Bugs item #1065303, was opened at 2004-11-12 17:50
Message generated for change (Comment added) made by yooden
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Category: None
Group: None
Status: Open
Resolution: Accepted
>Priority: 4
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: screen refreshment error
Initial Comment:
NEdit release of Aug 20, 2004
Built on: Linux, 386, Intel C++
Built at: Nov 11 2004, 12:39:56
With Motif: 2.2.3 [@(#)Motif Version 2.2.3]
Running Motif: 2.2 [unknown]
Server: The XFree86 Project, Inc 40300000
Visual: 24-bit TrueColor (ID 0x21, Default)
Locale: en_US.iso885915
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1) set initial nedit window size to 60x90;
2) open a new window and copy the following lines to
the new opened window;
############################################################################AAAAAAAAAAAAA###;
#################################################################################################################;
3) search "aaaaaaaaaaaaa" (13 As) by press "Ctrl+F",
when this string is found and highlighted, press
"BackSpace" to delete it;
4) Then you will find a portion of the cursor still
remains at the right edge of the window.
5) if your cursor is blinking, you may not be able to
observe this each time with step 1-4. In this case,
just undo the changes by pressing "Ctrl+Z" and delete
the highlihted string again. Repeat this undo and
deletion several times you will see what I am saying.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
another similar problem:
If you set the cusor to "overtype" model (the cursor
will becomes arectangle), press "End" key to move your
cursor to the end of the first line, then move the
cursor left, and you will see the cursor is not remved
completely-a small portion still remains at the right
edge of the window.
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>Comment By: Thorsten Haude (yooden)
Date: 2008-01-04 17:14
Message:
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user_id=119143
Originator: NO
These things tend to be tricky, and it's nowhere near crippling, so it can
wait for the next release.
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Comment By: Tony Balinski (ajbj)
Date: 2007-03-02 01:17
Message:
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Still behaves as described.
I think this is essentially because the redraw of the cursor position to
blank out the cursor occurs at the current cursor position, rather than at
its old position. If you press the backspace when the cursor is blanked,
there is no leftover pixel cruft. Strictly, we should blank the cursor
before any change is made (to avoid this problem) and otherwise store the
previous cursor's position for blanking refresh rather than assume it's the
same as the current one. Now how tricky is that?
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