1 /*******************************************************************************
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2 * Copyright (c) 2007, 2011 Association for Decentralized Information Management in
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.charts.ui;
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14 import java.util.Map;
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16 import org.eclipse.core.commands.AbstractHandler;
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17 import org.eclipse.core.commands.Command;
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18 import org.eclipse.core.commands.ExecutionEvent;
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19 import org.eclipse.core.commands.ExecutionException;
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20 import org.eclipse.core.commands.IHandler;
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21 import org.eclipse.core.commands.State;
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22 import org.eclipse.ui.IEditorPart;
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23 import org.eclipse.ui.IEditorReference;
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24 import org.eclipse.ui.IWorkbenchPage;
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25 import org.eclipse.ui.IWorkbenchPart;
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26 import org.eclipse.ui.IWorkbenchWindow;
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27 import org.eclipse.ui.PlatformUI;
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28 import org.eclipse.ui.commands.ICommandService;
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29 import org.eclipse.ui.commands.IElementUpdater;
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30 import org.eclipse.ui.handlers.HandlerUtil;
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31 import org.eclipse.ui.menus.UIElement;
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32 import org.simantics.charts.editor.TimeSeriesEditor;
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34 public class LinkTimeHandler extends AbstractHandler implements IHandler, IElementUpdater {
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36 public static final String COMMAND_ID = "org.simantics.charts.linktime";
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37 public static final String STATE_ID = "org.simantics.charts.linktime.state";
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40 public Object execute(ExecutionEvent event) throws ExecutionException {
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41 ICommandService service = (ICommandService) PlatformUI.getWorkbench().getService(ICommandService.class);
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42 Command command = service.getCommand( COMMAND_ID );
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43 State state = command.getState( STATE_ID );
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44 if (state != null) {
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45 ChartLinkData oldData = (ChartLinkData) state.getValue();
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46 if (oldData == null) {
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47 TimeSeriesEditor editor = getEditor( event );
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48 ChartLinkData currentData = new ChartLinkData();
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49 if (editor != null) {
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50 editor.getFromEnd(currentData);
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52 state.setValue( currentData );
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54 state.setValue(null);
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58 service.refreshElements(COMMAND_ID, null);
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63 * Get active editor or first one
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66 TimeSeriesEditor getEditor(ExecutionEvent event) {
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67 IWorkbenchPart ap = HandlerUtil.getActivePart(event);
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68 if ( ap instanceof TimeSeriesEditor ) return (TimeSeriesEditor) ap;
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70 IWorkbenchWindow win = HandlerUtil.getActiveWorkbenchWindow(event);
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71 if (win==null) return null;
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72 for (IWorkbenchPage page : win.getPages()) {
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73 for (IEditorReference ref : page.getEditorReferences()) {
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74 if (ref.getId().equals(TimeSeriesEditor.ID)) {
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75 IEditorPart part = ref.getEditor(false);
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76 return (TimeSeriesEditor) part;
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85 public void updateElement(UIElement element, @SuppressWarnings("rawtypes") Map parameters) {
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86 ICommandService service = (ICommandService) PlatformUI.getWorkbench().getService(ICommandService.class);
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87 Command command = service.getCommand( COMMAND_ID );
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88 State state = command.getState( STATE_ID );
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89 element.setChecked( state != null && state.getValue()!=null );
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