bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/handlers/ToggleFocusabilityHandler.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2013 Association for Decentralized Information Management in\r
   3  * 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  *     Semantum Oy - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.modeling.ui.diagramEditor.handlers;\r
  13 \r
  14 import java.util.Map;\r
  15 \r
  16 import org.eclipse.core.commands.AbstractHandler;\r
  17 import org.eclipse.core.commands.ExecutionEvent;\r
  18 import org.eclipse.core.commands.ExecutionException;\r
  19 import org.eclipse.ui.IEditorPart;\r
  20 import org.eclipse.ui.PlatformUI;\r
  21 import org.eclipse.ui.commands.ICommandService;\r
  22 import org.eclipse.ui.commands.IElementUpdater;\r
  23 import org.eclipse.ui.menus.UIElement;\r
  24 import org.simantics.g2d.diagram.DiagramHints;\r
  25 import org.simantics.g2d.diagram.IDiagram;\r
  26 import org.simantics.g2d.layers.ILayersEditor;\r
  27 import org.simantics.modeling.ui.diagramEditor.DiagramEditor;\r
  28 import org.simantics.utils.ui.workbench.WorkbenchUtils;\r
  29 \r
  30 /**\r
  31  * @author Tuukka Lehtonen\r
  32  */\r
  33 public class ToggleFocusabilityHandler extends AbstractHandler implements IElementUpdater {\r
  34 \r
  35         @Override\r
  36         public Object execute(ExecutionEvent event) throws ExecutionException {\r
  37                 ILayersEditor le = getLayers();\r
  38                 if (le != null) {\r
  39                         boolean b = le.getIgnoreFocusSettings();\r
  40                         le.setIgnoreFocusSettings( !b );\r
  41 \r
  42                         ICommandService service = (ICommandService) PlatformUI.getWorkbench().getService(ICommandService.class);\r
  43                         service.refreshElements(event.getCommand().getId(), null);\r
  44                 }\r
  45                 return null;\r
  46         }\r
  47 \r
  48         @SuppressWarnings("rawtypes")\r
  49         @Override\r
  50         public void updateElement(UIElement element, Map parameters) {\r
  51                 //System.out.println("updateElement: " + element);\r
  52                 DiagramEditor editor = getEditor();\r
  53                 if (editor != null) {\r
  54                         //System.out.println("updateElement2: " + editor);\r
  55                         ILayersEditor le = getLayers(editor);\r
  56                         if (le != null) {\r
  57                                 boolean bool = le.getIgnoreFocusSettings();\r
  58                                 //System.out.println("get ignore focus setting: " + bool);\r
  59                                 element.setChecked(bool);\r
  60                                 element.setTooltip((bool ? "Deny" : "Allow") + " Focusing and Editing of Images");\r
  61                                 return;\r
  62                         }\r
  63                 }\r
  64         }\r
  65 \r
  66         protected ILayersEditor getLayers() {\r
  67                 DiagramEditor editor = getEditor();\r
  68                 if (editor == null)\r
  69                         return null;\r
  70                 return getLayers(editor);\r
  71         }\r
  72 \r
  73         protected ILayersEditor getLayers(DiagramEditor editor) {\r
  74                 // The diagram might not be available since the diagram editor loads it asynchronously.\r
  75                 IDiagram diagram = (IDiagram) editor.getAdapter(IDiagram.class);\r
  76                 if (diagram == null)\r
  77                         return null;\r
  78                 //System.out.println("getLayersEditor(" + diagram + ")");\r
  79                 ILayersEditor le = diagram.getHint(DiagramHints.KEY_LAYERS_EDITOR);\r
  80                 return le;\r
  81         }\r
  82 \r
  83         protected DiagramEditor getEditor() {\r
  84                 IEditorPart editorPart = WorkbenchUtils.getActiveEditor();\r
  85                 if (editorPart == null)\r
  86                         return null;\r
  87                 if (editorPart instanceof DiagramEditor) {\r
  88                         DiagramEditor editor = (DiagramEditor) editorPart;\r
  89                         return editor;\r
  90                 }\r
  91                 return null;\r
  92         }\r
  93 \r
  94 }\r