// finds the potential dockhost control at the specified location
internal Control FindDockHost(Floaty floaty, Point pt)
{
Control c = null;
if (FormIsHit(floaty.DockState.OrgDockHost, pt))
{
c = floaty.DockState.OrgDockHost; //assume toplevel control
}
if (floaty.DockOnHostOnly)
{
return(c);
}
foreach (Floaty f in Floaties)
{
if (f.DockState.Container.Visible && FormIsHit(f.DockState.Container, pt))
{
// add this line to dissallow docking inside floaties
//if (f.Visible) continue;
c = f.DockState.Container; // found suitable floating form
break;
}
}
return(c);
}
/// <summary>
/// attach this class to any dockable type of container control
/// to make it dockable.
/// Attach a container control and use it as a grip hande. The handle must support mouse move events.
/// Supply a splitter control to allow resizing of the docked container
/// </summary>
/// <param name="container">control to be dockable</param>
/// <param name="handle">handle to be used to track the mouse movement (e.g. caption of the container)</param>
/// <param name="splitter">splitter to resize the docked container (optional)</param>
public IFloaty Attach(ScrollableControl container, Control handle, Splitter splitter)
{
if (container == null)
{
throw new ArgumentException("container cannot be null");
}
if (handle == null)
{
throw new ArgumentException("handle cannot be null");
}
var _dockState = new DockState();
_dockState.Container = container;
_dockState.Handle = handle;
_dockState.OrgDockHost = _dockHost;
_dockState.Splitter = splitter;
var floaty = new Floaty(this);
floaty.Attach(_dockState);
_floaties.Add(floaty);
return(floaty);
}