bundles/org.simantics.diagram/src/org/simantics/diagram/connection/ConnectionSegmentType.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.diagram.connection;\r
  13 \r
  14 /**\r
  15  * @author Tuukka Lehtonen\r
  16  */\r
  17 public enum ConnectionSegmentType {\r
  18     CONNECTOR_TO_CONNECTOR,\r
  19     CONNECTOR_TO_BRANCH,\r
  20     BRANCH_TO_BRANCH;\r
  21 \r
  22     public static ConnectionSegmentType toSegmentType(ConnectionSegmentEnd first, ConnectionSegmentEnd second) {\r
  23         ConnectionSegmentEnd other = null;\r
  24         if (first == ConnectionSegmentEnd.CONNECTOR) {\r
  25             other = second;\r
  26         } else if (second == ConnectionSegmentEnd.CONNECTOR) {\r
  27             other = first;\r
  28         } else {\r
  29             return ConnectionSegmentType.BRANCH_TO_BRANCH;\r
  30         }\r
  31         switch (other) {\r
  32             case CONNECTOR:\r
  33                 return ConnectionSegmentType.CONNECTOR_TO_CONNECTOR;\r
  34             case BRANCH:\r
  35                 return ConnectionSegmentType.CONNECTOR_TO_BRANCH;\r
  36             default:\r
  37                 throw new Error("unexpected connection segment end: " + other);\r
  38         }\r
  39     }\r
  40 }