%
% source file of LilyPond's pretty-but-neat music font
%
-% (c) 1997--2001 Jan Nieuwenhuizen <janneke@gnu.org>
+% (c) 1997--2002 Jan Nieuwenhuizen <janneke@gnu.org>
% & Han-Wen Nienhuys <hanwen@cs.uu.nl>
+% & Juergen Reuter <reuter@ipd.uka.de>
%
noteheight#:=staff_space#+ (1 + overdone_heads) *stafflinethickness#;
define_pixels(noteheight);
-
-%%%%%%%%
-%
-%
-%
-% MENSURAL NOTATION
-%
-%
-%
-brevis_wid# := 2 staff_space#;
-
-def draw_brevis(expr brevwid) =
- save beamheight, head_width;
- save holeheight, stem_width;
- save serif_size, serif_protrude;
-
- head_width# = brevwid;
- holeheight = 3 stafflinethickness;
- stem_width = 1.4 stafflinethickness;
-
-
- define_pixels(head_width);
- set_char_box(0, head_width#, noteheight#/2, noteheight#/2);
-
- 2 beamheight + holeheight = noteheight;
- serif_size = (holeheight - stafflinethickness)/2;
- serif_protrude = 1.5 serif_size;
- penpos1(stem_width, 0);
- penpos2(stem_width, 0);
- penpos3(beamheight, 90);
- penpos4(beamheight, 90);
- penpos5(stem_width, 180);
-
- z1l = (0, 0);
- z2l = (0, -stafflinethickness/2);
- z3r = z2r + serif_size *(1,-1);
- y4r = y3r;
- x4r = head_width/2;
- z5l = z3l + (-serif_size, -serif_protrude);
-
- penlabels(1,2,3,4, 5);
- fill z1r -- z1l -- z5r{down} .. z5l{up} .. z3l{right}
- -- z4l -- z4r -- z3r{left} .. z2r{up} -- cycle;
-
- addto currentpicture also currentpicture yscaled -1;
- show z4r; show z4l;
- addto currentpicture also currentpicture
- shifted (-x4r,0) xscaled -1 shifted (x4l,0);
-
-enddef;
-
-
-%
-% Some sources (eg Musix/OpusTeX think that the appendage should be on
-% the left, some say right. Right wins democratically.
-%
-def draw_longa (expr wid) =
- draw_brevis(wid);
- save theta;
-
- x7r = head_width;
- y7 = y5;
-% z7 = z5;
- z6 - z7 = (stem_width/2, -staff_space);
- theta = angle(z6-z7)+ 90;
- penpos7(stem_width, theta);
- penpos6(1.2 stem_width, theta);
-
- fill z7r .. z6r{z6-z7} .. {z7-z6} z6l -- z7l -- cycle;
- penlabels(6,7);
-enddef;
-
%
-% En wij presenteren U: de opvolgster van Emily
-%
-% (ze is wel breed)
-%
-fet_beginchar("Maxima notehead", "-3mensural", "mensuralmaximahead");
- draw_longa (1.3 brevis_wid#)
-fet_endchar;
-
-fet_beginchar("Longa notehead", "-2mensural", "mensurallongahead");
- draw_longa (brevis_wid#)
-fet_endchar;
-
-fet_beginchar("Brevis notehead", "-1mensural", "mensuralbrevishead")
- draw_brevis(brevis_wid#);
-fet_endchar;
-def draw_mensural_black_head (expr wid) =
- save head_width;
- head_width# = wid;
- set_char_box (0, head_width#, noteheight#/2, noteheight#/2);
-
-
- y3 = y1 =0;
- x2 = x4 = (x1 + x3) /2;
- define_pixels (head_width);
- pickup pencircle scaled blot_diameter;
- top y2 = h;
- bot y4 = -d;
- lft x1 = 0;
- rt x3 = w;
-
- filldraw z1 -- z2 -- z3 -- z4 -- cycle;
-enddef;
-
-def draw_mensural_open_head (expr wid)=
- draw_mensural_black_head (wid);
- save diamNW, diamSW;
- diamNW = length (z2 - z1) + blot_diameter;
- diamSW = length (z4 - z1) + blot_diameter;
-
- save hole_widthNW, hole_widthSW;
- hole_widthNW = 0.34 diamNW ;
- hole_widthSW + 2.6 stafflinethickness = diamSW;
-
- (z7 + z5)/2 = (w/2, 0);
- (z8 + z6)/2 = (w/2, 0);
- (z6 - z5) = hole_widthNW * unitvector (z2 - z1);
- (z7 - z6) = hole_widthSW * unitvector (z4 - z1);
-
- labels (1,2,3,4,5,6,7,8);
-
- unfill z5 -- z6 -- z7 -- z8 --cycle;
-enddef;
-
-fet_beginchar("Mensural open head","0mensural","mensuralminimhead")
- draw_mensural_open_head (staff_space#);
-fet_endchar;
-
-fet_beginchar("Mensural open head","1mensural","mensuralsemiminimhead")
- draw_mensural_open_head (staff_space#);
-fet_endchar;
-
-fet_beginchar("Mensural black head","2mensural","fusahead")
- draw_mensural_black_head (staff_space#);
-fet_endchar;
-
-
-%%%%%%%%%%%%
-%
+%%% TODO: Document these!
