private static bool GetTreeIterForItem(out Gtk.TreeIter itemIter, Gtk.TreeIter parentIter, Gtk.TreeStore treeStore, FileNodeViewModel item, int index)
{
// if item is null, just get iterator at index
itemIter = Gtk.TreeIter.Zero;
var validIter = false;
var putAtFront = (index < 0) && (item == null);
if (parentIter.Equals(Gtk.TreeIter.Zero))
{
if (putAtFront)
{
validIter = treeStore.IterChildren(out itemIter);
}
else
{
validIter = (treeStore.IterNChildren() > index) && treeStore.IterNthChild(out itemIter, index);
}
}
else
{
if (putAtFront)
{
validIter = treeStore.IterChildren(out itemIter, parentIter);
}
else
{
validIter = (treeStore.IterNChildren(parentIter) > index) && treeStore.IterNthChild(out itemIter, parentIter, index);
}
}
var node = validIter ? treeStore.GetValue(itemIter, 0) as FileNodeViewModel : null;
var foundIt = (node == null) || (item == null) || object.ReferenceEquals(node, item);
return(foundIt && !itemIter.Equals(Gtk.TreeIter.Zero));
}
public int GetChildrenCount(TreePosition pos)
{
if (pos == null)
{
return(Tree.IterNChildren());
}
IterPos tpos = GetIterPos(pos);
if (tpos.ChildrenCount != -1)
{
return(tpos.ChildrenCount);
}
return(tpos.ChildrenCount = Tree.IterNChildren(tpos.Iter));
}
protected virtual void OnCompleteRadiobuttonToggled(object sender, System.EventArgs e)
{
if (completeRadiobutton.Active)
{
Gtk.TreeIter iter;
if (group_store.IterNChildren() > 0)
{
group_store.GetIterFirst(out iter);
group_store.SetValue(iter, 0, true);
while (group_store.IterNext(ref iter))
{
group_store.SetValue(iter, 0, true);
}
}
}
}
public int GetChildrenCount(TreePosition pos)
{
IterPos tpos = (IterPos)pos;
if (tpos.ChildrenCount != -1)
{
return(tpos.ChildrenCount);
}
if (pos == null)
{
tpos.ChildrenCount = Tree.IterNChildren();
}
else
{
tpos.ChildrenCount = Tree.IterNChildren(tpos.Iter);
}
return(tpos.ChildrenCount);
}
void AddHandler(Gtk.TreeIter iter, string name)
{
internalChange = true;
Gtk.TreeIter piter = iter;
while (store.IterDepth(piter) != 0)
{
store.IterParent(out piter, piter);
}
Signal signal = GetSignal(iter);
if (signal == null)
{
if (name != "")
{
SignalDescriptor sd = (SignalDescriptor)store.GetValue(iter, ColDescriptorObject);
signal = new Signal(sd);
signal.Handler = name;
selection.Signals.Add(signal);
SetSignalData(iter, signal);
store.SetValue(iter, ColSignalTextWeight, (int)Pango.Weight.Bold);
if (store.IterDepth(iter) == 1)
{
SetEmptySingalRow(store.AppendNode(iter), signal.SignalDescriptor, false);
}
else
{
store.IterParent(out iter, iter);
SetEmptySingalRow(store.AppendNode(iter), signal.SignalDescriptor, false);
}
}
}
else
{
if (name != "")
{
signal.Handler = name;
store.SetValue(iter, ColHandler, signal.Handler);
}
else
{
selection.Signals.Remove(signal);
if (store.IterDepth(iter) == 1)
{
if (store.IterNChildren(iter) == 1)
{
SetEmptySingalRow(iter, signal.SignalDescriptor, true);
// Remove the empty row
store.IterChildren(out iter, iter);
store.Remove(ref iter);
}
else
{
Gtk.TreeIter citer;
store.IterChildren(out citer, iter);
Signal csignal = GetSignal(citer);
store.Remove(ref citer);
SetSignalData(iter, csignal);
if (store.IterNChildren(iter) == 1)
{
tree.CollapseRow(store.GetPath(iter));
}
}
}
else
{
store.Remove(ref iter);
}
}
}
UpdateGroupStatus(piter);
internalChange = false;
}
