svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.symbology / org.gvsig.symbology.lib / org.gvsig.symbology.lib.impl / src / main / java / org / gvsig / symbology / fmap / mapcontext / rendering / legend / impl / AbstractVectorialLegend.java @ 45887
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 gvSIG Association.
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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 3
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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/*
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* AUTHORS (In addition to CIT):
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* 2009 {DiSiD Technologies} {{Task}}
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*/
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package org.gvsig.symbology.fmap.mapcontext.rendering.legend.impl; |
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import java.awt.Graphics2D; |
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import java.awt.geom.Point2D; |
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import java.awt.image.BufferedImage; |
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import java.util.Iterator; |
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import java.util.Map; |
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import java.util.Map.Entry; |
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import org.apache.commons.lang3.StringUtils; |
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import org.cresques.cts.ICoordTrans; |
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import org.cresques.cts.IProjection; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.gvsig.compat.CompatLocator; |
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import org.gvsig.compat.print.PrintAttributes; |
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import org.gvsig.expressionevaluator.ExpressionBuilder; |
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import org.gvsig.expressionevaluator.ExpressionUtils; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureQuery; |
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import org.gvsig.fmap.dal.feature.FeatureReference; |
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import org.gvsig.fmap.dal.feature.FeatureSelection; |
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import org.gvsig.fmap.dal.feature.FeatureSet; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.feature.exception.ConcurrentDataModificationException; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.aggregate.Aggregate; |
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import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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import org.gvsig.fmap.geom.exception.ReprojectionRuntimeException; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.mapcontext.MapContext; |
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import org.gvsig.fmap.mapcontext.MapContextException; |
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import org.gvsig.fmap.mapcontext.ViewPort; |
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import org.gvsig.fmap.mapcontext.layers.vectorial.SpatialEvaluatorsFactory; |
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import org.gvsig.fmap.mapcontext.rendering.legend.ILegend; |
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import org.gvsig.fmap.mapcontext.rendering.legend.IVectorLegend; |
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import org.gvsig.fmap.mapcontext.rendering.legend.LegendException; |
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import org.gvsig.fmap.mapcontext.rendering.legend.ZSort; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.CartographicSupport; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.IMultiLayerSymbol; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dispose.DisposableIterator; |
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import org.gvsig.tools.dispose.DisposeUtils; |
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import org.gvsig.tools.dynobject.DynStruct; |
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import org.gvsig.tools.evaluator.Evaluator; |
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import org.gvsig.tools.exception.BaseException; |
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import org.gvsig.tools.logger.FilteredLogger; |
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import org.gvsig.tools.persistence.PersistenceManager; |
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import org.gvsig.tools.persistence.PersistentState; |
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import org.gvsig.tools.persistence.exception.PersistenceException; |
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import org.gvsig.tools.task.Cancellable; |
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import org.gvsig.tools.task.SimpleTaskStatus; |
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import org.gvsig.tools.util.Callable; |
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import org.gvsig.tools.visitor.VisitCanceledException; |
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import org.gvsig.tools.visitor.Visitor; |
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/**
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* Base implementation for Vectorial data Legends.
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*
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* Provides a draw method implementation which loads the {@link Feature}s and
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* uses the {@link ISymbol} objects to draw the {@link Geometry} objects.
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*
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*/
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public abstract class AbstractVectorialLegend extends AbstractLegend implements |
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IVectorLegend { |
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protected static final Logger LOG = LoggerFactory |
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.getLogger(AbstractVectorialLegend.class); |
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private static final int DRAW_MAX_ATTEMPTS = 5; |
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public static final String VECTORIAL_LEGEND_PERSISTENCE_DEFINITION_NAME = "VectorialLegend"; |
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private static final String FIELD_HAS_ZSORT = "hasZSort"; |
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private static final String FIELD_SHAPETYPE = "shapeType"; |
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private static final String FIELD_DEFAULT_SYMBOL = "defaultSymbol"; |
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// private static final GeometryManager geomManager = GeometryLocator
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// .getGeometryManager();
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protected ZSort zSort;
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public ZSort getZSort() {
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return zSort;
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} |
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public void setZSort(ZSort zSort) { |
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if (zSort == null) { |
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removeLegendListener(this.zSort);
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} |
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this.zSort = zSort;
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addLegendListener(zSort); |
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} |
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@SuppressWarnings("unchecked") |
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@Override
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public void draw(BufferedImage image, Graphics2D g, ViewPort viewPort, |
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Cancellable cancel, double scale, Map queryParameters, |
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ICoordTrans coordTrans, FeatureStore featureStore) |
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throws LegendException {
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double dpi = viewPort.getDPI();
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draw(image, g, viewPort, cancel, scale, queryParameters, coordTrans, |
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featureStore, null, dpi);
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} |
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@SuppressWarnings("unchecked") |
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@Override
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public void draw(BufferedImage image, Graphics2D g, ViewPort viewPort, |
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Cancellable cancel, double scale, Map queryParameters, |
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ICoordTrans coordTrans, FeatureStore featureStore, FeatureQuery featureQuery) |
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throws LegendException {
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double dpi = viewPort.getDPI();
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draw(image, g, viewPort, cancel, scale, queryParameters, coordTrans, |
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featureStore, featureQuery, dpi); |
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} |
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@SuppressWarnings("unchecked") |
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@Override
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public void print(Graphics2D g, ViewPort viewPort, Cancellable cancel, |
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double scale, Map queryParameters, ICoordTrans coordTrans, |
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FeatureStore featureStore, PrintAttributes properties) |
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throws LegendException {
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print(g, viewPort, cancel, scale, queryParameters, coordTrans, |
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featureStore, null, properties);
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} |
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@SuppressWarnings("unchecked") |
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@Override
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public void print(Graphics2D g, ViewPort viewPort, Cancellable cancel, |
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double scale, Map queryParameters, ICoordTrans coordTrans, |
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FeatureStore featureStore, FeatureQuery fquery, PrintAttributes properties) |
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throws LegendException {
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double dpi = 72; |
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int resolution = properties.getPrintQuality();
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if (resolution == PrintAttributes.PRINT_QUALITY_DRAFT
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|| resolution == PrintAttributes.PRINT_QUALITY_NORMAL |
