bundles/org.simantics.ui/src/org/simantics/ui/colors/RGBAdapter.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2011 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.ui.colors;
  13
  14 import org.eclipse.swt.graphics.RGB;
  15 import org.simantics.databoard.Bindings;
  16 import org.simantics.databoard.binding.Binding;
  17 import org.simantics.db.AsyncReadGraph;
  18 import org.simantics.db.Resource;
  19 import org.simantics.db.common.adaption.ResourceAdapter;
  20 import org.simantics.db.procedure.AsyncProcedure;
  21
  22 public class RGBAdapter implements ResourceAdapter<RGB> {
  23
  24     public static class RGBDouble {
  25         public double red;
  26         public double green;
  27         public double blue;
  28     }
  29
  30     public static final Binding BINDING = Bindings.getBindingUnchecked(RGBDouble.class);
  31
  32     @Override
  33     public void adapt(AsyncReadGraph g, Resource source, Resource r, final AsyncProcedure<RGB> procedure) {
  34         g.forValue(r, BINDING, new AsyncProcedure<RGBDouble>() {
  35             @Override
  36             public void execute(AsyncReadGraph graph, RGBDouble result) {
  37                 procedure.execute(graph,
  38                         new RGB(
  39                                 (int)(result.red*255.0),
  40                                 (int)(result.green*255.0),
  41                                 (int)(result.blue*255.0)
  42                         )
  43                 );
  44             }
  45
  46             @Override
  47             public void exception(AsyncReadGraph graph, Throwable throwable) {
  48                 procedure.exception(graph, throwable);
  49             }
  50         });
  51     }
  52
  53 }