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

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