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73005152 | 1 | /********************************************************************** |
ed902a2b | 2 | * Copyright (c) 2005, 2014 IBM Corporation, Ericsson |
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3 | * All rights reserved. This program and the accompanying materials |
4 | * are made available under the terms of the Eclipse Public License v1.0 | |
5 | * which accompanies this distribution, and is available at | |
6 | * http://www.eclipse.org/legal/epl-v10.html | |
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7 | * |
8 | * Contributors: | |
9 | * IBM - Initial API and implementation | |
10 | * Bernd Hufmann - Updated for TMF | |
73005152 | 11 | **********************************************************************/ |
c8422608 | 12 | |
2bdf0193 | 13 | package org.eclipse.tracecompass.tmf.ui.views.uml2sd.handlers; |
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14 | |
15 | import java.util.Iterator; | |
16 | ||
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17 | import org.eclipse.jface.viewers.ISelection; |
18 | import org.eclipse.jface.viewers.ISelectionProvider; | |
19 | import org.eclipse.jface.viewers.StructuredSelection; | |
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20 | import org.eclipse.tracecompass.internal.tmf.ui.Activator; |
21 | import org.eclipse.tracecompass.internal.tmf.ui.ITmfImageConstants; | |
22 | import org.eclipse.tracecompass.tmf.ui.views.uml2sd.SDView; | |
23 | import org.eclipse.tracecompass.tmf.ui.views.uml2sd.SDWidget; | |
24 | import org.eclipse.tracecompass.tmf.ui.views.uml2sd.core.GraphNode; | |
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25 | |
26 | /** | |
df0b8ff4 | 27 | * Action class implementation to show end of a graph node. |
c8422608 | 28 | * |
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29 | * @author sveyrier |
30 | */ | |
cab6c8ff | 31 | public class ShowNodeStart extends BaseSDAction { |
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32 | |
33 | // ------------------------------------------------------------------------ | |
34 | // Constructors | |
35 | // ------------------------------------------------------------------------ | |
11252342 | 36 | |
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37 | /** |
38 | * Default constructor | |
39 | */ | |
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40 | public ShowNodeStart() { |
41 | this(null); | |
42 | } | |
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43 | |
44 | /** | |
45 | * Constructor | |
c8422608 | 46 | * |
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47 | * @param view |
48 | * The sequence diagram view reference | |
df0b8ff4 | 49 | */ |
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50 | public ShowNodeStart(SDView view) { |
51 | super(view); | |
8fd82db5 | 52 | setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_NODE_START)); |
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53 | } |
54 | ||
55 | // ------------------------------------------------------------------------ | |
df0b8ff4 | 56 | // Methods |
73005152 | 57 | // ------------------------------------------------------------------------ |
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58 | |
59 | @Override | |
73005152 | 60 | public void run() { |
cab6c8ff | 61 | if (getView() == null) { |
73005152 | 62 | return; |
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63 | } |
64 | ||
cab6c8ff | 65 | SDWidget sdWidget = getView().getSDWidget(); |
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66 | |
67 | if (sdWidget == null) { | |
68 | return; | |
69 | } | |
df0b8ff4 | 70 | |
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71 | ISelectionProvider selProvider = sdWidget.getSelectionProvider(); |
72 | ISelection sel = selProvider.getSelection(); | |
73 | Object selectedNode = null; | |
5b5b7df5 | 74 | Iterator<Object> it = ((StructuredSelection) sel).iterator(); |
df0b8ff4 | 75 | while (it.hasNext()) { |
73005152 | 76 | selectedNode = it.next(); |
df0b8ff4 | 77 | } |
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78 | if (selectedNode != null) { |
79 | GraphNode node = (GraphNode) selectedNode; | |
df0b8ff4 | 80 | if (node.getX() * sdWidget.getZoomFactor() < sdWidget.getContentsX() + sdWidget.getVisibleWidth() / 2) { |
73005152 | 81 | sdWidget.ensureVisible(Math.round(node.getX() * sdWidget.getZoomFactor() - sdWidget.getVisibleWidth() / (float) 2), Math.round(node.getY() * sdWidget.getZoomFactor())); |
df0b8ff4 | 82 | } else { |
73005152 | 83 | sdWidget.ensureVisible(Math.round(node.getX() * sdWidget.getZoomFactor() + sdWidget.getVisibleWidth() / (float) 2), Math.round(node.getY() * sdWidget.getZoomFactor())); |
df0b8ff4 | 84 | } |
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85 | } |
86 | } | |
73005152 | 87 | } |