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428
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1 ;;; window-xemacs.el --- XEmacs window commands aside from those written in C.
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2
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3 ;; Copyright (C) 1985, 1989, 1993-94, 1997 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1995, 1996 Ben Wing.
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5
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6 ;; Maintainer: XEmacs Development Team
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7 ;; Keywords: frames, 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, 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 synched.
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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.
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31
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32 ;; slb - 5/29/97
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33 ;; Split apart from window.el in order to keep that file better in synch
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34 ;; with Emacs.
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35
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36 ;;; Code:
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37
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38 (defgroup windows nil
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39 "Windows within a frame."
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40 :group 'environment)
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41
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42 (defun recenter (&optional n window)
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43 "Center point in WINDOW and redisplay frame. With N, put point on line N.
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44 The desired position of point is always relative to the window.
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45 Just C-u as prefix means put point in the center of the window.
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46 No N (i.e., it is nil) erases the entire frame and then
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47 redraws with point in the center of the window.
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48 If WINDOW is nil, the selected window is used."
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49 (interactive "_P")
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50 (center-to-window-line (if (consp n) nil n) window)
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51 (when (null n)
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52 (redraw-frame (window-frame window) t)))
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53
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444
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54 (defun backward-other-window (count &optional which-frames which-devices)
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55 "Select the COUNT'th different window on this frame, going backwards.
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56 This is just like calling `other-window' with COUNT negated."
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428
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57 (interactive "p")
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444
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58 (other-window (- count) which-frames which-devices))
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428
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59
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60 (defalias 'windows-of-buffer 'get-buffer-window-list)
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61
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62 (defun buffer-in-multiple-windows-p (&optional buffer)
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63 "Return t if BUFFER is in multiple windows.
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64 If BUFFER is not specified, the current buffer will be used."
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65 (setq buffer (or buffer
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66 (get-buffer buffer)
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67 (get-file-buffer buffer)
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68 (current-buffer)))
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69 (> (length (windows-of-buffer buffer)) 1))
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70
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71 (defun window-list (&optional frame minibuf window)
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72 "Return a list of windows on FRAME, beginning with WINDOW.
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73 FRAME and WINDOW default to the selected ones.
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74 Optional second arg MINIBUF t means count the minibuffer window
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75 even if not active. If MINIBUF is neither t nor nil it means
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76 not to count the minibuffer even if it is active."
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77 (setq window (or window (selected-window))
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78 frame (or frame (selected-frame)))
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79 (if (not (eq (window-frame window) frame))
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80 (error "Window must be on frame."))
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81 (let ((current-frame (selected-frame))
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82 list)
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83 (unwind-protect
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84 (save-window-excursion
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85 (select-frame frame)
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86 (walk-windows
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87 (function (lambda (cur-window)
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88 (if (not (eq window cur-window))
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89 (setq list (cons cur-window list)))))
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90 minibuf)
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91 (setq list (cons window list)))
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92 (select-frame current-frame))))
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93
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94 ;; We used to have set-window-dedicated-p as an obsolete version
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95 ;; of set-window-buffer-dedicated, but it really makes more sense
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96 ;; this way.
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97
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98 (make-obsolete 'set-window-buffer-dedicated 'set-window-dedicated-p)
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99 (defun set-window-buffer-dedicated (window buffer)
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100 "Make WINDOW display BUFFER and be dedicated to that buffer.
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101 Then Emacs will not automatically change which buffer appears in WINDOW.
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102 If BUFFER is nil, make WINDOW not be dedicated (but don't change which
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103 buffer appears in it currently)."
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104 (if (bufferp buffer)
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105 (set-window-buffer window (get-buffer-create buffer)))
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106 (set-window-dedicated-p window (not (null buffer))))
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107
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108
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109 ;; The window-config stack is stored as a list in frame property
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110 ;; 'window-config-stack, with the most recent element at the front.
