Application: gvSIG desktop

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

*

* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

*

* 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; either version 2

* of the License, or (at your option) any later version.

*

* 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

*

* For more information, contact:

*

*  Generalitat Valenciana

*   Conselleria d'Infraestructures i Transport

*   Av. Blasco Ib??ez, 50

*   46010 VALENCIA

*   SPAIN

*

*      +34 963862235

*   gvsig@gva.es

*      www.gvsig.gva.es

*

*    or

*

*   IVER T.I. S.A

*   Salamanca 50

*   46005 Valencia

*   Spain

*

*   +34 963163400

*   dac@iver.es

*/

package es.gva.cit.gvsig.gazetteer.loaders;

import java.awt.Color;

import java.awt.geom.Rectangle2D;

import com.iver.andami.PluginServices;

import com.iver.cit.gvsig.fmap.core.FPoint2D;

import com.iver.cit.gvsig.fmap.core.IGeometry;

import com.iver.cit.gvsig.fmap.core.ShapeFactory;

import com.iver.cit.gvsig.fmap.core.v02.FConstant;

import com.iver.cit.gvsig.fmap.core.v02.FSymbol;

import com.iver.cit.gvsig.fmap.layers.GraphicLayer;

import com.iver.cit.gvsig.fmap.rendering.FGraphicLabel;

import es.gva.cit.gazetteer.querys.Feature;

import es.gva.cit.gvsig.catalogClient.loaders.AbstractLoader;

/**

 * This class is used to load a new feature like a layer in gvSIG

 * 

 * @author Jorge Piera Llodra (piera_jor@gva.es)

 */

public class FeatureLoader extends AbstractLoader{     

    /**

     * It makes a zoom in gvSIG

     * @param

     * feature

     * @param focus

     * If the view must be focused in the toponim place

     * @param

     * removeOld

     * If the old searches have to be removed

     * @return

     * true or false if fail

     */

    public boolean load(Feature feature,boolean isGotoClicked,boolean isRemoveOldClicked) {

        addAndDrawLabel(feature,isRemoveOldClicked);

        if (isGotoClicked){

            focusCenter(feature);

        }        

                return true;

        }    

    /**

     * This method focus the toponim in the center of the view 

     * @param feature

     * Feature that contains the coordinates

     */

    private void focusCenter(Feature feature){

        com.iver.cit.gvsig.gui.View activeView = 

                        (com.iver.cit.gvsig.gui.View) PluginServices.getMDIManager().getActiveView();

        if ((feature.getCoordinates().getX() + feature.getCoordinates().getY()/2) < 100){

            activeView.getMapControl().getViewPort().setExtent(new Rectangle2D.Double(feature.getCoordinates().getX() - 0.05,

                feature.getCoordinates().getY() - 0.05,

                0.1,

                0.1));

        }else{            

            activeView.getMapControl().getViewPort().setExtent(new Rectangle2D.Double(feature.getCoordinates().getX() - 5000,

                feature.getCoordinates().getY() - 5000,

                10000,

                10000));

        }          

    } 

    /**

     * It adds a new Label to the current view

     * @param feature

     * To obtain the coordinates and the toponim name

     * @param isRemoveOldClicked

     * To remove or keep the old searches

     */

    private void addAndDrawLabel(Feature feature,boolean isRemoveOldClicked){

        com.iver.cit.gvsig.gui.View activeView = 

                        (com.iver.cit.gvsig.gui.View) PluginServices.getMDIManager().getActiveView();

        GraphicLayer lyr = activeView.getMapControl().getMapContext().getGraphicsLayer();

        if (isRemoveOldClicked){

            lyr.clearAllGraphics();

        }

        FSymbol theSymbol = new FSymbol(FConstant.SYMBOL_TYPE_TEXT); 

        theSymbol.setColor(Color.RED);

        theSymbol.setStyle(FConstant.SYMBOL_STYLE_MARKER_CIRCLE);

        theSymbol.setFontColor(Color.BLACK);

        int idSymbol = lyr.addSymbol(theSymbol);

        IGeometry geom = ShapeFactory.createPoint2D(new FPoint2D(feature.getCoordinates()));

        FGraphicLabel theLabel = new FGraphicLabel(geom, idSymbol, feature.getName());

        lyr.addGraphic(theLabel);

        activeView.getMapControl().drawGraphics();

        //This line could look stupid, but is necessary because grawGraphics does't

        //remove the old Graphics searched

        activeView.getMapControl().getViewPort().setExtent(activeView.getMapControl().getViewPort().getExtent());

    }

}