/**
* Copyright (C) 2015 Valkyrie RCP
*
* 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 org.valkyriercp.list;
import javax.swing.*;
import java.awt.*;
/**
* Abstract base class for ListCellRenderer that convert the cell value into a
* String.
* <p>
* Subclasses need to override <code>getTextValue</code> which is responsible
* for the conversion.
*
* @author oliverh
*/
public abstract class TextValueListRenderer extends DefaultListCellRenderer {
/**
* Template method to convert cell value into a String.
*
* @param value
* the cell value
* @return the representation of value that should be rendered by this
* ListCellRenderer
*/
protected abstract String getTextValue(Object value);
public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected,
boolean cellHasFocus) {
super.getListCellRendererComponent(list, "", index, isSelected, cellHasFocus);
setText(getTextValue(value));
return this;
}
}