Mercurial > mxd2map
view src/java/de/intevation/mxd/reader/ClassBreakRendererReader.java @ 146:e4a8c39985d7
* mxd/Styles/label/*: Added two examples to show basic labeling
within an MXD. More will not be supported though.
author | Stephan Holl <stephan.holl@intevation.de> |
---|---|
date | Wed, 29 Jun 2011 17:36:44 +0200 |
parents | ff0354265a7d |
children | 0bde090506f9 |
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package de.intevation.mxd.reader; import java.lang.Exception; import org.apache.log4j.Logger; import com.esri.arcgis.carto.IFeatureRenderer; import com.esri.arcgis.carto.ClassBreaksRenderer; import com.esri.arcgis.display.ISymbol; import org.w3c.dom.Element; import de.intevation.mxd.utils.MapToXMLUtils; import java.io.IOException; /** * Reads the ClassBreaksRender Object Attributes. * * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a> */ public class ClassBreakRendererReader implements IRendererReader { /** * The logger. */ private static final Logger logger = Logger.getLogger(ClassBreakRendererReader.class); /** * Private member. */ private ClassBreaksRenderer renderer; private Element layer; private MapToXMLUtils util; public ClassBreakRendererReader(IFeatureRenderer renderer) throws Exception { logger.debug("contructor()"); if(renderer instanceof ClassBreaksRenderer) this.renderer = (ClassBreaksRenderer)renderer; else throw new Exception("Not a ClassBreaksRenderer!"); } /** * Setter for the parent XML element. * * @param parent The XML parent node. */ public void setParent(Element parent) { this.layer = parent; } /** * Setter for XML document helper. * * @param util The helper class for storing map information. */ public void setUtil(MapToXMLUtils util) { this.util = util; } /** * Reads the Renderer attributes. * * @return The XML node. */ public Element read() { logger.debug("read()"); int count = 0; try { count = renderer.getBreakCount(); } catch(IOException ioe) { logger.warn( "No break symbols found in renderer." + " Stopped reading this renderer."); return layer; } for(int i = 0; i < count; i++){ Element rendererElement = util.addRenderer(layer); try { rendererElement.setAttribute("value", String.valueOf(renderer.getBreak(i))); rendererElement.setAttribute("label", renderer.getLabel(i)); rendererElement.setAttribute( "field_count", String.valueOf(renderer.getFieldCount())); for(int j = 0; j < renderer.getFieldCount(); j++) { rendererElement.setAttribute( "expression_field_" + j, renderer.getField(j)); } rendererElement.setAttribute( "min_value", String.valueOf(renderer.getLowBreak(i))); rendererElement.setAttribute("expression_operator", "<="); ISymbol sym = renderer.getSymbol(i); MarkerSymbolReader markerReader = new MarkerSymbolReader(); LineSymbolReader lineReader = new LineSymbolReader(); FillSymbolReader fillReader = new FillSymbolReader(); if(markerReader.canRead(sym)) { markerReader.setSymbol(sym); markerReader.setUtil(util); markerReader.setParent(rendererElement); markerReader.read(); } else if(lineReader.canRead(sym)) { lineReader.setSymbol(sym); lineReader.setUtil(util); lineReader.setParent(rendererElement); lineReader.read(); } else if(fillReader.canRead(sym)) { fillReader.setSymbol(sym); fillReader.setUtil(util); fillReader.setParent(rendererElement); fillReader.read(); } else { logger.debug("Not a known symbol type: " + sym.getClass().toString()); } } catch(Exception e) { logger.error( "Could not read data for " + i + ". break of renderer. Stopped reading this renderer."); return layer; } } return layer; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :