Bug 38814

Summary: Snappier rendering: paint at idle, not on timeout
Product: LibreOffice Reporter: Björn Michaelsen <bjoern.michaelsen>
Component: UIAssignee: Not Assigned <libreoffice-bugs>
Status: RESOLVED FIXED    
Severity: normal CC: fitojb, michael.meeks
Priority: medium Keywords: difficultyInteresting, easyHack, skillCpp, topicUI
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
Crash report or crash signature: Regression By:

Description Björn Michaelsen 2011-06-30 07:09:28 UTC 
Snappier rendering: paint at idle, not on timeout

Background: Currently LibreOffice repaints its screen after a given timeout - this is less than ideal - we should instead use an 'idle' concept such as other toolkits use for painting instead of timeouts. This would involve adding a set of prioritised handlers to be run when nothing is coming in from sockets. See vcl/source/window/window.cxx /maPaintTimer/ for the current state of affairs (30ms delay-to-render, 50ms to resize). See also vcl/unx/gtk/app/gtkdata.cxx's impl. of the polling interface: StartTimer / StopTimer etc. we need to add idle handlers with variable priorities / ordering too.

Skills: building, C++, mainloop understanding
Comment 1 Florian Reisinger 2012-05-18 08:56:50 UTC 
Deteted "Easyhack" from summary
Comment 2 Björn Michaelsen 2013-10-04 18:48:03 UTC 
adding LibreOffice developer list as CC to unresolved EasyHacks for better visibility.

see e.g. http://nabble.documentfoundation.org/minutes-of-ESC-call-td4076214.html for details
Comment 3 Michael Meeks 2014-10-18 20:28:12 UTC 
There is work going on on this topic at Munich; with some details in the wiki here: https://wiki.documentfoundation.org/Development/LHM_LiMux/Main_Loop
Comment 4 Robinson Tryon (qubit) 2015-12-14 05:00:15 UTC 
Migrating Whiteboard tags to Keywords: (EasyHack DifficultyInteresting SkillCpp TopicUI)
[NinjaEdit]
Comment 5 Michael Meeks 2016-01-26 16:12:49 UTC 
Seems I inadvertently fixed this with the help of the Munich interns for 5.1.
Comment 6 Robinson Tryon (qubit) 2016-02-18 16:37:30 UTC 
Remove LibreOffice Dev List from CC on EasyHacks
(curtailing excessive email to list)
[NinjaEdit]