On Sun, Oct 6, 2013 at 2:07 PM, Terry Brown <[email protected]> wrote:
To make euro signs with ctrl-alt-e I had to set the keyboard layout to
> DE (German), I assume you've done something similar, and comment out
> (add #):
>
> # set-find-anywhere = Alt-Ctrl-e
>
> in leoSettings.leo#@settings-->Keyboard shortcuts-->@keys EKR
> bindings-->@shortcuts Find commands
>
> But rather than commenting it out in the system's settings file, it
> would be better to unset it in the myLeoSettings.leo
>
> Edward - is there a way to do that, to remove a shortcut assigned in
> leoSettings.leo from myLeoSettings.leo?
>
Haha. Two big sighs in one evening. There is a *lot* of code involved in
this question.
The answer to your question is kinda yes and no. You can't completely
remove a shortcut, but you can assign it to another command.
I think that doing the following is *supposed* to work:
self-insert-command = Alt-Ctrl-E
but it doesn't for two reasons:
1. (Easy) At present, there is no official name for the
self-insert-command command. The command name is commented out in the
command-name table with the explanation:
# Exists, but can not be executed via the minibuffer.
It's easy enough to re-enable the command, and I will do so. But alas...
2. (Probably not too hard) The selfInsertCommand method doesn't work for
Alt-Ctrl characters.
The event argument to selfInsertCommand is a leoKeyEvent, *not* a Qt event.
At present the leoKeyEvent does not contain the actual QKeyEvent. But it
*should* be possible to insert the proper character into the body pane
given the original key event ;-)
Two tricky settings come into play:
@bool enable_alt_ctrl_bindings = True
@bool ignore_unbound_non_ascii_keys
Hah. I don't think the second setting even exists in leoSettings.leo. But
the default value for a non-existent setting, False, is good enough.
The first setting is set to True by default. But if it is False *all*
Alt-Ctrl keys will be passed (via a *long* path) to selfInsertChar. Given
the original QKeyEvent, selfInsertChar will be able to insert the proper
key in the body pane ;-)
Conclusions
These problems should be fixed for 4.11b1 as follows:
A. Pass the original QKeyEvent in every leoKeyEvent.
B. self-insert-command must be a real command, even though it will never do
anything if executed from the minibuffer.
This will allow Victor to create bindings like::
self-insert-char = Alt-Ctrl-E
and similarly for all the Alt Gr keys he uses. This should be simpler than
setting @bool enable_alt_ctrl_bindings = False, which would disable useful
key bindings.
Edward
P.S. I have spent several hours on this reply. The first draft discussed
the bowels of Leo's key-handling code. The less said about that the better!
EKR
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