/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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 Lesser General Public License for more details.
*
* Copyright (c) 2001 - 2009 Object Refinery Ltd, Pentaho Corporation and Contributors. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.demo.ancient.demo.cards;
import java.io.Serializable;
import org.pentaho.reporting.engine.classic.core.Band;
import org.pentaho.reporting.engine.classic.core.Element;
import org.pentaho.reporting.engine.classic.core.event.ReportEvent;
import org.pentaho.reporting.engine.classic.core.function.AbstractFunction;
/**
* The SelectCardFunction defines the visiblity of the card bands depending on the current card type.
* <p/>
* Valid property names are: <ul> <li>Account <li>Admin <li>User <li>Prepaid <li>Free <li>Empty </ul>
*
* @author Thomas Morgner.
*/
public class SelectCardFunction extends AbstractFunction implements Serializable
{
private String baseCard;
private String field;
private String account;
private String admin;
private String user;
private String prepaid;
private String free;
private String empty;
/**
* Default constructor.
*/
public SelectCardFunction()
{
}
/**
* Hides all bands, which are invalid for the current card type. A band declares its validity by having the same
* element name as the card type name.
*
* @param band the band that should be evaluated
*/
private void selectBand(final Band band)
{
CardType type = (CardType) getDataRow().get(getField());
if (type == null)
{
type = CardType.EMPTY;
}
final String bandName = getBandForCardType(type);
// if the special type empty is active, then everything will be hidden ...
if (type == CardType.EMPTY)
{
band.setVisible(false);
}
else
{
band.setVisible(true);
final Element[] elements = band.getElementArray();
for (int i = 0; i < elements.length; i++)
{
if (elements[i] instanceof Band)
{
final Element e = elements[i];
e.setVisible(e.getName().equals(bandName));
}
}
}
}
/**
* Receives notification that a row of data is being processed.
*
* @param event the event.
*/
public void itemsAdvanced(final ReportEvent event)
{
final Element[] elements = event.getReport().getItemBand().getElementArray();
final String rootName = getBaseCard();
// the itemband contains several cards, every card is contained in a single band.
for (int i = 0; i < elements.length; i++)
{
if (elements[i] instanceof Band && elements[i].getName().equals(rootName))
{
selectBand((Band) elements[i]);
}
}
}
/**
* Return the current expression value. <P> The value depends (obviously) on the expression implementation.
*
* @return the value of the function.
*/
public Object getValue()
{
return null;
}
public String getBaseCard()
{
return baseCard;
}
public void setBaseCard(String baseCard)
{
this.baseCard = baseCard;
}
public String getField()
{
return field;
}
public void setField(String field)
{
this.field = field;
}
public String getAccount()
{
return account;
}
public void setAccount(String account)
{
this.account = account;
}
public String getAdmin()
{
return admin;
}
public void setAdmin(String admin)
{
this.admin = admin;
}
public String getUser()
{
return user;
}
public void setUser(String user)
{
this.user = user;
}
public String getPrepaid()
{
return prepaid;
}
public void setPrepaid(String prepaid)
{
this.prepaid = prepaid;
}
public String getFree()
{
return free;
}
public void setFree(String free)
{
this.free = free;
}
public String getEmpty()
{
return empty;
}
public void setEmpty(String empty)
{
this.empty = empty;
}
protected String getBandForCardType(CardType ct)
{
if (CardType.ACCOUNT == ct)
{
return getAccount();
}
if (CardType.ADMIN == ct)
{
return getAdmin();
}
if (CardType.FREE == ct)
{
return getFree();
}
if (CardType.PREPAID == ct)
{
return getPrepaid();
}
if (CardType.USER == ct)
{
return getUser();
}
return getFree();
}
}