%
-% ledger (leger) lines
-%
-fet_beginchar("Ledger ending", "ledgerending", "ledgerending")
-set_char_box (5/2 ledgerlinethickness#, 5/2 ledgerlinethickness#,
- ledgerlinethickness#/2,ledgerlinethickness#/2);
- pickup pencircle scaled 1.3 blot_diameter;
-
- rt x2 = w;
- lft x1 = -b;
- x3 = x2;
- bot y1 = -d;
- y2 = y1;
-
- top y3 = h;
- y4 = y3;
- x4 = x1;
-
- filldraw z1 --- z2 --- z3 --- z4 --- cycle ;
-fet_endchar;
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%
-%
-%
-%
-%
-% TODO: Document these!
% setup user vars
def setup_notehead_vars =
fill black;
fet_endchar;
-save triangle; path triangle;
-triangle = (-sqrt3/4,-1/2) -- (0,1) -- (sqrt3/4,-1/2) -- cycle;
+
+
+begingroup;
+def def_triangle =
+ save triangle,kern; path triangle;
+ kern = 1/3(x2-x1);
+ z2 = z1 rotated 120;
+ z3 = z1 rotated 240;
+ z12 = caveness[.5[z1,z2],z3];
+ z23 = z12 rotated 120;
+ z31 = z12 rotated 240;
+ triangle = z1 .. z12 .. z2 ..
+ z2 .. z23 .. z3 ..
+ z3 .. z31 .. z1 ..
+ cycle;
+ triangle := triangle shifted (-x1+pent/2-kern,0) xscaled xs;
+ pickup pencircle scaled pent xscaled xs;
+ hei = max(y1,-y2)+pent/2;
+ %set_char_box(-kern*xs*fac, ((x3-x1)*fac+pent#)*xs,hei*fac,hei*fac);
+ set_char_box(0, ((x3-x1-kern)*fac+pent#)*xs,hei*fac,hei*fac);
+enddef;
+save fac,pent;
+fac = noteheight#/noteheight;
+pent# = 2stafflinethickness#;
+define_pixels(pent);
+
fet_beginchar("Whole trianglehead", "0triangle", "wholetrianglehead")
- set_char_box(0, 2(noteheight#+stafflinethickness#)/sqrt3*7/8,
- (noteheight#+stafflinethickness#)/2,(noteheight#+stafflinethickness#)/2);
- fill triangle scaled (7h/6) shifted (w/2,-h/6);
- unfill triangle scaled 0.72h shifted (w/2,-h/6);
+ save hei,xs;
+ z1 = dir(130)*3/4noteheight;
+ xs = 1.5;
+ caveness:=0.1;
+ def_triangle;
+ draw triangle;
fet_endchar;
+
fet_beginchar("Half trianglehead", "1triangle", "halftrianglehead")
- thick := 1.2stafflinethickness;
- set_char_box(0, 2noteheight#/sqrt3*7/8,noteheight#/2,noteheight#/2);
- fill triangle scaled (7h/6) shifted (w/2,-h/6);
- unfill triangle scaled 0.7h shifted (w/2,-h/6);
+ save hei,xs;
+ z1 = dir(130)*2/3noteheight;
+ xs = 1.2;
+ caveness:=0.1;
+ def_triangle;
+ draw triangle;
fet_endchar;
+
fet_beginchar("Quart trianglehead", "2triangle", "trianglehead")
- thick := 1.2stafflinethickness;
- set_char_box(0, 2noteheight#/sqrt3*7/8,noteheight#/2,noteheight#/2);
- fill triangle scaled (7h/6) shifted (w/2,-h/6);
+ save hei,xs;
+ z1 = dir(130)*2/3noteheight;
+ xs = 1.0;
+ caveness:=0.1;
+ def_triangle;
+ filldraw triangle;
fet_endchar;
+endgroup;
+
%%% Editable values:
slope := 1.7; % slope of slash. From scm/grob-description.scm. How to auto-copy?
