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1 ;;; widget.el --- a library of user interface components.
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2 ;;
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3 ;; Copyright (C) 1996 Free Software Foundation, Inc.
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4 ;;
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5 ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
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6 ;; Keywords: help, extensions, faces, hypermedia
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7 ;; Version: 1.13
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8 ;; X-URL: http://www.dina.kvl.dk/~abraham/custom/
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9
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10 ;;; Commentary:
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11 ;;
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12 ;; If you want to use this code, please visit the URL above.
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13 ;;
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14 ;; This file only contain the code needed to define new widget types.
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15 ;; Everything else is autoloaded from `widget-edit.el'.
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16
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17 ;;; Code:
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18
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19 (eval-when-compile (require 'cl))
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20
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21 (defmacro define-widget-keywords (&rest keys)
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22 (`
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23 (eval-and-compile
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24 (let ((keywords (quote (, keys))))
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25 (while keywords
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26 (or (boundp (car keywords))
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27 (set (car keywords) (car keywords)))
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28 (setq keywords (cdr keywords)))))))
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29
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30 (define-widget-keywords :case-fold :widget-doc
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31 :create :convert-widget :format :value-create :offset :extra-offset
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32 :tag :doc :from :to :args :value :value-from :value-to :action
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33 :value-set :value-delete :match :parent :delete :menu-tag-get
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34 :value-get :choice :void :menu-tag :on :off :on-type :off-type
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35 :notify :entry-format :button :children :buttons :insert-before
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36 :delete-at :format-handler :widget :value-pos :value-to-internal
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37 :indent :size :value-to-external :validate :error :directory
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38 :must-match :type-error :value-inline :inline :match-inline :greedy
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39 :button-face-get :button-face :value-face :keymap :entry-from
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40 :entry-to :help-echo :documentation-property :hide-front-space
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41 :hide-rear-space)
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42
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43 ;; These autoloads should be deleted when the file is added to Emacs.
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44 (autoload 'widget-create "widget-edit")
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45 (autoload 'widget-insert "widget-edit")
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46
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47 ;;;###autoload
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48 (defun define-widget (name class doc &rest args)
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49 "Define a new widget type named NAME from CLASS.
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50
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51 NAME and CLASS should both be symbols, CLASS should be one of the
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52 existing widget types, or nil to create the widget from scratch.
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53
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54 After the new widget has been defined, the following two calls will
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55 create identical widgets:
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56
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57 * (widget-create NAME)
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58
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59 * (apply 'widget-create CLASS ARGS)
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60
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61 The third argument DOC is a documentation string for the widget."
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62 (put name 'widget-type (cons class args))
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63 (put name 'widget-documentation doc))
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64
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65 ;;; The End.
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66
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67 (provide 'widget)
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68
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69 ;; widget.el ends here
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