/******************************************************************************
 * Product: Adempiere ERP & CRM Smart Business Solution                        *
 * Copyright (C) 1999-2006 ComPiere, Inc. All Rights Reserved.                *
 * This program is free software; you can redistribute it and/or modify it    *
 * under the terms version 2 of the GNU General Public License as published   *
 * by the Free Software Foundation. This program is distributed in the hope   *
 * that it will be useful, but WITHOUT ANY WARRANTY; without even the implied *
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.           *
 * See the GNU General Public License for more details.                       *
 * You should have received a copy of the GNU General Public License along    *
 * with this program; if not, write to the Free Software Foundation, Inc.,    *
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.                     *
 * For the text or an alternative of this public license, you may reach us    *
 * ComPiere, Inc., 2620 Augustine Dr. #245, Santa Clara, CA 95054, USA        *
 * or via info@compiere.org or http://www.compiere.org/license.html           *
 *****************************************************************************/
package org.compiere.model;

import java.math.*;
import java.util.*;
import org.compiere.util.*;


/**
 *	Project Callouts
 *	
 *  @author Jorg Janke
 *  @version $Id: CalloutProject.java,v 1.3 2006/07/30 00:51:04 jjanke Exp $
 */
public class CalloutProject extends CalloutEngine
{
	/**
	 *	Project Planned - Price + Qty.
	 *		- called from PlannedPrice, PlannedQty
	 *		- calculates PlannedAmt (same as Trigger)
	 *  @param ctx context
	 *  @param WindowNo current Window No
	 *  @param mTab Grid Tab
	 *  @param mField Grid Field
	 *  @param value New Value
	 *  @return null or error message
	 */
	public  String planned (Properties ctx, int WindowNo, GridTab mTab, GridField mField, Object value)
	{
		if (isCalloutActive() || value == null)
			return "";
		setCalloutActive(true);

		BigDecimal PlannedQty, PlannedPrice;
		int StdPrecision = Env.getContextAsInt(ctx, WindowNo, "StdPrecision");


		//	get values
		PlannedQty = (BigDecimal)mTab.getValue("PlannedQty");
		if (PlannedQty == null)
			PlannedQty = Env.ONE;
		PlannedPrice = ((BigDecimal)mTab.getValue("PlannedPrice"));
		if (PlannedPrice == null)
			PlannedPrice = Env.ZERO;
		//
		BigDecimal PlannedAmt = PlannedQty.multiply(PlannedPrice);
		if (PlannedAmt.scale() > StdPrecision)
			PlannedAmt = PlannedAmt.setScale(StdPrecision, BigDecimal.ROUND_HALF_UP);
		//
		log.fine("PlannedQty=" + PlannedQty + " * PlannedPrice=" + PlannedPrice + " -> PlannedAmt=" + PlannedAmt + " (Precision=" + StdPrecision+ ")");
		mTab.setValue("PlannedAmt", PlannedAmt);
		setCalloutActive(false);
		return "";
	}	//	planned

}	//	CalloutProject