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111 ;; When you pop off an element, the popped off element gets put at the
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112 ;; front of frame property 'window-config-unpop-stack, so you can
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113 ;; retrieve it using unpop-window-configuration.
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114
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115 (defcustom window-config-stack-max 16
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116 "*Maximum size of window configuration stack.
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117 Start discarding off end if it gets this big."
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118 :type 'integer
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119 :group 'windows)
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120
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121 (defun window-config-stack (&optional frame)
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122 (or frame (setq frame (selected-frame)))
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123 (let ((stack (frame-property frame 'window-config-stack)))
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124 (if stack
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125 (set-undoable-stack-max stack window-config-stack-max)
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126 (progn
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127 (setq stack (make-undoable-stack window-config-stack-max))
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128 (set-frame-property frame 'window-config-stack stack)))
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129 stack))
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130
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131 (defun push-window-configuration (&optional config)
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132 "Push the current window configuration onto the window-config stack.
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133 If CONFIG is specified, push it instead of the current window configuration.
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134 Each frame has its own window-config stack."
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135 (interactive)
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136 (let ((wc (or config (current-window-configuration)))
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137 (stack (window-config-stack)))
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138 (if (or (= 0 (undoable-stack-a-length stack))
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139 (not (equal (undoable-stack-a-top stack) wc)))
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140 (undoable-stack-push stack wc))))
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141
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142 (defun pop-window-configuration ()
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143 "Pop the top window configuration off the window-config stack and set it.
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144 Before setting the new window configuration, the current window configuration
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145 is pushed onto the \"unpop\" stack.
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146 `unpop-window-configuration' undoes what this function does.
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147 Each frame has its own window-config and \"unpop\" stack."
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148 (interactive)
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149 (let ((stack (window-config-stack))
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150 (wc (current-window-configuration))
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151 popped)
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152 (condition-case nil
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153 (progn
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154 (setq popped (undoable-stack-pop stack))
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155 (while (equal popped wc)
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156 (setq popped (undoable-stack-pop stack)))
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157 (undoable-stack-push stack wc)
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158 (undoable-stack-undo stack)
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159 (set-window-configuration popped)
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160 popped)
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161 (trunc-stack-bottom
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162 (error "Bottom of window config stack")))))
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163
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164 (defun unpop-window-configuration ()
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165 "Undo the effect of the most recent `pop-window-configuration'.
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166 This does exactly the inverse of what `pop-window-configuration' does:
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167 i.e. it pops a window configuration off of the \"unpop\" stack and
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168 pushes the current window configuration onto the window-config stack.
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169 Each frame has its own window-config and \"unpop\" stack."
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170 (interactive)
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171 (let ((stack (window-config-stack))
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172 (wc (current-window-configuration))
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173 popped)
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174 (condition-case nil
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175 (progn
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176 (setq popped
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177 (progn
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178 (undoable-stack-redo stack)
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179 (undoable-stack-pop stack)))
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180 (while (equal popped wc)
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181 (setq popped
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182 (progn
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183 (undoable-stack-redo stack)
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184 (undoable-stack-pop stack))))
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185 (undoable-stack-push stack wc)
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186 (set-window-configuration popped)
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187 popped)
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188 (trunc-stack-bottom
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189 (error "Top of window config stack")))))
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190
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191
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192 ;;;;;;;;;;;;; display-buffer, moved here from C. Hallelujah.
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193
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442
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194 (make-variable-buffer-local '__buffer-dedicated-frame)
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195
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196 (defun buffer-dedicated-frame (&optional buffer)
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197 "Return the frame dedicated to this BUFFER, or nil if there is none.
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198 No argument or nil as argument means use current buffer as BUFFER."
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199 (let ((buffer (decode-buffer buffer)))
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200 (let ((frame (symbol-value-in-buffer '__buffer-dedicated-frame buffer)))
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201 ;; XEmacs addition: if the frame is dead, silently make it go away.
