--- /dev/null
+
+%
+% Dedicated to my mom. (3/10/97)
+%
+% Mamma, ik hou van je; kom je alsjeblieft terug?
+% -- HW
+%
+%
+% TODO: remove crook_fatness
+% TODO: document, simplify!
+%
+
+def draw_meta_flat (expr xcenter, w, crook_fatness, arrowup, arrowdown) =
+ save crook_thinness;
+ save bottom_overshoot, bot_crook_dir;
+ save top_stem_thick, top_stem_thick_orig;
+ save bottom_stem_thick, hair, smaller_hole;
+ save top_crook_thinness;
+ save zwiep;
+ save center;
+ pair center, bot_crook_dir;
+ save clearing, clearing_orig;
+
+ clearxy;
+
+ % the stem shouldn't reach the top staff line.
+ %% TODO: should take from height.
+ %
+ % TODO: parameterize this
+ %
+ if w >= 0.75 staff_space:
+ smaller_hole = 0.35 stafflinethickness;
+ else:
+ smaller_hole = 0;
+ fi;
+ crook_thinness = .7 stafflinethickness + .06 staff_space;
+ top_crook_thinness = 1 stafflinethickness + .065 staff_space;
+ clearing = 1.7 stafflinethickness;
+ clearing_orig = clearing;
+ if arrowup:
+ clearing := 0.5 staff_space;
+ fi;
+ bottom_overshoot = stafflinethickness;
+
+ bottom_stem_thick# = 0.06 staff_space# + 0.6 stafflinethickness#;
+ top_stem_thick# = 0.1 staff_space# + 1.2 stafflinethickness#;
+ top_stem_thick_orig# = top_stem_thick#;
+ if arrowup:
+ % to look nice, arrowed stems should be less brushed
+ top_stem_thick# := top_stem_thick# * 0.8;
+ fi;
+ define_whole_blacker_pixels (bottom_stem_thick, top_stem_thick,
+ top_stem_thick_orig);
+
+ if odd (top_stem_thick - bottom_stem_thick):
+ top_stem_thick := top_stem_thick - 1;
+ fi;
+ if odd (top_stem_thick_orig - bottom_stem_thick):
+ top_stem_thick_orig := top_stem_thick_orig - 1;
+ fi;
+
+ center = (xcenter, 0);
+
+ x1l = hround (xcenter - .5 top_stem_thick);
+ y1 = vround (2 staff_space - clearing);
+ x2l = hround (xcenter - .5 bottom_stem_thick);
+ y2 = -.5 staff_space - .5 stafflinethickness;
+ % z16 and the `*_orig' variables are needed for arrowed accidentals
+ % because their inner part should be unchanged from plain ones but
+ % the points z3l, z3r, and z10 depend on values that are different
+ % for arrowed accidentals
+ x16l = hround (xcenter -.5 top_stem_thick_orig);
+ y16 = vround (2 staff_space - clearing_orig);
+
+ penpos1 (top_stem_thick, 0);
+ penpos16 (top_stem_thick_orig, 0);
+ penpos2 (bottom_stem_thick, 0);
+
+ y3l = vfloor ((staff_space - stafflinethickness) / 2);
+ z3l = whatever [z2r, z1r];
+ z3r = .3 [z2r,
+ (z16r shifted (0, clearing_orig - 1.7 stafflinethickness))]
+ + (smaller_hole, 0);
+ x3r := hceiling x3r;
+
+ % we insert z3l to get better conversion with mf2pt1
+ fill simple_serif (z1r, z1l, 30)
+ -- z2l
+ -- z2r
+ -- z3l
+ -- cycle;
+
+ z10 = whatever [z2r, z16r] + (smaller_hole, 0);
+ y10 = -1/10 staff_space;
+ x10 := hceiling x10;
+
+ x11 = xcenter + bottom_overshoot / 3;
+ y11 = -vround (.5 (staff_space + stafflinethickness)
+ + bottom_overshoot);
+
+ x2a = 0.2[x2r, x7];
+ y2a = 1.5[y2, y11];
+
+ penpos4 (whatever, 53);
+
+ y4l - y4r = top_crook_thinness;
+ y5r = .15 staff_space;
+ x5l = hround (w + xcenter);
+ y4 = staff_space / 2;
+ x4r = .45 [x5r, x3r];
+ y4l := vround y4l;
+
+ penpos5 (crook_fatness, -175);
+
+ bot_crook_dir = unitvector ((x5l, 0) - z11);
