org.polymap.core.mapeditor.contextmenu.LayerVisibleContribution.java Source code

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Here is the source code for org.polymap.core.mapeditor.contextmenu.LayerVisibleContribution.java

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/* 
 * polymap.org
 * Copyright 2012, Polymap GmbH. All rights reserved.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 */
package org.polymap.core.mapeditor.contextmenu;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import org.eclipse.swt.widgets.Menu;

import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.ActionContributionItem;
import org.eclipse.jface.action.ContributionItem;

import org.polymap.core.mapeditor.MapEditorPlugin;
import org.polymap.core.project.ILayer;

/**
 * Test contribution to the map context menu. 
 *
 * @author <a href="http://www.polymap.de">Falko Brutigam</a>
 */
public class LayerVisibleContribution extends ContributionItem implements IContextMenuContribution {

    private ContextMenuSite site;

    public LayerVisibleContribution() {
        //setVisible( true );
    }

    public IContextMenuContribution init(ContextMenuSite _site) {
        this.site = _site;
        return this;
    }

    public String getMenuGroup() {
        return GROUP_LOW;
    }

    public void fill(Menu parent, int index) {
        // sort
        List<ILayer> layers = new ArrayList(site.getMap().getLayers());
        Collections.sort(layers, new Comparator<ILayer>() {
            public int compare(ILayer layer1, ILayer layer2) {
                return layer1.getOrderKey() - layer2.getOrderKey();
            }
        });
        // create ActionContributionItems
        for (final ILayer layer : layers) {
            Action action = new Action(layer.getLabel(), Action.AS_CHECK_BOX) {
                public void run() {
                    layer.setVisible(!layer.isVisible());
                }
            };
            action.setChecked(layer.isVisible());
            action.setImageDescriptor(MapEditorPlugin.imageDescriptor("icons/etool16/layer_visible.png"));
            new ActionContributionItem(action).fill(parent, index);
        }
    }

}