suzanne.soy/racket
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

updated the insert large letter dialog

Browse Source 
svn: r8078
This commit is contained in:
Robby Findler 2007-12-20 02:46:43 +00:00
parent 6f45daa5f4
commit 937a656d68
2 changed files with 184 additions and 57 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

175
collects/drscheme/private/insert-large-letters.ss Normal file
View File

@ -0,0 +1,175 @@
#lang scheme/base
(require mred/mred
scheme/class
string-constants/string-constant
framework/framework)
(provide insert-large-letters)
(define (insert-large-letters comment-prefix comment-character edit parent)
(let ([str (make-large-letters-dialog comment-prefix comment-character #f)])
(when (and str
(not (equal? str "")))
(render-large-letters comment-prefix comment-character (get-chosen-font) str edit)
(void))))
(preferences:set-default 'drscheme:large-letters-font #f (λ (x) (or (and (pair? x)
(string? (car x))
(number? (cdr x))
(integer? (cdr x))
(<= 1 (cdr x) 255))
(not x))))
(define (get-default-font)
(send (send (editor:get-standard-style-list)
find-named-style
"Standard")
get-font))
(define (get-chosen-font)
(let ([pref-val (preferences:get 'drscheme:large-letters-font)])
(cond
[pref-val
(let ([candidate (send the-font-list find-or-create-font (cdr pref-val) (car pref-val) 'default 'normal 'normal)])
(if (equal? (send candidate get-face) (car pref-val))
candidate
(get-default-font)))]
[else
(get-default-font)])))
(define columns-string "~a columns")
;; make-large-letters-dialog : string char top-level-window<%> -> void
(define (make-large-letters-dialog comment-prefix comment-character parent)
(define dlg (new dialog%
[parent parent]
[width 700]
[label (string-constant large-semicolon-letters)]))
(define text-field (new text-field%
[parent dlg]
[label (string-constant text-to-insert)]
[callback (λ (x y) (update-txt (send text-field get-value)))]))
(define info-bar (new horizontal-panel%
[parent dlg]
[stretchable-height #f]))
(define font-choice (new choice%
[label (string-constant fonts)]
[parent info-bar]
[choices (get-face-list)]
[callback
(λ (x y)
(let ([old (preferences:get 'drscheme:large-letters-font)])
(preferences:set 'drscheme:large-letters-font
(cons (send font-choice get-string-selection)
(if old
(cdr old)
(send (get-default-font) get-point-size))))
(update-txt (send text-field get-value))))]))
(define count (new message% [label (format columns-string 1000)] [parent info-bar]))
(define pane1 (new horizontal-pane% (parent info-bar)))
(define dark-msg (new bitmap-message% [parent info-bar]))
(define pane2 (new horizontal-pane% (parent info-bar)))
(define txt (new scheme:text%))
(define ec (new editor-canvas% [parent dlg] [editor txt]))
(define button-panel (new horizontal-panel%
[parent dlg]
[stretchable-height #f]
[alignment '(right center)]))
(define ok? #f)
(define-values (ok cancel)
(gui-utils:ok/cancel-buttons button-panel
(λ (x y) (set! ok? #t) (send dlg show #f))
(λ (x y) (send dlg show #f))))
(define (update-txt str)
(send txt begin-edit-sequence)
(send txt lock #f)
(send txt delete 0 (send txt last-position))
(let ([bm (render-large-letters comment-prefix comment-character (get-chosen-font) str txt)])
(send ec set-line-count (+ 1 (send txt last-paragraph)))
(send txt lock #t)
(send txt end-edit-sequence)
(send count set-label (format columns-string (get-max-line-width txt)))
(send dark-msg set-bm bm)))
(send font-choice set-string-selection (send (get-chosen-font) get-face))
(send txt auto-wrap #f)
(update-txt " ")
(send text-field focus)
(send dlg show #t)
(and ok? (send text-field get-value)))
(define (get-max-line-width txt)
(let loop ([i (+ (send txt last-paragraph) 1)]
[m 0])
(cond
[(zero? i) m]
[else (loop (- i 1)
(max m (- (send txt paragraph-end-position (- i 1))
(send txt paragraph-start-position (- i 1)))))])))
(define bitmap-message%
(class canvas%
(inherit min-width min-height get-dc)
(define bm #f)
(define/override (on-paint)
(when bm
(let ([dc (get-dc)])
(send dc draw-bitmap bm 0 0))))
(define/public (set-bm b)
(set! bm b)
(min-width (send bm get-width))
(min-height (send bm get-height)))
(super-new (stretchable-width #f)
(stretchable-height #f))))
(define (render-large-letters comment-prefix comment-character the-font str edit)
(define bdc (make-object bitmap-dc% (make-object bitmap% 1 1 #t)))
(define-values (tw raw-th td ta) (send bdc get-text-extent str the-font))
(define th (let-values ([(_1 h _2 _3) (send bdc get-text-extent "X" the-font)])
(max raw-th h)))
(define tmp-color (make-object color%))
(define (get-char x y)
(send bdc get-pixel x y tmp-color)
(let ([red (send tmp-color red)])
(if (= red 0)
comment-character
#\space)))
(define bitmap
(make-object bitmap%
(max 1 (inexact->exact tw))
(inexact->exact th)
#t))
(define (fetch-line y)
(let loop ([x (send bitmap get-width)]
[chars null])
(cond
[(zero? x) (apply string chars)]
[else (loop (- x 1) (cons (get-char (- x 1) y) chars))])))
(send bdc set-bitmap bitmap)
(send bdc clear)
(send bdc set-font the-font)
(send bdc draw-text str 0 0)
(send edit begin-edit-sequence)
(let ([start (send edit get-start-position)]
[end (send edit get-end-position)])
(send edit delete start end)
(send edit insert "\n" start start)
(let loop ([y (send bitmap get-height)])
(unless (zero? y)
(send edit insert (fetch-line (- y 1)) start start)
(send edit insert comment-prefix start start)
(send edit insert "\n" start start)
(loop (- y 1)))))
(send edit end-edit-sequence)
(send bdc set-bitmap #f)
bitmap)
;(make-large-letters-dialog ";" #\; #f)

