rrenkert@87: package de.intevation.mxd.writer;
rrenkert@87: 
rrenkert@87: import org.apache.log4j.Logger;
rrenkert@87: 
rrenkert@87: import org.w3c.dom.Element;
rrenkert@87: 
rrenkert@87: import edu.umn.gis.mapscript.mapObj;
rrenkert@87: import edu.umn.gis.mapscript.classObj;
rrenkert@87: import edu.umn.gis.mapscript.styleObj;
rrenkert@87: import edu.umn.gis.mapscript.symbolObj;
rrenkert@87: import edu.umn.gis.mapscript.symbolSetObj;
rrenkert@87: import edu.umn.gis.mapscript.lineObj;
rrenkert@87: import edu.umn.gis.mapscript.pointObj;
rrenkert@87: import edu.umn.gis.mapscript.MS_SYMBOL_TYPE;
rrenkert@87: 
rrenkert@87: 
rrenkert@87: /**
rrenkert@87:  * The interface to the mapfile writer.
rrenkert@87:  *
rrenkert@87:  * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
rrenkert@87:  */
rrenkert@87: public class SymbolWriter {
rrenkert@87: 
rrenkert@87:     /**
rrenkert@87:      * The Logger.
rrenkert@87:      */
rrenkert@87:     private static final Logger logger = Logger.getLogger(SymbolWriter.class);
rrenkert@87: 
rrenkert@87:     private mapObj map;
rrenkert@87:     private classObj cl;
rrenkert@87:     private styleObj style;
rrenkert@87: 
rrenkert@87:     public SymbolWriter (mapObj map, classObj cl) {
rrenkert@87:         this.map = map;
rrenkert@87:         this.cl = cl;
rrenkert@87:         this.style = new styleObj(cl);
rrenkert@87:     }
rrenkert@87: 
rrenkert@87:     /**
rrenkert@87:      * Write the content.
rrenkert@87:      */
rrenkert@87:     public boolean write(Element symbolElement)
rrenkert@87:     throws Exception {
rrenkert@87:         logger.debug("write(Element)");
rrenkert@87:         symbolSetObj symbolSet = map.getSymbolset();
rrenkert@87: 
rrenkert@87:         String name = symbolElement.getAttribute("name");
rrenkert@87:         symbolObj sym = symbolSet.getSymbolByName(name);
rrenkert@87: 
rrenkert@87:         String symType = symbolElement.getAttribute("style");
rrenkert@87:         if(symType.equals("point")) {
rrenkert@87:             writeSimple(sym);
rrenkert@87:         }
rrenkert@87:         else if (symType.equals("arrow")) {
rrenkert@87:             writeArrow(sym, symbolElement);
rrenkert@87:         }
rrenkert@87:         else if (symType.equals("char")) {
rrenkert@87:             //TODO Does not work at all...  waiting for fix.
rrenkert@87:             writeCharacter(sym, symbolElement);
rrenkert@87:         }
rrenkert@87:         else {
rrenkert@87:             return false;
rrenkert@87:         }
rrenkert@87:         return true;
rrenkert@87:     }
rrenkert@87: 
rrenkert@87:     private void writeSimple(symbolObj symbol) {
rrenkert@87:         logger.debug("writeSimple(symbolObj)");
rrenkert@87:         lineObj points = new lineObj();
rrenkert@87:         points.add(new pointObj(1,1,0));
rrenkert@87:         symbol.setType(MS_SYMBOL_TYPE.MS_SYMBOL_ELLIPSE.swigValue());
rrenkert@87:         symbol.setPoints(points);
rrenkert@87:         symbol.setFilled(1);
rrenkert@87:     }
rrenkert@87: 
rrenkert@87:     private void writeArrow(symbolObj symbol, Element symbolElement) {
rrenkert@87:         logger.debug("writeArrow(symbolObj, Element)");
rrenkert@87:         double len = Double.parseDouble(symbolElement.getAttribute("length"));
rrenkert@87:         double width = Double.parseDouble(symbolElement.getAttribute("width"));
rrenkert@87:         double ratio = len/width;
rrenkert@87:         lineObj points = new lineObj();
rrenkert@87: 
rrenkert@87:         points.add(new pointObj(0, 0, 0));
rrenkert@87:         points.add(new pointObj((1*ratio), 0.5, 0));
rrenkert@87:         points.add(new pointObj(0, 1, 0));
rrenkert@87:         points.add(new pointObj(0, 0, 0));
rrenkert@87:         symbol.setType(MS_SYMBOL_TYPE.MS_SYMBOL_VECTOR.swigValue());
rrenkert@87:         symbol.setPoints(points);
rrenkert@87:         symbol.setFilled(1);
rrenkert@87:     }
rrenkert@87: 
rrenkert@87:     private void writeCharacter(symbolObj symbol, Element symbolElement) {
rrenkert@87:         logger.debug("writeCharacter(symbolObj, Element)");
rrenkert@87:         //TODO Write the symbol correctly. See Issue 3885 on trac.osgeo.org
rrenkert@87:         symbol.setFont(symbolElement.getAttribute("font"));
rrenkert@87:         symbol.setType(MS_SYMBOL_TYPE.MS_SYMBOL_TRUETYPE.swigValue());
rrenkert@87:         symbol.setAntialias(1);
rrenkert@87:         symbol.setCharacter("#&" + symbolElement.getAttribute("char") + ";");
rrenkert@87:     }
rrenkert@87: 
rrenkert@87:     public boolean canWrite(String type) {
rrenkert@87:         if (type.equals("point") ||
rrenkert@87:             type.equals("arrow") ||
rrenkert@87:             type.equals("char")) {
rrenkert@87:             return true;
rrenkert@87:         }
rrenkert@87:         else {
rrenkert@87:             return false;
rrenkert@87:         }
rrenkert@87:     }
rrenkert@87: }
rrenkert@87: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :