rrenkert@33: package de.intevation.mxd.reader;
rrenkert@25: 
rrenkert@74: import java.lang.Exception;
rrenkert@25: 
rrenkert@25: import org.apache.log4j.Logger;
rrenkert@25: 
rrenkert@25: import com.esri.arcgis.carto.IFeatureRenderer;
rrenkert@25: import com.esri.arcgis.carto.ClassBreaksRenderer;
rrenkert@44: import com.esri.arcgis.display.ISymbol;
rrenkert@45: import com.esri.arcgis.display.SimpleMarkerSymbol;
rrenkert@45: import com.esri.arcgis.display.SimpleFillSymbol;
rrenkert@25: 
rrenkert@31: import org.w3c.dom.Element;
rrenkert@31: 
rrenkert@33: import de.intevation.mxd.utils.MapToXMLUtils;
rrenkert@33: 
rrenkert@25: /**
rrenkert@25:  * Reads the ClassBreaksRender Object Attributes.
rrenkert@25:  *
rrenkert@25:  * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
rrenkert@25:  */
rrenkert@31: public class ClassBreakRendererReader
rrenkert@31: implements IRendererReader {
rrenkert@25: 
rrenkert@31:     /**
rrenkert@31:      * The logger.
rrenkert@31:      */
rrenkert@25:     private static final Logger logger =
rrenkert@25:         Logger.getLogger(ClassBreakRendererReader.class);
rrenkert@25: 
rrenkert@31:     /**
rrenkert@31:      * Private member.
rrenkert@31:      */
rrenkert@25:     private ClassBreaksRenderer renderer;
rrenkert@31:     private Element layer;
rrenkert@31:     private MapToXMLUtils util;
rrenkert@25: 
rrenkert@31: 
rrenkert@31:     public ClassBreakRendererReader(IFeatureRenderer renderer)
rrenkert@31:     throws Exception {
rrenkert@25:         logger.debug("contructor()");
rrenkert@25:         if(renderer instanceof ClassBreaksRenderer)
rrenkert@25:             this.renderer = (ClassBreaksRenderer)renderer;
rrenkert@25:         else
rrenkert@25:             throw new Exception("Not a ClassBreaksRenderer!");
rrenkert@25:     }
rrenkert@25: 
rrenkert@31:     /**
rrenkert@31:      * Setter for the parent XML element.
rrenkert@31:      *
rrenkert@31:      * @param parent The XML parent node.
rrenkert@31:      */
rrenkert@31:     public void setParent(Element parent) {
rrenkert@31:         this.layer = parent;
rrenkert@25:     }
rrenkert@25: 
rrenkert@31:     /**
rrenkert@31:      * Setter for XML document helper.
rrenkert@31:      *
rrenkert@31:      * @param util The helper class for storing map information.
rrenkert@31:      */
rrenkert@31:     public void setUtil(MapToXMLUtils util) {
rrenkert@31:         this.util = util;
rrenkert@31:     }
rrenkert@31: 
rrenkert@31:     /**
rrenkert@31:      * Reads the Renderer attributes.
rrenkert@31:      *
rrenkert@31:      * @return The XML node.
rrenkert@31:      */
rrenkert@31:     public Element read()
rrenkert@74:     throws Exception {
rrenkert@31:         logger.debug("read()");
rrenkert@31: 
rrenkert@44:         for(int i = 0; i < renderer.getBreakCount(); i++){
rrenkert@74:             Element rendererElement = util.addRenderer(layer);
rrenkert@74:             rendererElement.setAttribute("value",
rrenkert@74:                 String.valueOf(renderer.getBreak(i)));
rrenkert@74:             rendererElement.setAttribute(
rrenkert@74:                 "field_count",
rrenkert@74:                 String.valueOf(renderer.getFieldCount()));
rrenkert@74:             for(int j = 0; j < renderer.getFieldCount(); j++) {
rrenkert@44:                 rendererElement.setAttribute(
rrenkert@74:                     "expression_field_" + j,
rrenkert@74:                     renderer.getField(j));
rrenkert@73: 
rrenkert@44:             }
rrenkert@74:             rendererElement.setAttribute(
rrenkert@74:                 "min_value",
rrenkert@74:                 String.valueOf(renderer.getMinimumBreak()));
rrenkert@74:             rendererElement.setAttribute("expression_operator", "<=");
rrenkert@74: 
rrenkert@74:             ISymbol sym = renderer.getSymbol(i);
rrenkert@74:             MarkerSymbolReader markerReader = new MarkerSymbolReader();
rrenkert@74:             LineSymbolReader lineReader = new LineSymbolReader();
rrenkert@74:             FillSymbolReader fillReader = new FillSymbolReader();
rrenkert@74:             if(markerReader.canRead(sym)) {
rrenkert@74:                 markerReader.setSymbol(sym);
rrenkert@74:                 markerReader.setUtil(util);
rrenkert@74:                 markerReader.setParent(rendererElement);
rrenkert@74:                 markerReader.read();
rrenkert@74:             }
rrenkert@74:             else if(lineReader.canRead(sym)) {
rrenkert@74:                 lineReader.setSymbol(sym);
rrenkert@74:                 lineReader.setUtil(util);
rrenkert@74:                 lineReader.setParent(rendererElement);
rrenkert@74:                 lineReader.read();
rrenkert@74:             }
rrenkert@74:             else if(fillReader.canRead(sym)) {
rrenkert@74:                 fillReader.setSymbol(sym);
rrenkert@74:                 fillReader.setUtil(util);
rrenkert@74:                 fillReader.setParent(rendererElement);
rrenkert@74:                 fillReader.read();
rrenkert@74:             }
rrenkert@74:             else {
rrenkert@74:                 logger.debug("Not a known symbol type: " +
rrenkert@74:                              sym.getClass().toString());
rrenkert@44:             }
rrenkert@31:         }
rrenkert@44:         return layer;
rrenkert@25:     }
rrenkert@25: }
rrenkert@25: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :