[Qt-interest] Problem with QFontMetrics boundingRect reducing width

[Zeljko]

Zeljko wrote:

> Hi,
> Just run into this bug with my project:
> http://bugreports.qt.nokia.com/browse/QTBUG-12950
> under linux. FC 14 qt-4.7.1-7.
> 
> According to commited files, it's probably fixed for all platforms except X11.
> Anyone can confirm this please ?

Seem that QFontMetrics boundingRect is ok, but QPainter drawText is not.
So simple case to reproduce is here

clip rect is 0, 0, 128, 39.
rect is 4, 4, 120, 31
font is current system font (liberation sans, size=9).

painter.drawText(rect, Qt::AlignLeft || Qt::AlignVCenter || Qt::TextWordWrap, 
tr("Save project\nCtrl + S"));

Draws
--------
Save
project
---------

But should be
----------------
Save project
Ctrl + S
----------------

Same code works ok with qt-4.6.3, but not with qt-4.7.1 (don't know about 
4.7.0). Tested on linux (fedora 14), Fedora 13 = qt-4.6.3.

Problem exists if first line contains < 3 spaces and line feed and flags 
contains Qt::TextWordWrap .
eg. 'Save project\nCtrls + S' - BAD
eg. 'Save project with\nCtrls + S' - BAD
eg. 'Save project with keys\nCtrl + S' GOOD

Note that without Qt::TextWordWrap everything works fine.

Anyone can confirm, or I should write complete example and open an issue about 
it ?

thanks

zeljko