Hi David, Thanks that helps a lot, really appreciate it.
Brickle. -- On 3/06/11 8:06 AM, David Boddie wrote: > On Thu Jun 2 23:07:12 BST 2011, Brickle Macho wrote: > >> I am trying to do is display an image, and then using drag-selection to >> select a sub-image for later processing. Eventually I want to be able >> to select multiple regions and tag each region for appropruate back end >> processing, but for now just being able to select one sub-image would be >> good. I can display an image, but don't know how to implement >> drag-selection (think it is also know as rubber band selection). I am >> assuming I will need to write some mouse-callbacks or something. My >> search-fu has failed me and I haven't been able to find any examples to >> study. Can someone give me any pointers to which widgets I should be >> using and perhaps where to find a sample program I can study. > There didn't seem to be much in the PyQt examples to show this - the > itemviews/chart example does use QRubberBand to allow the user to select > data, but that's not the best example to learn this technique from. > > I quickly wrote an example that does part of what you want: > > http://www.diotavelli.net/PyQtWiki/Selecting_a_region_of_a_widget > > Hope this helps, > > David > _______________________________________________ > PyQt mailing list [email protected] > http://www.riverbankcomputing.com/mailman/listinfo/pyqt _______________________________________________ PyQt mailing list [email protected] http://www.riverbankcomputing.com/mailman/listinfo/pyqt
