%!PS-Adobe-3.0 EPSF-3.0
%%Creator: Tk Canvas Widget
%%For: Alexander Belopolsky
%%Title: Window .4315905424
%%CreationDate: Tue Nov 9 12:54:06 2010
%%XBoundingBox: -172 -52 785 845
%%BoundingBox: 290 290 520 520
%%Pages: 1
%%DocumentData: Clean7Bit
%%Orientation: Portrait
%%EndComments

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

50 dict begin
% This is a standard prolog for Postscript generated by Tk's canvas
% widget.
% RCS: @(#) $Id$

% The definitions below just define all of the variables used in
% any of the procedures here. This is needed for obscure reasons
% explained on p. 716 of the Postscript manual (Section H.2.7,
% "Initializing Variables," in the section on Encapsulated Postscript).

/baseline 0 def
/stipimage 0 def
/height 0 def
/justify 0 def
/lineLength 0 def
/spacing 0 def
/stipple 0 def
/strings 0 def
/xoffset 0 def
/yoffset 0 def
/tmpstip null def


/cstringshow {
 {
	dup type /stringtype eq
	{ show } { glyphshow }
	ifelse
 }
 forall
} bind def



/cstringwidth {
 0 exch 0 exch
 {
	dup type /stringtype eq
	{ stringwidth } { 
	 currentfont /Encoding get exch 1 exch put (001円) stringwidth 
 }
	ifelse 
	exch 3 1 roll add 3 1 roll add exch
 }
 forall
} bind def

% font ISOEncode font
% This procedure changes the encoding of a font from the default
% Postscript encoding to current system encoding. It's typically invoked just
% before invoking "setfont". The body of this procedure comes from
% Section 5.6.1 of the Postscript book.

/ISOEncode {
 dup length dict begin
	{1 index /FID ne {def} {pop pop} ifelse} forall
	/Encoding CurrentEncoding def
	currentdict
 end

 % I'm not sure why it's necessary to use "definefont" on this new
 % font, but it seems to be important; just use the name "Temporary"
 % for the font.

 /Temporary exch definefont
} bind def

% StrokeClip
%
% This procedure converts the current path into a clip area under
% the assumption of stroking. It's a bit tricky because some Postscript
% interpreters get errors during strokepath for dashed lines. If
% this happens then turn off dashes and try again.

/StrokeClip {
 {strokepath} stopped {
	(This Postscript printer gets limitcheck overflows when) =
	(stippling dashed lines; lines will be printed solid instead.) =
	[] 0 setdash strokepath} if
 clip
} bind def

% desiredSize EvenPixels closestSize
%
% The procedure below is used for stippling. Given the optimal size
% of a dot in a stipple pattern in the current user coordinate system,
% compute the closest size that is an exact multiple of the device's
% pixel size. This allows stipple patterns to be displayed without
% aliasing effects.

/EvenPixels {
 % Compute exact number of device pixels per stipple dot.
 dup 0 matrix currentmatrix dtransform
 dup mul exch dup mul add sqrt

 % Round to an integer, make sure the number is at least 1, and compute
 % user coord distance corresponding to this.
 dup round dup 1 lt {pop 1} if
 exch div mul
} bind def

% width height string StippleFill --
%
% Given a path already set up and a clipping region generated from
% it, this procedure will fill the clipping region with a stipple
% pattern. "String" contains a proper image description of the
% stipple pattern and "width" and "height" give its dimensions. Each
% stipple dot is assumed to be about one unit across in the current
% user coordinate system. This procedure trashes the graphics state.

/StippleFill {
 % The following code is needed to work around a NeWSprint bug.

