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From: Mark Walters <markwalters1009@gmail.com>
To: notmuch@notmuchmail.org,
	amdragon@mit.edu
Subject: [Patch v3 4/8] emacs: tag: add customize for deleted/added tag
 formats
Date: Wed, 12 Mar 2014 04:09:53 +0000
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Add customize options for deleted/added tag formats.  These are not
used yet but will be later in the series.

We switch to using `notmuch-apply-face' rather than `propertize' in
the defcustom for faces so that the faces for deleted/added tags add
to the default face attributes for the tag.

We special case deleting the unread tag as that tag is a strong visual
cue and we don't need that cue when we are just saying it used to be
unread. Thus, we revert to the normal tag face with strikethough for
deleted unread tags.
---
 emacs/notmuch-tag.el |   37 ++++++++++++++++++++++++++++++++++++-
 1 files changed, 36 insertions(+), 1 deletions(-)

diff --git a/emacs/notmuch-tag.el b/emacs/notmuch-tag.el
index a4dea39..4698856 100644
--- a/emacs/notmuch-tag.el
+++ b/emacs/notmuch-tag.el
@@ -39,7 +39,7 @@ (define-widget 'notmuch-tag-format-type 'lazy
 			    (string :tag "Display as")
 			    (list :tag "Face" :extra-offset -4
 				  (const :format "" :inline t
-					 (propertize tag 'face))
+					 (notmuch-apply-face tag))
 				  (list :format "%v"
 					(const :format "" quote)
 					custom-face-edit))
@@ -89,6 +89,41 @@ (defcustom notmuch-tag-formats
   :group 'notmuch-show
   :type 'notmuch-tag-format-type)
 
+(defcustom notmuch-tag-deleted-formats
+  '(("unread" (notmuch-apply-face "unread"
+		      (if (display-supports-face-attributes-p '(:strike-through "red"))
+			  '(:strike-through "red")
+			'(:inverse-video t))))
+    (".*" (notmuch-apply-face tag
+		      (if (display-supports-face-attributes-p '(:strike-through "red"))
+			  '(:strike-through "red")
+			'(:inverse-video t)))))
+  "Custom formats for tags when deleted.
+
+For deleted tags the formats in `notmuch-tag-formats` are applied
+first and then these formats are applied on top.
+
+By default this shows deleted tags with strike-through in red,
+unless strike-through is not available (e.g., emacs is running in
+a terminal) in which case it uses inverse video. To hide deleted
+tags completely set this to
+  '((\".*\" nil))
+
+See `notmuch-tag-formats' for full documentation."
+  :group 'notmuch-show
+  :type 'notmuch-tag-format-type)
+
+(defcustom notmuch-tag-added-formats
+  '((".*" (notmuch-apply-face tag '(:underline "green"))))
+  "Custom formats for tags when added.
+
+For added tags the formats in `notmuch-tag-formats` are applied
+first and then these formats are applied on top.
+
+See `notmuch-tag-formats' for full documentation."
+  :group 'notmuch-show
+  :type 'notmuch-tag-format-type)
+
 (defun notmuch-tag-format-image-data (tag data)
   "Replace TAG with image DATA, if available.
 
-- 
1.7.9.1