1 files changed, 1229 insertions, 0 deletions
diff --git a/src/modinfodialogconflicts.cpp b/src/modinfodialogconflicts.cpp
new file mode 100644
index 00000000..511d48ad
--- /dev/null
+++ b/src/modinfodialogconflicts.cpp
@@ -0,0 +1,1229 @@
+#include "modinfodialogconflicts.h"
+#include "ui_modinfodialog.h"
+#include "modinfodialog.h"
+#include "utility.h"
+#include "settings.h"
+#include "organizercore.h"
+
+using namespace MOShared;
+using namespace MOBase;
+namespace shell = MOBase::shell;
+
+// if there are more than 50 selected items in the conflict tree, don't bother
+// checking whether menu items apply to them, just show all of them
+const std::size_t max_small_selection = 50;
+
+
+class ConflictItem
+{
+public:
+  ConflictItem(
+    QString before, QString relativeName, QString after,
+    FileEntry::Index index,  QString fileName,
+    bool hasAltOrigins, QString altOrigin,  bool archive) :
+      m_before(std::move(before)),
+      m_relativeName(std::move(relativeName)),
+      m_after(std::move(after)),
+      m_index(index),
+      m_fileName(std::move(fileName)),
+      m_hasAltOrigins(hasAltOrigins),
+      m_altOrigin(std::move(altOrigin)),
+      m_isArchive(archive)
+  {
+  }
+
+  const QString& before() const
+  {
+    return m_before;
+  }
+
+  const QString& relativeName() const
+  {
+    return m_relativeName;
+  }
+
+  const QString& after() const
+  {
+    return m_after;
+  }
+
+  const QString& fileName() const
+  {
+    return m_fileName;
+  }
+
+  const QString& altOrigin() const
+  {
+    return m_altOrigin;
+  }
+
+  bool hasAlts() const
+  {
+    return m_hasAltOrigins;
+  }
+
+  bool isArchive() const
+  {
+    return m_isArchive;
+  }
+
+  FileEntry::Index fileIndex() const
+  {
+    return m_index;
+  }
+
+  bool canHide() const
+  {
+    return canHideFile(isArchive(), fileName());
+  }
+
+  bool canUnhide() const
+  {
+    return canUnhideFile(isArchive(), fileName());
+  }
+
+  bool canOpen() const
+  {
+    return canOpenFile(isArchive(), fileName());
+  }
+
+  bool canPreview(PluginContainer& pluginContainer) const
+  {
+    return canPreviewFile(pluginContainer, isArchive(), fileName());
+  }
+
+  bool canExplore() const
+  {
+    return canExploreFile(isArchive(), fileName());
+  }
+
+private:
+  QString m_before;
+  QString m_relativeName;
+  QString m_after;
+  FileEntry::Index m_index;
+  QString m_fileName;
+  bool m_hasAltOrigins;
+  QString m_altOrigin;
+  bool m_isArchive;
+};
+
+
+class ConflictListModel : public QAbstractItemModel
+{
+public:
+  struct Column
+  {
+    QString caption;
+    const QString& (ConflictItem::*getText)() const;
+  };
+
+  ConflictListModel(QTreeView* tree, std::vector<Column> columns) :
+    m_tree(tree), m_columns(std::move(columns)),
+    m_sortColumn(-1), m_sortOrder(Qt::AscendingOrder)
+  {
+    m_tree->setModel(this);
+  }
+
+  void clear()
+  {
+    m_items.clear();
+    endResetModel();
+  }
+
+  void reserve(std::size_t s)
+  {
+    m_items.reserve(s);
+  }
+
+  QModelIndex index(int row, int col, const QModelIndex& ={}) const override
+  {
+    return createIndex(row, col);
+  }
+
+  QModelIndex parent(const QModelIndex&) const override
+  {
+    return {};
+  }
+
+  int rowCount(const QModelIndex& parent={}) const override
+  {
+    if (parent.isValid()) {
+      return 0;
+    }
+
+    return static_cast<int>(m_items.size());
+  }
+
+  int columnCount(const QModelIndex& ={}) const override
+  {
+    return static_cast<int>(m_columns.size());
+  }
+
+  QVariant data(const QModelIndex& index, int role) const override
+  {
+    if (role == Qt::DisplayRole || role == Qt::FontRole) {
+      const auto row = index.row();
+      if (row < 0) {
+        return {};
+      }
+
+      const auto i = static_cast<std::size_t>(row);
+      if (i >= m_items.size()) {
+        return {};
+      }
+
+      const auto col = index.column();
+      if (col < 0) {
+        return {};
+      }
+
+      const auto c = static_cast<std::size_t>(col);
+      if (c >= m_columns.size()) {
+        return {};
+      }
+
+      const auto& item = m_items[i];
+
+      if (role == Qt::DisplayRole) {
