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(provide "graph3")
(require "graphics")
;;;
;;; Options dialog stuff
;;;
(defproto graph-toggle-item-proto '(graph message) () toggle-item-proto)
(defmeth graph-toggle-item-proto :isnew (title graph message)
(setf (slot-value 'graph) graph)
(setf (slot-value 'message) message)
(call-next-method title :value (send graph message)))
(defmeth graph-toggle-item-proto :set-value ()
(let* ((message (slot-value 'message))
(graph (slot-value 'graph))
(old (if (send graph message) t nil))
(new (if (send self :value) t nil)))
(unless (eq old new) (send graph message new))))
(defproto graph-backcolor-choice-item-proto '(graph) () choice-item-proto)
(defmeth graph-backcolor-choice-item-proto :isnew (graph)
(setf (slot-value 'graph) graph)
(call-next-method (list "White Background" "Black Background")
:value (if (eq (send graph :back-color) 'white) 0 1)))
(defmeth graph-backcolor-choice-item-proto :set-value ()
(let ((graph (slot-value 'graph)))
(case (send self :value)
(0 (send graph :back-color 'white)
(send graph :draw-color 'black))
(1 (send graph :back-color 'black)
(send graph :draw-color 'white)))))
(defproto graph-scaling-choice-item-proto '(graph) () choice-item-proto)
(defmeth graph-scaling-choice-item-proto :isnew (graph)
(setf (slot-value 'graph) graph)
(call-next-method (list "Variable Scaling" "Fixed Scaling" "No Scaling")
:value (case (send graph :scale-type)
(variable 0)
(fixed 1)
(t 2))))
(defmeth graph-scaling-choice-item-proto :set-value ()
(let ((graph (slot-value 'graph)))
(send graph :scale-type
(case (send self :value)
(0 'variable)
(1 'fixed)
(2 nil)))))
(defmeth graph-proto :set-options ()
"Method args: ()
Opens dialog to set plot options. Items are obtained using the
:make-options-dialog-items message."
(let* ((items (send self :make-options-dialog-items))
(d (send ok-or-cancel-dialog-proto :new items :title "Options"
:ok-action #'(lambda ()
(dolist (i items)
(send i :set-value))
(send self :redraw)))))
(unwind-protect (send d :modal-dialog)
(send d :remove))))
(defmeth graph-proto :make-options-dialog-items ()
(remove
nil
(list
(send graph-backcolor-choice-item-proto :new self)
(send graph-toggle-item-proto :new "Vertical Scroll" self :has-v-scroll)
(send graph-toggle-item-proto :new "Horizontal Scroll" self :has-h-scroll)
(send graph-toggle-item-proto :new "Fixed Aspect Ratio" self :fixed-aspect)
(if (screen-has-color)
(send graph-toggle-item-proto :new "Use color" self :use-color)))))
(defmeth scatmat-proto :make-options-dialog-items ()
(remove
nil
(list
(send graph-backcolor-choice-item-proto :new self)
(send graph-toggle-item-proto :new "Vertical Scroll" self :has-v-scroll)
(send graph-toggle-item-proto :new "Horizontal Scroll" self :has-h-scroll)
(if (screen-has-color)
(send graph-toggle-item-proto :new "Use color" self :use-color)))))
(defmeth spin-proto :make-options-dialog-items ()
(remove
nil
(list
(send graph-backcolor-choice-item-proto :new self)
(send graph-scaling-choice-item-proto :new self)
(if (screen-has-color)
(send graph-toggle-item-proto :new "Use color" self :use-color)))))
;;;;
;;;;
;;;; Plot Sliders and Slicers
;;;;
;;;;
;;; Graph dialogs
(defproto graph-dialog-proto '(plot))
(defmeth graph-dialog-proto :install (plot)
(setf (slot-value 'plot) plot)
(send plot :add-subordinate self))
(defmeth graph-dialog-proto :clobber ()
