How to set a wx.textctrl can editable or readonly?

Frank Millman frank at chagford.com
Thu Jan 19 05:57:08 CET 2006


Tim Chase wrote:
> >     def onGotFocus(self,evt):
> >         if readonly:
> >             self.Navigate()
> >
> > This causes the control to react as if the user press 'tab'. By default
> > it always tabs forwards, but it takes an optional 'IsForward' argument
> > - set it to False to tab backwards.
>
> Just a pedantic query, not having wx under my fingertips at the
> moment...what happens if you three controls, A (r/w), B
> (read-only), and C (r/w) in that focus order...if use shift+tab
> in control C, does it properly go back to A, or does it move you
> forward again to control C.
>
You have to control it yourself, but wx gives you the tools to do so.
You can register an event handler at panel level called
wx.EVT_NAVIGATION_KEY It is triggered each time tab or shift-tab is
pressed, and has a method called GetDirection(), which returns True for
forwards (i.e. tab) and False for backwards (i.e. shift-tab). You can
use this to maintain a 'direction' attribute, which you can pass as an
argument to self.Navigate(). It will then always navigate in the
correct direction.

> Additionally, you should be able to copy text from a read-only
> control, so ousting the focus may not be quite the right thing to do.
>
Good point. Alternative approaches would be to trap EVT_KEY_DOWN or
EVT_TEXT to detect and block attempts to modify the contents of the
control.

Frank




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