%%Header file for PMW PostScript output
% Last modified for Acorn version: 23 February 1997
% Last modified for original Linux version: 28 August 2003
% Re-jigged for Unicode and more than 256 chars per font support: August 2005
% Added extra functions for right-to-left printing: January 2009
% Added function for drawing staves: January 2012
% Made top comment above a %% comment: January 2012
% Updated for remaining Latin Extended-A characters: December 2013
% Removed redundant FontDirectory check which was causing problems for one
%   user and is clearly not useful: June 2022
% Updated for custom font encoding: July 2022
% Modified custom font encoding to modify rather than replace: May 2023
% Allow custom encoding to apply to fonts that use Standard Encoding: May 2023
% Add abbreviation for setrgbcolor: October 2023


% We are going to bind each text font twice, to give us 512 characters to play
% with. This is sufficient to encode all existing characters in the standard
% fonts. For fonts that use Adobe's standard encoding, we modify the encoding
% using the following two vectors before applying any custom encoding. The
% first 256 characters are encoded with the Unicode encoding.

/LowerEncoding 256 array def
LowerEncoding 0 [
% 00 - 0F
/currency/currency/currency/currency
/currency/currency/currency/currency
/currency/currency/currency/currency
/currency/currency/currency/currency
% 10 - 1F
/currency/currency/currency/currency
/currency/currency/currency/currency
/currency/currency/currency/currency
/currency/currency/currency/currency
% 20 - 2F
/space/exclam/quotedbl/numbersign
/dollar/percent/ampersand/quotesingle
/parenleft/parenright/asterisk/plus
/comma/hyphen/period/slash
% 30 - 3F
/zero/one/two/three
/four/five/six/seven
/eight/nine/colon/semicolon
/less/equal/greater/question
% 40 - 4F
/at/A/B/C/D/E/F/G/H/I/J/K/L/M/N/O
% 50 - 5F
/P/Q/R/S/T/U/V/W/X/Y/Z/bracketleft
/backslash/bracketright/asciicircum/underscore
% 60 - 6F
/grave/a/b/c/d/e/f/g/h/i/j/k/l/m/n/o
% 70 - 7F
/p/q/r/s/t/u/v/w/x/y/z/braceleft
/bar/braceright/asciitilde/currency
% 80 - 8F
/currency/currency/currency/currency
/currency/currency/currency/currency
/currency/currency/currency/currency
/currency/currency/currency/currency
% 90 - 9F
/currency/currency/currency/currency
/currency/currency/currency/currency
/currency/currency/currency/currency
/currency/currency/currency/currency
% A0 - AF
/space/exclamdown/cent/sterling
/currency/yen/brokenbar/section
/dieresis/copyright/ordfeminine/guillemotleft
/logicalnot/hyphen/registered/macron
% B0 - BF
/degree/plusminus/twosuperior/threesuperior
/acute/mu/paragraph/bullet
/cedilla/onesuperior/ordmasculine/guillemotright
/onequarter/onehalf/threequarters/questiondown
% C0 - CF
/Agrave/Aacute/Acircumflex/Atilde
/Adieresis/Aring/AE/Ccedilla
/Egrave/Eacute/Ecircumflex/Edieresis
/Igrave/Iacute/Icircumflex/Idieresis
% D0 - DF
/Eth/Ntilde/Ograve/Oacute
/Ocircumflex/Otilde/Odieresis/multiply
/Oslash/Ugrave/Uacute/Ucircumflex
/Udieresis/Yacute/Thorn/germandbls
% E0 - EF
/agrave/aacute/acircumflex/atilde
/adieresis/aring/ae/ccedilla
/egrave/eacute/ecircumflex/edieresis
/igrave/iacute/icircumflex/idieresis
% F0 - FF
/eth/ntilde/ograve/oacute
/ocircumflex/otilde/odieresis/divide
/oslash/ugrave/uacute/ucircumflex
/udieresis/yacute/thorn/ydieresis
]putinterval

% The next encoding vector uses Unicode for the first 128 characters (Latin
% Extended-A). Not all of these characters are in older Adobe-encoded fonts.
% The remaining code points in the vector are used arbitrarily for the
% remaining Adobe standardly encoded characters. This latter part of the
% encoding must be kept in step with the appropriate table in the code.

