internal static void RestoreState(TreeViewPad pad, ITreeNavigator nav, NodeState es)
{
if (es == null) return;
Gtk.TreeIter it = nav.CurrentPosition._iter;
if (es.Options != null) {
pad.SetIterOptions (it, es.Options);
}
pad.ResetState (it);
nav.Expanded = es.Expanded;
if (es.ChildrenState != null) {
foreach (NodeState ces in es.ChildrenState) {
if (nav.MoveToChild (ces.NodeName, null)) {
RestoreState (pad, nav, ces);
nav.MoveToParent ();
}
}
}
if (es.Selected)
nav.Selected = true;
}
static NodeState FromXml(XmlElement elem, TreeViewPad.TreeOptions parentOptions)
{
NodeState ns = new NodeState ();
ns.NodeName = elem.GetAttribute ("name");
string expanded = elem.GetAttribute ("expanded");
ns.Expanded = (expanded == "" || bool.Parse (expanded));
ns.Selected = elem.GetAttribute ("selected") == "True";
XmlNodeList nodelist = elem.ChildNodes;
foreach (XmlNode nod in nodelist) {
XmlElement el = nod as XmlElement;
if (el == null) continue;
if (el.LocalName == "Option") {
if (ns.Options == null) {
if (parentOptions != null) ns.Options = parentOptions.CloneOptions (Gtk.TreeIter.Zero);
else ns.Options = new TreeViewPad.TreeOptions ();
}
ns.Options [el.GetAttribute ("id")] = bool.Parse (el.GetAttribute ("value"));
}
else if (el.LocalName == "Node") {
if (ns.ChildrenState == null) ns.ChildrenState = new ArrayList ();
ns.ChildrenState.Add (FromXml (el, ns.Options != null ? ns.Options : parentOptions));
}
}
return ns;
}
static NodeState SaveStateRec(TreeViewPad pad, ITreeNavigator nav)
{
Gtk.TreeIter it = nav.CurrentPosition._iter;
ArrayList childrenState = null;
if (nav.Filled && nav.MoveToFirstChild ()) {
do {
NodeState cs = SaveStateRec (pad, nav);
if (cs != null) {
cs.NodeName = nav.NodeName;
if (childrenState == null) childrenState = new ArrayList ();
childrenState.Add (cs);
}
} while (nav.MoveNext ());
nav.MoveToParent ();
}
TreeViewPad.TreeOptions ops = pad.GetIterOptions (it);
if (ops != null || nav.Expanded || childrenState != null || nav.Selected) {
NodeState es = new NodeState ();
es.Expanded = nav.Expanded;
es.Selected = nav.Selected;
es.Options = ops;
es.ChildrenState = childrenState;
return es;
} else
return null;
}
public void RestoreState(NodeState state)
{
NodeState.RestoreState (pad, this, state);
}