ListBinding.java
资源名称:swingx.zip [点击查看]
上传用户:zhengdagz
上传日期:2014-03-06
资源大小:1956k
文件大小:5k
源码类别:
xml/soap/webservice
开发平台:
Java
- /*
- * $Id: ListBinding.java,v 1.2 2005/10/10 17:00:50 rbair Exp $
- *
- * Copyright 2004 Sun Microsystems, Inc., 4150 Network Circle,
- * Santa Clara, California 95054, U.S.A. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
- package org.jdesktop.binding.swingx;
- import java.beans.PropertyChangeEvent;
- import java.beans.PropertyChangeListener;
- import java.util.ArrayList;
- import java.util.List;
- import javax.swing.DefaultListModel;
- import javax.swing.JComponent;
- import javax.swing.JList;
- import javax.swing.ListModel;
- import org.jdesktop.binding.DataConstants;
- import org.jdesktop.binding.DataModel;
- import org.jdesktop.binding.SelectionModel;
- import org.jdesktop.binding.TabularDataModel;
- import org.jdesktop.binding.metadata.ListMetaData;
- import org.jdesktop.binding.swingx.adapter.DataModelToListModelAdapter;
- import org.jdesktop.binding.swingx.adapter.ListSelectionBinding;
- public class ListBinding extends AbstractBinding {
- private JList list;
- public ListBinding(JList list, DataModel model, String fieldName) {
- super(list, model, fieldName, AbstractBinding.AUTO_VALIDATE_NONE);
- }
- public boolean isModified() {
- return false;
- }
- public boolean isValid() {
- return true;
- }
- public JComponent getComponent() {
- return list;
- }
- protected void setComponent(JComponent component) {
- list = (JList) component;
- configureSelection();
- }
- private void configureSelection() {
- Object selectionMeta = metaData
- .getCustomProperty(DataConstants.SELECTION_MODEL);
- if (selectionMeta instanceof SelectionModel) {
- new ListSelectionBinding((SelectionModel) selectionMeta, list
- .getSelectionModel());
- }
- }
- protected void installMetaDataListener() {
- PropertyChangeListener l = new PropertyChangeListener() {
- public void propertyChange(PropertyChangeEvent evt) {
- if (DataConstants.SELECTION_MODEL.equals(evt.getPropertyName())) {
- configureSelection();
- }
- }
- };
- metaData.addPropertyChangeListener(l);
- }
- protected Object getComponentValue() {
- ListModel model = list.getModel();
- Class klazz = metaData.getElementClass();
- if (klazz.equals(List.class)) {
- List lvalue = new ArrayList();
- for (int i = 0, size = model.getSize(); i < size; i++) {
- lvalue.add(model.getElementAt(i));
- }
- return lvalue;
- } else if (klazz.isArray()) {
- // XXX we lose the array type, use a generic Object[]
- int size = model.getSize();
- Object[] values = new Object[size];
- for (int i = 0; i < size; i++) {
- values[i] = model.getElementAt(i);
- }
- return values;
- }
- return null;
- }
- protected void setComponentValue(Object value) {
- if (metaData instanceof ListMetaData) {
- setComponentValueFromTabularDataModel((TabularDataModel) value);
- return;
- }
- Class klazz = metaData.getElementClass();
- if (klazz.equals(List.class)) {
- List lvalue = (List) value;
- if (lvalue != null) {
- list.setListData(lvalue.toArray());
- }
- } else if (klazz.isArray()) {
- Object[] arrayValue = (Object[]) value;
- if (arrayValue != null) {
- list.setListData(arrayValue);
- } else {
- // Empty the list.
- list.setModel(new DefaultListModel());
- }
- }
- }
- private void setComponentValueFromTabularDataModel(TabularDataModel model) {
- //create a custom ListModel bound to the entire TabularDataModel
- ListMetaData listMeta = (ListMetaData) metaData;
- list.setModel(new DataModelToListModelAdapter(model, listMeta.getRendererFieldName()));
- }
- }