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actor-view tooltip

This commit is contained in:
Tony Garnock-Jones 2016-09-02 13:09:41 +01:00
parent 9f333345fc
commit 74b768044f
1 changed files with 28 additions and 7 deletions
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35
racket/syndicate-ide/main.rkt
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@ -31,6 +31,23 @@
(define half-scale (* 1/2 scale))
(+ half-scale (- (* half-scale pos) (* 1/2 extent))))
(define (tooltip touching? x y w h label-string)
(define label-text (text label-string 22 "black"))
(define label (overlay label-text (empty-scene (+ (image-width label-text) 10)
(+ (image-height label-text) 10))))
(define (pos)
(define v (- (x) (image-width label) 10))
(if (negative? v)
(+ (x) w 10)
v))
(react (assert #:when (touching?)
(outbound (simple-sprite -10
(pos)
(+ (y) (* 1/2 h) (- (* 1/2 (image-height label))))
(image-width label)
(image-height label)
label)))))
(define (actor-view parent-pid pid is-dataspace?)
(actor #:name (list 'actor-view pid)
@ -42,14 +59,18 @@
(define costume (circle (if is-dataspace? 40 20) "solid" color))
(define extent (make-rectangular (image-width costume) (image-height costume)))
(define (x) (coord-top (real-part (pos)) (real-part extent) (window-width (win))))
(define (y) (coord-top (imag-part (pos)) (imag-part extent) (window-height (win))))
(define/query-value touching? #f (inbound (touching pid)) #t)
(on-start (tooltip touching? x y (real-part extent) (imag-part extent) (format "~a" pid)))
(assert (view-position pid (pos)))
(assert (outbound (simple-sprite 0
(coord-top (real-part (pos))
(real-part extent)
(window-width (win)))
(coord-top (imag-part (pos))
(imag-part extent)
(window-height (win)))
(assert (outbound (simple-sprite #:touchable-id pid
#:touchable-predicate in-unit-circle?
0
(x)
(y)
(real-part extent)
(imag-part extent)
costume)))