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LayerTreeUsage.java
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LayerTreeUsage.java
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/*
* Copyright 2006-2009, 2017, 2020 United States Government, as represented by the
* Administrator of the National Aeronautics and Space Administration.
* All rights reserved.
*
* The NASA World Wind Java (WWJ) platform is licensed under the Apache License,
* Version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*
* NASA World Wind Java (WWJ) also contains the following 3rd party Open Source
* software:
*
* Jackson Parser – Licensed under Apache 2.0
* GDAL – Licensed under MIT
* JOGL – Licensed under Berkeley Software Distribution (BSD)
* Gluegen – Licensed under Berkeley Software Distribution (BSD)
*
* A complete listing of 3rd Party software notices and licenses included in
* NASA World Wind Java (WWJ) can be found in the WorldWindJava-v2.2 3rd-party
* notices and licenses PDF found in code directory.
*/
package gov.nasa.worldwindx.examples;
import gov.nasa.worldwind.avlist.AVKey;
import gov.nasa.worldwindx.examples.util.HotSpotController;
import gov.nasa.worldwind.util.layertree.LayerTree;
import gov.nasa.worldwind.layers.RenderableLayer;
import gov.nasa.worldwind.util.WWUtil;
import java.awt.*;
/**
* Example of using {@link gov.nasa.worldwind.util.tree.BasicTree} to display a list of layers.
*
* @author pabercrombie
* @version $Id: LayerTreeUsage.java 1171 2013-02-11 21:45:02Z dcollins $
*/
public class LayerTreeUsage extends ApplicationTemplate
{
public static class AppFrame extends ApplicationTemplate.AppFrame
{
protected LayerTree layerTree;
protected RenderableLayer hiddenLayer;
protected HotSpotController controller;
public AppFrame()
{
super(true, false, false); // Don't include the layer panel; we're using the on-screen layer tree.
this.layerTree = new LayerTree();
// Set up a layer to display the on-screen layer tree in the WorldWindow.
this.hiddenLayer = new RenderableLayer();
this.hiddenLayer.addRenderable(this.layerTree);
this.getWwd().getModel().getLayers().add(this.hiddenLayer);
// Mark the layer as hidden to prevent it being included in the layer tree's model. Including the layer in
// the tree would enable the user to hide the layer tree display with no way of bringing it back.
this.hiddenLayer.setValue(AVKey.HIDDEN, true);
// Refresh the tree model with the WorldWindow's current layer list.
this.layerTree.getModel().refresh(this.getWwd().getModel().getLayers());
// Add a controller to handle input events on the layer tree.
this.controller = new HotSpotController(this.getWwd());
// Size the WorldWindow to take up the space typically used by the layer panel. This illustrates the
// screen space gained by using the on-screen layer tree.
Dimension size = new Dimension(1000, 600);
this.setPreferredSize(size);
this.pack();
WWUtil.alignComponent(null, this, AVKey.CENTER);
}
}
public static void main(String[] args)
{
ApplicationTemplate.start("WorldWind Layer Tree", AppFrame.class);
}
}