/// <summary>
/// Constructs a sheet by calling <see cref="M:Northwoods.Go.GoSheet.CreatePaper" />,
/// <see cref="M:Northwoods.Go.GoSheet.CreateBackgroundImage" />, and <see cref="M:Northwoods.Go.GoSheet.CreateGrid" />.
/// </summary>
public GoSheet()
{
base.Initializing = true;
myPaper = CreatePaper();
Add(myPaper);
myBackgroundImage = CreateBackgroundImage();
Add(myBackgroundImage);
myGrid = CreateGrid();
Add(myGrid);
myLeft = MakeBoundary();
Add(myLeft);
myRight = MakeBoundary();
Add(myRight);
myTop = MakeBoundary();
Add(myTop);
myBottom = MakeBoundary();
Add(myBottom);
base.Initializing = false;
LayoutChildren(null);
}
/// <summary>
/// Update the internal reference fields when a child object is removed.
/// </summary>
/// <param name="obj"></param>
public override bool Remove(GoObject obj)
{
bool result = base.Remove(obj);
if (obj == myPaper)
{
myPaper = null;
return(result);
}
if (obj == myBackgroundImage)
{
myBackgroundImage = null;
return(result);
}
if (obj == myGrid)
{
myGrid = null;
return(result);
}
if (obj == myLeft)
{
myLeft = null;
return(result);
}
if (obj == myRight)
{
myRight = null;
return(result);
}
if (obj == myTop)
{
myTop = null;
return(result);
}
if (obj == myBottom)
{
myBottom = null;
}
return(result);
}
