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160 | /**
* DynamicReports - Free Java reporting library for creating reports dynamically
*
* Copyright (C) 2010 - 2018 Ricardo Mariaca
* http://www.dynamicreports.org
*
* This file is part of DynamicReports.
*
* DynamicReports 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.
*
* DynamicReports 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 DynamicReports. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.dynamicreports.examples.miscellaneous;
import static net.sf.dynamicreports.report.builder.DynamicReports.*;
import java.math.BigDecimal;
import net.sf.dynamicreports.examples.Templates;
import net.sf.dynamicreports.report.base.expression.AbstractSimpleExpression;
import net.sf.dynamicreports.report.builder.column.TextColumnBuilder;
import net.sf.dynamicreports.report.builder.component.TextFieldBuilder;
import net.sf.dynamicreports.report.builder.component.VerticalListBuilder;
import net.sf.dynamicreports.report.builder.group.ColumnGroupBuilder;
import net.sf.dynamicreports.report.constant.Constants;
import net.sf.dynamicreports.report.constant.GroupHeaderLayout;
import net.sf.dynamicreports.report.datasource.DRDataSource;
import net.sf.dynamicreports.report.definition.ReportParameters;
import net.sf.dynamicreports.report.exception.DRException;
import net.sf.jasperreports.engine.JRDataSource;
/**
* @author Ricardo Mariaca (r.mariaca@dynamicreports.org)
*/
public class PrintWhenExpressionReport {
public PrintWhenExpressionReport() {
build();
}
private void build() {
TextColumnBuilder<String> itemColumn = col.column("Item", "item", type.stringType());
ColumnGroupBuilder itemGroup = grp.group("itemGroup", itemColumn)
.setHeaderLayout(GroupHeaderLayout.EMPTY);
TextFieldBuilder<String> groupHeader = cmp.text(new GroupHeaderExpression())
.setStyle(Templates.groupStyle)
.setPrintWhenExpression(new PrintGroupHeaderExpression())
.removeLineWhenBlank();
VerticalListBuilder oddPageHeader = cmp.verticalList()
.add(
cmp.text("Odd page header").setStyle(Templates.bold12CenteredStyle),
cmp.line())
.setPrintWhenExpression(new PrintInOddPageExpression())
.removeLineWhenBlank();
VerticalListBuilder evenPageHeader = cmp.verticalList()
.add(
cmp.line(),
cmp.text("Even page header").setStyle(Templates.bold12CenteredStyle),
cmp.line())
.setPrintWhenExpression(new PrintInEvenPageExpression())
.removeLineWhenBlank();
try {
report()
.setTemplate(Templates.reportTemplate)
.setPageColumnsPerPage(2)
.setPageColumnSpace(5)
.columns(
itemColumn,
col.column("Quantity", "quantity", type.integerType()),
col.column("Unit price", "unitprice", type.bigDecimalType()))
.groupBy(itemGroup)
.title(Templates.createTitleComponent("PrintWhenExpression"))
.detailHeader(
cmp.columnBreak().setPrintWhenExpression(new PrintGroupHeaderColumnBreakExpression()),
groupHeader)
.pageHeader(
oddPageHeader, evenPageHeader, cmp.verticalGap(10))
.pageFooter(Templates.footerComponent)
.setDataSource(createDataSource())
.show();
} catch (DRException e) {
e.printStackTrace();
}
}
private JRDataSource createDataSource() {
DRDataSource dataSource = new DRDataSource("item", "quantity", "unitprice");
for (int i = 0; i < 50; i++) {
dataSource.add("DVD", (int) (Math.random() * 10) + 1, new BigDecimal(Math.random() * 100 + 1));
}
for (int i = 0; i < 50; i++) {
dataSource.add("Book", (int) (Math.random() * 10) + 1, new BigDecimal(Math.random() * 100 + 1));
}
return dataSource;
}
public class GroupHeaderExpression extends AbstractSimpleExpression<String> {
private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;
@Override
public String evaluate(ReportParameters reportParameters) {
return reportParameters.getValue("item");
}
}
public class PrintGroupHeaderExpression extends AbstractSimpleExpression<Boolean> {
private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;
@Override
public Boolean evaluate(ReportParameters reportParameters) {
return reportParameters.getColumnRowNumber() == 1 || reportParameters.getGroupCount("itemGroup") == 1;
}
}
public class PrintGroupHeaderColumnBreakExpression extends AbstractSimpleExpression<Boolean> {
private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;
@Override
public Boolean evaluate(ReportParameters reportParameters) {
return reportParameters.getColumnRowNumber() == 1 && reportParameters.getGroupCount("itemGroup") != 1;
}
}
public class PrintInOddPageExpression extends AbstractSimpleExpression<Boolean> {
private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;
@Override
public Boolean evaluate(ReportParameters reportParameters) {
return reportParameters.getPageNumber().doubleValue() % 2 != 0;
}
}
public class PrintInEvenPageExpression extends AbstractSimpleExpression<Boolean> {
private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;
@Override
public Boolean evaluate(ReportParameters reportParameters) {
return reportParameters.getPageNumber().doubleValue() % 2 == 0;
}
}
public static void main(String[] args) {
new PrintWhenExpressionReport();
}
}
|
