Hi Edward
On Tuesday, 12 August 2014 17:43:08 UTC+1, Edward K. Ream wrote:
>
> On Tue, Aug 12, 2014 at 10:03 AM, jkn <[email protected]
> <javascript:>> wrote:
>
> > some of the most IMO convenient key-bindings in Brief need some special
> > effort before they can work in Leo. For instance:
> >
> > 1) The numeric key-pad keys are used for special purposes
> > 1a) <keypad-minus> is cut (region if selected, else current line)
> > 1b) <keypad-plus> is copy (region if selected, else current line)
> > 1c) <keypad-insert> is insert from clipboard
> > This works brilliantly, but would require some Qt KeyHandler work to
> > disambiguate the numeric keypad keys from the 'standard' plus, minus,
> insert
> > keys
> >
> > 2) the use of multiple presses of <home> and <end>
> > 2a) a single <home> moves the cursor to the beginning of the current
> line
> > 2b) a double <home><home> moves the cursor to the top of the current
> page
> > (as viewed)
> > 2b) a triple <home><home><home> moves the cursor to the top of the
> current
> > buffer (would correspond to outline, I guess)
> > Similarly for multiple presses of <end>
>
> Interesting. I don't remember, if I ever knew, how Qt handles
> double/triple key presses.
>
I have no idea either! the triple-key stuff would be handled in Leo, not Qt.
I made a start on this via lossage(), but it was corresponding action
('move to the *visible* top of the node being edited') that I haven't got
around to
>
> As you probably know, key handling in Leo (and really, everywhere) is
> fraught with complexities. That's not going to change any time soon.
>
> There are two places to start any investigation of keystrokes in Leo:
> k.masterKeyHandler and LeoQtEventFilter.eventFiler. Both contain many
> tracing options. In particular, eventFilter and it's helpers can
> trace whatever events Qt is generating. Understanding what events Leo
> actually gets is the first step. Be sure to check out
> LeoQtEventFilter.traceEvent. It can be your friend.
>
Yeah, thanks. IIRC the distinction between eg. pressing the 'standard'
'plus'
key, and pressing the one on the keypad, is rather buried within Qt (not
Leo).
It is probably OS-dependent too. I haven't started chasing that one down,
sadly...
Jon N
> HTH.
>
> Edward
>
--
You received this message because you are subscribed to the Google Groups
"leo-editor" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/leo-editor.
For more options, visit https://groups.google.com/d/optout.
