Date: Mon, 23 Aug 2004 12:06:41 -0500
To: qt-bugs@trolltech.com
Subject: bug in xpm color spec handling

This bug is present in Qt 3.3.3 and in qt-x11-free-3.3.4-snapshot-20040822.
In src/kernel/image.cpp:

static int nextColorSpec(const QCString & buf)
{
    int i = buf.find(" c ");
    if (i < 0)
        i = buf.find(" g ");
    if (i < 0)
        i = buf.find(" g4 ");
    if (i < 0)
        i = buf.find(" m ");
    if (i < 0)
        i = buf.find(" s ");
    return i;
}

This function assumes a particular order of the color specs in an XPM file
that is not required by the XPM standard.  Given the color line:

".      c black     m black g black  g4 black  s Legs       ",

The nextColorSpec call in:

        buf = buf.mid( i+3 );
        // Strip any other colorspec
        int end = nextColorSpec(buf);
        if (end != -1)
            buf.truncate(end);

will match on " g " instead of " m ", resulting in a color name of "black m "
being passed to QColor::setNamedColor.

Suggest replacing the sequence of buf.find's in nextColorSpec with a
single buf.find using an appropriate QRegExp.