(let ((plot (slot-value 'plot)))
(if plot (send plot :delete-subordinate self)))
(setf (slot-value 'plot) nil))
;;; Graph slicers
(defmeth graph-proto :add-slicer (s)
(setf (slot-value 'slicers) (adjoin s (slot-value 'slicers)))
(if (send self :allocated-p) (send self :adjust-slices)))
(defmeth graph-proto :remove-slicer (s)
(setf (slot-value 'slicers) (remove s (slot-value 'slicers)))
(when (send self :allocated-p)
(if (eq 'show (send s :type)) (send self :show-all-points))
(send self :adjust-slices)))
(defproto graph-slicer-proto
'(variable delta selecting)
()
(list graph-dialog-proto interval-slider-dialog-proto))
(defmeth graph-slicer-proto :isnew (plot var delta range
&rest args
&key select)
(setf (slot-value 'variable) var)
(setf (slot-value 'delta) delta)
(setf (slot-value 'selecting) select)
(apply #'call-next-method range
:action #'(lambda (x) (send plot :adjust-slices)) args)
(send self :install plot))
(defmeth graph-slicer-proto :install (plot)
(call-next-method plot)
(send plot :add-slicer self))
(defmeth graph-slicer-proto :clobber ()
(let ((plot (slot-value 'plot)))
(if plot (send plot :remove-slicer self)))
(call-next-method))
(defmeth graph-slicer-proto :selection ()
(let ((x (send self :value))
(var (slot-value 'variable))
(d (slot-value 'delta)))
(which (< (- x d) var (+ x d)))))
(defmeth graph-slicer-proto :type ()
(if (slot-value 'selecting) 'select 'show))
(defmeth graph-proto :adjust-slices ()
(cond
((slot-value 'slicers)
(let ((indices (reduce #'intersection
(mapcar #'(lambda (x) (send x :selection))
(slot-value 'slicers))))
(show (some #'(lambda (x) (eq 'show (send x :type)))
(slot-value 'slicers))))
(cond
(show (send self :points-showing indices))
(t (send self :points-selected indices)))))
(t (send self :unselect-all-points) (send self :show-all-points))))
;; Installing graph slicers
(defmeth graph-proto :slicer (var &rest args
&key
(fraction 0.25)
title
(points 20))
(unless title (setq title "Slicer"))
(let* ((range (list (min var) (max var)))
(p (* 0.5 fraction (- (nth 1 range) (nth 0 range))))
(slicer (apply #'send graph-slicer-proto :new self var p
(list (+ (nth 0 range) p) (- (nth 1 range) p))
:title title
:points points
args)))
(send slicer :value (/ (+ (nth 0 range) (nth 1 range)) 2))
slicer))
(defmeth graph-proto :make-slicer-dialog ()
(let* ((fractions (list 0.1 0.2 0.3))
(var-item (send edit-text-item-proto :new
(format nil "(iseq 0 ~d) "
(- (send self :num-points) 1))))
(fraction-item (send choice-item-proto :new
(mapcar #'(lambda (x) (format nil "~a" x))
fractions)
:value 1))
(type-item (send choice-item-proto :new
(list "Select Slice"
"Show Only Slice")))
expr
title
var
fraction
select
ok)
(flet ((ok-action ()
(setq expr (read (make-string-input-stream
(send var-item :text))))
(setq title (format nil "~a" expr))
(setq var (eval expr))
(setq fraction (nth (send fraction-item :value)
fractions))
(setq select (= 0 (send type-item :value)))
t))
(let* ((d (send ok-or-cancel-dialog-proto :new
(list (send text-item-proto :new "Variable")
var-item
(list (list
(send text-item-proto :new "Fraction")
fraction-item)
(list
(send text-item-proto :new "Slicer Type")
type-item)))
:ok-action #'ok-action)))
(unwind-protect (setq ok (send d :modal-dialog))
(send d :remove))))
(if ok
(send self :slicer var
:title title
:fraction fraction
:select select))))
|
