Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.swt / src / org / simantics / browsing / ui / swt / DefaultLabelDecoratorsProcessor.java

diff --git a/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/DefaultLabelDecoratorsProcessor.java b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/DefaultLabelDecoratorsProcessor.java
new file mode 100644 (file)
index 0000000..a766d8d
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/DefaultLabelDecoratorsProcessor.java
@@ -0,0 +1,65 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.browsing.ui.swt;\r
+\r
+import java.util.ArrayList;\r
+import java.util.Collection;\r
+import java.util.Collections;\r
+\r
+import org.eclipse.swt.SWT;\r
+import org.simantics.browsing.ui.BuiltinKeys;\r
+import org.simantics.browsing.ui.BuiltinKeys.LabelDecoratorKey;\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.NodeContext.QueryKey;\r
+import org.simantics.browsing.ui.NodeQueryManager;\r
+import org.simantics.browsing.ui.common.processors.AbstractNodeQueryProcessor;\r
+import org.simantics.browsing.ui.content.LabelDecorator;\r
+import org.simantics.browsing.ui.content.LabelDecoratorFactory;\r
+\r
+public class DefaultLabelDecoratorsProcessor extends AbstractNodeQueryProcessor<Collection<LabelDecorator>> {\r
+\r
+    @Override\r
+    public Collection<LabelDecorator> query(NodeQueryManager manager, NodeContext context) {\r
+        Collection<LabelDecoratorFactory> factories = manager.query(context, BuiltinKeys.SELECTED_LABEL_DECORATOR_FACTORIES);\r
+        if (factories.isEmpty()) {\r
+            LabelDecorator truncation = new TreeTruncationDecoratorFactory(SWT.BOLD).create(manager, context);\r
+            if (truncation != null)\r
+                return Collections.singletonList(truncation);\r
+            return Collections.emptyList();\r
+        }\r
+\r
+        Collection<LabelDecorator> decorators = new ArrayList<LabelDecorator>(factories.size() + 1);\r
+        for (LabelDecoratorFactory f : factories) {\r
+            assert f != null;\r
+            LabelDecorator decorator = manager.query(context, new LabelDecoratorKey(f));\r
+            if (decorator != null)\r
+                decorators.add(decorator);\r
+        }\r
+\r
+        LabelDecorator truncation = new TreeTruncationDecoratorFactory(SWT.BOLD).create(manager, context);\r
+        if (truncation != null)\r
+            decorators.add(truncation);\r
+\r
+        return decorators;\r
+    }\r
+\r
+    @Override\r
+    public String toString() {\r
+        return "LabelDecoratorsProcessor";\r
+    }\r
+\r
+    @Override\r
+    public QueryKey<Collection<LabelDecorator>> getIdentifier() {\r
+        return BuiltinKeys.LABEL_DECORATORS;\r
+    }\r
+\r
+}\r