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/*
* Copyright 2000-2022 Vaadin Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vaadin.v7.client.renderers;
import com.google.gwt.i18n.client.NumberFormat;
import com.vaadin.v7.client.widget.grid.RendererCellReference;
/**
* Renders a number into a cell using a specific {@link NumberFormat}. By
* default uses the default number format returned by
* {@link NumberFormat#getDecimalFormat()}.
*
* @since 7.4
* @author Vaadin Ltd
*/
public class NumberRenderer implements Renderer<Number> {
private NumberFormat format;
public NumberRenderer() {
this(NumberFormat.getDecimalFormat());
}
public NumberRenderer(NumberFormat format) {
setFormat(format);
}
/**
* Gets the number format that the number should be formatted in.
*
* @return the number format used to render the number
*/
public NumberFormat getFormat() {
return format;
}
/**
* Sets the number format to use for formatting the number.
*
* @param format
* the format to use
* @throws IllegalArgumentException
* when the format is null
*/
public void setFormat(NumberFormat format) throws IllegalArgumentException {
if (format == null) {
throw new IllegalArgumentException("Format cannot be null");
}
this.format = format;
}
@Override
public void render(RendererCellReference cell, Number number) {
cell.getElement().setInnerText(format.format(number));
}
}
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