MyPaint - Bugs: bug #20583, Low panning performance after the... [Gna!]

MyPaint - Bugs: bug #20583, Low panning performance after the...

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bug #20583: Low panning performance after the 'preview' addition

Submitted by:	David REVOY <deevad>
Submitted on:	Mon 04 Mar 2013 01:17:20 PM UTC

Severity:	4 - Important	Priority:	5 - Normal
Status:	Fixed	Privacy:	Public
Assigned to:	Andrew Chadwick <achadwick>	Open/Closed:	Open
Release:	1.1+Git	Planned Release:	None
Operating System:	Linux

Wed 06 Mar 2013 09:29:54 AM UTC, comment #4: Perfect ! Its smooth again here to pan on canvas. Grabbing the preview square make a lower "frame per second" motion, but this is not a problem as the feedback movement is perfect, and motion smooth and real-time compare to user's decisions. Thanks for the superfast fix.	David REVOY <deevad>
Wed 06 Mar 2013 09:02:18 AM UTC, comment #3: Fix committed: https://gitorious.org/mypaint/mypaint/commit/2ebc1458fd62f47ddc723f5579883735df37cb98 David: could you try this out please and let me know if panning the main view with the preview subwindow feels less slow? And the same when grabbing the preview rectangle.	Andrew Chadwick <achadwick>
Wed 06 Mar 2013 04:08:54 AM UTC, comment #2: Workaround: turn the preview window off, and close MyPaint before working on really huge files.	Andrew Chadwick <achadwick>
Wed 06 Mar 2013 04:07:39 AM UTC, comment #1: Confirmed for huge docs, zoomed out in the main area. If the preview has been on, then even closing it doesn't help. Strong red line down the centre of the profiling graph... Need to be smarter about calling notify_view_changed() in intensive drags, or it needs to be smarter, or we need tiledsurface to cache extents (again ☺)	Andrew Chadwick <achadwick>
Mon 04 Mar 2013 01:17:20 PM UTC, original submission: About panning the viewport ( space / mouse middle click or via panning tool ) it get really slow. I saw it after the 'preview' new feature. Btw, grabbing the cyan rectangle inside the 'preview' widget pan more smoothly.	David REVOY <deevad>

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-unavailable- added by achadwick (Posted a comment)

-unavailable- added by deevad (Submitted the item)

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Follow 5 latest changes.

Date	Changed By	Updated Field	Previous Value	Replaced By
Wed 06 Mar 2013 10:22:50 AM UTC	achadwick	Status	Ready For Test	Fixed
Wed 06 Mar 2013 09:02:18 AM UTC	achadwick	Status	Confirmed	Ready For Test
Wed 06 Mar 2013 04:07:39 AM UTC	achadwick	Severity	3 - Normal	4 - Important
		Status	None	Confirmed
		Assigned to	None	achadwick

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