Re: [matplotlib-devel] help request: wx, tk, qt backend leave event

[John H. <jd...@gm...>]

On Tue, Dec 2, 2008 at 8:34 AM, Gregor Thalhammer
<gre...@gm...> wrote:

> If a mouse button is pressed while leaving the figure the behaviour is
> somewhat strange. First, a figure_leave_event is emitted. Then, further
> moving the mouse outside the figure a new figure_enter_event is created.
> This is the case since all mouse events, also movements outside the window,
> are captured as long as a mouse button is pressed. This is a very convenient
> behaviour for panning/zooming. However, when finally releasing the mouse
> button no figure_leave_event is triggered. With the GTK backend such an
> event is created.
> So what should be the desired behaviour?

Ahh, I hadn't considered this problem.  It arises because I am using
mpl location events to trigger the figure enter event.  The solution
is to use the gui event for the figure enter event too -- basically
the gui needs to call the canvas.enter_notify_event.  I added your
patch and modified gtk to handle the enter_notify_event in svn r6468.
Can you update, repatch wx to use it (and Darren qt)?


Any takers out their to add support to tk?
Thanks,
JDH