Ram H
Ram H

Reputation: 39

Is it possible to set the scaleImage property with dynamic expression?

The scaleImage="RetainShape" works correctly for a larger image but for a smaller image, it enlarges(stretches, hampering the image quality) it as per either by width or height of the report element .

<image scaleImage="RetainShape" hAlign="Center" vAlign="Middle">
    <reportElement x="10" y="10" width="534" height="300"
    <imageExpression><![CDATA[$P{originalImage}]]></imageExpression>
</image>

Can we set the scaleImage property Dynamically? If (image is large) scaleImage="RetainShape" else scaleImage="Clip"

Upvotes: 1

Views: 310

Answers (1)

Ram H
Ram H

Reputation: 39

For those who are searching answers for similar scenarios... So as Alex suggested, I created a conditional style and applied it to the image tag

<style name="scaleImageStyle" hImageAlign="Center" vImageAlign="Middle">
    <conditionalStyle>
        <conditionExpression><![CDATA[$P{originalImage}.getHeight(null) <=300]]></conditionExpression>
        <style scaleImage="Clip"/>
    </conditionalStyle>
    <conditionalStyle>
        <conditionExpression><![CDATA[$P{originalImage}.getHeight(null) >300]]></conditionExpression>
        <style scaleImage="RetainShape"/>
    </conditionalStyle>
</style>

<image hAlign="Center" vAlign="Middle">
            <reportElement style="scaleImageStyle" isPrintRepeatedValues="false" x="0" y="0" width="535" height="300" uuid="d813ec39-6f47-4361-9d82-c312924c2ba0"/>
            <imageExpression><![CDATA[$P{originalImage}]]></imageExpression>
        </image>

Upvotes: 1

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