mapcombobindedtablecolumn.java

Eclipse RCP下编写的工作管理软件代码

/**
 * 
 */
package net.sf.component.table;

import java.util.Map;

/**
 * $Id: MapComboBindedTableColumn.java 844 2005-09-12 03:18:14Z yflei $
 * Created Date: 2005-7-19
 * @author SimonLei
 */
public class MapComboBindedTableColumn extends ComboBindedTableColumn {
	private Map map;
	/**
	 * @param name
	 */
	public MapComboBindedTableColumn(String name) {
		super(name);
	}

	@Override
	public Object getValue(Object obj) {
		if ( obj == null) return -1;
		Object keyValue = getKeyByValue(obj);
		int index = 0;
		for (Object item: items) {
			if ( item.equals( keyValue)) return new Integer( index);
			index++;
		}
		return -1;
	}

	private Object getKeyByValue(Object obj) {
		for (Object key : map.keySet()) {
			if ( obj.equals( map.get(key))) {
				return key;
			}
		}
		return -1;
	}

	@Override
	public Object getModifiedValue(Object obj) {
		Integer intValue = (Integer)obj;
		if ( intValue == -1) return null;
		return map.get( items[intValue]);
	}

	public String[] getItemsFromComboItems() {
		return items;
	}

	private String[] items;
	public void setMap(Map map) {
		this.map = map;
		this.items = getItemsFromMap();
	}

	private String[] getItemsFromMap() {
		String[] strs = new String[ map.size()];
		map.keySet().toArray( strs);
		return strs;
	}
	
	public String getLabelText( Object obj) {
		if ( obj == null) return "";
		final Object keyByValue = getKeyByValue( obj);
		return keyByValue == null ? "" : keyByValue.toString();
	}
}