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|
;-----------------
; file name is sierp.l
;-----------------
(defun sh (i)
(format t "signal ~d~%" i)
(if (not (= i 2)) #|sigint|# (setq *signal-handler* 'sh))
)
(setq *signal-handler* 'sh)
(defun register-function (f &rest l)
(pod-address f)
)
(defun aref (a i) (svref a i))
(load "notify.l")
;; Sierpinski demo
;; written by steve gadol of sun.
;; modified to run under excl with the lower case sensitive option set
;;
;(eval-when (compile load eval) (require :sunview) (require :notify))
;(use-package :sunview)
;(use-package :ff)
;(eval-when (compile) (proclaim '(optimize (speed 3) (safety 0))))
(defun init_plot (pw)
(setq saved_pw pw)
)
(defun plot_ (x y)
(pw_vector saved_pw old_x old_y x y PIX_SRC 1)
(set_plot_ x y)
)
(defun set_plot_ (x y)
(setq old_x x old_y y)
)
(defun clear_canvas nil
(pw_write saved_pw 0 0 512 512 PIX_SRC ;NULL
0 0 0)
)
;; command strategy
;; button:
;; start drawing - *notify-command* to :draw
;; stop drawing - *notify-command* to :exit
;; exit program - *notify-command* to :exit
;;
;; command select dispatch
;; :draw begin drawing
;; :exit throw to exit loop throw to stop drawing
;;
(defvar *n*)
(defvar *h0*)
(defvar *sizes*)
(defvar *iterations*)
(defvar *pw*)
(defvar *x*)
(defvar *y*)
(defvar *h*)
(proclaim '(type fixnum *x* *y* *h* *n* *h0*))
(defun set-plot ()
(set_plot_ *x* *y*))
(defun plot ()
(plot_ *x* *y*))
(defun-c-callable ITERATION-FUNC
((i :integer) (k :integer)) :integer
(setq *n* (aref *iterations* k))
0)
(defun-c-callable SIZE-FUNC
((i :integer) (k :integer)) :integer
(setq *h0* (aref *sizes* k))
0)
(defun-c-callable DRAW-SIERPINSKI-CURVES-CALLBACK () :integer
(setq *notify-command* :draw)
(notify_stop)
0)
(defun-c-callable ABORT-PGM () :integer
(setq *notify-command* :exit)
(notify_stop)
0)
(defun sierpinski ()
(let* ((base (window_create_frame 0
win_columns 80
frame_label "Sierpinski curves"
0))
(cntl (window_create_panel base
win_rows 4
0))
(cnvs (window_create_canvas base
win_columns 66
win_rows 32
0)))
(panel_create_choice
cntl
panel_item_x (attr_col 0)
panel_item_y (attr_row 0)
panel_label_string "number of iterations:"
panel_choice_strings "1" "2" "3" "4" "5" "6" 0
panel_notify_proc (register-function 'iteration-func 0)
0)
(panel_create_choice
cntl
panel_item_x (attr_col 0)
panel_item_y (attr_row 1)
panel_label_string "size to draw:"
panel_choice_strings "32" "64" "128" "256" "512" 0
panel_notify_proc (register-function 'size-func 1)
0)
(setq *start-drawing-item*
(panel_create_button
cntl
panel_item_x (attr_col 0)
panel_item_y (attr_row 3)
panel_label_image (panel_button_image
cntl "start drawing"
15 0)
panel_notify_proc
(register-function 'draw-sierpinski-curves-callback)
0))
(setq *panel-exit-item*
(panel_create_button
cntl
panel_item_x (attr_col 20)
panel_item_y (attr_row 3)
