root / branches / v2_0_0_prep / libraries / org.gvsig.symbology / org.gvsig.symbology.lib / org.gvsig.symbology.lib.impl / src / main / java / org / gvsig / symbology / fmap / mapcontext / rendering / legend / styling / AttrInTableLabelingStrategy.java @ 39492
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package org.gvsig.symbology.fmap.mapcontext.rendering.legend.styling; |
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import java.awt.Color; |
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import java.awt.Font; |
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import java.awt.Graphics2D; |
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import java.awt.image.BufferedImage; |
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import java.util.ArrayList; |
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import java.util.List; |
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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.LoggerFactory; |
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import org.gvsig.compat.print.PrintAttributes; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.exception.ReadException; |
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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.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.geom.Geometry; |
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import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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import org.gvsig.fmap.geom.operation.GeometryOperationException; |
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import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.geom.primitive.Point; |
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import org.gvsig.fmap.mapcontext.MapContext; |
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import org.gvsig.fmap.mapcontext.ViewPort; |
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import org.gvsig.fmap.mapcontext.layers.FLayer; |
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import org.gvsig.fmap.mapcontext.layers.vectorial.ContainsEnvelopeEvaluator; |
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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.rendering.legend.styling.ILabelingMethod; |
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import org.gvsig.fmap.mapcontext.rendering.legend.styling.IPlacementConstraints; |
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import org.gvsig.fmap.mapcontext.rendering.legend.styling.IZoomConstraints; |
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import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.impl.CartographicSupportToolkit; |
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import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.text.impl.SimpleTextSymbol; |
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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.dynobject.DynStruct; |
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import org.gvsig.tools.exception.BaseException; |
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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.util.Callable; |
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/**
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* LabelingStrategy used when the user wants to use label sizes, rotations, etc. from
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* the values included in fields of the datasource's table
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*
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* @author jaume dominguez faus - jaume.dominguez@iver.es
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*
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*/
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public class AttrInTableLabelingStrategy implements IAttrInTableLabelingStrategy { |
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private static final String FIELD_LABELING_METHOD = "labelingMethod"; |
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private static final String FIELD_ZOOM_CONSTRAINTS = "zoomConstraints"; |
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private static final String FIELD_COLOR_FONT = "colorFont"; |
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private static final String FIELD_REFERENCE_SYSTEM = "referenceSystem"; |
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private static final String FIELD_FIXED_COLOR = "fixedColor"; |
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private static final String FIELD_USE_FIXED_COLOR = "useFixedColor"; |
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private static final String FIELD_FIXED_SIZE = "fixedSize"; |
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private static final String FIELD_USE_FIXED_SIZE = "useFixedSize"; |
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private static final String FIELD_FONT = "font"; |
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private static final String FIELD_UNIT = "Unit"; |
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private static final String FIELD_ROTATION = "RotationField"; |
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private static final String FIELD_COLOR = "ColorField"; |
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private static final String FIELD_HEIGHT = "HeightField"; |
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private static final String FIELD_TEXT = "TextField"; |
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private static final org.slf4j.Logger logger = LoggerFactory.getLogger(AttrInTableLabelingStrategy.class); |
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public static final double MIN_TEXT_SIZE = 3; |
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private static final String ATTR_IN_TABLE_LABELING_STRATEGY_PERSISTENCE_DEFINITION_NAME = |
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"AttrInTableLabelingStrategy";
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private ILabelingMethod method = new DefaultLabelingMethod(); |
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private IZoomConstraints zoom;
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private FLyrVect layer;
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// private double unitFactor = 1D;
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private double fixedSize=10; |
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private Color fixedColor; |
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private int unit = -1; //(pixel) |
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private boolean useFixedSize; |
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private boolean useFixedColor; |
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private int referenceSystem; |
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// private boolean isPrinting;
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private String[] usedFields = null; |
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private Font font; |
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private Color colorFont; |
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private String textFieldName; |
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private String rotationFieldName; |
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private String heightFieldName; |
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private String colorFieldName; |
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public ILabelingMethod getLabelingMethod() {
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return this.method; |
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} |
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public void setLabelingMethod(ILabelingMethod method) { |
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this.method = method;
