Re: Non-editable textview paste

[Thomas Christensen <christensenthomas gmail com>]

"muppet" <scott asofyet org> writes:

> Thomas Christensen said:
> > I was wondering if anybody could give me a pointer to how to catch
> > a paste (non-clipboard primarily), in a textview.
>
> I'm guessing that you want to catch a paste and redirect it to some
> other destination, which will eventually modify the textbuffer on
> its own.  But the

I want to fetch text pasted onto the (read-only) GtkTextView and
insert it into a GtkEntry.  It's kind of a TELNET program, with a
output window (GtkTextView) and a input window (GtkEntry).

> "non-clipboard primarily" makes me wonder if perhaps you mean "i
> just want to know whenever the buffer is modified"; if that's the
> case, you can just listen to the "changed" or "insert-text" signals
> on the TextBuffer.

Nope, it will not get modified by the paste.

> > I have tried the 'clipboard-paste' signal but is doesn't get
> > triggered on a plain (middle-mouse) paste, and it's not applicable
> > anyways since my textview is editable => 0.
>
> The selections are different; middle button paste is the PRIMARY,
> while Ctrl+V is CLIPBOARD.  Inside GtkTextView, the
> 'paste-clipboard' signal handles the CLIPBOARD selection, and the
> 'button-press-event' handler fetches and inserts the PRIMARY
> selection when button==2.

Ok, I can react to the "button 2" signal, but is there a more generic
"paste signal"?

Also, I have done '#perldoc Gtk2::Selection' and googled a little, but
I can't quite find how to fetch the selection.  I have seen mentions
of gtk_selection_convert at the GTK+ site's selections tutorial, which
I am not sure I fully understand; but Gtk2::Selection doesn't seem
have this method.

> Both of these eventually wind up down in
> gtk_text_buffer_insert_interactive() with default_editable==FALSE
> (since you've set your treeview to non-editable) and thus do
> nothing.

Can I somehow hook into this code?

> > Any hints would be well received.
>
> The paste-clipboard and button-press-event signals fire regardless
> of whether the view is editable, so you can still hook up to them
> and do stuff.

Yes, I now hook into 'button-press-event', but need to fetch the
pasted string.

Thanks for the pointers, and tell me if this is not the right place to
ask, since it is mostly GTK+ oriented.

Thomas