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

   1 /*******************************************************************************
   2  * Copyright (c) 2013 Association for Decentralized Information Management in
   3  * Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     Semantum Oy - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.modeling.ui.diagramEditor.handlers;
  13
  14 import java.util.Map;
  15
  16 import org.eclipse.core.commands.AbstractHandler;
  17 import org.eclipse.core.commands.ExecutionEvent;
  18 import org.eclipse.core.commands.ExecutionException;
  19 import org.eclipse.ui.IEditorPart;
  20 import org.eclipse.ui.PlatformUI;
  21 import org.eclipse.ui.commands.ICommandService;
  22 import org.eclipse.ui.commands.IElementUpdater;
  23 import org.eclipse.ui.menus.UIElement;
  24 import org.simantics.g2d.diagram.DiagramHints;
  25 import org.simantics.g2d.diagram.IDiagram;
  26 import org.simantics.g2d.layers.ILayersEditor;
  27 import org.simantics.modeling.ui.diagramEditor.DiagramEditor;
  28 import org.simantics.utils.ui.workbench.WorkbenchUtils;
  29
  30 /**
  31  * @author Tuukka Lehtonen
  32  */
  33 public class ToggleFocusabilityHandler extends AbstractHandler implements IElementUpdater {
  34
  35         @Override
  36         public Object execute(ExecutionEvent event) throws ExecutionException {
  37                 ILayersEditor le = getLayers();
  38                 if (le != null) {
  39                         boolean b = le.getIgnoreFocusSettings();
  40                         le.setIgnoreFocusSettings( !b );
  41
  42                         ICommandService service = (ICommandService) PlatformUI.getWorkbench().getService(ICommandService.class);
  43                         service.refreshElements(event.getCommand().getId(), null);
  44                 }
  45                 return null;
  46         }
  47
  48         @SuppressWarnings("rawtypes")
  49         @Override
  50         public void updateElement(UIElement element, Map parameters) {
  51                 //System.out.println("updateElement: " + element);
  52                 DiagramEditor editor = getEditor();
  53                 if (editor != null) {
  54                         //System.out.println("updateElement2: " + editor);
  55                         ILayersEditor le = getLayers(editor);
  56                         if (le != null) {
  57                                 boolean bool = le.getIgnoreFocusSettings();
  58                                 //System.out.println("get ignore focus setting: " + bool);
  59                                 element.setChecked(bool);
  60                                 element.setTooltip((bool ? "Deny" : "Allow") + " Focusing and Editing of Images");
  61                                 return;
  62                         }
  63                 }
  64         }
  65
  66         protected ILayersEditor getLayers() {
  67                 DiagramEditor editor = getEditor();
  68                 if (editor == null)
  69                         return null;
  70                 return getLayers(editor);
  71         }
  72
  73         protected ILayersEditor getLayers(DiagramEditor editor) {
  74                 // The diagram might not be available since the diagram editor loads it asynchronously.
  75                 IDiagram diagram = (IDiagram) editor.getAdapter(IDiagram.class);
  76                 if (diagram == null)
  77                         return null;
  78                 //System.out.println("getLayersEditor(" + diagram + ")");
  79                 ILayersEditor le = diagram.getHint(DiagramHints.KEY_LAYERS_EDITOR);
  80                 return le;
  81         }
  82
  83         protected DiagramEditor getEditor() {
  84                 IEditorPart editorPart = WorkbenchUtils.getActiveEditor();
  85                 if (editorPart == null)
  86                         return null;
  87                 if (editorPart instanceof DiagramEditor) {
  88                         DiagramEditor editor = (DiagramEditor) editorPart;
  89                         return editor;
  90                 }
  91                 return null;
  92         }
  93
  94 }