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} |
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public IPlacementConstraints getPlacementConstraints() {
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return null; // (automatically handled by the driver) |
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} |
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public void setPlacementConstraints(IPlacementConstraints constraints) { |
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// nothing
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} |
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public IZoomConstraints getZoomConstraints() {
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return zoom;
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} |
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public void setZoomConstraints(IZoomConstraints constraints) { |
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this.zoom = constraints;
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} |
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private void draw(BufferedImage image, Graphics2D g, ViewPort viewPort, |
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Cancellable cancel, PrintAttributes props) throws ReadException {
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double scale = viewPort.getScale();
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SimpleTextSymbol sym = new SimpleTextSymbol();
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sym.setFont(getFont()); |
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sym.setUnit(unit); |
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sym.setReferenceSystem(referenceSystem); |
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if (zoom==null || |
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( zoom.isUserDefined() && (scale >= zoom.getMaxScale()) |
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&& (scale <= zoom.getMinScale()) ) ) {
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FeatureSet set = null;
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DisposableIterator iterator = null;
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try {
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// limit the labeling to the visible extent
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List<String> fields = new ArrayList<String>(); |
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int heightPos =-1; |
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int rotationPos =-1; |
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int textPos = -1; |
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int colorPos = -1; |
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if (!this.usesFixedSize()) { |
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if (getHeightField() != null) { |
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heightPos = fields.size(); |
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fields.add(getHeightField()); |
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} |
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} |
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if (getRotationField() != null) { |
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rotationPos = fields.size(); |
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fields.add(getRotationField()); |
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} |
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if (getTextField() != null) { |
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textPos = fields.size(); |
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fields.add(getTextField()); |
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} |
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if (!this.usesFixedColor() && getColorField() != null) { |
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colorPos = fields.size(); |
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fields.add(getColorField()); |
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} |
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FeatureStore featureStore = layer.getFeatureStore(); |
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ICoordTrans ct = layer.getCoordTrans(); |
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String geomName = featureStore.getDefaultFeatureType().getDefaultGeometryAttributeName();
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fields.add(geomName); |
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if (viewPort.getAdjustedEnvelope().contains(
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layer.getFullEnvelope())) {
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/*
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* viewport contains layer completely
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*/
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set = featureStore.getFeatureSet(); |
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} else {
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/*
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* view port does not contain layer completely
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*/
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IntersectsEnvelopeEvaluator iee = null;
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IProjection data_proj = null;
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Envelope env_in_store_crs = null;
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if (ct == null) { |
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env_in_store_crs = viewPort.getAdjustedEnvelope(); |
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data_proj = viewPort.getProjection(); |
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} else {
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env_in_store_crs = viewPort.getAdjustedEnvelope().convert( |
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ct.getInverted()); |
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data_proj = ct.getPOrig(); |
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} |
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iee = new IntersectsEnvelopeEvaluator(
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env_in_store_crs, |
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data_proj, |
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featureStore.getDefaultFeatureType(), |
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geomName); |
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FeatureQuery featureQuery = featureStore.createFeatureQuery(); |
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featureQuery.setAttributeNames((String[]) fields.toArray(new String[fields.size()])); |
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featureQuery.setFilter(iee); |
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set = featureStore.getFeatureSet(featureQuery); |
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} |
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/*
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* 'set' now has the features that have to be labeled
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*/
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iterator = set.fastIterator(); |
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while(iterator.hasNext()){
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if (cancel.isCanceled()){
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return;
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} |
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Feature feature=(Feature)iterator.next(); |
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double size = 0; |
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Color color = null; |
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if (useFixedSize){
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// uses fixed size