/UpperEncoding 256 array def
UpperEncoding 0 [
% 100 - 10F
/Amacron/amacron/Abreve/abreve
/Aogonek/aogonek/Cacute/cacute
/Ccircumflex/ccircumflex/Cdotaccent/cdotaccent
/Ccaron/ccaron/Dcaron/dcaron
% 110 - 11F
/Dcroat/dcroat/Emacron/emacron
/Ebreve/ebreve/Edotaccent/edotaccent
/Eogonek/eogonek/Ecaron/ecaron
/Gcircumflex/gcircumflex/Gbreve/gbreve
% 120 - 12F
/Gdotaccent/gdotaccent/Gcommaaccent/gcommaaccent
/Hcircumflex/hcircumflex/Hbar/hbar
/Itilde/itilde/Imacron/imacron
/Ibreve/ibreve/Iogonek/iogonek
% 130 - 13f
/Idotaccent/dotlessi/IJ/ij
/Jcircumflex/jcircumflex/Kcommaaccent/kcommaaccent
/kgreenlandic/Lacute/lacute/Lcommaaccent
/lcommaaccent/Lcaron/lcaron/Ldot
% 140 - 14F
/ldot/Lslash/lslash/Nacute
/nacute/Ncommaaccent/ncommaaccent/Ncaron
/ncaron/napostrophe/Eng/eng
/Omacron/omacron/Obreve/obreve
% 150 - 15F
/Ohungarumlaut/ohungarumlaut/OE/oe
/Racute/racute/Rcommaaccent/rcommaaccent
/Rcaron/rcaron/Sacute/sacute
/Scircumflex/scircumflex/Scedilla/scedilla
% 160 - 16F
/Scaron/scaron/Tcedilla/tcedilla
/Tcaron/tcaron/Tbar/tbar
/Utilde/utilde/Umacron/umacron
/Ubreve/ubreve/Uring/uring
% 170 - 17F
/Uhungarumlaut/uhungarumlaut/Uogonek/uogonek
/Wcircumflex/wcircumflex/Ycircumflex/ycircumflex
/Ydieresis/Zacute/zacute/Zdotaccent
/zdotaccent/Zcaron/zcaron/longs

% --------------------------------------------------------------------
% These are the remaining characters in the Adobe standard encoding,
% in alphabetic order (seems as good as any other).
% --------------------------------------------------------------------
% 180 - 18F
/Delta/Euro/Scommaaccent/Tcommaaccent
/breve/caron/circumflex/commaaccent
/dagger/daggerdbl/dotaccent/ellipsis
/emdash/endash/fi/fl
% 190 - 19F
/florin/fraction/greaterequal/guilsinglleft
/guilsinglright/hungarumlaut/lessequal/lozenge
/minus/notequal/ogonek/partialdiff
/periodcentered/perthousand/quotedblbase/quotedblleft
% 1A0 - 1AF
/quotedblright/quoteleft/quoteright/quotesinglbase
/radical/ring/scommaaccent/summation
/tcommaaccent/tilde/trademark/infinity
]putinterval

% 1B0 - 1FF
177 1 255 {UpperEncoding exch /.notdef put} for

% Straightforward abbreviations

/F/fill load def
/GS/gsave load def
/GR/grestore load def
/Mt/moveto load def/Lt/lineto load def
/R/rotate load def
/Rl/rlineto load def/Rm/rmoveto load def
/Ct/curveto load def/Rc/rcurveto load def
/S/stroke load def
/Slw/setlinewidth load def
/Slc/setlinecap load def
/Slj/setlinejoin load def
/Sc/setrgbcolor load def
/Sg/setgray load def
/Sd/setdash load def
/T/translate load def

% Additional control values for slurs: normally zero
/clx 0 def/cly 0 def/crx 0 def/cry 0 def

% For EPS files we must define *all* variables before defining the
% procedures (PRM p. 715) in case they are previously defined in the enclosing
% PostScript program.

%EPS /a 0 def /b 0 def /basefont 0 def /blen 0 def /c 0 def
%EPS /encname 0 def /g 0 def /gg 0 def /hascustom 0 def /hasstandard 0 def
%EPS /n 0 def /newenc 0 def /newfont0 0 def /newfont1 0 def /savename 0 def
%EPS /t 0 def /t1 0 def /t2 0 def /u 0 def /v 0 def /w 0 def
%EPS /x 0 def /x0 0 def /x1 0 def /x2 0 def
%EPS /y 0 def/y0 0 def /y1 0 def /y2 0 def /z 0 def


% -----------------------------------------------------------------------------
% Function to find a font and re-encode it if it has the standard and/or a
% custom encoding. On the stack we should have two names, for the two
% differently encoded versions of the font, followed by the font name. When the
% font is not re-encoded, the two fonts will end up the same.

