| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.taverna.lang.ui.treetable; |
| |
| import javax.swing.JTree; |
| import javax.swing.SwingUtilities; |
| import javax.swing.event.TreeExpansionEvent; |
| import javax.swing.event.TreeExpansionListener; |
| import javax.swing.event.TreeModelEvent; |
| import javax.swing.event.TreeModelListener; |
| import javax.swing.table.AbstractTableModel; |
| import javax.swing.tree.TreePath; |
| |
| /** |
| * This is a wrapper class takes a TreeTableModel and implements |
| * the table model interface. The implementation is trivial, with |
| * all of the event dispatching support provided by the superclass: |
| * the AbstractTableModel. |
| * |
| * @version 1.2 10/27/98 |
| * |
| * @author Philip Milne |
| * @author Scott Violet |
| */ |
| @SuppressWarnings("serial") |
| public class TreeTableModelAdapter extends AbstractTableModel |
| { |
| JTree tree; |
| TreeTableModel treeTableModel; |
| |
| public TreeTableModelAdapter(TreeTableModel treeTableModel, JTree tree) { |
| this.tree = tree; |
| this.treeTableModel = treeTableModel; |
| |
| tree.addTreeExpansionListener(new TreeExpansionListener() { |
| // Don't use fireTableRowsInserted() here; the selection model |
| // would get updated twice. |
| public void treeExpanded(TreeExpansionEvent event) { |
| fireTableDataChanged(); |
| } |
| public void treeCollapsed(TreeExpansionEvent event) { |
| fireTableDataChanged(); |
| } |
| }); |
| |
| // Install a TreeModelListener that can update the table when |
| // tree changes. We use delayedFireTableDataChanged as we can |
| // not be guaranteed the tree will have finished processing |
| // the event before us. |
| treeTableModel.addTreeModelListener(new TreeModelListener() { |
| public void treeNodesChanged(TreeModelEvent e) { |
| delayedFireTableDataChanged(); |
| } |
| |
| public void treeNodesInserted(TreeModelEvent e) { |
| delayedFireTableDataChanged(); |
| } |
| |
| public void treeNodesRemoved(TreeModelEvent e) { |
| delayedFireTableDataChanged(); |
| } |
| |
| public void treeStructureChanged(TreeModelEvent e) { |
| delayedFireTableDataChanged(); |
| } |
| }); |
| } |
| |
| // Wrappers, implementing TableModel interface. |
| |
| public int getColumnCount() { |
| return treeTableModel.getColumnCount(); |
| } |
| |
| public String getColumnName(int column) { |
| return treeTableModel.getColumnName(column); |
| } |
| |
| public Class getColumnClass(int column) { |
| return treeTableModel.getColumnClass(column); |
| } |
| |
| public int getRowCount() { |
| return tree.getRowCount(); |
| } |
| |
| protected Object nodeForRow(int row) { |
| TreePath treePath = tree.getPathForRow(row); |
| if (treePath == null) { |
| return null; |
| } |
| return treePath.getLastPathComponent(); |
| } |
| |
| public Object getValueAt(int row, int column) { |
| return treeTableModel.getValueAt(nodeForRow(row), column); |
| } |
| |
| public boolean isCellEditable(int row, int column) { |
| return treeTableModel.isCellEditable(nodeForRow(row), column); |
| } |
| |
| public void setValueAt(Object value, int row, int column) { |
| treeTableModel.setValueAt(value, nodeForRow(row), column); |
| } |
| |
| /** |
| * Invokes fireTableDataChanged after all the pending events have been |
| * processed. SwingUtilities.invokeLater is used to handle this. |
| */ |
| protected void delayedFireTableDataChanged() { |
| SwingUtilities.invokeLater(new Runnable() { |
| public void run() { |
| TreePath[] selected = tree.getSelectionPaths(); |
| fireTableDataChanged(); |
| tree.setSelectionPaths(selected); |
| } |
| }); |
| } |
| } |
| |