public void Undock(IDockContent content)
{
IDockLayout targetChild = null;
foreach (IDockLayout child in m_children)
{
if (child.HasChild(content))
{
targetChild = child;
break;
}
}
if (targetChild != null)
{
targetChild.Undock(content);
}
else
{
foreach (IDockLayout child in m_children)
{
if (child.HasDescendant(content))
{
targetChild = child;
break;
}
}
if (targetChild != null)
{
targetChild.Undock(content);
}
}
}
/// <summary>
/// Start dragging the given content. This includes undocking it from the UI,
/// creating new window with the content, and then start dragging it.</summary>
/// <param name="source"></param>
/// <param name="content">Content to drag</param>
internal void Drag(IDockLayout source, IDockContent content)
{
FrameworkElement sourceElement = (FrameworkElement)source;
ContentSettings settings = (content is TabLayout) ? ((TabLayout)content).Children[0].Settings : ((DockContent)content).Settings;
Size size = new Size(sourceElement.ActualWidth, sourceElement.ActualHeight);
Point offset = new Point(settings.Size.Width / 2, 3);
Point position = Mouse.GetPosition(this);
position = PointToScreen(position);
Matrix m = PresentationSource.FromVisual(Window.GetWindow(this)).CompositionTarget.TransformToDevice;
if (m != Matrix.Identity)
{
m.Invert();
position = m.Transform(position);
}
offset = Mouse.GetPosition(sourceElement);
offset.Y = offset.Y > 20 ? 10 : offset.Y;
position = (Point)(position - offset);
if (Mouse.LeftButton == MouseButtonState.Pressed)
{
source.Undock(content);
FloatingWindow wnd = new FloatingWindow(this, content, position, size);
wnd.Closing += ChildWindowClosing;
m_windows.Add(wnd);
wnd.Owner = Window.GetWindow(this);
wnd.Show();
wnd.DragMove();
}
}
