public virtual void setCap(DialLayer cap)
{
if (this.cap != null)
this.cap.removeChangeListener((DialLayerChangeListener) this);
this.cap = cap;
if (cap != null)
cap.addChangeListener((DialLayerChangeListener) this);
this.fireChangeEvent();
}
public virtual void addLayer(DialLayer layer)
{
if (layer == null)
{
string str = "Null 'layer' argument.";
Throwable.__\u003CsuppressFillInStackTrace\u003E();
throw new IllegalArgumentException(str);
}
else
{
this.layers.add((object) layer);
layer.addChangeListener((DialLayerChangeListener) this);
this.fireChangeEvent();
}
}
public virtual void setBackground(DialLayer background)
{
if (this.background != null)
this.background.removeChangeListener((DialLayerChangeListener) this);
this.background = background;
if (background != null)
background.addChangeListener((DialLayerChangeListener) this);
this.fireChangeEvent();
}
