Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.document.linking.ui / src / org / simantics / document / linking / ge / VariableImageDecorationRule.java

diff --git a/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/ge/VariableImageDecorationRule.java b/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/ge/VariableImageDecorationRule.java
new file mode 100644 (file)
index 0000000..372b8c1
--- /dev/null
+++ b/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/ge/VariableImageDecorationRule.java
@@ -0,0 +1,64 @@
+package org.simantics.document.linking.ge;\r
+\r
+import org.eclipse.jface.resource.ImageDescriptor;\r
+import org.eclipse.jface.viewers.IDecoration;\r
+import org.simantics.browsing.ui.content.ImageDecorator;\r
+import org.simantics.browsing.ui.model.imagedecorators.ImageDecorationRule;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.variable.Variable;\r
+import org.simantics.document.DocumentResource;\r
+import org.simantics.document.linking.Activator;\r
+import org.simantics.document.linking.ontology.DocumentLink;\r
+import org.simantics.document.linking.utils.SourceLinkUtil;\r
+import org.simantics.utils.ui.gfx.DecorationOverlayIcon;\r
+\r
+public class VariableImageDecorationRule implements ImageDecorationRule{\r
+       \r
+       @Override\r
+       public boolean isCompatible(Class<?> contentType) {\r
+               return contentType.equals(Variable.class);\r
+       }\r
+       \r
+       @Override\r
+       public ImageDecorator getImageDecorator(ReadGraph graph, Object content)\r
+                       throws DatabaseException {\r
+               Variable v = (Variable)content;\r
+               Resource r = v.getPossibleRepresents(graph);\r
+               if (r == null)\r
+                       return null;\r
+               \r
+               DocumentLink sl = DocumentLink.getInstance(graph);\r
+               DocumentResource doc = DocumentResource.getInstance(graph);\r
+               \r
+               if (graph.isInstanceOf(r, sl.Source)) {\r
+                       Resource reference = SourceLinkUtil.getReferredDocument(graph, r);\r
+                       if (reference != null) {\r
+                               if (graph.hasStatement(reference,doc.HasNewerVersion))\r
+                                       return new Dec(Activator.getDefault().clock_red);\r
+                       } else {\r
+                               return new Dec(Activator.getDefault().cross);\r
+                       }\r
+               }\r
+               return null;\r
+       }\r
+       \r
+       private class Dec implements ImageDecorator {\r
+               private ImageDescriptor decorator;\r
+               \r
+               public Dec(ImageDescriptor decorator) {\r
+                       this.decorator = decorator;\r
+               }\r
+               @SuppressWarnings("unchecked")\r
+               public <Image extends Object> Image decorateImage(Image image, String column, int itemIndex) {\r
+                       return (Image) getDecoration((ImageDescriptor) image,decorator);\r
+               };\r
+       }\r
+       \r
+       private ImageDescriptor getDecoration(ImageDescriptor original, ImageDescriptor decorator) {\r
+        return (original == null) ? decorator:\r
+            new DecorationOverlayIcon(original, decorator, IDecoration.BOTTOM_RIGHT);\r
+    }\r
+\r
+}\r