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From:	"Edward Hennessy (ehennes AT sbcglobal DOT net) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Subject:	[geda-user] Warp Cursor Issue
Message-Id:	<CD7C33AC-A1B5-4B60-A220-E8D198128835@sbcglobal.net>
Date:	Sun, 26 Jul 2015 12:53:24 -0700
To:	geda-user AT delorie DOT com
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Reply-To:	geda-user AT delorie DOT com

I’m running into issues where the actual location of the mouse cursor and the reported location of the cursor do not match after a zoom. This issue is related to the warp cursor setting in system-gschemrc. I’m wondering if anyone else is seeing this issue on their system.

I’m currently running Ubuntu 14.04 LTS with Gnome.

1. warp-cursor must be enabled in system-gschemrc (this is the default)
2. Zoom extents “VE"
3. Create a shape, like a box, in the corner of the view.
4. Place the cursor in the center of the shape, and zoom “z”
5. Without moving the cursor, zoom again “z”

With the above procedure, on my system, the cursor still appears toward the corner of the view. However, the second zoom occurred as if the cursor was at the center of the screen - it’s “warped” location.

1. Zoom extents again
2. Place the cursor in the center of the shape, and zoom “z”
3. Move the cursor a few pixels
4. Zoom again “z”

With the above procedure, the actual location of the cursor and the reported location of the cursor match after moving the mouse a few pixels. So it looks like the disparity is corrected after the first mouse motion event.

Ed

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