66
collects/drscheme/private/unit.ss
View File

@ -26,6 +26,7 @@ module browser threading seems wrong.
(lib "include-bitmap.ss" "mrlib")
"drsig.ss"
"auto-language.ss"
"insert-large-letters.ss"
(prefix-in drscheme:arrow: "../arrow.ss")
@ -3070,63 +3071,14 @@ module browser threading seems wrong.
(λ ()
(let ([edit (get-edit-target-object)])
(when edit
(let ([str (get-text-from-user (string-constant large-semicolon-letters)
(string-constant text-to-insert)
this)])
(when (and str
(not (equal? str "")))
(let ()
(define language-settings (send definitions-text get-next-settings))
(define-values (comment-prefix comment-character)
(if language-settings
(send (drscheme:language-configuration:language-settings-language
language-settings)
get-comment-character)
(values ";" #\;)))
(define bdc (make-object bitmap-dc% (make-object bitmap% 1 1 #t)))
(define the-font (send (send (editor:get-standard-style-list)
find-named-style
"Standard")
get-font))
(define-values (tw th td ta) (send bdc get-text-extent str the-font))
(define tmp-color (make-object color%))
(define (get-char x y)
(send bdc get-pixel x y tmp-color)
(let ([red (send tmp-color red)])
(if (= red 0)
comment-character
#\space)))
(define bitmap
(make-object bitmap%
(inexact->exact tw)
(inexact->exact th)
#t))
(define (fetch-line y)
(let loop ([x (send bitmap get-width)]
[chars null])
(cond
[(zero? x) (apply string chars)]
[else (loop (- x 1) (cons (get-char (- x 1) y) chars))])))
(send bdc set-bitmap bitmap)
(send bdc clear)
(send bdc set-font the-font)
(send bdc draw-text str 0 0)
(send edit begin-edit-sequence)
(let ([start (send edit get-start-position)]
[end (send edit get-end-position)])
(send edit delete start end)
(send edit insert "\n" start start)
(let loop ([y (send bitmap get-height)])
(unless (zero? y)
(send edit insert (fetch-line (- y 1)) start start)
(send edit insert comment-prefix start start)
(send edit insert "\n" start start)
(loop (- y 1)))))
(send edit end-edit-sequence)))))))]
(let ([language-settings (send definitions-text get-next-settings)])
(let-values ([(comment-prefix comment-character)
(if language-settings
(send (drscheme:language-configuration:language-settings-language
language-settings)
get-comment-character)
(values ";" #\;))])
(insert-large-letters comment-prefix comment-character edit this))))))]
[c% (get-menu-item%)])
(frame:add-snip-menu-items