gerrit.simantics Code Review - simantics/platform.git/blob

   1 /*******************************************************************************
   2  * Copyright (c) 2012 Association for Decentralized Information Management in
   3  * 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.modeling.ui.componentTypeEditor;
  13
  14 import java.util.ArrayList;
  15 import java.util.Collections;
  16 import java.util.List;
  17
  18 import org.eclipse.jface.dialogs.IMessageProvider;
  19 import org.eclipse.jface.resource.JFaceResources;
  20 import org.eclipse.jface.resource.LocalResourceManager;
  21 import org.eclipse.jface.resource.ResourceManager;
  22 import org.eclipse.swt.SWT;
  23 import org.eclipse.swt.events.SelectionAdapter;
  24 import org.eclipse.swt.events.SelectionEvent;
  25 import org.eclipse.swt.layout.FormAttachment;
  26 import org.eclipse.swt.layout.FormData;
  27 import org.eclipse.swt.layout.FormLayout;
  28 import org.eclipse.swt.widgets.Composite;
  29 import org.eclipse.swt.widgets.Sash;
  30 import org.eclipse.ui.forms.IMessageManager;
  31 import org.eclipse.ui.forms.widgets.Form;
  32 import org.eclipse.ui.forms.widgets.FormToolkit;
  33 import org.osgi.framework.BundleContext;
  34 import org.osgi.framework.InvalidSyntaxException;
  35 import org.osgi.framework.ServiceReference;
  36 import org.simantics.Simantics;
  37 import org.simantics.databoard.Bindings;
  38 import org.simantics.databoard.binding.Binding;
  39 import org.simantics.databoard.binding.error.BindingException;
  40 import org.simantics.databoard.type.Datatype;
  41 import org.simantics.databoard.type.NumberType;
  42 import org.simantics.db.ReadGraph;
  43 import org.simantics.db.Resource;
  44 import org.simantics.db.common.NamedResource;
  45 import org.simantics.db.common.request.UniqueRead;
  46 import org.simantics.db.common.utils.NameUtils;
  47 import org.simantics.db.exception.DatabaseException;
  48 import org.simantics.db.layer0.util.Layer0Utils;
  49 import org.simantics.db.procedure.Listener;
  50 import org.simantics.db.request.Read;
  51 import org.simantics.layer0.Layer0;
  52 import org.simantics.modeling.ui.Activator;
  53 import org.simantics.operation.Layer0X;
  54 import org.simantics.structural.stubs.StructuralResource2;
  55 import org.simantics.utils.ui.ErrorLogger;
  56 import org.simantics.utils.ui.SWTUtils;
  57
  58 public class ComponentTypeViewer {
  59
  60     ComponentTypeViewerData data;
  61
  62     ResourceManager resourceManager;
  63
  64     ArrayList<ComponentTypeViewerSection> sections = new ArrayList<ComponentTypeViewerSection>(3);
  65
  66     public ComponentTypeViewer(Composite parent, Resource _componentType, String formTitle) {
  67         // Form
  68         FormToolkit tk = new FormToolkit(parent.getDisplay());
  69         Form form = tk.createForm(parent);
  70         tk.decorateFormHeading(form);
  71         resourceManager = new LocalResourceManager(JFaceResources.getResources(), form);
  72         form.setText(formTitle);
  73         form.setImage(resourceManager.createImage(Activator.COMPONENT_TYPE_ICON));
  74         {
  75             FormLayout layout = new FormLayout();
  76             layout.marginBottom = 10;
  77             layout.marginTop = 10;
  78             layout.marginLeft = 10;
  79             layout.marginRight = 10;
  80             form.getBody().setLayout(layout);
  81         }
  82
  83         // Data
  84         data = new ComponentTypeViewerData(tk, _componentType, form);
  85
  86         // Sections
  87
  88         sections.add(new ConfigurationPropertiesSection(data));
  89         sections.add(new DerivedPropertiesSection(data));
  90
  91         BundleContext bundleContext = Activator.getContext();
  92         try {
  93             ArrayList<ComponentTypeViewerSectionFactory> factories =
  94                     Simantics.getSession().syncRequest(new Read<ArrayList<ComponentTypeViewerSectionFactory>>() {
  95                         @Override
  96                         public ArrayList<ComponentTypeViewerSectionFactory> perform(
  97                                 ReadGraph graph) throws DatabaseException {
  98                             ArrayList<ComponentTypeViewerSectionFactory> factories =
  99                                     new ArrayList<ComponentTypeViewerSectionFactory>(3);
 100                             try {
 101                                 String className = ComponentTypeViewerSectionFactory.class.getName();
 102                                 ServiceReference<?>[] references = bundleContext.getAllServiceReferences(className, null);
 103                                 if(references != null)
 104                                     for(ServiceReference<?> reference : references) {
 105                                         ComponentTypeViewerSectionFactory factory = (ComponentTypeViewerSectionFactory)bundleContext.getService(reference);
 106                                         if(factory.doesSupport(graph, _componentType))
 107                                             factories.add(factory);
 108                                     }
 109                             } catch (InvalidSyntaxException e) {
 110                                 e.printStackTrace();
 111                             }
 112                             return factories;
