At Thu, 2 Mar 2017 11:12:16 +0000, Erich Rast wrote:
> Hi! I have a simple non-editable and non-resizable snip% class that in
> its draw function distinguishes whether it's selected or not. It works
> fine when I select it in a text% with the mouse.
> Now I want to select it in the text% when the user left-clicks on it,
> so I've overridden on-event and tried this:
> (define/public (select-this-snip)
> (define editor (send (get-admin) get-editor))
> (define pos (send editor get-snip-position this))
> (send editor set-position pos (+ pos 1)))
> It *does* select the snip in the sense that a selection background is
> drawn (which is visible on the edges, since the snip itself uses a
> rounded rectangle), but the snip itself is not drawn as highlighted,
> even though I check whether draw-caret is a pair in the draw method. It
> is correctly drawn when I select it manually with the mouse, though.
(send editor set-caret-owner #f)
to send keyboard focus back to the editor.
When you click a snip that has 'handles-events, then keyboard focus is
moved to the snip instead of to the enclosing editor.
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