doublewrapper.java

SWING的界面UI包 SWING的界面UI包

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package dyno.swing.designer.properties.wrappers.primitive;

import dyno.swing.designer.properties.ValidationException;
import dyno.swing.designer.properties.wrappers.Decoder;
import dyno.swing.designer.properties.wrappers.Encoder;
import dyno.swing.designer.properties.wrappers.SourceCoder;

/**
 *
 * @author William Chen
 */
public class DoubleWrapper implements Encoder, Decoder, SourceCoder {

    public String encode(Object v) {
        if(v==null)
            return "0.0";
        return v.toString();
    }

    public Object decode(String txt) {
        if(txt==null)
            return Double.valueOf(0);
        return Double.parseDouble(txt);
    }

    public void validate(String txt) throws ValidationException {
        try{
            Double.parseDouble(txt);
        }catch(NumberFormatException nfe){
            throw new ValidationException(nfe.getMessage());
        }
    }

    public String getJavaCode(Object value) {
        if(value==null)
            return "0.0";
        return value.toString();
    }

}