bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/handlers/e4/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.e4;\r
  13 \r
  14 import org.eclipse.e4.core.contexts.Active;\r
  15 import org.eclipse.e4.core.di.annotations.CanExecute;\r
  16 import org.eclipse.e4.core.di.annotations.Execute;\r
  17 import org.eclipse.e4.core.di.annotations.Optional;\r
  18 import org.eclipse.e4.ui.model.application.ui.basic.MPart;\r
  19 import org.eclipse.e4.ui.model.application.ui.menu.MToolItem;\r
  20 import org.eclipse.ui.IEditorPart;\r
  21 import org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor;\r
  22 import org.simantics.g2d.diagram.DiagramHints;\r
  23 import org.simantics.g2d.diagram.IDiagram;\r
  24 import org.simantics.g2d.layers.ILayersEditor;\r
  25 import org.simantics.modeling.ui.diagramEditor.DiagramEditor;\r
  26 import org.simantics.utils.ui.workbench.WorkbenchUtils;\r
  27 \r
  28 /**\r
  29  * @author Tuukka Lehtonen\r
  30  */\r
  31 public class ToggleFocusabilityHandler {\r
  32 \r
  33     @CanExecute\r
  34     public boolean canExecute(@Active MPart part) {\r
  35         if (!(part.getObject() instanceof CompatibilityEditor))\r
  36             return false;\r
  37         CompatibilityEditor editor = (CompatibilityEditor) part.getObject();\r
  38         if (!(editor.getPart() instanceof DiagramEditor))\r
  39             return false;\r
  40         return true;\r
  41     }\r
  42     \r
  43         @Execute\r
  44         public void execute(@Optional MToolItem toolItem) {\r
  45                 ILayersEditor le = getLayers();\r
  46                 if (le != null) {\r
  47                         boolean b = le.getIgnoreFocusSettings();\r
  48                         le.setIgnoreFocusSettings( !b );\r
  49 \r
  50                         if (toolItem != null) {\r
  51                             toolItem.setSelected(!b);\r
  52                             toolItem.setTooltip((!b ? "Deny" : "Allow") + " Focusing and Editing of Images");\r
  53                         }\r
  54                 }\r
  55         }\r
  56 \r
  57         protected ILayersEditor getLayers() {\r
  58                 DiagramEditor editor = getEditor();\r
  59                 if (editor == null)\r
  60                         return null;\r
  61                 return getLayers(editor);\r
  62         }\r
  63 \r
  64         protected ILayersEditor getLayers(DiagramEditor editor) {\r
  65                 // The diagram might not be available since the diagram editor loads it asynchronously.\r
  66                 IDiagram diagram = (IDiagram) editor.getAdapter(IDiagram.class);\r
  67                 if (diagram == null)\r
  68                         return null;\r
  69                 //System.out.println("getLayersEditor(" + diagram + ")");\r
  70                 ILayersEditor le = diagram.getHint(DiagramHints.KEY_LAYERS_EDITOR);\r
  71                 return le;\r
  72         }\r
  73 \r
  74         protected DiagramEditor getEditor() {\r
  75                 IEditorPart editorPart = WorkbenchUtils.getActiveEditor();\r
  76                 if (editorPart == null)\r
  77                         return null;\r
  78                 if (editorPart instanceof DiagramEditor) {\r
  79                         DiagramEditor editor = (DiagramEditor) editorPart;\r
  80                         return editor;\r
  81                 }\r
  82                 return null;\r
  83         }\r
  84 \r
  85 }\r