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|| resolution == PrintAttributes.PRINT_QUALITY_HIGH) { |
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dpi = PrintAttributes.PRINT_QUALITY_DPI[resolution]; |
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} |
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FeatureSet featureSet = null;
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DisposableIterator it = null;
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try {
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GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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ZSort zSort = getZSort(); |
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boolean useZSort = false; |
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int mapLevelCount = 1; |
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if( zSort != null ) { |
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useZSort = zSort.isUsingZSort(); |
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if( useZSort ) {
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mapLevelCount = zSort.getLevelCount(); |
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} |
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} |
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for (int mapPass = 0; mapPass < mapLevelCount; mapPass++) { |
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Envelope vp_env_in_store_crs; |
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IProjection store_crs; |
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if (coordTrans != null) { |
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// 'coordTrans' is from store crs to vp crs
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ICoordTrans inv = coordTrans.getInverted(); |
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Envelope aux = viewPort.getAdjustedEnvelope(); |
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vp_env_in_store_crs = aux.convert(inv); |
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store_crs = coordTrans.getPOrig(); |
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} else {
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vp_env_in_store_crs = viewPort.getAdjustedEnvelope(); |
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store_crs = viewPort.getProjection(); |
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} |
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FeatureQuery feat_query = fquery; |
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Envelope store_env = featureStore.getEnvelope(); |
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boolean use_intersection_cond;
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if (store_env == null) { |
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// Store does not know its envelope, so we must:
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use_intersection_cond = true;
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} else {
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if (vp_env_in_store_crs.contains(store_env)) {
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use_intersection_cond = false;
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} else {
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use_intersection_cond = true;
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} |
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} |
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if (use_intersection_cond) {
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Evaluator iee = SpatialEvaluatorsFactory.getInstance().intersects( |
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vp_env_in_store_crs, |
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store_crs, |
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featureStore |
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); |
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if (feat_query == null) { |
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feat_query = featureStore.createFeatureQuery(); |
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} |
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String[] fns = getRequiredFeatureAttributeNames(featureStore); |
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for (int i = 0; i < fns.length; i++) { |
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feat_query.addAttributeName(fns[i]); |
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} |
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feat_query.addFilter(iee); |
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} |
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// 'feat_query' can still be NULL here, so we only filter
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// the featureStore if it's not null
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if (feat_query == null) { |
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featureSet = featureStore.getFeatureSet(); |
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} else {
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featureSet = featureStore.getFeatureSet(feat_query); |
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} |
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it = featureSet.fastIterator(); |
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// Iteration over each feature
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FilteredLogger logger = new FilteredLogger(LOG,"Drawing "+featureStore.getName(), 10); |
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while (!cancel.isCanceled() && it.hasNext()) {
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Feature feat = (Feature) it.next(); |
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try {
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Geometry geom = feat.getDefaultGeometry(); |
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if (geom==null) { |
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continue;
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} |
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// Reprojection if needed
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if (coordTrans != null) { |
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geom = geom.cloneGeometry(); |
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geom.reProject(coordTrans); |
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} |
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// retrieve the symbol associated to such feature
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ISymbol sym = getSymbolByFeature(feat); |
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if (sym == null) { |
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continue;
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} |
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if (useZSort) {
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int[] symLevels = zSort.getLevels(sym); |
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if (symLevels != null) { |
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// Check if this symbol is a multilayer
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if (sym instanceof IMultiLayerSymbol) { |
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// if so, get the layer corresponding to the
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// current level. If none, continue to next
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// iteration
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IMultiLayerSymbol mlSym = (IMultiLayerSymbol) sym; |
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for (int i = 0; i < mlSym.getLayerCount(); i++) { |
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ISymbol mySym = mlSym.getLayer(i); |
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if (symLevels[i] == mapPass) {
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sym = mySym; |
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break;
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} |
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} |
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} else {
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// else, just draw the symbol in its level
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if (symLevels[0] != mapPass) { |
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continue;
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} |
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} |
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} |
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} |
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// Check if this symbol is sized with CartographicSupport
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CartographicSupport csSym = null;
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int symbolType = sym.getSymbolType();
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if (symbolType == Geometry.TYPES.POINT
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|| geomManager.isSubtype(symbolType, Geometry.TYPES.CURVE) |
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|| sym instanceof CartographicSupport) {
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csSym = (CartographicSupport) sym; |
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} |
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if (csSym == null) { |
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DrawUtils.drawInts(g, viewPort, sym, feat, geom); |
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} else {
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DrawUtils.drawInts(g, viewPort, cancel, dpi, sym, feat, geom); |
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} |
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} catch(Exception ex) { |
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FeatureReference ref = null;
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if( feat!=null ) { |
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ref = feat.getReference(); |
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} |
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logger.warn("Can't draw feature ("+ref+").", ex); |
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} |
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} |
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} |
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} catch (DataException e) {
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throw new LegendDrawingException(e); |
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} finally {
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if (it != null) { |
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it.dispose(); |
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} |
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if (featureSet != null) { |
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featureSet.dispose(); |
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} |
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} |
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} |
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/**
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* Draws the features from the {@link FeatureStore}, filtered with the scale
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* and the query parameters, with the symbols of the legend.
