Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.model / src / org / simantics / browsing / ui / model / modifiers / ModifierContribution.java

diff --git a/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/modifiers/ModifierContribution.java b/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/modifiers/ModifierContribution.java
new file mode 100644 (file)
index 0000000..60cb47e
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/modifiers/ModifierContribution.java
@@ -0,0 +1,48 @@
+/*******************************************************************************\r
+ * Copyright (c) 2010, 2011 Association for Decentralized Information Management in\r
+ * 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.model.modifiers;\r
+\r
+import org.simantics.browsing.ui.BuiltinKeys;\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.content.Labeler.Modifier;\r
+import org.simantics.browsing.ui.content.Labeler.DeniedModifier;\r
+import org.simantics.browsing.ui.model.InvalidContribution;\r
+import org.simantics.browsing.ui.model.nodetypes.NodeType;\r
+import org.simantics.browsing.ui.model.tests.Test;\r
+import org.simantics.browsing.ui.model.visuals.VisualsContribution;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.exception.DatabaseException;\r
+\r
+public class ModifierContribution extends VisualsContribution {\r
+    ModifierRule modifierRule;\r
+    \r
+    public ModifierContribution(NodeType nodeType, Test test, ModifierRule modifierRule, double priority) throws InvalidContribution {\r
+        super(nodeType, test, priority);\r
+        if(!modifierRule.isCompatible(\r
+                nodeType.getContentType()\r
+                ))\r
+            throw new InvalidContribution("Label rule is not compatible with the content type.");\r
+        this.modifierRule = modifierRule;\r
+    }\r
+       \r
+    public Modifier getModifier(ReadGraph graph, NodeContext context, String columnKey) {\r
+        Object content = context.getConstant(BuiltinKeys.INPUT);\r
+        try {\r
+            if(test == null || test.test(graph, content))            \r
+                return modifierRule.getModifier(graph, content, columnKey);\r
+            else\r
+                return null;\r
+        } catch(DatabaseException e) {\r
+               return new DeniedModifier(e.getMessage());\r
+        }\r
+    }    \r
+}\r