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bug#9663: 23.2; feature wish: put priority on vcursor overlay


From: Hendrik Tews
Subject: bug#9663: 23.2; feature wish: put priority on vcursor overlay
Date: Mon, 03 Oct 2011 21:48:30 +0200

Hi,

the vcursor is invisible in the locked regions of Proof General,
because the overlay of the locked region has priority 100 and the
vcursor overlay has no priority set. 

Below I attach a patch that adds a defcustom
vcursor-overlay-priority to the vcursor package, which fixes this
problem. (I hereby assign copyright in this patch to the emacs
project/FSF.)

Bye,

Hendrik Tews


*** vcursor-23.2.el     2011-10-03 21:33:10.000000000 +0200
--- vcursor.el  2011-10-03 21:29:59.000000000 +0200
*************** scrolling set this.  It is used by the `
*** 508,513 ****
--- 508,521 ----
    :type 'boolean
    :group 'vcursor)
  
+ (defcustom vcursor-overlay-priority 500
+   "Priority of the overlay that symbolizes the vcursor.
+ Increase this value if the vcursor becomes invisible when moving
+ into other specifically colored regions of text."
+   :type 'integer
+   :group 'vcursor
+   :version "23.4")
+ 
  (defvar vcursor-temp-goal-column nil
    "Keeps track of temporary goal columns for the virtual cursor.")
  
*************** another window.  With LEAVE-W, use the c
*** 657,663 ****
        (or window-system
          (display-color-p)
          (overlay-put vcursor-overlay 'before-string vcursor-string))
!       (overlay-put vcursor-overlay 'face 'vcursor))
      (or leave-w (vcursor-find-window nil t))
      ;; vcursor-window now contains the right buffer
      (or (pos-visible-in-window-p pt vcursor-window)
--- 665,672 ----
        (or window-system
          (display-color-p)
          (overlay-put vcursor-overlay 'before-string vcursor-string))
!       (overlay-put vcursor-overlay 'face 'vcursor)
!       (overlay-put vcursor-overlay 'priority vcursor-overlay-priority))
      (or leave-w (vcursor-find-window nil t))
      ;; vcursor-window now contains the right buffer
      (or (pos-visible-in-window-p pt vcursor-window)





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