bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/contributor/imager/ImageDecoratorContributorImpl.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.browsing.ui.graph.impl.contributor.imager;\r
  13 \r
  14 import org.simantics.browsing.ui.BuiltinKeys;\r
  15 import org.simantics.browsing.ui.BuiltinKeys.ImageDecoratorKey;\r
  16 import org.simantics.browsing.ui.NodeContext;\r
  17 import org.simantics.browsing.ui.PrimitiveQueryUpdater;\r
  18 import org.simantics.browsing.ui.Tester;\r
  19 import org.simantics.browsing.ui.content.Contributor;\r
  20 import org.simantics.browsing.ui.content.ImageDecorator;\r
  21 import org.simantics.browsing.ui.content.ImageDecoratorFactory;\r
  22 import org.simantics.browsing.ui.graph.impl.contribution.ImageDecoratorContributionImpl;\r
  23 import org.simantics.db.ReadGraph;\r
  24 import org.simantics.db.exception.DatabaseException;\r
  25 import org.simantics.utils.ReflectionUtils;\r
  26 \r
  27 /**\r
  28  * @author Tuukka Lehtonen\r
  29  *\r
  30  * @param <T>\r
  31  */\r
  32 public abstract class ImageDecoratorContributorImpl<T> implements Contributor<ImageDecoratorFactory> {\r
  33 \r
  34     abstract public ImageDecorator getDecorator(ReadGraph graph, T input) throws DatabaseException;\r
  35 \r
  36     final private Class<?> clazz;\r
  37 \r
  38     @Override\r
  39     public Tester getNodeContextTester() {\r
  40         return null;\r
  41     }\r
  42 \r
  43     public ImageDecoratorContributorImpl() {\r
  44         clazz = ReflectionUtils.getSingleParameterType(getClass());\r
  45     }\r
  46 \r
  47     public ImageDecoratorContributorImpl(Class<?> clazz) {\r
  48         this.clazz = clazz;\r
  49     }\r
  50 \r
  51     @Override\r
  52     public ImageDecoratorFactory getFactory() {\r
  53 \r
  54         return new ImageDecoratorFactory() {\r
  55 \r
  56             @Override\r
  57             public ImageDecorator create(final PrimitiveQueryUpdater updater, NodeContext context, ImageDecoratorKey key) {\r
  58 \r
  59                 return new ImageDecoratorContributionImpl(updater, context, key) {\r
  60 \r
  61                     @SuppressWarnings("unchecked")\r
  62                     @Override\r
  63                     public ImageDecorator getDecorator(ReadGraph graph, NodeContext context) throws DatabaseException {\r
  64 \r
  65                         T input = (T)context.getConstant(BuiltinKeys.INPUT);\r
  66 \r
  67                         return ImageDecoratorContributorImpl.this.getDecorator(graph, input);\r
  68 \r
  69                     }\r
  70 \r
  71                 };\r
  72 \r
  73             }\r
  74 \r
  75         };\r
  76 \r
  77     }\r
  78 \r
  79     @Override\r
  80     public Class<?> getInputClass() {\r
  81         return clazz;\r
  82     }\r
  83 \r
  84 }\r