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wrong eye

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fixed various problems with the graph traversal, and colouring. included a modified
version of the graph library from MrLib, to expose internal structs and provide new
possibilites for breaking things. keyboard commands are now prefixed by the control-key.
This commit is contained in:
nik gaffney 2006-09-14 18:38:47 +02:00
parent d105ce2b3b
commit c7403699a5
3 changed files with 1189 additions and 44 deletions
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1053
graph.scm Normal file
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135
qfwfq.scm
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@ -3,12 +3,12 @@
;; a simple setup for testing ideas about visual programming
;;
;; copyright (C) 2004 FoAM vzw
;; You are granted the rights to distribute and use this software
;; under the terms of the Lisp Lesser GNU Public License, known
;; as the LLGPL. The LLGPL consists of a preamble and the LGPL.
;; Where these conflict, the preamble takes precedence. The LLGPL
;; is available online at http://opensource.franz.com/preamble.html
;; and is distributed with this code (see: LICENCE and LGPL files)
;; You are granted the rights to distribute and use this software
;; under the terms of the GNU Lesser General Public License as
;; published by the Free Software Foundation; either version 2.1 of
;; the License, or (at your option] any later version. The LGPL is
;; distributed with this code (see: LICENCE) and available online
;; at http://www.gnu.org/copyleft/lesser.html
;; authors
;; - nik gaffney <nik@fo.am>
@ -29,9 +29,11 @@
;; changes
;; 2006-09-11
;; - scraped into coherence from various sources
;; 2006-09-14
;; - fixed tree-colouring and traversal
(module qfwfq mzscheme
(require (lib "graph.ss" "mrlib")
(require "graph.scm" ;modified from (lib "graph.ss" "mrlib")
(lib "class.ss")
(lib "list.ss")
(lib "string.ss")
@ -48,6 +50,7 @@
set-node-value
get-node-value
draw-parse-tree
colour-tree
wobble-tree
eval-tree
tree->sexp
@ -59,7 +62,9 @@
(let ([debugging #t] ; toggle #t/#f
[debug-level 1]) ; higher is more info
(if (and debugging (>= debug-level level))
(printf fstring fargs))))
(if (list? fargs)
(apply printf (cons fstring fargs))
(printf fstring fargs)))))
;;;;;;;;; ;; ;; ;;
;;
@ -89,15 +94,17 @@
(class (graph-snip-mixin editor-snip%)
(init-field (value ()))
(init-field (dirty #f))
(public set-value besmirch clean)
(define (set-value v)
(inherit-field parent-links)
;(inherit link)
(define/public (set-value v)
(set! value v))
(define (besmirch)
(define/public (besmirch)
(debug 2 "smirched: ~a ~%" this)
(set! dirty #t)
(map (lambda (x) (send x besmirch))
(send this get-children)))
(define (clean)
(define/public (clean)
(set! dirty #f))
;; should be more coarse grained than 'on-event', but what?+
(define/override (on-char dc x y editorx editory event)
@ -108,14 +115,23 @@
(super on-char dc x y editorx editory event))
(define/override (own-caret own-it?)
(if own-it?
(debug 1 "node: ~a got keybrd focus~%" this)
(debug 3 "node: ~a got keybrd focus~%" this)
(if dirty
(begin (debug 1 "node: ~a lost keybrd focus~%" this)
(begin (debug 3 "node: ~a lost keybrd focus~%" this)
(send this besmirch)
(send this clean))))
(super own-caret own-it?))
;; links
(define/public (get-parent-links) parent-links)
(super-new)))
;; .. edges?
;; would require modifying private methods in graph.
;; see -> draw-non-self-connection for example
;; maybe directly modify the list via get-parent-links
;; see -> (define-local-member-name get-parent-links)
;; an output snip will display or modify its contents when besmirched.. .
(define output-snip%
(class node-snip%
@ -144,6 +160,16 @@
(define (get-node-value node)
(send node value))
;; convert given object to string
(define (to-string x)
(cond ((string? x) x)
((char? x) (list->string (list x)))
((number? x) (number->string x))
((symbol? x) (symbol->string x))
((list? x) (apply string-append (map to-string x)))
(else (error "don't know how to convert to string: " x))))
;; decor
;; brushes/ pens see -> 6.15 pen%
;; colours -> 6.7 color-database<%>
@ -159,15 +185,6 @@
(define pen4 (send the-pen-list find-or-create-pen "DarkSeaGreen" 1 'solid))
(define brush4 (send the-brush-list find-or-create-brush "Beige" 'solid))
; convert given object to string
(define (to-string x)
(cond ((string? x) x)
((char? x) (list->string (list x)))
((number? x) (number->string x))
((symbol? x) (symbol->string x))
((list? x) (apply string-append (map to-string x)))
(else (error "don't know how to convert to string: " x))))
;;;;;;;;; ; ; ;; ;
;;
;; re-traversal
@ -191,7 +208,7 @@
;; subtrees, or args
(for-each
(lambda (child)
(if (list? child)
(if (list? child)
(draw-parse-tree child x y node pb)
(let ((sibling (new node-snip%)))
(send pb insert sibling)
@ -199,6 +216,76 @@
(send (send sibling get-editor) insert (to-string child)))))
(cdr tree))))))
;; tree colouring, using pens, brushes and wax.
;; where the given node is the root of the tree to be traversed
(define (colour-tree node pb)
(let ([parents (send node get-parents)])
(if (not (empty? parents))
(begin (debug 1 "tree-coloring: ~a ~%" node)
(colour-links node
(list pen1 pen2 brush1 brush2) ;; functions
(list pen3 pen4 brush3 brush4)) ;; elements
;; function node
;; - set pens and brushes...
