Re: Optimize Notification processing

Hi,

> On May 18, 2025, at 3:40 PM, Jean Lalonde <[email protected]> wrote:
> 
> Hi,
> 
> I'd like to check with you if I have the optimal setting to minimize the number of notifications but get all those I need to update the status bar with the length of text in the editor, length of selected text, position of the caret (line, column), etc. and to process line auto-indentation (as explained in Scintilla Usage Notes).
> 
> I'm setting this event mask:
> 
> o_Sci.SETMODEVENTMASK(SCN_MODIFIED) ; eventMask can be SCN_MODIFIED or SC_MOD_INSERTTEXT|SC_MOD_DELETETEXT

I could be wrong, but you may be able to get away with just listening for `SCN_UPDATEUI` and `SCN_CHARADDED` and setting the mod mask to 0 to ignore them all:
- For `SCN_UPDATEUI`, `updated & (SC_UPDATE_CONTENT | SC_UPDATE_SELECTION) > 0` can be used for detecting position, content and selection changes.
- For `SCN_CHARADDED`, if `ch` is 10, the user pressed enter and you can perform auto-indent.

Cheers,
Mitchell

> 
> I'm setting the notification handler with this:
> 
> o_Sci.NOTIFY := "SciOnNotify"
> 
> And inside SciOnNotify(), I first update the status bar:
> 
> if (obj.SCNCode == SCN_CHARADDED and obj.Modifiers = 10) ; SCN_CHARADDED:=2001, 10 for LF
> {
> Gosub, AutoIndent
> }
> 
> ... and update the status bar:
> 
> if (obj.SCNCode = SCN_MODIFIED) ; SCN_MODIFIED:=2008
> and (obj.ModType != 20) ; SC_MOD_CHANGESTYLE := 0x4 | SC_PERFORMED_USER := 0x10 = 0x14 = 20
> {
> Gosub, UpdateStatusbar
> }
> 
> This works for what I need. But can it be optimized?
> 
> Thanks you for your input.
> 
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