/**
* Copyright (c) 2002-2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM - Initial API and implementation
*/
package org.eclipse.emf.mapping.presentation;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
public class ComposedSelection implements IStructuredSelection, IComposedSelection
{
protected ISelection [] selections;
protected ISelection primarySelection;
public ComposedSelection(ISelection primarySelection, ISelection [] selections)
{
this.primarySelection = primarySelection;
this.selections = selections;
}
public boolean isEmpty()
{
return primarySelection == null || primarySelection.isEmpty();
}
/**
* @deprecated
*/
@Deprecated
public Iterator<?> getElements()
{
return primarySelection instanceof IStructuredSelection ? ((IStructuredSelection)primarySelection).iterator() : null;
}
public Iterator<?> iterator()
{
return primarySelection instanceof IStructuredSelection ? ((IStructuredSelection)primarySelection).iterator() : null;
}
public Object [] toArray()
{
return primarySelection instanceof IStructuredSelection ? ((IStructuredSelection)primarySelection).toArray() : null;
}
public List<?> toList()
{
return primarySelection instanceof IStructuredSelection ? ((IStructuredSelection)primarySelection).toList() : null;
}
public Object getFirstElement()
{
return primarySelection instanceof IStructuredSelection ? ((IStructuredSelection)primarySelection).getFirstElement() : null;
}
public Object getPrimaryItem()
{
return primarySelection instanceof IStructuredSelection ? ((IStructuredSelection)primarySelection).getFirstElement() : null;
}
public int size()
{
return primarySelection instanceof IStructuredSelection ? ((IStructuredSelection)primarySelection).size() : 0;
}
public ISelection getSelection()
{
return primarySelection;
}
public ISelection [] getSelections()
{
return selections;
}
public IStructuredSelection getCombinedSelection()
{
List<Object> result = new ArrayList<Object>();
for (int i = 0; i < selections.length; ++i)
{
ISelection selection = selections[i];
if (selection instanceof IStructuredSelection)
{
List<?> list = ((IStructuredSelection)selection).toList();
result.addAll(list);
}
}
return new StructuredSelection(result);
}
@Override
public boolean equals(Object that)
{
if (this == that)
{
return true;
}
else if (!(that instanceof IComposedSelection))
{
return false;
}
else
{
IComposedSelection thatComposedSelection = (IComposedSelection)that;
ISelection thatPrimarySelection = thatComposedSelection.getSelection();
ISelection [] thatSelections = thatComposedSelection.getSelections();
if (selections.length == thatSelections.length)
{
for (int i = 0; i < selections.length; ++i)
{
if (selections[i] == primarySelection)
{
if (thatSelections[i] != thatPrimarySelection)
{
return false;
}
}
if (!selections[i].equals(thatSelections[i]))
{
return false;
}
}
return true;
}
else
{
return false;
}
}
}
@Override
public String toString()
{
StringBuffer result = new StringBuffer();
result.append("ComposedSection(");
if (selections != null)
{
for (int i = 0; i < selections.length; ++i)
{
if (selections[i] == primarySelection)
{
result.append('(');
result.append(selections[i]);
result.append(')');
}
else
{
result.append(selections[i]);
}
}
}
result.append(')');
return result.toString();
}
}