Add Precision Version of getDistanceSquared

PrecisionPoint provides now its own getDistanceSquared which uses the
precise coordinates to reduce rounding errors in the distance
calculations.

org.eclipse.draw2d/src/org/eclipse/draw2d/geometry/PrecisionPoint.java

@@ -112,6 +112,23 @@ public int getDistanceOrthogonal(Point p) {
 		return (int) (Math.abs(this.preciseX() - p.preciseX()) + Math.abs(this.preciseY() - p.preciseY()));
 	}
 
+	/**
+	 * provide a precision version of
+	 * org.eclipse.draw2d.geometry.Point#getDistanceSquared(org.eclipse.draw2d.geometry.Point)
+	 *
+	 * @since 3.19
+	 */
+	@Override
+	public int getDistanceSquared(Point p) {
+		double deltaX = p.preciseX() - this.preciseX();
+		double deltaY = p.preciseX() - this.preciseX();
+		long result = (long) (deltaX * deltaX + deltaY * deltaY);
+		if (result > Integer.MAX_VALUE) {
+			return Integer.MAX_VALUE;
+		}
+		return (int) result;
+	}
+
 	/**
 	 * Returns a precise copy of this.
 	 *