[patch] Selection stats in statusbar

[Daniel]

On 18/08/2022 09:55, Jürgen Spitzmüller wrote:
> Am Mittwoch, dem 17.08.2022 um 19:40 +0200 schrieb Daniel:
>> What I did in
>>
>> https://www.lyx.org/trac/attachment/ticket/12422/0001-Show-word-count-in-status-bar.patch
>>
>> was just to hook it on GuiView::showMessage() because this would be
>> updated in all cases where text stuff changes.
> 
> showMessage() is triggered on any cursor action. That's way too often.
> E.g., it would fire down statistics unnecessarily if you move with the
> arrow keys through your document.

This shouldn't be an issue. The idea is that statistics are only 
generated after some time has passed without interruption. They are not 
shown immediately. Hence, continuous arrow key movement would not 
trigger statistics at all. (Same for continuous typing which is an 
advantage to the current implementation which continuously triggers 
statistics.)

> And I am not completely sure each relevant action triggers a message.
> 
> You need a more suitable signal that only emits when text is edited or
> loaded.
> 
>> I don't know what the "internal processes" are though.
> 
> You can use lfuns e.g. via the LyXServer mechanism or pipes. This can
> also be used to insert text or citations.

This seems to trigger showMessage() as well. Unless, we find a case 
where showMessage() wouldn't be triggered, it still seems to me worth a 
try before digging deeper.

Daniel