Bug 104986 Backgound image uses an absolute path
Currently Chart uses an absolute path to indicate a backgournd image, that may cause the design unusable on other environments. Expected the background image can be definded in multiple ways like in report designer. e.g. URI(absolute path), File(relative path), Embedded Image(Encoded Image Data).
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/model/attribute/AttributeFactory.java
/***********************************************************************
 * Copyright (c) 2004 Actuate Corporation.
 * 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:
 * Actuate Corporation - initial API and implementation
 ***********************************************************************/
package org.eclipse.birt.chart.model.attribute;
import org.eclipse.emf.ecore.EFactory;
/**
 * <!-- begin-user-doc --> The <b>Factory </b> for the model. It provides a create method for each non-abstract class of
 * the model. <!-- end-user-doc -->
 * @see org.eclipse.birt.chart.model.attribute.AttributePackage
 * @generated
 */
public interface AttributeFactory extends EFactory
{
	/**
	 * The singleton instance of the factory.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	AttributeFactory eINSTANCE = new org.eclipse.birt.chart.model.attribute.impl.AttributeFactoryImpl( );
	/**