Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/raster/DemuxRingsHandler.java @ 1129:ccfa07b88476

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merged geo-backend
author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 28 Sep 2012 12:14:01 +0200
parents f953c9a559d8
children
rev   line source
1115
f953c9a559d8 Added license file and license headers.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 803
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1 /*
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2 * Copyright (c) 2010 by Intevation GmbH
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8
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9 package de.intevation.gnv.raster;
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10
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11 import de.intevation.gnv.raster.Vectorizer.Edge;
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12 import de.intevation.gnv.raster.Vectorizer.RingsHandler;
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13
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14 import java.util.ArrayList;
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15 import java.util.List;
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16
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17 /**
802
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18 * Ring Handler that demultiplexes to a list of other ring handlers.
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19 * Handy if you want to pipe the polygons and line strings produced
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20 * by the Vectorize to more than one handler at once.
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21 *
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22 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a>
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23 */
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24 public class DemuxRingsHandler
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25 implements RingsHandler
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26 {
802
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27 /**
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28 * The list of internal ring handlers.
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29 */
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30 protected ArrayList<RingsHandler> handlers;
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31
802
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32 /**
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33 * Default constructor.
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34 */
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35 public DemuxRingsHandler() {
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36 handlers = new ArrayList<RingsHandler>();
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37 }
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38
802
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39 /**
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40 * Add a ring handler to the list of handlers.
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41 * @param handler The handler to add to the internal list.
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42 */
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43 public void addHandler(RingsHandler handler) {
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44 handlers.add(handler);
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45 }
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46
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47 public void handleRings(
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48 List<Edge> rings,
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49 int value,
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50 int width,
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51 int height
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52 ) {
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53 for (RingsHandler handler: handlers) {
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54 handler.handleRings(rings, value, width, height);
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55 }
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56 }
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57
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58 /**
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59 * Empties the internal list of ring handlers.
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60 */
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61 public void clear() {
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62 handlers.clear();
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63 }
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64 }
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65 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org