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* @param image
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* @param g
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* @param viewPort
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* @param cancel
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* @param scale
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* @param queryParameters
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* @param coordTrans
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* @param featureStore
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* @param featureQuery
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* @param dpi
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* @throws org.gvsig.fmap.mapcontext.rendering.legend.LegendException
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*/
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@SuppressWarnings("unchecked") |
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protected void draw(BufferedImage image, Graphics2D g, ViewPort viewPort, |
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Cancellable cancel, double scale, Map queryParameters, |
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ICoordTrans coordTrans, FeatureStore featureStore, |
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FeatureQuery featureQuery, double dpi) throws LegendException { |
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SimpleTaskStatus taskStatus = ToolsLocator.getTaskStatusManager() |
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.createDefaultSimpleTaskStatus(featureStore.getName()); |
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taskStatus.add(); |
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try {
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// Avoid ConcurrentModificationException errors if
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// while drawing another thread edits the store data.
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synchronized (featureStore) {
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internalDraw(image, g, viewPort, cancel, scale, |
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queryParameters, coordTrans, featureStore, |
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featureQuery, dpi, taskStatus); |
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} |
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} finally {
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taskStatus.terminate(); |
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taskStatus.remove(); |
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} |
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} |
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protected void internalDraw(BufferedImage image, Graphics2D g, |
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ViewPort viewPort, Cancellable cancel, double scale,
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Map queryParameters, ICoordTrans coordTrans,
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FeatureStore featureStore, FeatureQuery featureQuery, double dpi,
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SimpleTaskStatus taskStatus) throws LegendDrawingException {
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if (!getDefaultSymbol().isShapeVisible()) {
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return;
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} |
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|
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if (cancel.isCanceled()) {
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return;
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} |
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|
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IProjection dataProjection; |
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Envelope dataEnvelope; |
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Envelope reprojectedDataEnvelope; |
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// Gets the view envelope
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Envelope viewPortEnvelope = viewPort.getAdjustedEnvelope(); |
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Envelope reprojectedViewPortEnvelope; |
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try {
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dataEnvelope = featureStore.getEnvelope(); |
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if (coordTrans == null) { |
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dataProjection = featureStore.getDefaultFeatureType() |
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.getDefaultSRS(); |
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|
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// If the data does not provide a projection, use the
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// current view one
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if (dataProjection == null) { |
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dataProjection = viewPort.getProjection(); |
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} |
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reprojectedDataEnvelope = dataEnvelope; |
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reprojectedViewPortEnvelope = viewPortEnvelope; |
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} else {
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dataProjection = coordTrans.getPOrig(); |
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|
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if ( dataEnvelope!=null && !dataEnvelope.isEmpty()) { |
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reprojectedDataEnvelope = dataEnvelope.convert(coordTrans); |
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} else {
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reprojectedDataEnvelope = dataEnvelope; |
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} |
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if ( viewPortEnvelope!=null && !viewPortEnvelope.isEmpty()) { |
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reprojectedViewPortEnvelope = viewPortEnvelope.convert(coordTrans.getInverted()); |
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} else {
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reprojectedViewPortEnvelope = viewPortEnvelope; |
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} |
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} |
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} catch (DataException e) {
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throw new LegendDrawingException(e); |
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} |
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|
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|
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// Gets the data envelope with the viewport SRS
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// Envelope myEnvelope = reprojectedDataEnvelope;
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|
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// TODO: in some cases, the legend may need a different check to
|
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// decide if the data must be drawn or not
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// Checks if the viewport envelope intersects with the data envelope
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// This condition may seem redundant, but sometimes the transformations may fail and cause false negatives.
