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1
17 package org.eclipse.emf.mapping.presentation;
18
19
20 import java.util.Collection  ;
21 import java.util.HashMap ;
22
23 import org.eclipse.jface.resource.CompositeImageDescriptor;
24 import org.eclipse.swt.graphics.Image;
25 import org.eclipse.swt.graphics.ImageData;
26 import org.eclipse.swt.graphics.Point;
27
28 import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
29 import org.eclipse.emf.mapping.MappingPlugin;
30 import org.eclipse.emf.mapping.domain.AdapterFactoryMappingDomain;
31 import org.eclipse.emf.mapping.provider.MappedObjectItemProvider;
32
33
34 public class MappingDomainLabelProvider extends AdapterFactoryLabelProvider
35 {
36 static class Key
37 {
38 public Image mainImage;
39 public Image overlayImage;
40 public Key (Image mainImage, Image overlayImage)
41 {
42 this.mainImage = mainImage;
43 this.overlayImage = overlayImage;
44 }
45
46 public int hashCode()
47 {
48 return mainImage.hashCode() + overlayImage.hashCode();
49 }
50
51 public boolean equals(Object object)
52 {
53 if (object instanceof Key)
54 {
55 Key key = (Key)object;
56 return key.mainImage == mainImage && key.overlayImage == overlayImage;
57 }
58 else
59 {
60 return false;
61 }
62 }
63 }
64
65 protected static HashMap images = new HashMap ();
66
67 protected AdapterFactoryMappingDomain mappingDomain;
68
69 public MappingDomainLabelProvider(AdapterFactoryMappingDomain mappingDomain)
70 {
71 super(mappingDomain.getAdapterFactory());
72 this.mappingDomain = mappingDomain;
73 }
74
75 class MappingIndicatorCompositeImage extends CompositeImageDescriptor
76 {
77 protected ImageData mainImage;
78 protected ImageData overlayImage;
79 public MappingIndicatorCompositeImage(ImageData mainImage, ImageData overlayImage)
80 {
81 this.mainImage = mainImage;
82 this.overlayImage = overlayImage;
83 }
84
85 public void drawCompositeImage(int width, int height)
86 {
87 drawImage(mainImage, 0, 0);
88 drawImage(overlayImage, mainImage.width, 0);
89 }
90
91 public Point getSize()
92 {
93 return new Point(mainImage.width + overlayImage.width, Math.max(mainImage.height, overlayImage.height));
94 }
95
96 public int hashCode()
97 {
98 return mainImage.hashCode() + overlayImage.hashCode();
99 }
100
101 public boolean equals(Object object)
102 {
103 if (object instanceof MappingIndicatorCompositeImage)
104 {
105 MappingIndicatorCompositeImage that = (MappingIndicatorCompositeImage)object;
106 return that.mainImage == mainImage && that.overlayImage == overlayImage;
107 }
108 else
109 {
110 return false;
111 }
112 }
113 }
114
115 public Image getImage(Object object)
116 {
117 Image result = super.getImage(object);
118
119 if (result != null)
120 {
121 Object overlayImage;
122
123 Object mappedObject =
124 object instanceof MappedObjectItemProvider ?
125 ((MappedObjectItemProvider)object).getMappedObject() :
126 object;
127
128 Collection mappings = mappingDomain.getMappingRoot().getMappings(mappedObject);
129
130 if (mappingDomain.getMappingRoot().isTopObject(mappedObject))
131 {
132 overlayImage =
133 MappingPlugin.getPlugin().getImage(mappings.isEmpty() ? "full/ovr16/OverlayBlank" : "full/ovr16/OverlayMappedTop");
134 }
135 else if (mappingDomain.getMappingRoot().isBottomObject(mappedObject))
136 {
137 overlayImage =
138 MappingPlugin.getPlugin().getImage(mappings.isEmpty() ? "full/ovr16/OverlayBlank" : "full/ovr16/OverlayMappedBottom");
139 }
140 else
141 {
142 overlayImage= MappingPlugin.getPlugin().getImage("full/ovr16/OverlayBlank");
143 }
144
145 Image image = getImageFromObject(overlayImage);
146 Key key = new Key(result, image);
147 Image cachedImage = (Image)images.get(key);
148 if (cachedImage == null)
149 {
150 result = new MappingIndicatorCompositeImage(result.getImageData(), image.getImageData()).createImage();
151 images.put(key, result);
152 }
153 else
154 {
155 result = cachedImage;
156 }
157 }
158
159 return result;
160 }
161 }
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