Cool, thanks for the tips Sebastian, will have a go at these! Cheers, frank
On 27/05/12 10:24 PM, Sebastian Elsner wrote: > I did not notice a speed difference in formats, but since you are bound > to use QPixmaps or QIcons (dont use Qimage/qpicture, its for > manipulation of image data), which you pass your icon path to, and thus > instanciate and read the actual data, I am always using a simple cache > algorithm which would remember the whole pixmap after loading the data. > You can do this in a separate dict with itemname:QPixmap once per > item/icon or if you are using come kind of itemmodel in the item used. > So at least in most cases you dont have to load your icon data twice. > For exmaple in a TreeView or TableView this greatly improves scrolling > speed. > > > Am 26.05.2012 22:34, schrieb Frank Rueter | OHUfx: >> Hi all, >> >> is there a recommended image format to use to get best performance out >> of QT? >> I've got some animated widgets (sliding docks etc.) that are populated >> with several small icons (currently 8bit pngs). >> Since the animation is a bit jerky I will have to go hunting for ways >> top optimise the code, and thought the image format for the icons would >> be a good place to start. >> >> Any experience and/or recommendations for this? >> >> Cheers, >> frank >> >> _______________________________________________ >> PySide mailing list >> [email protected] >> http://lists.qt-project.org/mailman/listinfo/pyside _______________________________________________ PySide mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/pyside
