1 /* ====================================================================
2 * The Apache Software License, Version 1.1
3 *
4 * Copyright (c) 2000 The Apache Software Foundation. All rights
5 * reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * 3. The end-user documentation included with the redistribution,
20 * if any, must include the following acknowledgment:
21 * "This product includes software developed by the
22 * Apache Software Foundation (http://www.apache.org/)."
23 * Alternately, this acknowledgment may appear in the software itself,
24 * if and wherever such third-party acknowledgments normally appear.
25 *
26 * 4. The names "Apache" and "Apache Software Foundation" must
27 * not be used to endorse or promote products derived from this
28 * software without prior written permission. For written
29 * permission, please contact apache@apache.org.
30 *
31 * 5. Products derived from this software may not be called "Apache",
32 * nor may "Apache" appear in their name, without prior written
33 * permission of the Apache Software Foundation.
34 *
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 * SUCH DAMAGE.
47 * ====================================================================
48 *
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation. For more
51 * information on the Apache Software Foundation, please see
52 * <http://www.apache.org/>.
53 *
54 * Portions of this software are based upon public domain software
55 * originally written at the National Center for Supercomputing Applications,
56 * University of Illinois, Urbana-Champaign.
57 */
58 package com.bonevich.eclipse.cvsgrapher.editors;
59
60 import org.eclipse.draw2d.geometry.Rectangle;
61 import org.eclipse.gef.EditPart;
62 import org.eclipse.gef.EditPolicy;
63 import org.eclipse.gef.Request;
64 import org.eclipse.gef.commands.Command;
65 import org.eclipse.gef.editpolicies.NonResizableEditPolicy;
66 import org.eclipse.gef.editpolicies.XYLayoutEditPolicy;
67 import org.eclipse.gef.requests.CreateRequest;
68
69 /***
70 * Layout policy for the CVS Graph GEF Editor.
71 *
72 * @author jbonevic
73 */
74 public final class CvsGraphXYLayoutEditPolicy extends XYLayoutEditPolicy
75 {
76 /***
77 * @see org.eclipse.gef.editpolicies.ConstrainedLayoutEditPolicy#createAddCommand(EditPart, Object)
78 */
79 protected Command createAddCommand(EditPart child, Object constraint)
80 {
81 return null;
82 }
83
84 /***
85 * @see org.eclipse.gef.editpolicies.ConstrainedLayoutEditPolicy#createChangeConstraintCommand(EditPart, Object)
86 */
87 protected Command createChangeConstraintCommand(EditPart child, Object constraint)
88 {
89 SetConstraintCommand locationCommand = new SetConstraintCommand();
90
91 ICvsGraphNodeEditPart node = (ICvsGraphNodeEditPart) child;
92
93 locationCommand.setViewHelper(node.getViewHelper());
94 locationCommand.setLocation((Rectangle) constraint);
95
96 return locationCommand;
97 }
98
99 /***
100 * @see org.eclipse.gef.editpolicies.LayoutEditPolicy#getCreateCommand(CreateRequest)
101 */
102 protected Command getCreateCommand(CreateRequest request)
103 {
104 return null;
105 }
106
107 /***
108 * @see org.eclipse.gef.editpolicies.LayoutEditPolicy#createChildEditPolicy(EditPart)
109 */
110 protected EditPolicy createChildEditPolicy(EditPart child)
111 {
112 return new NonResizableEditPolicy();
113 //return new ResizableEditPolicy();
114 }
115
116 /***
117 * @see org.eclipse.gef.editpolicies.LayoutEditPolicy#getDeleteDependantCommand(Request)
118 */
119 protected Command getDeleteDependantCommand(Request request)
120 {
121 return null;
122 }
123
124 /***
125 * @see org.eclipse.gef.editpolicies.ConstrainedLayoutEditPolicy#getConstraintFor(org.eclipse.draw2d.geometry.Rectangle)
126 */
127 public Object getConstraintFor(Rectangle r)
128 {
129 return getConstraintFor(r.getLocation());
130 }
131
132 }
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