Added the method "getAbsoluteConnectorBounds"

refs 352

org.fortiss.tooling.base.ui/trunk/src/org/fortiss/tooling/base/ui/utils/EllipseLayoutUtils.java

@@ -20,6 +20,7 @@ package org.fortiss.tooling.base.ui.utils;
 import org.eclipse.draw2d.PositionConstants;
 import org.eclipse.draw2d.geometry.Dimension;
 import org.eclipse.draw2d.geometry.Point;
+import org.eclipse.draw2d.geometry.Rectangle;
 import org.fortiss.tooling.base.layout.DefaultLayoutConstants;
 import org.fortiss.tooling.base.model.layout.ILayoutedModelElement;
 
@@ -123,6 +124,36 @@ public final class EllipseLayoutUtils {
 		return newSize;
 	}
 
+	/** Returns the bounds rectangle of the connector given its parent bounds. */
+	public static Rectangle getAbsoluteConnectorBounds(
+			ILayoutedModelElement connector, ILayoutedModelElement parent) {
+
+		Rectangle result = new Rectangle(0, 0,
+				DefaultLayoutConstants.DEFAULT_CONNECTOR_SIZE,
+				DefaultLayoutConstants.DEFAULT_CONNECTOR_SIZE);
+
+		final double angle = LayoutDataUtils
+				.getConnectorAngleAsDouble(connector);
+
+		org.fortiss.tooling.base.model.layout.Dimension parentSize = LayoutDataUtils
+				.getNodeSize(parent);
+
+		Dimension parentDim = new Dimension(parentSize.getWidth(),
+				parentSize.getHeight());
+		final Point position = calculateEllipseBorderPoint(angle, parentDim,
+				DefaultLayoutConstants.DEFAULT_CONNECTOR_SIZE / 2).translate(
+				-DefaultLayoutConstants.DEFAULT_CONNECTOR_SIZE / 2,
+				-DefaultLayoutConstants.DEFAULT_CONNECTOR_SIZE / 2);
+
+		org.fortiss.tooling.base.model.layout.Point parentPos = LayoutDataUtils
+				.getNodePosition(parent);
+
+		result.x = position.x + parentPos.getX();
+		result.y = position.y + parentPos.getY();
+
+		return result;
+	}
+
 	/**
 	 * Class for storing polar coordinates.
 	 *