[9197] | 1 | // License: GPL. For details, see LICENSE file.
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[9185] | 2 | package org.openstreetmap.josm.io;
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| 3 |
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[9274] | 4 | import java.util.Locale;
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[11553] | 5 | import java.util.Optional;
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[9274] | 6 |
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[9185] | 7 | import org.openstreetmap.josm.gui.progress.NullProgressMonitor;
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| 8 | import org.openstreetmap.josm.gui.progress.ProgressMonitor;
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[9274] | 9 | import org.openstreetmap.josm.tools.Utils;
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[9185] | 10 |
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[12470] | 11 | /**
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| 12 | * Helper class for {@link StreamProgressUpdater} to encapsulate interaction with
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| 13 | * the {@link ProgressMonitor}.
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| 14 | */
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[9185] | 15 | final class StreamProgressUpdater {
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| 16 |
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| 17 | private final long size;
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| 18 | private final ProgressMonitor progressMonitor;
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| 19 | private final String taskTitle;
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| 20 | private int soFar;
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| 21 | private int lastDialogUpdate;
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| 22 |
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| 23 | StreamProgressUpdater(long size, ProgressMonitor progressMonitor, String taskTitle) {
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| 24 | this.size = size;
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[11553] | 25 | this.progressMonitor = Optional.ofNullable(progressMonitor).orElse(NullProgressMonitor.INSTANCE);
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[9185] | 26 | this.taskTitle = taskTitle;
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| 27 | initProgressMonitor();
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| 28 | }
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| 29 |
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| 30 | private void initProgressMonitor() {
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| 31 | if (size > 0) {
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[10161] | 32 | progressMonitor.subTask(taskTitle);
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[9185] | 33 | progressMonitor.setTicksCount((int) size);
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| 34 | } else {
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| 35 | progressMonitor.indeterminateSubTask(taskTitle);
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| 36 | }
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| 37 | }
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| 38 |
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| 39 | /**
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| 40 | * Increase ticker (progress counter and displayed text) by the given amount.
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| 41 | *
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| 42 | * @param amount number of ticks
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| 43 | */
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| 44 | void advanceTicker(int amount) {
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| 45 | soFar += amount;
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| 46 |
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| 47 | if (soFar / 1024 != lastDialogUpdate) {
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| 48 | lastDialogUpdate++;
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| 49 | if (size > 0) {
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| 50 | progressMonitor.setTicks(soFar);
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| 51 | }
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[9274] | 52 | progressMonitor.setExtraText(Utils.getSizeString(soFar, Locale.getDefault()));
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[9185] | 53 | }
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| 54 | }
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| 55 |
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| 56 | void finishTask() {
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| 57 | progressMonitor.finishTask();
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| 58 | }
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| 59 | }
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