61 lines
2.2 KiB
Plaintext
61 lines
2.2 KiB
Plaintext
;;;;
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;;;; STk adaptation of the Tk widget demo.
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;;;;
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;;;; This demonstration script creates a toplevel window containing
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;;;; buttons that display bitmaps instead of text.
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;;;;
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(require "Button")
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(define (demo-puzzle)
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(define (puzzle-switch w num xpos ypos space)
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(let ((x (vector-ref xpos num))
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(y (vector-ref ypos num))
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(x_spc (vector-ref xpos space))
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(y_spc (vector-ref ypos space)))
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(when (or (and (>= y (- y_spc 0.01)) (<= y (+ y_spc 0.01))
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(>= x (- x_spc 0.26)) (<= x (+ x_spc 0.26)))
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(and (>= x (- x_spc 0.01)) (<= x (+ x_spc 0.01))
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(>= y (- y_spc 0.26)) (<= y (+ y_spc 0.26))))
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(vector-set! xpos space x)
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(vector-set! xpos num x_spc)
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(vector-set! ypos space y)
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(vector-set! ypos num y_spc)
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(place w :relx x_spc :rely y_spc))))
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(let* ((w (make-demo-toplevel "puzzle"
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"15-Puzzle Demonstration"
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"This window shows three ways of using bitmaps or images in radiobuttons and checkbuttons. On the left are two radiobuttons, each of which displays a bitmap and an indicator. In the middle is a checkbutton that displays a different image depending on whether it is selected or not. On the right is a checkbutton that displays a single bitmap but changes its background color to indicate whether or not it is selected."))
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(frame (make <Frame> :parent w :width 120 :height 120 :border-width 2
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:relief "sunken")))
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(pack frame :side "top" :pady 20 :padx 20)
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(let ((order '#(3 1 6 2 5 7 15 13 4 11 8 9 14 10 12))
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(xpos (make-vector 16))
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(ypos (make-vector 16))
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(space 0))
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(do ((i 0 (+ i 1)))
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((= i 15))
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(let* ((num (vector-ref order i))
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(b (make <Button> :parent frame :text num
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:highlight-thickness 0)))
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;; Set the command of the button (and grab current environment)
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(set! (command b) (lambda ()
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(puzzle-switch b num xpos ypos space)))
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(vector-set! xpos num (* (modulo i 4) 0.25))
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(vector-set! ypos num (* (floor (/ i 4)) 0.25))
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(place b :relx (vector-ref xpos num)
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:rely (vector-ref ypos num)
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:relwidth 0.25
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:relheight 0.25)))
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(vector-set! xpos space 0.75)
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(vector-set! ypos space 0.75))))
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