/builds/wireshark/wireshark/ui/qt/packet

Bug Summary

File:	builds/wireshark/wireshark/ui/qt/packet_list.cpp
Warning:	line 1520, column 20 Potential leak of memory pointed to by 'drag_label'
Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name packet_list.cpp -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -fno-delete-null-pointer-checks -mframe-pointer=all -relaxed-aliasing -fmath-errno -ffp-contract=on -fno-rounding-math -ffloat16-excess-precision=fast -fbfloat16-excess-precision=fast -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/builds/wireshark/wireshark/build -fcoverage-compilation-dir=/builds/wireshark/wireshark/build -resource-dir /usr/lib/llvm-22/lib/clang/22 -isystem /usr/include/glib-2.0 -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -isystem /builds/wireshark/wireshark/build/ui/qt -isystem /builds/wireshark/wireshark/ui/qt -isystem /builds/wireshark/wireshark/ui/qt/lua_debugger -isystem /usr/include/x86_64-linux-gnu/qt6/QtConcurrent -isystem /usr/include/x86_64-linux-gnu/qt6 -isystem /usr/include/x86_64-linux-gnu/qt6/QtCore -isystem /usr/lib/x86_64-linux-gnu/qt6/mkspecs/linux-g++ -isystem /usr/include/x86_64-linux-gnu/qt6/QtNetwork -isystem /usr/include/x86_64-linux-gnu/qt6/QtPrintSupport -isystem /usr/include/x86_64-linux-gnu/qt6/QtGui -isystem /usr/include/x86_64-linux-gnu/qt6/QtWidgets -isystem /usr/include/x86_64-linux-gnu/qt6/QtSvg -isystem /usr/include/x86_64-linux-gnu/qt6/QtMultimedia -isystem /usr/include/x86_64-linux-gnu/qt6/QtDBus -D CARES_NO_DEPRECATED -D G_DISABLE_DEPRECATED -D G_DISABLE_SINGLE_INCLUDES -D QT_CONCURRENT_LIB -D QT_CORE_LIB -D QT_DBUS_LIB -D QT_GUI_LIB -D QT_MULTIMEDIA_LIB -D QT_NETWORK_LIB -D QT_PRINTSUPPORT_LIB -D QT_SVG_LIB -D QT_WIDGETS_LIB -D WS_DEBUG -D WS_DEBUG_UTF_8 -I /builds/wireshark/wireshark/build/ui/qt/qtui_autogen/include -I /builds/wireshark/wireshark/build -I /builds/wireshark/wireshark -I /builds/wireshark/wireshark/include -D _GLIBCXX_ASSERTIONS -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/16/../../../../include/c++/16 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/16/../../../../include/x86_64-linux-gnu/c++/16 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/16/../../../../include/c++/16/backward -internal-isystem /usr/lib/llvm-22/lib/clang/22/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/16/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fmacro-prefix-map=/builds/wireshark/wireshark/= -fmacro-prefix-map=/builds/wireshark/wireshark/build/= -fmacro-prefix-map=../= -Wno-format-nonliteral -std=c++17 -fdeprecated-macro -ferror-limit 19 -fwrapv -fwrapv-pointer -fstrict-flex-arrays=3 -stack-protector 2 -fstack-clash-protection -fcf-protection=full -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -fcxx-exceptions -fexceptions -fcolor-diagnostics -analyzer-output=html -faddrsig -fdwarf2-cfi-asm -o /builds/wireshark/wireshark/sbout/2026-09-26-100308-3660-1 -x c++ /builds/wireshark/wireshark/ui/qt/packet_list.cpp
1/* packet_list.cpp
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/

10#include <ui/qt/packet_list.h>

12#include "file.h"

14#include <epan/epan.h>
15#include <epan/epan_dissect.h>

17#include <epan/column.h>
18#include <epan/expert.h>
19#include <epan/packet.h>
20#include <epan/prefs.h>
21#include <epan/proto.h>

23#include "ui/main_statusbar.h"
24#include "ui/packet_list_utils.h"
25#include "ui/preference_utils.h"
26#include "ui/recent.h"
27#include "ui/simple_dialog.h"
28#include <wsutil/utf8_entities.h>

30#include "wiretap/wtap_opttypes.h"
31#include "app/application_flavor.h"
32#include "wsutil/str_util.h"
33#include <wsutil/wslog.h>