% Save the font name, find the font, save it, check for standard encoding.

/inf{dup /savename exch def
findfont dup /basefont exch def
/Encoding get StandardEncoding eq
/hasstandard exch def

% Look for a custom encoding. We get the length of the name, make a string of
% that length + 4, put the name at the start of that string and add "EncU".
% Then test for the existence of that encoding.

savename length /blen exch def /encname blen 4 add string def
savename encname cvs pop encname blen (EncU) putinterval
userdict encname cvn known
/hascustom exch def

% If the font does not use standard encoding, nor is there a custom encoding
% for it, just bind the two names to the base font.

hasstandard hascustom or not
{
basefont def
basefont def
}

% The font has Standard Encoding and/or there is a custom encoding. In both
% cases we start by making two new font dictionaries of the same length as the
% original, into which we copy the original, omitting only the FIDs.

{
basefont dup dup maxlength dup dict/newfont0 exch def dict/newfont1 exch def
{1 index/FID eq{pop pop}{newfont0 3 1 roll put}ifelse}forall
{1 index/FID eq{pop pop}{newfont1 3 1 roll put}ifelse}forall

% If the font has Standard Encoding, replace it with PMW's default encoding.

hasstandard
{
newfont1 /Encoding UpperEncoding put
newfont0 /Encoding LowerEncoding put
}if

% If there is a custom encoding, set it for each font, then copy from the
% old encoding any values for which the custom encoding is unset. The variable
% encname already contains the font name with EncU appended.

hascustom
{
newfont1/Encoding get /oldenc exch def
userdict encname cvn get /newenc exch def
0 1 255 {dup newenc exch get /.notdef eq
{dup oldenc exch get newenc 3 1 roll put}{pop}ifelse
}for
newfont1 /Encoding newenc put

% Repeat for the lower encoding

encname blen 3 add (L) putinterval
newfont0/Encoding get /oldenc exch def
userdict encname cvn get /newenc exch def
0 1 255 {dup newenc exch get /.notdef eq
{dup oldenc exch get newenc 3 1 roll put}{pop}ifelse
}for
newfont0 /Encoding newenc put
}if

% Associate each new font with the relevant name.

newfont1 dup definefont def
newfont0 dup definefont def
}
ifelse
}bind def
% -----------------------------------------------------------------------------


% Font selection
/ss{scalefont setfont}bind def

% Transformed font selection
/sm{makefont setfont}bind def

% Reversed font selections
/ssr{scalefont [-1 0 0 1 0 0] makefont setfont}bind def
/smr{makefont [-1 0 0 1 0 0] makefont setfont}bind def

% Print deep bar line: char-height, ybot, char, x, ytop
/b{/y exch def/x exch def/w exch def/z exch def/v exch def
{x y Mt w show
y z gt{/y y v sub def y z lt{/y z def}if}
{exit}ifelse}loop}bind def

% Print brace: scale, x, ymid
/br{gsave translate dup 0.11 gt {0.11}{dup 2.0 div 0.055 add}ifelse
exch scale 2{0.0 0.0 Mt 100.0 20.0 -50.0 245.0 60.0 260.0
curveto -50.0 245.0 60.0 20.0 0.0 0.0
curveto fill 1.0 -1.0 scale}repeat grestore}bind def

% Print alternate brace: scale, x, ymid
/br2{gsave translate dup 0.11 gt {0.11}{dup 2.0 div 0.055 add}ifelse
exch scale 2{0.0 0.0 Mt 95.0 40.0 -43.0 218.0 37.0 256.0
curveto -59.0 219.0 66.0 34.0 0.0 0.0
curveto fill 1.0 -1.0 scale}repeat grestore}bind def

% Coordinate setup for slurs: x0 y0 x1 y1 "depth"
/cc{/u exch def/y1 exch def/x1 exch def/y0 exch def/x0 exch def
/w y1 y0 sub dup mul x1 x0 sub dup mul add sqrt 2 div def
/v w 2 mul 3 div dup 10 gt {pop 10} if def
x0 x1 add 2.0 div y0 y1 add 2.0 div translate
y1 y0 sub x1 x0 sub atan rotate}bind def

