atk_component_set_[extents, position, size]() implementation
- From: Oisin Boydell <Oisin Boydell Sun COM>
- To: gnome-accessibility-list gnome org
- Subject: atk_component_set_[extents, position, size]() implementation
- Date: Mon, 9 Jul 2001 14:41:32 +0100 (BST)
The ATK API has functions atk_component_set_extents(),
atk_component_set_position() and atk_component_set_size() which return TRUE if
successful, FALSE otherwise. The functions are implemented in gailwidget.c.
The position or size of a child of a container cannot be set in coordinate units
unless the container specifically supports that. This means that the above
functions will first need to test if the widget is a top level widget, or a
child of a container which supports resizing and/or repositioning in coordinate
units. If the widget is not, then the function must return FALSE.
As far as I know, the only containers that support repositioning/resizing of
their children are GtkFixed and GtkLayout. So if the widget to be
resized/repositioned using the above functions is not a top-level widget (these
are always resizable/repositionable with respect to coordinate units) or the
child of a GtkFixed or GtkLayout, then the functions should return FALSE.
If the widget is top-level then gtk_widget_set_uposition() and
gtk_widget_set_usize() will be used. If the widget is a child of a GtkFixed or
GtkLayout, then gtk_layout_move()/gtk_layout_set_size() or gtk_fixed_move() will
be used.
Does this sound reasonable?
Any comments?
I will start implementing this soon.
******************************************************
Oisin Boydell
Sun Microsystems Ireland
Phone: +353 (0)1 8199778
Mobile: +353 (0)86 3045117
******************************************************
[
Date Prev][
Date Next] [
Thread Prev][
Thread Next]
[
Thread Index]
[
Date Index]
[
Author Index]