We keep all our money amounts as ints representing the number of cents.
We have a MoneyField that extends TextField and overrides
getConverter(Class) to return something like this:
public class MoneyConverter implements IConverter {
public Object convertToObject(String value, Locale locale) {
try {
return Math.round(Float.parseFloat(value) * 100);
} catch (NumberFormatException e) {
throw new ConversionException(e)
.setSourceValue(value)
.setResourceKey("MoneyConverter")
}
}
public String convertToString(Object value, Locale locale) {
float amount = ((Number) value).floatValue() / 100;
return String.format("%.2f", amount);
}
}
If you like, you can prepend a dollar sign in convertToString and strip
it in convertToObject.
One thing I want to do but haven't gotten around to is to change the
styling depending on the focus. When the field doesn't have focus it
should be right-aligned, but this is weird when editing, so the idea is
to left-align it while the field has focus.
jk
On Wed, Feb 25, 2009 at 07:20:31PM -0300, Daniel Ferreira Castro wrote:
> I would like an opinion about what is the propper, or more recommended, way
> to format a TextField to show money?
> Should I declare it TextField<String> or TextField<Float>?
>
> And to format it with the money symbol ( Like US$) while you type? Any
> ideas?
>
> --
> "Two rules to succeed in life:
> 1 - don´t tell people everything you know."
> --------
> We shall go on to the end.
> We shall fight in France
> We shall fightover the seas and oceans.
> We shall fight with growing confidence and growing strength in the air.
> We shall defend our island whatever the cost may be
> We shall fight on beaches, we shall fight on the landing grounds,
> We shall fight in the fields and in the streets,
> We shall fight on the hills.
> We shall never surrender.
> Winston Churchill
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