bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/ArrayPropertyImagerFactory.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.swt;
  13
  14 import org.eclipse.jface.resource.ImageDescriptor;
  15 import org.simantics.browsing.ui.BuiltinKeys;
  16 import org.simantics.browsing.ui.BuiltinKeys.ImagerKey;
  17 import org.simantics.browsing.ui.DataSource;
  18 import org.simantics.browsing.ui.NodeContext;
  19 import org.simantics.browsing.ui.PrimitiveQueryUpdater;
  20 import org.simantics.browsing.ui.common.ColumnKeys;
  21 import org.simantics.browsing.ui.common.imagers.ContainerImager;
  22 import org.simantics.browsing.ui.common.property.IArrayProperty;
  23 import org.simantics.browsing.ui.content.Imager;
  24 import org.simantics.browsing.ui.content.ImagerFactory;
  25 import org.simantics.db.ReadGraph;
  26 import org.simantics.db.Resource;
  27 import org.simantics.db.exception.DatabaseException;
  28 import org.simantics.ui.icons.ImageUtil;
  29 import org.simantics.utils.ui.BundleUtils;
  30
  31 /**
  32  * A basic imager factory with support for both Resource and IArrayProperty.
  33  *
  34  * @author Tuukka Lehtonen
  35  */
  36 public class ArrayPropertyImagerFactory implements ImagerFactory {
  37
  38     @SuppressWarnings("unchecked")
  39     @Override
  40     public Imager create(final PrimitiveQueryUpdater updater, final NodeContext context, final ImagerKey key) {
  41         assert updater != null;
  42         assert context != null;
  43
  44         @SuppressWarnings("rawtypes")
  45         final ContainerImager result = new ContainerImager();
  46         final DataSource<ReadGraph> source = updater.getDataSource(ReadGraph.class);
  47         if (source == null)
  48             return result;
  49
  50         Object o = context.getConstant(BuiltinKeys.INPUT);
  51         if (o instanceof IArrayProperty) {
  52             IArrayProperty prop = (IArrayProperty) o;
  53
  54             if (prop.getRange().size() > 1) {
  55                 // Only show the segment image for non-single-item slices of the
  56                 // property root node. Otherwise just use the image resolved
  57                 // through normal means.
  58                 if (prop.isSlice()) {
  59                     result.setImage(ColumnKeys.PROPERTY,
  60                             BundleUtils.getImageDescriptorFromPlugin(
  61                                     "org.simantics.browsing.ui.common", "/icons/segment_edit.gif"));
  62                     return result;
  63                 }
  64             } else {
  65                 // No image for single-item slices of the property.
  66                 return result;
  67             }
  68         }
  69
  70         final Resource inputResource = (Resource) context.getAdapter(Resource.class);
  71         if (inputResource == null)
  72             return result;
  73
  74         source.schedule(graph -> {
  75             ImageDescriptor descriptor;
  76             try {
  77                 descriptor = ImageUtil.adaptImageDescriptor(graph, inputResource);
  78                 result.setImage(ColumnKeys.PROPERTY, descriptor);
  79                 updater.scheduleReplace(context, key, result);
  80             } catch (DatabaseException e) {
  81                 e.printStackTrace();
  82             }
  83         });
  84
  85         return result;
  86     }
  87
  88 }