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// **********************************************************************
//
// Copyright (c) 2003-2007 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
package IceGridGUI.Application;
import javax.swing.tree.DefaultTreeModel;
import java.util.Enumeration;
import IceGrid.*;
import IceGridGUI.*;
//
// An editable TreeNode that holds a list of children
//
abstract class ListTreeNode extends TreeNode
{
public Enumeration children()
{
return new Enumeration()
{
public boolean hasMoreElements()
{
return _p.hasNext();
}
public Object nextElement()
{
return _p.next();
}
private java.util.Iterator _p = _children.iterator();
};
}
public boolean getAllowsChildren()
{
return true;
}
public javax.swing.tree.TreeNode getChildAt(int childIndex)
{
if(childIndex < 0)
{
throw new ArrayIndexOutOfBoundsException(childIndex);
}
else if(childIndex < _children.size())
{
return (javax.swing.tree.TreeNode)_children.get(childIndex);
}
else
{
throw new ArrayIndexOutOfBoundsException(childIndex);
}
}
public int getChildCount()
{
return _children.size();
}
public int getIndex(javax.swing.tree.TreeNode node)
{
return _children.indexOf(node);
}
public boolean isLeaf()
{
return _children.isEmpty();
}
public Editor getEditor()
{
if(_editor == null)
{
_editor = new Editor();
}
return _editor;
}
protected Editor createEditor()
{
assert false;
return null;
}
protected ListTreeNode(boolean brandNew, TreeNode parent, String id)
{
super(parent, id);
_editable = new Editable(brandNew);
}
void write(XMLWriter writer) throws java.io.IOException
{
java.util.Iterator p = _children.iterator();
while(p.hasNext())
{
TreeNode node = (TreeNode)p.next();
node.write(writer);
}
}
void insertChild(TreeNode child, boolean fireEvent)
throws UpdateFailedException
{
DefaultTreeModel treeModel = fireEvent ?
getRoot().getTreeModel() : null;
if(!insertSortedChild(child, _children, treeModel))
{
throw new UpdateFailedException(this, child.getId());
}
}
void insertChildren(java.util.List newChildren, boolean fireEvent)
throws UpdateFailedException
{
DefaultTreeModel treeModel = fireEvent ?
getRoot().getTreeModel() : null;
String badChildId = insertSortedChildren(newChildren, _children, treeModel);
if(badChildId != null)
{
throw new UpdateFailedException(this, badChildId);
}
}
int removeChild(TreeNode child)
{
int index = getIndex(child);
_children.remove(child);
getRoot().getTreeModel().nodesWereRemoved(this,
new int[]{index},
new Object[]{child});
return index;
}
void removeChildren(String[] childIds)
{
removeSortedChildren(childIds, _children, getRoot().getTreeModel());
}
void childrenChanged(java.util.List children)
{
childrenChanged(children, getRoot().getTreeModel());
}
Editable getEditable()
{
return _editable;
}
javax.swing.ComboBoxModel createComboBoxModel()
{
return new ComboBoxModel();
}
javax.swing.ComboBoxModel createComboBoxModel(Object item)
{
return new ComboBoxModel(item);
}
//
// Adapts ListTreeNode to a ComboBoxModel
//
class ComboBoxModel extends javax.swing.AbstractListModel
implements javax.swing.ComboBoxModel
{
public Object getElementAt(int index)
{
if(_firstItem != null)
{
if(index == 0)
{
return _firstItem;
}
else
{
return getChildAt(index - 1);
}
}
else
{
return getChildAt(index);
}
}
public int getSize()
{
if(_firstItem != null)
{
return getChildCount() + 1;
}
else
{
return getChildCount();
}
}
public Object getSelectedItem()
{
return _selectedItem;
}
public void setSelectedItem(Object obj)
{
if(obj != _selectedItem)
{
_selectedItem = obj;
fireContentsChanged(this, -1, -1);
}
}
ComboBoxModel(Object firstItem)
{
_firstItem = firstItem;
}
ComboBoxModel()
{
_firstItem = null;
}
private final Object _firstItem;
private Object _selectedItem;
}
protected final java.util.LinkedList _children = new java.util.LinkedList();
protected Editable _editable;
static private Editor _editor;
}
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