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Symmetry UI provides a basic UI toolkit for use with Symmetry.

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/*
 * 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.hobsoft.symmetry.ui.view;

import org.hobsoft.symmetry.ui.Label;
import org.hobsoft.symmetry.ui.Table;

import static com.google.common.base.Objects.firstNonNull;
import static com.google.common.base.Preconditions.checkNotNull;

/**
 * 
 * 
 * @author Mark Hobson
 */
public class LabelTableHeaderRenderer extends Label implements TableCellRenderer
{
	// constructors -----------------------------------------------------------
	
	public LabelTableHeaderRenderer()
	{
		setTransient(true);
	}
	
	// TableCellRenderer methods ----------------------------------------------
	
	/**
	 * {@inheritDoc}
	 */
	@Override
	public Label getTableCellComponent(Table table, int row, int column)
	{
		checkNotNull(table, "table cannot be null");
		
		Object value = table.getModel().getColumnName(column);
		
		setText(firstNonNull(value, "").toString());
		
		return this;
	}
}