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if ((viewPortEnvelope==null || !viewPortEnvelope.intersects(reprojectedDataEnvelope)) && !(reprojectedViewPortEnvelope!=null && reprojectedViewPortEnvelope.intersects(dataEnvelope))) { |
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// The data is not visible in the current viewport, do nothing.
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return;
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} |
431 |
|
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// Check if all the data is contained into the viewport envelope
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// This condition may seem redundant, but sometimes the transformations may fail and cause false negatives.
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boolean containsAll = viewPortEnvelope.contains(reprojectedDataEnvelope) || (reprojectedViewPortEnvelope!=null && reprojectedViewPortEnvelope.contains(dataEnvelope)); |
435 |
|
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// Create the drawing notification to be reused on each iteration
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DefaultFeatureDrawnNotification drawnNotification = new DefaultFeatureDrawnNotification();
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438 |
|
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if (cancel.isCanceled()) {
|
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return;
|
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} |
442 |
|
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FeatureSet featureSet = null;
|
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try {
|
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taskStatus.message("Retrieve selection");
|
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FeatureSelection selection = featureStore.getFeatureSelection(); |
447 |
|
448 |
if (featureQuery == null) { |
449 |
featureQuery = featureStore.createFeatureQuery(); |
450 |
} |
451 |
|
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completeQuery(featureStore, featureQuery, scale, queryParameters, |
453 |
coordTrans, dataProjection, viewPortEnvelope, containsAll); |
454 |
|
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taskStatus.message("Retrieve data");
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featureSet = featureStore.getFeatureSet(featureQuery); |
457 |
|
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if (cancel.isCanceled()) {
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return;
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} |
461 |
|
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taskStatus.message("Drawing");
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drawFeatures(image, g, viewPort, cancel, coordTrans, dpi, |
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drawnNotification, featureSet, selection); |
465 |
|
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} catch (Throwable e) { |
467 |
/*
|
468 |
* Probably a reprojection exception (for example,
|
469 |
* trying to reproject Canada to EPSG:23030)
|
470 |
*/
|
471 |
throw new LegendDrawingException(e); |
472 |
} finally {
|
473 |
if (featureSet != null) { |
474 |
featureSet.dispose(); |
475 |
} |
476 |
} |
477 |
} |
478 |
|
479 |
/**
|
480 |
* Complete a {@link FeatureQuery} to load the {@link Feature}s to draw.
|
481 |
*/
|
482 |
@SuppressWarnings("unchecked") |
483 |
private FeatureQuery completeQuery(FeatureStore featureStore, FeatureQuery featureQuery, double scale, |
484 |
Map queryParameters, ICoordTrans coordTrans,
|
485 |
IProjection dataProjection, Envelope viewPortEnvelope, |
486 |
boolean containsAll) throws DataException { |
487 |
boolean retrievesAllAttributes = featureQuery.hasFilter() && !featureQuery.hasAttributeNames();
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|
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featureQuery.setScale(scale); |
490 |
|
491 |
//Adds the attributes
|
492 |
String[] fieldNames = getRequiredFeatureAttributeNames(featureStore); |
493 |
for (int i=0 ; i<fieldNames.length ;i++){ |
494 |
String fieldName = fieldNames[i];
|
495 |
if( StringUtils.isNotBlank(fieldName) ) {
|
496 |
featureQuery.addAttributeName(fieldName); |
497 |
} |
498 |
} |
499 |
|
500 |
if (!containsAll) {
|
501 |
// Gets the viewport envelope with the data SRS
|
502 |
Envelope viewPortEnvelopeInMyProj = viewPortEnvelope; |
503 |
if (coordTrans != null) { |
504 |
viewPortEnvelopeInMyProj = viewPortEnvelope.convert(coordTrans |
505 |
.getInverted()); |
506 |
} |
507 |
|
508 |
if (dataProjection == null) { |
509 |
throw new IllegalArgumentException( |
510 |
"Error, the projection parameter value is null");
|
511 |
} |
512 |
|
513 |
Evaluator iee = SpatialEvaluatorsFactory.getInstance().intersects( |
514 |
viewPortEnvelopeInMyProj, |
515 |
dataProjection, |
516 |
featureStore |
517 |
); |
518 |
featureQuery.addFilter(iee); |
519 |
} else {
|
520 |
FeatureType ft = featureStore.getDefaultFeatureType(); |
521 |
ExpressionBuilder expbuilder = ExpressionUtils.createExpressionBuilder(); |
522 |
featureQuery.addFilter( |
523 |
expbuilder.not_is_null( |
524 |
expbuilder.column( |
525 |
ft.getDefaultGeometryAttributeName() |
526 |
) |
527 |
).toString() |
528 |
); |
529 |
} |
530 |
|
531 |
if (queryParameters != null) { |
532 |
Iterator iterEntry = queryParameters.entrySet().iterator();
|
533 |
Entry entry; |
534 |
while (iterEntry.hasNext()) {
|
535 |
entry = (Entry) iterEntry.next(); |
536 |
featureQuery.setQueryParameter((String) entry.getKey(),
|
537 |
entry.getValue()); |
538 |
} |
539 |
} |
540 |
if( retrievesAllAttributes ) {
|
541 |
featureQuery.retrievesAllAttributes(); |
542 |
} |
543 |
return featureQuery;
|
544 |
} |
545 |
|
546 |
/**
|
547 |
* Draws the features from the {@link FeatureSet}, with the symbols of the
|
548 |
* legend.
