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;
}
internal static NodeState SaveState(TreeViewPad pad, ITreeNavigator nav)
{
NodeState state = SaveStateRec (pad, nav);
if (state == null) return new NodeState ();
else return state;
}
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;
}
XmlElement ToXml(XmlDocument doc, TreeViewPad.TreeOptions parentOptions)
{
XmlElement el = doc.CreateElement ("Node");
if (NodeName != null)
el.SetAttribute ("name", NodeName);
el.SetAttribute ("expanded", Expanded.ToString ());
if (Selected)
el.SetAttribute ("selected", "True");
TreeViewPad.TreeOptions ops = Options;
if (ops != null) {
foreach (DictionaryEntry de in ops) {
object parentVal = parentOptions != null ? parentOptions [de.Key] : null;
if (parentVal != null && !parentVal.Equals (de.Value) || (parentVal == null && de.Value != null) || parentOptions == null) {
XmlElement eop = doc.CreateElement ("Option");
eop.SetAttribute ("id", de.Key.ToString());
eop.SetAttribute ("value", de.Value.ToString ());
el.AppendChild (eop);
}
}
}
if (ChildrenState == null) return el;
foreach (NodeState ces in ChildrenState) {
XmlElement child = ces.ToXml (doc, ops != null ? ops : parentOptions);
el.AppendChild (child);
}
return el;
}
public void Restore(TreeViewPad view)
{
view.RestoreTreeState (parent);
}
internal void Initialize(TreeViewPad tree)
{
this.tree = tree;
}
public TreeNodeNavigator(TreeViewPad pad, Gtk.TreeIter iter)
{
this.pad = pad;
tree = pad.tree;
store = pad.store;
currentIter = iter;
}
public TreeViewPadMemento(TreeViewPad treeView)
{
this.treeView = treeView;
}
public TreeNodeNavigator(TreeViewPad pad)
: this(pad, Gtk.TreeIter.Zero)
{
}
internal TreeBuilderContext(TreeViewPad pad)
{
this.pad = pad;
}
public TreeBuilder(TreeViewPad pad, Gtk.TreeIter iter)
: base(pad, iter)
{
}
public TreeBuilder(TreeViewPad pad)
: base(pad)
{
}
public TreeOptions(TreeViewPad pad, Gtk.TreeIter iter)
{
this.pad = pad;
this.iter = iter;
}