001: /*
002: The contents of this file are subject to the Common Public Attribution License
003: Version 1.0 (the "License"); you may not use this file except in compliance with
004: the License. You may obtain a copy of the License at
005: http://www.projity.com/license . The License is based on the Mozilla Public
006: License Version 1.1 but Sections 14 and 15 have been added to cover use of
007: software over a computer network and provide for limited attribution for the
008: Original Developer. In addition, Exhibit A has been modified to be consistent
009: with Exhibit B.
010:
011: Software distributed under the License is distributed on an "AS IS" basis,
012: WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the
013: specific language governing rights and limitations under the License. The
014: Original Code is OpenProj. The Original Developer is the Initial Developer and
015: is Projity, Inc. All portions of the code written by Projity are Copyright (c)
016: 2006, 2007. All Rights Reserved. Contributors Projity, Inc.
017:
018: Alternatively, the contents of this file may be used under the terms of the
019: Projity End-User License Agreeement (the Projity License), in which case the
020: provisions of the Projity License are applicable instead of those above. If you
021: wish to allow use of your version of this file only under the terms of the
022: Projity License and not to allow others to use your version of this file under
023: the CPAL, indicate your decision by deleting the provisions above and replace
024: them with the notice and other provisions required by the Projity License. If
025: you do not delete the provisions above, a recipient may use your version of this
026: file under either the CPAL or the Projity License.
027:
028: [NOTE: The text of this license may differ slightly from the text of the notices
029: in Exhibits A and B of the license at http://www.projity.com/license. You should
030: use the latest text at http://www.projity.com/license for your modifications.
031: You may not remove this license text from the source files.]
032:
033: Attribution Information: Attribution Copyright Notice: Copyright � 2006, 2007
034: Projity, Inc. Attribution Phrase (not exceeding 10 words): Powered by OpenProj,
035: an open source solution from Projity. Attribution URL: http://www.projity.com
036: Graphic Image as provided in the Covered Code as file: openproj_logo.png with
037: alternatives listed on http://www.projity.com/logo
038:
039: Display of Attribution Information is required in Larger Works which are defined
040: in the CPAL as a work which combines Covered Code or portions thereof with code
041: not governed by the terms of the CPAL. However, in addition to the other notice
042: obligations, all copies of the Covered Code in Executable and Source Code form
043: distributed must, as a form of attribution of the original author, include on
044: each user interface screen the "OpenProj" logo visible to all users. The
045: OpenProj logo should be located horizontally aligned with the menu bar and left
046: justified on the top left of the screen adjacent to the File menu. The logo
047: must be at least 100 x 25 pixels. When users click on the "OpenProj" logo it
048: must direct them back to http://www.projity.com.
049: */
050: package com.projity.undo;
051:
052: import java.util.ArrayList;
053: import java.util.HashMap;
054: import java.util.Iterator;
055: import java.util.List;
056: import java.util.ListIterator;
057: import java.util.Map;
058:
059: import javax.swing.event.UndoableEditEvent;
060: import javax.swing.event.UndoableEditListener;
061: import javax.swing.undo.UndoManager;
062: import javax.swing.undo.UndoableEdit;
063: import javax.swing.undo.UndoableEditSupport;
064:
065: import com.projity.grouping.core.Node;
066: import com.projity.grouping.core.model.NodeModel;
067: import com.projity.util.Environment;
068:
069: /**
070: *
071: */
072: public class UndoController extends UndoManager implements
073: UndoableEditListener {
074:
075: protected transient UndoableEditSupport editSupport;
076:
077: //protected transient UndoManager undoManager;
078: /**
079: *
080: */
081: public UndoController() {
082: editSupport = new UndoableEditSupport();
083: //undoManager=new UndoManager();
084: editSupport.addUndoableEditListener(this );
085: }
086:
087: public void undoableEditHappened(UndoableEditEvent e) {
088: //System.out.println("undoableEditHappened");
089: UndoableEdit edit = e.getEdit();
090: // undoManager.addEdit(edit);
091: super .addEdit(edit);
092: }
093:
094: public void clear() {
095: // undoManager.discardAllEdits();
096: super .discardAllEdits();
097: nodeMapping.clear();
098: }
099:
100: public UndoableEditSupport getEditSupport() {
101: return editSupport;
102: }
103:
104: public void undo() {
105: if (canUndo()) {
106: Environment.setBatchMode(true);
107: super .undo();
108: // undoManager.undo();
109: Environment.setBatchMode(false);
110: }
111: }
112:
113: public void redo() {
114: if (canRedo()) {
115: Environment.setBatchMode(true);
116: // undoManager.redo();
117: super .redo();
118: Environment.setBatchMode(false);
119: }
120: }
121:
122: public boolean canUndo() {
123: return super .canUndo();//undoManager.canUndo();
124: }
125:
126: public boolean canRedo() {
127: return super .canRedo();//undoManager.canRedo();
128: }
129:
130: protected Map nodeMapping = new HashMap();
131:
132: public void store(Node node, NodeModel model) {
133: HashMap modelMap = (HashMap) nodeMapping.get(model);
134: if (modelMap == null) {
135: modelMap = new HashMap();
136: nodeMapping.put(model, modelMap);
137: }
138: modelMap.put(node.getImpl(), node);
139: }
140:
141: public Node retrieve(Object impl, NodeModel model) {
142: HashMap modelMap = (HashMap) nodeMapping.get(model);
143: if (modelMap == null)
144: return null;
145: return (Node) modelMap.get(impl);
146: }
147:
148: public void beginUpdate() {
149: if (editSupport != null)
150: editSupport.beginUpdate();
151: }
152:
153: public void endUpdate() {
154: if (editSupport != null)
155: editSupport.endUpdate();
156: }
157:
158: public List<String> getEditNames() {
159: if (edits == null)
160: return null;
161: else {
162: int nb = edits.size() >= 50 ? 50 : edits.size();
163: List<String> r = new ArrayList<String>(nb);
164: for (ListIterator<UndoableEdit> i = edits
165: .listIterator(edits.size() - nb); i.hasNext();) {
166: UndoableEdit edit = i.next();
167: if (edit != null)
168: r.add(edit.getPresentationName());
169: }
170: return r;
171: }
172: }
173:
174: }
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