;;; cogre-uml.el --- UML support for COGRE

;;; Copyright (C) 2001 Eric M. Ludlam

;; Author: Eric M. Ludlam <zappo@gnu.org>
;; Keywords: oop, uml
;; X-RCS: $Id: cogre-uml.el,v 1.10 2005/09/30 20:06:58 zappo Exp $

;; This file is not part of GNU Emacs.

;; This is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; This software is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.

;;; Commentary:
;;
;; Provides UML support for COGRE.
;;
;; See http://c2.com/cgi/wiki?UmlAsciiArt for more examples of using
;; ASCII to draw UML diagrams.

(require 'cogre)

;;; Code:
(defclass cogre-package (cogre-node)
  ((name-default :initform "Package")
   (blank-lines-top :initform 0)
   (blank-lines-bottom :initform 0)
   (alignment :initform left)
   (subgraph :initarg :subgraph
	     :initform nil
	     :type (or null cogre-graph)
	     :documentation
	     "A graph which represents the classes within this package.
The subgraph should be scanned to extract all the elements drawn into
the package node.")
   )
  "A Package node.
Packages represent other class diagrams, and list the major nodes
within them.  They can be linked by dependency links.")

(defmethod cogre-node-slots ((package cogre-package))
  "Return a list containing the list of classes in PACKAGE.
The `subgraph' slot must be scanned for this information."
  (list nil)
  )

(defclass cogre-class (cogre-node)
  ((name-default :initform "Class")
   (blank-lines-top :initform 0)
   (blank-lines-bottom :initform 0)
   (alignment :initform left)
   (class :initarg :class
	  :initform nil
	  :type (or string list)
	  :custom sexp
	  :documentation
	  "The semantic token representing the class this is drawing.")
   (attributes :initarg :attributes
	       :initform nil
	       :type list
	       :custom sexp
	       :documentation
	       "A list of attributes belonging to this Class representation.
Each attribute must in the form of a semantic token. ei.
 (\"object-name\" variable \"type\" ... )
See `semantic-fetch-tags' for details on possible token forms.
These items do not need to be REAL semantic tokens, however.
Only the format is needed to get the name/typing information.")
   (methods :initarg :methods
	    :initform nil
	    :type list
	    :custom sexp
	    :documentation
	    "A list of methods belonging to this Class representation.
See `attribute' slot for details on the form of each token in this list.")
   )
  "A Class node.
Class nodes represent a class, and can list the attributes and methods
within them.  Classes can have attribute links, and class hierarchy links.")

(defmethod cogre-uml-stoken->uml ((class cogre-class) stoken &optional text)
  "For CLASS convert a Semantic style token STOKEN into a uml definition.
It also adds properties that enable editing, and interaction with
this node.  Optional argument TEXT is a preformatted string."
  (let ((newtext 
	 (or text
	     (concat (car stoken) ":"
		     (cond ((stringp (nth 2 stoken))
			    (nth 2 stoken))
			   ((listp (nth 2 stoken))
			    (car (nth 2 stoken)))
			   (t ""))))))
    ;; Add in some useful properties
    (add-text-properties 0 (length newtext)
			 (list 'semantic stoken
			       
			       )
			 newtext)
    ;; Return the string
    newtext))

(defmethod cogre-node-slots ((class cogre-class))
  "Return a list of each section, including title, attributes, and methods.
Argument CLASS is the class whose slots are referenced."
  (list
   (mapcar (lambda (s) (cogre-uml-stoken->uml class s)) (oref class attributes))
   (mapcar (lambda (s) (cogre-uml-stoken->uml class s)) (oref class methods))
   ))

(defclass cogre-inherit (cogre-link)
  ((end-glyph :initform [ (" ^ " "/_\\")
			  ("_|_" "\\ /" " V ")
			  (" /|" "< |" " \\|")
			  ("|\\" "|/") ])
   (horizontal-preference-ratio :initform .1)
   )
  "This type of link indicates that the two nodes reference infer inheritance.
The `start' node is the child, and the `end' node is the parent.
This is supposed to infer that START inherits from END.")

(defclass cogre-aggrigate (cogre-link)
  ((start-glyph :initform [ ("/\\ " "\\/" )
			    ("/\\ " "\\/" )
			    ("<>") ("<>") ])
   (horizontal-preference-ratio :initform 1)
   )
  "This type of link indicates aggregation.
The `start' node is the owner of the aggregation, the `end' node is
the item being aggregated.
This is supposed to infer that START contains END.")


(provide 'cogre-uml)

;;; cogre-uml.el ends here