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/*******************************************************************************
 * Copyright (c) 2007 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jface.fieldassist;

import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Control;

/**
 * This interface is used by a {@link ContentProposalAdapter} in order to
 * retrieve and set the selection range in a control.
 * 
 * @since 3.4
 */
public interface IControlContentAdapter2 {
	/**
	 * Get the current selection range in the control. The x coordinate of the
	 * returned point is the position of the first selected character and the y
	 * coordinate of the returned point is the position of the last selected
	 * character. The positions are specified as a zero-based index into the
	 * string. Valid ranges are from 0 to N, where N is the size of the contents
	 * string. A value of N indicates that the last character is in the
	 * selection.
	 * 
	 * @param control
	 *            the control whose position is to be retrieved.
	 * @return a point representing the selection start and end
	 */
	public Point getSelection(Control control);

	/**
	 * Set the current selection range in the control. The x coordinate of the
	 * provided point is the position of the first selected character and the y
	 * coordinate of the point is the position of the last selected character.
	 * The positions are specified as a zero-based index into the string. Valid
	 * ranges are from 0 to N, where N is the size of the contents string. A
	 * value of N indicates that the last character is in the selection. If the
	 * x and y coordinates are the same, then there is no selection.
	 * 
	 * @param control
	 *            the control whose position is to be retrieved.
	 * @param range
	 *            a point representing the selection start and end
	 */
	public void setSelection(Control control, Point range);

}