How shrink a frame when the bottom frames inside are blank.? - jasper-reports

Question

So im trying shrink the right frame when the last two inside frames containing the
text fields(red boxes) are blank. The left and right main frames are also inside a frame. But even if only have 4 rows i always get the unused space in the report.
<detail>
<band height="11" splitType="Stretch">
<property name="local_mesure_unitheight" value="pixel"/>
<property name="com.jaspersoft.studio.unit.height" value="px"/>
<printWhenExpression><![CDATA[$V{REPORT_COUNT}>1]]></printWhenExpression>
</band>
<band height="71" splitType="Stretch">
<property name="local_mesure_unitheight" value="pixel"/>
<property name="com.jaspersoft.studio.unit.height" value="px"/>
<frame>
<reportElement positionType="Float" stretchType="RelativeToTallestObject" x="0" y="0" width="554" height="71" isRemoveLineWhenBlank="true" uuid="603f6666-1471-4d16-b0aa-bde352f18b8e">
<property name="local_mesure_unitheight" value="pixel"/>
<property name="com.jaspersoft.studio.unit.height" value="px"/>
</reportElement>
<frame>
<reportElement style="Default" stretchType="RelativeToTallestObject" x="0" y="0" width="301" height="50" isRemoveLineWhenBlank="true" uuid="a12bdb49-abd3-4ecf-83db-033e5846174d"/>
<frame>
<reportElement positionType="Float" x="0" y="20" width="300" height="10" isRemoveLineWhenBlank="true" uuid="ec17f3b3-e6e1-4f57-89e1-3499e4aa63cb">
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<printWhenExpression><![CDATA[!(EXACT(continitions]]></printWhenExpression>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="80" height="10" uuid="96082d63-b65e-4461-951d-6f6532ca9fe0">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA["Morada"]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement stretchType="RelativeToTallestObject" x="58" y="0" width="218" height="10" isRemoveLineWhenBlank="true" uuid="227f2a1f-3fc6-4fbf-a680-6d4ec4bbf86b"/>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[(condditions]]></textFieldExpression>
</textField>
</frame>
<frame>
<reportElement positionType="Float" x="0" y="30" width="300" height="10" isRemoveLineWhenBlank="true" uuid="115c7def-a074-4164-8738-649cecaa095a">
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<printWhenExpression><![CDATA[conditions]]></printWhenExpression>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="80" height="10" uuid="d46cb243-e8e7-4775-9abb-c8600e44f884">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA["field_label"]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement key="" x="58" y="0" width="218" height="10" isRemoveLineWhenBlank="true" uuid="c9f0f6dc-9fc3-49bd-ac4c-7de41ac07633"/>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[conditions]]></textFieldExpression>
</textField>
</frame>
<frame>
<reportElement positionType="Float" x="0" y="10" width="300" height="10" isRemoveLineWhenBlank="true" uuid="016e4775-e417-4f5c-a4de-b0be970e9d3a">
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="80" height="10" uuid="e4e78c67-a0c0-4d01-9942-3429ce402bc5">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$(field)]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="58" y="0" width="218" height="10" isRemoveLineWhenBlank="true" uuid="6b3ac9a8-28a5-413e-9348-e9625f94c235">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field}]]></textFieldExpression>
</textField>
</frame>
<frame>
<reportElement x="0" y="0" width="300" height="10" isRemoveLineWhenBlank="true" uuid="7f7b2531-9450-4a9f-b311-625df5ccae4f">
<property name="com.jaspersoft.studio.layout" value="com.jaspersoft.studio.editor.layout.FreeLayout"/>
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="80" height="10" isRemoveLineWhenBlank="true" uuid="c5a3d310-c74f-4546-97b0-18aa4de9a45a">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA["field"]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="58" y="0" width="218" height="10" isRemoveLineWhenBlank="true" isPrintWhenDetailOverflows="true" uuid="649b1963-912c-4902-8052-1320e32e67ab">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_value}]]></textFieldExpression>
</textField>
</frame>
</frame>
<frame>
