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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2019 TIBCO Software Inc. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see .
*/
package net.sf.jasperreports.crosstabs;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import net.sf.jasperreports.crosstabs.design.JRDesignCrosstab;
import net.sf.jasperreports.engine.ElementsVisitor;
import net.sf.jasperreports.engine.JRVisitor;
import net.sf.jasperreports.engine.util.ElementsVisitorUtils;
import net.sf.jasperreports.engine.util.JRDelegationVisitor;
/**
* Deep crosstab visitor.
*
* @author Lucian Chirita ([email protected])
*/
public class CrosstabDeepVisitor extends JRDelegationVisitor implements ElementsVisitor
{
/**
* Creates a deep crosstab visitor.
*
* @param visitor the elements visitor which is to visit crosstab nested elements
*/
public CrosstabDeepVisitor(JRVisitor visitor)
{
super(visitor);
}
@Override
public boolean visitDeepElements()
{
return true;
}
/**
* Visits all the elements nested into a crosstab.
*
* @param crosstab the crosstab whose elements to visit
*/
public void deepVisitCrosstab(JRCrosstab crosstab)
{
visitCrosstabCell(crosstab.getWhenNoDataCell());
if (crosstab.getTitleCell() != null)
{
visitCrosstabCell(crosstab.getTitleCell().getCellContents());
}
visitCrosstabCell(crosstab.getHeaderCell());
JRCrosstabRowGroup[] rowGroups = crosstab.getRowGroups();
for (int i = 0; i < rowGroups.length; i++)
{
JRCrosstabRowGroup rowGroup = rowGroups[i];
visitCrosstabCell(rowGroup.getHeader());
visitCrosstabCell(rowGroup.getTotalHeader());
}
JRCrosstabColumnGroup[] columnGroups = crosstab.getColumnGroups();
for (int i = 0; i < columnGroups.length; i++)
{
JRCrosstabColumnGroup columnGroup = columnGroups[i];
visitCrosstabCell(columnGroup.getCrosstabHeader());
visitCrosstabCell(columnGroup.getHeader());
visitCrosstabCell(columnGroup.getTotalHeader());
}
if (crosstab instanceof JRDesignCrosstab)
{
List cells = ((JRDesignCrosstab) crosstab).getCellsList();
for (Iterator it = cells.iterator(); it.hasNext();)
{
JRCrosstabCell cell = it.next();
visitCrosstabCell(cell.getContents());
}
}
else
{
JRCrosstabCell[][] cells = crosstab.getCells();
if (cells != null)
{
Set cellContents = new HashSet();
for (int i = 0; i < cells.length; i++)
{
for (int j = 0; j < cells[i].length; j++)
{
JRCrosstabCell cell = cells[i][j];
if (cell != null && cell.getContents() != null
&& cellContents.add(cell.getContents()))
{
visitCrosstabCell(cell.getContents());
}
}
}
}
}
}
protected void visitCrosstabCell(JRCellContents cell)
{
if (cell != null)
{
ElementsVisitorUtils.visitElements(this, cell.getChildren());
}
}
}