one model, two viewer
- From: "Xi Yang" <jiandingzhe 163 com>
- To: gtk-app-devel-list gnome org
- Subject: one model, two viewer
- Date: Wed, 15 Feb 2012 22:55:13 +0800 (CST)
Hi, everyone!
I'm making an Gtk application, which has a table (GtkTreeView), and a customized canvas widget providing
graphical view, both corresponding to same data (GtkTreeModel).
I want to synchronize the selection state between the table and the canvas. When people change the selection
in table, or click on an item in canvas, both of them should change their selection: select to corresponding
row, and highlight on corresponding item.
Now the problem comes: GtkTreeSelection emits the 'changed' signal, no matter it is caused by mouse click or
by program. If I organize callbacks in the way below, the callback will fall into a cycle.
on_table_change {
change_model
}
on_canvas_item_change {
change_model
}
on_model_change {
change_table_selection
change_item_rendering
}
So, how should I organize those callbacks? Thanks a lot!!!
[
Date Prev][
Date Next] [
Thread Prev][
Thread Next]
[
Thread Index]
[
Date Index]
[
Author Index]