bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/GroupStyleProfileEntry.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.diagram.adapter;
  13
  14 import org.simantics.db.ReadGraph;
  15 import org.simantics.db.RequestProcessor;
  16 import org.simantics.db.Resource;
  17 import org.simantics.db.common.request.ReadRequest;
  18 import org.simantics.db.exception.DatabaseException;
  19 import org.simantics.diagram.stubs.DiagramResource;
  20 import org.simantics.scenegraph.profile.EvaluationContext;
  21 import org.simantics.scenegraph.profile.Group;
  22 import org.simantics.scenegraph.profile.ProfileEntry;
  23 import org.simantics.scenegraph.profile.Style;
  24 import org.simantics.utils.ui.ErrorLogger;
  25
  26 public class GroupStyleProfileEntry implements ProfileEntry {
  27
  28     private final Resource entry;
  29     private boolean        active = false;
  30
  31     private Style          style;
  32     private Group          group;
  33     private double         priority;
  34
  35     public GroupStyleProfileEntry(ReadGraph graph, Resource entry) throws DatabaseException {
  36         this.entry = entry;
  37
  38         DiagramResource dr = DiagramResource.getInstance(graph);
  39         Resource style = graph.getPossibleObject(entry, dr.ProfileEntry_HasStyle);
  40         Resource group = graph.getPossibleObject(entry, dr.ProfileEntry_HasGroup);
  41
  42         Double priority = graph.getPossibleRelatedValue(entry, dr.ProfileEntry_HasPriority);
  43         if(priority != null) this.priority = priority;
  44         else this.priority = 0;
  45
  46         GroupStyleProfileEntry.this.style = graph.adapt(style, Style.class);
  47         GroupStyleProfileEntry.this.style.setPriority(this.priority);
  48         GroupStyleProfileEntry.this.group = graph.adapt(group, Group.class);
  49     }
  50
  51     @Override
  52     public void activate(RequestProcessor processor, final Resource runtimeDiagram, final EvaluationContext observer) {
  53
  54         try {
  55             processor.syncRequest(new ReadRequest() {
  56
  57                 @Override
  58                 public void run(ReadGraph graph) throws DatabaseException {
  59
  60                     GroupStyleProfileEntry.this.style.activate(graph, runtimeDiagram, entry, GroupStyleProfileEntry.this.group, observer);
  61
  62                 }
  63
  64             });
  65
  66             active = true;
  67
  68         } catch (DatabaseException e) {
  69             ErrorLogger.defaultLogError(e);
  70         }
  71     }
  72
  73     @Override
  74     public void deactivate(Resource diagram, EvaluationContext observer) {
  75         if (style == null) {
  76             System.out.println("GroupStyleProfileEntry has null style!");
  77             return;
  78         }
  79
  80         style.deactivate(diagram, entry, group, observer);
  81         active = false;
  82     }
  83
  84     @Override
  85     public void apply(EvaluationContext observer) {
  86         if (style == null) {
  87             System.out.println("GroupStyleProfileEntry has null style!");
  88             return;
  89         }
  90         style.apply(entry, group, observer);
  91     }
  92
  93     @Override
  94     public int hashCode() {
  95         return entry.hashCode();
  96     }
  97
  98     @Override
  99     public boolean equals(Object object) {
 100         if (this == object)
 101             return true;
 102         else if (object == null)
 103             return false;
 104         else if (GroupStyleProfileEntry.class != object.getClass())
 105             return false;
 106         GroupStyleProfileEntry other = (GroupStyleProfileEntry)object;
 107         return entry.equals(other.entry);
 108     }
 109
 110     @Override
 111     public String toString() {
 112         return "" + style + " applied to " + group;
 113     }
 114
 115     @Override
 116     public boolean isActive() {
 117         return active;
 118     }
 119
 120     @Override
 121     public double getPriority() {
 122         return priority;
 123     }
 124
 125 }