;;;-*- Mode:Common-Lisp; Package:PICTURES; Base:10 -*-
;;;
;;;
;;;
;;;			 TEXAS INSTRUMENTS INCORPORATED
;;;				  P.O. BOX 149149
;;;			       AUSTIN, TEXAS 78714-9149
;;;
;;; Copyright (C)1987,1988,1989,1990 Texas Instruments Incorporated.
;;;
;;; Permission is granted to any individual or institution to use, copy, modify,
;;; and distribute this software, provided that this complete copyright and
;;; permission notice is maintained, intact, in all copies and supporting
;;; documentation.
;;;
;;; Texas Instruments Incorporated provides this software "as is" without
;;; express or implied warranty.
;;;
;;; Authors: Delmar Hager, James Dutton, Teri Crowe
;;; Contributors: Kerry Kimbrough, Patrick Hogan, Eric Mielke

(in-package "PICTURES")
(DEFVAR *view-list* nil)
(DEFVAR *display-list* nil)

(defevent view (:key-press #\a :control) (key-animate))
(defevent view (:button-press :button-1) (view-select-graphic))
(defevent view (:button-press :button-2) (view-unselect-graphic))
(defevent view (:button-press :button-3) (view-select-region))

(defevent view (:key-press #\r :control)  (refresh-view))
(defevent view (:key-press #\r :meta)     (repair-view))

(defevent view (:key-press #\z :control)  (view-zoom-in))
(defevent view (:key-press #\z :meta)     (view-zoom-out))
(defevent view (:key-press #\w :control)  (view-show-world))

(defevent view (:key-press #\b :control)  (view-pan-right))
(defevent view (:key-press #\f :control)  (view-pan-left))
(defevent view (:key-press #\n :control)  (view-pan-down))
(defevent view (:key-press #\p :control)  (view-pan-up))

(defevent view (:key-press #\q :control)  (handle-keys)) ; to quit

(defevent grabber (:button-press :button-1) (view-transform-graphic))
(defevent grabber (:button-press :button-3) (view-rotate-graphic))

;; color keywords are mapped to black and white for monochrome monitors - override for color monitors

(defun road-demo (  &key (a-jump 20) (host *default-host*) (wall-place 500)
			 (fg "white")(red "red")(blue "blue"))
  (declare (special  auto-view test-shell jump block *l* *display-list*
		     *view-list* wall label line graphic-image
		     road-view auto wheel1 wheel2 spokes1 spokes2 body
		     road-pict filled-block))
  (LET (g-temp)
    (SETF jump a-jump)
    (unwind-protect
	(progn
	  
	  (SETF body      (make-scene :sensitivity :subselectable))
	  (SETF road-pict (make-scene :sensitivity :subselectable))
	  (SETF block (make-rectangle 0 0 100 100 ))
	  (SETF filled-block (make-filled-rectangle 40 40 90 90 ))
	  (rotate-transform filled-block (radians 30))
	  (SETF label (make-label "Hot Rod Crash" :base-x 130 :base-y  40
				  :gstate (make-gstate :foreground "white"
						       :background "black")))
	  ;; label is not inserted into the road-pict scene,
	  ;; it is inserted into the auto scene later
	  (SETF line (make-line 50 50 200 200))
	  (scene-insert road-pict line)
	  (scene-insert road-pict block)
	  (move-transform block 30 50)
	  (scene-insert road-pict filled-block)
          (setf  road-view road-pict)
	  (scene-insert ; Make the roadway
	   road-pict (make-line 0 20 950 20))
	  
	  (scene-insert	; Make the automobile
	   road-pict (setf auto (make-scene)))

	  (scene-insert
	   auto 
	   (setf wheel1 ; Make the back wheel
		 (make-scene :sensitivity :subselectable)))

