--- /dev/null
+John Benediktsson
--- /dev/null
+! Copyright (C) 2011-2012 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license
+
+USING: accessors assocs colors.constants combinators fonts fry
+io io.styles kernel math math.order pdf.text pdf.wrap sequences
+ui.text ;
+
+IN: pdf.canvas
+
+TUPLE: margin left right top bottom ;
+
+C: <margin> margin
+
+TUPLE: canvas x y width height margin col-width font stream
+foreground background page-color inset line-height metrics ;
+
+: <canvas> ( -- canvas )
+ canvas new
+ 0 >>x
+ 0 >>y
+ 612 >>width
+ 792 >>height
+ 54 54 54 54 <margin> >>margin
+ 612 >>col-width
+ sans-serif-font 12 >>size >>font
+ SBUF" " >>stream
+ 0 >>line-height
+ { 0 0 } >>inset
+ dup font>> font-metrics >>metrics ;
+
+: set-style ( canvas style -- canvas )
+ {
+ [
+ font-name swap at "sans-serif" or {
+ { "sans-serif" [ "Helvetica" ] }
+ { "serif" [ "Times" ] }
+ { "monospace" [ "Courier" ] }
+ [ " is unsupported" append throw ]
+ } case [ dup font>> ] dip >>name drop
+ ]
+ [
+ font-size swap at 12 or
+ [ dup font>> ] dip >>size drop
+ ]
+ [
+ font-style swap at [ dup font>> ] dip {
+ { bold [ t f ] }
+ { italic [ f t ] }
+ { bold-italic [ t t ] }
+ [ drop f f ]
+ } case [ >>bold? ] [ >>italic? ] bi* drop
+ ]
+ [ foreground swap at COLOR: black or >>foreground ]
+ [ background swap at f or >>background ]
+ [ page-color swap at f or >>page-color ]
+ [ inset swap at { 0 0 } or >>inset ]
+ } cleave
+ dup font>> font-metrics
+ [ >>metrics ] [ height>> '[ _ max ] change-line-height ] bi ;
+
+! introduce positioning of elements versus canvas?
+
+: margin-x ( canvas -- n )
+ margin>> [ left>> ] [ right>> ] bi + ;
+
+: margin-y ( canvas -- n )
+ margin>> [ top>> ] [ bottom>> ] bi + ;
+
+: (width) ( canvas -- n )
+ [ width>> ] [ margin>> [ left>> ] [ right>> ] bi + ] bi - ;
+
+: width ( canvas -- n )
+ [ (width) ] [ col-width>> ] bi min ;
+
+: height ( canvas -- n )
+ [ height>> ] [ margin>> [ top>> ] [ bottom>> ] bi + ] bi - ;
+
+: x ( canvas -- n )
+ [ margin>> left>> ] [ x>> ] bi + ;
+
+: y ( canvas -- n )
+ [ height>> ] [ margin>> top>> ] [ y>> ] tri + - ;
+
+: inc-x ( canvas n -- )
+ '[ _ + ] change-x drop ;
+
+: inc-y ( canvas n -- )
+ '[ _ + ] change-y drop ;
+
+: line-height ( canvas -- n )
+ [ line-height>> ] [ inset>> first 2 * ] bi + ;
+
+: line-break ( canvas -- )
+ [ line-height>> ] keep [ + ] change-y 0 >>x
+ dup metrics>> height>> >>line-height drop ;
+
+: ?line-break ( canvas -- )
+ dup x>> 0 > [ line-break ] [ drop ] if ;
+
+: ?break ( canvas -- )
+ dup x>> 0 > [ ?line-break ] [
+ [ 7 + ] change-y 0 >>x drop
+ ] if ;
+
+: inc-lines ( canvas n -- )
+ [ 0 >>x ] dip [ dup line-break ] times drop ;
+
+: avail-width ( canvas -- n )
+ [ width ] [ x>> ] bi - 0 max ;
+
+: avail-height ( canvas -- n )
+ [ height ] [ y>> ] bi - 0 max ;
+
+: avail-lines ( canvas -- n )
+ [ avail-height ] [ line-height>> ] bi /i ; ! FIXME: 1 +
