1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.progress;
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3 |
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4 | import java.awt.Component;
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5 |
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6 | import org.openstreetmap.josm.gui.MainApplication;
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7 | import org.openstreetmap.josm.tools.Logging;
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8 |
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9 | /**
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10 | * A singleton progress monitor that does nothing.
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11 | * @since 1811
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12 | */
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13 | public final class NullProgressMonitor implements ProgressMonitor {
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14 |
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15 | /** The unique instance */
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16 | public static final ProgressMonitor INSTANCE = new NullProgressMonitor();
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17 |
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18 | private NullProgressMonitor() {
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19 | // Do nothing
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20 | }
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21 |
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22 | @Override
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23 | public void addCancelListener(CancelListener listener) {
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24 | // Do nothing
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25 | }
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26 |
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27 | @Override
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28 | public void beginTask(String title) {
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29 | Logging.debug(title);
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30 | }
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31 |
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32 | @Override
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33 | public void beginTask(String title, int ticks) {
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34 | Logging.debug(title);
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35 | }
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36 |
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37 | @Override
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38 | public void cancel() {
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39 | // Do nothing
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40 | }
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41 |
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42 | @Override
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43 | public ProgressMonitor createSubTaskMonitor(int ticks, boolean internal) {
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44 | return INSTANCE;
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45 | }
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46 |
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47 | @Override
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48 | public void finishTask() {
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49 | // Do nothing
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50 | }
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51 |
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52 | @Override
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53 | public int getTicks() {
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54 | return 0;
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55 | }
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56 |
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57 | @Override
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58 | public void indeterminateSubTask(String title) {
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59 | Logging.debug(title);
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60 | }
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61 |
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62 | @Override
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63 | public void invalidate() {
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64 | // Do nothing
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65 | }
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66 |
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67 | @Override
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68 | public boolean isCanceled() {
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69 | return false;
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70 | }
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71 |
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72 | @Override
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73 | public void removeCancelListener(CancelListener listener) {
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74 | // Do nothing
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75 | }
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76 |
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77 | @Override
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78 | public void setCustomText(String text) {
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79 | // Do nothing
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80 | }
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81 |
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82 | @Override
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83 | public void setExtraText(String text) {
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84 | // Do nothing
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85 | }
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86 |
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87 | @Override
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88 | public void appendLogMessage(String message) {
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89 | // Do nothing
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90 | }
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91 |
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92 | @Override
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93 | public void setTicks(int ticks) {
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94 | // Do nothing
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95 | }
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96 |
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97 | @Override
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98 | public void setTicksCount(int ticks) {
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99 | // Do nothing
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100 | }
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101 |
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102 | @Override
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103 | public void subTask(String title) {
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104 | Logging.debug(title);
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105 | }
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106 |
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107 | @Override
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108 | public void worked(int ticks) {
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109 | // Do nothing
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110 | }
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111 |
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112 | @Override
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113 | public int getTicksCount() {
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114 | return 0;
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115 | }
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116 |
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117 | @Override
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118 | public void setProgressTaskId(ProgressTaskId taskId) {
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119 | // Do nothing
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120 | }
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121 |
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122 | @Override
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123 | public ProgressTaskId getProgressTaskId() {
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124 | return null;
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125 | }
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126 |
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127 | @Override
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128 | public Component getWindowParent() {
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129 | return MainApplication.getMainFrame();
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130 | }
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131 | }
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