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"
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COPYRIGHT (c) 1988 by Claus Gittinger
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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PrinterStream subclass:#PostscriptPrinterStream
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instanceVariableNames:'xPos yPos lineBuffer colNr lineNr fFamily fStyle'
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classVariableNames:'Prolog Trailer PageProlog PageTrailer FontHeight FontWidth LeftX
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TopY LinesPerPage Italic Bold Normal Courier Times Helvetica'
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poolDictionaries:''
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category:'Streams-External'
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!
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!PostscriptPrinterStream class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 1988 by Claus Gittinger
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71
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All Rights Reserved
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31
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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!
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documentation
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"
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This class provides simple text output to postscript printers;
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to use it, evaluate
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Smalltalk at:#Printer put:PostscriptPrinterStream
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(usually in -rc file).
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It does not support graphics and other fancy features of Postscript, but
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provides a compatible interface to line-printing (see other subclasses of
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PrinterStream).
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"
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!
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version
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^ '$Header: /cvs/stx/stx/libbasic2/PostscriptPrinterStream.st,v 1.15 1996-01-27 18:33:23 cg Exp $'
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! !
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!PostscriptPrinterStream class methodsFor:'initialization'!
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fontNames
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^ #('/Helvetica-Oblique'
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'/Helvetica-Bold'
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'/Helvetica'
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'/Times-Italic'
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'/Times-Bold'
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'/Times'
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'/Courier-Oblique'
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'/Courier-Bold'
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'/Courier' )
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!
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initialize
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|tmpString t fontNr|
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Normal isNil ifTrue:[
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Normal := 0.
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Bold := 1.
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Italic := 2.
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Courier := 0.
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Times := 3.
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Helvetica := 6.
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LinesPerPage := 66.
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FontHeight := 200.
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FontWidth := 120.
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LeftX := 900.
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TopY := 14900.
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tmpString :=
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'%!!PS-Adobe-1.0
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%%Creator: Smalltalk
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%%DocumentFonts: Courier-Oblique Courier-Bold Courier Times-Italic Times-Bold Times
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save/SmalltalkJob exch def
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/StartSmalltalkDoc{$smalltalk begin}def
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/$smalltalk 50 dict def $smalltalk begin
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/EndSmalltalkDoc{end}def
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/S/show load def
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/X{exch 0 rmoveto S}def
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/Y{exch 0 exch rmoveto S}def
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/B{3 1 roll moveto S}def
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/F{$fd exch get setfont}def
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/StartPage{/svpg save def .05 dup scale}def
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/EndPage{svpg restore showpage}def
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/DoPreFeed{/statusdict where{pop
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statusdict/prefeed known{statusdict exch/prefeed exch put 0}if}if pop}def
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/Landscape{90 rotate 0 -15840 translate}def
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/SetUpFonts
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{dup/$fd exch array def{findfont exch scalefont $fd 3 1 roll put}repeat}def
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/InitGaudy{/TwoColumn exch def /BarLength exch def
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/ftD /Times-Bold findfont 12 UP scalefont def
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/ftF /Times-Roman findfont 14 UP scalefont def
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/ftP /Helvetica-Bold findfont 30 UP scalefont def}def
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/U{1440 mul}def
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/UP{U 72 div}def
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/LB{/pts exch UP def /charcolor exch def /boxcolor exch def /font exch def
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/label exch def /dy exch def /dx exch def /lly exch def /llx exch def
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gsave boxcolor setgray
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llx lly moveto dx 0 rlineto 0 dy rlineto dx neg 0 rlineto closepath fill
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/lines label length def
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/yp lly dy add dy lines pts mul sub 2 div sub pts .85 mul sub def
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font setfont charcolor setgray
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label {dup stringwidth pop 2 div llx dx 2 div add exch sub yp moveto show
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/yp yp pts sub def}forall grestore}def
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/Gaudy{/Page exch def /Date exch def /File exch def /Comment exch def
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.25 U 10.2 U BarLength .1 sub U .25 U [File] ftF .97 0 14 LB
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.25 U 10.45 U BarLength .1 sub U .25 U [Comment] ftF 1 0 14 LB
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.25 U 10.2 U 1 U .5 U Date ftD .7 0 12 LB
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BarLength .75 sub U 10.2 U 1 U .5 U [Page] ftP .7 1 30 LB
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TwoColumn{BarLength 2 div .19 add U 10.2 U moveto 0 -10 U rlineto stroke}if
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}def
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end
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StartSmalltalkDoc % end fixed prolog
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'.
