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#lang debug racket
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(require "struct.rkt"
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"string.rkt"
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"debug.rkt"
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"param.rkt"
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"attrs.rkt"
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quad/quad
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quad/position
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pitfall)
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(provide (all-defined-out))
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(define q:draw (make-quad #:type draw-quad))
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(define (draw-line q doc)
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(define x0 (quad-ref q :x 0))
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(define y0 (quad-ref q :y 0))
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(move-to doc x0 y0)
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(line-to doc (quad-ref q :x2 x0) (quad-ref q :y2 y0))
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(line-width doc (quad-ref q :stroke 1))
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(stroke doc (quad-ref q :color "black")))
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(define (draw-text q doc)
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(move-to doc 0 0)
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(q:string-draw q doc
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#:origin (pt (quad-ref q :x 0) (quad-ref q :y 0))
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#:text (quad-ref q :text)))
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(define (convert-draw-quad q)
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(cond
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[(memq (quad-tag q) '(line text))
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(quad-copy draw-quad q:draw
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[tag (quad-tag q)]
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[attrs (quad-attrs q)]
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[size (pt (quad-ref q :width 0) (quad-ref q :height 0))]
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[draw (let ([draw-proc (match (quad-tag q)
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[(== 'line eq?) draw-line]
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[(== 'text eq?) draw-text])])
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(λ (q doc)
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(save doc)
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(apply translate doc (if (equal? (quad-ref q :position) "absolute")
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(list 0 0)
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(quad-origin q)))
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(draw-proc q doc)
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(restore doc)))])]
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[else #false]))
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