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size = fixedSize;// * fontScaleFactor;
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} else if (heightFieldName != null) { |
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// text size is defined in the table
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try {
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size = feature.getDouble(fields.get(heightPos)); |
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} catch (Exception e) { |
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logger. |
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warn("Null text height value for text '{}'", feature.getString(fields.get(textPos)));
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continue;
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} |
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} else {
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// otherwise will use the size in the symbol
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size = sym.getFont().getSize(); |
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} |
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double the_dpi = MapContext.getScreenDPI();
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if (props != null) { |
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int len = PrintAttributes.PRINT_QUALITY_DPI.length;
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int priq = props.getPrintQuality();
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if (priq < 0 || priq >= len) { |
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throw new ReadException(featureStore.getName(), |
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new Exception("Bad print quality value: " |
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+ priq)); |
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} else {
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the_dpi = PrintAttributes.PRINT_QUALITY_DPI[priq]; |
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} |
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} |
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size = CartographicSupportToolkit. |
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getCartographicLength(this,
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size, |
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viewPort, |
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the_dpi); |
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if (size <= MIN_TEXT_SIZE) {
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// label is too small to be readable, will be skipped
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// this speeds up the rendering in wider zooms
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continue;
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} |
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/*
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* ym.setFontSize(int) assumes dpi = 72
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*/
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sym.setFontSize(size*72/the_dpi);
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if (useFixedColor){
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color = fixedColor; |
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} else if (colorFieldName != null) { |
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// text size is defined in the table
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try {
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color = new Color(feature.getInt(fields.get(colorPos))); |
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} catch (ClassCastException ccEx) { |
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if (feature.get(fields.get(colorPos)) != null) { |
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throw new ReadException("Unknown", ccEx); |
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} |
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logger.warn( |
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"Null color value for text '{}'",
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feature.getString(textFieldName)); |
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continue;
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} |
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} else {
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color = sym.getTextColor(); |
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} |
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sym.setTextColor(color); |
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double rotation = 0D; |
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if (rotationFieldName != null) { |
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// text rotation is defined in the table
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rotation = -Math.toRadians(((Number) feature.get(fields.get(rotationPos))).doubleValue()); |
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} |
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Geometry geom = feature.getDefaultGeometry(); |
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sym.setText(feature.getString(fields.get(textPos))); |
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sym.setRotation(rotation); |
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if (ct != null) { |
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/*
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* Reproject from store CRS to view CRS
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*/
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geom = geom.cloneGeometry(); |
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geom.reProject(ct); |
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} |
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Point p = createLabelPoint(geom);
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if( p != null ) { |
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if (props == null) { |
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sym.draw(g, viewPort.getAffineTransform(), p, feature, cancel); |
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} else {
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sym.print(g, viewPort.getAffineTransform(), p, props); |
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} |
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} |
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} |
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} catch (BaseException e) {
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throw new ReadException( |
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"Could not draw annotation in the layer.", e);
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} finally {
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if (iterator != null) { |
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iterator.dispose(); |
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} |
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if (set != null) { |
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set.dispose(); |
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} |
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} |
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} |
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} |
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public void draw(BufferedImage image, Graphics2D g, ViewPort viewPort, |
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Cancellable cancel, double dpi) throws ReadException { |
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draw(image, g, viewPort, cancel, null);
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} |
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private org.gvsig.fmap.geom.primitive.Point createLabelPoint(org.gvsig.fmap.geom.Geometry geom)