+        return (item.*m_columns[c].getText)();
+      } else if (role == Qt::FontRole) {
+        if (item.isArchive()) {
+          QFont f = m_tree->font();
+          f.setItalic(true);
+          return f;
+        }
+      }
+    }
+
+    return {};
+  }
+
+  QVariant headerData(int col, Qt::Orientation, int role) const
+  {
+    if (role == Qt::DisplayRole) {
+      if (col < 0) {
+        return {};
+      }
+
+      const auto i = static_cast<std::size_t>(col);
+      if (i >= m_columns.size()) {
+        return {};
+      }
+
+      return m_columns[i].caption;
+    }
+
+    return {};
+  }
+
+  void sort(int colIndex, Qt::SortOrder order=Qt::AscendingOrder)
+  {
+    m_sortColumn = colIndex;
+    m_sortOrder = order;
+
+    doSort();
+    emit layoutChanged({}, QAbstractItemModel::VerticalSortHint);
+  }
+
+  void add(ConflictItem item)
+  {
+    m_items.emplace_back(std::move(item));
+  }
+
+  void finished()
+  {
+    endResetModel();
+    doSort();
+  }
+
+  const ConflictItem* getItem(std::size_t row) const
+  {
+    if (row >= m_items.size()) {
+      return nullptr;
+    }
+
+    return &m_items[row];
+  }
+
+private:
+  QTreeView* m_tree;
+  std::vector<Column> m_columns;
+  std::vector<ConflictItem> m_items;
+  int m_sortColumn;
+  Qt::SortOrder m_sortOrder;
+
+  void doSort()
+  {
+    if (m_items.empty()) {
+      return;
+    }
+
+    if (m_sortColumn < 0) {
+      return;
+    }
+
+    const auto c = static_cast<std::size_t>(m_sortColumn);
+    if (c >= m_columns.size()) {
+      return;
+    }
+
+    const auto& col = m_columns[c];
+
+    // avoids branching on sort order while sorting
+    auto sortAsc = [&](const auto& a, const auto& b) {
+      return (naturalCompare((a.*col.getText)(), (b.*col.getText)()) < 0);
+    };
+
+    auto sortDesc = [&](const auto& a, const auto& b) {
+      return (naturalCompare((a.*col.getText)(), (b.*col.getText)()) > 0);
+    };
+
+    if (m_sortOrder == Qt::AscendingOrder) {
+      std::sort(m_items.begin(), m_items.end(), sortAsc);
+    } else {
+      std::sort(m_items.begin(), m_items.end(), sortDesc);
+    }
+  }
+};
+
+
+class OverwriteConflictListModel : public ConflictListModel
+{
+public:
+  OverwriteConflictListModel(QTreeView* tree)
+    : ConflictListModel(tree, {
+        {tr("File"), &ConflictItem::relativeName},
+        {tr("Overwritten Mods"), &ConflictItem::before}
+      })
+  {
+  }
+};
+
+
+class OverwrittenConflictListModel : public ConflictListModel
+{
+public:
+  OverwrittenConflictListModel(QTreeView* tree)
+    : ConflictListModel(tree, {
+        {tr("File"), &ConflictItem::relativeName},
+        {tr("Providing Mod"), &ConflictItem::after}
+      })
+  {
+  }
+};
+
+
+class NoConflictListModel : public ConflictListModel
+{
+public:
+  NoConflictListModel(QTreeView* tree)
+    : ConflictListModel(tree, {
+        {tr("File"), &ConflictItem::relativeName}
+      })
+  {
+  }
+};
+
+
+class AdvancedConflictListModel : public ConflictListModel
+{
+public:
+  AdvancedConflictListModel(QTreeView* tree)
+    : ConflictListModel(tree, {
+        {tr("Overwrites"), &ConflictItem::before},
+        {tr("File"), &ConflictItem::relativeName},
+        {tr("Overwritten By"), &ConflictItem::after}
+      })
+  {
+  }
+};
+
+
+std::size_t smallSelectionSize(const QTreeView* tree)
+{
+  const std::size_t too_many = std::numeric_limits<std::size_t>::max();
+
+  std::size_t n = 0;
+  const auto* sel = tree->selectionModel();
+
+  for (const auto& range : sel->selection()) {
+    n += range.height();
+
+    if (n >= max_small_selection) {
+      return too_many;
+    }
+  }
+
+  return n;
+}
+
+template <class F>
+void for_each_in_selection(QTreeView* tree, F&& f)
+{
+  const auto* sel = tree->selectionModel();
+  const auto* model = dynamic_cast<ConflictListModel*>(tree->model());
+
+  if (!model) {
+    qCritical() << "tree doesn't have a ConflictListModel";
+    return;
+  }
+
+  for (const auto& range : sel->selection()) {
+    // ranges are inclusive
+    for (int row=range.top(); row<=range.bottom(); ++row) {
+      if (auto* item=model->getItem(static_cast<std::size_t>(row))) {
