Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.diagram.connection / src / org / simantics / diagram / connection / Directions.java

diff --git a/bundles/org.simantics.diagram.connection/src/org/simantics/diagram/connection/Directions.java b/bundles/org.simantics.diagram.connection/src/org/simantics/diagram/connection/Directions.java
new file mode 100644 (file)
index 0000000..e4b174b
--- /dev/null
+++ b/bundles/org.simantics.diagram.connection/src/org/simantics/diagram/connection/Directions.java
@@ -0,0 +1,28 @@
+/*******************************************************************************\r
+ * Copyright (c) 2011 Association for Decentralized Information Management in\r
+ * Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.diagram.connection;\r
+\r
+public class Directions {\r
+\r
+    public static boolean isAllowed(int allowedDirection, int direction) {\r
+        return ((allowedDirection >> direction)&1) == 1;\r
+    }\r
+\r
+    public static int firstAllowedDirection(int allowedDirections) {\r
+        for(int dir=0;dir<4;++dir,allowedDirections>>=1) {\r
+            if((allowedDirections&1) == 1)\r
+                return dir;\r
+        }\r
+        return 0;\r
+    }\r
+    \r
+}\r