+ z8 = z11 + whatever * bot_crook_dir;
+ y8 = -staff_space / 2;
+
+ z7 = z8
+ + whatever * bot_crook_dir
+ + crook_thinness * (bot_crook_dir rotated 90);
+ x7 = .1 [x3r, x8];
+
+ unfill z3r{z3r - z10}
+ .. z4r{right}
+ .. z5r{down}
+ .. z7{-bot_crook_dir}
+ & z7
+ .. z10{z3r - z10}
+ -- cycle;
+
+ if arrowdown:
+ fill z2l{down}
+ .. z2a{up}
+ .. z8{bot_crook_dir}
+ .. z5l{up}
+ .. z4l{left}
+ .. z3l
+ -- cycle;
+ else:
+ fill z2l{down}
+ .. z11{right}
+ .. z8{bot_crook_dir}
+ .. z5l{up}
+ .. z4l{left}
+ .. z3l
+ -- cycle;
+ fi;
+
+ if arrowup:
+ draw_arrow (z1, top_stem_thick, z1l - z2l,
+ 0.5 stafflinethickness, false);
+ fi;
+ if arrowdown:
+ draw_arrow ((0.5 [x2l, x2a], y2), x2a - x2l, up,
+ staff_space / 2, true);
+ fi;
+enddef;
+
+
+def draw_arrowed_meta_flat (expr xcenter, width, crook_fatness,
+ arrowup, arrowdown) =
+ save depth, height, extendleft;
+
+ depth# = 0.6 staff_space#;
+ height# = 1.9 staff_space#;
+ extendleft# := 1.2 stafflinethickness#;
+ if arrowup:
+ extendleft# := 3.45 stafflinethickness#;
+ height# := height# + 0.8 staff_space#;
+ fi;
+ if arrowdown:
+ extendleft# := 3.45 stafflinethickness#;
+ depth# := depth# + 1.6 staff_space#;
+ fi;
+
+ set_char_box (extendleft#, width, depth#, height#);
+ draw_meta_flat(xcenter, w, crook_fatness, arrowup, arrowdown);
+enddef;
+
+%
+% unfortunately, 600dpi is not enough to show the brush of the stem.
+%
+
+fet_beginchar ("Flat", "flat");
+ draw_arrowed_meta_flat (0, 0.8 staff_space#, 0.31 staff_space,
+ false, false);
+ penlabels (range 0 thru 11);
+
+ draw_staff_if_debugging (-2, 2);
+fet_endchar;
+
+
+fet_beginchar ("Arrowed Flat (arrow up)", "flat.arrowup");
+ draw_arrowed_meta_flat (0, 0.8 staff_space#, 0.31 staff_space,
+ true, false);
+ penlabels (range 0 thru 23);
+
+ draw_staff_if_debugging (-2, 2);
+fet_endchar;
+
+
+fet_beginchar ("Arrowed Flat (arrow down)", "flat.arrowdown");
+ draw_arrowed_meta_flat (0, 0.8 staff_space#, 0.31 staff_space,
+ false, true);
+ penlabels (range 0 thru 23);
+
+ draw_staff_if_debugging (-2, 2);
+fet_endchar;
+
+
+fet_beginchar ("Arrowed Flat (arrow up and down)", "flat.arrowboth");
+ draw_arrowed_meta_flat (0, 0.8 staff_space#, 0.31 staff_space,
+ true, true);
+ penlabels (range 0 thru 23);
+
+ draw_staff_if_debugging (-2, 2);
+fet_endchar;
+
+
+fet_beginchar ("Flat (slashed)", "flat.slash");
+ set_char_box (.4 staff_space#, .8 staff_space#,
+ 0.6 staff_space#, 1.9 staff_space#);
+
+ draw_meta_flat (0, w, 0.31 staff_space, false, false);
+
+ clearxy;
+
+ save slope, slash_width;
+ slope = 0.5;
+ slash_width = w;
+
+ z11 = (0, h / 2);
+ z12 = z11 - (slash_width, slash_width * slope) / 2;
+ z13 = z11 + (slash_width, slash_width * slope) / 2;
+ penpos12 (1.5 stafflinethickness, angle (z13 - z12) - 90);
+ penpos13 (1.5 stafflinethickness, angle (z13 - z12) - 90);
+
+ z14 = z12 - .75 stafflinethickness * unitvector (z13 - z12);
+ z15 = z13 + .75 stafflinethickness * unitvector (z13 - z12);
+
+ fill z13r
+ .. z15
+ .. z13l
+ -- z12l
+ .. z14
+ .. z12r
+ -- z13r
+ .. cycle;
+
+ penlabels (12, 13);
+ labels (14, 15);
+
+ draw_staff_if_debugging (-2, 2);
+fet_endchar;
+
+
+fet_beginchar ("Flat (slashed twice)", "flat.slashslash");