;; subtrees, or args
(for-each
(lambda (parent)
(colour-tree parent pb))
parents)))))
;; link colouring, of each link from a given node
;; *-colours are each a list of 4 pens & brushes
(define (colour-links node fcn-colours elt-colours)
(let* ([parents (send node get-parents)]
[links (send node get-parent-links)])
(let-values ([(fp1 fp2 fb1 fb2) (split-colours fcn-colours)]
[(ep1 ep2 eb1 eb2) (split-colours elt-colours)])
(debug 1 "link-coloring: ~a -> ~a ~%" node parents)
(if (not (empty? links))
(for-each
(lambda (parent)
(if (empty? (send parent get-parents))
;; elements)
(let ([link (find-link node parent)])
(set-colours link ep1 ep2 eb1 eb2))
;; functions
(let ([link (find-link node parent)])
(set-colours link fp1 fp2 fb1 fb2))))
parents)))))
;; find a link from one node to another
(define (find-link n1 n2)
(let ([links (send n1 get-parent-links)]
[result #f])
(map (lambda (link)
(debug 2 "finding link: ~a -> ~a~%" n2 (link-snip link))
(if (equal? (link-snip link) n2)
(set! result link))) links) result))
;; relabel
(define *travail* 0)
(define (re-label! link)
(let ([label (link-label link)])
(set! *travail* (+ 1 *travail*))
(set-link-label! link (string-append (if label label "")
(format ".~a." *travail*)))))
;; multicolour
(define (set-colours link p1 p2 b1 b2)
(set-link-dark-pen! link p1)
(set-link-dark-brush! link b1)
(set-link-light-pen! link p2)
(set-link-light-brush! link b2))
;; return pens & brushes form a list as mulitple-values
(define (split-colours c)
(values (list-ref c 0)
(list-ref c 1)
(list-ref c 2)
(list-ref c 3)))
;; basic layout attmepts
;; traverse from a node, and s p r e a d

45
xaueneuax.scm
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@ -3,12 +3,12 @@
;; x a u e n e u a x - nqdataflow
;;
;; copyright (C) 2004 FoAM vzw
;; You are granted the rights to distribute and use this software
;; under the terms of the Lisp Lesser GNU Public License, known
;; as the LLGPL. The LLGPL consists of a preamble and the LGPL.
;; Where these conflict, the preamble takes precedence. The LLGPL
;; is available online at http://opensource.franz.com/preamble.html
;; and is distributed with this code (see: LICENCE and LGPL files)
;; You are granted the rights to distribute and use this software
;; under the terms of the GNU Lesser General Public License as
;; published by the Free Software Foundation; either version 2.1 of
;; the License, or (at your option] any later version. The LGPL is
;; distributed with this code (see: LICENCE) and available online
;; at http://www.gnu.org/copyleft/lesser.html
;; authors
;; - nik gaffney <nik@fo.am>
@ -22,15 +22,15 @@
;; quite scheme -> nqdataflow
;;
;; keyboard controls
;; n - adds new node, connected to a selected node
;; c - conencts 2 selected nodes
;; d - disconnects selected node
;; C-n - adds new node, connected to a selected node
;; C-c - conencts 2 selected nodes
;; C-d - disconnects selected node
;; delete - deletes node
;; enter - evaluates current node
;; to do
;; - deal with evaluation order display
;; - check directions of node connection with 'c'
;; - check directions of node connection with 'C-c'
;; - multiple connections -> clarify
;; - deal with circularity
@ -38,7 +38,7 @@
;; 2006-09-11
;; - scraped into coherence from various sources
(require (lib "graph.ss" "mrlib")
(require "graph.scm"
"qfwfq.scm")
(define xauen-pasteboard%
@ -61,7 +61,7 @@
(send ec set-editor p)
(define dc (send ec get-dc))
;; text input calllback - spit and polish
;; text input callback - spit and polish
;; beware hardcoded node & pasteboard & lack of error checking
(define (parse-text-input tf event)
(if (eqv? (send event get-event-type) 'text-field-enter)
@ -86,28 +86,33 @@
[Gx (send event get-x)]
[Gy (send event get-y)])
(let-values ([(x y) (send target editor-location-to-dc-location Gx Gy)])
(debug 1 "key[de]maping->key: ~a ~%" key)
(debug 3 "key[de]maping->key: ~a ~%" key)
(debug 1 "selected-snip: ~a ~%" selected-snip)
(if (send event get-control-down)
(case key
[(#\n) ;; n fr 'new'
[(#\n) ;; C-n fr 'new'
(debug 1 "add: ~a" key)
(let ([node (new node-snip%)])
(send target insert node)
(if selected-snip
(add-links node selected-snip))
;;(send target move-to node x y)
(begin (add-links node selected-snip)
;; re.colour the tree, first [grand]child should do...
(colour-tree (car (send selected-snip get-children)) p)))
(send target move-to node x y)
)]
[(#\c) ;; c fr 'connect'
[(#\c) ;; C-c fr 'connect'
(let ([next (send target find-next-selected-snip selected-snip)])
(debug 1 "next-snip: ~a ~%" next)
(add-links selected-snip next))]
[(#\d) ;; d fr 'disconnect'
[(#\d) ;; C-d fr 'disconnect'
(let ([next (send target find-next-selected-snip selected-snip)])
(send selected-snip remove-child next)
(send selected-snip remove-parent next)
(send next remove-parent selected-snip)
(send next remove-child selected-snip))]
))))
(send next remove-child selected-snip))]
[(#\z) ;; C-z re.colour
(colour-tree selected-snip p)]
)))))
;; basic nodewrenching
(define n1 (new output-snip%))