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1 ;;; msw-select.el --- Lisp interface to mswindows selections.
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2
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3 ;; Copyright (C) 1990, 1997 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1995 Sun Microsystems.
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5
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6 ;; Maintainer: XEmacs Development Team
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7 ;; Keywords: extensions, dumped
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8
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9 ;; This file is part of XEmacs.
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10
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11 ;; XEmacs is free software; you can redistribute it and/or modify it
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12 ;; under the terms of the GNU General Public License as published by
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13 ;; the Free Software Foundation; either version 2, or (at your option)
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14 ;; any later version.
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15
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16 ;; XEmacs is distributed in the hope that it will be useful, but
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17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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19 ;; General Public License for more details.
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20
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21 ;; You should have received a copy of the GNU General Public License
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22 ;; along with XEmacs; see the file COPYING. If not, write to the
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23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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24 ;; Boston, MA 02111-1307, USA.
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25
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26 ;;; Synched up with: Not in FSF
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27
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28 ;;; Commentary:
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29
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30 ;; This file is dumped with XEmacs (when mswindows support is compiled in).
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31 ;; #### Only copes with copying/pasting text
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32
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33 ;;; Code:
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34
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35 (defun mswindows-paste-clipboard ()
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36 "Insert the current contents of the mswindows clipboard at point,
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37 replacing the active selection if there is one."
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38 (interactive "*")
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39 (setq last-command nil)
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40 (setq this-command 'yank) ; so that yank-pop works.
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41 (let ((clip (mswindows-get-clipboard)) (s (mark-marker)) (e (point-marker)))
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42 (or clip (error "there is no text on the clipboard"))
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43 (if s
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44 (if mouse-track-rectangle-p
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45 (delete-rectangle s e)
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46 (delete-region s e)))
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47 (push-mark)
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48 (if mouse-track-rectangle-p
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49 (insert-rectangle clip)
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50 (insert clip))))
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51
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286
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52 (defun mswindows-own-clipboard (string)
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53 "Paste the given string to the mswindows clipboard."
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54 (mswindows-set-clipboard string))
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221
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55
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284
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56 (defun mswindows-cut-copy-clear-clipboard (mode)
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221
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57 "Don't use this function.
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284
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58 Use mswindows-cut-clipboard, mswindows-copy-clipboard or
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59 mswindows-clear-clipboard instead."
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60 (or (memq mode '(cut copy clear)) (error "unkown mode %S" mode))
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221
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61 (setq last-command nil)
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62 (let ((s (mark-marker)) (e (point-marker)))
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63 (if s
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64 (progn
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65 (if mouse-track-rectangle-p
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66 (progn
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67 (setq killed-rectangle (extract-rectangle s e))
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68 (kill-new (mapconcat 'identity killed-rectangle "\n")))
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69 (copy-region-as-kill s e))
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284
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70 (if (memq mode '(cut copy))
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71 (mswindows-set-clipboard (car kill-ring)))
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72 (if (memq mode '(cut clear))
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221
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73 (if mouse-track-rectangle-p
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74 (delete-rectangle s e)
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75 (delete-region s e))
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76 ;; mswindows apps normally leave the selection active but that feels weird here
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77 ;; (setq zmacs-region-stays t)
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78 ))
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79 (error "there is no selection to cut or copy"))))
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280
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80
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81 (defvar mswindows-selection-owned-p nil
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82 "Whether we have a selection or not.
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83 MS-Windows has no concept of ownership; don't use this.")
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84
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85 (defun mswindows-own-selection (data &optional type)
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86 "Make an MS Windows selection of type TYPE and value DATA.
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87 The argument TYPE is ignored, and DATA specifies the contents.
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88 DATA may be a string,
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89 a symbol, an integer (or a cons of two integers or list of two integers).
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90
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91 The selection may also be a cons of two markers pointing to the same buffer,
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92 or an overlay. In these cases, the selection is considered to be the text
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93 between the markers *at whatever time the selection is examined*.
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94 Thus, editing done in the buffer after you specify the selection
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95 can alter the effective value of the selection.
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96
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97 The data may also be a vector of valid non-vector selection values.
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98
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99 Interactively, the text of the region is used as the selection value."
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100 (interactive (if (not current-prefix-arg)
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101 (list (read-string "Store text for pasting: "))
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102 (list (substring (region-beginning) (region-end)))))
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103 (or (valid-simple-selection-p data)
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104 (and (vectorp data)
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105 (let ((valid t)
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106 (i (1- (length data))))
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107 (while (>= i 0)
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108 (or (valid-simple-selection-p (aref data i))
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109 (setq valid nil))
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110 (setq i (1- i)))
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111 valid))
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112 (signal 'error (list "invalid selection" data)))
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113 (if data
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114 (setq mswindows-selection-owned-p data)
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115 (setq mswindows-selection-owned-p nil))
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116 (setq primary-selection-extent
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117 (select-make-extent-for-selection
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118 data primary-selection-extent))
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119 (setq zmacs-region-stays t)
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120 data)
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121
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122 (defun mswindows-disown-selection (&optional secondary-p)
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123 "Assuming we own the selection, disown it. With an argument, discard the
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124 secondary selection instead of the primary selection."
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286
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125 (setq mswindows-selection-owned-p nil)
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126 (mswindows-delete-selection))
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280
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127
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128 (defun mswindows-selection-owner-p (&optional selection)
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129 "Return t if current emacs process owns the given Selection.
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130 The arg is ignored."
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131 (not (eq mswindows-selection-owned-p nil)))
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132
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