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202 (when (and (framep frame) (not (frame-live-p frame)))
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203 (with-current-buffer buffer
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204 (setq __buffer-dedicated-frame nil))
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205 (setq frame nil))
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206 frame)))
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207
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208 (defun set-buffer-dedicated-frame (buffer frame)
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209 "For this BUFFER, set the FRAME dedicated to it.
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210 FRAME must be a frame or nil."
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211 (let ((buffer (decode-buffer buffer)))
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212 (and frame
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213 (check-argument-type #'frame-live-p frame))
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214 (with-current-buffer buffer
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215 (setq __buffer-dedicated-frame frame))))
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216
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428
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217 (defvar display-buffer-function nil
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218 "If non-nil, function to call to handle `display-buffer'.
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219 It will receive three args: the same as those to `display-buffer'.")
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220
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221 (defvar pre-display-buffer-function nil
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222 "If non-nil, function that will be called from `display-buffer'
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223 as the first action. It will receive three args: the same as those
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224 to `display-buffer'.
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225 This function may be used to select an appropriate frame for the buffer,
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226 for example. See also the variable `display-buffer-function', which may
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227 be used to completely replace the `display-buffer' function.
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228 If the return value of this function is non-nil, it should be a frame,
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229 and that frame will be used to display the buffer.")
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230
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231 (defcustom pop-up-frames nil
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232 "*Non-nil means `display-buffer' should make a separate frame."
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233 :type 'boolean
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234 :group 'frames)
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235
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236 (defvar pop-up-frame-function nil
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237 "Function to call to handle automatic new frame creation.
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238 It is called with no arguments and should return a newly created frame.
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239
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240 A typical value might be `(lambda () (new-frame pop-up-frame-alist))'
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241 where `pop-up-frame-alist' would hold the default frame parameters.")
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242
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243 (defcustom special-display-buffer-names nil
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244 "*List of buffer names that should have their own special frames.
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245 Displaying a buffer whose name is in this list makes a special frame for it
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246 using `special-display-function'.
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247
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248 An element of the list can be a cons cell instead of just a string.
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249 Then the car should be a buffer name, and the cdr specifies frame
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250 parameters for creating the frame for that buffer.
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251 More precisely, the cdr is passed as the second argument to
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252 the function found in `special-display-function', when making that frame.
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253 See also `special-display-regexps'."
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254 :type '(repeat (choice :value ""
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255 (string :tag "Name")
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256 (cons :menu-tag "Properties"
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257 :value ("" . nil)
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258 (string :tag "Name")
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259 (repeat :tag "Properties"
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260 (group :inline t
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261 (symbol :tag "Property")
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262 (sexp :tag "Value"))))))
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263 :group 'frames)
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264
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265 (defcustom special-display-regexps nil
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266 "*List of regexps saying which buffers should have their own special frames.
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267 If a buffer name matches one of these regexps, it gets its own frame.
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268 Displaying a buffer whose name is in this list makes a special frame for it
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269 using `special-display-function'.
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270
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271 An element of the list can be a cons cell instead of just a string.
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272 Then the car should be the regexp, and the cdr specifies frame
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273 parameters for creating the frame for buffers that match.
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274 More precisely, the cdr is passed as the second argument to
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275 the function found in `special-display-function', when making that frame.
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276 See also `special-display-buffer-names'."
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277 :type '(repeat (choice :value ""
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278 regexp
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279 (cons :menu-tag "Properties"
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280 :value ("" . nil)
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281 regexp
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282 (repeat :tag "Properties"
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283 (group :inline t
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284 (symbol :tag "Property")
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285 (sexp :tag "Value"))))))
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286 :group 'frames)
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287
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288 (defvar special-display-function nil
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289 "Function to call to make a new frame for a special buffer.
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290 It is called with two arguments, the buffer and optional buffer specific
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291 data, and should return a window displaying that buffer.
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292 The default value makes a separate frame for the buffer,
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293 using `special-display-frame-alist' to specify the frame parameters.
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294
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295 A buffer is special if its is listed in `special-display-buffer-names'
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296 or matches a regexp in `special-display-regexps'.")
