package org.geogebra.common.util.clipper;
import java.util.ArrayList;
import java.util.List;
class PolyTree extends PolyNode {
private final List<PolyNode> allPolys = new ArrayList<PolyNode>();
public void Clear() {
allPolys.clear();
childs.clear();
}
public List<PolyNode> getAllPolys() {
return allPolys;
}
public PolyNode getFirst() {
if (!childs.isEmpty()) {
return childs.get(0);
}
return null;
}
public int getTotalSize() {
int result = allPolys.size();
// with negative offsets, ignore the hidden outer polygon ...
if (result > 0 && childs.get(0) != allPolys.get(0)) {
result--;
}
return result;
}
}