Closed cloudrac3r closed 1 year ago
The underlying button% handles a bitmap% argument just fine, even when it's an observable of a bitmap! Try this minimal example where I import the private button file directly, bypassing the contract:
#lang racket/base (require racket/class racket/function images/icons/control images/icons/style images/icons/stickman (only-in racket/gui timer%) (except-in racket/gui/easy button) racket/gui/easy/private/view/button racket/gui/easy/operator) (define/obs @ms (current-inexact-milliseconds)) (new timer% [notify-callback (λ () (:= @ms (current-inexact-milliseconds)))] [interval 10]) (define/obs @stickman (@ms . ~> . (λ (ms) (running-stickman-icon (/ ms 1000) #:height 32 #:head-color run-icon-color #:arm-color "white" #:body-color run-icon-color)))) (render (window #:size '(200 200) (button @stickman (λ () (println (obs-peek @ms))))))
Your button contract should allow bitmap% too.
The original button% class can also accept another special thing that you may wish to support, see https://docs.racket-lang.org/gui/button_.html for the full contract.
Should be fixed. Thanks!
Bogdanp
commented
1 year ago
The underlying button% handles a bitmap% argument just fine, even when it's an observable of a bitmap! Try this minimal example where I import the private button file directly, bypassing the contract:
Your button contract should allow bitmap% too.
The original button% class can also accept another special thing that you may wish to support, see https://docs.racket-lang.org/gui/button_.html for the full contract.