|
549 |
*/
|
550 |
protected void drawFeatures(BufferedImage image, Graphics2D g, |
551 |
ViewPort viewPort, Cancellable cancel, ICoordTrans coordTrans, |
552 |
double dpi, DefaultFeatureDrawnNotification drawnNotification,
|
553 |
FeatureSet featureSet, FeatureSelection selection) |
554 |
throws BaseException {
|
555 |
if (isUseZSort()) {
|
556 |
drawFeaturesMultiLayer(image, g, viewPort, cancel, coordTrans, dpi, |
557 |
drawnNotification, featureSet, selection); |
558 |
} else {
|
559 |
drawFeaturesSingleLayer(image, g, viewPort, cancel, coordTrans, |
560 |
dpi, drawnNotification, featureSet, selection); |
561 |
} |
562 |
} |
563 |
|
564 |
/**
|
565 |
* Draws the features from the {@link FeatureSet}, with the symbols of the
|
566 |
* legend, using a single drawing layer.
|
567 |
*/
|
568 |
private void drawFeaturesSingleLayer(final BufferedImage image, |
569 |
final Graphics2D g, final ViewPort viewPort, |
570 |
final Cancellable cancel, final ICoordTrans coordTrans, |
571 |
final double dpi, |
572 |
final DefaultFeatureDrawnNotification drawnNotification,
|
573 |
FeatureSet featureSet, final FeatureSelection selection)
|
574 |
throws BaseException {
|
575 |
|
576 |
try {
|
577 |
featureSet.accept(new Visitor() {
|
578 |
@Override
|
579 |
public void visit(Object obj) throws VisitCanceledException, |
580 |
BaseException { |
581 |
if( cancel.isCanceled() ) {
|
582 |
throw new VisitCanceledException(); |
583 |
} |
584 |
Feature feat = (Feature) obj; |
585 |
drawFeatureSingleLayer(image, g, viewPort, cancel, |
586 |
coordTrans, dpi, drawnNotification, feat, selection); |
587 |
} |
588 |
}); |
589 |
|
590 |
} catch (ConcurrentDataModificationException e) {
|
591 |
cancel.setCanceled(true);
|
592 |
} |
593 |
} |
594 |
|
595 |
/**
|
596 |
* Draws a Feature with the symbols of the legend, using a single drawing
|
597 |
* layer.
|
598 |
*/
|
599 |
private void drawFeatureSingleLayer(BufferedImage image, Graphics2D g, |
600 |
ViewPort viewPort, Cancellable cancel, ICoordTrans coordTrans, |
601 |
double dpi, DefaultFeatureDrawnNotification drawnNotification,
|
602 |
Feature feat, FeatureSelection selection) |
603 |
throws MapContextException, CreateGeometryException {
|
604 |
|
605 |
Geometry geom = feat.getDefaultGeometry(); |
606 |
if (geom == null) { |
607 |
return;
|
608 |
} |
609 |
|
610 |
if (geom.getType() == Geometry.TYPES.NULL) {
|
611 |
return;
|
612 |
} |
613 |
|
614 |
ISymbol sym = getSymbol(feat, selection); |
615 |
if (sym == null) { |
616 |
return;
|
617 |
} |
618 |
|
619 |
if (coordTrans != null) { |
620 |
geom = geom.cloneGeometry(); |
621 |
try {
|
622 |
geom.reProject(coordTrans); |
623 |
} catch (ReprojectionRuntimeException re) {
|
624 |
LOG.warn("Can't reproject geometry "+geom.toString(), re);
|
625 |
return;
|
626 |
} |
627 |
} |
628 |
|
629 |
if (cancel.isCanceled()) {
|
630 |
return;
|
631 |
} |
632 |
|
633 |
drawGeometry(geom, image, feat, sym, viewPort, g, dpi, cancel); |
634 |
|
635 |
// Notify the drawing observers
|
636 |
drawnNotification.setFeature(feat); |
637 |
drawnNotification.setDrawnGeometry(geom); |
638 |
notifyObservers(drawnNotification); |
639 |
} |
640 |
|
641 |
/**
|
642 |
* Draws the features from the {@link FeatureSet}, with the symbols of the
|
643 |
* legend, using a multiple drawing layer.
