Dynamically change width of element - jasper-reports

Question

I need to create table of contents in JasperReports.
I have already achieved this, but cant do anything with lines in TOC.
Currently they have a static width:
Chapter 1 ........ 2
Long Chapter Name ........ 3
End ........ 4
I want to stretch dotted lines to the width of the chapter name. Like here:
Chapter 1 ................. 2
Long Chapter Name ......... 3
End ....................... 4
How can I do this? Is there some 'padding' functionality in JR or should I create scriptlet for this task ? Thanks!
P.S. I'm using jasper reports 5.0.1

Answer 1

This wouldn't be a very neat way but I would draw many dots in your text box and hide the end using a frame to allow writing the number of the page.
<?xml version="1.0" encoding="UTF-8"?>
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="table of content" language="groovy" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="df5894b6-0e62-4082-bdb8-3f0a1b26a2f4">
<property name="ireport.zoom" value="1.0"/>
<property name="ireport.x" value="0"/>
<property name="ireport.y" value="0"/>
<queryString>
<![CDATA[SELECT
1 AS page,
'test' AS title
FROM
"account" account
Union
SELECT
4 AS page,
'chapter 2' AS title
FROM
"account" account
Union
SELECT
20 AS page,
'chapter 3: hello' AS title
FROM
"account" account]]>
</queryString>
<field name="page" class="java.lang.Integer"/>
<field name="title" class="java.lang.String"/>
<background>
<band splitType="Stretch"/>
</background>
<title>
<band height="20" splitType="Stretch">
<staticText>
<reportElement uuid="2e81fd32-3b8d-4b98-b96d-6409afb8d16f" x="0" y="0" width="555" height="20"/>
<textElement>
<font isBold="true" isStrikeThrough="false"/>
</textElement>
<text><![CDATA[Table of content]]></text>
</staticText>
</band>
</title>
<columnHeader>
<band splitType="Stretch"/>
</columnHeader>
<detail>
<band height="20" splitType="Stretch">
<textField>
<reportElement uuid="c8707508-946a-48ae-ae75-61810003e1db" x="0" y="0" width="555" height="20"/>
<textElement/>
<textFieldExpression><![CDATA[$F{title}+" .............................................................................................................................."]]></textFieldExpression>
</textField>
<frame>
<reportElement uuid="4040d203-6b49-4da2-8bcf-f3d6d48c7fd7" mode="Opaque" x="341" y="0" width="214" height="20"/>
</frame>
<textField>
<reportElement uuid="472f8f95-fdea-4cd9-b3a5-a1b9b66a8c44" mode="Opaque" x="321" y="0" width="20" height="20"/>
<textElement textAlignment="Right"/>
<textFieldExpression><![CDATA[$F{page}]]></textFieldExpression>
</textField>
</band>
</detail>
</jasperReport>