, 0.6 staff_space#, 1.9 staff_space#);
+ draw_meta_flat(0, w, 0.31 staff_space);
+ currentpicture := currentpicture xscaled -1 shifted (w - b, 0);
fet_endchar;
-
-fet_beginchar("Double sharp", "2", "sharpsharp")
- set_char_box(0, interline#, .5 interline#, .5 interline#);
+
+fet_beginchar("Double Flat", "-4", "flatflat")
+ save left_wid, overlap, right_wid;
+ left_wid = .7;
+ right_wid = .8;
+ overlap = .05;
+ set_char_box(1.2 stafflinethickness#, (left_wid + right_wid -overlap) *staff_space#, .6 staff_space#, 1.9 staff_space#);
+ draw_meta_flat(0, left_wid* staff_space, 1/3 staff_space);
+ draw_meta_flat(round ((left_wid - overlap) *staff_space),
+ right_wid *staff_space, 0.33 staff_space);
+ fet_endchar;
+
+fet_beginchar("3/4 Flat", "-3", "threeqflat")
+ save left_wid, overlap, right_wid;
+ left_wid = .7;
+ right_wid = .8;
+ overlap = .05;
+ set_char_box(1.2 stafflinethickness#, (left_wid + right_wid -overlap) *staff_space#, .6 staff_space#, 1.9 staff_space#);
+ draw_meta_flat(0, left_wid* staff_space, 1/3 staff_space);
+ draw_meta_flat(round ((left_wid - overlap) *staff_space),
+ right_wid *staff_space, 0.33 staff_space);
+
+ %% maybe we should clip part of the stems?
+ %% or make the 1st flat smaller?
+ %% or reverse it?
+ pickup pencircle scaled 2 stafflinethickness;
+ z12 = ( - .25 w - b, .55 staff_space);
+ z13 = ( .75 w , 1.45 staff_space);
+ draw z12 -- z13;
+ fet_endchar;
+
+
+fet_beginchar("Double Sharp", "4", "sharpsharp")
+ set_char_box(0, staff_space#, .5 staff_space#, .5 staff_space#);
save klaverblad, klaversteel;
- klaversteel = 1/12 interline;
- klaverblad = 1/3 interline;
+ klaversteel = 1/15 staff_space;
+ klaverblad = .40 staff_space - .5 stafflinethickness;
z1 = (klaversteel, 0);
z2 = (w/2 - klaverblad / 10, h - klaverblad);
z4 = z2 reflectedabout((0,0), (1,1));
z5 = z1 reflectedabout((0,0), (1,1));
-% labels(1,2,3,4,5);
- draw_rounded_path(
- z1{dir 45} .. {right}z2 -- z3 -- z4{down} .. {dir 225}z5 .. cycle,
- 1/20 interline);
+ labels(1,2,3,4,5);
+ pickup pencircle scaled blot_diameter;
+ filldraw
+ z1{dir 45} .. {right}z2 -- z3 --
+ z4{down} .. {dir 225}z5 .. cycle;
+
addto currentpicture also currentpicture yscaled (-d/h);
addto currentpicture also currentpicture xscaled (-1);
currentpicture := currentpicture shifted (w/2,0);
- fet_endchar;
+fet_endchar;
+
+
+def draw_paren =
+ save leftindent;
+ leftindent# := .2 staff_space#;
+ define_pixels(leftindent);
+ set_char_box(0, .5 staff_space#+stafflinethickness#,
+ staff_space#, staff_space#);
+ z1 = (leftindent,h);
+ z2 = (w-stafflinethickness,0);
+ z3 = (leftindent,-d);
+
+ penpos1(stafflinethickness, 35);
+ penpos2(.1 staff_space + stafflinethickness, 0);
+ penpos3(stafflinethickness, -35);
+
+ penlabels(1,2,3);
+ fill z2l{down} .. simple_serif(z3l, z3r, 90) .. z2r{up}
+ .. simple_serif(z1r, z1l, 90) .. z2l{down} -- cycle;
+enddef;
+
+fet_beginchar("Right Parenthesis", "rightparen", "rightparen")
+ draw_paren;
+fet_endchar;
+
+fet_beginchar("Left Parenthesis", "leftparen", "leftparen")
+ draw_paren;
+ currentpicture := currentpicture xscaled -1;
+ set_char_box(charwd, charbp, chardp, charht);
+fet_endchar;
fet_endgroup("accidentals");
projects / lilypond.git / blobdiff