1 /*
2  * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.
8  *
9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  *
23  */
24 
25 package sun.jvm.hotspot.ui.treetable;
26 
27 import javax.swing.JTree;
28 import javax.swing.SwingUtilities;
29 import javax.swing.table.AbstractTableModel;
30 import javax.swing.tree.TreePath;
31 import javax.swing.event.TreeExpansionEvent;
32 import javax.swing.event.TreeExpansionListener;
33 import javax.swing.event.TreeModelEvent;
34 import javax.swing.event.TreeModelListener;
35 
36 /**
37  * This is a wrapper class takes a TreeTableModel and implements
38  * the table model interface. The implementation is trivial, with
39  * all of the event dispatching support provided by the superclass:
40  * the AbstractTableModel.
41  *
42  *
43  * @author Philip Milne
44  * @author Scott Violet
45  */
46 public class TreeTableModelAdapter extends AbstractTableModel
47 {
48     JTree tree;
49     TreeTableModel treeTableModel;
50 
TreeTableModelAdapter(TreeTableModel treeTableModel, JTree tree)51     public TreeTableModelAdapter(TreeTableModel treeTableModel, JTree tree) {
52         this.tree = tree;
53         this.treeTableModel = treeTableModel;
54 
55         tree.addTreeExpansionListener(new TreeExpansionListener() {
56             // Don't use fireTableRowsInserted() here; the selection model
57             // would get updated twice.
58             public void treeExpanded(TreeExpansionEvent event) {
59               fireTableDataChanged();
60             }
61             public void treeCollapsed(TreeExpansionEvent event) {
62               fireTableDataChanged();
63             }
64         });
65 
66         // Install a TreeModelListener that can update the table when
67         // tree changes. We use delayedFireTableDataChanged as we can
68         // not be guaranteed the tree will have finished processing
69         // the event before us.
70         treeTableModel.addTreeModelListener(new TreeModelListener() {
71             public void treeNodesChanged(TreeModelEvent e) {
72                 delayedFireTableDataChanged();
73             }
74 
75             public void treeNodesInserted(TreeModelEvent e) {
76                 delayedFireTableDataChanged();
77             }
78 
79             public void treeNodesRemoved(TreeModelEvent e) {
80                 delayedFireTableDataChanged();
81             }
82 
83             public void treeStructureChanged(TreeModelEvent e) {
84                 delayedFireTableDataChanged();
85             }
86         });
87     }
88 
89     // Wrappers, implementing TableModel interface.
90 
getColumnCount()91     public int getColumnCount() {
92         return treeTableModel.getColumnCount();
93     }
94 
getColumnName(int column)95     public String getColumnName(int column) {
96         return treeTableModel.getColumnName(column);
97     }
98 
getColumnClass(int column)99     public Class getColumnClass(int column) {
100         return treeTableModel.getColumnClass(column);
101     }
102 
getRowCount()103     public int getRowCount() {
104         return tree.getRowCount();
105     }
106 
nodeForRow(int row)107     protected Object nodeForRow(int row) {
108         TreePath treePath = tree.getPathForRow(row);
109         return treePath.getLastPathComponent();
110     }
111 
getValueAt(int row, int column)112     public Object getValueAt(int row, int column) {
113         return treeTableModel.getValueAt(nodeForRow(row), column);
114     }
115 
isCellEditable(int row, int column)116     public boolean isCellEditable(int row, int column) {
117          return treeTableModel.isCellEditable(nodeForRow(row), column);
118     }
119 
setValueAt(Object value, int row, int column)120     public void setValueAt(Object value, int row, int column) {
121         treeTableModel.setValueAt(value, nodeForRow(row), column);
122     }
123 
124     /**
125      * Invokes fireTableDataChanged after all the pending events have been
126      * processed. SwingUtilities.invokeLater is used to handle this.
127      */
delayedFireTableDataChanged()128     protected void delayedFireTableDataChanged() {
129         SwingUtilities.invokeLater(new Runnable() {
130             public void run() {
131                 fireTableDataChanged();
132             }
133         });
134     }
135 }
136