bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagram/SliderClassFactory.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.modeling.ui.diagram;\r
  13 \r
  14 import java.awt.geom.AffineTransform;\r
  15 import java.awt.geom.Rectangle2D;\r
  16 \r
  17 import org.simantics.databoard.Bindings;\r
  18 import org.simantics.db.AsyncReadGraph;\r
  19 import org.simantics.db.ReadGraph;\r
  20 import org.simantics.db.Resource;\r
  21 import org.simantics.db.Session;\r
  22 import org.simantics.db.WriteGraph;\r
  23 import org.simantics.db.common.primitiverequest.ValueImplied;\r
  24 import org.simantics.db.common.request.WriteRequest;\r
  25 import org.simantics.db.exception.DatabaseException;\r
  26 import org.simantics.db.exception.NoSingleResultException;\r
  27 import org.simantics.db.exception.ResourceNotFoundException;\r
  28 import org.simantics.db.layer0.adapter.StringModifier;\r
  29 import org.simantics.db.layer0.request.PossibleActiveValuation;\r
  30 import org.simantics.db.layer0.request.PossibleSessionValuation;\r
  31 import org.simantics.db.procedure.AsyncProcedure;\r
  32 import org.simantics.db.procedure.Listener;\r
  33 import org.simantics.diagram.G2DUtils;\r
  34 import org.simantics.diagram.adapter.SyncElementFactory;\r
  35 import org.simantics.diagram.elements.MonitorClass;\r
  36 import org.simantics.diagram.stubs.DiagramResource;\r
  37 import org.simantics.diagram.stubs.G2DResource;\r
  38 import org.simantics.diagram.synchronization.CompositeHintSynchronizer;\r
  39 import org.simantics.diagram.synchronization.IHintSynchronizer;\r
  40 import org.simantics.diagram.synchronization.SynchronizationHints;\r
  41 import org.simantics.diagram.synchronization.graph.DiagramGraphUtil;\r
  42 import org.simantics.diagram.synchronization.graph.ElementLoader;\r
  43 import org.simantics.diagram.synchronization.graph.MonitorSynchronizer;\r
  44 import org.simantics.diagram.synchronization.graph.TransformSynchronizer;\r
  45 import org.simantics.diagram.ui.DiagramModelHints;\r
  46 import org.simantics.g2d.canvas.ICanvasContext;\r
  47 import org.simantics.g2d.diagram.IDiagram;\r
  48 import org.simantics.g2d.diagram.handler.DataElementMap;\r
  49 import org.simantics.g2d.diagram.handler.Relationship;\r
  50 import org.simantics.g2d.diagram.handler.RelationshipHandler;\r
  51 import org.simantics.g2d.element.ElementClass;\r
  52 import org.simantics.g2d.element.ElementHints;\r
  53 import org.simantics.g2d.element.ElementUtils;\r
  54 import org.simantics.g2d.element.IElement;\r
  55 import org.simantics.g2d.element.handler.TextEditor;\r
  56 import org.simantics.g2d.element.handler.impl.StaticObjectAdapter;\r
  57 import org.simantics.layer0.Layer0;\r
  58 import org.simantics.modeling.ModelingResources;\r
  59 import org.simantics.modeling.ui.diagram.SliderClass.Range;\r
  60 import org.simantics.utils.strings.format.MetricsFormat;\r
  61 import org.simantics.utils.strings.format.MetricsFormatList;\r
  62 import org.simantics.utils.threads.ThreadUtils;\r
  63 \r
  64 public class SliderClassFactory extends SyncElementFactory {\r
  65 \r
  66     private static final IHintSynchronizer HINT_SYNCHRONIZER = new CompositeHintSynchronizer(MonitorSynchronizer.INSTANCE, TransformSynchronizer.INSTANCE);\r
  67 \r
  68     public static ElementClass createSliderClass(Resource elementClass) {\r
  69         // set "default scale" to no scaling, 1.0, 1.0\r
  70         return SliderClass.create(null, null, null, null, null, 1.0, 1.0, new StaticObjectAdapter(elementClass));\r
  71     }\r
  72 \r
  73     // staticScale{X,Y} define the scale of the static monitor image\r
  74     public static ElementClass createSliderClass(Resource elementClass, IElement parentElement, Range<Double> range, Double value, Object component, String suffix, double staticScaleX, double staticScaleY) {\r
  75         return SliderClass.create(parentElement, range, value, component, suffix, staticScaleX, staticScaleY, new StaticObjectAdapter(elementClass));\r
  76     }\r
  77 \r
  78     @Override\r
  79     public void load(ReadGraph g, final ICanvasContext canvas, final IDiagram diagram, final Resource element, final IElement e) throws DatabaseException {\r
  80 \r