+
+: text-fits? ( canvas string -- ? )
+ [ dup font>> ] [ word-split1 drop ] bi*
+ text-width swap avail-width <= ;
+
+: draw-page-color ( canvas -- ) ! FIXME:
+ dup page-color>> [
+ "0.0 G" print
+ foreground-color
+ [ 0 0 ] dip [ width>> ] [ height>> ] bi
+ rectangle fill
+ ] [ drop ] if* ;
+
+: draw-background ( canvas line -- )
+ over background>> [
+ "0.0 G" print
+ foreground-color
+ [ drop [ x ] [ y ] bi ]
+ [ [ font>> ] [ text-dim first2 neg ] bi* ] 2bi
+ rectangle fill
+ ] [ 2drop ] if* ;
+
+: draw-text1 ( canvas line -- canvas )
+ [ draw-background ] [
+ text-start
+ over font>> text-size
+ over foreground>> [ foreground-color ] when*
+ over [ x ] [ y ] [ metrics>> ascent>> - ] tri text-location
+ over dup font>> pick text-width inc-x
+ text-write
+ text-end
+ ] 2bi ;
+
+: draw-text ( canvas lines -- )
+ [ drop ] [
+ unclip-last
+ [ [ draw-text1 dup line-break ] each ]
+ [ [ draw-text1 ] when* ] bi* drop
+ ] if-empty ;
+
+: draw-line ( canvas width -- )
+ swap [ x ] [ y ] [ line-height>> 2 / - ] tri
+ [ line-move ] [ [ + ] [ line-line ] bi* ] 2bi
+ stroke ;
--- /dev/null
+! Copyright (C) 2011-2012 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license
+
+USING: accessors assocs calendar combinators environment fonts
+formatting fry io io.streams.string kernel literals locals make
+math math.order math.ranges pdf.canvas pdf.values pdf.wrap
+sequences sorting splitting ui.text xml.entities ;
+FROM: assocs => change-at ;
+FROM: sequences => change-nth ;
+FROM: pdf.canvas => draw-text ;
+
+IN: pdf.layout
+
+! TODO: inset, image
+! Insets:
+! before:
+! y += inset-height
+! margin-left, margin-right += inset-width
+! after:
+! y += inset-height
+! margin-left, margin-right -= inset-width
+
+! TUPLE: pre < p
+! C: <pre> pre
+
+! TUPLE: spacer width height ;
+! C: <spacer> spacer
+
+! TUPLE: image < span ;
+! C: <image> image
+
+! Outlines (add to catalog):
+! /Outlines 3 0 R
+! /PageMode /UseOutlines
+! Table of Contents
+! Thumbnails
+! Annotations
+! Images
+
+! FIXME: spacing oddities if run multiple times
+! FIXME: make sure highlights text "in order"
+! FIXME: don't modify layout objects in pdf-render
+! FIXME: make sure unicode "works"
+! FIXME: only set style differences to reduce size?
+! FIXME: gadget. to take a "screenshot" into a pdf?
+! FIXME: compress each pdf object to reduce file size?
+
+
+GENERIC: pdf-render ( canvas obj -- remain/f )
+
+M: f pdf-render 2drop f ;
+
+GENERIC: pdf-width ( canvas obj -- n )
+
+<PRIVATE
+
+: (pdf-layout) ( page obj -- page )
+ [ dup ] [
+ dupd [ pdf-render ] with-string-writer
+ '[ _ append ] [ change-stream ] curry dip
+ [ [ , <canvas> ] when ] keep
+ ] while drop ;
+
+PRIVATE>
+
+: pdf-layout ( seq -- pages )
+ [ <canvas> ] dip [
+ [ (pdf-layout) ] each
+ dup stream>> empty? [ drop ] [ , ] if
+ ] { } make ;
+
+
+TUPLE: div items style ;
+
