Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/raster/DemuxRingsHandler.java @ 1119:7c4f81f74c47
merged gnv-artifacts
| author | Thomas Arendsen Hein <thomas@intevation.de> |
|---|---|
| date | Fri, 28 Sep 2012 12:14:00 +0200 |
| parents | f953c9a559d8 |
| children |
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| 1027:fca4b5eb8d2f | 1119:7c4f81f74c47 |
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| 1 /* | |
| 2 * Copyright (c) 2010 by Intevation GmbH | |
| 3 * | |
| 4 * This program is free software under the LGPL (>=v2.1) | |
| 5 * Read the file LGPL.txt coming with the software for details | |
| 6 * or visit http://www.gnu.org/licenses/ if it does not exist. | |
| 7 */ | |
| 8 | |
| 9 package de.intevation.gnv.raster; | |
| 10 | |
| 11 import de.intevation.gnv.raster.Vectorizer.Edge; | |
| 12 import de.intevation.gnv.raster.Vectorizer.RingsHandler; | |
| 13 | |
| 14 import java.util.ArrayList; | |
| 15 import java.util.List; | |
| 16 | |
| 17 /** | |
| 18 * Ring Handler that demultiplexes to a list of other ring handlers. | |
| 19 * Handy if you want to pipe the polygons and line strings produced | |
| 20 * by the Vectorize to more than one handler at once. | |
| 21 * | |
| 22 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> | |
| 23 */ | |
| 24 public class DemuxRingsHandler | |
| 25 implements RingsHandler | |
| 26 { | |
| 27 /** | |
| 28 * The list of internal ring handlers. | |
| 29 */ | |
| 30 protected ArrayList<RingsHandler> handlers; | |
| 31 | |
| 32 /** | |
| 33 * Default constructor. | |
| 34 */ | |
| 35 public DemuxRingsHandler() { | |
| 36 handlers = new ArrayList<RingsHandler>(); | |
| 37 } | |
| 38 | |
| 39 /** | |
| 40 * Add a ring handler to the list of handlers. | |
| 41 * @param handler The handler to add to the internal list. | |
| 42 */ | |
| 43 public void addHandler(RingsHandler handler) { | |
| 44 handlers.add(handler); | |
| 45 } | |
| 46 | |
| 47 public void handleRings( | |
| 48 List<Edge> rings, | |
| 49 int value, | |
| 50 int width, | |
| 51 int height | |
| 52 ) { | |
| 53 for (RingsHandler handler: handlers) { | |
| 54 handler.handleRings(rings, value, width, height); | |
| 55 } | |
| 56 } | |
| 57 | |
| 58 /** | |
| 59 * Empties the internal list of ring handlers. | |
| 60 */ | |
| 61 public void clear() { | |
| 62 handlers.clear(); | |
| 63 } | |
| 64 } | |
| 65 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |