blob: 90c5fbc15f385f8794c5721065fb4df8f1212841 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/*******************************************************************************
* Copyright (c) 2012 Obeo.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.emf.compare.provider.spec;
import static com.google.common.collect.Iterables.filter;
import java.util.ArrayList;
import java.util.Collection;
import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.compare.Comparison;
import org.eclipse.emf.compare.MatchResource;
import org.eclipse.emf.compare.ResourceAttachmentChange;
import org.eclipse.emf.compare.provider.IItemStyledLabelProvider;
import org.eclipse.emf.compare.provider.MatchResourceItemProvider;
import org.eclipse.emf.compare.provider.utils.ComposedStyledString;
import org.eclipse.emf.compare.provider.utils.IStyledString;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.edit.provider.IItemLabelProvider;
/**
* Specialized {@link MatchResourceItemProvider} returning nice output for {@link #getText(Object)} and
* {@link #getImage(Object)}.
*
* @author <a href="mailto:mikael.barbero@obeo.fr">Mikael Barbero</a>
*/
public class MatchResourceItemProviderSpec extends MatchResourceItemProvider implements IItemStyledLabelProvider {
/**
* Constructor calling super {@link #MatchResourceItemProviderSpec(AdapterFactory)}.
*
* @param adapterFactory
* the adapter factory
*/
public MatchResourceItemProviderSpec(AdapterFactory adapterFactory) {
super(adapterFactory);
}
@Override
public Collection<?> getChildren(Object object) {
Collection<Object> children = new ArrayList<Object>();
MatchResource matchResource = (MatchResource)object;
Comparison comparison = matchResource.getComparison();
for (ResourceAttachmentChange rac : filter(comparison.getDifferences(),
ResourceAttachmentChange.class)) {
final String diffResourceURI = rac.getResourceURI();
if (diffResourceURI != null
&& (diffResourceURI.equals(matchResource.getLeftURI())
|| diffResourceURI.equals(matchResource.getRightURI()) || diffResourceURI
.equals(matchResource.getOriginURI()))) {
children.add(rac);
}
}
return children;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.provider.MatchResourceItemProvider#getText(java.lang.Object)
*/
@Override
public String getText(Object object) {
final MatchResource matchResource = (MatchResource)object;
final String leftURI = matchResource.getLeftURI();
final String rightURI = matchResource.getRightURI();
final String commonBase = getCommonBase(leftURI, rightURI);
String text = ""; //$NON-NLS-1$
if (leftURI != null) {
text += leftURI.substring(commonBase.length());
}
text += " <-> "; //$NON-NLS-1$
if (rightURI != null) {
text += rightURI.substring(commonBase.length());
}
if (matchResource.eContainer() instanceof Comparison
&& ((Comparison)matchResource.eContainer()).isThreeWay()) {
final String originURI = matchResource.getOriginURI();
text += " (" + originURI.substring(commonBase.length()) + ")"; //$NON-NLS-1$ //$NON-NLS-2$
}
return text;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.provider.MatchResourceItemProvider#getImage(java.lang.Object)
*/
@Override
public Object getImage(Object object) {
final MatchResource matchResource = (MatchResource)object;
Resource resource = matchResource.getLeft();
if (resource == null) {
resource = matchResource.getRight();
if (resource == null) {
resource = matchResource.getOrigin();
}
}
if (resource != null) {
IItemLabelProvider itemLabelProvider = (IItemLabelProvider)getRootAdapterFactory().adapt(
resource, IItemLabelProvider.class);
Object image = itemLabelProvider.getImage(resource);
if (image != null) {
return image;
} else {
return super.getImage(object);
}
} else {
return super.getImage(object);
}
}
/**
* Returns the longest common starting substring of the two given strings.
*
* @param left
* First of the two strings for which we need the common starting substring.
* @param right
* Second of the two strings for which we need the common starting substring.
* @return The longest common starting substring of the two given strings.
*/
public String getCommonBase(String left, String right) {
if (left == null || right == null) {
return ""; //$NON-NLS-1$
}
final char[] leftChars = left.toCharArray();
final char[] rightChars = right.toCharArray();
final StringBuilder buffer = new StringBuilder();
StringBuilder fragmentBuffer = new StringBuilder();
for (int i = 0; i < Math.min(leftChars.length, rightChars.length); i++) {
if (leftChars[i] == rightChars[i]) {
fragmentBuffer.append(leftChars[i]);
if (leftChars[i] == '\\' || leftChars[i] == '/') {
buffer.append(fragmentBuffer);
fragmentBuffer = new StringBuilder();
}
} else {
break;
}
}
return buffer.toString();
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.provider.IItemStyledLabelProvider#getStyledText(java.lang.Object)
*/
public IStyledString.IComposedStyledString getStyledText(Object object) {
return new ComposedStyledString(getText(object));
}
}
|