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297
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298 (defcustom same-window-buffer-names nil
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299 "*List of buffer names that should appear in the selected window.
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300 Displaying one of these buffers using `display-buffer' or `pop-to-buffer'
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301 switches to it in the selected window, rather than making it appear
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302 in some other window.
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303
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304 An element of the list can be a cons cell instead of just a string.
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305 Then the car must be a string, which specifies the buffer name.
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306 This is for compatibility with `special-display-buffer-names';
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307 the cdr of the cons cell is ignored.
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308
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309 See also `same-window-regexps'."
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310 :type '(repeat (string :tag "Name"))
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311 :group 'windows)
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312
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313 (defcustom same-window-regexps nil
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314 "*List of regexps saying which buffers should appear in the selected window.
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315 If a buffer name matches one of these regexps, then displaying it
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316 using `display-buffer' or `pop-to-buffer' switches to it
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317 in the selected window, rather than making it appear in some other window.
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318
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319 An element of the list can be a cons cell instead of just a string.
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320 Then the car must be a string, which specifies the buffer name.
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321 This is for compatibility with `special-display-buffer-names';
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322 the cdr of the cons cell is ignored.
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323
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324 See also `same-window-buffer-names'."
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325 :type '(repeat regexp)
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326 :group 'windows)
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327
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328 (defcustom pop-up-windows t
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329 "*Non-nil means display-buffer should make new windows."
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330 :type 'boolean
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331 :group 'windows)
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332
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333 (defcustom split-height-threshold 500
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334 "*display-buffer would prefer to split the largest window if this large.
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335 If there is only one window, it is split regardless of this value."
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336 :type 'integer
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337 :group 'windows)
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338
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339 (defcustom split-width-threshold 500
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340 "*display-buffer would prefer to split the largest window if this large.
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341 If there is only one window, it is split regardless of this value."
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342 :type 'integer
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343 :group 'windows)
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344
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345 ;; Deiconify the frame containing the window WINDOW, then return WINDOW.
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346
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347 (defun display-buffer-1 (window)
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348 (if (frame-iconified-p (window-frame window))
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349 (make-frame-visible (window-frame window)))
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350 window)
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351
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352 ;; Can you believe that all of this crap was formerly in C?
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353 ;; Praise Jesus that it's not there any more.
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354
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355 (defun display-buffer (buffer &optional not-this-window-p override-frame)
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356 "Make BUFFER appear in some window on the current frame, but don't select it.
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357 BUFFER can be a buffer or a buffer name.
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358 If BUFFER is shown already in some window in the current frame,
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359 just uses that one, unless the window is the selected window and
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360 NOT-THIS-WINDOW-P is non-nil (interactively, with prefix arg).
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361
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362 If BUFFER has a dedicated frame, display on that frame instead of
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363 the current frame, unless OVERRIDE-FRAME is non-nil.
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364
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365 If OVERRIDE-FRAME is non-nil, display on that frame instead of
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366 the current frame (or the dedicated frame).
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367
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368 If `pop-up-windows' is non-nil, always use the
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369 current frame and create a new window regardless of whether the
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370 buffer has a dedicated frame, and regardless of whether
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371 OVERRIDE-FRAME was specified.
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372
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373 If `pop-up-frames' is non-nil, make a new frame if no window shows BUFFER.
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374
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375 Returns the window displaying BUFFER."
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376 (interactive "BDisplay buffer:\nP")
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377
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378 (let ((wconfig (current-window-configuration))
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379 (result
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380 ;; We just simulate a `return' in C. This function is way ugly
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381 ;; and does `returns' all over the place and there's no sense
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382 ;; in trying to rewrite it to be more Lispy.
