bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/widgets/Button.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.concurrent.CopyOnWriteArrayList;\r
  15 \r
  16 import org.eclipse.jface.resource.ImageDescriptor;\r
  17 import org.eclipse.jface.resource.ResourceManager;\r
  18 import org.eclipse.swt.events.SelectionListener;\r
  19 import org.eclipse.swt.graphics.Image;\r
  20 import org.eclipse.swt.widgets.Composite;\r
  21 import org.eclipse.swt.widgets.Control;\r
  22 import org.simantics.Simantics;\r
  23 import org.simantics.browsing.ui.common.ErrorLogger;\r
  24 import org.simantics.browsing.ui.swt.widgets.impl.ReadFactory;\r
  25 import org.simantics.browsing.ui.swt.widgets.impl.Widget;\r
  26 import org.simantics.browsing.ui.swt.widgets.impl.WidgetSupport;\r
  27 import org.simantics.db.ReadGraph;\r
  28 import org.simantics.db.common.request.ParametrizedRead;\r
  29 import org.simantics.db.common.request.UniqueRead;\r
  30 import org.simantics.db.exception.DatabaseException;\r
  31 import org.simantics.db.management.ISessionContext;\r
  32 import org.simantics.db.procedure.Listener;\r
  33 import org.simantics.utils.ui.SWTUtils;\r
  34 \r
  35 public class Button extends WidgetImpl {\r
  36 \r
  37     private ReadFactory<?, String> textFactory;\r
  38     private ReadFactory<?, String> tooltipFactory;\r
  39     private ReadFactory<?, ImageDescriptor> imageFactory;\r
  40     private ReadFactory<?, Boolean> selectionFactory;\r
  41     private CopyOnWriteArrayList<SelectionListener> selectionListeners = new CopyOnWriteArrayList<SelectionListener>();\r
  42 \r
  43     private final org.eclipse.swt.widgets.Button button;\r
  44 \r
  45     public Button(Composite parent, WidgetSupport support, int style) {\r
  46         super(support);\r
  47         button = new org.eclipse.swt.widgets.Button(parent, style);\r
  48         support.register(this);\r
  49     }\r
  50 \r
  51     public void setTextFactory(ReadFactory<?, String> textFactory) {\r
  52         this.textFactory = textFactory;\r
  53     }\r
  54 \r
  55     public void setTooltipFactory(ReadFactory<?, String> tooltipFactory) {\r
  56         this.tooltipFactory = tooltipFactory;\r
  57     }\r
  58 \r
  59     public void setImageFactory(ReadFactory<?, ImageDescriptor> imageFactory) {\r
  60         this.imageFactory = imageFactory;\r
  61     }\r
  62 \r
  63     public void setSelectionFactory(ReadFactory<?, Boolean> selectionFactory) {\r
  64         this.selectionFactory = selectionFactory;\r
  65     }\r
  66 \r
  67     public org.eclipse.swt.widgets.Button getWidget() {\r
  68         return button;\r
  69     }\r
  70 \r
  71     @Override\r
  72     public Control getControl() {\r
  73         return button;\r
  74     }\r
  75 \r
  76     @Override\r
  77     public void setInput(ISessionContext context, Object input) {\r
  78 \r
  79         if (selectionListeners != null) {\r
  80             for (SelectionListener listener : selectionListeners) {\r
  81                 if(listener instanceof Widget) {\r
  82                     ((Widget) listener).setInput(context, input);\r
  83                 }\r
  84             }\r
  85         }\r
  86 \r
  87 \r
  88         if(textFactory != null) {\r
  89             textFactory.listen(context, input, new Listener<String>() {\r
  90 \r
  91                 @Override\r
  92                 public void exception(final Throwable t) {\r
  93                     SWTUtils.asyncExec(button, new Runnable() {\r
  94 \r
  95                         @Override\r
  96                         public void run() {\r
  97                             if(isDisposed()) return;\r
  98 //                            System.out.println("Button received new text: " + text);\r
  99                             button.setText(t.toString());\r
 100                         }\r
 101 \r
 102                     });\r
 103                 }\r
 104 \r
 105                 @Override\r
 106                 public void execute(final String text) {\r
 107                     SWTUtils.asyncExec(button, new Runnable() {\r
 108 \r
 109                         @Override\r
 110                         public void run() {\r
 111                             if(isDisposed()) return;\r
 112 //                            System.out.println("Button received new text: " + text);\r
 113                             button.setText(text);\r
 114                         }\r
 115 \r
 116                     });\r
 117                 }\r
 118 \r
 119                 @Override\r
 120                 public boolean isDisposed() {\r
 121                     return button.isDisposed();\r
 122                 }\r
 123 \r
 124             });\r
 125         }\r
 126 \r
 127         if(tooltipFactory != null) {\r
 128             tooltipFactory.listen(context, input, new Listener<String>() {\r
 129 \r
 130                 @Override\r
 131                 public void exception(Throwable t) {\r
 132                     ErrorLogger.defaultLogError(t);\r
 133                 }\r
 134 \r
 135                 @Override\r
 136                 public void execute(final String text) {\r
 137                     SWTUtils.asyncExec(button, new Runnable() {\r
 138 \r
 139                         @Override\r
 140                         public void run() {\r
 141                             if(isDisposed()) return;\r
