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65 lines
2.7 KiB
Racket
65 lines
2.7 KiB
Racket
#lang debug racket
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(require pitfall
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quad/position
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quad/quad
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"attrs.rkt")
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(provide (all-defined-out))
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(define-for-syntax debug-mode #false)
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(define-syntax (go stx)
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(datum->syntax stx
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(cond
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[debug-mode
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'(begin
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(define draw-debug? (make-parameter #true))
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(define draw-debug-line? (make-parameter #true))
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(define draw-debug-block? (make-parameter #false))
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(define draw-debug-string? (make-parameter #true))
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(define draw-debug-image? (make-parameter #false))
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(define draw-debug-draw? (make-parameter #false))
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(define debug-page-width (make-parameter 400))
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(define debug-page-height (make-parameter 400))
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(define debug-x-margin (make-parameter 50))
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(define debug-y-margin (make-parameter 50))
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(define debug-column-count (make-parameter 1))
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(define debug-column-gap (make-parameter 36)))]
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[else
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'(begin
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(define draw-debug? (make-parameter #false))
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(define draw-debug-line? (make-parameter #true))
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(define draw-debug-block? (make-parameter #true))
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(define draw-debug-string? (make-parameter #true))
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(define draw-debug-image? (make-parameter #true))
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(define draw-debug-draw? (make-parameter #true))
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(define debug-page-width (make-parameter #f))
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(define debug-page-height (make-parameter #f))
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(define debug-x-margin (make-parameter #f))
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(define debug-y-margin (make-parameter #f))
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(define debug-column-count (make-parameter #f))
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(define debug-column-gap (make-parameter #f)))])))
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(go)
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(define (draw-debug q doc [fill-color "#f99"] [stroke-color "#fcc"] . _)
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(define stroke-width 0.5)
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(when (or (draw-debug?) (quad-ref q :draw-debug))
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(save doc)
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;; draw layout box
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(line-width doc stroke-width)
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; subtracting stroke-width keeps adjacent boxes from overlapping
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(save doc)
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(apply rect doc (append (pt+ (quad-origin q)) (map (λ (x) (- x stroke-width)) (size q))))
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(clip doc)
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(define pt (to-point q))
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(circle doc (pt-x pt) (pt-y pt) (+ 3 stroke-width))
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(fill doc fill-color)
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(restore doc)
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(apply rect doc (append (pt+ (quad-origin q)) (map (λ (x) (- x stroke-width)) (size q))))
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(stroke doc stroke-color)
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(restore doc)))
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