106944 - 1px vertical lines appear on <tab>'s

Status: RESOLVED WORKSFORME

(Core :: XUL, defect)

Description

[Andrew Simmonds]

1px vertical lines appear at random near the right edge of <tab/>'s when they
start to get bunched.

A small screenshot will be attached.

Comment 1

[Andrew Simmonds]

Attachment: screenshot of lines in tabs

Comment 2

[Markus Gerstel]

I see this, too. 2001102609 linux

It has to be a rounding issue: Get as many tabs open as you need to cover the
whole tabbar. Then open the sidebar and resize it slowly. See the vertical bars
appear on a regular basis.

Comment 3

[Markus Gerstel]

Attachment: Testcase

Comment 4

[Markus Gerstel]

Comment on attachment 55382 [details]
Testcase

Incorrect mimetype

Comment 5

[Markus Gerstel]

-> xul

Testcase-howto: The testcase is a simplified 'tabbar' (really: 3 vboxes with
flex=1). Open sidebar and resize the sidebar slowly. The white line appears
whenever the inner width is divisibly by 3 :

inner width = vbox1 + vbox2 + vbox3
   973 px   =   324 +   324 +   324  +1 white bar
   974 px   =   325 +   324 +   325
   975 px   =   325 +   325 +   325
   976 px   =   325 +   325 +   325  +1 white bar

Comment 6

[John Morrison]

-> box man!

Comment 7

[Cormac F]

*** Bug 109716 has been marked as a duplicate of this bug. ***

Comment 8

[Andrew Simmonds]

*** Bug 111221 has been marked as a duplicate of this bug. ***

Comment 9

[John Morrison]

*** Bug 111671 has been marked as a duplicate of this bug. ***

Comment 10

[John Morrison]

*** Bug 111884 has been marked as a duplicate of this bug. ***

Comment 11

[John Morrison]

*** Bug 117431 has been marked as a duplicate of this bug. ***

Comment 12

[TGOS]

This bug doesn't exist anymore in Build ID 2001122603 (Win98) and probably in
later ones neither (at least I never got a line so far). The lines were also
flickering when the window was resized, even if they didn't get displayed once
you stopped resizing. This is gone, too.

Just annoying that this fix didn't make it to release 0.97 anymore.

Comment 13

[Markus Gerstel]

true, the gaps are now between the tabs (2001122803)

Comment 14

[Marc Boullet]

*** Bug 133542 has been marked as a duplicate of this bug. ***

Comment 15

[Håkan Waara]

Attachment: Testcase

Here's a (working) testcase.   I can't reproduce the bug anymore though; can
anyone else? Maybe we can mark this WORKSFORME.

Comment 16

[Markus Gerstel]

Attachment: Screenshot of new testcase

The lines aren't in the tabs any more (as I said in comment 13), but see for
yourself: The bug still exists.

Comment 17

[Daniel Wang]

worksforme moz 1.4. can anyone reproduce the problem?

Comment 18

[Adam Hauner]

Problem still appears - 2003081204/trunk/W2K

Comment 19

[Andrew Simmonds]

Marking as WORKSFORME
No longer appears, old bug.