* bug#4234: allow xterm to detect the background color @ 2009-08-22 17:15 ` Dan Nicolaescu 2009-08-22 18:43 ` Andreas Schwab 2009-12-20 16:01 ` bug#4234: marked as done (allow xterm to detect the background color) Emacs bug Tracking System 0 siblings, 2 replies; 3+ messages in thread From: Dan Nicolaescu @ 2009-08-22 17:15 UTC (permalink / raw) To: bug-gnu-emacs emacs/emacsclient -nw running in an xterm set the frame background mode to 'light. Not all users use the default white background, so they get the wrong face colors. Newer xterms can tell what the background color is (see http://permalink.gmane.org/gmane.emacs.devel/111270) This patch implements reads the background color from xterm (iff it supports the feature) and sets the background mode accordingly. --- xterm.el.~1.62.~ 2009-01-08 14:24:21.000000000 -0800 +++ xterm.el 2009-08-22 10:12:38.000000000 -0700 @@ -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) @@ -494,8 +493,23 @@ ;; 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) + (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)))))) + (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 @@ versions of xterm." (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 ^ permalink raw reply [flat|nested] 3+ messages in thread
* bug#4234: allow xterm to detect the background color 2009-08-22 17:15 ` bug#4234: allow xterm to detect the background color Dan Nicolaescu @ 2009-08-22 18:43 ` Andreas Schwab 2009-12-20 16:01 ` bug#4234: marked as done (allow xterm to detect the background color) Emacs bug Tracking System 1 sibling, 0 replies; 3+ messages in thread From: Andreas Schwab @ 2009-08-22 18:43 UTC (permalink / raw) To: Dan Nicolaescu; +Cc: bug-gnu-emacs, 4234 Dan Nicolaescu <dann@ics.uci.edu> writes: > @@ -494,8 +493,23 @@ > ;; NUMBER2 is the xterm version number, look for something > ;; greater than 216, the version when modifyOtherKeys was > ;; introduced. You should move the comment down to where this version number is actually tested. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different." ^ permalink raw reply [flat|nested] 3+ messages in thread
* bug#4234: marked as done (allow xterm to detect the background color) 2009-08-22 17:15 ` bug#4234: allow xterm to detect the background color Dan Nicolaescu 2009-08-22 18:43 ` Andreas Schwab @ 2009-12-20 16:01 ` Emacs bug Tracking System 1 sibling, 0 replies; 3+ messages in thread From: Emacs bug Tracking System @ 2009-12-20 16:01 UTC (permalink / raw) To: Dan Nicolaescu [-- Attachment #1: Type: text/plain, Size: 869 bytes --] Your message dated Sun, 20 Dec 2009 08:00:07 -0800 (PST) with message-id <200912201600.nBKG073w021776@godzilla.ics.uci.edu> and subject line Re: bug#4234: allow xterm to detect the background color has caused the Emacs bug report #4234, regarding allow xterm to detect the background color to be marked as done. This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact bug-gnu-emacs@gnu.org immediately.) -- 4234: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=4234 Emacs Bug Tracking System Contact bug-gnu-emacs@gnu.org with problems [-- Attachment #2: Type: message/rfc822, Size: 5837 bytes --] From: Dan Nicolaescu <dann@ics.uci.edu> To: bug-gnu-emacs <bug-gnu-emacs@gnu.org> Subject: allow xterm to detect the background color Date: Sat, 22 Aug 2009 10:15:12 -0700 (PDT) Message-ID: <200908221715.n7MHFCVA002498@godzilla.ics.uci.edu> emacs/emacsclient -nw running in an xterm set the frame background mode to 'light. Not all users use the default white background, so they get the wrong face colors. Newer xterms can tell what the background color is (see http://permalink.gmane.org/gmane.emacs.devel/111270) This patch implements reads the background color from xterm (iff it supports the feature) and sets the background mode accordingly. --- xterm.el.~1.62.~ 2009-01-08 14:24:21.000000000 -0800 +++ xterm.el 2009-08-22 10:12:38.000000000 -0700 @@ -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) @@ -494,8 +493,23 @@ ;; 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) + (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)))))) + (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 @@ versions of xterm." (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 [-- Attachment #3: Type: message/rfc822, Size: 2660 bytes --] From: Dan Nicolaescu <dann@ics.uci.edu> To: 4234-done@emacsbugs.donarmstrong.com Subject: Re: bug#4234: allow xterm to detect the background color Date: Sun, 20 Dec 2009 08:00:07 -0800 (PST) Message-ID: <200912201600.nBKG073w021776@godzilla.ics.uci.edu> Patch is in. ^ permalink raw reply [flat|nested] 3+ messages in thread
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2009-08-22 17:15 ` bug#4234: allow xterm to detect the background color Dan Nicolaescu
2009-08-22 18:43 ` Andreas Schwab
2009-12-20 16:01 ` bug#4234: marked as done (allow xterm to detect the background color) Emacs bug Tracking System
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