          (scene-insert
	   wheel1
	   (make-filled-circle 100 30 20
			       :gstate (make-gstate :foreground fg)))
	  (scene-insert
	   wheel1
	   (setf g-temp (make-filled-circle
			 100 30 10 
			 :gstate (make-gstate :foreground blue))))
	  (setf spokes1 (make-scene))
          (scene-insert wheel1 spokes1)
          (scene-insert
	   spokes1
	   (setf g-temp (make-line 100 32 100 36
				   :gstate (make-gstate :foreground red))))
          (rotate-transform g-temp (radians 45) 100 30)
          (scene-insert
	   spokes1 (setf g-temp 
			 (make-line 100 32 100 36
				    :gstate (make-gstate :foreground red))))
          (rotate-transform g-temp (radians 180) 100 30)
          (scene-insert
	   spokes1 (setf g-temp 
			 (make-line 100 32 100 36 
				    :gstate (make-gstate :foreground red))))
          (rotate-transform g-temp (radians 225) 100 30)
          (scene-insert
	   spokes1 (setf g-temp
			 (make-line 100 32 100 36
				    :gstate (make-gstate :foreground red))))
          (rotate-transform spokes1 (radians 30) 100 30)

          (scene-insert
	   auto (setf wheel2 ; Make the front wheel
		      (make-scene :sensitivity :subselectable)))
          (scene-insert
	   wheel2 (make-filled-circle 100 30 20
				      :gstate (make-gstate :foreground fg)))
          (scene-insert
	   wheel2
	   (setf g-temp (make-filled-circle 100 30 10
					    :gstate
					    (make-gstate :foreground blue))))
	  (setf spokes2 (make-scene))
          (scene-insert wheel2 spokes2)

          (scene-insert
	   spokes2 
	   (setf g-temp (make-line 100 32 100 36
				   :gstate (make-gstate :foreground red))))
          (rotate-transform g-temp (radians 45) 100 30)
          (scene-insert
	   spokes2
	   (setf g-temp (make-line 100 32 100 36
				   :gstate (make-gstate :foreground red))))
          (rotate-transform g-temp (radians 180) 100 30)
          (scene-insert 
	   spokes2
	   (setf g-temp (make-line 100 32 100 36
				   :gstate (make-gstate :foreground red))))
          (rotate-transform g-temp (radians 225) 100 30)
          (scene-insert
	   spokes2
	   (setf g-temp (make-line 100 32 100 36
				   :gstate (make-gstate :foreground red))))
          (move-transform wheel2 150 0)
	  
          (scene-insert auto body)		;; Make the body
          (scene-insert
	   body (make-line 112 28 238 28
			   :gstate (make-gstate :foreground fg)))
          (scene-insert
	   body (make-line 112 30 238 30 :gstate (make-gstate :foreground fg)))
          (scene-insert
	   body (setf g-temp
		      (make-polyline nil :gstate (make-gstate :foreground fg))))
          (SETF (vertices g-temp) (vector 270  28 299 28 314.6 34))
          (scene-insert
	   body (make-rectangle 304 33 16 9
				:gstate (make-gstate :foreground fg)))
          (scene-insert
	   body (setf g-temp
		      (make-polyline nil :gstate (make-gstate :foreground fg))))
          (SETF (vertices g-temp) 
		(merge-vectors (vector 314.6 314.6 233 185 126 100 60 60)
			       (vector 43    55    68  84  84  68  55 43)))
          (scene-insert
	   body (make-rectangle 54 33 16 9
				:gstate (make-gstate :foreground fg)))
          (scene-insert
	   body
	   (setf g-temp (make-polyline nil :gstate
				       (make-gstate :foreground fg))))
          (SETF (vertices g-temp) (merge-vectors (vector 62 68 80)
						 (vector 33 28 28)))
          (scene-insert
	   body (SETF *l*
		      (make-line 72.5 55 292 55 
				 :gstate
				 (make-gstate :foreground red :line-width 2))))
          (scene-insert
	   body (make-line 74 57 290 57 :gstate (make-gstate :foreground red)))
          (scene-insert
	   body (setf g-temp (make-filled-polygon-edge
			      nil
			      :gstate (make-gstate :foreground red))))
	  (SETF (edge-gstate g-temp)
		(make-gstate :line-width 2 :foreground fg))
	  
          (SETF (vertices g-temp)
		(merge-vectors (vector 227 182 150 150)
			       (vector 68  81  81  68)))
	  (scene-insert
	   body (setf g-temp (make-filled-polygon-edge
			      nil
			      :gstate (make-gstate :foreground red))))
	  (setf (gstate-foreground g-temp) red)
	  (SETF (edge-gstate g-temp) (make-gstate :line-width 2 :foreground fg))
	  
