svn-gvsig-desktop / tags / v1_0_2_Build_914 / libraries / libFMap / src / com / iver / cit / gvsig / fmap / operations / strategies / DefaultStrategy.java @ 12200
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package com.iver.cit.gvsig.fmap.operations.strategies; |
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import java.awt.Graphics2D; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.awt.image.BufferedImage; |
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import java.util.BitSet; |
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import javax.print.attribute.PrintRequestAttributeSet; |
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import org.apache.log4j.Logger; |
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import org.cresques.cts.ICoordTrans; |
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import com.iver.cit.gvsig.fmap.DriverException; |
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import com.iver.cit.gvsig.fmap.ViewPort; |
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import com.iver.cit.gvsig.fmap.core.IGeometry; |
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import com.iver.cit.gvsig.fmap.core.ISymbol; |
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import com.iver.cit.gvsig.fmap.drivers.DriverAttributes; |
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import com.iver.cit.gvsig.fmap.drivers.DriverIOException; |
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import com.iver.cit.gvsig.fmap.layers.FBitSet; |
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import com.iver.cit.gvsig.fmap.layers.FLayer; |
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import com.iver.cit.gvsig.fmap.layers.FLyrVect; |
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import com.iver.cit.gvsig.fmap.layers.ReadableVectorial; |
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import com.iver.cit.gvsig.fmap.layers.SelectableDataSource; |
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import com.iver.cit.gvsig.fmap.layers.layerOperations.AlphanumericData; |
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import com.iver.cit.gvsig.fmap.layers.layerOperations.ClassifiableVectorial; |
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import com.iver.cit.gvsig.fmap.layers.layerOperations.Selectable; |
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import com.iver.cit.gvsig.fmap.layers.layerOperations.SingleLayer; |
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import com.iver.cit.gvsig.fmap.rendering.VectorialLegend; |
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import com.iver.utiles.swing.threads.Cancellable; |
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import com.iver.utiles.swing.threads.CancellableMonitorable; |
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/**
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* Implementa la Strategy por defecto. Los m?todos que tendr?n en com?n la
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* mayor parte de las estrategias
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*/
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public class DefaultStrategy implements Strategy { |
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public static final int EQUALS = 0; |
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public static final int DISJOINT = 1; |
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public static final int INTERSECTS = 2; |
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public static final int TOUCHES = 3; |
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public static final int CROSSES = 4; |
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public static final int WITHIN = 5; |
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public static final int CONTAINS = 6; |
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public static final int OVERLAPS = 7; |
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private static Logger logger = Logger.getLogger(DefaultStrategy.class.getName()); |
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FLayer capa = null;
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/**
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* Crea un nuevo DefaultStrategy.
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*
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* @param capa DOCUMENT ME!
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*/
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public DefaultStrategy(FLayer capa) {
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this.capa = capa;
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SingleLayer foo = (SingleLayer) capa; |
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ClassifiableVectorial vectorial = (ClassifiableVectorial) capa; |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#queryByRect(java.awt.geom.Rectangle2D)
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*/
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public FBitSet queryByRect(Rectangle2D rect, CancellableMonitorable cancel) throws DriverException { |
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QueryByRectVisitor visitor = new QueryByRectVisitor();
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visitor.setRect(rect); |
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try {
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process(visitor, cancel); |
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} catch (VisitException e) {
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throw new RuntimeException( |
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"QueryByRectVisitor lanza una VisitException?");
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} |
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return visitor.getBitSet();
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#queryByShape(com.iver.cit.gvsig.fmap.fshape.IGeometry,
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* int)
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*/
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public FBitSet queryByShape(IGeometry g, int relationship, CancellableMonitorable cancel) |
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throws DriverException, VisitException {
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QueryByGeometryVisitor visitor = new QueryByGeometryVisitor(g, relationship);
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process(visitor); |
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return visitor.getBitSet();
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#getSelectionBounds()
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*/
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public Rectangle2D getSelectionBounds() { |
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return null; |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#createIndex()
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*/
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public void createIndex() { |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.operations.LayerOperations#draw(java.awt.image.BufferedImage,
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* java.awt.Graphics2D, ISymbol)
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*/
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public void draw(BufferedImage image, Graphics2D g, ViewPort viewPort, |
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Cancellable cancel) throws DriverException {
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try {
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ReadableVectorial adapter = ((SingleLayer) capa).getSource(); |
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ICoordTrans ct = getCapa().getCoordTrans(); |
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// logger.info("adapter.start()");
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adapter.start(); |
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// logger.info("getCapa().getRecordset().start()");
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SelectableDataSource rsSel = ((AlphanumericData) getCapa()).getRecordset(); |
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if (rsSel != null) |
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rsSel.start(); |
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int sc;
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Rectangle2D extent = viewPort.getAdjustedExtent();
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AffineTransform at = viewPort.getAffineTransform();
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sc = adapter.getShapeCount(); |
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// TODO: A revisar si es o no conveniente este sistema
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// de comunicaci?n con los drivers.