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throws CreateGeometryException {
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try {
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return geom.centroid();
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} catch (GeometryOperationNotSupportedException e) {
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return null; |
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} catch (GeometryOperationException e) {
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return null; |
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} |
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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 String getRotationField() { |
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return this.rotationFieldName; |
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} |
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public String getTextField() { |
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return this.textFieldName; |
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} |
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public String getHeightField() { |
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return this.heightFieldName; |
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} |
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public String getColorField() { |
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return this.colorFieldName; |
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} |
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public void setTextField(String textFieldName) { |
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this.textFieldName=textFieldName;
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this.usedFields = null; |
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} |
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public void setRotationField(String rotationFieldName) { |
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this.rotationFieldName = rotationFieldName;
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this.usedFields = null; |
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} |
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/**
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* Sets the field that contains the size of the text. The size is computed
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* in meters. To use any other unit, call setUnit(int) with the scale factor from meters
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* (for centimeters, call <b>setUnitFactor(0.01))</b>.
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* @param heightFieldName
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*/
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public void setHeightField(String heightFieldName) { |
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this.heightFieldName = heightFieldName;
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this.usedFields = null; |
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} |
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public void setColorField(String colorFieldName) { |
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this.colorFieldName = colorFieldName;
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} |
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public void print(Graphics2D g, ViewPort viewPort, Cancellable cancel, |
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PrintAttributes props) throws ReadException {
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draw(null, g, viewPort, cancel, props);
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} |
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public void setUsesFixedSize(boolean b) { |
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useFixedSize = b; |
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this.usedFields = null; |
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} |
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public boolean usesFixedSize() { |
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return useFixedSize;
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} |
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public double getFixedSize() { |
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return fixedSize;
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} |
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public void setFixedSize(double fixedSize) { |
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this.fixedSize = fixedSize;
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this.usedFields = null; |
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} |
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public void setUsesFixedColor(boolean b) { |
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useFixedColor = b; |
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this.usedFields = null; |
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} |
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public boolean usesFixedColor() { |
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return useFixedColor;
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} |
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public Color getFixedColor() { |
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return fixedColor;
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} |
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public void setFixedColor(Color fixedColor) { |
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this.fixedColor = fixedColor;
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} |
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public void setUnit(int unitIndex) { |
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unit = unitIndex; |
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} |
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public int getUnit() { |
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return unit;
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} |
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public String[] getUsedFields() { |
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if (this.usedFields == null) { |
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List<String> v = new ArrayList<String>(4); |
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if (!this.usesFixedSize()) { |
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if (getHeightField() != null) { |
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v.add(getHeightField()); |
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} |
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} |
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if (getRotationField() != null) { |
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v.add(getRotationField()); |
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} |
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if (getTextField() != null) { |
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v.add(getTextField()); |
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} |
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if (!this.usesFixedColor() && getColorField() != null) { |
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v.add(getColorField()); |
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} |
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this.usedFields = (String[]) v.toArray(new String[v.size()]); |
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} |
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return this.usedFields; |
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} |
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public int getReferenceSystem() { |