<reportElement positionType="Float" stretchType="RelativeToTallestObject" x="301" y="0" width="244" height="70" isRemoveLineWhenBlank="true" isPrintWhenDetailOverflows="true" uuid="c1a1530c-2fca-43d8-a238-f48f3290da29">
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<property name="local_mesure_unitheight" value="pixel"/>
<property name="com.jaspersoft.studio.unit.height" value="px"/>
</reportElement>
<frame>
<reportElement positionType="Float" x="0" y="40" width="244" height="10" isRemoveLineWhenBlank="true" uuid="a96e6e9f-e02f-4e9b-a900-2e55a33df0f3">
<property name="local_mesure_unitheight" value="pixel"/>
<property name="com.jaspersoft.studio.unit.height" value="px"/>
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<printWhenExpression><![CDATA[!($F{condition)))]]></printWhenExpression>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="100" height="10" isRemoveLineWhenBlank="true" isPrintWhenDetailOverflows="true" uuid="edb4759b-cf68-4367-8bc4-7e07364ae3c5">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA["field_label"]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="100" y="0" width="144" height="10" isPrintWhenDetailOverflows="true" uuid="48766f62-03de-407a-a771-6e82e5a4c7ff">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_value}]]></textFieldExpression>
</textField>
</frame>
<frame>
<reportElement positionType="Float" x="0" y="10" width="244" height="10" isRemoveLineWhenBlank="true" uuid="acbe8ba0-af8d-4e1a-93a8-7305a02839a6">
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<printWhenExpression><![CDATA[!($F{condition)))]]></printWhenExpression>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="100" height="10" uuid="d14807d2-aa00-421f-9dab-7cce0adf758a">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_label}]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="100" y="0" width="144" height="10" uuid="63e62a4d-9dca-4dca-85f5-515a4ee18d0b">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{locationscope_value}]]></textFieldExpression>
</textField>
</frame>
<frame>
<reportElement positionType="Float" x="0" y="0" width="244" height="10" isRemoveLineWhenBlank="true" uuid="cc62c22d-cc19-4461-ba53-74f4ba733322">
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<printWhenExpression><![CDATA[!($F{condition})))]]></printWhenExpression>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="100" height="10" uuid="6ce16cc5-2a18-4b3d-a7f7-17979a0a111b">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_label}]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="100" y="0" width="144" height="10" uuid="cc7b895b-2e4f-4118-830f-1bde2e181be6">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{scope_value}]]></textFieldExpression>
</textField>
</frame>
<frame>
<reportElement positionType="Float" x="0" y="30" width="244" height="10" isRemoveLineWhenBlank="true" uuid="4c9ae6a0-6534-4952-be6c-7a18d8351a3c">
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<printWhenExpression><![CDATA[!($F{condition})))]]></printWhenExpression>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="100" height="10" uuid="1c8aedb1-020b-4d7f-aea2-93b0557b2c23">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA["label"]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="100" y="0" width="144" height="10" uuid="c7ae3de9-2f2d-4178-85b2-bf2091766558">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_value}]]></textFieldExpression>
</textField>
</frame>
<frame>
<reportElement positionType="Float" x="0" y="20" width="244" height="10" isRemoveLineWhenBlank="true" uuid="8f058c9f-27d5-4f0f-8eac-32a58fa7ad06">
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<printWhenExpression><![CDATA[!($F{condition})]]></printWhenExpression>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="100" height="10" uuid="ba3f46e3-c823-4815-a74d-7a4caa77828f">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_label}]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="100" y="0" width="144" height="10" uuid="75cce569-0fc5-425b-a9fc-9a42516a4305">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_value}]]></textFieldExpression>
</textField>
</frame>
<frame>
