void InitTracker()
{
if (tracker == null)
{
tracker = new TreeTrackingCanvas(this);
AddChild(tracker);
QueueForReallocate();
}
}
public TreeViewCellBounds()
{
MinHeight = 120;
MinWidth = 100;
container = new VBox();
TreeView = new TreeView();
TreeStore = new TreeStore(triState, check, text, desc);
TreeView.GridLinesVisible = GridLines.Both;
TreeView.Columns.Add("TriCheck", triState);
TreeView.Columns.Add("Check", check);
TreeView.Columns.Add("Item", text);
TreeView.Columns.Add("Desc", desc, check, text);
TreeView.DataSource = TreeStore;
TreeStore.AddNode().SetValue(text, "One").SetValue(desc, "First").SetValue(triState, CheckBoxState.Mixed);
TreeStore.AddNode().SetValue(text, "Two").SetValue(desc, "Second").AddChild()
.SetValue(text, "Sub two").SetValue(desc, "Sub second");
TreeStore.AddNode().SetValue(text, "Three").SetValue(desc, "Third").AddChild()
.SetValue(text, "Sub three").SetValue(desc, "Sub third");
TreeView.ExpandAll();
TreeView.SelectionChanged += (sender, e) => UpdateTracker(TreeView.SelectedRow);
TreeView.MouseMoved += (sender, e) => UpdateTracker(TreeView.GetRowAtPosition(e.X, e.Y));
drawer = new TreeTrackingCanvas(this);
container.PackStart(TreeView, true);
container.PackStart(drawer);
AddChild(container);
if (currentRow == null)
{
currentRow = TreeStore.GetFirstNode();
}
}