private void HighlightCenter(PointCollection col, IEnumerable <TabWellItem> sourceTabs, TabWellItem item)
{
var relativeOrigin = (UIElement)DockHost?.ContentHost ?? Window.GetWindow(TargetHost);
var hostOffset = TargetHost.TranslatePoint(new Point(), relativeOrigin);
if (TargetHost is DocumentContainer)
{
col.Add(hostOffset);
col.Add(new Point(hostOffset.X + TargetArea.Width, hostOffset.Y));
col.Add(new Point(hostOffset.X + TargetArea.Width, hostOffset.Y + TargetArea.Height));
col.Add(new Point(hostOffset.X, hostOffset.Y + TargetArea.Height));
}
else
{
var well = TargetHost as TabWellBase;
var first = well.FirstContainer;
if (item == null)
{
item = first;
}
var firstOffset = first?.TranslatePoint(new Point(), relativeOrigin) ?? hostOffset;
var itemOffset = item?.TranslatePoint(new Point(), relativeOrigin) ?? hostOffset;
var itemHeight = sourceTabs.Max(t => t.ActualHeight);
var itemWidth = sourceTabs.Sum(t => t.ActualWidth);
if (TargetHost is DocumentWell)
{
col.Add(new Point(hostOffset.X, firstOffset.Y + itemHeight)); //well top-left
col.Add(new Point(itemOffset.X, itemOffset.Y + itemHeight)); //item bottom-left
col.Add(new Point(itemOffset.X, itemOffset.Y)); //item top-left
col.Add(new Point(itemOffset.X + itemWidth, itemOffset.Y)); //item top-right
col.Add(new Point(itemOffset.X + itemWidth, itemOffset.Y + itemHeight)); //item bottom-right
col.Add(new Point(hostOffset.X + TargetHost.ActualWidth, itemOffset.Y + itemHeight)); //well top-right
col.Add(new Point(hostOffset.X + TargetHost.ActualWidth, hostOffset.Y + TargetHost.ActualHeight)); //well bottom-right
col.Add(new Point(hostOffset.X, hostOffset.Y + TargetHost.ActualHeight)); //well bottom-left
}
else
{
col.Add(new Point(hostOffset.X, hostOffset.Y)); //well top-left
col.Add(new Point(hostOffset.X + TargetHost.ActualWidth, hostOffset.Y)); //well top-right
col.Add(new Point(hostOffset.X + TargetHost.ActualWidth, itemOffset.Y)); //well bottom-right
if (well.Items.Count > 1) //tab panel visible
{
col.Add(new Point(itemOffset.X + itemWidth, itemOffset.Y)); //item top-right
col.Add(new Point(itemOffset.X + itemWidth, itemOffset.Y + itemHeight)); //item bottom-right
col.Add(new Point(itemOffset.X, itemOffset.Y + itemHeight)); //item bottom-left
col.Add(new Point(itemOffset.X, itemOffset.Y)); //item top-left
}
col.Add(new Point(hostOffset.X, itemOffset.Y)); //well bottom-left
}
}
}
internal void AlignToTarget(TargetArgs args)
{
if (args.DockContainer != DockHost)
{
DockHost = args.DockContainer;
if (DockHost == null)
{
DockArea = Rect.Empty;
}
else
{
DockArea = new Rect(
DockHost.ContentHost.TranslatePoint(new Point(), this),
DockHost.ContentHost.RenderSize
);
}
}
var host = args.TabWell as FrameworkElement ?? args.DocumentContainer;
if (host != TargetHost)
{
TargetHost = host;
if (TargetHost == null)
{
TargetArea = Rect.Empty;
}
else
{
TargetArea = new Rect(
TargetHost.TranslatePoint(new Point(), this),
TargetHost.RenderSize
);
}
}
var isAllTools = args.SourceItems.All(i => i.ItemType == TabItemType.Tool);
CanDockOuter = isAllTools;
if (TargetHost is DocumentWell)
{
CanDropCenter = true;
CanDockTarget = isAllTools;
var panel = TargetHost.FindVisualAncestor <DocumentContainer>();
CanSplitHorizontal = panel?.Orientation == Orientation.Horizontal || panel?.Items.Count <= 1;
CanSplitVertical = panel?.Orientation == Orientation.Vertical || panel?.Items.Count <= 1;
}
else if (TargetHost is DocumentContainer)
{
CanDropCenter = true;
CanDockTarget = isAllTools;
CanSplitHorizontal = CanSplitVertical = false;
}
else if (TargetHost is ToolWell)
{
CanDockTarget = false;
CanSplitHorizontal = CanSplitVertical = CanDropCenter = isAllTools;
}
else
{
CanDockTarget = CanSplitHorizontal = CanSplitVertical = CanDropCenter = false;
}
DockTargetButton.UpdateCursor();
UpdateHighlightPath(args.SourceItems, args.TabItem);
}