panel_label_image (setq *exit-pgm-image*
(panel_button_image
cntl "exit demo"
15 0))
panel_notify_proc (register-function 'abort-pgm)
0))
(setq *exit-draw-image*
(panel_button_image
cntl "stop drawing" 15 0))
(window_fit base)
(setq *n* 1
*h0* 32)
(setq *sizes* #(32 64 128 256 512))
(setq *iterations* #(1 2 3 4 5 6))
(setq *pw* (window_get cnvs canvas_pixwin))
(init_plot *pw*)
(window_set base win_show 1 frame_no_confirm 1 0)
(unwind-protect
(catch 'exit (notify-start-loop 'handle-select-command))
(progn (window_destroy base)
(notify_dispatch)
0))))
(defun handle-select-command (command value)
(declare (ignore value))
(case command
(:draw (draw-the-sierpinski-curve))
(:exit (throw 'exit t))))
(defun handle-dispatch-command (command value)
(declare (ignore value))
(case command
(:exit (throw 'draw t))))
(defun draw-the-sierpinski-curve ()
(panel_set *panel-exit-item* panel_label_image *exit-draw-image* 0)
(panel_set *start-drawing-item* panel_show_item 0 0)
(catch 'draw (draw-sierpinski-curves))
(panel_set *panel-exit-item* panel_label_image *exit-pgm-image* 0)
(panel_set *start-drawing-item* panel_show_item 1 0)
)
(defun draw-sierpinski-curves ()
(clear_canvas)
(let ((x0 0)
(y0 0))
(declare (type fixnum x0 y0))
(setq *h* (/ *h0* 4)
x0 (* 2 *h*)
y0 (* 3 *h*))
(do ((i 1 (1+ i)))
((or (> i *n*)
(< *h* 2)) nil)
(setq x0 (- x0 *h*)
*h* (/ *h* 2)
y0 (+ y0 *h*))
(setq *x* x0
*y* y0)
(set-plot)
(a i) (setq *x* (+ *x* *h*)) (setq *y* (- *y* *h*)) (plot)
(b i) (setq *x* (- *x* *h*)) (setq *y* (- *y* *h*)) (plot)
(c i) (setq *x* (- *x* *h*)) (setq *y* (+ *y* *h*)) (plot)
(d i) (setq *x* (+ *x* *h*)) (setq *y* (+ *y* *h*)) (plot)))
0)
(defun a (i)
(let ((im1 (1- i)))
(notify-dispatch-step 'handle-dispatch-command 4)
(if (> i 0) (progn
(a im1) (setq *x* (+ *x* *h*)) (setq *y* (- *y* *h*)) (plot)
(b im1) (setq *x* (+ *x* (* 2 *h*))) (plot)
(d im1) (setq *x* (+ *x* *h*)) (setq *y* (+ *y* *h*)) (plot)
(a im1)))))
(defun b (i)
(let ((im1 (1- i)))
(notify-dispatch-step 'handle-dispatch-command 4)
(if (> i 0) (progn
(b im1) (setq *x* (- *x* *h*)) (setq *y* (- *y* *h*)) (plot)
(c im1) (setq *y* (- *y* (* 2 *h*))) (plot)
(a im1) (setq *x* (+ *x* *h*)) (setq *y* (- *y* *h*)) (plot)
(b im1)))))
(defun c (i)
(let ((im1 (1- i)))
(notify-dispatch-step 'handle-dispatch-command 4)
(if (> i 0) (progn
(c im1) (setq *x* (- *x* *h*)) (setq *y* (+ *y* *h*)) (plot)
(d im1) (setq *x* (- *x* (* 2 *h*))) (plot)
(b im1) (setq *x* (- *x* *h*)) (setq *y* (- *y* *h*)) (plot)
(c im1)))))
(defun d (i)
(let ((im1 (1- i)))
(notify-dispatch-step 'handle-dispatch-command 4)
(if (> i 0) (progn
(d im1) (setq *x* (+ *x* *h*)) (setq *y* (+ *y* *h*)) (plot)
(a im1) (setq *y* (+ *y* (* 2 *h*))) (plot)
(c im1) (setq *x* (- *x* *h*)) (setq *y* (+ *y* *h*)) (plot)
(d im1)))))
(format t "type (sierpinski) to start demo~%")
|
