1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.log4j.lf5.viewer.categoryexplorer;
18
19 import java.awt.Dimension;
20 import java.awt.Rectangle;
21 import java.awt.event.MouseEvent;
22 import java.util.EventObject;
23
24 import javax.swing.Icon;
25 import javax.swing.JTree;
26 import javax.swing.tree.DefaultTreeCellEditor;
27 import javax.swing.tree.TreePath;
28
29 /**
30 * CategoryImmediateEditor
31 *
32 * @author Michael J. Sikorsky
33 * @author Robert Shaw
34 */
35
36 // Contributed by ThoughtWorks Inc.
37
38 public class CategoryImmediateEditor extends DefaultTreeCellEditor {
39 //--------------------------------------------------------------------------
40 // Constants:
41 //--------------------------------------------------------------------------
42
43 //--------------------------------------------------------------------------
44 // Protected Variables:
45 //--------------------------------------------------------------------------
46 private CategoryNodeRenderer renderer;
47 protected Icon editingIcon = null;
48
49 //--------------------------------------------------------------------------
50 // Private Variables:
51 //--------------------------------------------------------------------------
52
53 //--------------------------------------------------------------------------
54 // Constructors:
55 //--------------------------------------------------------------------------
56 public CategoryImmediateEditor(JTree tree,
57 CategoryNodeRenderer renderer,
58 CategoryNodeEditor editor) {
59 super(tree, renderer, editor);
60 this.renderer = renderer;
61 renderer.setIcon(null);
62 renderer.setLeafIcon(null);
63 renderer.setOpenIcon(null);
64 renderer.setClosedIcon(null);
65
66 super.editingIcon = null;
67 }
68
69 //--------------------------------------------------------------------------
70 // Public Methods:
71 //--------------------------------------------------------------------------
72 public boolean shouldSelectCell(EventObject e) {
73 boolean rv = false; // only mouse events
74
75 if (e instanceof MouseEvent) {
76 MouseEvent me = (MouseEvent) e;
77 TreePath path = tree.getPathForLocation(me.getX(),
78 me.getY());
79 CategoryNode node = (CategoryNode)
80 path.getLastPathComponent();
81
82 rv = node.isLeaf() /*|| !inCheckBoxHitRegion(me)*/;
83 }
84 return rv;
85 }
86
87 public boolean inCheckBoxHitRegion(MouseEvent e) {
88 TreePath path = tree.getPathForLocation(e.getX(),
89 e.getY());
90 if (path == null) {
91 return false;
92 }
93 CategoryNode node = (CategoryNode) path.getLastPathComponent();
94 boolean rv = false;
95
96 if (true) {
97 // offset and lastRow DefaultTreeCellEditor
98 // protected members
99
100 Rectangle bounds = tree.getRowBounds(lastRow);
101 Dimension checkBoxOffset =
102 renderer.getCheckBoxOffset();
103
104 bounds.translate(offset + checkBoxOffset.width,
105 checkBoxOffset.height);
106
107 rv = bounds.contains(e.getPoint());
108 }
109 return true;
110 }
111
112 //--------------------------------------------------------------------------
113 // Protected Methods:
114 //--------------------------------------------------------------------------
115
116 protected boolean canEditImmediately(EventObject e) {
117 boolean rv = false;
118
119 if (e instanceof MouseEvent) {
120 MouseEvent me = (MouseEvent) e;
121 rv = inCheckBoxHitRegion(me);
122 }
123
124 return rv;
125 }
126
127 protected void determineOffset(JTree tree, Object value,
128 boolean isSelected, boolean expanded,
129 boolean leaf, int row) {
130 // Very important: means that the tree won't jump around.
131 offset = 0;
132 }
133
134 //--------------------------------------------------------------------------
135 // Private Methods:
136 //--------------------------------------------------------------------------
137
138 //--------------------------------------------------------------------------
139 // Nested Top-Level Classes or Interfaces:
140 //--------------------------------------------------------------------------
141
142 }
143
144
145
146
147
148