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

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.browsing.ui.graph.impl.contributor.imager;
  13
  14 import java.util.Map;
  15
  16 import org.eclipse.jface.resource.ImageDescriptor;
  17 import org.simantics.browsing.ui.BuiltinKeys;
  18 import org.simantics.browsing.ui.BuiltinKeys.ImagerKey;
  19 import org.simantics.browsing.ui.NodeContext;
  20 import org.simantics.browsing.ui.PrimitiveQueryUpdater;
  21 import org.simantics.browsing.ui.Tester;
  22 import org.simantics.browsing.ui.common.ColumnKeys;
  23 import org.simantics.browsing.ui.content.Contributor;
  24 import org.simantics.browsing.ui.content.Imager;
  25 import org.simantics.browsing.ui.content.ImagerFactory;
  26 import org.simantics.browsing.ui.graph.impl.contribution.ImagerContributionImpl;
  27 import org.simantics.db.ReadGraph;
  28 import org.simantics.db.exception.DatabaseException;
  29 import org.simantics.utils.ReflectionUtils;
  30 import org.simantics.utils.datastructures.ArrayMap;
  31
  32 abstract public class ImagerContributorImpl<T> implements Contributor<ImagerFactory> {
  33
  34     abstract public ImageDescriptor getDescriptor(ReadGraph graph, T input) throws DatabaseException;
  35
  36     final private Class<?> clazz;
  37
  38     @Override
  39     public String toString() {
  40         return getClass().getName();
  41     }
  42
  43     @Override
  44     public Tester getNodeContextTester() {
  45         return null;
  46     }
  47
  48     public ImagerContributorImpl() {
  49         clazz = ReflectionUtils.getSingleParameterType(getClass());
  50     }
  51
  52     public ImagerContributorImpl(Class<?> clazz) {
  53         this.clazz = clazz;
  54     }
  55
  56     @Override
  57     public ImagerFactory getFactory() {
  58
  59         return new ImagerFactory() {
  60
  61             @Override
  62             public String toString() {
  63                 return ImagerContributorImpl.this.toString();
  64             }
  65
  66             @SuppressWarnings("unchecked")
  67             @Override
  68             public Imager create(final PrimitiveQueryUpdater updater, NodeContext context, final ImagerKey key) {
  69
  70                 return new ImagerContributionImpl(updater, context, key) {
  71
  72                     @Override
  73                     public Map<String, ImageDescriptor> getDescriptors(ReadGraph graph, NodeContext context) throws DatabaseException {
  74
  75                         T input = (T)context.getConstant(BuiltinKeys.INPUT);
  76
  77                         ImageDescriptor value = ImagerContributorImpl.this.getDescriptor(graph, input);
  78
  79                         return new ArrayMap<String, ImageDescriptor>(ColumnKeys.KEYS_SINGLE,
  80                                 new ImageDescriptor[] { value });
  81
  82                     }
  83
  84                 };
  85
  86             }
  87
  88         };
  89
  90     }
  91
  92     @Override
  93     public Class<?> getInputClass() {
  94         return clazz;
  95     }
  96
  97 }