From 75345d9b5845e57c3f83ade2266f59fe01ac6572 Mon Sep 17 00:00:00 2001
From: Daniel Vogelheim <dvo@openoffice.org>
Date: Fri, 8 Mar 2002 16:30:18 +0000
Subject: Now use custom tree model in order to create data on-the-fly.

---
 toolkit/test/accessibility/AccTreeNode.java | 87 +++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 toolkit/test/accessibility/AccTreeNode.java

(limited to 'toolkit/test/accessibility/AccTreeNode.java')

diff --git a/toolkit/test/accessibility/AccTreeNode.java b/toolkit/test/accessibility/AccTreeNode.java
new file mode 100644
index 000000000000..6c01f7672050
--- /dev/null
+++ b/toolkit/test/accessibility/AccTreeNode.java
@@ -0,0 +1,87 @@
+
+import java.util.Vector;
+
+/**
+ * The node type for the AccessibleTreeModel.
+ * This implements all the child-handling based on the appropriate
+ * NodeHandlers. Trivial nodes can be implemented by any Object
+ * type.
+ */
+class AccTreeNode
+{
+    private Vector aHandlers;       /// NodeHandlers for this node
+    private Object aDataObject;     /// the actual data object
+    private Object aDisplayObject;  /// object to be displayed
+
+    public AccTreeNode( Object aData )
+    {
+        this( aData, aData );
+    }
+
+    public AccTreeNode( Object aData, Object aDisplay )
+    {
+        aHandlers = new Vector();
+        aDataObject = aData;
+        aDisplayObject = aDisplay;
+    }
+
+    public Object getDataObject() { return aDataObject; }
+    public Object getDisplayObject() { return aDisplayObject; }
+
+    public void addHandler( NodeHandler aHandler )
+    {
+        aHandlers.add( aHandler );
+    }
+
+
+    /** iterate over handlers and return child sum */
+    public int getChildCount()
+    {
+        int nRet = 0;
+        for(int i = 0; i < aHandlers.size(); i++)
+        {
+            nRet += ((NodeHandler)aHandlers.get(i)).
+                getChildCount( aDataObject );
+        }
+        return nRet;
+    }
+
+    /** iterate over handlers until the child is found */
+    public Object getChild(int nIndex)
+    {
+        if( nIndex >= 0 )
+        {
+            for(int i = 0; i < aHandlers.size(); i++)
+            {
+                // check if this handler has the child, and if not
+                // search with next handler
+                NodeHandler aHandler = (NodeHandler)aHandlers.get(i);
+                int nCount = aHandler.getChildCount( aDataObject );
+                if( nCount > nIndex )
+                    return aHandler.getChild( aDataObject, nIndex );
+                else
+                    nIndex -= nCount;
+            }
+        }
+
+        // nothing found?
+        return null;
+    }
+
+    /** this node is a leaf if have no handlers, or is those
+            handlers show no children */
+    public boolean isLeaf()
+    {
+        return (aHandlers.size() == 0) || (getChildCount() == 0);
+    }
+
+    public boolean equals(Object aOther)
+    {
+        return (this == aOther) || aDataObject.equals( aOther );
+    }
+
+    public String toString()
+    {
+        return aDisplayObject.toString();
+    }
+}
-- 
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