 113                         }
 114                     });
 115             for(ComponentTypeViewerSectionFactory factory : factories)
 116                 sections.add(factory.create(data));
 117         } catch(DatabaseException e) {
 118             e.printStackTrace();
 119         }
 120
 121         sections.sort((a,b) -> { return Double.compare(a.getPriority(), b.getPriority()); });
 122
 123         // Sashes
 124
 125         Sash[] sashes = new Sash[sections.size()-1];
 126         for(int i=0;i<sections.size()-1;++i) {
 127             Sash sash = new Sash(form.getBody(), SWT.HORIZONTAL);
 128             sash.setBackground(sash.getDisplay().getSystemColor(SWT.COLOR_WHITE));
 129             {
 130                 FormData data = new FormData();
 131                 data.top = new FormAttachment(100*(i+1)/sections.size(), 0);
 132                 data.left = new FormAttachment(0, 0);
 133                 data.right = new FormAttachment(100, 0);
 134                 data.height = 10;
 135                 sash.setLayoutData(data);
 136             }
 137             sash.addSelectionListener(new SelectionAdapter() {
 138                 public void widgetSelected(SelectionEvent e) {
 139                     sash.setBounds(e.x, e.y, e.width, e.height);
 140                     FormData data = new FormData();
 141                     data.top = new FormAttachment(0, e.y);
 142                     data.left = new FormAttachment(0, 0);
 143                     data.right = new FormAttachment(100, 0);
 144                     data.height = 10;
 145                     sash.setLayoutData(data);
 146                     form.getBody().layout(true);
 147                 }
 148             });
 149             sashes[i] = sash;
 150         }
 151         for(int i=0;i<sections.size();++i) {
 152             {
 153                 FormData formData = new FormData();
 154                 formData.top = i > 0 ? new FormAttachment(sashes[i-1]) : new FormAttachment(0, 0);
 155                 formData.left = new FormAttachment(0, 0);
 156                 formData.right = new FormAttachment(100, 0);
 157                 formData.bottom = i < sections.size()-1
 158                         ? new FormAttachment(sashes[i]) : new FormAttachment(100, 0);
 159                 sections.get(i).getSection().setLayoutData(formData);
 160             }
 161         }
 162
 163         // Listening
 164         createGraphListener();
 165     }
 166
 167     private void createGraphListener() {
 168         Simantics.getSession().asyncRequest(new UniqueRead<ComponentTypePropertiesResult>() {
 169             @Override
 170             public ComponentTypePropertiesResult perform(ReadGraph graph) throws DatabaseException {
 171                 List<ComponentTypeViewerPropertyInfo> result = new ArrayList<>();
 172                 List<NamedResource> connectionPoints = new ArrayList<>();
 173                 Layer0 L0 = Layer0.getInstance(graph);
 174                 Layer0X L0X = Layer0X.getInstance(graph);
 175                 StructuralResource2 STR = StructuralResource2.getInstance(graph);
 176
 177                 boolean typeIsImmutable = graph.isImmutable(data.componentType)
 178                         || graph.hasStatement(data.componentType, STR.ComponentType_Locked)
 179                         || Layer0Utils.isPublished(graph, data.componentType)
 180                         || Layer0Utils.isContainerPublished(graph, data.componentType);
 181
 182                 for(Resource relation : graph.getObjects(data.componentType, L0.DomainOf)) {
 183                     if(graph.isSubrelationOf(relation, L0.HasProperty)) {
 184                         String name = graph.getRelatedValue(relation, L0.HasName);
 185                         String type =  graph.getPossibleRelatedValue(relation, L0.RequiresValueType);
 186                         String label = graph.getPossibleRelatedValue(relation, L0.HasLabel);
 187                         if (label == null)
 188                             label = "";
 189                         String description = graph.getPossibleRelatedValue(relation, L0.HasDescription);
 190                         if (description == null)
 191                             description = "";
 192                         NumberType numberType = null;
 193                         if(type == null)
 194                             type = "Double";
 195                         String unit = graph.getPossibleRelatedValue(relation, L0X.HasUnit, Bindings.STRING);
 196                         String defaultValue = "0";
 197                         String expression = null;
 198
 199                         for(Resource assertion : graph.getAssertedObjects(data.componentType, relation)) {
 200                             try {
 201                                 expression = graph.getPossibleRelatedValue(assertion, L0.SCLValue_expression, Bindings.STRING);
 202                                 if(expression != null) {
 203                                         defaultValue = "=" + expression;
 204                                 } else {
 205                                         Datatype dt = getPossibleDatatype(graph, assertion);
 206                                         if (dt == null)
 207                                             continue;