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DriverAttributes attr = adapter.getDriverAttributes(); |
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boolean bMustClone = false; |
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if (attr != null) |
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{ |
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if (attr.isLoadedInMemory())
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{ |
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bMustClone = attr.isLoadedInMemory(); |
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} |
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} |
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VectorialLegend l = (VectorialLegend) ((ClassifiableVectorial) capa).getLegend(); |
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FBitSet bitSet = null;
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if (getCapa() instanceof Selectable){ |
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Selectable selection = (Selectable) getCapa(); |
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bitSet = selection.getSelection(); |
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} |
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for (int i = 0; i < sc; i++) { |
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if (cancel.isCanceled()) {
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break;
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} |
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IGeometry geom = adapter.getShape(i); |
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if (geom == null) { |
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continue;
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} |
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if (ct != null) { |
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if (bMustClone)
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geom = geom.cloneGeometry(); |
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geom.reProject(ct); |
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} |
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// if (geom.intersects(extent)) {
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if (geom.fastIntersects(extent.getMinX(), extent.getMinY(),
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extent.getWidth(), extent.getHeight())) { |
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ISymbol symbol = l.getSymbol(i); |
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if (symbol ==null) |
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continue;
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if (bitSet != null) |
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if (bitSet.get(i)) {
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symbol = symbol.getSymbolForSelection(); |
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} |
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if (symbol != null) |
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geom.draw(g, viewPort, symbol); |
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} |
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/* else
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{
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System.out.println("no pinto id=" + i);
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} */
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} |
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// logger.info("getCapa().getRecordset().stop()");
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if (rsSel != null) |
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rsSel.stop(); |
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// logger.debug("adapter.stop()");
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adapter.stop(); |
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// TODO: A revisar si es o no conveniente este sistema
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// de comunicaci?n con los drivers.
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// DriverAttributes attr = adapter.getDriverAttributes();
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/* if (attr != null)
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{
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if (attr.isLoadedInMemory())
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{
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// Quitamos lo de la reproyecci?n al vuelo para que
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// solo se haga una vez.
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getCapa().setCoordTrans(null);
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}
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} */
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} catch (DriverIOException e) {
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throw new DriverException(e); |
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} catch (com.hardcode.gdbms.engine.data.driver.DriverException e) {
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throw new DriverException(e); |
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} catch (DriverException e) {
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throw new DriverException(e); |
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} |
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} |
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/**
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* Devuelve la capa.
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*
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* @return Returns the capa.
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*/
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public FLayer getCapa() {
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return capa;
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#process(com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor,
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* java.util.BitSet)
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*/
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public void process(FeatureVisitor visitor, BitSet subset) |
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throws DriverException, VisitException {
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process(visitor, subset, null);
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} |
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/**
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* DOCUMENT ME!
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*
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* @param visitor DOCUMENT ME!
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*
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* @throws DriverException DOCUMENT ME!
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* @throws VisitException
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*
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* @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#process(com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor)
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*/
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public void process(FeatureVisitor visitor) |
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throws DriverException, VisitException {
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process(visitor, (CancellableMonitorable)null);
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#queryByPoint(Point2D,
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* double)
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*/
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public FBitSet queryByPoint(Point2D p, double tolerance, CancellableMonitorable cancel) |
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throws DriverException {
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// TODO: OJO!!!!. Est? implementado como un rectangulo.
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// Lo correcto deber?a ser calculando las distancias reales
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// es decir, con un c?rculo.
