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unstable: more docs, a few changes to gui libs

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svn: r16887

original commit: 50bfe1b8be5f548f3fca0ff99839b20fdc046315
This commit is contained in:
Ryan Culpepper 2009-11-19 08:29:57 +00:00
parent 52a7d2c20c
commit 64e35b664e
3 changed files with 98 additions and 133 deletions
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131
collects/unstable/gui/notify.ss
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@ -1,134 +1,17 @@
#lang scheme/base
(require (for-syntax scheme/base unstable/syntax)
scheme/list
;; owner: ryanc
(require scheme/list
scheme/class
scheme/gui)
(provide field/notify
notify-methods
connect-to-pref
connect-to-pref/readonly
notify-box%
notify-box/pref
notify-box/pref/readonly
scheme/gui
"../private/notify.ss")
(provide (all-from-out "../private/notify.ss")
menu-option/notify-box
menu-group/notify-box
check-box/notify-box
choice/notify-box)
(define-for-syntax (mk-init name)
(format-id name "init-~a" (syntax-e name)))
(define-for-syntax (mk-get name)
(format-id name "get-~a" (syntax-e name)))
(define-for-syntax (mk-set name)
(format-id name "set-~a" (syntax-e name)))
(define-for-syntax (mk-listen name)
(format-id name "listen-~a" (syntax-e name)))
(define-syntax (field/notify stx)
(syntax-case stx ()
[(field/notify name value)
(with-syntax ([init-name (mk-init #'name)]
[get-name (mk-get #'name)]
[set-name (mk-set #'name)]
[listen-name (mk-listen #'name)])
#'(begin (field [name (init-name)])
(define/public (init-name) value)
(define/public-final (get-name)
(send name get))
(define/public-final (set-name new-value)
(send name set new-value))
(define/public-final (listen-name listener)
(send name listen listener))))]))
(define-syntax (notify-methods stx)
(syntax-case stx ()
[(notify-methods name)
(with-syntax ([init-name (mk-init #'name)]
[get-name (mk-get #'name)]
[set-name (mk-set #'name)]
[listen-name (mk-listen #'name)])
#'(begin (field [name (init-name)])
(define/public (init-name)
(new notify-box% (value #f)))
(define/public-final (get-name)
(send name get))
(define/public-final (set-name new-value)
(send name set new-value))
(define/public-final (listen-name listener)
(send name listen listener))))]))
(define-syntax (connect-to-pref stx)
(syntax-case stx ()
[(connect-to-pref name pref)
(with-syntax ([init-name (mk-init #'name)])
#'(define/override (init-name) (notify-box/pref pref)))]))
(define-syntax (connect-to-pref/readonly stx)
(syntax-case stx ()
[(connect-to-pref/readonly name pref)
(with-syntax ([init-name (mk-init #'name)])
#'(define/override (init-name) (notify-box/pref/readonly pref)))]))
#|
(define-syntax (define/listen stx)
(syntax-case stx ()
[(define/listen name value)
(unless (identifier? #'name)
(raise-syntax-error 'define/listen "expected identifier" #'name))
(with-syntax ([get-name (mk-get #'name)]
[set-name (mk-set #'name)]
[listen-name (mk-listen #'name)])
#'(begin
(define name value)
(define listeners null)
(define/public-final (get-name) name)
(define/public-final (set-name new-value)
(set! name new-value)
(for-each (lambda (listener) (listener new-value)) listeners))
(define/public-final (listen-name listener)
(set! listeners (cons listener listeners)))))]))
|#
(define notify-box%
(class object%
(init value)
(define v value)
(define listeners null)
;; get : -> value
;; Fetch current value
(define/public (get)
v)
;; set : value -> void
;; Update value and notify listeners
(define/public (set nv)
(set! v nv)
(for-each (lambda (p) (p nv)) listeners))
;; listen : (value -> void) -> void
;; Add a listener
(define/public (listen p)
(set! listeners (cons p listeners)))
;; remove-listener : (value -> void) -> void
(define/public (remove-listener p)
(set! listeners (remq p listeners)))
;; remove-all-listeners : -> void
(define/public (remove-all-listeners)
(set! listeners null))
(super-new)))
(define (notify-box/pref pref)
(define nb (new notify-box% (value (pref))))
(send nb listen pref)
nb)
(define (notify-box/pref/readonly pref)
(new notify-box% (value (pref))))
;; GUI elements tied to notify-boxes
;; See unstable/private/notify.ss for the non-gui parts of notify-boxes.
(define (menu-option/notify-box parent label nb)
(define menu-item

13
collects/unstable/gui/prefs.ss
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@ -1,13 +1,10 @@
#lang scheme/base
(require (for-syntax scheme/base)
;; owner: ryanc
(require (for-syntax scheme/base syntax/parse)
framework/framework)
(provide pref:get/set)
(define-syntax pref:get/set
(syntax-rules ()
[(_ get/set prop)
(define get/set
(define (pref:get/set sym)
(case-lambda
[() (preferences:get 'prop)]
[(newval) (preferences:set 'prop newval)]))]))
[() (preferences:get sym)]
[(v) (preferences:set sym v)]))

85
collects/unstable/private/notify.ss Normal file
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@ -0,0 +1,85 @@
#lang scheme/base
;; owner: ryanc
(require (for-syntax scheme/base syntax/parse unstable/syntax)
scheme/list
scheme/class)
(provide define-notify
notify-box%
notify-box/pref)
;; Non-gui parts of notify-boxes
;; Worth splitting into two libraries?
;; Probably not, very few non-gui uses of classes.
(define-for-syntax (mk-init name)
(format-id name "init-~a" (syntax-e name)))
(define-for-syntax (mk-get name)
(format-id name "get-~a" (syntax-e name)))
(define-for-syntax (mk-set name)
(format-id name "set-~a" (syntax-e name)))
(define-for-syntax (mk-listen name)
(format-id name "listen-~a" (syntax-e name)))
(define-syntax (define-notify stx)
(syntax-parse stx
[(define-notify name:id
(~optional value:expr
#:defaults ([value #'(new notify-box% (value #f))]))
(~optional (~and #:init-method init-method)))
(with-syntax ([init-name (mk-init #'name)]
[get-name (mk-get #'name)]
[set-name (mk-set #'name)]
[listen-name (mk-listen #'name)])
(with-syntax ([(init-expr init-method-decl)
(if (attribute init-method)
(list #'(init-name)
#'(define/public (init-name) value))
(list #'value
#'(begin)))])
(quasisyntax/loc stx
(begin (field [name init-expr])
init-method-decl
(define/public-final (get-name)
(send name get))
(define/public-final (set-name new-value)
(send name set new-value))
(define/public-final (listen-name listener)
(send name listen listener))))))]))
(define notify-box%
(class object%
(init value)
(define v value)
(define listeners null)
;; get : -> value
;; Fetch current value
(define/public (get)
v)
;; set : value -> void
;; Update value and notify listeners
(define/public (set nv)
(set! v nv)
(for-each (lambda (p) (p nv)) listeners))
;; listen : (value -> void) -> void
;; Add a listener
(define/public (listen p)
(set! listeners (cons p listeners)))
;; remove-listener : (value -> void) -> void
(define/public (remove-listener p)
(set! listeners (remq p listeners)))
;; remove-all-listeners : -> void
(define/public (remove-all-listeners)
(set! listeners null))
(super-new)))
(define (notify-box/pref pref #:readonly? [readonly? #f])
(define nb (new notify-box% (value (pref))))
(send nb listen pref)
nb)