+        if (!f(item)) {
+          return;
+        }
+      }
+    }
+  }
+}
+
+
+ConflictsTab::ConflictsTab(ModInfoDialogTabContext cx) :
+  ModInfoDialogTab(cx), // don't move, cx is used again
+  m_general(this, cx.ui, cx.core), m_advanced(this, cx.ui, cx.core)
+{
+  connect(
+    &m_general, &GeneralConflictsTab::modOpen,
+    [&](const QString& name){ emitModOpen(name); });
+
+  connect(
+    &m_advanced, &AdvancedConflictsTab::modOpen,
+    [&](const QString& name){ emitModOpen(name); });
+}
+
+void ConflictsTab::update()
+{
+  setHasData(m_general.update());
+  m_advanced.update();
+}
+
+void ConflictsTab::clear()
+{
+  m_general.clear();
+  m_advanced.clear();
+  setHasData(false);
+}
+
+void ConflictsTab::saveState(Settings& s)
+{
+  s.directInterface().setValue(
+    "mod_info_conflicts_tab", ui->tabConflictsTabs->currentIndex());
+
+  m_general.saveState(s);
+  m_advanced.saveState(s);
+}
+
+void ConflictsTab::restoreState(const Settings& s)
+{
+  ui->tabConflictsTabs->setCurrentIndex(
+    s.directInterface().value("mod_info_conflicts_tab", 0).toInt());
+
+  m_general.restoreState(s);
+  m_advanced.restoreState(s);
+}
+
+bool ConflictsTab::canHandleUnmanaged() const
+{
+  return true;
+}
+
+void ConflictsTab::changeItemsVisibility(QTreeView* tree, bool visible)
+{
+  bool changed = false;
+  bool stop = false;
+
+  const auto n = smallSelectionSize(tree);
+
+  qDebug().nospace().noquote()
+    << (visible ? "unhiding" : "hiding") << " "
+    << (n > max_small_selection ? "a lot of" : QString("%1").arg(n))
+    << " conflict files";
+
+  QFlags<FileRenamer::RenameFlags> flags =
+    (visible ? FileRenamer::UNHIDE : FileRenamer::HIDE);
+
+  if (n > 1) {
+    flags |= FileRenamer::MULTIPLE;
+  }
+
+  FileRenamer renamer(parentWidget(), flags);
+
+  auto* model = dynamic_cast<ConflictListModel*>(tree->model());
+  if (!model) {
+    qCritical() << "list doesn't have a ConflictListModel";
+    return;
+  }
+
+  for_each_in_selection(tree, [&](const ConflictItem* item) {
+    if (stop) {
+      return false;
+    }
+
+    auto result = FileRenamer::RESULT_CANCEL;
+
+    if (visible) {
+      if (!item->canUnhide()) {
+        qDebug().nospace() << "cannot unhide " << item->relativeName() << ", skipping";
+        return true;
+      }
+
+      result = unhideFile(renamer, item->fileName());
+
+    } else {
+      if (!item->canHide()) {
+        qDebug().nospace() << "cannot hide " << item->relativeName() << ", skipping";
+        return true;
+      }
+
+      result = hideFile(renamer, item->fileName());
+    }
+
+    switch (result) {
+      case FileRenamer::RESULT_OK: {
+        // will trigger a refresh at the end
+        changed = true;
+        break;
+      }
+
+      case FileRenamer::RESULT_SKIP: {
+        // nop
+        break;
+      }
+
+      case FileRenamer::RESULT_CANCEL: {
+        // stop right now, but make sure to refresh if needed
+        stop = true;
+        break;
+      }
+    }
+
+    return true;
+  });
+
+  qDebug().nospace() << (visible ? "unhiding" : "hiding") << " conflict files done";
+
+  if (changed) {
+    qDebug().nospace() << "triggering refresh";
+
+    if (origin()) {
+      emitOriginModified();
+    }
+
+    update();
+  }
+}
+
+void ConflictsTab::openItems(QTreeView* tree)
+{
+  // the menu item is only shown for a single selection, but handle all of them
+  // in case this changes
+  for_each_in_selection(tree, [&](const ConflictItem* item) {
+    core().executeFileVirtualized(parentWidget(), item->fileName());
+    return true;
+  });
+}
+
+void ConflictsTab::previewItems(QTreeView* tree)
+{
+  // the menu item is only shown for a single selection, but handle all of them
+  // in case this changes
+  for_each_in_selection(tree, [&](const ConflictItem* item) {
+    core().previewFileWithAlternatives(parentWidget(), item->fileName());
+    return true;
+  });
+}
+
+void ConflictsTab::exploreItems(QTreeView* tree)
+{
+  // the menu item is only shown for a single selection, but handle all of them
+  // in case this changes
+  for_each_in_selection(tree, [&](const ConflictItem* item) {
