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public class Roster : Object, Gtk.TreeModel {
private int stamp;
private Gee.TreeMap<string, Contact> entries = new Gee.TreeMap<string, Contact>();
public Roster() {
stamp = 0;
}
public void update_contact(Contact c) {
++stamp;
bool added = !entries.has_key(c.jid);
entries[c.jid] = c;
Gtk.TreeIter iter = Gtk.TreeIter();
iter.stamp = stamp;
iter.user_data = this;
iter.user_data2 = c;
Gtk.TreePath path = get_path(iter);
if (added)
row_inserted(path, iter);
else
row_changed(path, iter);
}
public Type get_column_type (int index) {
switch(index) {
case 0:
return typeof(Contact);
}
return Type.INVALID;
}
public Gtk.TreeModelFlags get_flags () {
return Gtk.TreeModelFlags.LIST_ONLY;
}
public bool get_iter (out Gtk.TreeIter iter, Gtk.TreePath path) {
if(path.get_depth() != 1)
return false;
int index = path.get_indices()[0];
if(index < 0 || index >= entries.size)
return false;
Gee.MapIterator<string, Contact> it = entries.map_iterator();
it.first();
for(int i = 0; i < index; ++i)
it.next();
iter.stamp = stamp;
iter.user_data = this;
iter.user_data2 = it.get_value();
return true;
}
public int get_n_columns () {
return 1;
}
public Gtk.TreePath get_path (Gtk.TreeIter iter) {
if(iter.stamp != stamp || iter.user_data != this)
return (Gtk.TreePath)null;
int index = 0;
foreach(Contact c in entries.values) {
if(c == iter.user_data2)
break;
++index;
}
return new Gtk.TreePath.from_indices(index, -1);
}
public void get_value (Gtk.TreeIter iter, int column, out Value value) {
if (column != 0 || iter.stamp != stamp || iter.user_data != this)
return;
Contact c = iter.user_data2 as Contact;
value = Value(typeof(Contact));
value.take_object(c);
}
public bool iter_children (out Gtk.TreeIter iter, Gtk.TreeIter? parent) {
if (parent != null) {
iter.stamp = -1;
return false;
}
return get_iter(out iter, new Gtk.TreePath.from_indices(0, -1));
}
public bool iter_has_child (Gtk.TreeIter iter) {
return false;
}
public int iter_n_children (Gtk.TreeIter? iter) {
if (iter == null)
return entries.size;
else
return 0;
}
public bool iter_next (ref Gtk.TreeIter iter) {
if(iter.stamp != stamp || iter.user_data != this)
return false;
bool next = false;
foreach(Contact c in entries.values) {
if(next) {
iter.user_data2 = c;
return true;
}
if(c == iter.user_data2)
next = true;
}
iter.stamp = -1;
return false;
}
public bool iter_nth_child (out Gtk.TreeIter iter, Gtk.TreeIter? parent, int n) {
if (parent != null) {
iter.stamp = -1;
return false;
}
return get_iter(out iter, new Gtk.TreePath.from_indices(n, -1));
}
public bool iter_parent (out Gtk.TreeIter iter, Gtk.TreeIter child) {
iter.stamp = -1;
return false;
}
public void ref_node (Gtk.TreeIter iter) {}
public void unref_node (Gtk.TreeIter iter) {}
}
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