gkRadioColumnConfig.java

/*
 * Copyright (C) 2000-2012  InfoChamp System Corporation
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.gk.ui.client.com.grid.column;

import com.extjs.gxt.ui.client.data.ModelData;
import com.extjs.gxt.ui.client.event.Events;
import com.extjs.gxt.ui.client.event.FieldEvent;
import com.extjs.gxt.ui.client.event.Listener;
import com.extjs.gxt.ui.client.store.ListStore;
import com.extjs.gxt.ui.client.widget.form.Field;
import com.extjs.gxt.ui.client.widget.form.Radio;
import com.extjs.gxt.ui.client.widget.form.RadioGroup;
import com.extjs.gxt.ui.client.widget.grid.Grid;

public abstract class gkRadioColumnConfig extends gkCellColumnConfig {

	public gkRadioColumnConfig(gkColumnInfo field) {
		super(field);
	}

	@Override
	protected Field createField() {
		return new Radio() {
			@Override
			public void setFieldLabel(String fieldLabel) {
				super.setFieldLabel(fieldLabel);
				setHeader(fieldLabel);
			}
		};
	}

	@Override
	protected Field createColumnCell(final ModelData model,
			final String property, ListStore<ModelData> store, int rowIndex,
			int colIndex, Grid<ModelData> grid) {
		final Radio radio = (Radio) createField();
		onField(radio);
		// 当刷新栏位时运行。从store里取得值。如果没有这段刷新出的栏位将没有值
		if (model.get(property) != null) {
			String keyValue = model.get(property);
			if (radio.getData(radio.getBoxLabel()).equals(keyValue)) {
				radio.setValue(true);
			} else {
				radio.setValue(false);
			}
		} else {
			if (radio.getValue()) {
				model.set(property, radio.getData(radio.getBoxLabel()));
			} else {
				model.set(property, "");
			}
		}

		// 可以用
		radio.addListener(Events.Change, new Listener<FieldEvent>() {

			@Override
			public void handleEvent(FieldEvent be) {
				if (radio.getValue()) {
					model.set(property, radio.getData(radio.getBoxLabel()));
				} else {
					model.set(property, "");
				}
			}
		});
		addListener(radio, grid, rowIndex, colIndex, store);

		// 用RadioGroup包裹，让ColumnConfig设定所包含居中时自动居中
		RadioGroup radioGroup = new RadioGroup();
		radioGroup.add(radio);
		return radioGroup;
	}
}