| gvSIG desktop 1

/* 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 org.cresques.cts.ProjectionPool;

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.gazetteer.querys.Query;

import es.gva.cit.gvsig.gazetteer.DeleteSearchesModule;

/**

 * 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 {     

    /**

     * It makes a zoom in gvSIG

     * @param

     * feature

     * @param

     * query

     * Query that contains advanced options to search and

     * to show the results

     * @return

     * true or false if fail

     */

    public boolean load(Feature feature,Query query) {

        addAndDrawLabel(feature,

                        query.getOptions().getAspect().isKeepOld(),

                        query.getOptions().getAspect().isPaintCurrent());

        if (query.getOptions().getAspect().isGoTo()){

            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 (activeView.getProjection().getDatum().toString().indexOf("European_Datum_1950") > 0){

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

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

                                      10000,

                                      10000));

              }else{//WGS_1984

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

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

                  0.1,

                  0.1));

      }    

    } 

    /**

     * 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,boolean isMarkedPlaceClicked){

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

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

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

        //lyr.setProjection(ProjectionPool.get("EPSG:4326"));

        //lyr.setCoordTrans(ct);

        if (isRemoveOldClicked){

            lyr.clearAllGraphics();

        }

        if (isMarkedPlaceClicked){

                FSymbol theSymbol = new FSymbol(FConstant.SYMBOL_TYPE_TEXT); 

                theSymbol.setColor(Color.RED);

                theSymbol.setStyle(FConstant.SYMBOL_STYLE_MARKER_CIRCLE);

                theSymbol.setFontColor(Color.BLACK);

                theSymbol.setSizeInPixels(true);

                theSymbol.setSize(10);

                int idSymbol = lyr.addSymbol(theSymbol);

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

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

                lyr.addGraphic(theLabel);

                DeleteSearchesModule.setVisible();

                PluginServices.getMainFrame().enableControls();

            }

        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());

    }

  }