  81         if(!g.hasStatement(element)) return;\r
  82 \r
  83         Layer0 l0 = Layer0.getInstance(g);\r
  84         final G2DResource g2d = G2DResource.getInstance(g);\r
  85         final DiagramResource dr = DiagramResource.getInstance(g);\r
  86 \r
  87         ElementClass ec = e.getElementClass();\r
  88 \r
  89         // Must be done here to allow for the relationship manager to work properly.\r
  90         e.setHint(ElementHints.KEY_OBJECT, element);\r
  91         e.setHint(SynchronizationHints.HINT_SYNCHRONIZER, HINT_SYNCHRONIZER);\r
  92         //System.out.println("    ElementClass:" + ec);\r
  93         //System.out.println("    Element:" + e);\r
  94 \r
  95         AffineTransform at = DiagramGraphUtil.getAffineTransform(g, element);\r
  96         ElementUtils.setTransform(e, at);\r
  97 \r
  98         // Load alignments\r
  99         MetricsFormat tmpf = null;\r
 100         try {\r
 101             tmpf = G2DUtils.getMetricsFormat(g, g.getSingleObject(element, dr.HasFormat));\r
 102         } catch(NoSingleResultException ex) {\r
 103             tmpf = MetricsFormatList.METRICS_GENERIC;\r
 104         }\r
 105         final MetricsFormat format = tmpf;\r
 106         e.setHint(SliderClass.KEY_NUMBER_FORMAT, format);\r
 107 \r
 108         double bounds[] = DiagramGraphUtil.getPossibleRelatedDoubleArray(g, element, g2d.HasBounds);\r
 109         if (bounds!=null) {\r
 110             e.setHint(ElementHints.KEY_BOUNDS, new Rectangle2D.Double(bounds[0], bounds[1], bounds[2], bounds[3]));\r
 111         }\r
 112 \r
 113         String label = g.getPossibleRelatedValue(element, l0.HasLabel);\r
 114         ElementUtils.setText(e, label);\r
 115 \r
 116         try {\r
 117             final Resource componentToElement = ModelingResources.getInstance(g).ComponentToElement;\r
 118             final Resource sliderComponent = g.getPossibleObject(element, dr.HasSliderComponent);\r
 119             final String sliderSuffix = g.getPossibleRelatedValue(element, dr.HasSliderSuffix, Bindings.STRING);\r
 120             // FIXME: use range instead\r
 121             final Double min = g.getPossibleRelatedValue(element, dr.HasSliderMinValue, Bindings.DOUBLE);\r
 122             final Double max = g.getPossibleRelatedValue(element, dr.HasSliderMaxValue, Bindings.DOUBLE);\r
 123 \r
 124             e.setHint(SliderClass.KEY_SLIDER_COMPONENT, sliderComponent);\r
 125             e.setHint(SliderClass.KEY_SLIDER_SUFFIX, sliderSuffix);\r
 126             e.setHint(SliderClass.KEY_SLIDER_RANGE, new SliderClass.Range<Double>(min, max));\r
 127             e.setHint(SliderClass.KEY_SLIDER_VALUE, new Double(0));\r
 128 \r
 129             final Resource parentDiagramElement = g.getPossibleObject(sliderComponent, componentToElement);\r
 130 \r
 131             // Load parent relationship now, or it unsuccessful, after all elements have been loaded.\r
 132             if (parentDiagramElement != null) {\r
 133                 if (!loadRelationships(g, diagram, e, parentDiagramElement)) {\r
 134                     e.setHint(DiagramModelHints.KEY_ELEMENT_LOADER, new ElementLoader() {\r
 135                         @Override\r
 136                         public void load(ReadGraph g, IDiagram diagram, IElement element) {\r
 137                             loadRelationships(g, diagram, element, parentDiagramElement);\r
 138                         }\r
 139                     });\r
 140                 }\r
 141             }\r
 142 \r
 143             // create tooltip\r
 144             if (sliderSuffix != null) {\r
 145                 e.setHint(SliderClass.KEY_TOOLTIP_TEXT, sliderSuffix);\r
 146             }\r
 147 \r
 148             final Session session = g.getSession();\r
 149 \r
 150             String sessionId = diagram.getHint(DiagramModelHints.KEY_SESSION_ID);\r
 151             Resource valuation =\r
 152                 sessionId != null ?\r
 153                         g.syncRequest(new PossibleSessionValuation(sliderComponent, sessionId, sliderSuffix)) :\r
 154                             g.syncRequest(new PossibleActiveValuation(sliderComponent, sliderSuffix));\r
 155 \r
 156                         if(valuation == null) {\r
 157                             return;\r
