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;;;;
;;;; CANVAS
;;;;
;;;; Copyright(c) Toshihiro MATSUI, ETL, 1993
;;;;
(in-package "X")
(require :Xdecl "Xdecl.l")
(defmethod canvas
(:create (&rest args)
(send-super* :create args)
(setq menu (instance x:menu-panel :create))
(send menu :create-item x:button-item
"red" self (list :color-event
(send *color-map* :alloc #xffff #x1000 #x1000)))
(send menu :create-item x:button-item
"blue" self (list :color-event
(send *color-map* :alloc #x1000 #x1000 #xffff)))
(send menu :create-item x:button-item
"green" self (list :color-event
(send *color-map* :alloc #x1000 #xffff #x1000 )))
(send menu :create-item x:button-item "clear"
self :clear-event)
(send menu :create-item x:button-item
"white back" self (list :background-event
(send *color-map* :alloc #xffff #xffff #xffff )))
(send menu :create-item x:button-item
"lightgray back" self (list :background-event
(send *color-map* :alloc #xc000 #xc000 #xc000 )))
(send menu :create-item x:button-item
"darkgray back" self (list :background-event
(send *color-map* :alloc #x4000 #x4000 #x4000 )))
(send menu :create-item x:button-item
"black back" self (list :background-event
(send *color-map* :alloc 0 0 0 )))
self)
(:selection () (list topleft bottomright))
(:adjust-corners ()
(let ((corner1 (integer-vector
(min (aref topleft 0) (aref bottomright 0))
(min (aref topleft 1) (aref bottomright 1))))
(corner2 (integer-vector
(max (aref topleft 0) (aref bottomright 0))
(max (aref topleft 1) (aref bottomright 1)))))
(psetq bottomright corner2
topleft corner1 )) )
(:draw-selection-rectangle ()
(let ((corner (integer-vector
(min (aref topleft 0) (aref bottomright 0))
(min (aref topleft 1) (aref bottomright 1)))))
(send self :draw-rectangle corner
(abs (- (aref bottomright 0) (aref topleft 0)))
(abs (- (aref bottomright 1) (aref topleft 1))))
))
(:buttonpress (event)
(let ((state (event-button event)))
(cond ((<= state 2)
(send self :function :xor)
(send gcon :foreground 127)
(setq topleft (event-pos event) bottomright (copy-seq topleft))
(send self :draw-selection-rectangle)
(setf buttonActive T))
((eql state 3)
(send menu :popup (event-x-root event) (event-y-root event))
)
)))
(:motionnotify (event)
(when buttonActive
(let ((state (event-state event)))
(cond ((member :left state)
(send self :draw-selection-rectangle)
(setq bottomright (event-pos event))
(send self :draw-selection-rectangle))
((member :right state)
(send menu :motionnotify event))
)
)
))
(:buttonrelease (event)
(cond (buttonActive
(let ((state (event-state event)))
(cond ((and (member :control state) (member :right state))
(send self :clear)
(send self :function :copy))
((member :right state)
(setq *buttonrelease-wanted* menu) )
(t
(send self :draw-selection-rectangle)
(send self :function :copy)
(setq bottomright (event-pos event))
(setf buttonActive nil)) )))
(t (send-super :buttonrelease event))) )
(:clear-event (e ) #|e=self|# (send self :clear))
(:color-event (color e)
(send self :foreground (car color)) )
(:background-event (color e)
(send self :background (car color)) )
)
(defclass graph-canvas :super canvas
:slots (pixmap ymax ymin prev-y graph-args xinc yinc gcs count))
(defmethod graph-canvas
(:create (&rest args
&key (max 1.0) (min -1.0)
(background *blackpixel*)
(lines 1) (colors) (color *whitegc*)
&allow-other-keys)
(send-super* :create :background background args)
(send self :new-pixmap)
(send self :range max min)
