bundles/org.simantics.ui/src/org/simantics/ui/workbench/dialogs/ResourceSelectionDialog.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.ui.workbench.dialogs;
  13
  14 import java.util.Comparator;
  15 import java.util.Map;
  16
  17 import org.eclipse.core.runtime.CoreException;
  18 import org.eclipse.core.runtime.IProgressMonitor;
  19 import org.eclipse.core.runtime.IStatus;
  20 import org.eclipse.core.runtime.Status;
  21 import org.eclipse.jface.dialogs.IDialogSettings;
  22 import org.eclipse.jface.viewers.ILabelProvider;
  23 import org.eclipse.jface.viewers.LabelProvider;
  24 import org.eclipse.swt.widgets.Composite;
  25 import org.eclipse.swt.widgets.Control;
  26 import org.eclipse.swt.widgets.Shell;
  27 import org.eclipse.ui.IMemento;
  28 import org.eclipse.ui.dialogs.FilteredItemsSelectionDialog;
  29 import org.eclipse.ui.dialogs.SearchPattern;
  30 import org.simantics.Simantics;
  31 import org.simantics.db.Resource;
  32 import org.simantics.db.exception.InvalidResourceReferenceException;
  33 import org.simantics.db.service.SerialisationSupport;
  34
  35 public abstract class ResourceSelectionDialog<T> extends FilteredItemsSelectionDialog {
  36
  37     Map<T, String> nameMap;
  38     String         title;
  39
  40     class ResourceSelectionHistory extends FilteredItemsSelectionDialog.SelectionHistory {
  41
  42         @Override
  43         protected Object restoreItemFromMemento(IMemento memento) {
  44             // FIXME: somehow create a collective transaction inside which the Graph.getRandomAccessReference should be invoked.
  45 //            Resource r = Simantics.getSession().getRandomAccessReference(memento.getTextData());
  46 //            return r;
  47             return null;
  48         }
  49
  50         @Override
  51         protected void storeItemToMemento(Object item, IMemento memento) {
  52             if(item instanceof Resource) {
  53                 try {
  54                         SerialisationSupport support = Simantics.getSession().getService(SerialisationSupport.class);
  55                     memento.putTextData(support.getResourceSerializer().createRandomAccessId((Resource)item));
  56                 } catch (InvalidResourceReferenceException e) {
  57                     e.printStackTrace();
  58                 }
  59             }
  60         }
  61
  62     };
  63
  64     public ResourceSelectionDialog(Shell shell, Map<T, String> parameter, String title) {
  65         super(shell, true);
  66         this.nameMap = parameter;
  67         this.title = title;
  68
  69         ILabelProvider labelProvider = new LabelProvider() {
  70             @Override
  71             public String getText(Object element) {
  72                 return nameMap.get(element);
  73             }
  74         };
  75
  76         setListLabelProvider(labelProvider);
  77         setDetailsLabelProvider(labelProvider);
  78
  79         setSelectionHistory(new ResourceSelectionHistory());
  80         setTitle(title);
  81
  82     }
  83
  84     @Override
  85     protected Control createExtendedContentArea(Composite parent) {
  86         // Don't create anything extra at the moment
  87         return null;
  88     }
  89
  90     class ResourceSelectionDialogItemsFilter extends FilteredItemsSelectionDialog.ItemsFilter {
  91
  92         public ResourceSelectionDialogItemsFilter() {
  93             String patternText = getPattern();
  94             patternMatcher = new SearchPattern();
  95             if(patternText != null && patternText.length() > 0)
  96                 patternMatcher.setPattern(patternText);
  97             else
  98                 patternMatcher.setPattern("*");
  99         }
 100
 101         @Override
 102         public boolean isConsistentItem(Object item) {
 103             return true;
 104         }
 105
 106         @Override
 107         public boolean matchItem(Object item) {
 108             return matches(nameMap.get(item));
 109         }
 110     }
 111
 112     @Override
 113     protected ItemsFilter createFilter() {
 114         return new ResourceSelectionDialogItemsFilter();
 115     }
 116
 117     @Override
 118     protected void fillContentProvider(AbstractContentProvider contentProvider,
 119             ItemsFilter itemsFilter, IProgressMonitor progressMonitor) throws CoreException {
 120         for(T o : nameMap.keySet())
 121             contentProvider.add(o, itemsFilter);
 122         if (progressMonitor != null)
 123             progressMonitor.done();
 124     }
 125
 126     protected abstract IDialogSettings getBaseDialogSettings();
 127
 128     @Override
 129     protected IDialogSettings getDialogSettings() {
 130         IDialogSettings base = getBaseDialogSettings();
 131         IDialogSettings settings = base.getSection(title);
 132         if (settings == null)
 133             settings = base.addNewSection(title);
 134         return settings;
 135     }
 136
 137     @Override
 138     public String getElementName(Object item) {
 139         return nameMap.get(item);
 140     }
 141
 142     @Override
 143     protected Comparator<?> getItemsComparator() {
 144         return new Comparator<Object>() {
 145
 146             @Override
 147             public int compare(Object o1, Object o2) {
 148                 return nameMap.get(o1).compareToIgnoreCase(nameMap.get(o2));
 149             }
 150
 151         };
 152     }
 153
 154     @Override
 155     protected IStatus validateItem(Object item) {
 156         return Status.OK_STATUS;
 157     }
 158 }