<reportElement positionType="Float" x="0" y="50" width="244" height="10" isRemoveLineWhenBlank="true" uuid="18fad1eb-f42f-4876-be03-40aac2765875">
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
<property name="local_mesure_unity" value="pixel"/>
<property name="com.jaspersoft.studio.unit.y" value="px"/>
<printWhenExpression><![CDATA[!($F{condition}]]></printWhenExpression>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="100" height="10" uuid="2e21f092-a95f-42b1-897e-50af56985554">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_label}]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="100" y="0" width="144" height="10" uuid="a9fe6852-4253-4fb9-a089-d007459655dd">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_value}]]></textFieldExpression>
</textField>
</frame>
<frame>
<reportElement positionType="Float" x="0" y="60" width="244" height="10" isRemoveLineWhenBlank="true" uuid="c102458f-d273-4611-a851-ed8e83adfead">
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
<property name="local_mesure_unity" value="pixel"/>
<property name="com.jaspersoft.studio.unit.y" value="px"/>
<printWhenExpression><![CDATA[!($F{condntion})]]></printWhenExpression>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="100" height="10" uuid="80dcd916-f4c8-434d-a833-e864f64ddae5">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA["field_label"]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="100" y="0" width="144" height="10" uuid="5676615c-3ae5-41c6-8cf1-dbdef5cc3a99">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_value}]]></textFieldExpression>
</textField>
</frame>
</frame>
</frame>
</band>
</detail>

Answer 1

In jasper reports you can not shrink elements, instead you need to stretch them when needed.
In your case this means that your frames in report needs to be at the minimum size you need, then if there is more content in them you stretch it.
For example, your first frame
<frame>
<reportElement positionType="Float" stretchType="RelativeToTallestObject" x="0" y="0" width="554" height="71" isRemoveLineWhenBlank="true" uuid="603f6666-1471-4d16-b0aa-bde352f18b8e">
......
it will always have a minimum height of 71, if it it needs to be smaller (when some components are not displayed) you need to reduce this value to for example 10.
To explain this behavior, I will attach a small example, with a frame (that has a border) that contains 2 static text fields and the second one will display based on a parameter.
<?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="Blank_A4_3" pageWidth="595" pageHeight="842" whenNoDataType="AllSectionsNoDetail" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="53801704-697f-43ac-aed6-9e952be4ab7f">
<property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/>
<parameter name="ShowText2" class="java.lang.Boolean">
<defaultValueExpression><![CDATA[true]]></defaultValueExpression>
</parameter>
<queryString>
<![CDATA[]]>
</queryString>
<title>
<band height="96" splitType="Stretch">
<frame>
<reportElement stretchType="ElementGroupHeight" x="0" y="0" width="545" height="30" uuid="6ca5ba0c-b9c0-4ae9-be7f-e7a372593e94"/>
<box>
<topPen lineWidth="0.25"/>
<leftPen lineWidth="0.25"/>
<bottomPen lineWidth="0.25"/>
<rightPen lineWidth="0.25"/>
</box>
<staticText>
<reportElement x="0" y="0" width="100" height="30" uuid="7291cb69-0d98-4ce2-8031-60b5c6df4ebb"/>
<textElement textAlignment="Center" verticalAlignment="Middle"/>
<text><![CDATA[Static text 1]]></text>
</staticText>
<staticText>
<reportElement x="0" y="30" width="100" height="30" isRemoveLineWhenBlank="true" uuid="7df247c0-2c72-4413-83f5-3d4d3aec258c">
<printWhenExpression><![CDATA[$P{ShowText2}]]></printWhenExpression>
</reportElement>
<textElement textAlignment="Center" verticalAlignment="Middle"/>
<text><![CDATA[Static text 2]]></text>
</staticText>
</frame>
</band>
</title>
</jasperReport>
Output
Not displaying second text field
Displaying second text field
The key concept is that the frame has height="30" which is the not stretched value (minimum value) and instead it gets stretched to height="60" if the second text field is displayed.
Note: I'm using stretchType="ElementGroupHeight" since stretchType="RelativeToTallestObject" is deprecated.