Application: gvSIG desktop

 * Created on 08-mar-2005

 *

 * 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

 *      +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

 */

        // teniendo en cuenta el boundingbox que toca.

        FLyrVect lyr = (FLyrVect) getCapa();

        ISpatialDB dbAdapter = (ISpatialDB) ((SingleLayer) capa).getSource();

        IVectorialDatabaseDriver dbDriver = (IVectorialDatabaseDriver) dbAdapter.getDriver();

        try {

			dbAdapter.start();

	        Selectable selectable=lyr.getRecordset();

			ICoordTrans ct = lyr.getCoordTrans();

			FBitSet bitSet = selectable.getSelection();

	        String strEPSG = viewPort.getProjection().getAbrev().substring(5);

	        // TODO: EXPLORAR LAS LEYENDAS PARA SABER LOS CAMPOS QUE VAMOS

	        // A NECESITAR RECUPERAR, PARA INCLUIR EN LA CONSULTA SOLO

	        {

	            l = (VectorialLegend) lyr.getLegend();

	        }

	        Rectangle2D rectAux = viewPort.getAdjustedExtent();

	        if (ct != null) {

	            ICoordTrans invertedCT = ct.getInverted();

	        }

	        IFeatureIterator geomIt = dbAdapter.getFeatureIterator(rectAux, strEPSG, usedFields);

	        if (geomIt == null)

	        {

	            // dbAdapter.stop();

	            return;

	        }

	        DriverAttributes attr = dbAdapter.getDriverAttributes();

	        boolean bMustClone = false;

	        if (attr != null)

	        {

	            if (attr.isLoadedInMemory())

	            {

	            }

	        }

	        int i;

	        ISymbol symbol;

	        SpatialCache cache = lyr.getSpatialCache();

	        		continue;

	        	}

	            IGeometry geom = feat.getGeometry();

	            // System.out.println("PINTANDO FEATURE " + feat.getID());

	            if (ct != null) {

	                if (bMustClone)

	                    geom = geom.cloneGeometry();

	                geom.reProject(ct);

	            }

	            i = dbAdapter.getRowIndexByFID(feat);

	            if (symbol == null) continue;

	            if (bitSet.get(i)) {

	                symbol = symbol.getSymbolForSelection();

				if (lyr.isSpatialCacheEnabled()) {

					if (cache.getMaxFeatures() >= cache.size()) {

						// Ya reproyectado todo

	            // symbol = l.getDefaultSymbol();

	            geom.drawInts(g,viewPort, symbol);

	        dbAdapter.stop();

		} catch (DriverIOException e) {

			throw new DriverException(e);

		}

    }

    /**

     * Processes features of layer whose geometries would

     * intersect rectangle passed as param by calling visitor's

     * visit method.

     * FIXME FeatureVisitor is designed to work with memory and

     * geometries (thats the reason for not to create Values, instead

     * of pass an index)

     * But DBDrivers recovers IGeometry and Values in dbAdapter.getFeatureIterator

     * method. We must add a visit(Feature) method to FeatureVisitor.

     */

    					throws DriverException, VisitException{

    	 FLyrVect lyr = (FLyrVect) getCapa();

         ISpatialDB dbAdapter = (ISpatialDB) ((SingleLayer) capa).getSource();

         try {

 			dbAdapter.start();

 			ICoordTrans ct = lyr.getCoordTrans();

 	        Rectangle2D rectAux = rect;

 	        if (ct != null) {

 	            ICoordTrans invertedCT = ct.getInverted();

 	        }

 	        IFeatureIterator geomIt = dbAdapter.getFeatureIterator(rectAux, strEPSG, null);

 	        if (geomIt == null){

 	        {

 	            if (attr.isLoadedInMemory())

 	            {

 	            }//if

 	        }//if

 	        int i;

        try {

			dbAdapter.start();

			ICoordTrans ct = lyr.getCoordTrans();

	        Rectangle2D rectAux = rect;

	        if (ct != null) {

	            ICoordTrans invertedCT = ct.getInverted();

	        }

	        FBitSet selection = new FBitSet();

	        IFeatureIterator geomIt = dbAdapter.getFeatureIterator(rectAux, strEPSG, null);

	        if (geomIt == null)

	        {

	            return selection;

	        }

	        DriverAttributes attr = dbAdapter.getDriverAttributes();

	        boolean bMustClone = false;

	        if (attr != null)

	        {

	            if (attr.isLoadedInMemory())

	            {

	            }

	        }

	        int i;

	        while (geomIt.hasNext())

	        {

	        	if(cancel != null)

	        		cancel.reportStep();

	        		if(cancel.isCanceled())

	        		{

	        			dbAdapter.stop();

	        			return selection;

	        	}

	        	IFeature feat = geomIt.next();

	            IGeometry geom = feat.getGeometry();

	            if (ct != null) {

	                if (bMustClone)

	                    geom = geom.cloneGeometry();

	                geom.reProject(ct);

	            }

	            i = dbDriver.getRowIndexByFID(feat);

	            if (geom.intersects(rect))

	            	selection.set(i, true);

	        }

	        dbAdapter.stop();

	        return selection;

		} catch (DriverIOException e) {

			throw new DriverException(e);

		}

	}

}