          (SETF (vertices g-temp)
		(merge-vectors (vector 145 145 129 106)
			       (vector 68  81  81  68)))
          (scene-insert
	   body
	   (make-rectangle 151 60.5 9 3.5 :gstate (make-gstate :foreground fg)))
          (scene-insert
	   body
	   (make-rectangle 301 46.5 9 3.5 :gstate (make-gstate :foreground fg)))
          (scene-insert
	   body

	   (make-rectangle 66 45.5 9 3.5 :gstate (make-gstate :foreground fg)))
	  (scene-insert auto label) ;; auto scene is :editable
	  
	  (SETF *display-list* nil)
	  (SETF *view-list* nil)
	  (SETF auto-view (clue-view-window host))
	  (add-a-scene road-pict)
	  (make-wall road-pict wall-place)
	  (SETF (graphic-sensitivity wall) :subselectable)
	  (move-transform auto 100 0)
	  
	  (view-pan auto-view 100 0)
	  (add-event label '(:button-press :button-1) '(say-hi ))
         
          ;;----------------	  
	  ;; The event-loop
          ;;----------------	  

	  (catch :stop-x-window 
	    (LOOP
	      (process-next-event (contact-display auto-view) 10)
	      )))

      (close-display (contact-display auto-view))
      )))

(DEFUN merge-vectors (vector-x vector-y)
  "merge two vector together by alternating the values"
  (LET ((avector (make-array '(10) :adjustable t :fill-pointer 0)))
    (DOTIMES (i (LENGTH vector-x))
      (VECTOR-PUSH-EXTEND (AREF vector-x i) avector)
      (VECTOR-PUSH-EXTEND (AREF vector-y i) avector))
    avector))

(DEFUN clue-view-window (&optional (default-host *default-host*)
				   (default-display 0)  (default-screen 0))
  (DECLARE (SPECIAL *view-list* *display-list*))
  (LET* (( mydisplay (clue:open-contact-display
		      'Hello-world
		      :host default-host :display default-display
		      :default-screen default-screen))
	 ( screen    (contact-screen (display-root mydisplay)))
	 ( mybackground (screen-Black-Pixel screen))
	 ( myforeground (screen-white-Pixel  screen))
	 
	 ( newwindow (make-contact
		       'top-level-shell
		       :parent mydisplay
		       :state :mapped
		       :x 30
		       :y 30
		       :width 1500
		       :height 300))
	 ( mywindow (make-view :parent newwindow :foreground myforeground :background mybackground
			       :title "Hello World"  #+nil :font #+nil "vg-20" :width 700 
			       :height 300   :class :input-output
			       :map :on)))
    
    (SETF *view-list* (CONS mywindow *view-list*))
    (SETF *display-list* (CONS mydisplay *display-list*))
    (add-event mywindow '(:key-press #\q :control) '(handle-keys ))
    (add-event mywindow '(:key-press #\a :control) '(key-animate ))
    (SETF (display-after-function mydisplay) nil)
    mywindow))

(DEFUN clue-exp-view-window (&optional (default-host "uniform")
				       (default-display 0)  (default-screen 0))
  
  (let* (( mydisplay (clue:open-contact-display 
		      'Hello-world
		      :host default-host :display default-display
		      :default-screen default-screen))
	 (screen    (contact-screen (display-root mydisplay)))
	 ( mybackground (screen-Black-Pixel screen))
	 ( myforeground (screen-white-Pixel  screen))
	 
	 ( newwindow (make-contact
		       'top-level-shell
		       :parent mydisplay
		       :state :mapped
		       :x 30
		       :y 30
		       :width 700
		       :height 300))
	 ( mywindow      (make-contact
			   'view
			   :class        :input-output
			   :x            30	;temporary value
			   :y            30	;temporary value
			   :width        400	;temporary value
			   :height       150	;temporary value                
			   :parent     newwindow
			   #+nil :font      #+nil  "vg-20"
			   :title      "Hello World"
			   :foreground mybackground
			   :background myforeground
			   :map :on)))
    