+ set_char_box (.4 staff_space#, .8 staff_space#,
+ 0.6 staff_space#, 1.9 staff_space#);
+
+ draw_meta_flat (0, w, 0.31 staff_space, false, false);
+
+ clearxy;
+
+ save slope, slash_width;
+ slope = 0.5;
+ slash_width = w;
+
+ z11 = (0, 5/12 h);
+ z12 = z11 - (slash_width, slash_width * slope) / 2;
+ z13 = z11 + (slash_width, slash_width * slope) / 2;
+ penpos12 (1.5 stafflinethickness, angle (z13 - z12) - 90);
+ penpos13 (1.5 stafflinethickness, angle (z13 - z12) - 90);
+
+ z14 = z12 - .75 stafflinethickness * unitvector (z13 - z12);
+ z15 = z13 + .75 stafflinethickness * unitvector (z13 - z12);
+
+ fill z13r
+ .. z15
+ .. z13l
+ -- z12l
+ .. z14
+ .. z12r
+ -- z13r
+ .. cycle;
+
+ penlabels (12, 13);
+ labels (14, 15);
+
+ z21 = (0, 2/3 h);
+ z22 = z21 - (slash_width, slash_width * slope) / 2;
+ z23 = z21 + (slash_width, slash_width * slope) / 2;
+ penpos22 (1.5 stafflinethickness, angle (z23 - z22) - 90);
+ penpos23 (1.5 stafflinethickness, angle (z23 - z22) - 90);
+
+ z24 = z22 - .75 stafflinethickness * unitvector (z23 - z22);
+ z25 = z23 + .75 stafflinethickness * unitvector (z23 - z22);
+
+ fill z23r
+ .. z25
+ .. z23l
+ -- z22l
+ .. z24
+ .. z22r
+ -- z23r
+ .. cycle;
+
+ penlabels (22, 23);
+ labels (24, 25);
+
+ draw_staff_if_debugging (-2, 2);
+fet_endchar;
+
+
+fet_beginchar ("Flatflat (mirrored)", "mirroredflat.flat");
+ set_char_box (0, 1.6 staff_space#,
+ 0.6 staff_space#, 1.9 staff_space#);
+
+ % This is a modified version of `draw_meta_flat'.
+
+ save crook_thinness, crook_fatness;
+ save bottom_overshoot, bot_crook_dir;
+ save top_stem_thick, bottom_stem_thick, hair, smaller_hole;
+ save top_crook_thinness;
+ save zwiep;
+ save center;
+ pair center, bot_crook_dir;
+ save clearing, wid;
+ save pat;
+ path pat;
+
+ clearxy;
+
+ wid = w / 2;
+
+ % the stem shouldn't reach the top staff line.
+ %% TODO: should take from height.
+ %
+ % TODO: parameterize this
+ %
+ if wid >= 0.75 staff_space:
+ smaller_hole = 0.35 stafflinethickness;
+ else:
+ smaller_hole = 0;
+ fi;
+ clearing = 1.7 stafflinethickness;
+ crook_thinness = .7 stafflinethickness + .06 staff_space;
+ crook_fatness = 0.31 staff_space;
+ top_crook_thinness = 1 stafflinethickness + .065 staff_space;
+ bottom_overshoot = stafflinethickness;
+
+ bottom_stem_thick# = 0.06 staff_space# + 0.6 stafflinethickness#;
+ top_stem_thick# = 0.1 staff_space# + 1.2 stafflinethickness#;
+ define_whole_blacker_pixels (bottom_stem_thick, top_stem_thick);
+
+ if odd (top_stem_thick - bottom_stem_thick):
+ top_stem_thick := top_stem_thick - 1;
+ fi;
+
+ center = (0, 0);
+
+ x1l = hround (-.5 top_stem_thick);
+ y1 = vround (2 staff_space - clearing);
+ x2l = hround (-.5 bottom_stem_thick);
+ y2 = -.5 staff_space - .5 stafflinethickness;
+
+ penpos1 (top_stem_thick, 0);
+ penpos2 (bottom_stem_thick, 0);
+
+ y3l = vfloor ((staff_space - stafflinethickness) / 2);
+ z3l = whatever [z2r, z1r];
+ z3r = .3 [z2r, z1r] + (smaller_hole, 0);
+ x3r := hceiling x3r;
+
+ z10 = whatever [z2r, z1r] + (smaller_hole, 0);
+ y10 = -1/10 staff_space;
+ x10 := hceiling x10;
+
+ x11 = bottom_overshoot / 3;
+ y11 = -vround (.5 (staff_space + stafflinethickness)
