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List:       kmail-devel
Subject:    [Bug 124449] New: Message list scrolls twice when unicode must be
From:       Carl Hudkins <carl () hudkins ! org>
Date:       2006-03-28 20:13:17
Message-ID: 20060328221316.124449.carl () hudkins ! org
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http://bugs.kde.org/show_bug.cgi?id=124449         
           Summary: Message list scrolls twice when unicode must be rendered
           Product: kmail
           Version: 1.9.1
          Platform: unspecified
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: kmail-devel kde org
        ReportedBy: carl hudkins org


Version:           1.9.1 (using KDE 3.5.1, Gentoo)
Compiler:          gcc version 3.4.4 (Gentoo Hardened 3.4.4-r1, ssp-3.4.4-1.0, \
                pie-8.7.8)
OS:                Linux (ppc) release 2.6.14-hardened-r5

This minor problem has been present in Kmail for a long time (I'm thinking at least a \
year, since I've been running a UTF-8 system for at least that long), but I only \
recently figured out exactly how to make it happen.

In the "message list" pane, when a message subject or sender that is not yet visible \
contains Unicode text that has not been rendered yet, clicking the scrollbar to move \
down the list will cause it to scroll down TWO "pages" instead of one.  I'll clarify \
with an example:

I'm looking at my Spam folder on an IMAP server.  This folder contains junk mail in \
many languages.  :)  Since I've just started Kmail and am looking at this folder for \
the first time today, it's at the very top of the list.  All of the messages \
displayed (10, since my list pane is rather small) are in English, but the 15th new \
message (which I can't see at the moment) is in Japanese.  Clicking once on the \
scrollbar to move down the list, I see the scrollbar move, there is a noticeable \
pause while KDE deals with the Japanese characters, then the scrollbar moves again \
and I am now looking at messages 21--29.  I have to scroll UP to see message 15.

Scrolling up or down past more messages in Japanese works as expected, but now if I \
have some spam in Korean (different Unicode block, or whatever the proper term is) \
the double-scroll will happen again when that one should come into view.

Closing Kmail and starting it again will cause the double-scroll again, the first \
time a message with "interesting" characters in the header should be scrolled into \
view.

Loaded plugins/backtraces:  N/A
How to reproduce:  See above :)
Expected behavior:  Kmail should only scroll down one "page" of messages in the list, \
even if these messages use Japanese, Korean, Hebrew or whatever in this pane.  On a \
fast system (which mine is not), the user might not notice the double-scroll and \
therefore miss seeing some messages. _______________________________________________
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