% Set up additional control for slurs: clx cly crx cry
/cA{/cry exch def/crx exch def/cly exch def/clx exch def}bind def

% Draw ordinary slur or tie in preset coordinate system
/cd{w neg 0.05 moveto v w sub clx add u cly add w v sub crx add u cry add
w 0.05 curveto w -0.05 lineto w v sub crx add u cry add 1 sub v w sub clx add
u cly add 1 sub w neg -0.05 curveto closepath fill}bind def

% Print tie or ordinary slur
/cv{gsave cc cd grestore}bind def

% Draw wiggly ordinary slur in preset coordinate system
/cwd{w neg 0.05 moveto v w sub clx add u cly add w v sub crx add cry u sub
w 0.05 curveto w -0.05 lineto w v sub crx add cry u sub 1 sub v w sub clx add
u cly add 1 sub w neg -0.05 curveto closepath fill}bind def

% Print wiggly ordinary slur
/cvw{gsave cc cwd grestore}bind def

% Print editorial marking on slur; trivial when the y control point movements
% are equal; very messy otherwise. On stack: length-adjust, wiggle value (1, -1)
/cem{dup 1 eq cly cry eq and{pop 0 u cly add 0.75 mul /t2 0 def}
{/x1 v w sub clx add def /x2 w v sub crx add def
/y1 u cly add def u mul cry add /y2 exch def

/t 0.5 def

% Put x value on stack; dx value in /t1
/a 2 w mul x1 x2 sub 3 mul add def
/b x2 2 x1 mul sub w sub 3 mul def
/c x1 w add 3 mul def
a t mul b add t mul c add t mul w sub
/t1 a 3 mul t mul b 2 mul add t mul c add def

% Put y value on stack; dy value in /t2
/a y1 y2 sub 3 mul def
/b 3 y2 mul 6 y1 mul sub def
/c 3 y1 mul def
a t mul b add t mul c add t mul
/t2 a 3 mul t mul b 2 mul add t mul c add def
}ifelse
translate t2 0 ne {t2 t1 atan rotate} if
0 2 moveto 4 add neg 0 exch rlineto 0.4 Slw stroke}bind def

% Print editorial slur
/cve{gsave cc cd 0.8 1 cem grestore}bind def

% Print wiggly editorial slur
/cvwe{gsave cc cwd 0.8 -1 cem grestore}bind def

% Print straight dashed line: x1 y1 x0 y0 width [dash1 dash2]
% Do some device-specific stuff on the width, as this is used
% for dotted bar lines, which must all look the same width.
/dl{gsave 0 Sd 0 dtransform exch floor exch idtransform pop
Slw Mt Lt stroke grestore}bind def

% Print system bracket: x, ytop, ybot
/k{/y1 exch def/y2 exch def/x exch def
currentfont mf
y2 y1 sub dup 16 gt {pop 16}if
dup 1 sub /y exch def
dup y2 exch sub /y2 exch def
16 div 10 mul ss
x y2 Mt
(\260) show
{/y2 y2 y sub def
y2 y1 le {exit}if x y2 Mt (B)show}loop
x y1 Mt (\261)show
setfont}bind def

% Print straight line: x1 y1 x0 y0 width
/l{Slw Mt Lt stroke}bind def

% Print sequence of straight lines: xn yn ... count x0 y0 width
/ll{Slw Mt 1 1 3 -1 roll{pop Lt}for stroke}bind def

% Print beam: z x1 y1 x0 y0
/m{/y0 exch def/x0 exch def/y1 exch def/x1 exch def/z exch def
x0 y0 Mt x1 y1 Lt x1 y1 z add Lt x0 y0 z add Lt fill}bind def

% Print string relative to current point: string x y
/rs{rmoveto show}bind def

% Print string: string x y
/s{moveto show}bind def

% Print string at current point: string
/sh{show}bind def

% Print string relative to current point, widening spaces: string w x y
/wrs{rmoveto 0 32 4 -1 roll widthshow}bind def

% Print string, widening spaces: string w x y
/ws{moveto 0 32 4 -1 roll widthshow}bind def

% Print string at current point, widening spaces: string w
/wsh{0 32 4 -1 roll widthshow}bind def

% Print a stave: x y w t g n
/ST{/n exch def/g exch def/t exch def/w exch def/y exch def/x exch def
1 1 n {pop x y transform round exch round exch itransform Mt
w 0 Rl y g add /y exch def}for t Slw S}bind def

% End of PostScript header for PMW