X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.browsing.ui.model%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fmodel%2Fimagedecorators%2FImageDecorationContribution.java;fp=bundles%2Forg.simantics.browsing.ui.model%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fmodel%2Fimagedecorators%2FImageDecorationContribution.java;h=1b035b4bb7449c017ac58360b201b323a5f833f3;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/imagedecorators/ImageDecorationContribution.java b/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/imagedecorators/ImageDecorationContribution.java
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+/*******************************************************************************
+ * Copyright (c) 2010, 2011 Association for Decentralized Information Management in
+ * Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.browsing.ui.model.imagedecorators;
+
+import org.simantics.browsing.ui.BuiltinKeys;
+import org.simantics.browsing.ui.NodeContext;
+import org.simantics.browsing.ui.content.ImageDecorator;
+import org.simantics.browsing.ui.model.InvalidContribution;
+import org.simantics.browsing.ui.model.nodetypes.NodeType;
+import org.simantics.browsing.ui.model.tests.Test;
+import org.simantics.browsing.ui.model.visuals.VisualsContribution;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.exception.DatabaseException;
+
+/**
+ * Produces image decorators for nodes of given node type.
+ * @author Hannu Niemistö
+ */
+public class ImageDecorationContribution extends VisualsContribution {
+    ImageDecorationRule imageDecorationRule;
+    
+    public ImageDecorationContribution(NodeType nodeType, Test test, ImageDecorationRule imageDecorationRule, double priority) throws InvalidContribution {
+        super(nodeType, test, priority);
+        if(!imageDecorationRule.isCompatible(
+                nodeType.getContentType()
+                ))
+            throw new InvalidContribution("Image decoration rule is not compatible with the content type.");
+        this.imageDecorationRule = imageDecorationRule;
+    }
+       
+    /**
+     * Returns an image decorator for the node or null, if contribution is
+     * not suitable for the input.
+     */
+    public ImageDecorator getImageDecorator(ReadGraph graph, NodeContext context) {
+        Object content = context.getConstant(BuiltinKeys.INPUT);
+        try {
+            if(test == null || test.test(graph, content))
+                return imageDecorationRule.getImageDecorator(graph, content);
+            else
+                return null;
+        } catch(DatabaseException e) {
+            // TODO reconsider
+            return null;
+        }
+    }    
+}