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1 /* |
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2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 * Background thread that schedules tree view refreshes |
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17 * |
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18 */ |
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19 package com.nokia.tracebuilder.view; |
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20 |
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21 import org.eclipse.jface.viewers.TreeViewer; |
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22 |
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23 /** |
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24 * Background thread that schedules tree view refreshes |
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25 * |
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26 */ |
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27 final class TraceViewUpdater extends Thread implements WrapperUpdater { |
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28 |
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29 /** |
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30 * View refresh timeout |
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31 */ |
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32 private final static int VIEW_REFRESH_TIMEOUT = 50; // CodForChk_Dis_Magic |
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33 |
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34 /** |
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35 * Running flag |
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36 */ |
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37 private boolean running; |
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38 |
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39 /** |
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40 * Async refresher timeout |
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41 */ |
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42 private long timeout; |
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43 |
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44 /** |
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45 * The view updater process |
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46 */ |
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47 private TraceViewUpdaterRunnable updaterRunnable; |
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48 |
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49 /** |
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50 * Tree viewer |
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51 */ |
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52 private TreeViewer viewer; |
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53 |
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54 /** |
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55 * Constructor |
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56 * |
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57 * @param viewer |
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58 * the viewer to be refreshed |
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59 */ |
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60 TraceViewUpdater(TreeViewer viewer) { |
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61 this.viewer = viewer; |
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62 updaterRunnable = new TraceViewUpdaterRunnable(viewer); |
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63 timeout = VIEW_REFRESH_TIMEOUT; |
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64 running = true; |
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65 start(); |
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66 } |
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67 |
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68 /* |
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69 * (non-Javadoc) |
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70 * |
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71 * @see java.lang.Runnable#run() |
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72 */ |
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73 @Override |
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74 public void run() { |
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75 while (running) { |
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76 try { |
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77 if (running && !updaterRunnable.hasUpdates()) { |
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78 Thread.sleep(timeout); |
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79 } |
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80 if (running && updaterRunnable.hasUpdates()) { |
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81 // Updates one viewer element |
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82 viewer.getControl().getDisplay().syncExec(updaterRunnable); |
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83 } |
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84 } catch (Exception e) { |
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85 } |
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86 } |
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87 } |
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88 |
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89 /* |
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90 * (non-Javadoc) |
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91 * |
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92 * @see com.nokia.tracebuilder.view.WrapperUpdater# |
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93 * queueUpdate(com.nokia.tracebuilder.view.WrapperBase) |
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94 */ |
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95 public void queueUpdate(WrapperBase wrapper) { |
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96 updaterRunnable.queueUpdate(wrapper); |
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97 } |
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98 |
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99 /* |
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100 * (non-Javadoc) |
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101 * |
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102 * @see com.nokia.tracebuilder.view.WrapperUpdater# |
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103 * queueSelection(com.nokia.tracebuilder.view.WrapperBase) |
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104 */ |
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105 public void queueSelection(WrapperBase wrapper) { |
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106 updaterRunnable.queueSelection(wrapper); |
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107 } |
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108 |
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109 /* |
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110 * (non-Javadoc) |
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111 * |
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112 * @see com.nokia.tracebuilder.view.WrapperUpdater# |
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113 * update(com.nokia.tracebuilder.view.WrapperBase) |
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114 */ |
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115 public void update(WrapperBase wrapper) { |
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116 viewer.refresh(wrapper); |
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117 } |
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118 |
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119 /** |
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120 * Stops the thread |
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121 */ |
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122 void stopUpdater() { |
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123 running = false; |
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124 } |
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125 |
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126 /** |
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127 * Sets the root wrapper |
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128 * |
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129 * @param modelWrapper |
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130 * the root wrapper |
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131 */ |
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132 void setRoot(TraceModelWrapper modelWrapper) { |
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133 updaterRunnable.setRoot(modelWrapper); |
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134 } |
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135 |
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136 } |