public void SendToBack(Figure figure)
{
if (!Includes (figure))
return;
FigureCollection.Remove (figure);
FigureCollection.Insert (0, figure);
figure.Invalidate ();
}
public override sealed void Remove(Figure figure)
{
if (!FigureCollection.Contains (figure))
return;
figure.Parent = null;
FigureCollection.Remove (figure);
figure.FigureInvalidated -= OnChildInvalidated;
figure.Invalidate ();
OnChildRemoved (new FigureEventArgs (figure, figure.DisplayBox));
}
public void BringToFront(Figure figure)
{
if (!Includes (figure))
return;
FigureCollection.Remove (figure);
FigureCollection.Add (figure);
figure.Invalidate ();
}
public override sealed void Add(Figure figure)
{
if (FigureCollection.Contains (figure))
return;
if (figure.Parent != null) {
throw new Exception ("Can't add a figure which already has a parent");
}
FigureCollection.Add (figure);
figure.Parent = this;
figure.FigureInvalidated += OnChildInvalidated;
figure.Invalidate ();
OnChildAdded (new FigureEventArgs (figure, figure.DisplayBox));
}
public void RemoveFromSelection(Figure figure)
{
selection.Remove (figure);
figure.SetAttribute (FigureAttribute.Selected, false);
figure.Invalidate ();
}
public void AddToSelection(Figure figure)
{
if (!IsFigureSelected (figure) && Drawing.Includes (figure)) {
selection.Add (figure);
figure.SetAttribute (FigureAttribute.Selected, true);
figure.Invalidate ();
}
}