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Rectangle2D recPoint = new Rectangle2D.Double(p.getX() - (tolerance / 2), |
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p.getY() - (tolerance / 2), tolerance, tolerance);
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return queryByRect(recPoint);
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} |
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/* (non-Javadoc)
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* @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#print(java.awt.Graphics2D, com.iver.cit.gvsig.fmap.ViewPort)
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*/
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public void print(Graphics2D g, ViewPort viewPort, Cancellable cancel, PrintRequestAttributeSet properties) |
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throws DriverException {
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if (capa instanceof FLyrVect) { |
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((FLyrVect)capa).beforePrinting(properties); |
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draw(null, g, viewPort, cancel); // Quiero ejecutar el draw del padre, que es el que va sin acelaraci?n!! |
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((FLyrVect)capa).afterPrinting(); |
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}else{
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draw(null, g, viewPort, cancel); // Quiero ejecutar el draw del padre, que es el que va sin acelaraci?n!! |
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} |
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} |
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public void process(FeatureVisitor visitor, Rectangle2D rectangle) throws DriverException, VisitException { |
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process(visitor, rectangle, null);
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} |
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/**
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* Verifies cancelation events, and return a boolean flag
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* if processes must be stopped for this cancelations events.
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*
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* @param cancel
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* @param va
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* @param visitor
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* @return
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* @throws DriverIOException
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*/
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protected boolean verifyCancelation(Cancellable cancel, ReadableVectorial va, FeatureVisitor visitor) throws DriverIOException{ |
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if(cancel != null){ |
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if(cancel.isCanceled()){
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va.stop(); |
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visitor.stop(capa); |
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// logger.info("visitor canceled");
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return true; |
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} |
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} |
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return false; |
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} |
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public void process(FeatureVisitor visitor, BitSet subset, CancellableMonitorable cancel) throws DriverException, VisitException { |
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try {
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// logger.info("visitor.start()");
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if (visitor.start(capa)) {
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ReadableVectorial va = ((SingleLayer) capa).getSource(); |
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va.start(); |
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for (int i = 0; i < va.getShapeCount(); i++) { |
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if(verifyCancelation(cancel, va, visitor))
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return;
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if (subset.get(i)) {
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if(cancel != null){ |
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cancel.reportStep(); |
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} |
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visitor.visit(va.getShape(i), i); |
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} |
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} |
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va.stop(); |
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// logger.info("visitor.stop()");
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visitor.stop(capa); |
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} |
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} catch (DriverIOException e) {
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throw new DriverException(e); |
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} |
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} |
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public void process(FeatureVisitor visitor, CancellableMonitorable cancel) throws DriverException, VisitException { |
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try {
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// logger.info("visitor.start()");
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if (visitor.start(capa)) {
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ReadableVectorial va = ((SingleLayer) capa).getSource(); |
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ICoordTrans ct = getCapa().getCoordTrans(); |
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va.start(); |
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for (int i = 0; i < va.getShapeCount(); i++) { |
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if(cancel != null){ |
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cancel.reportStep(); |
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} |
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if(verifyCancelation(cancel, va, visitor))
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return;
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IGeometry geom = va.getShape(i); |
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if (ct != null) { |
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geom.reProject(ct); |
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} |
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visitor.visit(geom, i); |
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} |
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va.stop(); |
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// logger.info("visitor.stop()");
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visitor.stop(capa); |
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} |
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} catch (DriverIOException e) {
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throw new DriverException(e); |
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} |
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} |
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public void process(FeatureVisitor visitor, Rectangle2D rectangle, CancellableMonitorable cancel) throws DriverException, VisitException { |
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FilterRectVisitor filterVisitor = new FilterRectVisitor();
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filterVisitor.setRectangle(rectangle); |
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filterVisitor.setWrappedVisitor(visitor); |
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try {
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process(filterVisitor, cancel); |
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} catch (VisitException e) {
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throw new RuntimeException( |
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"process(visitor,rectangle) lanza una VisitException?");
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} |
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} |
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|
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public FBitSet queryByPoint(Point2D p, double tolerance) throws DriverException { |
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return queryByPoint(p, tolerance, null); |
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} |
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|
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public FBitSet queryByRect(Rectangle2D rect) throws DriverException { |
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return queryByRect(rect, null); |
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} |
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|
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public FBitSet queryByShape(IGeometry g, int relationship) throws DriverException, VisitException { |
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return queryByShape(g, relationship, null); |
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} |
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|
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/**
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* Tells when in a spatial query the use of an spatial index is an advanced,
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* or it would be better to use a secuential search.
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* <br>
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* The criteria to decide is the area of the query region. If it is less than
|
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* 1/4 of full extent layer region, the spatial index will be an improve.
