bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/widgets/Table.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2012 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.browsing.ui.swt.widgets;\r
  13 \r
  14 import java.util.List;\r
  15 import java.util.concurrent.CopyOnWriteArrayList;\r
  16 \r
  17 import org.eclipse.swt.SWT;\r
  18 import org.eclipse.swt.events.SelectionListener;\r
  19 import org.eclipse.swt.widgets.Composite;\r
  20 import org.eclipse.swt.widgets.Control;\r
  21 import org.eclipse.swt.widgets.TableItem;\r
  22 import org.simantics.browsing.ui.swt.widgets.impl.ReadFactory;\r
  23 import org.simantics.browsing.ui.swt.widgets.impl.Widget;\r
  24 import org.simantics.browsing.ui.swt.widgets.impl.WidgetSupport;\r
  25 import org.simantics.db.management.ISessionContext;\r
  26 import org.simantics.db.procedure.Listener;\r
  27 import org.simantics.utils.datastructures.Pair;\r
  28 import org.simantics.utils.ui.SWTUtils;\r
  29 \r
  30 public class Table extends WidgetImpl {\r
  31 \r
  32         private ReadFactory<?, List<Pair<String, Object>>> itemFactory;\r
  33         private ReadFactory<?, String> selectionFactory;\r
  34     private CopyOnWriteArrayList<SelectionListener> selectionListeners = new CopyOnWriteArrayList<SelectionListener>();\r
  35 \r
  36         final private org.eclipse.swt.widgets.Table table;\r
  37         \r
  38         public Table(Composite parent, WidgetSupport support, int style) {\r
  39                 super(support);\r
  40                 table = new org.eclipse.swt.widgets.Table(parent, style);\r
  41                 table.setData("org.simantics.browsing.ui.widgets.Combo", this);\r
  42                 support.register(this);\r
  43         }\r
  44         \r
  45         public void setItemFactory(ReadFactory<?, List<Pair<String, Object>>> itemFactory) {\r
  46                 this.itemFactory = itemFactory;\r
  47         }\r
  48 \r
  49         public void setSelectionFactory(ReadFactory<?, String> selectionFactory) {\r
  50                 this.selectionFactory = selectionFactory;\r
  51         }\r
  52 \r
  53         public org.eclipse.swt.widgets.Table getWidget() {\r
  54                 return table;\r
  55         }\r
  56         \r
  57         @Override\r
  58         public Control getControl() {\r
  59                 return table;\r
  60         }\r
  61 \r
  62         @Override\r
  63         public void setInput(ISessionContext context, Object input) {\r
  64 \r
  65         if (selectionListeners != null) {\r
  66             for (SelectionListener listener : selectionListeners) {\r
  67                 if(listener instanceof Widget) {\r
  68                     ((Widget) listener).setInput(context, input);\r
  69                 }\r
  70             }\r
  71         }\r
  72                 \r
  73                 if(itemFactory != null) {\r
  74                         itemFactory.listen(context, input, new Listener<List<Pair<String, Object>>>() {\r
  75 \r
  76                                 @Override\r
  77                                 public void exception(Throwable t) {\r
  78                                         t.printStackTrace();\r
  79                                 }\r
  80 \r
  81                                 @Override\r
  82                                 public void execute(final List<Pair<String, Object>> items) {\r
  83                                         SWTUtils.asyncExec(table, new Runnable() {\r
  84 \r
  85                                                 @Override\r
  86                                                 public void run() {\r
  87                                                         if(isDisposed()) return;\r
  88 //                                                      System.out.println("Combo received new items: " + items.size());\r
  89                                                         for(SelectionListener listener : selectionListeners) table.removeSelectionListener(listener);\r
  90                                                         table.setData(items);\r
  91                                                         try {\r
  92                                                                 table.removeAll();\r
  93                                                         } catch (Throwable t) {\r
  94                                                                 t.printStackTrace();\r
  95                                                         }\r
  96                                                         //table.setItemCount(items.size());\r
  97                                                         for(Pair<String, Object> key : items) {\r
  98                                                                 TableItem item = new TableItem (table, SWT.NONE);\r
  99                                                                 item.setText(key.first);\r
 100                                                                 item.setData(key.second);\r
 101                                                         }\r
 102                                                         String selectionKey = (String)table.getData("_SelectionKey");\r
 103                                                         if(selectionKey != null) {\r
 104                                                                 Integer selectionIndex = (Integer)table.getData(selectionKey);\r
 105                                                                 if(selectionIndex != null) table.select(selectionIndex);\r
 106                                                         }\r
 107                                                         for(SelectionListener listener : selectionListeners) table.addSelectionListener(listener);\r
 108                                                         \r
 109                                                         //label.setSize(200, 20);\r
 110 //                                                      label.getParent().layout();\r
 111 //                                                      label.getParent().getParent().layout();\r
 112                                                 }\r
 113 \r
 114                                         });\r
 115                                 }\r
 116 \r
 117                                 @Override\r
 118                                 public boolean isDisposed() {\r
 119                                         return table.isDisposed();\r
 120                                 }\r
 121 \r
 122                         });\r
 123                 }\r
 124 \r
 125                 if(selectionFactory != null) {\r
 126                         selectionFactory.listen(context, input, new Listener<String>() {\r
 127 \r
 128                                 @Override\r
 129                                 public void exception(Throwable t) {\r
 130                                         t.printStackTrace();\r
 131                                 }\r
 132 \r
 133                                 @Override\r
 134                                 public void execute(final String selectionKey) {\r
 135                                         SWTUtils.asyncExec(table, new Runnable() {\r
 136 \r
 137                                                 @Override\r
 138                                                 public void run() {\r
 139                                                         if(isDisposed()) return;\r
 140                                                         if(selectionKey == null) return;\r
 141 //                                                      System.out.println("Combo received new selection key: " + selectionKey);\r
 142                                                         \r
 143                                                         table.setData("_SelectionKey", selectionKey);\r
 144                                                         Integer selectionIndex = (Integer)table.getData(selectionKey);\r
 145                                                         if(selectionIndex != null) table.select(selectionIndex);\r
 146                                                         \r
 147                                                 }\r
 148 \r
 149                                         });\r
 150                                 }\r
 151 \r
 152                                 @Override\r
 153                                 public boolean isDisposed() {\r
 154                                         return table.isDisposed();\r
 155                                 }\r
 156 \r
 157                         });\r
 158                 }\r
 159                 \r
 160         }\r
 161 \r
 162     public synchronized void addSelectionListener(SelectionListener listener) {\r
 163         selectionListeners.add(listener);\r
 164                 table.addSelectionListener(listener);\r
 165     }\r
 166         \r
 167 }\r