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