 /tmpstip 1 index def

 % Change the scaling so that one user unit in user coordinates
 % corresponds to the size of one stipple dot.
 1 EvenPixels dup scale

 % Compute the bounding box occupied by the path (which is now
 % the clipping region), and round the lower coordinates down
 % to the nearest starting point for the stipple pattern. Be
 % careful about negative numbers, since the rounding works
 % differently on them.

 pathbbox
 4 2 roll
 5 index div dup 0 lt {1 sub} if cvi 5 index mul 4 1 roll
 6 index div dup 0 lt {1 sub} if cvi 6 index mul 3 2 roll

 % Stack now: width height string y1 y2 x1 x2
 % Below is a doubly-nested for loop to iterate across this area
 % in units of the stipple pattern size, going up columns then
 % across rows, blasting out a stipple-pattern-sized rectangle at
 % each position

 6 index exch {
	2 index 5 index 3 index {
	 % Stack now: width height string y1 y2 x y

	 gsave
	 1 index exch translate
	 5 index 5 index true matrix tmpstip imagemask
	 grestore
	} for
	pop
 } for
 pop pop pop pop pop
} bind def

% -- AdjustColor --
% Given a color value already set for output by the caller, adjusts
% that value to a grayscale or mono value if requested by the CL
% variable.

/AdjustColor {
 CL 2 lt {
	currentgray
	CL 0 eq {
	 .5 lt {0} {1} ifelse
	} if
	setgray
 } if
} bind def

% x y strings spacing xoffset yoffset justify stipple DrawText --
% This procedure does all of the real work of drawing text. The
% color and font must already have been set by the caller, and the
% following arguments must be on the stack:
%
% x, y -	Coordinates at which to draw text.
% strings -	An array of strings, one for each line of the text item,
%		in order from top to bottom.
% spacing -	Spacing between lines.
% xoffset -	Horizontal offset for text bbox relative to x and y: 0 for
%		nw/w/sw anchor, -0.5 for n/center/s, and -1.0 for ne/e/se.
% yoffset -	Vertical offset for text bbox relative to x and y: 0 for
%		nw/n/ne anchor, +0.5 for w/center/e, and +1.0 for sw/s/se.
% justify -	0 for left justification, 0.5 for center, 1 for right justify.
% stipple -	Boolean value indicating whether or not text is to be
%		drawn in stippled fashion. If text is stippled,
%		procedure StippleText must have been defined to call
%		StippleFill in the right way.
%
% Also, when this procedure is invoked, the color and font must already
% have been set for the text.

/DrawText {
 /stipple exch def
 /justify exch def
 /yoffset exch def
 /xoffset exch def
 /spacing exch def
 /strings exch def

 % First scan through all of the text to find the widest line.

 /lineLength 0 def
 strings {
	cstringwidth pop
	dup lineLength gt {/lineLength exch def} {pop} ifelse
	newpath
 } forall

 % Compute the baseline offset and the actual font height.

 0 0 moveto (TXygqPZ) false charpath
 pathbbox dup /baseline exch def
 exch pop exch sub /height exch def pop
 newpath

 % Translate coordinates first so that the origin is at the upper-left
 % corner of the text's bounding box. Remember that x and y for
 % positioning are still on the stack.

 translate
 lineLength xoffset mul
 strings length 1 sub spacing mul height add yoffset mul translate

 % Now use the baseline and justification information to translate so
 % that the origin is at the baseline and positioning point for the
 % first line of text.

 justify lineLength mul baseline neg translate

 % Iterate over each of the lines to output it. For each line,
 % compute its width again so it can be properly justified, then
 % display it.

 strings {
	dup cstringwidth pop
	justify neg mul 0 moveto
	stipple {
	 
 
	 % The text is stippled, so turn it into a path and print
	 % by calling StippledText, which in turn calls StippleFill.
	 % Unfortunately, many Postscript interpreters will get
	 % overflow errors if we try to do the whole string at
	 % once, so do it a character at a time.

	 gsave
	 /char (X) def
	 {
		dup type /stringtype eq {
		 % This segment is a string.
		 {
		 char 0 3 -1 roll put
		 currentpoint
		 gsave
		 char true charpath clip StippleText
		 grestore
		 char stringwidth translate
		 moveto
		 } forall
		} {
		 % This segment is glyph name
		 % Temporary override
		 currentfont /Encoding get exch 1 exch put
		 currentpoint
		 gsave (001円) true charpath clip StippleText
		 grestore
	 (001円) stringwidth translate
		 moveto
		} ifelse
	 } forall
	 grestore 
	} {cstringshow} ifelse
	0 spacing neg translate
 } forall
} bind def

%%EndProlog
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/CL 2 def
%%EndSetup

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%%Trailer
end
%%EOF