 142 //                            System.out.println("Button received new tooltip: " + text);\r
 143                             button.setToolTipText(text);\r
 144                         }\r
 145 \r
 146                     });\r
 147                 }\r
 148 \r
 149                 @Override\r
 150                 public boolean isDisposed() {\r
 151                     return button.isDisposed();\r
 152                 }\r
 153 \r
 154             });\r
 155         }\r
 156 \r
 157         if(imageFactory != null) {\r
 158             imageFactory.listen(context, input, new Listener<ImageDescriptor>() {\r
 159 \r
 160                 @Override\r
 161                 public void exception(Throwable t) {\r
 162                     ErrorLogger.defaultLogError(t);\r
 163                 }\r
 164 \r
 165                 @Override\r
 166                 public void execute(final ImageDescriptor imageDescriptor) {\r
 167                     SWTUtils.asyncExec(button, new Runnable() {\r
 168 \r
 169                         @Override\r
 170                         public void run() {\r
 171 \r
 172                             if(isDisposed()) return;\r
 173 //                            System.out.println("Button received new image");\r
 174                             ResourceManager rm = support.getParameter(WidgetSupport.RESOURCE_MANAGER);\r
 175                             if (rm != null) {\r
 176                                 Image image = (Image) rm.get(imageDescriptor);\r
 177                                 button.setImage(image);\r
 178                             }\r
 179                             // TODO: how can we resize without this knife??\r
 180                             button.getParent().layout();\r
 181                             button.getParent().getParent().layout();\r
 182 \r
 183                         }\r
 184 \r
 185                     });\r
 186                 }\r
 187 \r
 188                 @Override\r
 189                 public boolean isDisposed() {\r
 190                     return button.isDisposed();\r
 191                 }\r
 192 \r
 193             });\r
 194         }\r
 195 \r
 196         if (selectionFactory != null) {\r
 197             selectionFactory.listen(context, input, new Listener<Boolean>() {\r
 198                 @Override\r
 199                 public void exception(Throwable t) {\r
 200                     ErrorLogger.defaultLogError(t);\r
 201                 }\r
 202                 @Override\r
 203                 public void execute(final Boolean selected) {\r
 204                     SWTUtils.asyncExec(button, new Runnable() {\r
 205                         @Override\r
 206                         public void run() {\r
 207                             if(isDisposed()) return;\r
 208                             button.setSelection(selected);\r
 209                         }\r
 210                     });\r
 211                 }\r
 212                 @Override\r
 213                 public boolean isDisposed() {\r
 214                     return button.isDisposed();\r
 215                 }\r
 216             });\r
 217         }\r
 218     }\r
 219 \r
 220     public void setText(String text) {\r
 221         button.setText(text);\r
 222     }\r
 223 \r
 224     public <T> void setText(final ParametrizedRead<T, String> read) {\r
 225                 \r
 226         Simantics.getSession().async(new UniqueRead<String>() {\r
 227 \r
 228                 @Override\r
 229                 public String perform(ReadGraph graph) throws DatabaseException {\r
 230                         T input = support.getInput(graph);\r
 231                         return graph.syncRequest(read.get(input));\r
 232                 }\r
 233 \r
 234         }, new Listener<String>() {\r
 235 \r
 236                 @Override\r
 237                 public void exception(Throwable t) {\r
 238                         t.printStackTrace();\r
 239                 }\r
 240 \r
 241                 @Override\r
 242                 public void execute(final String text) {\r
 243 \r
 244                         if(isDisposed()) return;\r
 245 \r
 246                         button.getDisplay().asyncExec(new Runnable() {\r
 247 \r
 248                                 @Override\r
 249                                 public void run() {\r
 250                                         button.setText(text);\r
 251                                 }\r
 252 \r
 253                         });\r
 254                 }\r
 255 \r
 256                 @Override\r
 257                 public boolean isDisposed() {\r
 258                         return button.isDisposed();\r
 259                 }\r
 260 \r
 261         });\r
 262 \r
 263     }\r
 264     \r
 265     public void setTooltipText(String text) {\r
 266         button.setToolTipText(text);\r
 267     }\r
 268 \r
 269     public void setImage(Image image) {\r
 270         button.setImage(image);\r
 271     }\r
 272 \r
 273     public void setSelection(boolean selected) {\r
 274         button.setSelection(selected);\r
 275     }\r
 276 \r
 277     public synchronized void addSelectionListener(SelectionListener listener) {\r
 278         selectionListeners.add(listener);\r
 279         button.addSelectionListener(listener);\r
 280     }\r
 281 \r
 282 }\r