-slt := 2/3*0.48staff_space; % thickness of lines. quarter notes get 1.5slt width.
-slh := 2staff_space; % height of char.
+slt# := 2/3*0.48staff_space#; % thickness of lines. quarter notes get 1.5slt width.
+slh# := 2staff_space#; % height of char.
%%% Calculated values:
-sxa := 0; % how much the char exceeds the boundingbox horizontally:
-slxt := sqrt(slt*slt+(slt/slope)*(slt/slope)); % Width of hor. pen - with thanks to Pythagoras
-slw := slh/slope; % width of sloping part of slash:
-
-% is this really nessesary? -rz
-fac# := staff_space#/staff_space;
-slt# := fac#*slt;
-slh# := fac#*slh;
-sxa# := fac#*sxa;
-slxt# := fac#*slxt;
-slw# := fac#*slw;
-
-def draw_slash(expr hwid) =
- wid# := slw#+2slxt#+hwid*fac#;
+sxa# := 0; % how much the char exceeds the boundingbox horizontally:
+slxt# := sqrt(slt#*slt#+(slt#/slope)*(slt#/slope)); % Width of hor. pen - with thanks to Pythagoras
+slw# := slh#/slope; % width of sloping part of slash:
+
+define_pixels(slt,slh,sxa,slxt,slw);
+
+def draw_slash(expr hwid_hash) =
+ wid# := slw#+2slxt#+hwid_hash;
set_char_box(0,wid#-2sxa#,slh#/2,slh#/2);
define_pixels (wid#);
pickup penrazor scaled slxt;
enddef;
fet_beginchar("Whole slashhead","0slash","wholeslashhead")
- draw_slash(staff_space);
+ draw_slash(staff_space#);
fet_endchar;
fet_beginchar("Half slashhead","1slash","halfslashhead")
- draw_slash(0.6staff_space);
+ draw_slash(0.6staff_space#);
fet_endchar;
fet_beginchar("Quart slashhead","2slash","quartslashhead")
- draw_slash(-slxt/2);
+ draw_slash(-slxt#/2);
fet_endchar;
% thick is the distance between the two parallel lines in the cross (distance between centres of lines)
fet_endchar;
fet_beginchar("X-Circled notehead", "2xcircle", "xcircledhead")
- set_char_box(0, noteheight#+stafflinethickness#,
- noteheight#/2+stafflinethickness#/2,noteheight#/2+stafflinethickness#/2);
- pickup pencircle scaled 1.2stafflinethickness;
- draw fullcircle scaled 2h shifted (h,0);
- pos := h/sqrt2;
- draw (-pos+h,-pos) -- (pos+h,pos);
- draw (-pos+h,pos) -- (pos+h,-pos);
+ wid# := black_notehead_width#*sqrt(sqrt2);
+ hei# := noteheight#*sqrt(sqrt2);
+ set_char_box(0, wid#,hei#/2,hei#/2);
+ cthick := (1.2+1/4)*stafflinethickness;
+ cxr := w/2-cthick/2;
+ cyr := h-cthick/2;
+ pickup pencircle scaled cthick;
+ draw fullcircle xscaled 2cxr yscaled 2cyr shifted (w/2,0);
+ xpos := cxr/sqrt2;
+ ypos := cyr/sqrt2;
+ draw (-xpos+w/2,-ypos) -- (xpos+w/2,ypos);
+ draw (-xpos+w/2,ypos) -- (xpos+w/2,-ypos);
fet_endchar;
+
+%%%%%%%%%%%%
+%
+%
+% ledger (leger) lines
+%
+fet_beginchar("Ledger ending", "ledgerending", "ledgerending")
+set_char_box (5/2 ledgerlinethickness#, 5/2 ledgerlinethickness#,
+ ledgerlinethickness#/2,ledgerlinethickness#/2);
+ pickup pencircle scaled 1.3 blot_diameter;
+
+ rt x2 = w;
+ lft x1 = -b;
+ x3 = x2;
+ bot y1 = -d;
+ y2 = y1;
+
+ top y3 = h;
+ y4 = y3;
+ x4 = x1;
+
+ filldraw z1 --- z2 --- z3 --- z4 --- cycle ;
+fet_endchar;
+
+
fet_endgroup("noteheads");
define_pixels(black_notehead_width);
projects / lilypond.git / blobdiff