bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/ModelledGraphExplorerComposite.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2012 Association for Decentralized Information Management in\r
   3  * 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.browsing.ui.swt;\r
  13 \r
  14 import java.util.Collections;\r
  15 import java.util.HashMap;\r
  16 import java.util.Map;\r
  17 \r
  18 import org.eclipse.jface.action.IMenuManager;\r
  19 import org.eclipse.jface.viewers.IPostSelectionProvider;\r
  20 import org.eclipse.jface.viewers.ISelection;\r
  21 import org.eclipse.jface.viewers.ISelectionChangedListener;\r
  22 import org.eclipse.jface.viewers.SelectionChangedEvent;\r
  23 import org.eclipse.swt.SWT;\r
  24 import org.eclipse.swt.layout.GridData;\r
  25 import org.eclipse.swt.widgets.Composite;\r
  26 import org.eclipse.swt.widgets.Listener;\r
  27 import org.eclipse.ui.IWorkbenchSite;\r
  28 import org.simantics.Simantics;\r
  29 import org.simantics.browsing.ui.GraphExplorer;\r
  30 import org.simantics.browsing.ui.swt.stubs.BrowsingResource;\r
  31 import org.simantics.browsing.ui.swt.widgets.GraphExplorerComposite;\r
  32 import org.simantics.browsing.ui.swt.widgets.ModelBrowser;\r
  33 import org.simantics.browsing.ui.swt.widgets.impl.WidgetSupport;\r
  34 import org.simantics.databoard.Bindings;\r
  35 import org.simantics.db.ReadGraph;\r
  36 import org.simantics.db.Resource;\r
  37 import org.simantics.db.exception.DatabaseException;\r
  38 import org.simantics.db.management.ISessionContext;\r
  39 import org.simantics.db.request.Read;\r
  40 \r
  41 public class ModelledGraphExplorerComposite implements ModelledControl {\r
  42 \r
  43         final private Resource configuration;\r
  44         \r
  45         public ModelledGraphExplorerComposite(Resource configuration) {\r
  46                 this.configuration = configuration;\r
  47         }\r
  48         \r
  49         @Override\r
  50         public Composite create(Composite parent, IWorkbenchSite site, ISessionContext context, final WidgetSupport support) throws DatabaseException {\r
  51 \r
  52                 int style = Simantics.getSession().syncRequest(new Read<Integer>() {\r
  53 \r
  54                         @Override\r
  55                         public Integer perform(ReadGraph graph) throws DatabaseException {\r
  56                                 int style = SWT.BORDER | SWT.FULL_SELECTION | SWT.MULTI;\r
  57                                 BrowsingResource br = BrowsingResource.getInstance(graph);\r
  58                                 Boolean check = graph.getPossibleRelatedValue(configuration, br.GraphExplorerComposite_Check, Bindings.BOOLEAN);\r
  59                                 if(check != null && check) style |= SWT.CHECK;\r
  60                                 return style;\r
  61                                 \r
  62                         }\r
  63                         \r
  64                 });\r
  65                 \r
  66                 Map<String, Object> args = Simantics.getSession().syncRequest(new Read<Map<String, Object>>() {\r
  67 \r
  68                         @Override\r
  69                         public Map<String, Object> perform(ReadGraph graph) throws DatabaseException {\r
  70                                 \r
  71                         Map<String, Object> args = new HashMap<String, Object>();\r
  72                         args.put("displaySelectors", Boolean.FALSE);\r
  73                         args.put("displayFilter", Boolean.FALSE);\r
  74                         \r
  75                                 BrowsingResource br = BrowsingResource.getInstance(graph);\r
  76                                 Boolean displayFilter = graph.getPossibleRelatedValue(configuration, br.GraphExplorerComposite_DisplayFilter, Bindings.BOOLEAN);\r
  77                                 if(displayFilter != null) args.put("displayFilter", displayFilter);\r
  78                         \r
  79                         return args;\r
  80                         \r
  81                         }\r
  82                         \r
  83                 });\r
  84 \r
  85                 String browseContextURI = Simantics.getSession().syncRequest(new Read<String>() {\r
  86 \r
  87                         @Override\r
  88                         public String perform(ReadGraph graph) throws DatabaseException {\r
  89                                 BrowsingResource br = BrowsingResource.getInstance(graph);\r
  90                                 Resource browseContext = graph.getSingleObject(configuration, br.GraphExplorerComposite_BrowseContext);\r
  91                                 return graph.getURI(browseContext);\r
  92                         }\r
  93                         \r
  94                 });\r
  95                 \r
  96         final GraphExplorerComposite explorer = new ModelBrowser(Collections.singleton(browseContextURI), args, site, parent, support, style) {\r
