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slow

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rotalever:
Hmm, it really looks like if CB NEEDS GTK2... That is bad. I think GTK1 would have been fast enought.

mikeandmore:
i personally think it is the CB's notebook widget that slow down the speed...

See i have tested the wxScintilla - which was used by CB - Sample on my computer, it works fine...
So I think is when you input something or drag something on the editor, the editor will produce an UPDATE_UI message the the FlatNoteBook.
and let the FlatNoteBook to redraw it...It's the redraw algrithm during the draw that slow down the speed.

thomas:
Are you certain about this?

If you edit wxFlatNotebook.cpp, lines 771ff like this:
void wxPageContainer::OnPaint(wxPaintEvent & event)
{/*
   wxBufferedPaintDC dc(this);
   wxFNBRendererPtr render = wxFNBRendererMgrST::Get()->GetRenderer( GetParent()->GetWindowStyleFlag() );

   render->DrawTabs(this, dc, event);
*/}
does the problem persist?

We have postulated many times what might be causing this, update_ui messages being one thing, but rather firing off too many. However, most of this is theory so far, no really hard evidence.

If you could prove that it is the actual tab drawing code which causes the slowdown (if it disappears after commenting out that section), this would be great. Then Eran would probably be able to fix this issue by inserting 2-3 lines of code to filter out surplus events.

eranif:
I am using wxFlatNotebook on FC6, FC7 & Ubuntu 7.04 - all works fast.
To prove the point, I suggest running the demo application provided with wxFlatNotebook (which uses wxTextCtrl and not using wxScintilla).

If it is indeed wxFlatNotebook, I will be more than happy to fix it.

Eran

thomas:
Actually, I doubt it is wxFlatNotebook, rather I think it is our fault because we fire off too many events (and wxWidgets creates several copies of each on top).
But if it was really the drawing of wxFlatNotebook that caused the slowdown, we could really deem ourselves happy, finally having a pivot point. :)

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