3 % Functions for direct and embedded PostScript
5 % Careful with double % as comment prefix.
6 % Any %%X comment is interpreted as DSC comments.
8 % TODO: use dicts or prefixes to prevent namespace pollution.
11 {pop} {userdict /pdfmark /cleartomark load put} ifelse
23 /Rect [ llx lly urx ury ]
38 % llx lly urx ury page
47 /Rect [ llx lly urx ury ]
56 % from adobe tech note 5002.
58 /b4_Inc_state save def % Save state for cleanup
59 /dict_count countdictstack def % Count objects on dict stack
60 /op_count count 1 sub def % Count objects on operand stack
61 userdict begin % Push userdict on dict stack
62 /showpage { } def % Redefine showpage, { } = null proc
63 0 setgray 0 setlinecap % Prepare graphics state
64 1 setlinewidth 0 setlinejoin
65 10 setmiterlimit [ ] 0 setdash newpath
70 count op_count sub {pop} repeat % Clean up stacks
71 countdictstack dict_count sub {end} repeat
88 /vector_add { % x1 y1 x2 y2 vector_add x1+x2 y1+y2
97 /draw_round_box % width height x y blot
101 setlinewidth % w h x y
103 2 copy 0 ne exch 0 ne and
107 currentpoint % w h x1 y1
119 currentpoint % w h x1 y1
125 /draw_polygon % fill? x(n) y(n) x(n-1) y(n-1) ... x(0) y(0) n blot
127 setlinewidth %set to blot
138 { polygon_x polygon_y vector_add lineto } repeat % n times
143 /draw_circle % filled? radius thickness draw_circle
146 currentpoint % f? r x0 y0
147 3 2 roll % f? x0 y0 r
153 /draw_ellipse % filled? x-radius y-radius thickness draw_ellipse
155 setlinewidth % f? x-r y-r
156 /savematrix matrix currentmatrix def
160 1 0 360 arc closepath
165 /draw_partial_ellipse % filled connect x-radius y-radius startangle endangle thickness draw_partial_ellipse
166 % Note that filled is not boolean to permit for different graylevels (ie for trill keys)
169 currentpoint translate
175 /endrad x_radius y_radius mul
176 x_radius x_radius mul
177 endangle cos endangle cos mul mul
178 y_radius y_radius mul
179 endangle sin endangle sin mul mul add sqrt div def
180 /endangle endangle sin endrad mul y_radius div
181 endangle cos endrad mul x_radius div atan def
182 /startrad x_radius y_radius mul
183 x_radius x_radius mul
184 startangle cos startangle cos mul mul
185 y_radius y_radius mul
186 startangle sin startangle sin mul mul add sqrt div def
187 /startangle startangle sin startrad mul y_radius div
188 startangle cos startrad mul x_radius div atan def
191 /savematrix matrix currentmatrix def
192 thickness setlinewidth
193 x_radius y_radius scale
194 startangle cos startangle sin moveto
196 startangle endangle eq { endangle 360 add } { endangle } ifelse
199 startangle cos startangle sin moveto endangle cos endangle sin lineto }
201 savematrix setmatrix filled stroke_and_fill?
205 /draw_line % dx dy x1 y1 thickness draw_line
207 setlinewidth % dx dy x1 y1
215 /draw_dashed_line % dx dy thickness dashpattern offset draw_dashed_line
219 setdash % dx dy thickness
223 [] 0 setdash % reset dash pattern
226 /print_glyphs % w dx dy glyph print_glyphs
229 currentpoint %w dx dy glyph x0 y0
230 5 2 roll %w x0 y0 dx dy glyph
231 3 1 roll %w x0 y0 glyph dx dy
232 rmoveto %w x0 y0 glyph
238 %end music-drawing-routines.ps