private void _toolStripCaption_CaptionDrag(object sender, MouseEventArgs e)
{
Point pointInScreen = this.PointToScreen(e.Location);
DockControlContainer container = _manager.GetContainerAtPoint(_manager.PointToClient(pointInScreen));
if (container == null)
{
Rectangle dragRectangle = DockControlHelpers.GetDropXorDragRect(_manager, pointInScreen, DockingBarSize);
if (!dragRectangle.IsEmpty)
{
_dragger.SetRectangle(_manager.RectangleToScreen(dragRectangle));
return;
}
}
else
{
Rectangle rectangleToDraw = GetContainerDragDrawRectangle(container, pointInScreen);
if (!rectangleToDraw.IsEmpty)
{
_dragger.SetRectangle(rectangleToDraw);
return;
}
if (container.Tabbed)
{
_dragger.SetRectangle(container.RectangleToScreen(container.ClientRectangle));
return;
}
else
{
DockingControl control = container.GetDockingControlAtPoint(container.PointToClient(pointInScreen));
if (control != null)
{
Point pointInControl = control.PointToClient(pointInScreen);
rectangleToDraw = GetContolDragDrawRectangle(container, control, pointInControl);
_dragger.SetRectangle(control.RectangleToScreen(rectangleToDraw));
return;
}
}
}
_dragger.MoveTo(e.Location);
}