    (SETF *view-list* (CONS mywindow *view-list*))
    (SETF *display-list* (CONS mydisplay *display-list*))
    (add-event mywindow '(:key-press #\q :control)
	       '(handle-keys ))
    (add-event mywindow '(:key-press #\a :control )
	       '(key-animate ))
    ))

(DEFMETHOD say-hi ((graphic graphic)(view view) &optional (name "graphic"))
  (FORMAT t "~a says hi~%" name))

(DEFMETHOD handle-keys ((view view))
  (THROW :stop-x-window t))

(DEFMETHOD key-animate ((view view))
  (DECLARE (SPECIAL jump))
  (animate jump))

(DEFUN close-views ()
  (DOLIST (display *display-list* nil)
    (close-display display))
  (SETF *view-list* nil)
  (SETF *display-list* nil))

(DEFUN add-a-scene (userscene)
  (DOLIST (view *view-list* nil)
    (SETF (view-graphic view) userscene)))

(DEFUN refresh-views ()
  (DOLIST (view *view-list* nil)
    (refresh-view view) ))

(DEFUN repair-views ()
  (DOLIST (view *view-list* nil)
    (repair-view view) ))

(DEFUN pan-a-view (view-number x y)
  (view-pan (NTH (- view-number 1) *view-list*) x y))

(defun make-wall (road-pict wall-place)
  (declare (special road-view wall brick1 brick2 brick3))
  
  (setf wall (make-scene)) ; default sensitivity is :editable
  ;; wall sensitivity is later made :subselectable  
  (setf brick1 (make-rectangle 250 20 30 30))
  (setf brick2 (make-rectangle 250 20 30 30))
  (move-transform brick2 0 30)
  (setf brick3 (make-rectangle 250 20 30 30))
  (move-transform brick3 0 60)
  (scene-insert wall brick1)
  (scene-insert wall brick2)
  (scene-insert wall brick3)
  (move-transform wall wall-place 0)
  (scene-insert road-pict wall)
  )

(defun move-auto ( jump)
  (declare (special  wheel1 wheel2 spokes1 spokes2 auto wall))
  (let ((dust (make-polypoint nil)))
    (SETF (vertices dust) 
	  (merge-vectors 
	    (vector 58 97 91 3  29 40 94 76 70 36 89 32 87 96 23 88 78 90 6 87)
	    (vector 1  3  13 23 5  5  12 4  1  29 24 23 5  24 13 26 1  16 1 7)))
    (move-transform dust 0 20)
    (scene-insert auto dust)
    
    (multiple-value-bind (cx1 cy1)
        (graphic-fixed-point spokes1 :center )
      (multiple-value-bind (cx2 cy2)
          (graphic-fixed-point spokes2 :center )
	(PRINT (LIST cx1 cy1 cx2 cy2))
        (DO ()
	    ((> (rect-intersect (graphic-extent auto)
				(graphic-extent wall)) 0) nil)
          (move-transform auto jump 0)
          (rotate-transform spokes1 (radians -5) cx1 cy1)
          (rotate-transform spokes2 (radians -5) cx2 cy2)
          (repair-views)))
      )
    (scene-delete auto dust)
    (normalize-graphic auto)
    (refresh-views)))

(defun blow-wall ()
  (declare (special auto wall road-pict brick1 brick2 brick3))
  (normalize-graphic road-pict)
  (multiple-value-bind (wx wy)
      (graphic-fixed-point auto :southeast t)
    (dotimes (i 90)
      (move-transform brick1 2 -0.2)
      (rotate-transform brick2 (radians -1.38) (+ wx 40) wy)
      (scale-transform brick2 0.992 0.992 wx wy)
      (rotate-transform brick3 (radians +1.38) (- wx 90) wy)
      (scale-transform brick3 1.005 1.005 wx wy)
      (repair-views)))
  (multiple-value-bind (cx2 cy2)
      (graphic-fixed-point brick2 :center)
    (multiple-value-bind (cx3 cy3)
        (graphic-fixed-point brick3 :center)
      (dotimes (i 11)
        (rotate-transform brick2 (radians -5) cx2 cy2)
        (rotate-transform brick3 (radians  5) cx3 cy3)
        (repair-views)))))

(defun animate (jump)
  (move-auto jump)
  (blow-wall))
























