1 files changed, 100 insertions, 0 deletions
diff --git a/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.common/src/org/eclipse/papyrus/infra/gmfdiag/common/helper/IdentityAnchorHelper.java b/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.common/src/org/eclipse/papyrus/infra/gmfdiag/common/helper/IdentityAnchorHelper.java
new file mode 100644
index 00000000000..a273f738a3e
--- /dev/null
+++ b/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.common/src/org/eclipse/papyrus/infra/gmfdiag/common/helper/IdentityAnchorHelper.java
@@ -0,0 +1,100 @@
+/*****************************************************************************
+ * Copyright (c) 2014 CEA LIST.
+ *
+ *    
+ * 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:
+ *  Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
+ *
+ *****************************************************************************/
+package org.eclipse.papyrus.infra.gmfdiag.common.helper;
+
+import org.eclipse.gmf.runtime.notation.IdentityAnchor;
+
+/**
+ * 
+ * Helper used for identity anchor
+ * 
+ */
+public class IdentityAnchorHelper {
+
+	/**
+	 * the char starting an id of {@link IdentityAnchor}
+	 */
+	public static final char START_ID = '(';
+
+	/**
+	 * the char ending an id of {@link IdentityAnchor}
+	 */
+
+	public static final char END_ID = ')';
+
+	/**
+	 * the char separating percentage in ids of {@link IdentityAnchor}
+	 */
+	public static final char X_Y_SEPARATOR = ',';
+
+	/**
+	 * the char separating percentage as string in ids of {@link IdentityAnchor}
+	 */
+	public static final String X_Y_SEPARATOR_AS_STRING = new String(new char[]{ X_Y_SEPARATOR });
+
+	/**
+	 * 
+	 * Constructor.
+	 * 
+	 */
+	private IdentityAnchorHelper() {
+		//to prevent instanciation
+	}
+
+	/**
+	 * 
+	 * @param anchor
+	 *        an anchor
+	 * @return
+	 *         the value of x percentage
+	 */
+	public static final double getXPercentage(final IdentityAnchor anchor) {
+		String id = anchor.getId();
+		id = id.substring(1, id.indexOf(X_Y_SEPARATOR_AS_STRING));
+		return Double.parseDouble(id);
+	}
+
+	/**
+	 * 
+	 * @param anchor
+	 *        an anchor
+	 * @return
+	 *         the value of y percentage
+	 */
+	public static final double getYPercentage(final IdentityAnchor anchor) {
+		String id = anchor.getId();
+		id = id.substring(id.indexOf(X_Y_SEPARATOR_AS_STRING) + 1, id.length() - 1);
+		return Double.parseDouble(id);
+	}
+
+
+	/**
+	 * 
+	 * @param percentageOnX
+	 *        the percentage on x
+	 * @param percentageOnY
+	 *        the percentage on y
+	 * @return
+	 *         the string representing the new id for an anchor
+	 */
+	public static final String createNewAnchorIdValue(final double percentageOnX, final double percentageOnY) {
+		final StringBuffer buffer = new StringBuffer();
+		buffer.append(START_ID);
+		buffer.append(Double.toString(percentageOnX));
+		buffer.append(X_Y_SEPARATOR_AS_STRING);
+		buffer.append(Double.toString(percentageOnY));
+		buffer.append(END_ID);
+		return buffer.toString();
+	}
+}