On 2008-01-07, Phil Thompson wrote: > On Monday 07 January 2008, Arve Knudsen wrote: > > Hello > > > > I've run into what looks like a bug in PyQt. When changing the font of a > > QLabel at runtime, it doesn't update its appearance unless I call its > > update() method. I've verified that this problem doesn't occur when using > > Qt directly from C++. Even after calling update(), something isn't right > > however, as the containing QGridLayout isn't adjusted to account for the > > label's changed dimensions. > > > > The attached program showcases the problem. Uncomment line 20 to see the > > layout problem. > > Change the first line of changeFont() to... > > f = QFont(self.__lab.font()) > > ...so that it is closer to what C++ would do. > > SIP doesn't enforce "const". I've been mulling over this for a while. SIP > could enforce "const" so that the call to setBold() would raise an > exception. The disadvantage is that existing apps may break - but, then > again, they are broken anyway. > > An alternative might be to automatically make a copy under the covers so > that wrapped C++ instances are never const.
I think this second way would be easier for users and seems perfectly Pythonic. -- Mark Summerfield, Qtrac Ltd., www.qtrac.eu _______________________________________________ PyQt mailing list PyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