+C: <div> div
+
+M: div pdf-render
+ [ style>> set-style ] keep
+ swap '[ _ pdf-render drop ] each f ;
+
+M: div pdf-width
+ [ style>> set-style ] keep
+ items>> [ dupd pdf-width ] map nip supremum ;
+
+
+<PRIVATE
+
+: convert-string ( str -- str' )
+ {
+ { CHAR: “ "\"" }
+ { CHAR: ” "\"" }
+ } escape-string-by [ 256 < ] filter ;
+
+PRIVATE>
+
+
+TUPLE: p string style ;
+
+: <p> ( string style -- p )
+ [ convert-string ] dip p boa ;
+
+M: p pdf-render
+ [ style>> set-style ] keep
+ [
+ over ?line-break
+ over [ font>> ] [ avail-width ] bi visual-wrap
+ over avail-lines short cut
+ [ draw-text ] [ "" concat-as ] bi*
+ ] change-string dup string>> empty? [ drop f ] when ;
+
+M: p pdf-width
+ [ style>> set-style ] keep
+ [ font>> ] [ string>> ] bi* string-lines
+ [ dupd text-width ] map nip supremum ;
+
+
+TUPLE: text string style ;
+
+: <text> ( string style -- text )
+ [ convert-string ] dip text boa ;
+
+M: text pdf-render
+ [ style>> set-style ] keep
+ [
+ over x>> 0 > [
+ 2dup text-fits? [
+ over [ font>> ] [ avail-width ] bi visual-wrap
+ unclip [ "" concat-as ] dip
+ ] [ over line-break f ] if
+ ] [ f ] if
+ [
+ [ { } ] [ over [ font>> ] [ width ] bi visual-wrap ]
+ if-empty
+ ] dip [ prefix ] when*
+ over avail-lines short cut
+ [ draw-text ] [ "" concat-as ] bi*
+ ] change-string dup string>> empty? [ drop f ] when ;
+
+M: text pdf-width
+ [ style>> set-style ] keep
+ [ font>> ] [ string>> ] bi* string-lines
+ [ dupd text-width ] map nip supremum ;
+
+
+TUPLE: hr width ;
+
+C: <hr> hr
+
+M: hr pdf-render
+ [ f set-style ] dip
+ [
+ [ dup 0 > pick avail-lines 0 > and ] [
+ over avail-width over min [ - ] keep [
+ [ over ] dip [ draw-line ] [ inc-x ] 2bi
+ ] unless-zero dup 0 > [ over line-break ] when
+ ] while
+ ] change-width nip dup width>> 0 > [ drop f ] unless ;
+
+M: hr pdf-width
+ nip width>> ;
+
+
+TUPLE: br ;
+
+C: <br> br
+
+M: br pdf-render
+ [ f set-style ] dip
+ over avail-lines 0 > [ drop ?break f ] [ nip ] if ;
+
+M: br pdf-width
+ 2drop 0 ;
+
+
+TUPLE: pb used? ;
+
+: <pb> ( -- pb ) f pb boa ;
+
+M: pb pdf-render
+ dup used?>> [ f >>used? drop f ] [ t >>used? ] if nip ;
+
+M: pb pdf-width
+ 2drop 0 ;
+
+
+
+CONSTANT: table-cell-padding 5
+
+TUPLE: table-cell contents width ;
+
+: <table-cell> ( contents -- table-cell )
+ f table-cell boa ;
+
+M: table-cell pdf-render
+ {
+ [ width>> >>col-width 0 >>x drop ]
+ [
+ [ [ dupd pdf-render ] map nip ] change-contents
+ dup contents>> [ ] any? [ drop f ] unless
+ ]
+ [
+ width>> table-cell-padding +
+ swap margin>> [ + ] change-left drop
+ ]
+ } 2cleave ;
+
+TUPLE: table-row cells ;
+
+C: <table-row> table-row
+
+! save y before rendering each cell
+! set y to max y after all renders
+
+M: table-row pdf-render
+ {
+ [ drop ?line-break ]
+ [
+ [let
+ over y>> :> start-y
+ over y>> :> max-y!
+ [
+ [
+ [ start-y >>y ] dip
+ dupd pdf-render
+ over y>> max-y max max-y!