+    shell::ExploreFile(item->fileName());
+    return true;
+  });
+}
+
+void ConflictsTab::showContextMenu(const QPoint &pos, QTreeView* tree)
+{
+  auto actions = createMenuActions(tree);
+
+  QMenu menu;
+
+  // open
+  if (actions.open) {
+    connect(actions.open, &QAction::triggered, [&]{
+      openItems(tree);
+    });
+
+    menu.addAction(actions.open);
+  }
+
+  // preview
+  if (actions.preview) {
+    connect(actions.preview, &QAction::triggered, [&]{
+      previewItems(tree);
+    });
+
+    menu.addAction(actions.preview);
+  }
+
+  // explore
+  if (actions.explore) {
+    connect(actions.explore, &QAction::triggered, [&]{
+      exploreItems(tree);
+    });
+
+    menu.addAction(actions.explore);
+  }
+
+  // hide
+  if (actions.hide) {
+    connect(actions.hide, &QAction::triggered, [&]{
+      changeItemsVisibility(tree, false);
+    });
+
+    menu.addAction(actions.hide);
+  }
+
+  // unhide
+  if (actions.unhide) {
+    connect(actions.unhide, &QAction::triggered, [&]{
+      changeItemsVisibility(tree, true);
+    });
+
+    menu.addAction(actions.unhide);
+  }
+
+  // goto
+  if (actions.gotoMenu) {
+    menu.addMenu(actions.gotoMenu);
+
+    for (auto* a : actions.gotoActions) {
+      connect(a, &QAction::triggered, [&, name=a->text()]{
+        emitModOpen(name);
+       });
+
+      actions.gotoMenu->addAction(a);
+    }
+  }
+
+  if (!menu.isEmpty()) {
+    menu.exec(tree->viewport()->mapToGlobal(pos));
+  }
+}
+
+ConflictsTab::Actions ConflictsTab::createMenuActions(QTreeView* tree)
+{
+  if (tree->selectionModel()->selection().isEmpty()) {
+    return {};
+  }
+
+  bool enableHide = true;
+  bool enableUnhide = true;
+  bool enableOpen = true;
+  bool enablePreview = true;
+  bool enableExplore = true;
+  bool enableGoto = true;
+
+  const auto n = smallSelectionSize(tree);
+
+  const auto* model = dynamic_cast<ConflictListModel*>(tree->model());
+  if (!model) {
+    qCritical() << "tree doesn't have a ConflictListModel";
+    return {};
+  }
+
+  if (n == 1) {
+    // this is a single selection
+    const auto* item = model->getItem(static_cast<std::size_t>(
+      tree->selectionModel()->selectedRows()[0].row()));
+
+    if (!item) {
+      return {};
+    }
+
+    enableHide = item->canHide();
+    enableUnhide = item->canUnhide();
+    enableOpen = item->canOpen();
+    enablePreview = item->canPreview(plugin());
+    enableExplore = item->canExplore();
+    enableGoto = item->hasAlts();
+  }
+  else {
+    // this is a multiple selection, don't show open/preview so users don't open
+    // a thousand files
+    enableOpen = false;
+    enablePreview = false;
+
+    // can't explore multiple files
+    enableExplore = false;
+
+    // don't bother with this on multiple selection, at least for now
+    enableGoto = false;
+
+    if (n <= max_small_selection) {
+      // if the number of selected items is low, checking them to accurately
+      // show the menu items is worth it
+      enableHide = false;
+      enableUnhide = false;
+
+      for_each_in_selection(tree, [&](const ConflictItem* item) {
+        if (item->canHide()) {
+          enableHide = true;
+        }
+
+        if (item->canUnhide()) {
+          enableUnhide = true;
+        }
+
+        if (enableHide && enableUnhide && enableGoto) {
+          // found all, no need to check more
+          return false;
+        }
+
+        return true;
+      });
+    }
+  }
+
+  Actions actions;
+
+  actions.hide = new QAction(tr("&Hide"), parentWidget());
+  actions.hide->setEnabled(enableHide);
+
+  // note that it is possible for hidden files to appear if they override other
+  // hidden files from another mod
+  actions.unhide = new QAction(tr("&Unhide"), parentWidget());
+  actions.unhide->setEnabled(enableUnhide);
+
+  actions.open = new QAction(tr("&Open/Execute"), parentWidget());
+  actions.open->setEnabled(enableOpen);
+
+  actions.preview = new QAction(tr("&Preview"), parentWidget());
+  actions.preview->setEnabled(enablePreview);
+
+  actions.explore = new QAction(tr("Open in &Explorer"), parentWidget());
+  actions.explore->setEnabled(enableExplore);
+
