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95 lines
2.6 KiB
Racket
95 lines
2.6 KiB
Racket
#lang at-exp br
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(require pitfall/render)
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(render-args
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;; catalog object
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(co-io 1 0 (co-catalog #:pages (co-io-ref 2 0)))
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;; pages
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(co-io 2 0 (co-pages #:kids (list (co-io-ref 3 0))
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#:count 1))
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;; page
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(co-io 3 0 (co-page #:parent (co-io-ref 2 0)
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#:mediabox '(0 0 400 400)
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#:resources (co-io-ref 4 0)
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#:contents (co-io-ref 5 0)
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; the value of annots must be an array
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#:annots (co-array (list (co-io-ref 7 0)))
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))
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#;#:annots (co-io-ref 7 0)
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;; resources
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(co-io 4 0
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(make-co-dict
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'ProcSet (co-array '(PDF Text))
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'Font (make-co-dict 'F1 (co-io-ref 6 0))))
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;; contents
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(co-io 5 0
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(make-co-stream
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#"
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BT
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/F1 48 Tf
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(Hello World 1-1!) Tj
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ET
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"))
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;; font
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(let ([last-char 255])
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(co-io 6 0
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(make-co-dict
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'Type 'Font
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'Subtype 'Type1
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'Name 'F1
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'BaseFont 'Helvetica
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'FontDescriptor (co-io-ref 9 0)
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'FirstChar 0
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'LastChar last-char
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;; widths can only hold 256 apparently?
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'Widths (report (co-array
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(for/list ([i (in-range (add1 last-char))])
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;; 29 is magic number: this is offset betwee
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;; ascii value and character index
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;; so A (ascii 65) lives at index 36
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(define ascii-index-offset 29)
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(if (<= ascii-index-offset i)
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(measure-char-idx "fira.otf" (- i ascii-index-offset))
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200))))
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'Encoding 'MacRomanEncoding)))
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(co-io 7 0
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(make-co-dict 'Type 'Annot
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'Subtype 'Link
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'Rect (co-array '(100 100 150 125))
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'A (co-io-ref 8 0)))
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(co-io 8 0
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(make-co-dict 'Type 'Action
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'S 'URI
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'URI (co-string "http://practicaltypography.com")))
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(co-io 9 0
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(make-co-dict
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'Type 'FontDescriptor
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'FontName 'FiraSansOTMedium
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'FontFile3 (co-io-ref 10 0)
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'Flags 4
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'FontBBox (co-array '(-177 -269 1123 866))
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'MissingWidth 255
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'StemV 105
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'StemH 45
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'CapHeight 660
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'XHeight 394
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'Ascent 720
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'Descent -270
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'Leading 83
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'MaxWidth 1212
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'AvgWidth 478
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'ItalicAngle 0))
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(co-io 10 0 (make-font-co-stream "fira.otf")))
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