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return referenceSystem;
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} |
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public void setReferenceSystem(int referenceSystem) { |
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this.referenceSystem = referenceSystem;
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} |
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public double toCartographicSize(ViewPort viewPort, double dpi, Geometry geom) { |
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// not required here
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throw new Error("Undefined in this context"); |
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} |
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public void setCartographicSize(double cartographicSize, Geometry geom) { |
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// not required here
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throw new Error("Undefined in this context"); |
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} |
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public double getCartographicSize(ViewPort viewPort, double dpi, Geometry geom) { |
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// not required here
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throw new Error("Undefined in this context"); |
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} |
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public void setLayer(FLayer layer) { |
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this.layer = (FLyrVect) layer;
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if (layer == null) { |
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return;
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} |
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FeatureType type; |
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try {
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type = this.layer.getFeatureStore().getDefaultFeatureType();
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} catch (DataException e) {
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throw new RuntimeException(this.getClass().getName(), e); |
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} |
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if (textFieldName != null) { |
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if (type.getIndex(textFieldName) < 0) { |
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// FIXME exception ??
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} |
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} |
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if (rotationFieldName != null) { |
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if (type.getIndex(rotationFieldName) < 0) { |
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// FIXME exception ??
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} |
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} |
| 513 |
if (heightFieldName != null) { |
| 514 |
if (type.getIndex(heightFieldName) < 0) { |
| 515 |
// FIXME exception ??
|
| 516 |
} |
| 517 |
} |
| 518 |
if (colorFieldName != null) { |
| 519 |
if (type.getIndex(colorFieldName) < 0) { |
| 520 |
// FIXME exception ??
|
| 521 |
} |
| 522 |
} |
| 523 |
} |
| 524 |
|
| 525 |
public boolean shouldDrawLabels(double scale) { |
| 526 |
return layer.isWithinScale(scale);
|
| 527 |
} |
| 528 |
public Color getColorFont() { |
| 529 |
return colorFont;
|
| 530 |
} |
| 531 |
|
| 532 |
public void setColorFont(Color colorFont) { |
| 533 |
this.colorFont = colorFont;
|
| 534 |
} |
| 535 |
|
| 536 |
public Font getFont() { |
| 537 |
return font;
|
| 538 |
} |
| 539 |
|
| 540 |
public void setFont(Font selFont) { |
| 541 |
this.font = selFont;
|
| 542 |
} |
| 543 |
|
| 544 |
/* (non-Javadoc)
|
| 545 |
* @see org.gvsig.tools.persistence.Persistent#loadFromState(org.gvsig.tools.persistence.PersistentState)
|
| 546 |
*/
|
| 547 |
public void loadFromState(PersistentState state) |
| 548 |
throws PersistenceException {
|
| 549 |
|
| 550 |
setTextField(state.getString(FIELD_TEXT)); |
| 551 |
setHeightField(state.getString(FIELD_HEIGHT)); |
| 552 |
setColorField(state.getString(FIELD_COLOR)); |
| 553 |
setRotationField(state.getString(FIELD_ROTATION)); |
| 554 |
setUnit(state.getInt(FIELD_UNIT)); |
| 555 |
setFont((Font) state.get(FIELD_FONT));
|
| 556 |
useFixedSize = state.getBoolean(FIELD_USE_FIXED_SIZE); |
| 557 |
setFixedSize(state.getDouble(FIELD_FIXED_SIZE)); |
| 558 |
useFixedColor = state.getBoolean(FIELD_USE_FIXED_COLOR); |
| 559 |
setFixedColor((Color) state.get(FIELD_FIXED_COLOR));
|
| 560 |
setReferenceSystem(state.getInt(FIELD_REFERENCE_SYSTEM)); |
| 561 |
setColorFont((Color) state.get(FIELD_COLOR_FONT));
|
| 562 |
setZoomConstraints((IZoomConstraints) state.get(FIELD_ZOOM_CONSTRAINTS)); |
| 563 |
setLabelingMethod((ILabelingMethod) state.get(FIELD_LABELING_METHOD)); |
| 564 |
} |
| 565 |
|
| 566 |
/* (non-Javadoc)
|
| 567 |
* @see org.gvsig.tools.persistence.Persistent#saveToState(org.gvsig.tools.persistence.PersistentState)
|
| 568 |
*/
|
| 569 |
public void saveToState(final PersistentState state) throws PersistenceException { |
| 570 |
state.set(FIELD_TEXT, getTextField()); |
| 571 |
state.set(FIELD_HEIGHT, getHeightField()); |
| 572 |
state.set(FIELD_COLOR, getColorField()); |
| 573 |
state.set(FIELD_ROTATION, getRotationField()); |
| 574 |
state.set(FIELD_UNIT, getUnit()); |
| 575 |
state.set(FIELD_FONT, getFont()); |
| 576 |
state.set(FIELD_USE_FIXED_SIZE, useFixedSize); |
| 577 |
state.set(FIELD_FIXED_SIZE, getFixedSize()); |
| 578 |
state.set(FIELD_USE_FIXED_COLOR, useFixedColor); |
| 579 |
state.set(FIELD_FIXED_COLOR, getFixedColor()); |
| 580 |
state.set(FIELD_REFERENCE_SYSTEM, getReferenceSystem()); |
| 581 |
state.set(FIELD_COLOR_FONT, getColorFont()); |
| 582 |
state.set(FIELD_ZOOM_CONSTRAINTS, getZoomConstraints()); |
| 583 |
state.set(FIELD_LABELING_METHOD, getLabelingMethod()); |
| 584 |
} |
| 585 |
|
| 586 |
public static class RegisterPersistence implements Callable { |
| 587 |
|
| 588 |
public Object call() throws Exception { |
| 589 |
PersistenceManager manager = ToolsLocator.getPersistenceManager(); |
| 590 |
if( manager.getDefinition(ATTR_IN_TABLE_LABELING_STRATEGY_PERSISTENCE_DEFINITION_NAME)==null ) { |
| 591 |
DynStruct definition = manager.addDefinition( |
| 592 |
AttrInTableLabelingStrategy.class, |
| 593 |
ATTR_IN_TABLE_LABELING_STRATEGY_PERSISTENCE_DEFINITION_NAME, |
| 594 |
ATTR_IN_TABLE_LABELING_STRATEGY_PERSISTENCE_DEFINITION_NAME+" Persistence definition",
|
| 595 |
null,
|
| 596 |
null
|
| 597 |
); |
| 598 |
definition.addDynFieldString(FIELD_TEXT).setMandatory(true);
|
| 599 |
definition.addDynFieldString(FIELD_HEIGHT).setMandatory(false);
|
| 600 |
definition.addDynFieldString(FIELD_COLOR).setMandatory(false);
|
| 601 |
definition.addDynFieldString(FIELD_ROTATION).setMandatory(false);
|
| 602 |
definition.addDynFieldInt(FIELD_UNIT).setMandatory(true);
|
| 603 |
definition.addDynFieldObject(FIELD_FONT).setMandatory(false).setClassOfValue(Font.class); |
| 604 |
definition.addDynFieldBoolean(FIELD_USE_FIXED_SIZE).setMandatory(true);
|
| 605 |
definition.addDynFieldDouble(FIELD_FIXED_SIZE).setMandatory(false);
|
| 606 |
definition.addDynFieldBoolean(FIELD_USE_FIXED_COLOR).setMandatory(true);
|
| 607 |
definition.addDynFieldObject(FIELD_FIXED_COLOR).setMandatory(false).setClassOfValue(Color.class); |
| 608 |
definition.addDynFieldInt(FIELD_REFERENCE_SYSTEM).setMandatory(true);
|
| 609 |
definition.addDynFieldObject(FIELD_COLOR_FONT).setMandatory(false).setClassOfValue(Color.class); |
| 610 |
definition.addDynFieldObject(FIELD_ZOOM_CONSTRAINTS).setMandatory(false).setClassOfValue(IZoomConstraints.class);
|
| 611 |
definition.addDynFieldObject(FIELD_LABELING_METHOD).setMandatory(true).setClassOfValue(ILabelingMethod.class);
|
| 612 |
} |
| 613 |
return Boolean.TRUE; |
| 614 |
} |
| 615 |
|
| 616 |
} |
| 617 |
} |