(send self :lines lines)
(cond (colors (send self :colors colors))
(color
(setq gcs (make-array lines :initial-element
(if (derivedp color gcontext)
color
(make-color-gc color)))) )
)
(setq count 0)
(send self :clear)
self)
(:new-pixmap (&optional (w width) (h height))
(setq pixmap (instance xpixmap :create :width w :height h))
;; (send pixmap :foreground fgcolor)
;; (send pixmap :background bgcolor)
self)
(:range (max &optional (min 0.0))
(setq ymax max ymin min)
self)
(:lines (n)
(setq prev-y (make-array n :initial-element ymin)))
(:colors (cs)
(setq gcs (make-array (length prev-y)))
(let ((color))
(dotimes (i (length prev-y))
(setq color (pop cs))
(setf (aref gcs i)
(if (derivedp color gcontext)
color
(make-color-gc color)))))
)
(:graph (&rest args)
;; (send* pixmap :graph args)
(setq graph-args args)
(send-super* :graph args)
(send pixmap :copy-from self)
self)
(:incremental-graph (new-values)
(CopyArea *display* drawable drawable (gcontext-gcid gcon)
1 0 ;source-x source-y
(1- width) height
0 0 ) ; dest-x dest-y
(ClearArea *display* drawable
(1- width) 0 1 height 0) ; x, y, width, height
;;
(let (newval ny py g)
(dotimes (i (length new-values))
(setq py (aref prev-y i)
newval (aref new-values i)
ny (- height (round (* height (/ (float newval) (- ymax ymin)))))
g (aref gcs i))
;; (send gc :function :copy)
;; (format *error-output* "py=~s ny=~s~%" py ny)
(send self :line (- width 2) py width ny g)
;; (send self :point (1- width) new-y gc)
(setf (aref prev-y i) ny))
(if (zerop (mod (incf count) 10))
(send pixmap :copy-from self))
)
)
(:clear ()
(setq graph-args nil)
(send-super :clear)
(send pixmap :copy-from self))
(:resize (x y)
(send self :new-pixmap x y)
(send-super :resize x y)
(send self :flush)
)
(:redraw ()
(if graph-args (send* self :graph graph-args)))
)
;;****************************************************************
(export '(pixmap-scroller))
(defclass pixmap-scroller :super panel
:slots (pixwin vscroll hscroll pixmap
start-x start-y pix-width pix-height))
(defmethod pixmap-scroller
(:create (&rest args
&key
pixmap
&allow-other-keys)
(send-super* :create args)
(print (list width height))
(setq pixwin (instance xwindow :create :parent self
:width (- width 15) :height (- height 15))
vscroll (instance xscroll-bar :create :parent self
:width 10)
hscroll (instance x:xhorizontal-scroll-bar :create
:parent self :height 10))
(send self :reset-subwindows)
(if pixmap (send self :set-pixmap pixmap))
self)
(:reset-subwindows ()
(send pixwin :resize (- width 15) (- height 15))
(send vscroll :move (- width 13) 0)
(send hscroll :move 0 (- height 13))
self)
(:set-pixmap (pmap)
(setq pixmap pmap
start-x 0
start-y 0
pix-width (send pmap :width)
pix-height (send pmap :height)
)
(send pixwin :copy-from pixmap)
pixmap)
(:scroll (&optional (n 1) &aux srcy desty erasey)
(cond ((= n 0) (return-from :scroll nil))
((> n 0) (setq srcy n
desty 0
erasey (- (/ (send self :height) 16) n)))
(t (setq srcy 0 desty (abs n) erasey 0)))
(setq n (min (/ (send self :height) 16) (abs n)))
(format t "; :scroll n=~s srcy=~s desty=~s erasey=~s~%"
n srcy desty erasey)
(send pixwin :Copy-from pixwin
:source-x 2 :source-y (+ 2 (* srcy 12))
:width width :height (* (- (/ (send self :height) 16) n) 12)
:x 2 :y(+ 2 (* desty 12)) ; dest-x dest-y
)
(send pixwin :Clear-Area
:x 2 :y (+ 2 (* erasey 12)) ; x, y
:width width :height (* n 12))
)
)
(provide :Xcanvas "@(#)$Id$")
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