bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/contributor/imager/ImagerContributorImpl.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 java.util.Map;\r
  15 \r
  16 import org.eclipse.jface.resource.ImageDescriptor;\r
  17 import org.simantics.browsing.ui.BuiltinKeys;\r
  18 import org.simantics.browsing.ui.BuiltinKeys.ImagerKey;\r
  19 import org.simantics.browsing.ui.NodeContext;\r
  20 import org.simantics.browsing.ui.PrimitiveQueryUpdater;\r
  21 import org.simantics.browsing.ui.Tester;\r
  22 import org.simantics.browsing.ui.common.ColumnKeys;\r
  23 import org.simantics.browsing.ui.content.Contributor;\r
  24 import org.simantics.browsing.ui.content.Imager;\r
  25 import org.simantics.browsing.ui.content.ImagerFactory;\r
  26 import org.simantics.browsing.ui.graph.impl.contribution.ImagerContributionImpl;\r
  27 import org.simantics.db.ReadGraph;\r
  28 import org.simantics.db.exception.DatabaseException;\r
  29 import org.simantics.utils.ReflectionUtils;\r
  30 import org.simantics.utils.datastructures.ArrayMap;\r
  31 \r
  32 abstract public class ImagerContributorImpl<T> implements Contributor<ImagerFactory> {\r
  33 \r
  34     abstract public ImageDescriptor getDescriptor(ReadGraph graph, T input) throws DatabaseException;\r
  35 \r
  36     final private Class<?> clazz;\r
  37 \r
  38     @Override\r
  39     public String toString() {\r
  40         return getClass().getName();\r
  41     }\r
  42 \r
  43     @Override\r
  44     public Tester getNodeContextTester() {\r
  45         return null;\r
  46     }\r
  47 \r
  48     public ImagerContributorImpl() {\r
  49         clazz = ReflectionUtils.getSingleParameterType(getClass());\r
  50     }\r
  51 \r
  52     public ImagerContributorImpl(Class<?> clazz) {\r
  53         this.clazz = clazz;\r
  54     }\r
  55 \r
  56     @Override\r
  57     public ImagerFactory getFactory() {\r
  58 \r
  59         return new ImagerFactory() {\r
  60 \r
  61             @Override\r
  62             public String toString() {\r
  63                 return ImagerContributorImpl.this.toString();\r
  64             }\r
  65 \r
  66             @SuppressWarnings("unchecked")\r
  67             @Override\r
  68             public Imager create(final PrimitiveQueryUpdater updater, NodeContext context, final ImagerKey key) {\r
  69 \r
  70                 return new ImagerContributionImpl(updater, context, key) {\r
  71 \r
  72                     @Override\r
  73                     public Map<String, ImageDescriptor> getDescriptors(ReadGraph graph, NodeContext context) throws DatabaseException {\r
  74 \r
  75                         T input = (T)context.getConstant(BuiltinKeys.INPUT);\r
  76 \r
  77                         ImageDescriptor value = ImagerContributorImpl.this.getDescriptor(graph, input);\r
  78 \r
  79                         return new ArrayMap<String, ImageDescriptor>(ColumnKeys.KEYS_SINGLE,\r
  80                                 new ImageDescriptor[] { value });\r
  81 \r
  82                     }\r
  83 \r
  84                 };\r
  85 \r
  86             }\r
  87 \r
  88         };\r
  89 \r
  90     }\r
  91 \r
  92     @Override\r
  93     public Class<?> getInputClass() {\r
  94         return clazz;\r
  95     }\r
  96 \r
  97 }\r