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Call XKeysymToString() much less, it leaks. src/ChangeLog addition: 2012-01-08 Aidan Kehoe <kehoea@parhasard.net> * device-x.c: * device-x.c (syms_of_device_x): Move #'x-keysym-on-keyboard{,-sans-modifiers}-p to Lisp, the hash table no longer stores the X keysyms, so we need to manipulate any strings we have been handed. * event-Xt.c (x_has_keysym): Don't call XKeysymToString() here, it leaks; trust x_keysym_to_emacs_keysym() instead. * event-Xt.c (x_keysym_to_emacs_keysym): No longer leak when looking up the strings for keysyms of the form UABCD. lisp/ChangeLog addition: 2012-01-08 Aidan Kehoe <kehoea@parhasard.net> * x-init.el: * x-init.el (pseudo-canonicalize-keysym): New. * x-init.el: Move #'x-keysym-on-keyboard-sans-modifiers-p, #'x-keysym-on-keyboard-p here from device-x.c, some string manipulation it now needs to do is far easier in Lisp. * x-win-xfree86.el: * x-win-xfree86.el (x-win-init-xfree86): No longer call #'x-keysym-on-keyboard{,-sans-modifiers}-p, implement it ourselves cheaply.
author Aidan Kehoe <kehoea@parhasard.net>
date Sun, 08 Jan 2012 20:41:37 +0000
parents 071b810ceb18
children
line wrap: on
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;;; mule-x-init.el --- initialization code for X Windows under MULE -*- coding: iso-2022-7bit; -*-
;; Copyright (C) 1994 Free Software Foundation, Inc.
;; Copyright (C) 1996, 2002 Ben Wing <ben@xemacs.org>

;; Author: various
;; Keywords: mule X11

;; This file is part of XEmacs.

;; XEmacs 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 3 of the License, or (at your
;; option) any later version.

;; XEmacs 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 XEmacs.  If not, see <http://www.gnu.org/licenses/>.

;;; Commentary:

;;; Code:

;;; Work around what is arguably a Sun CDE bug.

;; #### This is unused, apparently.
(defun x-use-halfwidth-roman-font (fullwidth-charset roman-registry)
  "Maybe set charset registry of the 'ascii charset to ROMAN-REGISTRY.

Do this only if:
 - the current display is an X device
 - the displayed width of FULLWIDTH-CHARSET is twice the displayed
   width of the 'ascii charset, but only when using ROMAN-REGISTRY.

Traditionally, Asian characters have been displayed so that they
occupy exactly twice the screen space of ASCII (`halfwidth')
characters.  On many systems, e.g. Sun CDE systems, this can only be
achieved by using a national variant roman font to display ASCII."
  (labels ((charset-font-width (charset)
             (font-instance-width
              (face-font-instance 'default (selected-device) charset)))
	 
           (twice-as-wide (cs1 cs2)
             (let ((width1 (charset-font-width cs1))
                   (width2 (charset-font-width cs2)))
               (and width1 width2 (eq (+ width1 width1) width2)))))
    (declare (inline charset-font-width))
    (when (eq 'x (device-type))
      (let ((original-registries (charset-registries 'ascii)))
        (condition-case nil
            (unless (twice-as-wide 'ascii fullwidth-charset)
              (set-charset-registries 'ascii (vector roman-registry))
              (unless (twice-as-wide 'ascii fullwidth-charset)
                ;; Restore if roman-registry didn't help
                (set-charset-registries 'ascii original-registries)))
          (error (set-charset-registries 'ascii original-registries)))))))

;;;;