Help needed in using Custom Element Property

[skulaz]

Hi Guys,
I'm trying to force the size of a single text element of my jasper print using the Custom Element Property
"net.sf.jasperreports.default.font.size"


But the result never changes.
I've seen, debugging the source code 
that in the class JRProperties 
there is this method called by JRBaseFiller at line 400:

..............
    public static List getProperties(JRPropertiesMap propertiesMap, String prefix)
    {
        int prefixLength = prefix.length();
        List values = new ArrayList();
        if (propertiesMap != null)
        {
            String[] propertyNames = propertiesMap.getPropertyNames();
            for (int i = 0; i < propertyNames.length; i++)
            {
                String name = propertyNames;
                if (name.startsWith(prefix))
                {
                    String suffix = name.substring(prefixLength);
                    String value = propertiesMap.getProperty(name);
                    values.add(new PropertySuffix(name, suffix, value));
                }
            }
        }
        return values;
    }
.........

debugging the code line in red i see that it expects in the name of my custom property
a string like this net.sf.jasperreports.export.
So I added this string in the name of my attribute changing the attribute name in "net.sf.jasperreports.export.net.sf.jasperreports.default.font.size"
and i successfully entered that if  construct, but the output result remains the same: the font for the elements is the default (10px).
Do you have any suggestion about this problem?
I'm using jasper 3.0.0
Thanks in advance.
Bye

[lucianc]

skulaz
Wrote:

I'm trying to force the size of a single text element of my jasper print using the Custom Element Property "net.sf.jasperreports.default.font.size"

This property can only be set globally (per system), as stated in the configuration reference, and will not have any effect when set at report element level.

You should use the fontSize text attribute instead.

Regards,

Lucian

[skulaz]

Thank you for your reply, but i need to determine the font size at runtime, when filling the report, using an expression.

Any suggestion?

 

[lucianc]

As far as I know, that's not truly possible.

The only feature that's close to this is conditional styles, but that would only allow you to switch between a static (defined at design time) list of font sizes.

Regards,

Lucian

[skulaz]

Thank you Lucian for your reply.

It means that i could not set  different  font size for each row of my report at runtime?

Regards

Nicola

[lucianc]

You can set different font sizes for different rows, but the font size cannont be fully dynamic.  What you can do is to define a style that contains conditional styles with different font sizes (see below).

What you cannot do is to use an expression as font size.

Regards,

Lucian

Code:

<style>  <conditionalStyle>    <conditionExpression>$F{field}.equals("big")</conditionExpression>    <style fontSize="20"/>  </conditionalStyle>  <conditionalStyle>    <conditionExpression>$F{field}.equals("medium")</conditionExpression>    <style fontSize="14"/>  </conditionalStyle>  <conditionalStyle>    <conditionExpression>$F{field}.equals("small")</conditionExpression>    <style fontSize="20"/>  </conditionalStyle></style>