eu.etaxonomy.taxeditor.molecular/src/main/java/eu/etaxonomy/taxeditor/molecular/handler/ToggleInsertOverwriteHandler.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.taxeditor.molecular.handler;
  11
  12
  13 import java.util.Map;
  14
  15 import org.eclipse.core.commands.ExecutionEvent;
  16 import org.eclipse.core.commands.ExecutionException;
  17 import org.eclipse.jface.resource.ImageDescriptor;
  18 import org.eclipse.ui.IEditorPart;
  19 import org.eclipse.ui.PlatformUI;
  20 import org.eclipse.ui.commands.ICommandService;
  21 import org.eclipse.ui.commands.IElementUpdater;
  22 import org.eclipse.ui.menus.UIElement;
  23
  24 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  25 import eu.etaxonomy.taxeditor.molecular.editor.AlignmentEditor;
  26
  27
  28
  29 /**
  30  * Switches an {@link AlignmentEditor} between insertion and overwrite mode.
  31  *
  32  * @author Ben Stöver
  33  * @date 04.12.2014
  34  */
  35 public class ToggleInsertOverwriteHandler extends AbstractAlignmentEditorHandler implements IElementUpdater {
  36         public static final String COMMAND_ID =
  37                         "eu.etaxonomy.taxeditor.molecular.AlignmentEditor.toggleInsertOverwrite";
  38
  39
  40     private final ImageDescriptor INSERT_DESCRIPTOR = HandlerTools.createImageDescriptor("insert-16x16.png");
  41     private final ImageDescriptor OVERWRITE_DESCRIPTOR = HandlerTools.createImageDescriptor("overwrite-16x16.png");
  42
  43
  44     @Override
  45     public void doExecute(ExecutionEvent event, AlignmentEditor editor) throws ExecutionException {
  46         editor.toggleInsertOverwrite();
  47     }
  48
  49
  50         @Override
  51         public void updateElement(UIElement element, @SuppressWarnings("rawtypes") Map parameters) {
  52         IEditorPart activeEditor = AbstractUtility.getActiveEditor();
  53                 if (activeEditor instanceof AlignmentEditor) {
  54                         if (((AlignmentEditor)activeEditor).isInsertMode()) {
  55                             element.setIcon(INSERT_DESCRIPTOR);
  56                                 element.setText("INS");
  57                                 element.setTooltip("Click to switch to overwrite mode");
  58                         }
  59                         else {
  60                 element.setIcon(OVERWRITE_DESCRIPTOR);
  61                                 element.setText("OVR");
  62                                 element.setTooltip("Click to switch to insertion mode");
  63                         }
  64             ((ICommandService)PlatformUI.getWorkbench().getService(ICommandService.class)).refreshElements(
  65                     ToggleLeftRightInsertionHandler.COMMAND_ID, null);
  66                 }
  67         }
  68 }