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From: John H. <jd...@gm...> - 2010-07-13 15:14:10
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On Tue, Jul 13, 2010 at 5:34 AM, Preben Randhol <ra...@pv...> wrote: > Hi > > I have tried the mpl and glade examples and tried different approaches > from the net, but I can only get button_press_event to work with a matplot > canvas. key_press_event does not work using gtkagg for GUI. > > Is this due to the gtk builder 2.16? I mean does the main window steal the > key_presses or something? > > I had previously tried an example without a gtk gui (don't remember the > example). There a callback was connected and it could get events > containing both mouse click and keypress. I mean if I pressed the mouse > button while keeping doen say 'e' I could get form event.key that 'e' was > pressed when I click the mouse. > > I have to use gtk for the rest of the GUI so when I tried to pack the > canvas into gtk I got the problem that callbacks and connections didn't > work. i guess it has to do with that gtk has it's own callback system. > > If anybody has some example code, tips or tricks, I would very much > appreciate that. I cannot at the moment provide an example code due to > project deadline, but will do afterwards. I've seen this before when an mpl canvas is placed in a gtk notebook widget for example. The containing class swallows the kwy press event. What has worked for me before is to grab the focus with the mpl FigureCanvas: canvas.grab_focus() Thanks, JDH |