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/*****************************************************************************
* Copyright (c) 2010 CEA LIST.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
* Thibault Le Ouay t.leouay@sherpa-eng.com - Add binding implementation
*****************************************************************************/
package org.eclipse.papyrus.infra.widgets.editors;
import org.eclipse.core.databinding.conversion.IConverter;
import org.eclipse.papyrus.infra.widgets.Activator;
import org.eclipse.papyrus.infra.widgets.validator.RealValidator;
import org.eclipse.swt.widgets.Composite;
/**
* An editor representing a float value as a text box
*
* @author Camille Letavernier
*/
public class DoubleEditor extends StringEditor {
private IConverter targetToModelConverter;
/**
*
* Constructs an Editor for a Double value. The widget is a Text field.
*
* @param parent
* The Composite in which the editor is created
* @param style
* The Text's style
*/
public DoubleEditor(Composite parent, int style) {
super(parent, style);
targetValidator = new RealValidator();
targetToModelConverter = new IConverter() {
@Override
public Object getFromType() {
return String.class;
}
@Override
public Object getToType() {
return Double.class;
}
@Override
public Double convert(Object fromObject) {
if (fromObject instanceof String) {
String newString = ((String) fromObject)
.replaceAll(" ", ""); //$NON-NLS-1$ //$NON-NLS-2$
try {
return Double.parseDouble(newString);
} catch (NumberFormatException ex) {
Activator.log.error(ex);
return null;
}
}
return null;
}
};
IConverter doubleToString = new IConverter() {
@Override
public Object getFromType() {
return Double.class;
}
@Override
public Object getToType() {
return String.class;
}
@Override
public Object convert(Object fromObject) {
if (fromObject instanceof Double) {
return Double.toString((Double) fromObject);
}
return ""; //$NON-NLS-1$
}
};
setValidateOnDelay(true);
setConverters(targetToModelConverter, doubleToString);
setTargetAfterGetValidator(targetValidator);
}
/**
* {@inheritDoc}
*/
@Override
public Object getEditableType() {
return Double.class;
}
/**
* {@inheritDoc}
*/
@Override
public Double getValue() {
try {
return (Double) targetToModelConverter.convert(super.getValue());
} catch (Exception ex) {
Activator.log.error(ex);
return null;
}
}
}
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