35058 - Grip on horizontal scrollbar looks strange, has dots below lines

Status: RESOLVED WORKSFORME

(Core :: XUL, defect, P5)

Description

[Blake Ross]

Go to a page like http://www.mozilla.org/projects/intl/xul-how2l10n.htm that 
makes the horizontal scrollbar appear.  Why are there tiny dots below the 
vertical lines on the horizontal scrollbar grip?  They look almost like 
exclamation points.  To be consistent, either the horizontal scrollbar grip 
should not have these dots, or the vertical scrollbar grip should.

Comment 1

[John Morrison]

I had a look at this on two different windows boxes, and I don't see this. 
However, there is dithering at the tip of these lines, which show up as blue
tips at 256 colors and 800x600. 

Passing to bdonohoe/UI Design for assessment.

Comment 2

[Blake Ross]

Attachment: screenshot of problem

Comment 3

[Blake Ross]

Sorry about the incorrect URL; it's http://www.mozilla.org/projects/intl/xul-
how2l10n.html (the other was missing the ending "l").

In any event, I'm on Win98 SE, latest available M14 Win32 nightly build 
[2000040708].  800 x 600 and High Color (16-bit).  I've attached a screenshot 
so you can see what I'm seeing.  Look under the vertical lines of the 
horizontal scrollbar grip, you'll see tiny (but noticeable) dots.

Comment 4

[Blake Ross]

i dont see this problem on the latest win32 nightly.  marking FIXED.

Comment 5

[John Morrison]

this should be WORKSFORME, not FIXED (since no one knowingly made a 
change to address this issue).

Comment 6

[John Morrison]

WORKSFORME

Comment 7

[John Morrison]

vrfy

Comment 8

[Blake Ross]

something must have changed as I saw it in last night's nightly build, but not 
today's.  in any event, the problem's gone.

Comment 9

[Blake Ross]

Problem has returned with 2000042608 and recent nightlies.  No one else with 
win98 sees this?

Comment 10

[Blake Ross]

confirming, updating summary (not sure why RFE was there)

Comment 11

[John Morrison]

*** Bug 37614 has been marked as a duplicate of this bug. ***

Comment 12

[Brendan Donohoe]

I'm not seeing this with the 2000050111 build on Win 98.

Marking WORKSFORME.

Comment 13

[Blake Ross]

still seeing it............800 x 600, True Color (32-bit) exactly as in 
screenshot, apparently others are as well since i've seen it in a screenshot of 
another bug problem

Comment 14

[Brendan Donohoe]

Must be some missing detail that's causing it to occur on some machines 
and not others.  Either way, it's not a design issue, but a right proper bug.

Reassigning to XP Toolkit/Widgets.

Comment 15

[John Morrison]

Can people who have seen this mis-shapen thumb (image) just try loading 

   chrome://global/skin/scroll-thumb-horiz.gif

and see if that looks distorted. [It should be 11px high with the middle
nine pixels being black, and the outer two a dark grey]. Thanks!

Comment 16

[Blake Ross]

I don't see the dots in the image, looks fine and just as it should.

Comment 17

[Neil Marshall]

It looks fine when you type in the url in mozilla.
It looks fine when you view the image in a paint program.
You get the horizontal gray line when its used on the slider in the HSB.

Comment 18

[Neil Marshall]

I just modified the gif so it was a black square the same size.  No gray dots in 
it - if that means anything.

Comment 19

[Blake Ross]

Wait, are we talking about two different problems here?

I'm not sure if I see a gray line, but Neil, do you see the three tiny dots 
that are shown in the screenshot?

Comment 20

[Neil Marshall]

yes.  When looking at the image, there are no dots there.  In the browser 
there are, but when I modified the image to be a complete black square, they 
dissapeared.

Comment 21

[Neil Marshall]

Wait... I modified the image again :)  I have a black square.  With a gray line 
along the bottom.

What I see in the browser is a black square with a gray line one pixel up from 
the bottom.  With a little more testing it looks like this is an opacity 
problem.

Where the extra black dots at the bottom (In the origional) are showing, the gif 
is actually supposed to be transparent.  In scroll-right-hover.gif, there is one 
row of transparent pixels at the very bottom.

Comment 22

[John Morrison]

It appears that the image is stretched from 11px to 13px high (due to padding 
used on the scroll-left|right.gif that gives it onmousedown movement).

Why this stretching of the GIF in the thumb xbl causes some distortion on some 
systems, I don't know (but if there is anything unusual about the affected 
systems (DPI, color depth, video cards) that might make the difference). 

I don't know who should get this: ben, german or evaughan. (It is, of course,
not a major issue to resolve soon).

Comment 23

[Peter Trudelle]

I don't see it either, but in any case we have no time to fix bugs like this,
targetting M30, help wanted.

Comment 24

[Blake Ross]

hmm...I'm not seeing this on 2000050208 anymore.  wfm.

Comment 25

[Neil Marshall]

I'm still seeing it on 2000050208 :|

Comment 26

[Blake Ross]

Neil, out of curiosity, what color are you at?

I was at True Color (32-bit)...when I switched to High Color (16 bit) under 
Win98, I didn't see the dots in the horizontal scrollbar; I also didn't see 
them once I switched back to 32bit True Color.

Please be aware, however, that I'm in no way suggesting that the temporary 
switch to High Color is what made the dots disappear; I'm not sure if I ever 
looked in 2000050208 *before* switching to High Color to see if they were still 
there anyways.

Comment 27

[Neil Marshall]

Loaded Mozilla in
16 Bit: Dots are there
switched to 24 Bit: Dots are there
switched to 32 Bit: Dots are not there
switched to 256 colours: Dots are not there

Closed mozilla
Switched to 256 colour
Loaded mozilla
Dots are there

Closed mozilla
Switched to 32 Bit colour
Loaded Mozilla
Dots are there

Closed Mozilla
Switched back to my normal 1600x1200x16 bit
Loaded mozilla
Dots are there

It looks like it makes them dissapear sometimes.

Comment 28

[Blake Ross]

::sigh:: seeing it again on latest nightlies.  Just reopening and hoping 
someone searching helpwanted takes it

Comment 29

[Blake Ross]

reassigning to nobody

Comment 30

[Peter Trudelle]

I'm using 24 bit and 8 bit on Win98, if nobody cares...

Comment 31

[Neil Marshall]

why do all the radio buttons have 2 gray dots now?  I can post a screen shot if 
anyone wants to see it.

Comment 32

[[e-mail]]

Isn't this out of date now? Blue has gone, Classic doesn't use thumb images and
Modern is...

Comment 33

[John Morrison]

moot.