lux/chaos/gui.rkt

111 lines
2.8 KiB
Racket

#lang racket/base
(require racket/match
racket/class
racket/contract/base
racket/gui/base
racket/async-channel
lux/chaos)
(struct gui (depth-box event-ch drawer frame refresh!)
#:methods gen:chaos
[(define (chaos-yield c e)
(yield e))
(define (chaos-event c)
(gui-event-ch c))
(define (chaos-output! c o)
(when o
(set-box! (gui-drawer c) o))
((gui-refresh! c)))
(define (chaos-label! c l)
(send (gui-frame c) set-label l))
(define (chaos-swap! c t)
(define db (gui-depth-box c))
(define og (unbox db))
(set-box! db (add1 og))
(begin0 (t)
(if (zero? og)
(send (gui-frame c) show #f)
(set-box! db og))))])
(define (make-gui #:mode [mode 'draw]
#:icon [icon #f]
#:width [init-w 800]
#:height [init-h 600])
(define events-ch (make-async-channel))
(define gframe%
(class frame%
(define/override (on-size w h)
(refresh!))
(define/augment (on-close)
(async-channel-put events-ch 'close))
(define/override (on-subwindow-char w ke)
(async-channel-put events-ch ke))
(define/override (on-subwindow-event w me)
(async-channel-put events-ch me))
(super-new)))
(define drawer (box void))
(define (paint-canvas c dc)
((unbox drawer)
(send c get-width)
(send c get-height)
dc))
(define f
(new gframe%
[label ""]
[width init-w]
[height init-h]
[style '(fullscreen-button)]))
(define gl-config
(match mode
['draw #f]
['gl-compat
(new gl-config%)]
['gl-core
(define gl-config (new gl-config%))
(send gl-config set-legacy? #f)]
[gl-config
gl-config]))
(define c
(new canvas% [parent f]
[paint-callback paint-canvas]
[style
(cons 'no-autoclear
(if gl-config '(gl) '()))]))
(define (refresh!)
(send c refresh))
(send f center)
(send f show #t)
(when icon
(define icon-bm
(if (is-a? icon bitmap%)
icon
(read-bitmap icon)))
(when (eq? 'macosx (system-type 'os))
(local-require drracket/private/dock-icon)
(set-dock-tile-bitmap icon-bm)))
(define depth-box (box 0))
(gui depth-box events-ch drawer f refresh!))
(provide
(contract-out
[make-gui
(->* ()
(#:mode
(or/c (one-of/c 'draw 'gl-compat 'gl-core)
(is-a?/c gl-config%))
#:icon
(or/c #f path-string? (is-a?/c bitmap%))
#:width
exact-nonnegative-integer?
#:height
exact-nonnegative-integer?)
chaos?)]))