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1
17 package org.eclipse.emf.mapping.presentation;
18
19
20 import java.util.ArrayList  ;
21 import java.util.Iterator ;
22 import java.util.List ;
23
24 import org.eclipse.jface.viewers.ISelection;
25 import org.eclipse.jface.viewers.IStructuredSelection;
26 import org.eclipse.jface.viewers.StructuredSelection;
27
28
29 public class ComposedSelection implements IStructuredSelection, IComposedSelection
30 {
31 protected ISelection [] selections;
32 protected ISelection primarySelection;
33
34 public ComposedSelection(ISelection primarySelection, ISelection [] selections)
35 {
36 this.primarySelection = primarySelection;
37 this.selections = selections;
38 }
39
40 public boolean isEmpty()
41 {
42 return primarySelection == null || primarySelection.isEmpty();
43 }
44
45
48 public Iterator getElements()
49 {
50 return primarySelection instanceof IStructuredSelection ? ((IStructuredSelection)primarySelection).iterator() : null;
51 }
52
53 public Iterator iterator()
54 {
55 return primarySelection instanceof IStructuredSelection ? ((IStructuredSelection)primarySelection).iterator() : null;
56 }
57
58 public Object [] toArray()
59 {
60 return primarySelection instanceof IStructuredSelection ? ((IStructuredSelection)primarySelection).toArray() : null;
61 }
62
63 public List toList()
64 {
65 return primarySelection instanceof IStructuredSelection ? ((IStructuredSelection)primarySelection).toList() : null;
66 }
67
68 public Object getFirstElement()
69 {
70 return primarySelection instanceof IStructuredSelection ? ((IStructuredSelection)primarySelection).getFirstElement() : null;
71 }
72
73 public Object getPrimaryItem()
74 {
75 return primarySelection instanceof IStructuredSelection ? ((IStructuredSelection)primarySelection).getFirstElement() : null;
76 }
77
78 public int size()
79 {
80 return primarySelection instanceof IStructuredSelection ? ((IStructuredSelection)primarySelection).size() : 0;
81 }
82
83 public ISelection getSelection()
84 {
85 return primarySelection;
86 }
87
88 public ISelection [] getSelections()
89 {
90 return selections;
91 }
92
93 public IStructuredSelection getCombinedSelection()
94 {
95 List result = new ArrayList ();
96 for (int i = 0; i < selections.length; ++i)
97 {
98 ISelection selection = selections[i];
99 if (selection instanceof IStructuredSelection)
100 {
101 for (Iterator subselections = ((IStructuredSelection)selection).iterator(); subselections.hasNext(); )
102 {
103 result.add(subselections.next());
104 }
105 }
106 }
107
108 return new StructuredSelection(result);
109 }
110
111 public boolean equals(Object that)
112 {
113 if (this == that)
114 {
115 return true;
116 }
117 else if (!(that instanceof IComposedSelection))
118 {
119 return false;
120 }
121 else
122 {
123 IComposedSelection thatComposedSelection = (IComposedSelection)that;
124 ISelection thatPrimarySelection = thatComposedSelection.getSelection();
125 ISelection [] thatSelections = thatComposedSelection.getSelections();
126
127 if (selections.length == thatSelections.length)
128 {
129 for (int i = 0; i < selections.length; ++i)
130 {
131 if (selections[i] == primarySelection)
132 {
133 if (thatSelections[i] != thatPrimarySelection)
134 {
135 return false;
136 }
137 }
138
139 if (!selections[i].equals(thatSelections[i]))
140 {
141 return false;
142 }
143 }
144
145 return true;
146 }
147 else
148 {
149 return false;
150 }
151 }
152 }
153
154 public String toString()
155 {
156 StringBuffer result = new StringBuffer ();
157 result.append("ComposedSection(");
158 if (selections != null)
159 {
160 for (int i = 0; i < selections.length; ++i)
161 {
162 if (selections[i] == primarySelection)
163 {
164 result.append('(');
165 result.append(selections[i]);
166 result.append(')');
167 }
168 else
169 {
170 result.append(selections[i]);
171 }
172 }
173 }
174 result.append(')');
175 return result.toString();
176 }
177 }
178 |
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