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.group = graph.adapt(group, Group.class);
  48     }
  49
  50     @Override
  51     public void activate(RequestProcessor processor, final Resource runtimeDiagram, final EvaluationContext observer) {
  52
  53         try {
  54             processor.syncRequest(new ReadRequest() {
  55
  56                 @Override
  57                 public void run(ReadGraph graph) throws DatabaseException {
  58
  59                     GroupStyleProfileEntry.this.style.activate(graph, runtimeDiagram, entry, GroupStyleProfileEntry.this.group, observer);
  60
  61                 }
  62
  63             });
  64
  65             active = true;
  66
  67         } catch (DatabaseException e) {
  68             ErrorLogger.defaultLogError(e);
  69         }
  70     }
  71
  72     @Override
  73     public void deactivate(Resource diagram, EvaluationContext observer) {
  74         if (style == null) {
  75             System.out.println("GroupStyleProfileEntry has null style!");
  76             return;
  77         }
  78
  79         style.deactivate(diagram, entry, group, observer);
  80         active = false;
  81     }
  82
  83     @Override
  84     public void apply(EvaluationContext observer) {
  85         if (style == null) {
  86             System.out.println("GroupStyleProfileEntry has null style!");
  87             return;
  88         }
  89         style.apply(entry, group, observer);
  90     }
  91
  92     @Override
  93     public int hashCode() {
  94         return entry.hashCode();
  95     }
  96
  97     @Override
  98     public boolean equals(Object object) {
  99         if (this == object)
 100             return true;
 101         else if (object == null)
 102             return false;
 103         else if (GroupStyleProfileEntry.class != object.getClass())
 104             return false;
 105         GroupStyleProfileEntry other = (GroupStyleProfileEntry)object;
 106         return entry.equals(other.entry);
 107     }
 108
 109     @Override
 110     public String toString() {
 111         return "" + style + " applied to " + group;
 112     }
 113
 114     @Override
 115     public boolean isActive() {
 116         return active;
 117     }
 118
 119     @Override
 120     public double getPriority() {
 121         return priority;
 122     }
 123
 124 }