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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 EasyMercurial
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5
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6 Based on HgExplorer by Jari Korhonen
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7 Copyright (c) 2010 Jari Korhonen
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8 Copyright (c) 2010 Chris Cannam
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9 Copyright (c) 2010 Queen Mary, University of London
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10
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11 This program is free software; you can redistribute it and/or
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12 modify it under the terms of the GNU General Public License as
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13 published by the Free Software Foundation; either version 2 of the
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14 License, or (at your option) any later version. See the file
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15 COPYING included with this distribution for more information.
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16 */
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17
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18 #include "historywidget.h"
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19
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20 #include "changesetscene.h"
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21 #include "panned.h"
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22 #include "panner.h"
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23 #include "grapher.h"
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24 #include "debug.h"
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25
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26 #include <iostream>
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27
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28 #include <QGridLayout>
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29
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30 HistoryWidget::HistoryWidget()
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31 {
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32 m_panned = new Panned;
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33 m_panner = new Panner;
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34
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35 QGridLayout *layout = new QGridLayout;
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36 layout->addWidget(m_panned, 0, 0);
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37 layout->addWidget(m_panner, 0, 1);
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38 m_panner->setMaximumWidth(80);
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39 m_panner->connectToPanned(m_panned);
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40
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41 setLayout(layout);
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42 }
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43
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44 HistoryWidget::~HistoryWidget()
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45 {
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46 clearChangesets();
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47 }
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48
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49 void HistoryWidget::clearChangesets()
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50 {
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51 foreach (Changeset *cs, m_changesets) delete cs;
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52 m_changesets.clear();
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53 }
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54
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55 void HistoryWidget::parseNewLog(QString log)
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56 {
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57 DEBUG << "HistoryWidget::parseNewLog: log has " << log.length() << " chars" << endl;
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58 Changesets csets = parseChangeSets(log);
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59 DEBUG << "HistoryWidget::parseNewLog: log has " << csets.size() << " changesets" << endl;
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60 clearChangesets();
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61 m_changesets = csets;
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62 layoutAll();
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63 }
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64
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65 void HistoryWidget::parseIncrementalLog(QString log)
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66 {
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67 DEBUG << "HistoryWidget::parseIncrementalLog: log has " << log.length() << " chars" << endl;
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68 Changesets csets = parseChangeSets(log);
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69 DEBUG << "HistoryWidget::parseIncrementalLog: log has " << csets.size() << " changesets" << endl;
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70 if (!csets.empty()) {
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71 m_changesets << csets;
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72 layoutAll();
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73 }
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74 }
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75
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76 void HistoryWidget::layoutAll()
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77 {
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78 ChangesetScene *scene = new ChangesetScene();
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79 ChangesetItem *tipItem = 0;
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80
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81 if (!m_changesets.empty()) {
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82 Grapher g(scene);
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83 try {
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84 g.layout(m_changesets);
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85 } catch (std::string s) {
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86 std::cerr << "Internal error: Layout failed: " << s << std::endl;
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87 }
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88 tipItem = g.getItemFor(m_changesets[0]);
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89 DEBUG << "tipItem is " << tipItem << " for tip changeset "
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90 << m_changesets[0]->id() << endl;
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91 }
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92
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93 QGraphicsScene *oldScene = m_panned->scene();
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94 m_panned->setScene(scene);
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95 m_panner->setScene(scene);
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96
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97 if (oldScene) delete oldScene;
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98 if (tipItem) tipItem->ensureVisible();
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99 }
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100
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101 Changesets HistoryWidget::parseChangeSets(QString changeSetsStr)
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102 {
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103 Changesets csets = Changeset::parseChangesets(changeSetsStr);
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104 for (int i = 0; i+1 < csets.size(); ++i) {
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105 Changeset *cs = csets[i];
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106 if (cs->parents().empty()) {
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107 QStringList list;
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108 list.push_back(csets[i+1]->id());
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109 cs->setParents(list);
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110 }
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111 }
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112 return csets;
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113 }
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