private void ArrangeContentPresenter(FrameworkElement element, ColumnDefinition contentColumn, RowDefinition contentRow)
{
element.ApplyGridPosition();
Grid.SetColumn(element, ItemsHost.ColumnDefinitions.IndexOf(contentColumn));
Grid.SetRow(element, ItemsHost.RowDefinitions.IndexOf(contentRow));
if (ReferenceEquals(element, ContentPresenter))
{
_childrenDefinitions[element] = new UIChildDefinition(contentColumn, contentRow);
}
}
protected internal override void ArrangeItems()
{
if (TemplateContract.IsAttached == false)
{
return;
}
_childrenDefinitions.Clear();
ItemsHost.Children.Clear();
ItemsHost.Children.Add(ContentPresenter);
var leftCol = 0;
var rightCol = ItemsHost.ColumnDefinitions.Count - 1;
var topRow = 0;
var bottomRow = ItemsHost.RowDefinitions.Count - 1;
foreach (var item in ReverseOrderedItems)
{
var splitter = _itemSplitterDictionary[item];
ItemsHost.Children.Add(item);
ItemsHost.Children.Add(splitter);
var colIndex = leftCol;
var rowIndex = topRow;
var splitColIndex = leftCol;
var splitRowIndex = topRow;
var colSpan = 1;
var rowSpan = 1;
switch (DockLayout.GetDockSide(item))
{
case Dock.Left:
colIndex = leftCol;
splitColIndex = leftCol + 1;
leftCol += 2;
break;
case Dock.Top:
rowIndex = topRow;
splitRowIndex = topRow + 1;
topRow += 2;
break;
case Dock.Right:
colIndex = rightCol;
splitColIndex = rightCol - 1;
rightCol -= 2;
break;
case Dock.Bottom:
rowIndex = bottomRow;
splitRowIndex = bottomRow - 1;
bottomRow -= 2;
break;
}
switch (GetOrientation(item))
{
case Orientation.Horizontal:
rowSpan = bottomRow - topRow + 1;
SetResizeDirection(splitter, GridResizeDirection.Columns);
ItemsHost.ColumnDefinitions[splitColIndex].Width = GridLength.Auto;
_childrenDefinitions[splitter] = new UIChildDefinition(ItemsHost.ColumnDefinitions[splitColIndex], null);
_childrenDefinitions[item] = new UIChildDefinition(ItemsHost.ColumnDefinitions[colIndex], null);
break;
case Orientation.Vertical:
colSpan = rightCol - leftCol + 1;
SetResizeDirection(splitter, GridResizeDirection.Rows);
ItemsHost.RowDefinitions[splitRowIndex].Height = GridLength.Auto;
_childrenDefinitions[splitter] = new UIChildDefinition(null, ItemsHost.RowDefinitions[splitRowIndex]);
_childrenDefinitions[item] = new UIChildDefinition(null, ItemsHost.RowDefinitions[rowIndex]);
break;
}
SetDefinitionSize(item);
Grid.SetColumn(item, colIndex);
Grid.SetColumnSpan(item, colSpan);
Grid.SetRow(item, rowIndex);
Grid.SetRowSpan(item, rowSpan);
Grid.SetColumn(splitter, splitColIndex);
Grid.SetColumnSpan(splitter, colSpan);
Grid.SetRow(splitter, splitRowIndex);
Grid.SetRowSpan(splitter, rowSpan);
}
var contentColumn = ItemsHost.ColumnDefinitions[leftCol];
var contentRow = ItemsHost.RowDefinitions[topRow];
_contentDefinition = new UIChildDefinition(contentColumn, contentRow);
ArrangeContentPresenter(ContentPresenter, contentColumn, contentRow);
UpdateContentDefinitionsSize();
}
