Benjamin K. Stuhl wrote: > Hi Jeremy, > I'm looking into making the control graph items nudgeable using the > keyboard, but I've run into a roadblock: plotwindow.selectedWidgets() > destroys and recreates the control items. Since > plotwindow.selectedWidgets() is regularly called from the update timer, > this means that the control items don't stick around long enough to keep > keyboard focus! > Is there some way to tell if the control items really _need_ to be > changed (e.g. by the document change set or something), so that I can > give them a bit more longevity?
Urgh - the design of controlgraphs is a bit ugly isn't it? What do you think is best? - Reimplement them to be some part of the widget which is updated if necessary - quite a bit of work. You'd have the same controlgraph for all the time for the widget. - Only replace them if necessary - I think this will break your keyboard moving code still however. - Some sort of hack which checks whether a controlgraph has the keyboard focus on updating the document, and gives it back to the controlgraph of the same widget after updating. I think the design for controlgraphs is not great as you could (theoretically) have two windows onto the same document open, breaking the current implementation. I suspect the QPainter passed to widget draw should actually keep track of the controlgraphs. We should probably make a proper class for this. In the long run, I think doing this and moving to some sort of update model to save having to destroy them all the time would be best. Jeremy _______________________________________________ Veusz-discuss mailing list [email protected] https://mail.gna.org/listinfo/veusz-discuss