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fontNr := 8.
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t := ''.
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self fontNames do:[:aName |
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t := t , (fontNr printString) , ' '
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, (FontHeight printString) , ' '
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, aName , (Character nl) asString.
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fontNr := fontNr - 1
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].
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tmpString := tmpString , t.
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tmpString := tmpString , '9 SetUpFonts
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'.
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Prolog := tmpString.
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PageProlog :=
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'StartPage
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'.
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PageTrailer :=
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'EndPage
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'.
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Trailer :=
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'EndSmalltalkDoc
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SmalltalkJob restore
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'
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]
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! !
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!PostscriptPrinterStream methodsFor:'access writing'!
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bold
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self flushLine.
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fStyle := Bold.
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self setFont
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!
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courier
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self flushLine.
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fFamily := Courier.
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self setFont
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!
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cr
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"send line termination"
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self flushLine.
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xPos := LeftX.
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colNr := 0.
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yPos := yPos - FontHeight.
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lineNr := lineNr + 1.
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lineNr > LinesPerPage ifTrue:[
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self nextPage
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]
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!
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helvetica
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self flushLine.
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fFamily := Helvetica.
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self setFont
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!
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italic
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self flushLine.
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fStyle := Italic.
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self setFont
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!
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nextPut:aCharacter
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(aCharacter == Character cr) ifTrue:[
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^ self cr
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].
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(aCharacter == $( ) ifTrue:[
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lineBuffer := lineBuffer , '\(' .
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^ self
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].
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(aCharacter == $) ) ifTrue:[
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lineBuffer := lineBuffer , '\)' .
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^ self
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].
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(aCharacter == $\ ) ifTrue:[
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lineBuffer := lineBuffer , '\\' .
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^ self
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].
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(aCharacter == Character tab ) ifTrue:[
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self flushLine.
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colNr := ((colNr + 8) // 8) * 8.
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xPos := LeftX + (colNr * FontWidth).
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^ self
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].
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lineBuffer := lineBuffer copyWith:aCharacter
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!
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normal
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self flushLine.
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fStyle := Normal.
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self setFont
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!
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times
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self flushLine.
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fFamily := Times.
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self setFont
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! !
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!PostscriptPrinterStream methodsFor:'open/close'!
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endPrint
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self endPage.
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super nextPutAll:Trailer.
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super endPrint
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!
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startPrint
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Prolog isNil ifTrue:[
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self class initialize
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].
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fFamily := Courier.
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fStyle := Normal.
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super writingTo:PrintCommand.
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super nextPutAllUntranslated:Prolog.
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self startPage
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! !
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!PostscriptPrinterStream methodsFor:'private'!
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endPage
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self flushLine.
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super nextPutAllUntranslated:PageTrailer
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!
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flushLine
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(lineBuffer size > 0) ifTrue:[
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super nextPutAllUntranslated:(xPos printString ).
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super nextPutAllUntranslated:' '.
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super nextPutAllUntranslated:(yPos printString).
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super nextPutAllUntranslated:'('.
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super nextPutAllUntranslated:lineBuffer.
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super nextPutAllUntranslated:')B'.
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super nextPutUntranslated:(Character cr).
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xPos := xPos + (FontWidth * lineBuffer size).
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colNr := colNr + lineBuffer size
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].
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lineBuffer := ''
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!
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nextPage
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self endPage.
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self startPage
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!
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setFont
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|fontNumber|
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fontNumber := fFamily + fStyle.
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super nextPutAllUntranslated:fontNumber printString.
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super nextPutAllUntranslated:' F'.
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super nextPutUntranslated:(Character cr)
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!
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startPage
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super nextPutAllUntranslated:PageProlog.
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self setFont.
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yPos := TopY.
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xPos := LeftX.
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lineBuffer := ''.
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lineNr := 1.
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colNr := 0
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! !
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299 |
PostscriptPrinterStream initialize!
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