+  actions.gotoMenu = new QMenu(tr("&Go to..."), parentWidget());
+  actions.gotoMenu->setEnabled(enableGoto);
+
+  if (enableGoto && n == 1) {
+    const auto* item = model->getItem(static_cast<std::size_t>(
+      tree->selectionModel()->selectedRows()[0].row()));
+
+    actions.gotoActions = createGotoActions(item);
+  }
+
+  return actions;
+}
+
+std::vector<QAction*> ConflictsTab::createGotoActions(const ConflictItem* item)
+{
+  if (!origin()) {
+    return {};
+  }
+
+  auto file = origin()->findFile(item->fileIndex());
+  if (!file) {
+    return {};
+  }
+
+
+  std::vector<QString> mods;
+  const auto& ds = *core().directoryStructure();
+
+  // add all alternatives
+  for (const auto& alt : file->getAlternatives()) {
+    const auto& o = ds.getOriginByID(alt.first);
+    if (o.getID() != origin()->getID()) {
+      mods.push_back(ToQString(o.getName()));
+    }
+  }
+
+  // add the real origin if different from this mod
+  const FilesOrigin& realOrigin = ds.getOriginByID(file->getOrigin());
+  if (realOrigin.getID() != origin()->getID()) {
+    mods.push_back(ToQString(realOrigin.getName()));
+  }
+
+  std::sort(mods.begin(), mods.end(), [](const auto& a, const auto& b) {
+    return (QString::localeAwareCompare(a, b) < 0);
+    });
+
+  std::vector<QAction*> actions;
+
+  for (const auto& name : mods) {
+    actions.push_back(new QAction(name, parentWidget()));
+  }
+
+  return actions;
+}
+
+
+GeneralConflictsTab::GeneralConflictsTab(
+  ConflictsTab* tab, Ui::ModInfoDialog* pui, OrganizerCore& oc) :
+    m_tab(tab), ui(pui), m_core(oc),
+    m_overwriteModel(new OverwriteConflictListModel(ui->overwriteTree)),
+    m_overwrittenModel(new OverwrittenConflictListModel(ui->overwrittenTree)),
+    m_noConflictModel(new NoConflictListModel(ui->noConflictTree))
+{
+  m_expanders.overwrite.set(ui->overwriteExpander, ui->overwriteTree, true);
+  m_expanders.overwritten.set(ui->overwrittenExpander, ui->overwrittenTree, true);
+  m_expanders.nonconflict.set(ui->noConflictExpander, ui->noConflictTree);
+
+  QObject::connect(
+    ui->overwriteTree, &QTreeView::doubleClicked,
+    [&](auto&& item){ onOverwriteActivated(item); });
+
+  QObject::connect(
+    ui->overwrittenTree, &QTreeView::doubleClicked,
+    [&](auto&& item){ onOverwrittenActivated(item); });
+
+  QObject::connect(
+    ui->overwriteTree, &QTreeView::customContextMenuRequested,
+    [&](const QPoint& p){ m_tab->showContextMenu(p, ui->overwriteTree); });
+
+  QObject::connect(
+    ui->overwrittenTree, &QTreeView::customContextMenuRequested,
+    [&](const QPoint& p){ m_tab->showContextMenu(p, ui->overwrittenTree); });
+
+  QObject::connect(
+    ui->noConflictTree, &QTreeView::customContextMenuRequested,
+    [&](const QPoint& p){ m_tab->showContextMenu(p, ui->noConflictTree); });
+}
+
+void GeneralConflictsTab::clear()
+{
+  m_overwriteModel->clear();
+  m_overwrittenModel->clear();
+  m_noConflictModel->clear();
+
+  ui->overwriteCount->display(0);
+  ui->overwrittenCount->display(0);
+  ui->noConflictCount->display(0);
+}
+
+void GeneralConflictsTab::saveState(Settings& s)
+{
+  QByteArray result;
+  QDataStream stream(&result, QIODevice::WriteOnly);
+
+  stream
+    << m_expanders.overwrite.opened()
+    << m_expanders.overwritten.opened()
+    << m_expanders.nonconflict.opened();
+
+  s.directInterface().setValue(
+    "mod_info_conflicts_general_expanders", result);
+
+  s.directInterface().setValue(
+    "mod_info_conflicts_general_overwrite",
+    ui->overwriteTree->header()->saveState());
+
+  s.directInterface().setValue(
+    "mod_info_conflicts_general_noconflict",
+    ui->noConflictTree->header()->saveState());
+
+  s.directInterface().setValue(
+    "mod_info_conflicts_general_overwritten",
+    ui->overwrittenTree->header()->saveState());
+}
+
+void GeneralConflictsTab::restoreState(const Settings& s)
+{
+  QDataStream stream(s.directInterface()
+    .value("mod_info_conflicts_general_expanders").toByteArray());
+
+  bool overwriteExpanded = false;
+  bool overwrittenExpanded = false;
+  bool noConflictExpanded = false;
+
+  stream >> overwriteExpanded >> overwrittenExpanded >> noConflictExpanded;