+ ] map swap max-y >>y drop
+ ] change-cells
+
+ dup cells>> [ ] any? [ drop f ] unless
+ ]
+ ]
+ [ drop margin>> 54 >>left drop ]
+ [
+ drop dup width>> >>col-width
+ [ ?line-break ] [ table-cell-padding inc-y ] bi
+ ]
+ } 2cleave ;
+
+: col-widths ( canvas cells -- widths )
+ [
+ [
+ contents>> [ 0 ] [
+ [ [ dupd pdf-width ] [ 0 ] if* ] map supremum
+ ] if-empty
+ ] [ 0 ] if*
+ ] map nip ;
+
+: change-last ( seq quot -- )
+ [ drop length 1 - ] [ change-nth ] 2bi ; inline
+
+:: max-col-widths ( canvas rows -- widths )
+ H{ } clone :> widths
+ rows [
+ cells>> canvas swap col-widths
+ [ widths [ 0 or max ] change-at ] each-index
+ ] each widths >alist sort-keys values
+
+ ! make last cell larger
+ dup sum 400 swap - 0 max [ + ] curry dupd change-last
+
+ ! size down each column
+ dup sum dup 400 > [ 400 swap / [ * ] curry map ] [ drop ] if ;
+
+: set-col-widths ( canvas rows -- )
+ [ max-col-widths ] keep [
+ dupd cells>> [
+ [ swap >>width drop ] [ drop ] if*
+ ] 2each
+ ] each drop ;
+
+TUPLE: table rows widths? ;
+
+: <table> ( rows -- table )
+ f table boa ;
+
+M: table pdf-render
+ {
+ [
+ dup widths?>> [ 2drop ] [
+ t >>widths? rows>> set-col-widths
+ ] if
+ ]
+ [
+ [
+ dup rows>> empty? [ t ] [
+ [ rows>> first dupd pdf-render ] keep swap
+ ] if
+ ] [ [ rest ] change-rows ] until nip
+ dup rows>> [ drop f ] [ drop ] if-empty
+ ]
+ } 2cleave ;
+
+M: table pdf-width
+ 2drop 400 ; ! FIXME: hardcoded max-width
+
+
+: pdf-object ( str n -- str' )
+ "%d 0 obj\n" sprintf "\nendobj" surround ;
+
+: pdf-stream ( str -- str' )
+ [ length 1 + "<<\n/Length %d\n>>" sprintf ]
+ [ "\nstream\n" "\nendstream" surround ] bi append ;
+
+: pdf-catalog ( -- str )
+ {
+ "<<"
+ "/Type /Catalog"
+ "/Pages 15 0 R"
+ ">>"
+ } "\n" join ;
+
+: pdf-pages ( n -- str )
+ [
+ "<<" ,
+ "/Type /Pages" ,
+ "/MediaBox [ 0 0 612 792 ]" ,
+ [ "/Count %d" sprintf , ]
+ [
+ 16 swap 2 range boa
+ [ "%d 0 R " sprintf ] map concat
+ "/Kids [ " "]" surround ,
+ ] bi
+ ">>" ,
+ ] { } make "\n" join ;
+
+: pdf-page ( n -- page )
+ [
+ "<<" ,
+ "/Type /Page" ,
+ "/Parent 15 0 R" ,
+ 1 + "/Contents %d 0 R" sprintf ,
+ "/Resources << /Font <<" ,
+ "/F1 3 0 R /F2 4 0 R /F3 5 0 R" ,
+ "/F4 6 0 R /F5 7 0 R /F6 8 0 R" ,
+ "/F7 9 0 R /F8 10 0 R /F9 11 0 R" ,
+ "/F10 12 0 R /F11 13 0 R /F12 14 0 R" ,
+ ">> >>" ,
+ ">>" ,
+ ] { } make "\n" join ;
+
+: pdf-trailer ( objects -- str )
+ [
+ "xref" ,
+ dup length 1 + "0 %d" sprintf ,
+ "0000000000 65535 f" ,
+ 9 over [
+ over "%010X 00000 n" sprintf , length 1 + +
+ ] each drop
+ "trailer" ,
+ "<<" ,
+ dup length 1 + "/Size %d" sprintf ,
+ "/Info 1 0 R" ,
+ "/Root 2 0 R" ,
+ ">>" ,
+ "startxref" ,
+ [ length 1 + ] map-sum 9 + "%d" sprintf ,
+ "%%EOF" ,
+ ] { } make "\n" join ;
+
+TUPLE: pdf-info title timestamp producer author creator ;
+
+: <pdf-info> ( -- pdf-info )
+ pdf-info new
+ now >>timestamp
+ "Factor" >>producer
+ "USER" os-env "unknown" or >>author
+ "created with Factor" >>creator ;
+
+M: pdf-info pdf-value
+ [
+ "<<" print [
+ [ timestamp>> [ "/CreationDate " write pdf-write nl ] when* ]
+ [ producer>> [ "/Producer " write pdf-write nl ] when* ]
+ [ author>> [ "/Author " write pdf-write nl ] when* ]
+ [ title>> [ "/Title " write pdf-write nl ] when* ]
+ [ creator>> [ "/Creator " write pdf-write nl ] when* ]
+ ] cleave ">>" print
+ ] with-string-writer ;
+
+
+TUPLE: pdf-ref object revision ;
+
+C: <pdf-ref> pdf-ref
+
+M: pdf-ref pdf-value
+ [ object>> ] [ revision>> ] bi "%d %d R" sprintf ;
+
+
+TUPLE: pdf info pages fonts ;
+
+: <pdf> ( -- pdf )
+ pdf new
+ <pdf-info> >>info
+ V{ } clone >>pages
