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73005152 | 1 | /********************************************************************** |
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2 | * Copyright (c) 2005, 2006 IBM Corporation and others. |
3 | * Copyright (c) 2011, 2012 Ericsson. | |
4 | * | |
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5 | * All rights reserved. This program and the accompanying materials |
6 | * are made available under the terms of the Eclipse Public License v1.0 | |
7 | * which accompanies this distribution, and is available at | |
8 | * http://www.eclipse.org/legal/epl-v10.html | |
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9 | * |
10 | * Contributors: | |
11 | * IBM - Initial API and implementation | |
12 | * Bernd Hufmann - Updated for TMF | |
13 | **********************************************************************/ | |
14 | package org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers; | |
15 | ||
16 | import java.util.Iterator; | |
17 | ||
18 | import org.eclipse.jface.action.Action; | |
19 | import org.eclipse.jface.viewers.ISelection; | |
20 | import org.eclipse.jface.viewers.ISelectionProvider; | |
21 | import org.eclipse.jface.viewers.StructuredSelection; | |
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22 | import org.eclipse.linuxtools.internal.tmf.ui.ITmfImageConstants; |
23 | import org.eclipse.linuxtools.internal.tmf.ui.TmfUiPlugin; | |
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24 | import org.eclipse.linuxtools.tmf.ui.views.uml2sd.SDView; |
25 | import org.eclipse.linuxtools.tmf.ui.views.uml2sd.SDWidget; | |
26 | import org.eclipse.linuxtools.tmf.ui.views.uml2sd.core.GraphNode; | |
27 | import org.eclipse.ui.IViewPart; | |
28 | ||
29 | /** | |
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30 | * Action class implementation to show end of a graph node. |
31 | * | |
32 | * @version 1.0 | |
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33 | * @author sveyrier |
34 | */ | |
35 | public class ShowNodeStart extends Action { | |
36 | ||
37 | // ------------------------------------------------------------------------ | |
38 | // Attributes | |
39 | // ------------------------------------------------------------------------ | |
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40 | /** |
41 | * The sequence diagram view reference | |
42 | */ | |
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43 | protected SDView fView = null; |
44 | ||
45 | // ------------------------------------------------------------------------ | |
46 | // Constructors | |
47 | // ------------------------------------------------------------------------ | |
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48 | /** |
49 | * Default constructor | |
50 | */ | |
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51 | public ShowNodeStart() { |
52 | this(null); | |
53 | } | |
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54 | |
55 | /** | |
56 | * Constructor | |
57 | * | |
eb63f5ff | 58 | * @param view The sequence diagram view reference |
df0b8ff4 | 59 | */ |
eb63f5ff | 60 | public ShowNodeStart(IViewPart view) { |
73005152 | 61 | super(); |
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62 | if (view instanceof SDView) { |
63 | fView = (SDView)view; | |
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64 | } |
65 | setImageDescriptor(TmfUiPlugin.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_NODE_START)); | |
66 | } | |
67 | ||
68 | // ------------------------------------------------------------------------ | |
df0b8ff4 | 69 | // Methods |
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70 | // ------------------------------------------------------------------------ |
71 | /* | |
72 | * (non-Javadoc) | |
73 | * @see org.eclipse.jface.action.Action#run() | |
74 | */ | |
75 | @Override | |
76 | @SuppressWarnings("rawtypes") | |
77 | public void run() { | |
df0b8ff4 | 78 | if (fView == null) { |
73005152 | 79 | return; |
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80 | } |
81 | ||
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82 | SDWidget sdWidget = fView.getSDWidget(); |
83 | ||
84 | if (sdWidget == null) { | |
85 | return; | |
86 | } | |
df0b8ff4 | 87 | |
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88 | ISelectionProvider selProvider = sdWidget.getSelectionProvider(); |
89 | ISelection sel = selProvider.getSelection(); | |
90 | Object selectedNode = null; | |
91 | Iterator it = ((StructuredSelection) sel).iterator(); | |
df0b8ff4 | 92 | while (it.hasNext()) { |
73005152 | 93 | selectedNode = it.next(); |
df0b8ff4 | 94 | } |
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95 | if (selectedNode != null) { |
96 | GraphNode node = (GraphNode) selectedNode; | |
df0b8ff4 | 97 | if (node.getX() * sdWidget.getZoomFactor() < sdWidget.getContentsX() + sdWidget.getVisibleWidth() / 2) { |
73005152 | 98 | sdWidget.ensureVisible(Math.round(node.getX() * sdWidget.getZoomFactor() - sdWidget.getVisibleWidth() / (float) 2), Math.round(node.getY() * sdWidget.getZoomFactor())); |
df0b8ff4 | 99 | } else { |
73005152 | 100 | sdWidget.ensureVisible(Math.round(node.getX() * sdWidget.getZoomFactor() + sdWidget.getVisibleWidth() / (float) 2), Math.round(node.getY() * sdWidget.getZoomFactor())); |
df0b8ff4 | 101 | } |
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102 | } |
103 | } | |
104 | ||
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105 | /** |
106 | * Sets the active SD view. | |
107 | * | |
108 | * @param view The SD view. | |
109 | */ | |
110 | public void setView(SDView view) { | |
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111 | fView = view; |
112 | } | |
113 | } |