Yes, you're right, but this way fit 90% of my needs (It's a Label...)
Otherwise, it's possible to use a CustomConverter to do it, and then
override getConverter on Component. So, it also work on TextField (but i
agree, it's not exactly your use case. ) :
@Override
public IConverter getConverter(Class<?> type) {
return PercentConverter.INSTANCE_2DEC;
}
public class PercentConverter extends AbstractNumberConverter {
public static final PercentConverter INSTANCE = new PercentConverter();
public static final PercentConverter INSTANCE_2DEC = new
PercentConverter() {
public NumberFormat getNumberFormat(Locale locale) {
NumberFormat nf = DecimalFormat.getPercentInstance(locale);
nf.setMinimumFractionDigits(2);
nf.setMaximumFractionDigits(2);
return nf;
};
};
public static final PercentConverter INSTANCE_4DEC = new
PercentConverter() {
public NumberFormat getNumberFormat(Locale locale) {
NumberFormat nf = DecimalFormat.getPercentInstance(locale);
nf.setMinimumFractionDigits(4);
nf.setMaximumFractionDigits(4);
return nf;
};
};
public Object convertToObject(String value, Locale locale) {
if (value == null)
return null;
value = value.trim();
if (value.trim().equals(""))
{
return null;
}
Number n = null;
try {
n = getNumberFormat(locale).parse(value);
} catch (ParseException e) {
throw newConversionException(e.getMessage(), value,
locale).setFormat(
getNumberFormat(locale));
}
return n.floatValue();
}
@Override
protected Class<?> getTargetType() {
return Float.class;
}
@Override
public NumberFormat getNumberFormat(Locale locale) {
return NumberFormat.getPercentInstance(locale);
}
}
2011/9/23 Pranav kacholia <pranav.kacho...@gmail.com>
> Suppose someone wants to call formatlLabel.getModelObject() ...
>
> I don’t see why they would, but hypothetically.
>
> In this case you would get the formatted string. Since the label is merely
> a view, should it be changing the model even by formatting it?
>
>
>
> From: Yves-Marie LAINÉ [via Apache Wicket] [mailto:
> ml-node+s1842946n3837008...@n4.nabble.com]
> Sent: 23 September 2011 19:57
> To: Pranav kacholia
> Subject: Re: DecimalFormatLabel (proposed)
>
>
>
> Hi all,
>
> Personnaly I did it like that (simpler for i18n, i think) :
>
> public class FormatLabel extends Label {
>
> public FormatLabel(String id,final String formatKey, final IModel<?
> extends Serializable> model) {
> super (id);
> setDefaultModel(new AbstractReadOnlyModel<String>() {
> @Override
> public String getObject() {
>
> Serializable o = model.getObject();
>
> if ( o != null) {
> return new StringResourceModel(formatKey,
> FormatLabel.this, model, new Object[]{o}).getObject();
> }
>
> return getString(FormatLabel.this.getId() + ".null");
> }
> });
> }
> }
>
>
> Yves-Marie
>
>
>
> 2011/9/23 Pranav kacholia <[hidden email]>
>
>
> > Perhaps we can keep it as a NumberFormatLabel for greater flexibility
> >
> > import java.text.NumberFormat;
> > import org.apache.wicket.markup.ComponentTag;
> > import org.apache.wicket.markup.MarkupStream;
> > import org.apache.wicket.markup.html.basic.Label;
> > import org.apache.wicket.model.IModel;
> > import org.apache.wicket.model.Model;
> >
> > /**
> > *
> > * @author pkacholia
> > */
> > public class NumberFormatLabel extends Label {
> >
> > final private NumberFormat formatter;
> >
> > public NumberFormatLabel(String id, IModel<? extends Number> model,
> > NumberFormat format) {
> > super(id, model);
> > formatter = format;
> > }
> >
> > public NumberFormatLabel(String id, Number obj, NumberFormat format)
> {
> > this(id, new Model<Number>(obj), format);
> > }
> >
> > public NumberFormatLabel(String id, NumberFormat format) {
> > super(id);
> > formatter = format;
> > }
> >
> > /**
> > * {@inheritDoc}
> > */
> > @Override
> > public void onComponentTagBody(final MarkupStream markupStream, final
> > ComponentTag openTag) {
> > String response;
> > try {
> > response = formatter.format(getDefaultModelObject());
> > } catch (IllegalArgumentException ex) {
> > error(getString("NaN"));
> > response = "";
> > } catch (NullPointerException ex) {
> > error(getString("NullFormatter"));
> > response = "";
> > }
> > replaceComponentTagBody(markupStream, openTag, response);
> > }
> > }
> >
> > --
> > View this message in context:
> >
> http://apache-wicket.1842946.n4.nabble.com/DecimalFormatLabel-proposed-tp3834813p3836001.html
> > Sent from the Users forum mailing list archive at Nabble.com.
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: [hidden email]
> > For additional commands, e-mail: [hidden email]
> >
> >
>
>
>
> --
> Yves-Marie LAINÉ
>
>
>
> _____
>
> If you reply to this email, your message will be added to the discussion
> below:
>
>
> http://apache-wicket.1842946.n4.nabble.com/DecimalFormatLabel-proposed-tp3834813p3837008.html
>
> To unsubscribe from DecimalFormatLabel (proposed), click <
> http://apache-wicket.1842946.n4.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=3834813&code=cHJhbmF2LmthY2hvbGlhQGdtYWlsLmNvbXwzODM0ODEzfC0yMDAxMDYyNzM1>
> here.
>
>
>
> --
> View this message in context:
> http://apache-wicket.1842946.n4.nabble.com/DecimalFormatLabel-proposed-tp3834813p3837115.html
> Sent from the Users forum mailing list archive at Nabble.com.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
>
>
--
Yves-Marie LAINÉ