+ V{ } clone >>fonts ;
+
+:: pages>objects ( pdf -- objects )
+ [
+ pdf info>> pdf-value ,
+ pdf-catalog ,
+ { $ sans-serif-font $ serif-font $ monospace-font } {
+ [ [ f >>bold? f >>italic? pdf-value , ] each ]
+ [ [ t >>bold? f >>italic? pdf-value , ] each ]
+ [ [ f >>bold? t >>italic? pdf-value , ] each ]
+ [ [ t >>bold? t >>italic? pdf-value , ] each ]
+ } cleave
+ pdf pages>> length pdf-pages ,
+ pdf pages>>
+ dup length 16 swap 2 range boa zip
+ [ pdf-page , , ] assoc-each
+ ] { } make
+ dup length [1,b] zip [ first2 pdf-object ] map ;
+
+: objects>pdf ( objects -- str )
+ [ "\n" join "\n" append "%PDF-1.4\n" ]
+ [ pdf-trailer ] bi surround ;
+
+! Rename to pdf>string, have it take a <pdf> object?
+
+: pdf>string ( seq -- pdf )
+ <pdf> swap pdf-layout [
+ stream>> pdf-stream over pages>> push
+ ] each pages>objects objects>pdf ;
+
+: write-pdf ( seq -- )
+ pdf>string write ;
--- /dev/null
+! Copyright (C) 2011-2012 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license
+
+USING: help.markup help.syntax strings ;
+
+IN: pdf
+
+HELP: text-to-pdf
+{ $values { "str" string } { "pdf" string } }
+{ $description "Converts " { $snippet "str" } " into PDF instructions." } ;
+
+HELP: file-to-pdf
+{ $values { "path" string } { "encoding" "an encoding" } }
+{ $description "Converts " { $snippet "path" } " into a PDF, saving to " { $snippet "path.pdf" } "." } ;
--- /dev/null
+! Copyright (C) 2010 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license
+
+USING: pdf tools.test ;
+
+IN: pdf.tests
+
--- /dev/null
+! Copyright (C) 2011-2012 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license
+
+USING: io.files io.styles kernel pdf.layout sequences splitting ;
+
+IN: pdf
+
+: text-to-pdf ( str -- pdf )
+ string-lines [
+ H{ { font-name "monospace" } { font-size 10 } } <p>
+ ] map pdf>string ;
+
+: file-to-pdf ( path encoding -- )
+ [ file-contents text-to-pdf ]
+ [ [ ".pdf" append ] dip set-file-contents ] 2bi ;
--- /dev/null
+! Copyright (C) 2011-2012 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license
+
+USING: accessors arrays assocs destructors fry io io.styles
+kernel pdf.layout sequences splitting strings ;
+
+IN: pdf.streams
+
+<PRIVATE
+
+! FIXME: what about "proper" tab support?
+
+: string>texts ( string style -- seq )
+ [ string-lines ] dip '[ _ <text> 1array ] map
+ <br> 1array join ;
+
+PRIVATE>
+
+
+TUPLE: pdf-writer style data ;
+
+: new-pdf-writer ( class -- pdf-writer )
+ new H{ } >>style V{ } clone >>data ;
+
+: <pdf-writer> ( -- pdf-writer )
+ pdf-writer new-pdf-writer ;
+
+: with-pdf-writer ( quot -- pdf )
+ <pdf-writer> [ swap with-output-stream* ] keep data>> ; inline
+
+TUPLE: pdf-sub-stream < pdf-writer parent ;
+
+: new-pdf-sub-stream ( style stream class -- stream )
+ new-pdf-writer
+ swap >>parent
+ swap >>style
+ dup parent>> style>> '[ _ swap assoc-union ] change-style ;
+
+TUPLE: pdf-block-stream < pdf-sub-stream ;
+
+M: pdf-block-stream dispose
+ [ data>> ] [ parent>> ] bi
+ [ data>> push-all ] [ stream-nl ] bi ;
+
+TUPLE: pdf-span-stream < pdf-sub-stream ;
+
+M: pdf-span-stream dispose
+ [ data>> ] [ parent>> data>> ] bi push-all ;
+
+
+
+! Stream protocol
+
+M: pdf-writer stream-flush drop ;
+
+M: pdf-writer stream-write1
+ dup style>> '[ 1string _ <text> ] [ data>> ] bi* push ;
+
+M: pdf-writer stream-write
+ dup style>> '[ _ string>texts ] [ data>> ] bi* push-all ;
+
+M: pdf-writer stream-format
+ swap [ dup style>> ] dip assoc-union
+ '[ _ string>texts ] [ data>> ] bi* push-all ;
+
+M: pdf-writer stream-nl
+ <br> swap data>> push ; ! FIXME: <br> needs style?
