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import com.sun.star.accessibility.XAccessibleContext;
import java.util.HashMap;
abstract class NodeMapCallback
{
public abstract void Apply (AccTreeNode aNode);
}
/** This map translates from XAccessible objects to our internal
representations.
*/
class NodeMap
{
public NodeMap ()
{
maXAccessibleToNode = new HashMap ();
}
/** Clear the whole map.
*/
public void Clear ()
{
maXAccessibleToNode.clear();
}
/** @return
whether the new node was different from a previous one
repspectively was the first one set.
*/
public boolean InsertNode (XAccessibleContext xContext, AccessibleTreeNode aNode)
{
AccessibleTreeNode aPreviousNode = (AccessibleTreeNode)maXAccessibleToNode.put (
xContext,
aNode);
return aPreviousNode != aNode;
}
protected void RemoveNode (AccessibleTreeNode aNode)
{
try
{
if ((aNode != null) && (aNode instanceof AccTreeNode))
{
maXAccessibleToNode.remove (((AccTreeNode)aNode).getContext());
}
}
catch (Exception e)
{
System.out.println ("caught exception while removing node "
+ aNode + " : " + e);
e.printStackTrace();
}
}
public void ForEach (NodeMapCallback aFunctor)
{
Object[] aNodes = maXAccessibleToNode.values().toArray();
for (int i=0; i<aNodes.length; i++)
{
if (aNodes[i] != null && (aNodes[i] instanceof AccTreeNode))
{
try
{
aFunctor.Apply ((AccTreeNode)aNodes[i]);
}
catch (Exception e)
{
System.out.println ("caught exception applying functor to "
+ i + "th node " + aNodes[i] + " : " + e);
e.printStackTrace();
}
}
}
}
AccessibleTreeNode GetNode (XAccessibleContext xContext)
{
return (AccessibleTreeNode)maXAccessibleToNode.get (xContext);
}
AccessibleTreeNode GetNode (Object aObject)
{
if (aObject instanceof XAccessibleContext)
return GetNode ((XAccessibleContext)aObject);
else
return null;
}
XAccessibleContext GetAccessible (AccessibleTreeNode aNode)
{
if ((aNode != null) && (aNode instanceof AccTreeNode))
return ((AccTreeNode)aNode).getContext();
else
return null;
}
boolean IsMember (XAccessibleContext xContext)
{
return maXAccessibleToNode.containsKey(xContext);
}
boolean ValueIsMember (AccessibleTreeNode aNode)
{
return maXAccessibleToNode.containsValue(aNode);
}
private HashMap maXAccessibleToNode;
}
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