|
644 |
*/
|
645 |
private void drawFeaturesMultiLayer(BufferedImage image, Graphics2D g, |
646 |
ViewPort viewPort, Cancellable cancel, ICoordTrans coordTrans, |
647 |
double dpi, DefaultFeatureDrawnNotification drawnNotification,
|
648 |
FeatureSet featureSet, FeatureSelection selection) |
649 |
throws MapContextException, CreateGeometryException, DataException {
|
650 |
|
651 |
// -- visual FX stuff
|
652 |
long time = System.currentTimeMillis(); |
653 |
|
654 |
boolean bSymbolLevelError = false; |
655 |
int screenRefreshDelay = (int) ((1D / MapContext.getDrawFrameRate()) * 3 * 1000); |
656 |
BufferedImage[] imageLevels; |
657 |
Graphics2D[] graphics; |
658 |
|
659 |
imageLevels = new BufferedImage[getZSort().getLevelCount()]; |
660 |
graphics = new Graphics2D[imageLevels.length]; |
661 |
for (int i = 0; !cancel.isCanceled() && i < imageLevels.length; i++) { |
662 |
|
663 |
imageLevels[i] = CompatLocator.getGraphicsUtils() |
664 |
.createBufferedImage(image.getWidth(), image.getHeight(), |
665 |
image.getType()); |
666 |
|
667 |
graphics[i] = imageLevels[i].createGraphics(); |
668 |
graphics[i].setTransform(g.getTransform()); |
669 |
graphics[i].setRenderingHints(g.getRenderingHints()); |
670 |
} |
671 |
|
672 |
DisposableIterator it = null;
|
673 |
try {
|
674 |
it = featureSet.fastIterator(); |
675 |
// Iteration over each feature
|
676 |
while (it.hasNext()) {
|
677 |
if (cancel.isCanceled()) {
|
678 |
return;
|
679 |
} |
680 |
Feature feat = (Feature) it.next(); |
681 |
|
682 |
bSymbolLevelError |= drawFeatureMultiLayer(image, g, viewPort, |
683 |
cancel, coordTrans, dpi, drawnNotification, selection, |
684 |
time, screenRefreshDelay, imageLevels, graphics, feat); |
685 |
|
686 |
} |
687 |
} catch (ConcurrentDataModificationException e) {
|
688 |
cancel.setCanceled(true);
|
689 |
return;
|
690 |
} finally {
|
691 |
DisposeUtils.dispose(it); |
692 |
} |
693 |
|
694 |
g.drawImage(image, 0, 0, null); |
695 |
|
696 |
Point2D offset = viewPort.getOffset();
|
697 |
CompatLocator.getGraphicsUtils().translate(g, offset.getX(), |
698 |
offset.getY()); |
699 |
|
700 |
for (int i = 0; !cancel.isCanceled() && i < imageLevels.length; i++) { |
701 |
g.drawImage(imageLevels[i], 0, 0, null); |
702 |
imageLevels[i] = null;
|
703 |
graphics[i] = null;
|
704 |
} |
705 |
|
706 |
CompatLocator.getGraphicsUtils().translate(g, -offset.getX(), |
707 |
-offset.getY()); |
708 |
|
709 |
if (bSymbolLevelError) {
|
710 |
setZSort(null);
|
711 |
} |
712 |
} |
713 |
|
714 |
/**
|
715 |
* Draws a Feature with the symbols of the legend, using a multiple drawing
|
716 |
* layer.
|
717 |
*/
|
718 |
private boolean drawFeatureMultiLayer(BufferedImage image, Graphics2D g, |
719 |
ViewPort viewPort, Cancellable cancel, ICoordTrans coordTrans, |
720 |
double dpi, DefaultFeatureDrawnNotification drawnNotification,
|
721 |
FeatureSelection selection, long time, int screenRefreshDelay, |
722 |
BufferedImage[] imageLevels, Graphics2D[] graphics, Feature feat) |
723 |
throws MapContextException, CreateGeometryException {
|
724 |
|
725 |
Geometry geom = feat.getDefaultGeometry(); |
726 |
boolean bSymbolLevelError = false; |
727 |
long drawingTime = time;
|
728 |
|
729 |
if (geom==null || geom.getType() == Geometry.TYPES.NULL) { |
730 |
return false; |
731 |
} |
732 |
|
733 |
ISymbol sym = getSymbol(feat, selection); |
734 |
|
735 |
if (sym == null) { |
736 |
return false; |
737 |
} |
738 |
|
739 |
if (coordTrans != null) { |
740 |
geom = geom.cloneGeometry(); |
741 |
geom.reProject(coordTrans); |
742 |
} |
743 |
|
744 |
if (cancel.isCanceled()) {
|
745 |
return false; |
746 |
} |
747 |
|
748 |
// Check if this symbol is a multilayer
|
749 |
int[] symLevels = getZSort().getLevels(sym); |
750 |
if (sym instanceof IMultiLayerSymbol) { |
751 |
// if so, treat each of its layers as a single
|
752 |
// symbol
|
753 |
// in its corresponding map level
|
754 |
IMultiLayerSymbol mlSym = (IMultiLayerSymbol) sym; |
755 |
for (int i = 0; !cancel.isCanceled() && i < mlSym.getLayerCount(); i++) { |
756 |
ISymbol mySym = mlSym.getLayer(i); |
757 |
int symbolLevel = 0; |
758 |
if (symLevels != null) { |
759 |
symbolLevel = symLevels[i]; |
760 |
} else {
|
761 |
/*
|
762 |
* an error occured when managing symbol levels some of the
|
763 |
* legend changed events regarding the symbols did not
|
764 |
* finish satisfactory and the legend is now inconsistent.
