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[Emacs-diffs] emacs etc/NEWS lisp/ChangeLog lisp/term/xterm.el
From: |
Dan Nicolaescu |
Subject: |
[Emacs-diffs] emacs etc/NEWS lisp/ChangeLog lisp/term/xterm.el |
Date: |
Mon, 07 Dec 2009 06:31:41 +0000 |
CVSROOT: /cvsroot/emacs
Module name: emacs
Changes by: Dan Nicolaescu <dann> 09/12/07 06:31:40
Modified files:
etc : NEWS
lisp : ChangeLog
lisp/term : xterm.el
Log message:
Get the background mode from the terminal for xterm, and set
faces accordingly.
* term/xterm.el (xterm-set-background-mode): New function.
(terminal-init-xterm): Use it in case xterm supports background
color queries. Recompute faces after getting the background
color.
CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/emacs/etc/NEWS?cvsroot=emacs&r1=1.2142&r2=1.2143
http://cvs.savannah.gnu.org/viewcvs/emacs/lisp/ChangeLog?cvsroot=emacs&r1=1.16851&r2=1.16852
http://cvs.savannah.gnu.org/viewcvs/emacs/lisp/term/xterm.el?cvsroot=emacs&r1=1.62&r2=1.63
Patches:
Index: etc/NEWS
===================================================================
RCS file: /cvsroot/emacs/emacs/etc/NEWS,v
retrieving revision 1.2142
retrieving revision 1.2143
diff -u -b -r1.2142 -r1.2143
--- etc/NEWS 6 Dec 2009 22:36:11 -0000 1.2142
+++ etc/NEWS 7 Dec 2009 06:30:30 -0000 1.2143
@@ -339,6 +339,11 @@
and let commands run under that user permissions. It works even when
`default-directory' is already remote.
+*** When running in a new enough xterm (newer than version 242), emacs
+asks xterm what the background color is and it sets up faces
+accordingly for a dark background if needed (the current default is to
+consider the background light).
+
* New Modes and Packages in Emacs 23.2
Index: lisp/ChangeLog
===================================================================
RCS file: /cvsroot/emacs/emacs/lisp/ChangeLog,v
retrieving revision 1.16851
retrieving revision 1.16852
diff -u -b -r1.16851 -r1.16852
--- lisp/ChangeLog 7 Dec 2009 06:21:27 -0000 1.16851
+++ lisp/ChangeLog 7 Dec 2009 06:31:35 -0000 1.16852
@@ -1,3 +1,12 @@
+2009-12-07 Dan Nicolaescu <address@hidden>
+
+ Get the background mode from the terminal for xterm, and set
+ faces accordingly.
+ * term/xterm.el (xterm-set-background-mode): New function.
+ (terminal-init-xterm): Use it in case xterm supports background
+ color queries. Recompute faces after getting the background
+ color.
+
2009-12-07 Ulrich Mueller <address@hidden>
* emacs-lisp/bytecomp.el (byte-compile-insert-header): Put the version
Index: lisp/term/xterm.el
===================================================================
RCS file: /cvsroot/emacs/emacs/lisp/term/xterm.el,v
retrieving revision 1.62
retrieving revision 1.63
diff -u -b -r1.62 -r1.63
--- lisp/term/xterm.el 5 Jan 2009 03:23:59 -0000 1.62
+++ lisp/term/xterm.el 7 Dec 2009 06:31:39 -0000 1.63
@@ -462,8 +462,6 @@
(set-keymap-parent input-decode-map map)))
(xterm-register-default-colors)
- ;; This recomputes all the default faces given the colors we've just set
up.
- (tty-set-up-initial-frame-faces)
;; Try to turn on the modifyOtherKeys feature on modern xterms.
;; When it is turned on many more key bindings work: things like
@@ -472,7 +470,8 @@
;; modifyOtherKeys. At this time only xterm does.
(let ((coding-system-for-read 'binary)
(chr nil)
- (str nil))
+ (str nil)
+ version)
;; Pending input can be mistakenly returned by the calls to
;; read-event below. Discard it.
(discard-input)
@@ -491,11 +490,26 @@
(while (not (equal (setq chr (read-event nil nil 2)) ?c))
(setq str (concat str (string chr))))
(when (string-match ">0;\\([0-9]+\\);0" str)
+ (setq version (string-to-number
+ (substring str (match-beginning 1) (match-end 1))))
+ ;; xterm version 242 supports reporting the background
+ ;; color, maybe earlier versions do too...
+ (when (>= version 242)
+ (send-string-to-terminal "\e]11;?\e\\")
+ (when (equal (read-event nil nil 2) ?\e)
+ (when (equal (read-event nil nil 2) ?\])
+ (setq str "")
+ (while (not (equal (setq chr (read-event nil nil 2)) ?\\))
+ (setq str (concat str (string chr))))
+ (when (string-match
"11;rgb:\\([a-f0-9]+\\)/\\([a-f0-9]+\\)/\\([a-f0-9]+\\)" str)
+ (xterm-set-background-mode
+ (string-to-number (match-string 1 str) 16)
+ (string-to-number (match-string 2 str) 16)
+ (string-to-number (match-string 3 str) 16))))))
;; NUMBER2 is the xterm version number, look for something
;; greater than 216, the version when modifyOtherKeys was
;; introduced.
- (when (>= (string-to-number
- (substring str (match-beginning 1) (match-end 1))) 216)
+ (when (>= version 216)
;; Make sure that the modifyOtherKeys state is restored when
;; suspending, resuming and exiting.
(add-hook 'suspend-hook 'xterm-turn-off-modify-other-keys)
@@ -508,6 +522,9 @@
xterm-modify-other-keys-terminal-list)
(xterm-turn-on-modify-other-keys))))))
+ ;; This recomputes all the default faces given the colors we've just set
up.
+ (tty-set-up-initial-frame-faces)
+
(run-hooks 'terminal-init-xterm-hook))
;; Set up colors, for those versions of xterm that support it.
@@ -649,5 +666,11 @@
(delq terminal xterm-modify-other-keys-terminal-list))
(send-string-to-terminal "\e[>4m" terminal)))
+(defun xterm-set-background-mode (redc greenc bluec)
+ ;; Use the heuristic in `frame-set-background-mode' to decide if a
+ ;; frame is dark.
+ (when (< (+ redc greenc bluec) (* .6 (+ 65535 65535 65535)))
+ (set-terminal-parameter nil 'background-mode 'dark)))
+
;; arch-tag: 12e7ebdd-1e6c-4b25-b0f9-35ace25e855a
;;; xterm.el ends here
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