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%!
% $Id: pst-text.pro 891 2018-12-29 19:42:20Z herbert $
%
% PostScript header file pst-text.pro
% Version 1.02, 2018-12-28 (hv)
% For distribution, see pstricks.tex.
%
/tx@TextPathDict 45 dict def
tx@TextPathDict begin
%
% Syntax: <dist> PathPosition -
% Function: Searches for position of currentpath distance <dist> from
% beginning. Sets (X,Y)=position, and Angle=tangent.
/PathPosition
{ /targetdist exch def
/pathdist 0 def
/continue true def
/X { newx } def /Y { newy } def /Angle 0 def
gsave
flattenpath
{ movetoproc } { linetoproc } { } { firstx firsty linetoproc }
/pathforall load stopped { pop pop pop pop /X 0 def /Y 0 def } if
grestore
} def
%
/movetoproc { continue { @movetoproc } { pop pop } ifelse } def
%
/@movetoproc
{ /newy exch def /newx exch def
/firstx newx def /firsty newy def
} def
%
/linetoproc { continue { @linetoproc } { pop pop } ifelse } def
%
/@linetoproc {
/oldx newx def /oldy newy def
/newy exch def /newx exch def
/dx newx oldx sub def
/dy newy oldy sub def
/dist dx dup mul dy dup mul add sqrt def
/pathdist pathdist dist add def
pathdist targetdist ge
{ pathdist targetdist sub dist div dup
dy mul neg newy add /Y exch def
dx mul neg newx add /X exch def
/Angle dy dx atan def
/continue false def
} if
} def
%
/TextPathShow {
/String exch def
/CharCount 0 def
% hv begin 2005-11-29 1.00
% String length
% { String CharCount 1 getinterval ShowChar
% /CharCount CharCount 1 add def
/CharSize 1 def
currentfont /FontType get 0 eq
{ currentfont /FMapType get dup 2 eq exch dup 5 eq exch 9 eq or or
{ /CharSize 2 def} if
} if
String length CharSize idiv
{ String CharCount CharSize getinterval ShowChar
/CharCount CharCount CharSize add def
% hv end 2005-11-29 1.00
} repeat
} def
%
% Syntax: <pathlength> <position> InitTextPath -
/InitTextPath
{ gsave
currentpoint /Y exch def /X exch def
exch X Hoffset sub sub mul
Voffset Hoffset sub add
neg X add /Hoffset exch def
/Voffset Y def
grestore
} def
%
/Transform
{ PathPosition
dup
Angle cos mul Y add exch
Angle sin mul neg X add exch
translate
Angle rotate
} def
%
/ShowChar {
/Char exch def
gsave
Char end stringwidth
tx@TextPathDict begin
2 div /Sy exch def 2 div /Sx exch def
%
%%% MV 10-09-99 00:36
/sc?currentpoint where {pop sc?currentpoint} {currentpoint} ifelse
% currentpoint
Voffset sub Sy add exch
Hoffset sub Sx add
Transform
Sx neg Sy neg moveto
Char end tx@TextPathSavedShow
tx@TextPathDict begin
grestore
Sx 2 mul Sy 2 mul rmoveto
} def
%
/warp {
1 index
1.4 mul
cos 2 add
mul
} def
/warpmove{
2 index {
newpath
} if
warp moveto
pop false
} def
/warpline { warp lineto } def
/warpcurve {
6 2 roll warp
6 2 roll warp
6 2 roll warp
curveto
} def
/warpit {
true
{ warpmove } { warpline } { warpcurve } { closepath } pathforall
pop
} def
%
/circle {
exch neg
% .5 mul
90 add
dup cos 2 index mul
3 1 roll
sin mul
} bind def
/circmove{
2 index { newpath } if
circle moveto
pop false
} bind def
/circline { circle lineto } bind def
/circcurve {
6 2 roll circle
6 2 roll circle
6 2 roll circle
curveto
} bind def
/circit { true { circmove } { circline } { circcurve } { closepath } pathforall pop } bind def
%
end
% END pst-text.pro
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