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383 (catch 'done
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384 (let (window old-frame target-frame explicit-frame)
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385 (setq old-frame (or (last-nonminibuf-frame) (selected-frame)))
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386 (setq buffer (get-buffer buffer))
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387 (check-argument-type 'bufferp buffer)
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388
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389 (setq explicit-frame
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390 (if pre-display-buffer-function
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391 (funcall pre-display-buffer-function buffer
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392 not-this-window-p
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393 override-frame)))
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394
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395 ;; Give the user the ability to completely reimplement
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396 ;; this function via the `display-buffer-function'.
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397 (if display-buffer-function
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398 (throw 'done
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399 (funcall display-buffer-function buffer
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400 not-this-window-p
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401 override-frame)))
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402
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403 ;; If the buffer has a dedicated frame, that takes
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404 ;; precedence over the current frame, and over what the
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405 ;; pre-display-buffer-function did.
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406 (let ((dedi (buffer-dedicated-frame buffer)))
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407 (if (frame-live-p dedi) (setq explicit-frame dedi)))
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408
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409 ;; if override-frame is supplied, that takes precedence over
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410 ;; everything. This is gonna look bad if the
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411 ;; pre-display-buffer-function raised some other frame
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412 ;; already.
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413 (if override-frame
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414 (progn
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415 (check-argument-type 'frame-live-p override-frame)
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416 (setq explicit-frame override-frame)))
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417
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418 (setq target-frame
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419 (or explicit-frame
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420 (last-nonminibuf-frame)
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421 (selected-frame)))
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422
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423 ;; If we have switched frames, then set not-this-window-p
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424 ;; to false. Switching frames means that selected-window
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425 ;; is no longer the same as it was on entry -- it's the
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426 ;; selected-window of target_frame instead of old_frame,
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427 ;; so it's a fine candidate for display.
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428 (if (not (eq old-frame target-frame))
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429 (setq not-this-window-p nil))
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430
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431 ;; if it's in the selected window, and that's ok, then we're done.
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432 (if (and (not not-this-window-p)
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433 (eq buffer (window-buffer (selected-window))))
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434 (throw 'done (display-buffer-1 (selected-window))))
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435
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436 ;; See if the user has specified this buffer should appear
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437 ;; in the selected window.
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438
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439 (if not-this-window-p
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440 nil
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441
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442 (if (or (member (buffer-name buffer) same-window-buffer-names)
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443 (assoc (buffer-name buffer) same-window-buffer-names))
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444 (progn
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445 (switch-to-buffer buffer)
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446 (throw 'done (display-buffer-1 (selected-window)))))
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447
|
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448 (let ((tem same-window-regexps))
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449 (while tem
|
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450 (let ((car (car tem)))
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451 (if (or
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452 (and (stringp car)
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453 (string-match car (buffer-name buffer)))
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454 (and (consp car) (stringp (car car))
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455 (string-match (car car) (buffer-name buffer))))
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456 (progn
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457 (switch-to-buffer buffer)
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458 (throw 'done (display-buffer-1
|
|
|
459 (selected-window))))))
|
|
|
460 (setq tem (cdr tem)))))
|
|
|
461
|
|
|
462 ;; If pop-up-frames, look for a window showing BUFFER on
|
|
|
463 ;; any visible or iconified frame. Otherwise search only
|
|
|
464 ;; the current frame.
|
|
|
465 (if (and (not explicit-frame)
|
|
|
466 (or pop-up-frames (not (last-nonminibuf-frame))))
|
|
|
467 (setq target-frame 0))
|
|
|
468
|
|
|
469 ;; Otherwise, find some window that it's already in, and
|
|
|
470 ;; return that, unless that window is the selected window
|
|
|
471 ;; and that isn't ok. What a contorted mess!
|
|
|
472 (setq window (or (if (not explicit-frame)
|
|
|
473 ;; search the selected frame
|
|
|
474 ;; first if the user didn't
|
|
|
475 ;; specify an explicit frame.
|
|
|
476 (get-buffer-window buffer nil))
|
|
|
477 (get-buffer-window buffer target-frame)))
|
|
|
478 (if (and window
|
|
|
479 (or (not not-this-window-p)
|
|
|
480 (not (eq window (selected-window)))))
|
|
|
481 (throw 'done (display-buffer-1 window)))
|
|
|
482
|
|
|
483 ;; Certain buffer names get special handling.
