[gnus git] branch master updated: m0-5-127-g5c28209 =1= Use combining faces for highlighting.

       via  5c28209571b30b445cbbbc1bfb92b72d8a5914a3 (commit)
      from  f6b456bf14e4638970fbe61de6be8ccd525b0b5a (commit)


- Log -----------------------------------------------------------------
commit 5c28209571b30b445cbbbc1bfb92b72d8a5914a3
Author: Lars Ingebrigtsen <[email protected]>
Date:   Thu Sep 6 18:33:20 2012 +0200

    Use combining faces for highlighting.
    
    This allows people to define their own faces, yet have highlighting
    based on readedness (etc.) to take place.
    
    * gnus-salt.el (gnus-tree-highlight-node): Ditto.
    
    * gnus-sum.el (gnus-summary-highlight-line): Ditto.
    
    * gnus-group.el (gnus-group-highlight-line): Use combining faces.
    
    * gnus-compat.el: Define compat function `add-face' from Wolfgang
    Jenkner.
    
    * gnus-util.el
    (gnus-put-text-property-excluding-characters-with-faces): Removed.

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 8187f82..44a9b46 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,17 @@
+2012-09-06  Lars Ingebrigtsen  <[email protected]>
+
+	* gnus-util.el
+	(gnus-put-text-property-excluding-characters-with-faces): Removed.
+
+	* gnus-compat.el: Define compat function `add-face' from Wolfgang
+	Jenkner.
+
+	* gnus-group.el (gnus-group-highlight-line): Use combining faces.
+
+	* gnus-sum.el (gnus-summary-highlight-line): Ditto.
+
+	* gnus-salt.el (gnus-tree-highlight-node): Ditto.
+
 2012-09-06  Katsumi Yamaoka  <[email protected]>
 
 	* gnus-score.el (gnus-score-decode-text-parts): Use #' for
diff --git a/lisp/gnus-compat.el b/lisp/gnus-compat.el
index 2b25e45..3241cd1 100644
--- a/lisp/gnus-compat.el
+++ b/lisp/gnus-compat.el
@@ -104,6 +104,24 @@ TRASH is ignored."
     (and (boundp var)
 	 (symbol-value var))))
 
+
+;; Emacs less than 24.3
+(unless (fboundp 'add-face)
+  (defun add-face (beg end face)
+    "Combine FACE BEG and END."
+    (let ((b beg))
+      (while (< b end)
+	(let ((oldval (get-text-property b 'face)))
+	  (put-text-property
+	   b (setq b (next-single-property-change b 'face nil end))
+	   'face (cond ((null oldval)
+			face)
+		       ((and (consp oldval)
+			     (not (keywordp (car oldval))))
+			(cons face oldval))
+		       (t
+			(list face oldval)))))))))
+
 (provide 'gnus-compat)
 
 ;; gnus-compat.el ends here
diff --git a/lisp/gnus-group.el b/lisp/gnus-group.el
index dcccdd8..11ba1b2 100644
--- a/lisp/gnus-group.el
+++ b/lisp/gnus-group.el
@@ -1669,9 +1669,7 @@ and ends at END."
                       gnus-group-highlight))))
     (unless (eq face (get-text-property beg 'face))
       (let ((inhibit-read-only t))
-        (gnus-put-text-property-excluding-characters-with-faces
-         beg end 'face
-         (if (boundp face) (symbol-value face) face)))
+        (add-face beg end (if (boundp face) (symbol-value face) face)))
       (gnus-extent-start-open beg))))
 
 (defun gnus-group-get-icon (group)
diff --git a/lisp/gnus-salt.el b/lisp/gnus-salt.el
index 760a7a0..87a1202 100644
--- a/lisp/gnus-salt.el
+++ b/lisp/gnus-salt.el
@@ -660,9 +660,7 @@ Two predefined functions are available:
 		    (not (eval (caar list))))
 	  (setq list (cdr list)))))
     (unless (eq (setq face (cdar list)) (get-text-property beg 'face))
-      (gnus-put-text-property-excluding-characters-with-faces
-       beg end 'face
-       (if (boundp face) (symbol-value face) face)))))
+      (add-face beg end (if (boundp face) (symbol-value face) face)))))
 
 (defun gnus-tree-indent (level)
   (insert (make-string (1- (* (1+ gnus-tree-node-length) level)) ? )))
diff --git a/lisp/gnus-sum.el b/lisp/gnus-sum.el
index efbcb4d..e8e9478 100644
--- a/lisp/gnus-sum.el
+++ b/lisp/gnus-sum.el
@@ -12533,8 +12533,7 @@ If REVERSE, save parts that do not match TYPE."
                         (not (memq article gnus-newsgroup-cached)))))
     (let ((face (funcall (gnus-summary-highlight-line-0))))
       (unless (eq face (get-text-property beg 'face))
-	(gnus-put-text-property-excluding-characters-with-faces
-	 beg (point-at-eol) 'face
+	(add-face beg (point-at-eol)
 	 (setq face (if (boundp face) (symbol-value face) face)))
 	(when gnus-summary-highlight-line-function
 	  (funcall gnus-summary-highlight-line-function article face))))))
diff --git a/lisp/gnus-util.el b/lisp/gnus-util.el
index 3c4af9b..791e744 100644
--- a/lisp/gnus-util.el
+++ b/lisp/gnus-util.el
@@ -866,19 +866,6 @@ If there's no subdirectory, delete DIRECTORY as well."
 	  (setq beg (point)))
 	(gnus-overlay-put (gnus-make-overlay beg (point)) prop val)))))
 
-(defun gnus-put-text-property-excluding-characters-with-faces (beg end
-								   prop val)
-  "The same as `put-text-property', but don't put props on characters with the `gnus-face' property."
-  (let ((b beg))
-    (while (/= b end)
-      (when (get-text-property b 'gnus-face)
-	(setq b (next-single-property-change b 'gnus-face nil end)))
-      (when (/= b end)
-	(inline
-	  (gnus-put-text-property
-	   b (setq b (next-single-property-change b 'gnus-face nil end))
-	   prop val))))))
-
 (defmacro gnus-faces-at (position)
   "Return a list of faces at POSITION."
   (if (featurep 'xemacs)

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Summary of changes:
 lisp/ChangeLog      |   14 ++++++++++++++
 lisp/gnus-compat.el |   18 ++++++++++++++++++
 lisp/gnus-group.el  |    4 +---
 lisp/gnus-salt.el   |    4 +---
 lisp/gnus-sum.el    |    5 ++---
 lisp/gnus-util.el   |   13 -------------
 6 files changed, 36 insertions(+), 22 deletions(-)

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