+
+M: pdf-writer make-span-stream
+ pdf-span-stream new-pdf-sub-stream ;
+
+M: pdf-writer make-block-stream
+ pdf-block-stream new-pdf-sub-stream ;
+
+M: pdf-writer make-cell-stream
+ pdf-sub-stream new-pdf-sub-stream ;
+
+! FIXME: real table cells
+M: pdf-writer stream-write-table ! FIXME: needs style?
+ nip swap [
+ [ data>> <table-cell> ] map <table-row>
+ ] map <table> swap data>> push ;
+
+M: pdf-writer dispose drop ;
+
--- /dev/null
+PDF implementation of formatted output stream protocol
--- /dev/null
+Creating PDF files
--- /dev/null
+! Copyright (C) 2011-2012 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license
+
+USING: accessors combinators formatting io kernel math
+pdf.values sequences ;
+
+IN: pdf.text
+
+: comment ( string -- ) "% " write print ;
+
+: foreground-color ( color -- ) pdf-write " rg" print ;
+
+: background-color ( color -- ) pdf-write " RG" print ;
+
+
+! text
+
+: text-start ( -- ) "BT" print ;
+
+: text-end ( -- ) "ET" print ;
+
+: text-location ( x y -- ) "1 0 0 1 %f %f Tm\n" printf ;
+
+: text-leading ( n -- ) "%d TL\n" printf ;
+
+: text-rise ( n -- ) "%d Ts\n" printf ;
+
+: text-size ( font -- )
+ [
+ [
+ name>> {
+ { "Helvetica" [ 1 ] }
+ { "Times" [ 2 ] }
+ { "Courier" [ 3 ] }
+ [ " is unsupported" append throw ]
+ } case
+ ]
+ [
+ {
+ { [ dup [ bold?>> ] [ italic?>> ] bi and ] [ 9 ] }
+ { [ dup bold?>> ] [ 3 ] }
+ { [ dup italic?>> ] [ 6 ] }
+ [ 0 ]
+ } cond nip +
+ ] bi
+ ] [ size>> ] bi "/F%d %d Tf\n" printf ;
+
+: text-write ( string -- ) pdf-write " Tj" print ;
+
+: text-nl ( -- ) "T*" print ;
+
+: text-print ( string -- ) pdf-write " '" print ;
+
+
+
+! graphics
+
+: line-width ( n -- ) "%d w\n" printf ;
+
+: line-dashed ( on off -- ) "[ %d %d ] 0 d\n" printf ;
+
+: line-solid ( -- ) "[] 0 d" print ;
+
+: line-move ( x y -- ) "%f %f m\n" printf ;
+
+: line-line ( x y -- ) "%f %f l\n" printf ;
+
+: gray ( percent -- ) "%.f g\n" printf ;
+
+: rectangle ( x y width height -- ) "%d %d %d %d re\n" printf ;
+
+: stroke ( -- ) "S" print ;
+
+: fill ( -- ) "f" print ;
+
+: B ( -- ) "B" print ;
+
+: b ( -- ) "b" print ;
+
+: c ( -- ) "300 400 400 400 400 300 c" print ; ! FIXME:
+
+
+
+
--- /dev/null
+! Copyright (C) 2010 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license
+
+USING: pdf.units tools.test ;
+
+IN: pdf.units.tests
+
+[ 0 ] [ "0" string>points ] unit-test
+[ 1 ] [ "1" string>points ] unit-test
+[ 1.5 ] [ "1.5" string>points ] unit-test
+
+[ 12 ] [ "12pt" string>points ] unit-test
+
+[ 72.0 ] [ "1in" string>points ] unit-test
+[ 108.0 ] [ "1.5in" string>points ] unit-test
+
--- /dev/null
+! Copyright (C) 2011-2012 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license
+
+USING: ascii combinators kernel math math.parser sequences ;
+
+IN: pdf.units
+
+: inch ( n -- n' ) 72.0 * ;
+
+: cm ( n -- n' ) inch 2.54 / ;
+
