1 files changed, 44 insertions, 0 deletions

diff --git a/uml/org.eclipse.papyrus.diagram.common/src/org/eclipse/papyrus/diagram/common/draw2d/SplitEllipseLayout.java b/uml/org.eclipse.papyrus.diagram.common/src/org/eclipse/papyrus/diagram/common/draw2d/SplitEllipseLayout.java
new file mode 100644
index 00000000000..f32480ba609
--- /dev/null
+++ b/uml/org.eclipse.papyrus.diagram.common/src/org/eclipse/papyrus/diagram/common/draw2d/SplitEllipseLayout.java
@@ -0,0 +1,44 @@
+/*******************************************************************************
+ * Copyright (c) 2008 Conselleria de Infraestructuras y Transporte,
+ * Generalitat de la Comunitat Valenciana .
+ * 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: Francisco Javier Cano Muñoz (Prodevelop) - initial API implementation
+ *
+ ******************************************************************************/
+package org.eclipse.papyrus.diagram.common.draw2d;
+
+import org.eclipse.draw2d.BorderLayout;
+import org.eclipse.draw2d.IFigure;
+import org.eclipse.draw2d.MarginBorder;
+import org.eclipse.draw2d.geometry.Rectangle;
+
+public class SplitEllipseLayout extends BorderLayout {
+
+	private int myXMargin;
+
+	private int myYMargin;
+
+	@Override
+	public void layout(IFigure container) {
+		Rectangle r = container.getBounds();
+		double a = r.width / 2;
+		double b = r.height / 2;
+		double sin45 = Math.sqrt(2) / 2;
+		double cos45 = sin45;
+		double diagx = a * sin45;
+		double diagy = b * cos45;
+		int newxmargin = (int) (a - diagx);
+		int newymargin = (int) (b - diagy);
+		if (newxmargin != myXMargin || newymargin != myYMargin) {
+			myXMargin = newxmargin;
+			myYMargin = newymargin;
+			container.setBorder(new MarginBorder(myYMargin, myXMargin, myYMargin, myXMargin));
+		}
+		super.layout(container);
+	}
+
+}