[Qt-interest] missing first character in labels

[Atlant Schmidt]

Joost:

> The problem is that sometimes the first character is
> missing from on-screen text. The problem only shows up
> about half the time.

  You might look back in the archived E-mails of this
  list to find my E-mails about a font corruption problem
  that I diagnosed several months ago. I also proposed a
  correction for the problem but haven't heard anything
  from the Trolls about this.

  Your problem doesn't sound exactly like my problem
  (in that my problem involved a character glyph that
  crossed a virtual memory page boundary in a .QSF
  file so this character, by definition, could *NEVER*
  be the first character used from a font) but perhaps
  my posts will give you some ideas. Or perhaps there's
  a mechanism I didn't see by which the first virtual
  page mapping the .QSF file isn't managed correctly
  by Qt.

                        Atlant

-----Original Message-----
From: qt-interest-bounces+aschmidt=dekaresearch.com at qt.nokia.com [mailto:qt-interest-bounces+aschmidt=dekaresearch.com at qt.nokia.com] On Behalf Of Joost Heijne
Sent: Tuesday, May 10, 2011 02:55
To: qt-interest at qt.nokia.com
Subject: [Qt-interest] missing first character in labels

Dear all,

I have been struggling with the exact same issue and found only one hit
on
google, which was this old message. I was wondering if someone would
have
found a solution yet, or if anyone could tell me what I'm doing wrong.

I'm using Qt 4.7.3 on embedded linux now, but some previous versions
have shown the same symptoms.

Regards,

Joost


> I'm having an intermittent problem that seems to be related to fonts.
> I'm using Qt 4.5.2 on embedded linux.
>
>
>
> The problem is that sometimes the first character is missing from
> on-screen text. The problem only shows up about half the time.
Sometimes
> when I start up the app, it's there. If I restart the app, it might
> disappear. The reason I think it's related to a font problem is that
the
> problem will only show up once for every font/size/style combination.
In
> other words, if I use the same font/size/style throughout the app, I
> only get one string in the whole app with a missing first character.
If
> I add another font/size/style combo, I get another missing character
on
> strings with that font configuration.
>
>
>
> I tried using QFontDatabase.addApplicationFont, but this doesn't seem
to
> have an effect.
>
>
>
> Any ideas out there?
>
>
>
> Thanks in advance.
>
>
>
> Chris
>

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