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/*******************************************************************************
* Copyright (c) 2004, 2006 QNX Software Systems 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:
* QNX Software Systems - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.debug.internal.ui.views.modules;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.cdt.debug.internal.ui.views.AbstractViewerState;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.debug.core.DebugException;
import org.eclipse.jface.viewers.TreePath;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeItem;
/**
* Memento of the expanded and selected items in a modules viewer.
*/
public class ModulesViewerState extends AbstractViewerState {
/**
* Constructor for ModulesViewerState.
*/
public ModulesViewerState( TreeViewer viewer ) {
super( viewer );
}
/* (non-Javadoc)
* @see org.eclipse.cdt.debug.internal.ui.views.AbstractViewerState#encodeElement(org.eclipse.swt.widgets.TreeItem)
*/
protected IPath encodeElement( TreeItem item ) throws DebugException {
StringBuffer path = new StringBuffer( item.getText() );
TreeItem parent = item.getParentItem();
while( parent != null ) {
path.insert( 0, parent.getText() + IPath.SEPARATOR );
parent = parent.getParentItem();
}
return new Path( path.toString() );
}
/* (non-Javadoc)
* @see org.eclipse.cdt.debug.internal.ui.views.AbstractViewerState#decodePath(org.eclipse.core.runtime.IPath, org.eclipse.debug.internal.ui.model.viewers.AsynchronousTreeModelViewer)
*/
protected TreePath decodePath( IPath path, TreeViewer viewer ) throws DebugException {
String[] names = path.segments();
Tree tree = viewer.getTree();
TreeItem[] items = tree.getItems();
List elements = new ArrayList();
elements.add( viewer.getInput() );
boolean pathFound = false;
for( int i = 0; i < names.length; i++ ) {
String name = names[i];
TreeItem item = findItem( name, items );
if ( item != null ) {
pathFound = true;
elements.add( item.getData() );
items = item.getItems();
}
}
if ( pathFound ) {
return new TreePath( elements.toArray() );
}
return null;
}
private TreeItem findItem( String name, TreeItem[] items ) {
for( int i = 0; i < items.length; i++ ) {
TreeItem item = items[i];
if ( item.getText().equals( name ) ) {
return item;
}
}
return null;
}
}
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