|
|
|
484 (if special-display-function
|
|
|
485 (progn
|
|
|
486 (if (member (buffer-name buffer)
|
|
|
487 special-display-buffer-names)
|
|
|
488 (throw 'done (funcall special-display-function buffer)))
|
|
|
489
|
|
|
490 (let ((tem (assoc (buffer-name buffer)
|
|
|
491 special-display-buffer-names)))
|
|
|
492 (if tem
|
|
|
493 (throw 'done (funcall special-display-function
|
|
|
494 buffer (cdr tem)))))
|
|
|
495
|
|
|
496 (let ((tem special-display-regexps))
|
|
|
497 (while tem
|
|
|
498 (let ((car (car tem)))
|
|
|
499 (if (and (stringp car)
|
|
|
500 (string-match car (buffer-name buffer)))
|
|
|
501 (throw 'done
|
|
|
502 (funcall special-display-function buffer)))
|
|
|
503 (if (and (consp car)
|
|
|
504 (stringp (car car))
|
|
|
505 (string-match (car car)
|
|
|
506 (buffer-name buffer)))
|
|
|
507 (throw 'done (funcall
|
|
|
508 special-display-function buffer
|
|
|
509 (cdr car)))))
|
|
|
510 (setq tem (cdr tem))))))
|
|
|
511
|
|
|
512 ;; If there are no frames open that have more than a minibuffer,
|
|
|
513 ;; we need to create a new frame.
|
|
|
514 (if (or pop-up-frames
|
|
|
515 (null (last-nonminibuf-frame)))
|
|
|
516 (progn
|
|
|
517 (setq window (frame-selected-window
|
|
|
518 (funcall pop-up-frame-function)))
|
|
|
519 (set-window-buffer window buffer)
|
|
|
520 (throw 'done (display-buffer-1 window))))
|
|
|
521
|
|
|
522 ;; Otherwise, make it be in some window, splitting if
|
|
|
523 ;; appropriate/possible. Do not split a window if we are
|
|
|
524 ;; displaying the buffer in a different frame than that which
|
|
|
525 ;; was current when we were called. (It is already in a
|
|
|
526 ;; different window by virtue of being in another frame.)
|
|
|
527 (if (or (and pop-up-windows (eq target-frame old-frame))
|
|
|
528 (eq 'only (frame-property (selected-frame) 'minibuffer))
|
|
|
529 ;; If the current frame is a special display frame,
|
|
|
530 ;; don't try to reuse its windows.
|
|
|
531 (window-dedicated-p (frame-root-window (selected-frame))))
|
|
|
532 (progn
|
|
|
533 (if (eq 'only (frame-property (selected-frame) 'minibuffer))
|
|
|
534 (setq target-frame (last-nonminibuf-frame)))
|
|
|
535
|
|
|
536 ;; Don't try to create a window if would get an error with
|
|
|
537 ;; height.
|
|
|
538 (if (< split-height-threshold (* 2 window-min-height))
|
|
|
539 (setq split-height-threshold (* 2 window-min-height)))
|
|
|
540
|
|
|
541 ;; Same with width.
|
|
|
542 (if (< split-width-threshold (* 2 window-min-width))
|
|
|
543 (setq split-width-threshold (* 2 window-min-width)))
|
|
|
544
|
|
|
545 ;; If the frame we would try to split cannot be split,
|
|
|
546 ;; try other frames.
|
|
|
547 (if (frame-property (if (null target-frame)
|
|
|
548 (selected-frame)
|
|
|
549 (last-nonminibuf-frame))
|
|
|
550 'unsplittable)
|
|
|
551 (setq window
|
|
|
552 ;; Try visible frames first.
|
|
|
553 (or (get-largest-window 'visible)
|
|
|
554 ;; If that didn't work, try iconified frames.