+
+  if (stream.status() == QDataStream::Ok) {
+    m_expanders.overwrite.toggle(overwriteExpanded);
+    m_expanders.overwritten.toggle(overwrittenExpanded);
+    m_expanders.nonconflict.toggle(noConflictExpanded);
+  }
+
+  ui->overwriteTree->header()->restoreState(s.directInterface()
+    .value("mod_info_conflicts_general_overwrite").toByteArray());
+
+  ui->noConflictTree->header()->restoreState(s.directInterface()
+    .value("mod_info_conflicts_general_noconflict").toByteArray());
+
+  ui->overwrittenTree->header()->restoreState(s.directInterface()
+    .value("mod_info_conflicts_general_overwritten").toByteArray());
+}
+
+bool GeneralConflictsTab::update()
+{
+  clear();
+
+  int numNonConflicting = 0;
+  int numOverwrite = 0;
+  int numOverwritten = 0;
+
+  if (m_tab->origin() != nullptr) {
+    const auto rootPath = m_tab->mod().absolutePath();
+
+    for (const auto& file : m_tab->origin()->getFiles()) {
+      // careful: these two strings are moved into createXItem() below
+      QString relativeName = QDir::fromNativeSeparators(ToQString(file->getRelativePath()));
+      QString fileName = rootPath + relativeName;
+
+      bool archive = false;
+      const int fileOrigin = file->getOrigin(archive);
+      const auto& alternatives = file->getAlternatives();
+
+      if (fileOrigin == m_tab->origin()->getID()) {
+        if (!alternatives.empty()) {
+          m_overwriteModel->add(createOverwriteItem(
+              file->getIndex(), archive,
+              std::move(fileName), std::move(relativeName), alternatives));
+
+          ++numOverwrite;
+        } else {
+          // otherwise, put the file in the noconflict tree
+            m_noConflictModel->add(createNoConflictItem(
+            file->getIndex(), archive,
+              std::move(fileName), std::move(relativeName)));
+
+          ++numNonConflicting;
+        }
+      } else {
+        m_overwrittenModel->add(createOverwrittenItem(
+          file->getIndex(), fileOrigin, archive,
+          std::move(fileName), std::move(relativeName)));
+
+        ++numOverwritten;
+      }
+    }
+
+    m_overwriteModel->finished();
+    m_overwrittenModel->finished();
+    m_noConflictModel->finished();
+  }
+
+  ui->overwriteCount->display(numOverwrite);
+  ui->overwrittenCount->display(numOverwritten);
+  ui->noConflictCount->display(numNonConflicting);
+
+  return (numOverwrite > 0 || numOverwritten > 0);
+}
+
+ConflictItem GeneralConflictsTab::createOverwriteItem(
+  FileEntry::Index index, bool archive, QString fileName, QString relativeName,
+  const FileEntry::AlternativesVector& alternatives)
+{
+  const auto& ds = *m_core.directoryStructure();
+  std::wstring altString;
+
+  for (const auto& alt : alternatives) {
+    if (!altString.empty()) {
+      altString += L", ";
+    }
+
+    altString += ds.getOriginByID(alt.first).getName();
+  }
+
+  auto origin = ToQString(ds.getOriginByID(alternatives.back().first).getName());
+
+  return ConflictItem(
+    ToQString(altString), std::move(relativeName), QString::null, index,
+    std::move(fileName), true, std::move(origin), archive);
+}
+
+ConflictItem GeneralConflictsTab::createNoConflictItem(
+  FileEntry::Index index, bool archive, QString fileName, QString relativeName)
+{
+  return ConflictItem(
+    QString::null, std::move(relativeName), QString::null, index,
+    std::move(fileName), false, QString::null, archive);
+}
+
+ConflictItem GeneralConflictsTab::createOverwrittenItem(
+  FileEntry::Index index, int fileOrigin, bool archive,
+  QString fileName, QString relativeName)
+{
+  const auto& ds = *m_core.directoryStructure();
+  const FilesOrigin& realOrigin = ds.getOriginByID(fileOrigin);
+
+  QString after = ToQString(realOrigin.getName());
+  QString altOrigin = after;
+
+  return ConflictItem(
+    QString::null, std::move(relativeName), std::move(after),
+    index, std::move(fileName), true, std::move(altOrigin), archive);
+}
+
+void GeneralConflictsTab::onOverwriteActivated(const QModelIndex& index)
+{
+  auto* model = dynamic_cast<ConflictListModel*>(ui->overwriteTree->model());
+  if (!model) {
