Issue 94627 - line redraw lagging after assigning new font height
Summary: line redraw lagging after assigning new font height
Status: CONFIRMED
Alias: None
Product: Writer
Classification: Application
Component: formatting (show other issues)
Version: OOo 3.0 RC3
Hardware: PC Windows XP
: P3 Trivial (vote)
Target Milestone: ---
Assignee: AOO issues mailing list
QA Contact:
URL: http://www.pfadwaechter.de/openoffice...
Keywords:
Depends on:
Blocks:
 
Reported: 2008-10-04 16:00 UTC by pfadwaechter
Modified: 2013-08-07 14:38 UTC (History)
1 user (show)

See Also:
Issue Type: DEFECT
Latest Confirmation in: ---
Developer Difficulty: ---


Attachments
animated gif showing odd behaviour of writer (67.66 KB, image/gif)
2008-10-04 16:01 UTC, pfadwaechter
no flags Details
document for reproduction of bug (9.63 KB, application/vnd.oasis.opendocument.text)
2008-10-04 16:04 UTC, pfadwaechter
no flags Details

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Description pfadwaechter 2008-10-04 16:00:14 UTC
After changing the font size of a paragraph, Writer adjusts the position of all 
preceeding paragraphs. But sometimes some lines seem to be misaligned and 
Writer moves them up/down a pixel. These Lines are moved one by one with a 
delay of ~2 seconds between each line.
Here is an animated gif showing the bug: http://www.pfadwaechter.de/openoffice/
openoffice_bug.gif (document used for animation: http://www.pfadwaechter.de/
openoffice/test.odt)
The redrawing continues even if the user modifies content below the changed 
paragraph. This is very distracting since the eye is "trained" to register 
movement outside of its focus. I gave this bug a priority of 3 because i think 
that it is more than just a cosmetic issue. Another interesting point is that 
this bug occurs in all versions of OpenOffice since 1.x.

Reproduction of the bug:
- open "test.odt"
- select any paragraph (preferably the first one)
- change font size to 13
- click somewhere else in the document (to deselect the paragraph)
- watch ...

i could reproduce the bug with the provided document very easily, but it does 
not always occur all the time in all documents.
Comment 1 pfadwaechter 2008-10-04 16:01:32 UTC
Created attachment 57000 [details]
animated gif showing odd behaviour of writer
Comment 2 pfadwaechter 2008-10-04 16:04:00 UTC
Created attachment 57001 [details]
document for reproduction of bug
Comment 3 michael.ruess 2008-10-06 10:38:30 UTC
MRU->FME: this is a quite funny effect. Use the attached document. Select one of
the first paragraphs and assign new font height of 13 pt. The click into text to
de-select. Watch now how every ~2 secs a line in the text will be redrawn.