protected override void OnTemplateContractAttached()
{
base.OnTemplateContractAttached();
ItemsHost.ColumnDefinitions.Clear();
ItemsHost.RowDefinitions.Clear();
ItemsHost.ColumnDefinitions.Add(new ColumnDefinition());
ItemsHost.RowDefinitions.Add(new RowDefinition());
foreach (var item in Items)
{
AddGridDefinitions(item);
}
_splitterConstraintHelper.Grid = ItemsHost;
// Enqueue splitter measurements
var columnSplitter = new DockGridSplitter {
Opacity = 0, IsHitTestVisible = false
};
var rowSplitter = new DockGridSplitter {
Opacity = 0, IsHitTestVisible = false
};
SetResizeDirection(columnSplitter, GridResizeDirection.Columns);
SetResizeDirection(rowSplitter, GridResizeDirection.Rows);
ItemsHost.Children.Add(columnSplitter);
ItemsHost.Children.Add(rowSplitter);
columnSplitter.Loaded += OnMeasureSplitterLoaded;
rowSplitter.Loaded += OnMeasureSplitterLoaded;
InvalidateItemsArrange();
}
protected override void OnItemAdded(DockItem item)
{
var splitter = new DockGridSplitter();
splitter.SetZIndex(short.MaxValue);
_itemSplitterDictionary[item] = splitter;
splitter.LostMouseCapture += OnSplitterLostMouseCapture;
_splitterConstraintHelper.AddSplitter(splitter);
AddGridDefinitions(item);
InvalidateItemsArrange();
}