/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

package com.nokia.sdt.test.componentLibrary;

import com.nokia.sdt.component.property.ICompoundPropertyValueConverter;

import org.eclipse.emf.ecore.EObject;

import org.eclipse.ui.views.properties.IPropertySource;

public class SquareValueConverter implements ICompoundPropertyValueConverter {

	public Object getEditableValue(EObject object, IPropertySource propertyValue) {

		int left = intProperty(propertyValue, "leftSide");

		// this is just a test, there would normally be no reason

		// to store all the sides

		int area = left*left;

		return Integer.valueOf((area));

	}

	private int intProperty(IPropertySource ps, Object id) {

		int value = 0;

		try {

			Object v = ps.getPropertyValue(id);

			if (v != null) {

				value = Integer.parseInt(v.toString());

			}

		}

		catch (NumberFormatException x) {

		}

		return value;

	}

	public void applyEditableValue(EObject object, Object editableValue,

			IPropertySource propertySource) {

		if (editableValue instanceof Number) {

			double area = ((Number)editableValue).doubleValue();

			double side = Math.sqrt(area);

			String value = Integer.toString((int)side);

			propertySource.setPropertyValue("leftSide", value);

			propertySource.setPropertyValue("topSide", value);

			propertySource.setPropertyValue("rightSide", value);

			propertySource.setPropertyValue("bottomSide", value);

		}

		else {

			throw new IllegalArgumentException();

		}

	}

}