+ + bottom_overshoot);
+
+ penpos4 (whatever, 53);
+
+ y4l - y4r = top_crook_thinness;
+ y5r = .15 staff_space;
+ x5l = hround (wid);
+ y4 = staff_space / 2;
+ x4r = .45 [x5r, x3r];
+ y4l := vround y4l;
+
+ penpos5 (crook_fatness, -175);
+
+ bot_crook_dir = unitvector ((x5l, 0) - z11);
+ z8 = z11 + whatever * bot_crook_dir;
+ y8 = -staff_space / 2;
+
+ z7 = z8
+ + whatever * bot_crook_dir
+ + crook_thinness * (bot_crook_dir rotated 90);
+ x7 = .1 [x3r, x8];
+
+ pat := z3r{z3r - z10}
+ .. z4r{right}
+ .. z5r{down}
+ .. z7{-bot_crook_dir}
+ & z7
+ .. z10{z3r - z10}
+ -- cycle;
+ unfill pat;
+ unfill pat xscaled -1;
+
+ pat := z11{right}
+ .. z8{bot_crook_dir}
+ .. z5l{up}
+ .. z4l{left}
+ .. z3l;
+ fill pat
+ -- simple_serif (z1r, z1l, 30)
+ -- reverse pat xscaled -1 shifted (-feta_eps, 0)
+ -- cycle;
+
+ currentpicture := currentpicture shifted (w/2, 0);
+
+ draw_staff_if_debugging (-2, 2);
+fet_endchar;
+
+
+fet_beginchar ("Semi flat", "mirroredflat");
+ 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, false, false);
+ currentpicture := currentpicture xscaled -1 shifted (w - b, 0);
+fet_endchar;
+
+
+fet_beginchar ("Semi flat", "mirroredflat.backslash");
+ set_char_box (.4 staff_space#, .8 staff_space#,
+ 0.6 staff_space#, 1.9 staff_space#);
+
+ draw_meta_flat (0, w, 0.31 staff_space, false, false);
+
+ clearxy;
+
+ save slope, slash_width;
+ slope = 0.5;
+ slash_width = w;
+
+ z11 = (0, h / 2);
+ z12 = z11 - (slash_width, slash_width * slope) / 2;
+ z13 = z11 + (slash_width, slash_width * slope) / 2;
+ penpos12 (1.5 stafflinethickness, angle (z13 - z12) - 90);
+ penpos13 (1.5 stafflinethickness, angle (z13 - z12) - 90);
+
+ z14 = z12 - .75 stafflinethickness * unitvector (z13 - z12);
+ z15 = z13 + .75 stafflinethickness * unitvector (z13 - z12);
+
+ fill z13r
+ .. z15
+ .. z13l
+ -- z12l
+ .. z14
+ .. z12r
+ -- z13r
+ .. cycle;
+
+ currentpicture := currentpicture xscaled -1 shifted (w - b, 0);
+
+ labels (1, 2, 3);
+fet_endchar;
+
+
+fet_beginchar ("Double Flat", "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,
+ false, false);
+ draw_meta_flat (hround ((left_wid - overlap) * staff_space),
+ right_wid * staff_space, 1/3 staff_space,
+ false, false);
+fet_endchar;
+
+
+fet_beginchar ("3/4 Flat", "flatflat.slash");
+ 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,
+ false, false);
+ draw_meta_flat (hround ((left_wid - overlap) * staff_space),
+ right_wid * staff_space, 1/3 staff_space,
+ false, false);
+
+ %% maybe we should clip part of the stems?
+ %% or make the 1st flat smaller?
+ %% or reverse it?
+ pickup pencircle scaled 2 stafflinethickness;
+
+ z12 = round (-.25 w - b, .55 staff_space) + feta_offset;
+ z13 = round (.75 w, 1.45 staff_space) + feta_offset;
+ penpos12 (2 stafflinethickness, angle (z13 - z12) - 90);
+ penpos13 (2 stafflinethickness, angle (z13 - z12) - 90);
+
+ z14 = z12 - stafflinethickness * unitvector (z13 - z12);
+ z15 = z13 + stafflinethickness * unitvector (z13 - z12);
+
+ fill z13r
+ .. z15
+ .. z13l
+ -- z12l
+ .. z14
+ .. z12r
+ -- z13r
+ .. cycle;
+
+ penlabels (12, 13);
+ labels (14, 15);
+
+ draw_staff_if_debugging (-2, 2);
+fet_endchar;
projects / lilypond.git / blobdiff