372229 - Font/text degradation (refresh problem) on backspace in message compose window

Status: RESOLVED WORKSFORME

(Thunderbird :: Message Compose Window, defect)

Description

[Viksit Gaur]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.2) Gecko/20070219 Firefox/2.0.0.2
Build Identifier: version 1.5.0.9 (20061207)

When typing a line of text and pressing backspace from either

- the end of the line or
- anywhere in the middle of the line

the cursor ostensibly deletes the text, but the window doesn't refresh as well as it should, as a result leaving artifacts. Also, when typing sometimes, the character appearing at the cursor is in fact right ON it (in the center of the cursor), rather than being behind it. As a result, the character is chopped into half.


Reproducible: Always

Steps to Reproduce:
1. New Message compose window (text mode)
2. Type lines of text in message area
3. Go to end of line or middle of line and press backspace
Actual Results:  
The screenshot is posted above. There is a row of artifacts left behind when the cursor goes back.

Expected Results:  
The area should be clean.

Pressing the right click button on the mouse over the affected area - resulting in the context menu, or maximizing the window clear things up for a while.

Comment 1

[Viksit Gaur]

More comments. I'm not sure if this has anything to do with the bug, but this version of thunderbird is using a profile which I imported from a Linux installation of t-bird.

Imported, as in, copied the 8dfsdhsjd.default directory into the Profiles directory and changed the .ini file to reflect the new name. 

FYI.

Comment 2

[Steve]

(In reply to comment #0)
> User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.2)
> Gecko/20070219 Firefox/2.0.0.2
> Build Identifier: version 1.5.0.9 (20061207)
> 
> When typing a line of text and pressing backspace from either
> 
> - the end of the line or
> - anywhere in the middle of the line
> 
> the cursor ostensibly deletes the text, but the window doesn't refresh as well
> as it should, as a result leaving artifacts. Also, when typing sometimes, the
> character appearing at the cursor is in fact right ON it (in the center of the
> cursor), rather than being behind it. As a result, the character is chopped
> into half.
> 
> 
> Reproducible: Always
> 
> Steps to Reproduce:
> 1. New Message compose window (text mode)
> 2. Type lines of text in message area
> 3. Go to end of line or middle of line and press backspace
> Actual Results:  
> The screenshot is posted above. There is a row of artifacts left behind when
> the cursor goes back.
> 
> Expected Results:  
> The area should be clean.
> 
> Pressing the right click button on the mouse over the affected area - resulting
> in the context menu, or maximizing the window clear things up for a while.
> 

I experience this same problem relationship to the problem reported in Bug #295852.

Comment 3

[Wayne Mery (:wsmwk)]

iirc this shouldn't be happening in version 2. 
I don't see this in version 3.