net.tourbook.ui.action.ActionExpandAll.java Source code

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Here is the source code for net.tourbook.ui.action.ActionExpandAll.java

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/*******************************************************************************
 * Copyright (C) 2005, 2014  Wolfgang Schramm and Contributors
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation version 2 of the License.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
 *******************************************************************************/
package net.tourbook.ui.action;

import net.tourbook.Messages;
import net.tourbook.application.TourbookPlugin;
import net.tourbook.common.util.ITourViewer;

import org.eclipse.jface.action.Action;
import org.eclipse.jface.viewers.ColumnViewer;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.widgets.Tree;

public class ActionExpandAll extends Action {

    private ITourViewer _tourViewer;

    public ActionExpandAll(final ITourViewer tourViewer) {

        super(null, AS_PUSH_BUTTON);

        _tourViewer = tourViewer;

        setText(Messages.App_Action_Expand_All_Tooltip);
        setToolTipText(Messages.App_Action_Expand_All_Tooltip);

        setImageDescriptor(TourbookPlugin.getImageDescriptor(Messages.Image__expand_all));
    }

    @Override
    public void run() {

        if (_tourViewer == null) {
            return;
        }

        final ColumnViewer viewer = _tourViewer.getViewer();
        if (viewer instanceof TreeViewer) {

            final TreeViewer treeViewer = (TreeViewer) viewer;
            final Tree tree = treeViewer.getTree();

            // disable redraw that the UI in not flickering
            tree.setRedraw(false);
            {
                treeViewer.expandAll();
            }
            tree.setRedraw(true);

        }
    }
}