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fix `record-dc%' problem with regions

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Closes PR 12655

original commit: 4b36e708a352f92eda50b2dd108d569e2e391620
This commit is contained in:
Matthew Flatt 2012-03-28 06:23:28 -06:00
parent 2450c4ad0f
commit d4643b300a
1 changed files with 15 additions and 3 deletions
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18
collects/tests/gracket/draw.rkt
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@ -1200,7 +1200,18 @@
(when (send r get-dc)
(unless (eq? (send r is-empty?) (eq? clip 'empty))
(show-error 'draw-text "region `is-empty?' mismatch"))))))
(define (mutate-region)
(when (and (not clock-clip?)
(not (eq? clip 'none)))
;; To be uncooperative, mutate the clipping region:
(define r (send dc get-clipping-region))
(define r2 (make-object region% (send r get-dc)))
(send r2 union r)
(send dc set-clipping-region #f)
(send r set-rectangle 0 0 10 10)
(send dc set-clipping-region r2)))
;; check default pen/brush:
(send dc draw-rectangle 0 0 5 5)
(send dc draw-line 0 0 20 6)
@ -1208,6 +1219,8 @@
(send dc set-font (make-object font% 10 'default))
(draw-series dc pen0s pen0t pen0x "0 x 0" 5 0 0 #f)
(mutate-region)
(draw-series dc pen1s pen1t pen1x "1 x 1" 70 0 1 #f)
@ -1256,8 +1269,7 @@
(list (* xscale DRAW-WIDTH) (* yscale DRAW-HEIGHT))
(list (* 2 DRAW-WIDTH) (* 2 DRAW-HEIGHT))))))
(send dc set-clipping-region #f)
(send dc set-clipping-region #f)
(send dc end-page)
(when (and kind multi-page?)