 158                         }\r
 159 \r
 160                         session.asyncRequest(new ValueImplied<Object>(valuation), new Listener<Object>() {\r
 161 \r
 162                             @Override\r
 163                             public void execute(final Object result) {\r
 164                                 final IElement el = ElementUtils.getByData(diagram, element);\r
 165                                 if(el != null) {\r
 166                                     ThreadUtils.asyncExec(canvas.getThreadAccess(), new Runnable() {\r
 167                                         @Override\r
 168                                         public void run() {\r
 169                                             el.setHint(SliderClass.KEY_SLIDER_VALUE, result);\r
 170                                             SliderClass.update(el);\r
 171                                         }\r
 172                                     });\r
 173                                 }\r
 174                             }\r
 175 \r
 176                             @Override\r
 177                             public void exception(Throwable t) {\r
 178                             }\r
 179 \r
 180                             @Override\r
 181                             public boolean isDisposed() {\r
 182                                 return canvas.isDisposed();\r
 183                             }\r
 184 \r
 185                         });\r
 186 \r
 187                         final StringModifier modifier = g.adapt(valuation, StringModifier.class);\r
 188                         TextEditor ed = ec.getAtMostOneItemOfClass(TextEditor.class);\r
 189                         ed.setModifier(e, new TextEditor.Modifier() {\r
 190 \r
 191                             @Override\r
 192                             public String getValue(IElement element) {\r
 193                                 return MonitorClass.editText(element);\r
 194                             }\r
 195 \r
 196                             @Override\r
 197                             public String isValid(IElement element, String text) {\r
 198                                 // TODO: implement validation properly\r
 199                                 return null;\r
 200                             }\r
 201 \r
 202                             @Override\r
 203                             public void modify(final IElement element, final String text) {\r
 204                                 session.asyncRequest(new WriteRequest() {\r
 205                                     @Override\r
 206                                     public void perform(WriteGraph graph) throws DatabaseException {\r
 207                                         modifier.modify(graph, text);\r
 208                                     }\r
 209                                 });\r
 210                             }\r
 211 \r
 212                         });\r
 213 \r
 214         } catch (ResourceNotFoundException e1) {\r
 215             e1.printStackTrace();\r
 216         }\r
 217     }\r
 218 \r
 219     boolean loadRelationships(ReadGraph g, IDiagram diagram, IElement element, Resource parentElementResource) {\r
 220         // If no relationship handler is available, stop loading.\r
 221         RelationshipHandler rh = diagram.getDiagramClass().getAtMostOneItemOfClass(RelationshipHandler.class);\r
 222         if (rh == null)\r
 223             return true;\r
 224 \r
 225         DataElementMap map = diagram.getDiagramClass().getSingleItem(DataElementMap.class);\r
 226         IElement parentElement = map.getElement(diagram, parentElementResource);\r
 227         if (parentElement != null) {\r
 228             element.setHint(ElementHints.KEY_PARENT_ELEMENT, parentElement);\r
 229             rh.claim(diagram, element, Relationship.CHILD_OF, parentElement);\r
 230             return true;\r
 231         }\r
 232 \r
 233         return false;\r
 234     }\r
 235 \r
 236     @Override\r
 237     public void create(AsyncReadGraph graph, ICanvasContext canvas, IDiagram diagram, Resource elementType,\r
 238             AsyncProcedure<ElementClass> procedure) {\r
 239         procedure.execute(graph, createSliderClass(elementType));\r
 240     }\r
 241 \r
 242 }\r