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 / styling / DefaultLabelingMethod.java @ 43020
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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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package org.gvsig.symbology.fmap.mapcontext.rendering.legend.styling; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.FeatureQuery; |
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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.mapcontext.ViewPort; |
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import org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect; |
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import org.gvsig.fmap.mapcontext.layers.vectorial.IntersectsEnvelopeEvaluator; |
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import org.gvsig.fmap.mapcontext.layers.vectorial.SpatialEvaluatorsFactory; |
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import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelClass; |
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import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelingMethod; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dynobject.DynStruct; |
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import org.gvsig.tools.evaluator.AndEvaluator; |
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import org.gvsig.tools.evaluator.Evaluator; |
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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.util.Callable; |
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public class DefaultLabelingMethod implements ILabelingMethod { |
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private static final String FIELD_DEFAULT_LABEL = "defaultLabel"; |
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private static final String DEFAULT_LABELING_METHOD_PERSISTENCE_DEFINITION_NAME = |
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"DefaultLabelingMethod";
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private ILabelClass defaultLabel;
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/**
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* Empty constructor for persistence.
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*/
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public DefaultLabelingMethod() {
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// Nothing to do
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} |
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public DefaultLabelingMethod(LabelClass defaultLabel) {
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this();
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this.defaultLabel = defaultLabel;
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} |
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public void addLabelClass(ILabelClass lbl) { |
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defaultLabel = lbl; |
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} |
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public void deleteLabelClass(ILabelClass lbl) { |
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// does nothing
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} |
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public String getClassName() { |
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return getClass().getName();
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} |
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public boolean allowsMultipleClass() { |
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return false; |
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} |
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public void renameLabelClass(ILabelClass lbl, String newName) { |
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// does nothing
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} |
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public FeatureSet getFeatureIteratorByLabelClass(
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FLyrVect layer, |
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ILabelClass lc, |
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ViewPort viewPort, |
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String[] usedFields) throws DataException { |
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FeatureStore featureStore=layer.getFeatureStore(); |
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if (viewPort == null && usedFields == null) { |
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// nothing more to do
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return featureStore.getFeatureSet();
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} |
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FeatureQuery featureQuery=featureStore.createFeatureQuery(); |
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if (usedFields != null) { |
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featureQuery.setAttributeNames(usedFields); |
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} |
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Evaluator eva = null;
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if (viewPort != null) { |
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eva = SpatialEvaluatorsFactory.getInstance().intersects( |
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viewPort.getAdjustedEnvelope(), |
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layer.getProjection(), |
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featureStore |
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); |
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} |
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if (lc.getSQLQuery() != null && lc.getSQLQuery().trim().length() > 0) { |
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Evaluator vp_eva = eva; |
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AndEvaluator and_eva = new AndEvaluator(vp_eva);
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String sql_str = lc.getSQLQuery();
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/*
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* SQL filter was validated in the dialog
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*/
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Evaluator sql_eval = EvaluatorCreator.getEvaluator(sql_str); |
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and_eva.addEvaluator(sql_eval); |
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eva = and_eva; |
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} |
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featureQuery.setFilter(eva); |
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return (FeatureSet)featureStore.getFeatureSet(featureQuery);
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} |
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public boolean definesPriorities() { |
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return false; |
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} |
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public void setDefinesPriorities(boolean flag) { |
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/* nothing, since only one label class is suported */
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} |
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public ILabelClass getLabelClassByName(String labelName) { |
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return defaultLabel;
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} |
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public void clearAllClasses() { |
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defaultLabel = null;
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} |
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public ILabelClass[] getLabelClasses() { |
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return defaultLabel == null ? new ILabelClass[0] : new ILabelClass[] { defaultLabel }; |
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} |
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public ILabelingMethod cloneMethod() {
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//XMLENTITY-UPDATED
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// if (defaultLabel !=null)
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// try {
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// return new DefaultLabelingMethod(LabelingFactory.createLabelClassFromXML(defaultLabel.getXMLEntity()));
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// } catch (XMLException e) {
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// // TODO Auto-generated catch block
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// e.printStackTrace();
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// }
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return new DefaultLabelingMethod(); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.tools.persistence.Persistent#loadFromState(org.gvsig.tools.persistence.PersistentState)
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*/
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public void loadFromState(PersistentState state) |
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throws PersistenceException {
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defaultLabel = (ILabelClass) state.get(FIELD_DEFAULT_LABEL); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.tools.persistence.Persistent#saveToState(org.gvsig.tools.persistence.PersistentState)
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*/
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public void saveToState(PersistentState state) throws PersistenceException { |
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state.set(FIELD_DEFAULT_LABEL, defaultLabel); |
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} |
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public static class RegisterPersistence implements Callable { |
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public Object call() throws Exception { |
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PersistenceManager manager = ToolsLocator.getPersistenceManager(); |
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if( manager.getDefinition(DEFAULT_LABELING_METHOD_PERSISTENCE_DEFINITION_NAME)==null ) { |
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DynStruct definition = manager.addDefinition( |
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DefaultLabelingMethod.class, |
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DEFAULT_LABELING_METHOD_PERSISTENCE_DEFINITION_NAME, |
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DEFAULT_LABELING_METHOD_PERSISTENCE_DEFINITION_NAME+" Persistence definition",
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null,
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null
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); |
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definition.addDynFieldObject(FIELD_DEFAULT_LABEL).setMandatory(false).setClassOfValue(ILabelClass.class);
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} |
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return Boolean.TRUE; |
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} |
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} |
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} |