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73005152 | 1 | /********************************************************************** |
c8422608 | 2 | * Copyright (c) 2005, 2012 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 | |
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13 | package org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers; |
14 | ||
15 | import java.util.Iterator; | |
16 | ||
17 | import org.eclipse.jface.action.Action; | |
18 | import org.eclipse.jface.viewers.ISelection; | |
19 | import org.eclipse.jface.viewers.ISelectionProvider; | |
20 | import org.eclipse.jface.viewers.StructuredSelection; | |
d34665f9 | 21 | import org.eclipse.linuxtools.internal.tmf.ui.ITmfImageConstants; |
8fd82db5 | 22 | import org.eclipse.linuxtools.internal.tmf.ui.Activator; |
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23 | import org.eclipse.linuxtools.tmf.ui.views.uml2sd.SDView; |
24 | import org.eclipse.linuxtools.tmf.ui.views.uml2sd.SDWidget; | |
25 | import org.eclipse.linuxtools.tmf.ui.views.uml2sd.core.GraphNode; | |
26 | import org.eclipse.ui.IViewPart; | |
27 | ||
28 | /** | |
df0b8ff4 | 29 | * Action class implementation to show end of a graph node. |
c8422608 | 30 | * |
df0b8ff4 | 31 | * @version 1.0 |
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32 | * @author sveyrier |
33 | */ | |
34 | public class ShowNodeStart extends Action { | |
35 | ||
36 | // ------------------------------------------------------------------------ | |
37 | // Attributes | |
38 | // ------------------------------------------------------------------------ | |
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39 | /** |
40 | * The sequence diagram view reference | |
41 | */ | |
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42 | protected SDView fView = null; |
43 | ||
44 | // ------------------------------------------------------------------------ | |
45 | // Constructors | |
46 | // ------------------------------------------------------------------------ | |
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47 | /** |
48 | * Default constructor | |
49 | */ | |
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50 | public ShowNodeStart() { |
51 | this(null); | |
52 | } | |
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53 | |
54 | /** | |
55 | * Constructor | |
c8422608 | 56 | * |
eb63f5ff | 57 | * @param view The sequence diagram view reference |
df0b8ff4 | 58 | */ |
eb63f5ff | 59 | public ShowNodeStart(IViewPart view) { |
73005152 | 60 | super(); |
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61 | if (view instanceof SDView) { |
62 | fView = (SDView)view; | |
73005152 | 63 | } |
8fd82db5 | 64 | setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_NODE_START)); |
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65 | } |
66 | ||
67 | // ------------------------------------------------------------------------ | |
df0b8ff4 | 68 | // Methods |
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69 | // ------------------------------------------------------------------------ |
70 | /* | |
71 | * (non-Javadoc) | |
72 | * @see org.eclipse.jface.action.Action#run() | |
73 | */ | |
74 | @Override | |
75 | @SuppressWarnings("rawtypes") | |
76 | public void run() { | |
df0b8ff4 | 77 | if (fView == null) { |
73005152 | 78 | return; |
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79 | } |
80 | ||
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81 | SDWidget sdWidget = fView.getSDWidget(); |
82 | ||
83 | if (sdWidget == null) { | |
84 | return; | |
85 | } | |
df0b8ff4 | 86 | |
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87 | ISelectionProvider selProvider = sdWidget.getSelectionProvider(); |
88 | ISelection sel = selProvider.getSelection(); | |
89 | Object selectedNode = null; | |
90 | Iterator it = ((StructuredSelection) sel).iterator(); | |
df0b8ff4 | 91 | while (it.hasNext()) { |
73005152 | 92 | selectedNode = it.next(); |
df0b8ff4 | 93 | } |
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94 | if (selectedNode != null) { |
95 | GraphNode node = (GraphNode) selectedNode; | |
df0b8ff4 | 96 | if (node.getX() * sdWidget.getZoomFactor() < sdWidget.getContentsX() + sdWidget.getVisibleWidth() / 2) { |
73005152 | 97 | sdWidget.ensureVisible(Math.round(node.getX() * sdWidget.getZoomFactor() - sdWidget.getVisibleWidth() / (float) 2), Math.round(node.getY() * sdWidget.getZoomFactor())); |
df0b8ff4 | 98 | } else { |
73005152 | 99 | sdWidget.ensureVisible(Math.round(node.getX() * sdWidget.getZoomFactor() + sdWidget.getVisibleWidth() / (float) 2), Math.round(node.getY() * sdWidget.getZoomFactor())); |
df0b8ff4 | 100 | } |
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101 | } |
102 | } | |
103 | ||
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104 | /** |
105 | * Sets the active SD view. | |
c8422608 | 106 | * |
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107 | * @param view The SD view. |
108 | */ | |
109 | public void setView(SDView view) { | |
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110 | fView = view; |
111 | } | |
112 | } |