+: mm ( n -- n' ) cm 0.1 * ;
+
+: pica ( n -- n' ) 12.0 * ;
+
+: string>points ( str -- n )
+ dup [ digit? ] find-last drop 1 + cut
+ [ string>number ] dip {
+ { "cm" [ cm ] }
+ { "in" [ inch ] }
+ { "pt" [ ] }
+ { "" [ ] }
+ { "mm" [ mm ] }
+ { "pica" [ pica ] }
+ [ throw ]
+ } case ;
--- /dev/null
+! Copyright (C) 2011-2012 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license
+
+USING: accessors arrays assocs calendar colors colors.gray
+combinators combinators.short-circuit fonts formatting
+hashtables io kernel make math math.parser sequences strings
+xml.entities ;
+
+IN: pdf.values
+
+<PRIVATE
+
+: escape-string ( str -- str' )
+ H{
+ { 0x08 "\\b" }
+ { 0x0c "\\f" }
+ { CHAR: \n "\\n" }
+ { CHAR: \r "\\r" }
+ { CHAR: \t "\\t" }
+ { CHAR: \\ "\\\\" }
+ { CHAR: ( "\\(" }
+ { CHAR: ) "\\)" }
+ } escape-string-by ;
+
+PRIVATE>
+
+GENERIC: pdf-value ( obj -- str )
+
+M: number pdf-value number>string ;
+
+M: t pdf-value drop "true" ;
+
+M: f pdf-value drop "false" ;
+
+M: color pdf-value
+ [ red>> ] [ green>> ] [ blue>> ] tri
+ "%f %f %f" sprintf ;
+
+M: gray pdf-value
+ gray>> dup dup "%f %f %f" sprintf ;
+
+M: font pdf-value
+ [
+ "<<" ,
+ "/Type /Font" ,
+ "/Subtype /Type1" ,
+ {
+ [
+ name>> {
+ { "sans-serif" [ "/Helvetica" ] }
+ { "serif" [ "/Times" ] }
+ { "monospace" [ "/Courier" ] }
+ [ " is unsupported" append throw ]
+ } case
+ ]
+ [ [ bold?>> ] [ italic?>> ] bi or [ "-" append ] when ]
+ [ bold?>> [ "Bold" append ] when ]
+ [ italic?>> [ "Italic" append ] when ]
+ } cleave
+ "/BaseFont " prepend ,
+ ">>" ,
+ ] { } make "\n" join ;
+
+M: timestamp pdf-value
+ "%Y%m%d%H%M%S" strftime "D:" prepend ;
+
+M: string pdf-value
+ escape-string "(" ")" surround ;
+
+M: sequence pdf-value
+ [ "[" % [ pdf-value % " " % ] each "]" % ] "" make ;
+
+M: hashtable pdf-value
+ [
+ "<<\n" %
+ [ swap % " " % pdf-value % "\n" % ] assoc-each
+ ">>" %
+ ] "" make ;
+
+: pdf-write ( obj -- )
+ pdf-value write ;
--- /dev/null
+! Copyright (C) 2011-2012 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license
+
+USING: kernel fry make math sequences ui.text unicode.categories
+wrap ;
+
+IN: pdf.wrap
+
+<PRIVATE
+
+: word-index ( string -- n/f )
+ dup [ blank? ] find drop [
+ 1 + swap [ blank? not ] find-from drop
+ ] [ drop f ] if* ;
+
+PRIVATE>
+
+: word-split1 ( string -- before after/f )
+ dup word-index [ cut ] [ f ] if* ;
+
+<PRIVATE
+
+: word-split, ( string -- )
+ [ word-split1 [ , ] [ dup empty? not ] bi* ] loop drop ;
+
+PRIVATE>
+
+: word-split ( string -- seq )
+ [ word-split, ] { } make ;
+
+<PRIVATE
+
+: string>elements ( string font -- elements )
+ [ word-split ] dip '[
+ dup word-split1 "" or
+ [ _ swap text-width ] bi@
+ <element>
+ ] map ;
+
+PRIVATE>
+
+: visual-wrap ( line font line-width -- lines )
+ [ string>elements ] dip dup wrap [ concat ] map ;
+
projects / factor.git / commitdiff