  97             @Override\r
  98             protected void addListeners(GraphExplorer explorer, IMenuManager menuManager) {\r
  99                 // No mouse/key listeners in this explorer.\r
 100                 // Prevents unwanted contributions from interfering\r
 101                 // with how the control works.\r
 102             }\r
 103         };\r
 104         \r
 105         GridData gridData = Simantics.getSession().syncRequest(new Read<GridData>() {\r
 106 \r
 107             @Override\r
 108             public GridData perform(ReadGraph graph) throws DatabaseException {\r
 109                 BrowsingResource br = BrowsingResource.getInstance(graph);\r
 110                 GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);                \r
 111                 Integer span = graph.getPossibleRelatedValue(configuration, br.Control_HorizontalSpan, Bindings.INTEGER);\r
 112                 if(span != null) {\r
 113                         data.horizontalSpan = span;\r
 114                 }\r
 115                 Integer preferredWidth = graph.getPossibleRelatedValue(configuration, br.Control_PreferredWidth, Bindings.INTEGER);\r
 116                 data.widthHint = preferredWidth != null ? preferredWidth : SWT.DEFAULT;\r
 117                 Integer preferredHeight = graph.getPossibleRelatedValue(configuration, br.Control_PreferredHeight, Bindings.INTEGER);\r
 118                 data.heightHint = preferredHeight != null ? preferredHeight : SWT.DEFAULT;\r
 119                 return data;\r
 120             }\r
 121 \r
 122         });\r
 123         \r
 124         explorer.setLayoutData(gridData);\r
 125         \r
 126 //        explorer.setBrowseContexts(Collections.singleton(browseContextURI));\r
 127         \r
 128         explorer.setInputSource(new InputSourceImpl<Object>() {\r
 129 \r
 130                         @Override\r
 131                         public Object get(ISessionContext ctx, Object selection) {\r
 132                                 new Exception(""+selection).printStackTrace();\r
 133                                 return selection;\r
 134                         }\r
 135                 });\r
 136         \r
 137                 Listener selectionListener = Simantics.getSession().syncRequest(new Read<Listener>() {\r
 138 \r
 139                         @Override\r
 140                         public Listener perform(ReadGraph graph) throws DatabaseException {\r
 141                                 BrowsingResource br = BrowsingResource.getInstance(graph);\r
 142                                 Resource listener = graph.getPossibleObject(configuration, br.GraphExplorerComposite_SelectionListener);\r
 143                                 if(listener == null) return null;\r
 144                                 return graph.adapt(listener, Listener.class);\r
 145                         }\r
 146                         \r
 147                 });\r
 148                 \r
 149                 if(selectionListener != null) explorer.addListenerToControl(SWT.Selection, selectionListener);\r
 150                 \r
 151                 final String selectionParameter = Simantics.getSession().syncRequest(new Read<String>() {\r
 152 \r
 153                         @Override\r
 154                         public String perform(ReadGraph graph) throws DatabaseException {\r
 155                                 BrowsingResource br = BrowsingResource.getInstance(graph);\r
 156                                 Resource parameter = graph.getPossibleObject(configuration, br.GraphExplorerComposite_SelectionParameter);\r
 157                                 if(parameter == null) return null;\r
 158                                 return graph.getPossibleURI(parameter);\r
 159                         }\r
 160                         \r
 161                 });\r
 162                 \r
 163                 \r
 164                 if(selectionParameter != null) {\r
 165                         IPostSelectionProvider selectionProvider = (IPostSelectionProvider)explorer.getExplorer().getAdapter(IPostSelectionProvider.class);\r
 166                         selectionProvider.addPostSelectionChangedListener(new ISelectionChangedListener() {\r
 167                                 \r
 168                                 @Override\r
 169                                 public void selectionChanged(SelectionChangedEvent event) {\r
 170                                         ISelection selection = event.getSelection();\r
 171                                         support.setParameter(selectionParameter, selection);\r
 172                                 }\r
 173                                 \r
 174                         });\r
 175                 }\r
 176                 \r
 177         explorer.finish();\r
 178         \r
 179         return explorer;\r
 180                 \r
 181         }\r
 182         \r
 183 }\r