2003-01-18  Gustavo Giráldez  <gustavo.giraldez@gmx.net>

	* gdl/gdl-dock-master.c: layout_changed signal is now emitted
	whenever some item is docked or detached, either by the user or
	programatically.  Previously, it was only emitted when the user
	changed the layout.  Also, the signal is emitted in an idle
	handler to prevent multiple emission.  The global "locked"
	property is now calculated more efficiently, and only reflects the
	locked state for items which can be locked, i.e. those which have
	a grip.
	(gdl_dock_master_add): Connect to "dock" and "detach" signals and
	"locked" notify for every dock item added to track layout changes
	and global "locked" property.
	(gdl_dock_master_remove): Queue a "layout_changed" signal and
	notify "locked" property if appropiate.

	* gdl/gdl-dock-layout.c: Items tree model updates are now
	incremental, not clear and fill.  Models are created when the
	layout object is created and are updated whenever we receive
	a layout_changed signal from the master.
	(gdl_dock_layout_layout_changed_cb): Update items model.
	(gdl_dock_layout_attach): Idem.

	* gdl/gdl-dock-item.c: Removed GdlDockItemMenuData structure used
	to hold popup information, since it's no longer necessary.  The
	"layout_changed" signal in the dock master is no longer emitted in
	lock_cb and hide_cb methods, since that's now tracked by the
	master itself.
	(gdl_dock_item_set_property): Emit layout_changed in the dock
	master when the locked property changes.

	* gdl/gdl-dock.c (gdl_dock_floating_window_delete_event_cb): Don't
	emit layout_changed in the master, since that's now handled
	transparently.