 208                                         if (dt instanceof NumberType)
 209                                             numberType = (NumberType) dt;
 210                                         Binding binding = Bindings.getBinding(dt);
 211                                         Object value = graph.getValue(assertion, binding);
 212                                         try {
 213                                             defaultValue = binding.toString(value, true);
 214                                         } catch (BindingException e) {
 215                                             ErrorLogger.defaultLogError(e);
 216                                         }
 217                                 }
 218                             } catch(DatabaseException e) {
 219                                 ErrorLogger.defaultLogError(e);
 220                             }
 221                         }
 222
 223                         String valid = expression != null ? DerivedPropertiesSection.validateMonitorExpression(graph, data.componentType, relation, expression) : null;
 224
 225                         boolean immutable = typeIsImmutable || graph.isImmutable(relation);
 226                         ComponentTypeViewerPropertyInfo info =
 227                                 new ComponentTypeViewerPropertyInfo(relation, name, type, defaultValue, numberType, unit, label, description, expression, valid, immutable);
 228
 229                         Object sectionSpecificData = null;
 230                         double priority = Double.NEGATIVE_INFINITY;
 231                         for(ComponentTypeViewerSection section : sections) {
 232                             Object temp = section.getSectionSpecificData(graph, info);
 233                             if(temp != null) {
 234                                 double sectionPriority = section.getDataPriority();
 235                                 if(sectionPriority > priority) {
 236                                     sectionSpecificData = temp;
 237                                     priority = sectionPriority;
 238                                 }
 239                             }
 240                         }
 241                         info.sectionSpecificData = sectionSpecificData;
 242
 243                         result.add(info);
 244
 245                     } else if (graph.isInstanceOf(relation, STR.ConnectionRelation)) {
 246                         NamedResource nr = new NamedResource(NameUtils.getSafeName(graph, relation), relation);
 247                         connectionPoints.add(nr);
 248                     }
 249                 }
 250                 Collections.sort(result);
 251                 return new ComponentTypePropertiesResult(result, connectionPoints, typeIsImmutable);
 252             }
 253         }, new Listener<ComponentTypePropertiesResult>() {
 254             @Override
 255             public void execute(final ComponentTypePropertiesResult result) {
 256                 SWTUtils.asyncExec(data.form.getDisplay(), new Runnable() {
 257                     @Override
 258                     public void run() {
 259                         // Store loaded properties
 260                         data.properties = result.getProperties().toArray(new ComponentTypeViewerPropertyInfo[result.getProperties().size()]);
 261                         data.connectionPoints = result.getConnectionPoints().toArray(new NamedResource[result.getConnectionPoints().size()]);
 262
 263                         for(ComponentTypeViewerSection section : sections)
 264                             section.update(result);
 265                         setReadOnly(result.isImmutable());
 266                     }
 267                 });
 268             }
 269
 270             @Override
 271             public void exception(Throwable t) {
 272                 ErrorLogger.defaultLogError(t);
 273             }
 274
 275             @Override
 276             public boolean isDisposed() {
 277                 return data.form.isDisposed();
 278             }
 279
 280         });
 281     }
 282
 283     protected Datatype getPossibleDatatype(ReadGraph graph, Resource literal) throws DatabaseException {
 284         Binding binding = Bindings.getBindingUnchecked(Datatype.class);
 285         for (Resource dataTypeResource : graph.getObjects(literal, Layer0.getInstance(graph).HasDataType)) {
 286             Datatype dt = graph.getPossibleValue(dataTypeResource, binding);
 287             if (dt != null)
 288                 return dt;
 289         }
 290         return null;
 291     }
 292
 293     public void setFocus() {
 294         data.form.setFocus();
 295     }
 296
 297     /**
 298      * @param readOnly
 299      * @thread SWT
 300      */
 301     private void setReadOnly(boolean readOnly) {
 302         if (readOnly == data.readOnly)
 303             return;
 304         data.readOnly = readOnly;
 305         for(ComponentTypeViewerSection section : sections)
 306             section.setReadOnly(readOnly);
 307         IMessageManager mm = data.form.getMessageManager();
 308         if (readOnly)
 309             mm.addMessage("readonly", "(Opened in read-only mode)", null, IMessageProvider.INFORMATION);
 310         else
 311             mm.removeMessage("readonly");
 312     }
 313
 314 }