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