1 files changed, 66 insertions, 0 deletions
diff --git a/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.tooling.runtime/src/org/eclipse/papyrus/infra/gmfdiag/tooling/runtime/linklf/router/HintedOrthogonalRouter.java b/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.tooling.runtime/src/org/eclipse/papyrus/infra/gmfdiag/tooling/runtime/linklf/router/HintedOrthogonalRouter.java
new file mode 100755
index 00000000000..f4804251da4
--- /dev/null
+++ b/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.tooling.runtime/src/org/eclipse/papyrus/infra/gmfdiag/tooling/runtime/linklf/router/HintedOrthogonalRouter.java
@@ -0,0 +1,66 @@
+/*****************************************************************************
+ * Copyright (c) 2014-15 CEA LIST, Montages AG and others.
+ * 
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *   Michael Golubev (Montages) - Initial API and implementation
+ *   
+ *****************************************************************************/
+package  org.eclipse.papyrus.infra.gmfdiag.tooling.runtime.linklf.router;
+
+import org.eclipse.draw2d.Connection;
+import org.eclipse.gmf.runtime.draw2d.ui.internal.routers.OrthogonalRouter;
+import org.eclipse.gmf.runtime.draw2d.ui.internal.routers.RectilinearRouter;
+
+/**
+ * When connection anchor and first/last bendpoint are not aligned vertically /
+ * horizontally, the {@link OrthogonalRouter} has to decide whether the first /
+ * last segment of link will go:
+ * <ul>
+ * <li>from bendpoint to some point different to anchor</li>
+ * <li>from anchor to some point different to bendpoint</li>
+ * </ul>
+ * The default {@link RectilinearRouter} always prefers the first choice.
+ * <p>
+ * This router extends the {@link OrthogonalRouter} with ability to specify the
+ * hint for this choice externally, on the per-connection basis.
+ * 
+ * @since 3.3
+ */
+public interface HintedOrthogonalRouter extends OrthogonalRouter {
+
+	/**
+	 * Specifies 2 possible strategy for the routing of the first / last link
+	 * segment.
+	 * <ul>
+	 * <li> {@link EndRoutingHint#FixBendpointMoveAnchor} is default behavior. It
+	 * will route the segment from bendpoint to some point different to anchor</li>
+	 * <li> {@link EndRoutingHint#FixAnchorMoveBendpoint} will route from anchor
+	 * to some point different to bendpoint</li>
+	 * </ul>
+	 */
+	public static enum EndRoutingHint {
+		FixAnchorMoveBendpoint, //
+		FixBendpointMoveAnchor;
+	}
+
+	/**
+	 * Returns default strategy for this router which will be used when hint is
+	 * not specified.
+	 */
+	public EndRoutingHint getDefaultEndRoutingStrategy();
+
+	/**
+	 * Asks router to use specified strategy for given connection.
+	 * 
+	 * @param hint
+	 *            desired hint or <code>null</code> to revert connection back to
+	 *            default strategy.
+	 */
+	public void setEndRoutingHint(Connection conn, EndRoutingHint hint);
+
+}