116 lines
3.9 KiB
Java
116 lines
3.9 KiB
Java
package net.sf.jasperreports.engine.util;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Set;
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import net.sf.jasperreports.crosstabs.JRCellContents;
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import net.sf.jasperreports.crosstabs.JRCrosstab;
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import net.sf.jasperreports.crosstabs.JRCrosstabCell;
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import net.sf.jasperreports.crosstabs.JRCrosstabColumnGroup;
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import net.sf.jasperreports.crosstabs.JRCrosstabRowGroup;
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import net.sf.jasperreports.crosstabs.design.JRDesignCrosstab;
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import net.sf.jasperreports.engine.JRBand;
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import net.sf.jasperreports.engine.JRChild;
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import net.sf.jasperreports.engine.JRElementGroup;
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import net.sf.jasperreports.engine.JRFrame;
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import net.sf.jasperreports.engine.JRGroup;
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import net.sf.jasperreports.engine.JRReport;
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import net.sf.jasperreports.engine.JRVisitor;
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public class JRElementsVisitor extends JRDelegationVisitor {
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public static void visitReport(JRReport report, JRVisitor visitor) {
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JRElementsVisitor reportVisitor = new JRElementsVisitor(visitor);
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reportVisitor.visitReport(report);
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}
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public JRElementsVisitor(JRVisitor visitor) {
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super(visitor);
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}
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public void visitReport(JRReport report) {
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visitBand(report.getBackground());
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visitBand(report.getTitle());
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visitBand(report.getPageHeader());
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visitBand(report.getColumnHeader());
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visitBand(report.getDetail());
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visitBand(report.getColumnFooter());
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visitBand(report.getPageFooter());
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visitBand(report.getLastPageFooter());
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visitBand(report.getSummary());
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visitBand(report.getNoData());
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JRGroup[] groups = report.getGroups();
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if (groups != null)
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for (int i = 0; i < groups.length; i++) {
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JRGroup group = groups[i];
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visitBand(group.getGroupHeader());
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visitBand(group.getGroupFooter());
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}
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}
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protected void visitBand(JRBand band) {
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if (band != null)
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band.visit(this);
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}
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protected void visitElements(List elements) {
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if (elements != null)
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for (Iterator it = elements.iterator(); it.hasNext(); ) {
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JRChild child = it.next();
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child.visit(this);
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}
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}
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public void visitElementGroup(JRElementGroup elementGroup) {
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super.visitElementGroup(elementGroup);
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visitElements(elementGroup.getChildren());
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}
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public void visitFrame(JRFrame frame) {
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super.visitFrame(frame);
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visitElements(frame.getChildren());
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}
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public void visitCrosstab(JRCrosstab crosstab) {
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super.visitCrosstab(crosstab);
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visitCrosstabCell(crosstab.getWhenNoDataCell());
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visitCrosstabCell(crosstab.getHeaderCell());
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JRCrosstabRowGroup[] rowGroups = crosstab.getRowGroups();
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for (int i = 0; i < rowGroups.length; i++) {
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JRCrosstabRowGroup rowGroup = rowGroups[i];
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visitCrosstabCell(rowGroup.getHeader());
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visitCrosstabCell(rowGroup.getTotalHeader());
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}
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JRCrosstabColumnGroup[] columnGroups = crosstab.getColumnGroups();
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for (int j = 0; j < columnGroups.length; j++) {
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JRCrosstabColumnGroup columnGroup = columnGroups[j];
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visitCrosstabCell(columnGroup.getHeader());
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visitCrosstabCell(columnGroup.getTotalHeader());
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}
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if (crosstab instanceof JRDesignCrosstab) {
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List cells = ((JRDesignCrosstab)crosstab).getCellsList();
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for (Iterator it = cells.iterator(); it.hasNext(); ) {
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JRCrosstabCell cell = it.next();
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visitCrosstabCell(cell.getContents());
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}
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} else {
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JRCrosstabCell[][] cells = crosstab.getCells();
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if (cells != null) {
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Set cellContents = new HashSet();
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for (int k = 0; k < cells.length; k++) {
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for (int m = 0; m < (cells[k]).length; m++) {
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JRCrosstabCell cell = cells[k][m];
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if (cell != null && cell.getContents() != null && cellContents.add(cell.getContents()))
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visitCrosstabCell(cell.getContents());
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}
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}
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}
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}
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}
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protected void visitCrosstabCell(JRCellContents cell) {
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if (cell != null)
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visitElements(cell.getChildren());
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}
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}
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