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* Else, a secuential scan would be better
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* @param rectangle
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* @return
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* @throws DriverException
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*/
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protected boolean isSpatialIndexNecessary(Rectangle2D extent) throws DriverException { |
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FLyrVect lyr = (FLyrVect) getCapa(); |
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double areaExtent = extent.getWidth() * extent.getHeight();
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double areaFullExtent = lyr.getFullExtent().getWidth() *
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lyr.getFullExtent().getHeight(); |
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return areaExtent < (areaFullExtent / 4.0); |
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|
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} |
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|
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/**
|
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* Similar to process, but calls visitWithSymbol in FeatureVisitor.
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* @param visitor
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* @param rectangle
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* @param cancel
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* @throws DriverException
|
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* @throws VisitException
|
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*/
|
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public void processWithSymbols(ExtendsFeatureVisitor visitor, Rectangle2D extent, CancellableMonitorable cancel) throws DriverException, VisitException { |
453 |
|
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if (visitor==null) |
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return;
|
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|
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/*IGeometry geom = null;
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int index = -1;
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ISymbol symbol = null;
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visitor.visitWithSymbol(geom, index, symbol); // TEST */
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|
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try {
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ReadableVectorial adapter = ((SingleLayer) capa).getSource(); |
464 |
ICoordTrans ct = getCapa().getCoordTrans(); |
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//logger.debug("adapter.start()");
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adapter.start(); |
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|
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//logger.debug("getCapa().getRecordset().start()");
|
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SelectableDataSource rsSel = ((AlphanumericData) getCapa()).getRecordset(); |
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if (rsSel != null) |
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rsSel.start(); |
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|
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int sc = adapter.getShapeCount();
|
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|
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// TODO: A revisar si es o no conveniente este sistema
|
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// de comunicaci?n con los drivers.
|
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DriverAttributes attr = adapter.getDriverAttributes(); |
478 |
boolean bMustClone = false; |
479 |
if (attr != null) |
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{ |
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if (attr.isLoadedInMemory())
|
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{ |
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bMustClone = attr.isLoadedInMemory(); |
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} |
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} |
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VectorialLegend l = (VectorialLegend) ((ClassifiableVectorial) capa).getLegend(); |
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FBitSet bitSet = null;
|
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if (getCapa() instanceof Selectable){ |
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Selectable selection = (Selectable) getCapa(); |
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bitSet = selection.getSelection(); |
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} |
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for (int i = 0; i < sc; i++) { |
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if (cancel!=null && cancel.isCanceled()) { |
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break;
|
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} |
496 |
|
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IGeometry geom = adapter.getShape(i); |
498 |
|
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if (geom == null) { |
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continue;
|
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} |
502 |
|
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if (ct != null) { |
504 |
if (bMustClone)
|
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geom = geom.cloneGeometry(); |
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geom.reProject(ct); |
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} |
508 |
|
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if (extent == null || |
510 |
geom.fastIntersects(extent.getMinX(), extent.getMinY(), |
511 |
extent.getWidth(), extent.getHeight())) { |
512 |
ISymbol symbol = l.getSymbol(i); |
513 |
|
514 |
if (symbol ==null) |
515 |
continue;
|
516 |
if (bitSet != null) |
517 |
if (bitSet.get(i)) {
|
518 |
symbol = symbol.getSymbolForSelection(); |
519 |
} |
520 |
// send feature for process in visitor
|
521 |
visitor.visitWithSymbol(geom, i, symbol); |
522 |
|
523 |
} |
524 |
/* else
|
525 |
{
|
526 |
System.out.println("no pinto id=" + i);
|
527 |
} */
|
528 |
} |
529 |
|
530 |
//logger.debug("getCapa().getRecordset().stop()");
|
531 |
if (rsSel != null) |
532 |
rsSel.stop(); |
533 |
|
534 |
//logger.debug("adapter.stop()");
|
535 |
adapter.stop(); |
536 |
|
537 |
} catch (DriverIOException e) {
|
538 |
throw new DriverException(e); |
539 |
} catch (com.hardcode.gdbms.engine.data.driver.DriverException e) {
|
540 |
throw new DriverException(e); |
541 |
} catch (DriverException e) {
|
542 |
throw new DriverException(e); |
543 |
} |
544 |
} |
545 |
|
546 |
|
547 |
} |