Migrated source code from Simantics SVN

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

diff --git a/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/DefaultSelectedImagerProcessor.java b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/DefaultSelectedImagerProcessor.java
new file mode 100644 (file)
index 0000000..4118d94
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/DefaultSelectedImagerProcessor.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.Collection;\r
+\r
+import org.eclipse.swt.graphics.Image;\r
+import org.simantics.browsing.ui.BuiltinKeys;\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.imagers.ImageURLs;\r
+import org.simantics.browsing.ui.common.processors.AbstractNodeQueryProcessor;\r
+import org.simantics.browsing.ui.content.Imager;\r
+import org.simantics.browsing.ui.content.ImagerFactory;\r
+\r
+public class DefaultSelectedImagerProcessor extends AbstractNodeQueryProcessor<Imager> {\r
+\r
+    public DefaultSelectedImagerProcessor() {\r
+    }\r
+\r
+    @Override\r
+    public QueryKey<Imager> getIdentifier() {\r
+        return BuiltinKeys.SELECTED_IMAGER;\r
+    }\r
+\r
+    @Override\r
+    public Imager query(NodeQueryManager manager, NodeContext context) {\r
+\r
+        Collection<ImagerFactory> imagers = manager.query(context, BuiltinKeys.IMAGER_FACTORIES);\r
+        if (imagers.isEmpty()) {\r
+\r
+            Imager imager = (Imager) context.getAdapter(Imager.class);\r
+            if (imager != null)\r
+                return imager;\r
+            ImageURLs urls = (ImageURLs) context.getAdapter(ImageURLs.class);\r
+            if (urls != null) {\r
+                return new ImageURLsImager<Image>(urls);\r
+            } else {\r
+                return new NullImager();\r
+            }\r
+        }\r
+\r
+        // TODO: use SelectedLabelerFactory query instead of this educated choice\r
+        ImagerFactory factory = imagers.iterator().next();\r
+\r
+        return manager.query(context, new BuiltinKeys.ImagerKey(factory));\r
+\r
+    }\r
+\r
+    @Override\r
+    public String toString() {\r
+        return "SelectedLabelerProcessor";\r
+    }\r
+\r
+}
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