From: Adam Porter <adam@alphapapa.net>
To: emacs-devel@gnu.org
Subject: [PATCH] tab-line-alternate-colors
Date: Sun, 13 Dec 2020 00:04:57 -0600 [thread overview]
Message-ID: <87360autpy.fsf@alphapapa.net> (raw)
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Hi,
This patch adds a new option and face which makes inactive tab-line tabs display in alternating colors, which makes them easier to distinguish between. Assuming that the idea is acceptable, please let me know if any further changes to the patch are required.
Thanks,
Adam
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From d1bebe1441f728b6da6bd44bc2a78a943594dafe Mon Sep 17 00:00:00 2001
From: Adam Porter <adam@alphapapa.net>
Date: Sun, 13 Dec 2020 05:54:28 +0000
Subject: [PATCH] New option `tab-line-alternate-colors` and associated face
* lisp/tab-line.el:
(tab-line-alternate-colors): New option.
(tab-line-tab-inactive-alternate): New face.
(tab-line-format-template): Use them.
---
lisp/tab-line.el | 34 ++++++++++++++++++++++++++++------
1 file changed, 28 insertions(+), 6 deletions(-)
diff --git a/lisp/tab-line.el b/lisp/tab-line.el
index 46bf89f14e..b8fcb737b9 100644
--- a/lisp/tab-line.el
+++ b/lisp/tab-line.el
@@ -35,6 +35,14 @@ tab-line
:group 'convenience
:version "27.1")
+(defcustom tab-line-alternate-colors t
+ "Alternate background colors of inactive tabs.
+When non-nil, alternating tabs use the face
+`tab-line-tab-inactive-alternate'."
+ :type 'boolean
+ :group 'tab-line
+ :version "28.1")
+
(defgroup tab-line-faces '((tab-line custom-face)) ; tab-line is defined in faces.el
"Faces used in the tab line."
:group 'tab-line
@@ -63,6 +71,14 @@ tab-line-tab-inactive
:version "27.1"
:group 'tab-line-faces)
+(defface tab-line-tab-inactive-alternate
+ (let ((mode-line-bg (face-background 'mode-line nil t)))
+ `((t (:inherit tab-line-tab-inactive :background ,mode-line-bg))))
+ "Alternate face for inactive tab-line tabs.
+Used on alternating tabs when `tab-line-alternate-colors' is non-nil."
+ :version "28.1"
+ :group 'tab-line-faces)
+
(defface tab-line-tab-current
'((default
:inherit tab-line-tab)
@@ -403,6 +419,7 @@ tab-line-format-template
(let* ((selected-buffer (window-buffer))
(separator (or tab-line-separator (if window-system " " "|")))
(hscroll (window-parameter nil 'tab-line-hscroll))
+ (tab-number 0)
(strings
(mapcar
(lambda (tab)
@@ -412,7 +429,16 @@ tab-line-format-template
(cdr (assq 'selected tab))))
(name (if buffer-p
(funcall tab-line-tab-name-function tab tabs)
- (cdr (assq 'name tab)))))
+ (cdr (assq 'name tab))))
+ (face (cond (selected-p
+ (if (eq (selected-window) (old-selected-window))
+ 'tab-line-tab-current
+ 'tab-line-tab))
+ ((and tab-line-alternate-colors
+ (cl-evenp (cl-incf tab-number)))
+ 'tab-line-tab-inactive-alternate)
+ (t
+ 'tab-line-tab-inactive))))
(concat
separator
(apply 'propertize
@@ -425,11 +451,7 @@ tab-line-format-template
`(
tab ,tab
,@(if selected-p '(selected t))
- face ,(if selected-p
- (if (eq (selected-window) (old-selected-window))
- 'tab-line-tab-current
- 'tab-line-tab)
- 'tab-line-tab-inactive)
+ face ,face
mouse-face tab-line-highlight)))))
tabs))
(hscroll-data (tab-line-auto-hscroll strings hscroll)))
--
2.20.1
next reply other threads:[~2020-12-13 6:04 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-13 6:04 Adam Porter [this message]
2020-12-13 6:17 ` [PATCH] tab-line-alternate-colors Adam Porter
2020-12-13 8:45 ` Juri Linkov
2020-12-13 10:06 ` Adam Porter
2020-12-13 11:13 ` Adam Porter
2020-12-13 15:21 ` Eli Zaretskii
2020-12-14 2:17 ` Adam Porter
2020-12-14 15:34 ` Eli Zaretskii
2020-12-16 2:58 ` Adam Porter
2020-12-16 15:41 ` Eli Zaretskii
2020-12-13 21:25 ` Juri Linkov
2020-12-14 4:33 ` Adam Porter
2020-12-14 9:10 ` Juri Linkov
2020-12-14 10:05 ` Adam Porter
2020-12-14 19:37 ` Juri Linkov
2020-12-16 3:24 ` Adam Porter
2020-12-16 3:55 ` Adam Porter
2020-12-16 9:03 ` Juri Linkov
2020-12-16 10:26 ` Adam Porter
2020-12-16 20:46 ` Juri Linkov
2020-12-18 3:55 ` Adam Porter
2020-12-23 21:07 ` Juri Linkov
2020-12-24 11:26 ` Adam Porter
2020-12-14 9:14 ` Adam Porter
2020-12-14 19:33 ` Juri Linkov
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