+    return;
+  }
+
+  auto* item = model->getItem(static_cast<std::size_t>(index.row()));
+  if (!item) {
+    return;
+  }
+
+  const auto origin = item->altOrigin();
+  if (!origin.isEmpty()) {
+    emit modOpen(origin);
+  }
+}
+
+void GeneralConflictsTab::onOverwrittenActivated(const QModelIndex& index)
+{
+  auto* model = dynamic_cast<ConflictListModel*>(ui->overwrittenTree->model());
+  if (!model) {
+    return;
+  }
+
+  auto* item = model->getItem(static_cast<std::size_t>(index.row()));
+  if (!item) {
+    return;
+  }
+
+  const auto origin = item->altOrigin();
+  if (!origin.isEmpty()) {
+    emit modOpen(origin);
+  }
+}
+
+
+AdvancedConflictsTab::AdvancedConflictsTab(
+  ConflictsTab* tab, Ui::ModInfoDialog* pui, OrganizerCore& oc) :
+    m_tab(tab), ui(pui), m_core(oc),
+    m_model(new AdvancedConflictListModel(ui->conflictsAdvancedList))
+{
+  // left-elide the overwrites column so that the nearest are visible
+  ui->conflictsAdvancedList->setItemDelegateForColumn(
+    0, new ElideLeftDelegate(ui->conflictsAdvancedList));
+
+  // left-elide the file column to see filenames
+  ui->conflictsAdvancedList->setItemDelegateForColumn(
+    1, new ElideLeftDelegate(ui->conflictsAdvancedList));
+
+  // don't elide the overwritten by column so that the nearest are visible
+
+  QObject::connect(
+    ui->conflictsAdvancedShowNoConflict, &QCheckBox::clicked,
+    [&]{ update(); });
+
+  QObject::connect(
+    ui->conflictsAdvancedShowAll, &QRadioButton::clicked,
+    [&]{ update(); });
+
+  QObject::connect(
+    ui->conflictsAdvancedShowNearest, &QRadioButton::clicked,
+    [&]{ update(); });
+
+  QObject::connect(
+    ui->conflictsAdvancedList, &QTreeView::customContextMenuRequested,
+    [&](const QPoint& p){ m_tab->showContextMenu(p, ui->conflictsAdvancedList); });
+
+  m_filter.setEdit(ui->conflictsAdvancedFilter);
+  QObject::connect(&m_filter, &FilterWidget::changed, [&]{ update(); });
+}
+
+void AdvancedConflictsTab::clear()
+{
+  m_model->clear();
+}
+
+void AdvancedConflictsTab::saveState(Settings& s)
+{
+  s.directInterface().setValue(
+    "mod_info_conflicts_advanced_list",
+    ui->conflictsAdvancedList->header()->saveState());
+
+  QByteArray result;
+  QDataStream stream(&result, QIODevice::WriteOnly);
+
+  stream
+    << ui->conflictsAdvancedShowNoConflict->isChecked()
+    << ui->conflictsAdvancedShowAll->isChecked()
+    << ui->conflictsAdvancedShowNearest->isChecked();
+
+  s.directInterface().setValue(
+    "mod_info_conflicts_advanced_options", result);
+}
+
+void AdvancedConflictsTab::restoreState(const Settings& s)
+{
+  ui->conflictsAdvancedList->header()->restoreState(
+    s.directInterface().value("mod_info_conflicts_advanced_list").toByteArray());
+
+  QDataStream stream(s.directInterface()
+    .value("mod_info_conflicts_advanced_options").toByteArray());
+
+  bool noConflictChecked = false;
+  bool showAllChecked = false;
+  bool showNearestChecked = false;
+
+  stream >> noConflictChecked >> showAllChecked >> showNearestChecked;
+
+  if (stream.status() == QDataStream::Ok) {
+    ui->conflictsAdvancedShowNoConflict->setChecked(noConflictChecked);
+    ui->conflictsAdvancedShowAll->setChecked(showAllChecked);
+    ui->conflictsAdvancedShowNearest->setChecked(showNearestChecked);
+  }
+}
+
+void AdvancedConflictsTab::update()
+{
+  clear();
+
+  if (m_tab->origin() != nullptr) {
+    const auto rootPath = m_tab->mod().absolutePath();
+
+    const auto& files = m_tab->origin()->getFiles();
+    m_model->reserve(files.size());
+
+    for (const auto& file : files) {
+      // careful: these two strings are moved into createItem() below
+      QString relativeName = QDir::fromNativeSeparators(ToQString(file->getRelativePath()));
+      QString fileName = rootPath + relativeName;
+
+      bool archive = false;
+      const int fileOrigin = file->getOrigin(archive);
+      const auto& alternatives = file->getAlternatives();
+
+      auto item = createItem(
+        file->getIndex(), fileOrigin, archive,
+        std::move(fileName), std::move(relativeName), alternatives);
+
+      if (item) {
+        m_model->add(std::move(*item));