|
|
|
555 (get-largest-window 0)
|
|
|
556 (get-largest-window t)))
|
|
|
557 (setq window (get-largest-window target-frame)))
|
|
|
558
|
|
|
559 ;; If we got a tall enough full-width window that
|
|
|
560 ;; can be split, split it.
|
|
|
561 (if (and window
|
|
|
562 (not (frame-property (window-frame window)
|
|
|
563 'unsplittable))
|
|
|
564 (>= (window-height window) split-height-threshold)
|
|
|
565 (or (>= (window-width window)
|
|
|
566 split-width-threshold)
|
|
|
567 (and (window-leftmost-p window)
|
|
|
568 (window-rightmost-p window))))
|
|
|
569 (setq window (split-window window))
|
|
|
570 (let (upper
|
|
|
571 ;; lower
|
|
|
572 other)
|
|
|
573 (setq window (get-lru-window target-frame))
|
|
|
574 ;; If the LRU window is selected, and big enough,
|
|
|
575 ;; and can be split, split it.
|
|
|
576 (if (and window
|
|
|
577 (not (frame-property (window-frame window)
|
|
|
578 'unsplittable))
|
|
|
579 (or (eq window (selected-window))
|
|
|
580 (not (window-parent window)))
|
|
|
581 (>= (window-height window)
|
|
|
582 (* 2 window-min-height)))
|
|
|
583 (setq window (split-window window)))
|
|
|
584 ;; If get-lru-window returned nil, try other approaches.
|
|
|
585 ;; Try visible frames first.
|
|
|
586 (or window
|
|
|
587 (setq window (or (get-largest-window 'visible)
|
|
|
588 ;; If that didn't work, try
|
|
|
589 ;; iconified frames.
|
|
|
590 (get-largest-window 0)
|
|
|
591 ;; Try invisible frames.
|
|
|
592 (get-largest-window t)
|
|
|
593 ;; As a last resort, make
|
|
|
594 ;; a new frame.
|
|
|
595 (frame-selected-window
|
|
|
596 (funcall
|
|
|
597 pop-up-frame-function)))))
|
|
|
598 ;; If window appears above or below another,
|
|
|
599 ;; even out their heights.
|
|
|
600 (if (window-previous-child window)
|
|
|
601 (setq other (window-previous-child window)
|
|
|
602 ;; lower window
|
|
|
603 upper other))
|
|
|
604 (if (window-next-child window)
|
|
|
605 (setq other (window-next-child window)
|
|
|
606 ;; lower other
|
|
|
607 upper window))
|
|
|
608 ;; Check that OTHER and WINDOW are vertically arrayed.
|
|
|
609 (if (and other
|
|
|
610 (not (= (nth 1 (window-pixel-edges other))
|
|
|
611 (nth 1 (window-pixel-edges window))))
|
|
|
612 (> (window-pixel-height other)
|
|
|
613 (window-pixel-height window)))
|
|
|
614 (enlarge-window (- (/ (+ (window-height other)
|
|
|
615 (window-height window))
|
|
|
616 2)
|
|
|
617 (window-height upper))
|
|
|
618 nil upper)))))
|
|
|
619
|
|
|
620 (setq window (get-lru-window target-frame)))
|
|
|
621
|
|
|
622 ;; Bring the window's previous buffer to the top of the MRU chain.
|
|
|
623 (if (window-buffer window)
|
|
|
624 (save-excursion
|
|
|
625 (save-selected-window
|
|
|
626 (select-window window)
|
|
|
627 (record-buffer (window-buffer window)))))
|
|
|
628
|
|
|
629 (set-window-buffer window buffer)
|
|
|
630
|
|
|
631 (display-buffer-1 window)))))
|
|
|
632 (or (equal wconfig (current-window-configuration))
|
|
|
633 (push-window-configuration wconfig))
|
|
|
634 result))
|
|
|
635
|
|
|
636 ;;; window-xemacs.el ends here
|
