Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
ActionList |
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| 5.142857142857143;5.143 |
1 | /* $Id: ActionList.java 17865 2010-01-12 20:45:26Z linus $ | |
2 | ***************************************************************************** | |
3 | * Copyright (c) 2009 Contributors - see below | |
4 | * All rights reserved. This program and the accompanying materials | |
5 | * are made available under the terms of the Eclipse Public License v1.0 | |
6 | * which accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | * | |
9 | * Contributors: | |
10 | * tfmorris | |
11 | ***************************************************************************** | |
12 | * | |
13 | * Some portions of this file was previously release using the BSD License: | |
14 | */ | |
15 | ||
16 | // Copyright (c) 2008 The Regents of the University of California. All | |
17 | // Rights Reserved. Permission to use, copy, modify, and distribute this | |
18 | // software and its documentation without fee, and without a written | |
19 | // agreement is hereby granted, provided that the above copyright notice | |
20 | // and this paragraph appear in all copies. This software program and | |
21 | // documentation are copyrighted by The Regents of the University of | |
22 | // California. The software program and documentation are supplied "AS | |
23 | // IS", without any accompanying services from The Regents. The Regents | |
24 | // does not warrant that the operation of the program will be | |
25 | // uninterrupted or error-free. The end-user understands that the program | |
26 | // was developed for research purposes and is advised not to rely | |
27 | // exclusively on the program for any reason. IN NO EVENT SHALL THE | |
28 | // UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, | |
29 | // SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, | |
30 | // ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF | |
31 | // THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF | |
32 | // SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY | |
33 | // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
34 | // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE | |
35 | // PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF | |
36 | // CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, | |
37 | // UPDATES, ENHANCEMENTS, OR MODIFICATIONS. | |
38 | ||
39 | package org.argouml.uml.diagram.ui; | |
40 | ||
41 | import java.util.List; | |
42 | import java.util.Vector; | |
43 | ||
44 | import javax.swing.Action; | |
45 | import javax.swing.JMenu; | |
46 | import javax.swing.JMenuItem; | |
47 | ||
48 | import org.argouml.kernel.UmlModelMutator; | |
49 | ||
50 | /** | |
51 | * A specialist collection used for filtering the return from getPopUpActions | |
52 | * in FigNodeModelElement and FigEdgeModelElement. | |
53 | * This class should remain package scope as I imagine its lifetime to be | |
54 | * short (we need a better way of registering Actions with Figs) | |
55 | * | |
56 | * @author Bob Tarling | |
57 | */ | |
58 | class ActionList<E> extends Vector<E> { | |
59 | ||
60 | private final boolean readonly; | |
61 | ||
62 | /** | |
63 | * Construct an ActionList which filters modifying actions when | |
64 | * the readonly flag is set using initialList as the initial | |
65 | * content. | |
66 | * | |
67 | * @param initialList initial contents to use for list. | |
68 | * @param readOnly true if mutating actions should be filtered | |
69 | */ | |
70 | ActionList(List<? extends E> initialList, boolean readOnly) { | |
71 | 0 | super(initialList); |
72 | 0 | this.readonly = readOnly; |
73 | 0 | } |
74 | ||
75 | @Override | |
76 | public boolean add(E o) { | |
77 | 0 | if (readonly) { |
78 | 0 | if (isUmlMutator(o) ) { |
79 | 0 | return false; |
80 | 0 | } else if (o instanceof JMenu) { |
81 | 0 | o = (E) trimMenu((JMenu) o); |
82 | } | |
83 | } | |
84 | 0 | if (o != null) { |
85 | 0 | return super.add(o); |
86 | } else { | |
87 | 0 | return false; |
88 | } | |
89 | } | |
90 | ||
91 | @Override | |
92 | public void addElement(E o) { | |
93 | 0 | if (readonly) { |
94 | 0 | if (isUmlMutator(o)) { |
95 | 0 | return; |
96 | 0 | } else if (o instanceof JMenu) { |
97 | 0 | o = (E) trimMenu((JMenu) o); |
98 | } | |
99 | } | |
100 | 0 | if (o != null) { |
101 | 0 | super.addElement(o); |
102 | } | |
103 | 0 | } |
104 | ||
105 | @Override | |
106 | public void add(int index, E o) { | |
107 | 0 | if (readonly) { |
108 | 0 | if (isUmlMutator(o)) { |
109 | 0 | return; |
110 | 0 | } else if (o instanceof JMenu) { |
111 | 0 | o = (E) trimMenu((JMenu) o); |
112 | } | |
113 | } | |
114 | 0 | if (o != null) { |
115 | 0 | super.add(index, o); |
116 | } | |
117 | 0 | } |
118 | ||
119 | @Override | |
120 | public void insertElementAt(E o, int index) { | |
121 | 0 | if (readonly) { |
122 | 0 | if (isUmlMutator(o)) { |
123 | 0 | return; |
124 | 0 | } else if (o instanceof JMenu) { |
125 | 0 | o = (E) trimMenu((JMenu) o); |
126 | } | |
127 | } | |
128 | 0 | if (o != null) { |
129 | 0 | super.insertElementAt(o, index); |
130 | } | |
131 | 0 | } |
132 | ||
133 | /** | |
134 | * Trim out any menu items that have a UML model mutating action | |
135 | * @param menu the menu to be filtered | |
136 | * @return The trimmed menu or null if all contents trimmed out. | |
137 | */ | |
138 | private JMenu trimMenu(JMenu menu) { | |
139 | 0 | for (int i = menu.getItemCount() - 1; i >= 0; --i) { |
140 | 0 | JMenuItem menuItem = menu.getItem(i); |
141 | 0 | Action action = menuItem.getAction(); |
142 | 0 | if (action == null |
143 | && menuItem.getActionListeners().length > 0 | |
144 | && menuItem.getActionListeners()[0] instanceof Action) { | |
145 | 0 | action = (Action) menuItem.getActionListeners()[0]; |
146 | } | |
147 | 0 | if (isUmlMutator(action)) { |
148 | 0 | menu.remove(i); |
149 | } | |
150 | } | |
151 | 0 | if (menu.getItemCount() == 0) { |
152 | 0 | return null; |
153 | } | |
154 | 0 | return menu; |
155 | } | |
156 | ||
157 | /** | |
158 | * @param a An object (typically an Action) to test if its a UML model | |
159 | * mutator | |
160 | * @return true if the given action mutates the UML model. | |
161 | */ | |
162 | private boolean isUmlMutator(Object a) { | |
163 | 0 | return a instanceof UmlModelMutator |
164 | || a.getClass().isAnnotationPresent(UmlModelMutator.class); | |
165 | } | |
166 | } |