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import java.util.Vector;
import com.sun.star.lang.IndexOutOfBoundsException;
/**
Base class for all tree nodes.
*/
class AccessibleTreeNode
{
/// The parent node. It is null for the root node.
protected AccessibleTreeNode maParent;
/// The object to be displayed.
private Object maDisplayObject;
public AccessibleTreeNode (Object aDisplayObject, AccessibleTreeNode aParent)
{
maDisplayObject = aDisplayObject;
maParent = aParent;
}
public void update ()
{
// Empty
}
public AccessibleTreeNode getParent ()
{
return maParent;
}
public Object getDisplayObject ()
{
return maDisplayObject;
}
public int getChildCount ()
{
return 0;
}
public AccessibleTreeNode getChild (int nIndex)
throws IndexOutOfBoundsException
{
throw new IndexOutOfBoundsException();
}
public AccessibleTreeNode getChildNoCreate (int nIndex)
throws IndexOutOfBoundsException
{
throw new IndexOutOfBoundsException();
}
public boolean removeChild (int nIndex)
throws IndexOutOfBoundsException
{
throw new IndexOutOfBoundsException();
}
public int indexOf (AccessibleTreeNode aNode)
{
return -1;
}
/** Create a path to this node by first asking the parent for its path
and then appending this object.
*/
public void createPath (java.util.Vector aPath)
{
if (maParent != null)
maParent.createPath (aPath);
aPath.add (this);
}
public Object[] createPath ()
{
Vector aPath = new Vector (1);
createPath (aPath);
return aPath.toArray();
}
public boolean isLeaf()
{
return true;
}
public String toString()
{
return maDisplayObject.toString();
}
/** get names of suported actions */
public String[] getActions ()
{
return new String[] {};
}
/** perform action */
public void performAction (int nIndex)
{
}
}
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