root / branches / v2_0_0_prep / extensions / org.gvsig.symbology / src / main / java / org / gvsig / symbology / fmap / mapcontext / rendering / legend / impl / AbstractClassifiedVectorLegend.java @ 33331
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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package org.gvsig.symbology.fmap.mapcontext.rendering.legend.impl; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.mapcontext.rendering.legend.IClassifiedVectorLegend; |
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import org.gvsig.fmap.mapcontext.rendering.legend.events.LegendClearEvent; |
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import org.gvsig.fmap.mapcontext.rendering.legend.events.SymbolLegendEvent; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dynobject.DynClass; |
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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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/**
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* Abstract class that implements the interface for legends composed by
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* classified symbols.It will have two methods that will be executed depending
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* on the action that had been done with the legend (addition of a new symbol or
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* clear the legend).
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*
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* @author 2008- pepe vidal salvador - jose.vidal.salvador@iver.es
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* @author 2009- <a href="cordinyana@gvsig.org">C?sar Ordi?ana</a> - gvSIG team
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*/
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public abstract class AbstractClassifiedVectorLegend extends |
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AbstractVectorialLegend implements IClassifiedVectorLegend {
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public static final String CLASSIFIED_VECTOR_LEGEND_PERSISTENCE_DEFINITION_NAME = |
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"ClassifiedVectorLegend";
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private static final String FIELD_FIELD_NAMES = "fieldNames"; |
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private static final String FIELD_FIELD_TYPES = "fieldTypes"; |
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private String[] fieldNames; |
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private int[] fieldTypes; |
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/**
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* Looks for a change in a classified symbol of a legend. To perform it, the
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* Array of LegendListeners is scaned and when the corresponding listener is
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* true, the method is invoked and the change will be done.
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*
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* @param event
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*/
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public void fireClassifiedSymbolChangeEvent(SymbolLegendEvent event) { |
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for (int i = 0; i < getListeners().length; i++) { |
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getListeners()[i].symbolChanged(event); |
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} |
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} |
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/**
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* Looks for a change in a legend of classified symbols. In this case if the
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* specific legend is cleared.
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*
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* @param event
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*/
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public void fireLegendClearEvent(LegendClearEvent event) { |
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for (int i = 0; i < getListeners().length; i++) { |
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getListeners()[i].legendCleared(event); |
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} |
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} |
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public String[] getClassifyingFieldNames() { |
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return fieldNames;
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} |
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public void setClassifyingFieldNames(String[] fieldNames) { |
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this.fieldNames = fieldNames;
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} |
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public int[] getClassifyingFieldTypes() { |
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return fieldTypes;
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} |
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public void setClassifyingFieldTypes(int[] fieldTypes) { |
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this.fieldTypes = fieldTypes;
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} |
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public boolean isSuitableForShapeType(int shapeType) { |
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return getShapeType() == shapeType;
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} |
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protected String[] getRequiredFeatureAttributeNames( |
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FeatureStore featureStore) throws DataException {
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String[] requiredFieldNames = null; |
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String[] classified = getClassifyingFieldNames(); |
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requiredFieldNames = new String[classified.length + 1]; |
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requiredFieldNames[0] =
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featureStore.getDefaultFeatureType() |
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.getDefaultGeometryAttributeName(); |
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for (int i = 1; i < requiredFieldNames.length; i++) { |
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requiredFieldNames[i] = classified[i - 1];
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} |
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return requiredFieldNames;
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} |
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public Object clone() throws CloneNotSupportedException { |
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AbstractClassifiedVectorLegend clone = |
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(AbstractClassifiedVectorLegend) super.clone();
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// Clone fieldNames
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clone.fieldNames = new String[fieldNames.length]; |
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System.arraycopy(fieldNames, 0, clone.fieldNames, 0, fieldNames.length); |
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// Clone fieldTypes
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clone.fieldTypes = new int[fieldTypes.length]; |
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System.arraycopy(fieldTypes, 0, clone.fieldTypes, 0, fieldTypes.length); |
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return clone;
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} |
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public void loadFromState(PersistentState state) |
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throws PersistenceException {
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// Set parent properties
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super.loadFromState(state);
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// Set own properties
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this.fieldNames = state.getStringArray(FIELD_FIELD_NAMES);
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this.fieldTypes = state.getIntArray(FIELD_FIELD_TYPES);
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} |
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public void saveToState(PersistentState state) throws PersistenceException { |
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// Save parent properties
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super.saveToState(state);
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// Save own properties
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state.set(FIELD_FIELD_NAMES, this.fieldNames);
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state.set(FIELD_FIELD_TYPES, this.fieldTypes);
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} |
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public static void registerPersistence() { |
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// Add the DynClass definition.
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DynClass dynClass = |
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ToolsLocator.getDynObjectManager().add( |
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CLASSIFIED_VECTOR_LEGEND_PERSISTENCE_DEFINITION_NAME); |
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// Extend the Vector Legend base definition
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dynClass.extend(VECTORIAL_LEGEND_PERSISTENCE_DEFINITION_NAME); |
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// Field names
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dynClass.addDynFieldArray(FIELD_FIELD_NAMES) |
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.setClassOfItems(String.class);
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// Field types
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dynClass.addDynFieldArray(FIELD_FIELD_TYPES) |
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.setClassOfItems(int.class);
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} |
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} |