|
765 |
* For this drawing, it will finish as it was at the bottom
|
766 |
* (level 0) but, when done, the ZSort will be reset to
|
767 |
* avoid app crashes. This is a bug that has to be fixed.
|
768 |
*/
|
769 |
bSymbolLevelError = true;
|
770 |
} |
771 |
drawGeometry(geom, imageLevels[symbolLevel], feat, mySym, |
772 |
viewPort, graphics[symbolLevel], dpi, cancel); |
773 |
} |
774 |
} else {
|
775 |
// else, just draw the symbol in its level
|
776 |
int symbolLevel = 0; |
777 |
if (symLevels != null) { |
778 |
symbolLevel = symLevels[0];
|
779 |
} |
780 |
drawGeometry(geom, imageLevels[symbolLevel], feat, sym, viewPort, |
781 |
graphics[symbolLevel], dpi, cancel); |
782 |
} |
783 |
|
784 |
// -- visual FX stuff
|
785 |
// Cuando el offset!=0 se est? dibujando sobre el
|
786 |
// Layout y por tanto no tiene que ejecutar el
|
787 |
// siguiente c?digo.
|
788 |
Point2D offset = viewPort.getOffset();
|
789 |
if (offset.getX() == 0 && offset.getY() == 0) { |
790 |
if ((System.currentTimeMillis() - drawingTime) > screenRefreshDelay) { |
791 |
|
792 |
BufferedImage virtualBim = CompatLocator.getGraphicsUtils()
|
793 |
.createBufferedImage(image.getWidth(), |
794 |
image.getHeight(), BufferedImage.TYPE_INT_ARGB);
|
795 |
|
796 |
Graphics2D virtualGraphics = virtualBim.createGraphics();
|
797 |
virtualGraphics.drawImage(image, 0, 0, null); |
798 |
for (int i = 0; !cancel.isCanceled() && i < imageLevels.length; i++) { |
799 |
virtualGraphics.drawImage(imageLevels[i], 0, 0, null); |
800 |
} |
801 |
g.clearRect(0, 0, image.getWidth(), image.getHeight()); |
802 |
g.drawImage(virtualBim, 0, 0, null); |
803 |
drawingTime = System.currentTimeMillis();
|
804 |
} |
805 |
// -- end visual FX stuff
|
806 |
|
807 |
} |
808 |
// Notify the drawing observers
|
809 |
drawnNotification.setFeature(feat); |
810 |
drawnNotification.setDrawnGeometry(geom); |
811 |
notifyObservers(drawnNotification); |
812 |
return bSymbolLevelError;
|
813 |
} |
814 |
|
815 |
/**
|
816 |
* Returns the symbol to use to draw a {@link Feature} taking into account
|
817 |
* if it is selected.
|
818 |
*/
|
819 |
private ISymbol getSymbol(Feature feat, FeatureSelection selection)
|
820 |
throws MapContextException {
|
821 |
// retrieve the symbol associated to such feature
|
822 |
ISymbol sym = getSymbolByFeature(feat); |
823 |
|
824 |
if (sym != null && selection.isSelected(feat)) { |
825 |
sym = sym.getSymbolForSelection(); |
826 |
} |
827 |
return sym;
|
828 |
} |
829 |
|
830 |
/**
|
831 |
* Returns if the legend is using a ZSort.
|
832 |
*/
|
833 |
private boolean isUseZSort() { |
834 |
return getZSort() != null && getZSort().isUsingZSort(); |
835 |
} |
836 |
|
837 |
/**
|
838 |
* Draws a {@link Geometry} using the given {@link ISymbol}, over the
|
839 |
* {@link Graphics2D} object.
|
840 |
*/
|
841 |
private void drawGeometry(Geometry geom, BufferedImage image, |
842 |
Feature feature, ISymbol symbol, ViewPort viewPort, |
843 |
Graphics2D graphics, double dpi, Cancellable cancellable) |
844 |
throws CreateGeometryException {
|
845 |
|
846 |
if (geom instanceof Aggregate) { |
847 |
drawAggregate((Aggregate) geom, image, feature, symbol, viewPort, |
848 |
graphics, dpi, cancellable); |
849 |
} else {
|
850 |
boolean bDrawCartographicSupport = false; |
851 |
if (symbol instanceof CartographicSupport) { |
852 |
bDrawCartographicSupport = ((CartographicSupport) symbol) |
853 |
.getUnit() != -1;
|
854 |
} |
855 |
|
856 |
double previousSize = 0.0d; |
857 |
|
858 |
if (bDrawCartographicSupport) {
|
859 |
// make the symbol to resize itself with the current rendering
|
860 |
// context
|
861 |
previousSize = ((CartographicSupport) symbol) |
862 |
.toCartographicSize(viewPort, dpi, geom); |
863 |
} |
864 |
|
865 |
try {
|
866 |
symbol.draw(graphics, viewPort.getAffineTransform(), geom, |
867 |
feature, cancellable); |
868 |
} finally {
|
869 |
if (bDrawCartographicSupport) {
|
870 |
// restore previous size
|
871 |
((CartographicSupport) symbol).setCartographicSize( |
872 |
previousSize, geom); |
873 |
} |
874 |
} |
875 |
} |
876 |
} |
877 |
|
878 |
/**
|
879 |
* Draws an {@link Aggregate} using the given {@link ISymbol}, over the
|
880 |
* {@link Graphics2D} object.
