gui/gui-lib/mred/private/wx/common/event.rkt
2014-12-02 02:33:07 -05:00

131 lines
4.7 KiB
Racket

#lang racket/base
(require racket/class
"../../syntax.rkt")
(provide event%
mouse-event%
key-event%
control-event%
column-control-event%
scroll-event%
popup-event%)
(defclass event% object%
(init-properties [[exact-integer? time-stamp] 0])
(super-new))
(defclass mouse-event% event%
(init-properties [[(symbol-in enter leave left-down left-up
middle-down middle-up
right-down right-up motion)
event-type]]
[[bool? left-down] #f]
[[bool? middle-down] #f]
[[bool? right-down] #f]
[[exact-integer? x] 0]
[[exact-integer? y] 0]
[[bool? shift-down] #f]
[[bool? control-down] #f]
[[bool? meta-down] #f]
[[bool? alt-down] #f])
(init [time-stamp 0])
(init-properties [[bool? caps-down] #f]
[[bool? mod3-down] #f]
[[bool? mod4-down] #f]
[[bool? mod5-down] #f])
(super-new [time-stamp time-stamp])
(def/public (button-changed? [(symbol-in left middle right any) [button 'any]])
(and (memq event-type
(case button
[(any) '(left-down left-up middle-down middle-up right-down right-up)]
[(left) '(left-down left-up)]
[(middle) '(middle-down middle-up)]
[(right) '(right-down right-up)]))
#t))
(def/public (button-down? [(symbol-in left middle right any) [button 'any]])
(and (memq event-type
(case button
[(any) '(left-down middle-down right-down)]
[(left) '(left-down)]
[(middle) '(middle-down)]
[(right) '(right-down)]))
#t))
(def/public (button-up? [(symbol-in left middle right any) [button 'any]])
(and (memq event-type
(case button
[(any) '(left-up middle-up right-up)]
[(left) '(left-up)]
[(middle) '(middle-up)]
[(right) '(right-up)]))
#t))
(def/public (dragging?)
(and (eq? event-type 'motion)
(or left-down middle-down right-down)))
(def/public (entering?)
(eq? event-type 'enter))
(def/public (leaving?)
(eq? event-type 'leave))
(def/public (moving?)
(eq? event-type 'motion)))
(defclass key-event% event%
(init-properties [[(make-alts symbol? char?) key-code] #\nul]
[[bool? shift-down] #f]
[[bool? control-down] #f]
[[bool? meta-down] #f]
[[bool? alt-down] #f]
[[exact-integer? x] 0]
[[exact-integer? y] 0])
(init [time-stamp 0])
(init-properties [[bool? caps-down] #f]
[[bool? mod3-down] #f]
[[bool? mod4-down] #f]
[[bool? mod5-down] #f]
[[bool? control+meta-is-altgr] #f])
(properties [[(make-alts symbol? char?) key-release-code] 'press]
[[(make-or-false (make-alts symbol? char?)) other-shift-key-code] #f]
[[(make-or-false (make-alts symbol? char?)) other-altgr-key-code] #f]
[[(make-or-false (make-alts symbol? char?)) other-shift-altgr-key-code] #f]
[[(make-or-false (make-alts symbol? char?)) other-caps-key-code] #f])
(super-new [time-stamp time-stamp]))
(defclass control-event% event%
(init-properties [[(symbol-in button check-box choice
list-box list-box-dclick list-box-column text-field
text-field-enter slider radio-box
menu-popdown menu-popdown-none tab-panel)
event-type]])
(init [time-stamp 0])
(super-new [time-stamp time-stamp]))
(defclass column-control-event% control-event%
(init-properties [[exact-nonnegative-integer? column]])
(init event-type
[time-stamp 0])
(unless (eq? event-type 'list-box-column)
(raise-type-error (init-name 'column-control-event%)
"'list-box-column"
event-type))
(super-new [event-type event-type]
[time-stamp time-stamp]))
(defclass popup-event% control-event%
(properties [[any? menu-id] 0])
(super-new))
(defclass scroll-event% event%
(init-properties [[(symbol-in top bottom line-up line-down page-up page-down thumb) event-type]
'thumb]
[[(symbol-in horizontal vertical) direction] 'vertical]
[[(integer-in 0 10000) position] 0])
(init [time-stamp 0])
(super-new [time-stamp time-stamp]))