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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, 1997 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 ;; Maintainer: Hrvoje Niksic <hniksic@srce.hr>
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7 ;; Keywords: help, extensions, faces, hypermedia
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8 ;; Version: 1.9960-x
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9 ;; X-URL: http://www.dina.kvl.dk/~abraham/custom/
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10
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11 ;; This file is part of XEmacs.
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12
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13 ;; XEmacs is free software; you can redistribute it and/or modify
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14 ;; it under the terms of the GNU General Public License as published by
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15 ;; the Free Software Foundation; either version 2, or (at your option)
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16 ;; any later version.
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17
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18 ;; XEmacs is distributed in the hope that it will be useful,
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19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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21 ;; GNU General Public License for more details.
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22
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23 ;; You should have received a copy of the GNU General Public License
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24 ;; along with XEmacs; see the file COPYING. If not, write to the
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25 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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26 ;; Boston, MA 02111-1307, USA.
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27
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28 ;;; Commentary:
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29 ;;
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30 ;; If you want to use this code, please visit the URL above.
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31 ;;
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32 ;; This file only contain the code needed to define new widget types.
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33 ;; Everything else is autoloaded from `wid-edit.el'.
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34
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35 ;;; Code:
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36
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37 ;; Neither XEmacs, nor latest GNU Emacs need this -- provided for
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38 ;; compatibility.
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39 ;; (defalias 'define-widget-keywords 'ignore)
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40
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41 (defmacro define-widget-keywords (&rest keys)
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42 "This doesn't do anything in Emacs 20 or XEmacs."
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43 (`
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44 (eval-and-compile
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45 (let ((keywords (quote (, keys))))
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46 (while keywords
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47 (or (boundp (car keywords))
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48 (set (car keywords) (car keywords)))
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49 (setq keywords (cdr keywords)))))))
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50
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51 (defun define-widget (name class doc &rest args)
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52 "Define a new widget type named NAME from CLASS.
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53
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54 NAME and CLASS should both be symbols, CLASS should be one of the
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55 existing widget types, or nil to create the widget from scratch.
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56
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57 After the new widget has been defined, the following two calls will
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58 create identical widgets:
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59
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60 * (widget-create NAME)
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61
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62 * (apply 'widget-create CLASS ARGS)
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63
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64 The third argument DOC is a documentation string for the widget."
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65 (put name 'widget-type (cons class args))
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66 (put name 'widget-documentation doc)
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67 name)
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68
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69 ;;; The End.
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70
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71 (provide 'widget)
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72
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73 ;; widget.el ends here
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