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button press event

This commit is contained in:
Johan Ceuppens 2012-01-17 00:43:11 +00:00
parent ab2b324b31
commit a3ed282a27
1 changed files with 28 additions and 5 deletions
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33
scsh/scgame/scgamewidgets.scm
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@ -30,6 +30,8 @@
;; for inits see scgame.scm ;; for inits see scgame.scm
;; FIXME refactor and cleanup
(define (make-scgame-widget) (define (make-scgame-widget)
(define (draw) (define (draw)
(display-msg "subclass responsability")) (display-msg "subclass responsability"))
@ -61,17 +63,38 @@
(set! height (cadr wh)) (set! height (cadr wh))
)) ))
(define (draw-pressed-image dpy win gc) (define (press-button dpy win gc)
(init-sync-x-events dpy) (init-sync-x-events dpy)
(map-window dpy win) (map-window dpy win)
(call-with-event-channel (call-with-event-channel
dpy win (event-mask exposure button-press) dpy win (event-mask button-press)
(lambda (channel) (lambda (channel)
(let loop () (let loop ()
(if (if
(let ((e (receive channel))) (let ((e (receive channel)))
(cond (cond
((expose-event? e) ((button-press-event? e)
(clear-window dpy win)
(draw-pressed-image dpy win gc)
)
((button-release-event? e)
(clear-window dpy win)
(draw-image dpy win gc)
)
(else #f)))
(loop))))))
(define (draw-pressed-image dpy win gc)
(init-sync-x-events dpy)
(map-window dpy win)
(call-with-event-channel
dpy win (event-mask exposure)
(lambda (channel)
(let loop ()
(if
(let ((e (receive channel)))
(cond
((or (expose-event? e)(map-event? e))
(clear-window dpy win) (clear-window dpy win)
(draw-points dpy win gc (* width height) 0 0 (draw-points dpy win gc (* width height) 0 0
(/ width 2) (/ height 2)) (/ width 2) (/ height 2))
@ -84,13 +107,13 @@
(init-sync-x-events dpy) (init-sync-x-events dpy)
(map-window dpy win) (map-window dpy win)
(call-with-event-channel (call-with-event-channel
dpy win (event-mask exposure button-press) dpy win (event-mask exposure map)
(lambda (channel) (lambda (channel)
(let loop () (let loop ()
(if (if
(let ((e (receive channel))) (let ((e (receive channel)))
(cond (cond
((expose-event? e) ((or (expose-event? e)(map-event? e))
(clear-window dpy win) (clear-window dpy win)
(draw-points dpy win gc (* width height) 0 0 (draw-points dpy win gc (* width height) 0 0
(/ width 2) (/ height 2)) (/ width 2) (/ height 2))