+      }
+    }
+
+    m_model->finished();
+  }
+}
+
+std::optional<ConflictItem> AdvancedConflictsTab::createItem(
+  FileEntry::Index index, int fileOrigin, bool archive,
+  QString fileName, QString relativeName,
+  const MOShared::FileEntry::AlternativesVector& alternatives)
+{
+  const auto& ds = *m_core.directoryStructure();
+
+  std::wstring before, after;
+
+  if (!alternatives.empty()) {
+    const bool showAllAlts = ui->conflictsAdvancedShowAll->isChecked();
+
+    int beforePrio = 0;
+    int afterPrio = std::numeric_limits<int>::max();
+
+    for (const auto& alt : alternatives)
+    {
+      const auto& altOrigin = ds.getOriginByID(alt.first);
+
+      if (showAllAlts) {
+        // fills 'before' and 'after' with all the alternatives that come
+        // before and after this mod in terms of priority
+
+        if (altOrigin.getPriority() < m_tab->origin()->getPriority()) {
+          // add all the mods having a lower priority than this one
+          if (!before.empty()) {
+            before += L", ";
+          }
+
+          before += altOrigin.getName();
+        } else if (altOrigin.getPriority() > m_tab->origin()->getPriority()) {
+          // add all the mods having a higher priority than this one
+          if (!after.empty()) {
+            after += L", ";
+          }
+
+          after += altOrigin.getName();
+        }
+      } else {
+        // keep track of the nearest mods that come before and after this one
+        // in terms of priority
+
+        if (altOrigin.getPriority() < m_tab->origin()->getPriority()) {
+          // the alternative has a lower priority than this mod
+
+          if (altOrigin.getPriority() > beforePrio) {
+            // the alternative has a higher priority and therefore is closer
+            // to this mod, use it
+            before = altOrigin.getName();
+            beforePrio = altOrigin.getPriority();
+          }
+        }
+
+        if (altOrigin.getPriority() > m_tab->origin()->getPriority()) {
+          // the alternative has a higher priority than this mod
+
+          if (altOrigin.getPriority() < afterPrio) {
+            // the alternative has a lower priority and there is closer
+            // to this mod, use it
+            after = altOrigin.getName();
+            afterPrio = altOrigin.getPriority();
+          }
+        }
+      }
+    }
+
+    // the primary origin is never in the list of alternatives, so it has to
+    // be handled separately
+    //
+    // if 'after' is not empty, it means at least one alternative with a higher
+    // priority than this mod was found; if the user only wants to see the
+    // nearest mods, it's not worth checking for the primary origin because it
+    // will always have a higher priority than the alternatives (or it wouldn't
+    // be the primary)
+    if (after.empty() || showAllAlts) {
+      const FilesOrigin& realOrigin = ds.getOriginByID(fileOrigin);
+
+      // if no mods overwrite this file, the primary origin is the same as this
+      // mod, so ignore that
+      if (realOrigin.getID() != m_tab->origin()->getID()) {
+        if (!after.empty()) {
+          after += L", ";
+        }
+
+        after += realOrigin.getName();
+      }
+    }
+  }
+
+  const bool hasAlts = !before.empty() || !after.empty();
+
+  if (!hasAlts) {
+    // if both before and after are empty, it means this file has no conflicts
+    // at all, only display it if the user wants it
+    if (!ui->conflictsAdvancedShowNoConflict->isChecked()) {
+      return {};
+    }
+  }
+
+  auto beforeQS = QString::fromStdWString(before);
+  auto afterQS = QString::fromStdWString(after);
+
+  const bool matched = m_filter.matches([&](auto&& what) {
+    return
+      beforeQS.contains(what, Qt::CaseInsensitive) ||
+      relativeName.contains(what, Qt::CaseInsensitive) ||
+      afterQS.contains(what, Qt::CaseInsensitive);
+    });
+
+  if (!matched) {
+    return {};
+  }
+
+  return ConflictItem(
+    std::move(beforeQS), std::move(relativeName), std::move(afterQS),
+    index, std::move(fileName), hasAlts, QString::null, archive);
+}