public static IEnumerable <TreeIter> Childs(this TreeModel model, TreeIter parent)
{
List <TreeIter> childs = new List <TreeIter>();
if (parent.Equals(TreeIter.Zero))
{
for (int i = 0; i < model.IterNChildren(); i++)
{
TreeIter iter;
if (model.IterNthChild(out iter, i))
{
childs.Add(iter);
childs.AddRange(model.Childs(iter));
}
}
}
else
{
for (int i = 0; i < model.IterNChildren(parent); i++)
{
TreeIter iter;
if (model.IterNthChild(out iter, parent, i))
{
childs.Add(iter);
childs.AddRange(model.Childs(iter));
}
}
}
return(childs);
}
public override List <AppResult> Children(bool recursive = true)
{
if (resultIter == null || !resultIter.HasValue)
{
List <AppResult> children = new List <AppResult> ();
TModel.Foreach((m, p, i) => {
children.Add(new GtkTreeModelResult(ParentWidget, TModel, Column, i));
return(false);
});
return(children);
}
TreeIter currentIter = (TreeIter)resultIter;
if (!TModel.IterHasChild(currentIter))
{
return(null);
}
List <AppResult> newList = new List <AppResult> ();
for (int i = 0; i < TModel.IterNChildren(currentIter); i++)
{
TreeIter childIter;
if (TModel.IterNthChild(out childIter, currentIter, i))
{
newList.Add(new GtkTreeModelResult(ParentWidget, TModel, Column, childIter));
}
}
return(newList);
}
private bool GetPathAtRowAndCol(int r, int c, out TreePath path)
{
path = null;
if (r > (rows - 1) || r < 0 ||
c > (cols - 1) || c < 0)
{
return(false);
}
int index = (r * cols) + c;
if (index >= n_cells)
{
return(false);
}
if (model == null)
{
return(false);
}
TreeIter iter;
if (!model.IterNthChild(out iter, index))
{
return(false);
}
path = model.GetPath(iter);
return(true);
}
private bool IsSelectionValid(TreeIter selectedRow)
{
if (selectedRow.Equals(TreeIter.Zero))
{
return(false);
}
TreeModel model = treeViewMenu.Model;
if ((string)model.GetValue(selectedRow, 3) == KeyShortcuts.MENU_NEIGHBOURING_SHORTCUT)
{
int childrenCount = model.IterNChildren(selectedRow);
for (int i = 0; i < childrenCount; i++)
{
TreeIter row;
model.IterNthChild(out row, selectedRow, i);
if ((string)model.GetValue(row, 3) == KeyShortcuts.MENU_NEIGHBOURING_SHORTCUT &&
!((string)model.GetValue(row, 2)).Contains("/btn"))
{
return(false);
}
}
}
return(true);
}
List <AppResult> FetchIterChildren(TreeIter iter, GtkTreeModelResult result, bool recursive)
{
List <AppResult> newList = new List <AppResult> ();
if (!TModel.IterHasChild(iter))
{
return(newList);
}
GtkTreeModelResult previousSibling = null;
for (int i = 0; i < TModel.IterNChildren(iter); i++)
{
TreeIter childIter;
if (TModel.IterNthChild(out childIter, iter, i))
{
var child = new GtkTreeModelResult(ParentWidget, TModel, Column, childIter);
child.ParentNode = this;
child.PreviousSibling = previousSibling;
if (previousSibling != null)
{
previousSibling.NextSibling = child;
}
newList.Add(child);
if (recursive)
{
var childrenIter = FetchIterChildren(childIter, child, recursive);
newList.AddRange(childrenIter);
child.FirstChild = childrenIter.FirstOrDefault();
}
previousSibling = child;
}
}
result.FirstChild = newList.FirstOrDefault();
DisposeWithResult(result.FirstChild);
return(newList);
}
private bool TranslateCoords(int x, int y,
out TreePath path, out GridViewColumn col)
{
int c = orientation == Orientation.Vertical ? x : y;
int r = orientation == Orientation.Vertical ? y : x;
TreeIter i;
if (c >= visible.Count || !model.IterNthChild(out i, r))
{
col = null;
path = null;
return(false);
}
else
{
col = visible[c] as GridViewColumn;
path = new TreePath(r.ToString());
return(true);
}
}