|
881 |
*/
|
882 |
private void drawAggregate(Aggregate aggregate, BufferedImage image, |
883 |
Feature feature, ISymbol symbol, ViewPort viewPort, |
884 |
Graphics2D graphics, double dpi, Cancellable cancellable) |
885 |
throws CreateGeometryException {
|
886 |
for (int i = 0; i < aggregate.getPrimitivesNumber(); i++) { |
887 |
Geometry prim = aggregate.getPrimitiveAt(i); |
888 |
drawGeometry(prim, image, feature, symbol, viewPort, graphics, dpi, |
889 |
cancellable); |
890 |
} |
891 |
} |
892 |
|
893 |
@Override
|
894 |
public Object clone() throws CloneNotSupportedException { |
895 |
AbstractVectorialLegend clone = (AbstractVectorialLegend) super.clone();
|
896 |
|
897 |
// Clone zSort
|
898 |
ZSort zSort = getZSort(); |
899 |
if (zSort != null) { |
900 |
clone.setZSort(new ZSort(clone));
|
901 |
} |
902 |
return clone;
|
903 |
} |
904 |
|
905 |
@Override
|
906 |
public void loadFromState(PersistentState state) |
907 |
throws PersistenceException {
|
908 |
// Set parent properties
|
909 |
super.loadFromState(state);
|
910 |
// Set own properties
|
911 |
|
912 |
setShapeType(state.getInt(FIELD_SHAPETYPE)); |
913 |
if (state.getBoolean(FIELD_HAS_ZSORT)) {
|
914 |
setZSort(new ZSort(this)); |
915 |
} |
916 |
setDefaultSymbol((ISymbol) state.get(FIELD_DEFAULT_SYMBOL)); |
917 |
} |
918 |
|
919 |
@Override
|
920 |
public void saveToState(PersistentState state) throws PersistenceException { |
921 |
// Save parent properties
|
922 |
super.saveToState(state);
|
923 |
// Save own properties
|
924 |
state.set(FIELD_SHAPETYPE, getShapeType()); |
925 |
state.set(FIELD_HAS_ZSORT, this.zSort != null); |
926 |
state.set(FIELD_DEFAULT_SYMBOL, getDefaultSymbol()); |
927 |
} |
928 |
|
929 |
public static class RegisterPersistence implements Callable { |
930 |
|
931 |
@Override
|
932 |
public Object call() throws Exception { |
933 |
PersistenceManager manager = ToolsLocator.getPersistenceManager(); |
934 |
if (manager
|
935 |
.getDefinition(VECTORIAL_LEGEND_PERSISTENCE_DEFINITION_NAME) == null) {
|
936 |
DynStruct definition = manager.addDefinition( |
937 |
AbstractVectorialLegend.class, |
938 |
VECTORIAL_LEGEND_PERSISTENCE_DEFINITION_NAME, |
939 |
VECTORIAL_LEGEND_PERSISTENCE_DEFINITION_NAME |
940 |
+ " persistence definition", null, null); |
941 |
// Extend the Legend base definition
|
942 |
definition.extend(manager.getDefinition(LEGEND_PERSISTENCE_DEFINITION_NAME)); |
943 |
|
944 |
// Shapetype
|
945 |
definition.addDynFieldInt(FIELD_SHAPETYPE).setMandatory(true);
|
946 |
// ZSort
|
947 |
definition.addDynFieldBoolean(FIELD_HAS_ZSORT).setMandatory(true);
|
948 |
// Default symbol
|
949 |
definition.addDynFieldObject(FIELD_DEFAULT_SYMBOL) |
950 |
.setClassOfValue(ISymbol.class).setMandatory(true);
|
951 |
} |
952 |
return Boolean.TRUE; |
953 |
} |
954 |
|
955 |
} |
956 |
|
957 |
/**
|
958 |
* Returns the names of the {@link Feature} attributes required for the
|
959 |
* {@link ILegend} to operate.
|
960 |
*
|
961 |
* @param featureStore
|
962 |
* the store where the {@link Feature}s belong to
|
963 |
* @return the names of required {@link Feature} attribute names
|
964 |
* @throws DataException
|
965 |
* if there is an error getting the attribute names
|
966 |
*/
|
967 |
protected abstract String[] getRequiredFeatureAttributeNames( |
968 |
FeatureStore featureStore) throws DataException;
|
969 |
} |