Bug 39677

Summary: Text corruption bug when using Impress text custom animations.
Product: LibreOffice Reporter: rfvuhbtg <rfvuhbtg>
Component: PresentationAssignee: Not Assigned <libreoffice-bugs>
Status: NEW --- QA Contact:
Severity: normal    
Priority: medium CC: jeffdchang, sasha.libreoffice, yfjiang
Version: 3.3.4 release   
Hardware: All   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments: demonstrates the animation bug

Description rfvuhbtg 2011-07-29 20:22:44 UTC
Created attachment 49734 [details]
demonstrates the animation bug

When using custom animations, if the text box border of the text to be animated overlaps with another text box--or if the text to be animated shares a text box with other text--then after the animation completes, the other text will become slightly corrupted.  It will become darkened, as if bolded, and look rougher (less anti-aliased) in general.  

This makes it difficult to use text animations and impossible to animate bulleted/numbered lists while maintaining a professional-looking slide.

Attached is a one-slide presentation that should demonstrate the problem.

(This was on an Intel HD graphics card--first generation Core i3)
Comment 1 Jeffrey 2011-07-31 18:04:10 UTC
Confirmed for LibreOffice 3.4  340m1(Build:103) on OpenSuse Linux.

Cannot pinpoint the exact reason for corruption, as you stated in your slide, but when I moved the text boxes away from each other, the text no longer became corrupted, so that very well may be the reason for the problem. Thanks for the great attachment and steps.
Comment 2 Björn Michaelsen 2011-12-23 12:24:39 UTC
[This is an automated message.]
This bug was filed before the changes to Bugzilla on 2011-10-16. Thus it
started right out as NEW without ever being explicitly confirmed. The bug is
changed to state NEEDINFO for this reason. To move this bug from NEEDINFO back
to NEW please check if the bug still persists with the 3.5.0 beta1 or beta2 prereleases.
Details on how to test the 3.5.0 beta1 can be found at:
http://wiki.documentfoundation.org/QA/BugHunting_Session_3.5.0.-1

more detail on this bulk operation: http://nabble.documentfoundation.org/RFC-Operation-Spamzilla-tp3607474p3607474.html
Comment 3 rfvuhbtg 2012-01-03 11:33:28 UTC
I can confirm that it still happens with LibreOffice 3.5 beta 2...

Although in that version, the animations for the example slide do not work correctly at all.  In addition to the bug listed here, the entire slide shows up at once.  The text boxes do play their animation when it is time for them, but they are displayed on the slide even before that.
Comment 4 sasha.libreoffice 2012-03-29 00:45:41 UTC
Reproduced in 3.3.4 and 3.5.1 on Fedora 64 bit
Changing to 3.3.4 as most early reproducible

If disable hardware acceleration, animation also disappears. Text just appears.
Comment 5 A (Andy) 2013-04-24 21:39:09 UTC
not reproducible with LO 4.0.2.2 (Win7 Home, 64bit)

Does this issue still persist for you with the latest release of LO?
Comment 6 sasha.libreoffice 2013-04-25 10:33:06 UTC
text corruption in 4.0.2 not reproducible
If disable hardware acceleration, animation also disappears.
So, initial bug not reproduced. Absence of animation is another bug or may be even intended behaviour. IMHO bug may be closed

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