On 3/20/07, Jef Driesen <jefdriesen hotmail com> wrote:
I am writing my first gtkmm application (actually my first GUI
application). To get familiar with the toolkit (both gtk and gtkmm), I
studied the code of some existing applications. And in one of those
applications I found a construct that I would like to use in my own
application, but I don't know how to port the gtk code to gtkmm.
The main application contains a treeview and a secondary dialog is used
to edit the treeview entries. But if you try to edit an entry that is
already "open", the existing dialog is activated instead of creating a
new one (see code snippet below). How can I do this in C++?
And how do I automatically destroy the dialog after clicking the (close)
button?
[code removed]
I think I'd make a column in your TreeModelColumnRecord a smart
pointer to the dialog.
I'm not certain what I'd do to delete the window when its closed. You
could connect to the dialog's signal_hide, bind the smart pointer to
the call back and search the tree view for the corresponding row, but
that seems rather inefficient. I suppose you could store weak pointers
in the tree view, the shared ptr's in a std::set and then your search
for the dialog to delete would be a bit faster.
Generally, I would only allow editing of a single row at a time to
prevent this but I could imagine there are times when having the
multiple row selection would be a good thing.