[kdevelop] [Bug 358526] Freeze and glitches when changing KDE color scheme

[Kevin Funk via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=358526

Kevin Funk  changed:

   What|Removed |Added

 CC||cullm...@kde.org,
   ||dhaum...@kde.org

-- 
You are receiving this mail because:
You are watching all bug changes.

[kdevelop] [Bug 358526] Freeze and glitches when changing KDE color scheme

[Kevin Funk via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=358526

--- Comment #2 from Kevin Funk  ---
Observations:
- When no editor tabs open: Color switch is almost instant
- With editor tabs open: Switch is indeed super slow, takes several seconds.

Printing a few stack traces during the freeze revealed:

#0  0x7fe84d3b9c05 in QFontEngineFT::stringToCMap (this=0x61e00010c880,
str=0x60b000511b88, len=5, glyphs=0x7ffc9a3ecac0, nglyphs=0x7ffc9a3eca88,
flags=...) at ../gui/text/qfontengine_f
t.cpp:1497
#1  0x7fe864022cda in QFontEngineMulti::stringToCMap (this=0x61100158d480,
str=0x60b000511b88, len=5, glyphs=0x7ffc9a3ecac0, nglyphs=0x7ffc9a3eca88,
flags=...) at text/qfontengine.cpp:1
796
#2  0x7fe8640440a0 in QTextEngine::shapeText
(this=this@entry=0x61121340, item=item@entry=0) at
text/qtextengine.cpp:1006
#3  0x7fe864044a7f in QTextEngine::shape (this=0x61121340,
item=item@entry=0) at text/qtextengine.cpp:1494
#4  0x7fe8640584c5 in QTextLine::layout_helper
(this=this@entry=0x7ffc9a3ece30, maxGlyphs=maxGlyphs@entry=2147483647) at
text/qtextlayout.cpp:1766
#5  0x7fe864058f99 in QTextLine::setLineWidth
(this=this@entry=0x7ffc9a3ece30, width=) at
text/qtextlayout.cpp:1531
#6  0x7fe8678e6641 in KateRenderer::layoutLine (this=0x607000acafc0,
lineLayout=..., maxwidth=944, cacheLayout=) at
../../src/render/katerenderer.cpp:1028
#7  0x7fe8678ec8b1 in KateLayoutCache::line
(this=this@entry=0x60600069b5a0, realLine=realLine@entry=35,
virtualLine=virtualLine@entry=10) at ../../src/render/katelayoutcache.cpp:334
#8  0x7fe8678ed281 in KateLayoutCache::updateViewCache
(this=0x60600069b5a0, startPos=..., newViewLineCount=,
newViewLineCount@entry=46, viewLinesScrolled=viewLinesScroll
ed@entry=0) at ../../src/render/katelayoutcache.cpp:282
#9  0x7fe86793a67f in KateViewInternal::doUpdateView (this=0x61600085e380,
changed=, viewLinesScrolled=0) at
../../src/view/kateviewinternal.cpp:575

Feels like Kate is busy re-layouting the views? I'm still wondering why it's so
slow, though (in my case I just had 4 tabs open)

-- 
You are receiving this mail because:
You are watching all bug changes.

[kdevelop] [Bug 358526] Freeze and glitches when changing KDE color scheme

[Milian Wolff via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=358526

Milian Wolff  changed:

   What|Removed |Added

   Target Milestone|--- |5.0.0
 Status|UNCONFIRMED |CONFIRMED
   Keywords||release_blocker
 Ever confirmed|0   |1
   Priority|NOR |VHI

--- Comment #1 from Milian Wolff  ---
I've seen that as well.

-- 
You are receiving this mail because:
You are watching all bug changes.