Package org.locationtech.udig.tool.info.internal.display

Source Code of org.locationtech.udig.tool.info.internal.display.FeatureInfoDisplay

/*
*    uDig - User Friendly Desktop Internet GIS client
*    http://udig.refractions.net
*    (C) 2004, Refractions Research Inc.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* (http://www.eclipse.org/legal/epl-v10.html), and the Refractions BSD
* License v1.0 (http://udig.refractions.net/files/bsd3-v10.html).
*
*/
package org.locationtech.udig.tool.info.internal.display;

import java.io.IOException;

import org.locationtech.udig.project.ui.controls.FeatureTableControl;
import org.locationtech.udig.tool.info.InfoDisplay;
import org.locationtech.udig.tool.info.LayerPointInfo;

import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.geotools.data.DataUtilities;
import org.geotools.data.FeatureReader;
import org.geotools.feature.FeatureCollection;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;

/**
* Nested browser used to display LayerPointInfo.
*
* @author Jody Garnett
* @since 0.3
*/
public class FeatureInfoDisplay extends InfoDisplay {
   
    /** <code>content</code> field */
    protected FeatureTableControl content;
   
    public Control getControl() {
        return content.getControl();
    }
   
    public void createDisplay( Composite parent ) {       
        // content = new Text( parent, SWT.DEFAULT );
        content = new FeatureTableControl();
        content.createTableControl( parent );
    }
   
    /**
     * Focus the browser onto LayerPointInfo.getRequestURL.
     *
     * @see org.locationtech.udig.tool.info.InfoDisplay#setInfo(org.locationtech.udig.project.render.LayerPointInfo)
     * @param info
     */
    public void setInfo( LayerPointInfo info ) {
        if( info == null ) {           
            content.clear();           
        }
        else {           
            try {
                Object value = info.acquireValue();
                if( value == null ){
                    // make empty ?
                    content.clear();                   
                }
                if( value instanceof FeatureCollection ){
                    content.setFeatures( (FeatureCollection<SimpleFeatureType, SimpleFeature>) value );
                }
                else if( value instanceof FeatureReader){
                    FeatureReader<SimpleFeatureType, SimpleFeature> reader = (FeatureReader<SimpleFeatureType, SimpleFeature>) value;
                    content.setFeatures( DataUtilities.collection(reader) );                   
                }
                else if (value instanceof FeatureCollection ){
                    content.setFeatures( (FeatureCollection<SimpleFeatureType, SimpleFeature>) value );
                }
                else {
                    content.clear();                   
                }
            } catch (IOException e) {
                content.clear();
            }
        }
    }       
}
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