Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/raster/DemuxRingsHandler.java @ 875:5e9efdda6894
merged gnv-artifacts/1.0
| author | Thomas Arendsen Hein <thomas@intevation.de> |
|---|---|
| date | Fri, 28 Sep 2012 12:13:56 +0200 |
| parents | feae2f9d6c6f |
| children | f953c9a559d8 |
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| 722:bb3ffe7d719e | 875:5e9efdda6894 |
|---|---|
| 1 package de.intevation.gnv.raster; | |
| 2 | |
| 3 import de.intevation.gnv.raster.Vectorizer.Edge; | |
| 4 import de.intevation.gnv.raster.Vectorizer.RingsHandler; | |
| 5 | |
| 6 import java.util.ArrayList; | |
| 7 import java.util.List; | |
| 8 | |
| 9 /** | |
| 10 * Ring Handler that demultiplexes to a list of other ring handlers. | |
| 11 * Handy if you want to pipe the polygons and line strings produced | |
| 12 * by the Vectorize to more than one handler at once. | |
| 13 * | |
| 14 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> | |
| 15 */ | |
| 16 public class DemuxRingsHandler | |
| 17 implements RingsHandler | |
| 18 { | |
| 19 /** | |
| 20 * The list of internal ring handlers. | |
| 21 */ | |
| 22 protected ArrayList<RingsHandler> handlers; | |
| 23 | |
| 24 /** | |
| 25 * Default constructor. | |
| 26 */ | |
| 27 public DemuxRingsHandler() { | |
| 28 handlers = new ArrayList<RingsHandler>(); | |
| 29 } | |
| 30 | |
| 31 /** | |
| 32 * Add a ring handler to the list of handlers. | |
| 33 * @param handler The handler to add to the internal list. | |
| 34 */ | |
| 35 public void addHandler(RingsHandler handler) { | |
| 36 handlers.add(handler); | |
| 37 } | |
| 38 | |
| 39 public void handleRings( | |
| 40 List<Edge> rings, | |
| 41 int value, | |
| 42 int width, | |
| 43 int height | |
| 44 ) { | |
| 45 for (RingsHandler handler: handlers) { | |
| 46 handler.handleRings(rings, value, width, height); | |
| 47 } | |
| 48 } | |
| 49 | |
| 50 /** | |
| 51 * Empties the internal list of ring handlers. | |
| 52 */ | |
| 53 public void clear() { | |
| 54 handlers.clear(); | |
| 55 } | |
| 56 } | |
| 57 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |