InsertSubtopicAction.java

/* ******************************************************************************
 * Copyright (c) 2006-2012 XMind Ltd. and others.
 * 
 * This file is a part of XMind 3. XMind releases 3 and
 * above are dual-licensed under the Eclipse Public License (EPL),
 * which is available at http://www.eclipse.org/legal/epl-v10.html
 * and the GNU Lesser General Public License (LGPL), 
 * which is available at http://www.gnu.org/licenses/lgpl.html
 * See http://www.xmind.net/license.html for details.
 * 
 * Contributors:
 *     XMind Ltd. - initial API and implementation
 *******************************************************************************/
package org.xmind.ui.internal.actions;

import org.eclipse.jface.viewers.ISelection;
import org.xmind.gef.ui.actions.ISelectionAction;
import org.xmind.gef.ui.actions.RequestAction;
import org.xmind.gef.ui.editor.IGraphicalEditorPage;
import org.xmind.ui.actions.MindMapActionFactory;
import org.xmind.ui.internal.MindMapMessages;
import org.xmind.ui.mindmap.IMindMapImages;
import org.xmind.ui.mindmap.MindMapUI;
import org.xmind.ui.util.MindMapUtils;

public class InsertSubtopicAction extends RequestAction implements
        ISelectionAction {

    public InsertSubtopicAction(IGraphicalEditorPage page) {
        super(MindMapActionFactory.INSERT_SUBTOPIC.getId(), page,
                MindMapUI.REQ_CREATE_CHILD);
        setText(MindMapMessages.InsertSubtopic_text);
        setToolTipText(MindMapMessages.InsertSubtopic_toolTip);
        setImageDescriptor(MindMapUI.getImages().get(IMindMapImages.INSERT_SUB,
                true));
        setDisabledImageDescriptor(MindMapUI.getImages().get(
                IMindMapImages.INSERT_SUB, false));
    }

    public void setSelection(ISelection selection) {
        setEnabled(MindMapUtils.isSingleTopic(selection));
    }

}