83 lines
3.0 KiB
Scheme
83 lines
3.0 KiB
Scheme
#lang scheme/unit
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(require (lib "string-constant.ss" "string-constants")
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(lib "mred.ss" "mred")
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(lib "external.ss" "browser")
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(lib "bug-report.ss" "help")
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(lib "buginfo.ss" "help" "private")
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(lib "framework.ss" "framework")
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(lib "class.ss")
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(lib "list.ss")
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(lib "search.ss" "help")
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"drsig.ss")
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(import [prefix drscheme:frame: drscheme:frame^]
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[prefix drscheme:language-configuration: drscheme:language-configuration/internal^])
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(export drscheme:help-desk^)
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(define (-add-help-desk-font-prefs b) '(add-help-desk-font-prefs b))
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;; : -> string
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(define (get-computer-language-info)
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(let* ([language/settings (preferences:get
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drscheme:language-configuration:settings-preferences-symbol)]
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[language (drscheme:language-configuration:language-settings-language
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language/settings)]
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[settings (drscheme:language-configuration:language-settings-settings
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language/settings)])
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(format
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"~s"
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(list
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(send language get-language-position)
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(send language marshall-settings settings)))))
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(set-bug-report-info! "Computer Language" get-computer-language-info)
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(define lang-message%
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(class canvas%
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(init-field button-release font)
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(define/override (on-event evt)
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(when (send evt button-up?)
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(button-release)))
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(field [msg ""])
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(define/public (set-msg l) (set! msg l) (on-paint))
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(inherit get-dc get-client-size)
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(define/override (on-paint)
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(let ([dc (get-dc)]
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[dots "..."])
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(let-values ([(tw th _1 _2) (send dc get-text-extent msg)]
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[(dw dh _3 _4) (send dc get-text-extent dots)]
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[(cw ch) (get-client-size)])
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(send dc set-brush (send the-brush-list find-or-create-brush (get-panel-background) 'panel))
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(send dc set-pen (send the-pen-list find-or-create-pen "black" 1 'transparent))
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(send dc set-font font)
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(send dc draw-rectangle 0 0 cw ch)
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(cond
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[(tw . <= . cw)
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(send dc draw-text msg 0 (- (/ ch 2) (/ th 2)))]
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[(cw . <= . dw) ;; just give up if there's not enough room to draw the dots
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(void)]
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[else
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(send dc set-clipping-rect 0 0 (- cw dw 2) ch)
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(send dc draw-text msg 0 (- (/ ch 2) (/ th 2)))
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(send dc set-clipping-region #f)
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(send dc draw-text dots (- cw dw) (- (/ ch 2) (/ th 2)))]))))
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(super-new)))
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(define (goto-manual-link a b) (error 'goto-maual-link "~s ~s" a b))
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(define (goto-hd-location b) (error 'goto-hd-location "~s" b))
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(define (goto-help manual link) (goto-manual-link manual link))
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(define (goto-tour) (goto-hd-location 'hd-tour))
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(define (goto-release-notes) (goto-hd-location 'release-notes))
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(define (goto-plt-license) (goto-hd-location 'plt-license))
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(define (get-docs)
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;(error 'help-desk.ss "get-docs")
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'())
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(define help-desk
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(case-lambda
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[() (send-main-page)]
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[(key) (perform-search (list key))]))
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