bundles/org.simantics.browsing.ui.nattable/src/org/simantics/browsing/ui/nattable/override/TreeExpandAllCommandHandler.java

   1 /*******************************************************************************
   2  * Copyright (c) 2013 Dirk Fauth and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *    Dirk Fauth <dirk.fauth@gmail.com> - initial API and implementation
  10  *******************************************************************************/
  11 package org.simantics.browsing.ui.nattable.override;
  12
  13 import org.eclipse.nebula.widgets.nattable.command.ILayerCommandHandler;
  14 import org.eclipse.nebula.widgets.nattable.layer.ILayer;
  15 import org.eclipse.nebula.widgets.nattable.tree.TreeLayer;
  16 import org.eclipse.nebula.widgets.nattable.tree.command.TreeExpandAllCommand;
  17
  18 /**
  19  * Command handler for the TreeExpandAllCommand.
  20  * <p>
  21  * Will search over the whole tree structure in the associated TreeLayer to
  22  * identify expandable nodes and expand them one after the other.
  23  *
  24  * @author Dirk Fauth
  25  *
  26  * @see TreeLayer
  27  * @see TreeExpandAllCommand
  28  *
  29  */
  30 public class TreeExpandAllCommandHandler implements
  31         ILayerCommandHandler<TreeExpandAllCommand> {
  32
  33     /**
  34      * The TreeLayer to which this command handler is connected.
  35      */
  36     private final TreeLayer2 treeLayer;
  37
  38     /**
  39      *
  40      * @param treeLayer
  41      *            The TreeLayer to which this command handler should be
  42      *            connected.
  43      */
  44     public TreeExpandAllCommandHandler(TreeLayer2 treeLayer) {
  45         this.treeLayer = treeLayer;
  46     }
  47
  48     @Override
  49     public boolean doCommand(ILayer targetLayer, TreeExpandAllCommand command) {
  50         this.treeLayer.expandAll();
  51         return true;
  52     }
  53
  54     @Override
  55     public Class<TreeExpandAllCommand> getCommandClass() {
  56         return TreeExpandAllCommand.class;
  57     }
  58
  59 }