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improved memory limit GUI a little bit

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svn: r6033
This commit is contained in:
Robby Findler 2007-04-24 13:53:21 +00:00
parent b3d09d34b7
commit a1e53c9283
1 changed files with 90 additions and 46 deletions
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136
collects/drscheme/private/unit.ss
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@ -1634,58 +1634,15 @@ module browser threading seems wrong.
(define/override (edit-menu:between-find-and-preferences edit-menu)
(super edit-menu:between-find-and-preferences edit-menu)
(add-modes-submenu edit-menu)
(when (with-handlers ([exn:fail:unsupported? (λ (x) #f)])
(let ([c (make-custodian)])
(custodian-limit-memory
c
100
c))
#t)
(set! limit-memory-menu-item
(new menu-item%
[label ""]
[parent edit-menu]
[callback
(λ (item b)
(let ([current-limit (send interactions-text get-custodian-limit)])
(cond
[current-limit
(preferences:set 'drscheme:limit-memory #f)
(send interactions-text set-custodian-limit #f)]
[else
(let ([num-str
(get-text-from-user
(string-constant drscheme)
(string-append
"Please choose a limit, in megabytes\n"
"The limit will take effect on the next Run of the program.")
this
(format "~a" (* 1/2 1024)))])
(when num-str
(let ([num (string->number num-str)])
(cond
[(and num
(integer? num)
(num . >= . 100))
(preferences:set 'drscheme:limit-memory (* 1024 1024 num))
(send interactions-text set-custodian-limit (* 1024 1024 num))]
[else
(message-box (string-constant drscheme)
"Expected a positive integer (as a series of digits without commas) that is greater than 100"
this)]))))])
(update-limit-memory-menu-item-label
(send interactions-text get-custodian-limit))))])))
(update-limit-memory-menu-item-label (preferences:get 'drscheme:limit-memory)))
(add-modes-submenu edit-menu))
(define/private (update-limit-memory-menu-item-label limit)
(when limit-memory-menu-item
(send limit-memory-menu-item set-label
(if limit
(format "Disable memory limit (currently ~a megabytes)"
(format "Disable Memory Limit (Currently ~a Megabytes)"
(floor (/ limit 1024 1024)))
"Limit memory..."))))
"Limit Memory..."))))
@ -2881,6 +2838,35 @@ module browser threading seems wrong.
(λ (_1 _2) (send interactions-text kill-evaluation))
#\k
(string-constant kill-menu-item-help-string))
(when (with-handlers ([exn:fail:unsupported? (λ (x) #f)])
(let ([c (make-custodian)])
(custodian-limit-memory
c
100
c))
#t)
(set! limit-memory-menu-item
(new menu-item%
[label ""]
[parent scheme-menu]
[callback
(λ (item b)
(let ([current-limit (send interactions-text get-custodian-limit)])
(cond
[current-limit
(preferences:set 'drscheme:limit-memory #f)
(send interactions-text set-custodian-limit #f)]
[else
(let ([num (get-mbytes this)])
(when num
(preferences:set 'drscheme:limit-memory
(* 1024 1024 num))
(send interactions-text set-custodian-limit
(* 1024 1024 num))))])
(update-limit-memory-menu-item-label
(send interactions-text get-custodian-limit))))]))
(update-limit-memory-menu-item-label (preferences:get 'drscheme:limit-memory)))
(new menu:can-restore-menu-item%
(label (string-constant clear-error-highlight-menu-item-label))
(parent scheme-menu)
@ -3291,6 +3277,64 @@ module browser threading seems wrong.
(set! newest-frame this)
(send definitions-canvas focus)))
;; get-mbytes : top-level-window -> (union #f integer[>=100])
(define (get-mbytes parent)
(define d (new dialog%
[label (string-constant drscheme)]
[parent parent]))
(define msg1 (new message%
[parent d]
[label "Please choose a limit on the amount of memory, in megabytes."]))
(define msg2 (new message%
[parent d]
[label "The limit will take effect the next time the program is Run."]))
(define tb
(new text-field%
[label #f]
[parent d]
[init-value "512"]
[callback
(λ (tf e)
(let ([ed (send tf get-editor)])
(cond
[(is-valid-number? ed)
(background clear-sd ed)
(send ok-button enable #t)]
[else
(background yellow-sd ed)
(send ok-button enable #f)])))]))
(define bp (new horizontal-panel% [parent d]))
(define-values (ok-button cancel-button)
(gui-utils:ok/cancel-buttons
bp
(λ (a b)
(set! result (string->number (send (send tb get-editor) get-text)))
(send d show #f))
(λ (a b) (send d show #f))))
(define result #f)
(define clear-sd (make-object style-delta%))
(define yellow-sd (make-object style-delta%))
(define (is-valid-number? txt)
(let* ([n (string->number (send txt get-text))])
(and n
(integer? n)
(100 . <= . n))))
(define (background sd txt) (send txt change-style sd 0 (send txt last-position)))
(send clear-sd set-delta-background "white")
(send yellow-sd set-delta-background "yellow")
(send d set-alignment 'left 'center)
(send bp set-alignment 'right 'center)
(send tb focus)
(let ([e (send tb get-editor)])
(send e set-position 0 (send e last-position)))
(send d show #t)
result)
(define (limit-length l n)
(let loop ([l l]
[n n])