35#include <epan/color_filters.h>

37#include <ui/qt/utils/color_utils.h>
38#include <ui/qt/utils/theme_manager.h>
39#include <ui/qt/utils/font_manager.h>
40#include <ui/qt/widgets/overlay_scroll_bar.h>
41#include "proto_tree.h"
42#include <ui/qt/utils/qt_ui_utils.h>
43#include "main_application.h"
44#include <ui/qt/utils/data_printer.h>
45#include <ui/qt/utils/frame_information.h>
46#include <ui/qt/utils/profile_switcher.h>
47#include <ui/qt/utils/variant_pointer.h>
48#include <ui/qt/models/pref_models.h>
49#include <ui/qt/widgets/packet_list_header.h>
50#include <ui/qt/utils/wireshark_mime_data.h>
51#include <ui/qt/widgets/drag_label.h>
52#include <ui/qt/filter_action.h>
53#include <ui/qt/follow_stream_action.h>
54#include <ui/qt/decode_as_dialog.h>
55#include <ui/qt/wireshark_main_window.h>

57#include <QAction>
58#include <QActionGroup>
59#include <QApplication>
60#include <QClipboard>
61#include <QContextMenuEvent>
62#include <QtCore/qmath.h>
63#include <QElapsedTimer>
64#include <QFontMetrics>
65#include <QHeaderView>
66#include <QKeyEvent>
67#include <QMessageBox>
68#include <QPainter>
69#include <QScreen>
70#include <QScrollBar>
71#include <QWheelEvent>
72#include <QTabWidget>
73#include <QTextEdit>
74#include <QTimerEvent>
75#include <QTreeWidget>
76#include <QWindow>
77#include <QJsonObject>
78#include <QJsonDocument>

80#ifdef Q_OS_WIN
81#include "wsutil/file_util.h"
82#include <QSysInfo>
83#include <uxtheme.h>
84#endif

86// To do:
87// - Fix "apply as filter" behavior.
88// - Add colorize conversation.
89// - Use a timer to trigger automatic scrolling.

91// If we ever add the ability to open multiple capture files we might be
92// able to use something like QMap<capture_file *, PacketList *> to match
93// capture files against packet lists and models.
94static PacketList *gbl_cur_packet_list;

96const int max_comments_to_fetch_ = 20000000; // Arbitrary
97const int overlay_update_interval_ = 100; // 250; // Milliseconds.
98// Turbo mode: If the user holds down the down or up key longer than the
99// activation delay, switch from the operating system's autorepeat rate to
100// our own, faster rate.
101const int turbo_activation_delay_ = 1500; // Milliseconds, somewhat arbitrary.
102// Our goal is to move to the next or previous packet as fast as possible
103// while still allowing the user to recognize changes in the hex view.
104// According to this paper on Rapid Serial Visual Presentation (RSVP), humans
105// can recognize images presented as fast as 13ms.
106// https://web.archive.org/web/20250216195443/https://mollylab-1.mit.edu/sites/default/files/documents/FastDetect2014withFigures.pdf
107// Hopefully 15ms is plenty.
108const int turbo_nav_interval_ = 15; // Milliseconds


111/*
* Given a frame_data structure, scroll to and select the row in the
* packet list corresponding to that frame.  If there is no such
* row, return false, otherwise return true.
*/
116bool
117packet_list_select_row_from_data(frame_data *fdata_needle)
118{
  if (! gbl_cur_packet_list || ! gbl_cur_packet_list->model())
      return false;

  PacketListModel* model = qobject_cast<PacketListModel*>(gbl_cur_packet_list->model());

  if (!model)
      return false;

  model->flushVisibleRows();
  int row = -1;
  if (!fdata_needle)
      row = 0;
  else
      row = model->visibleIndexOf(fdata_needle);

  if (row >= 0) {
      /* Calling ClearAndSelect with setCurrentIndex clears the "current"
       * item, but doesn't clear the "selected" item. We want to clear
       * the "selected" item as well so that selectionChanged() will be
       * emitted in order to force an update of the packet details and
       * packet bytes after a search.
       */
      gbl_cur_packet_list->selectionModel()->clearSelection();
      gbl_cur_packet_list->selectionModel()->setCurrentIndex(model->index(row, 0), QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
      gbl_cur_packet_list->scrollTo(gbl_cur_packet_list->currentIndex(), PacketList::PositionAtCenter);
      return true;
  }

  return false;
148}

150/*
* Given a field_info, select the field (which will scroll to it in
* the main ProtoTree, etc.) This is kind of an odd place for it,
* but we call this when performing Find Packet in lieu of changing the
* selected frame (the function above), because we found a match in the
* same frame as the currently selected one.
*/
157bool
158packet_list_select_finfo(field_info *fi)
159{
  if (! gbl_cur_packet_list || ! gbl_cur_packet_list->model())
      return false;

  if (fi) {
      FieldInformation finfo(fi, gbl_cur_packet_list);
      emit gbl_cur_packet_list->fieldSelected(&finfo);
  } else {
      emit gbl_cur_packet_list->fieldSelected(0);
  }
  return true;
170}

172void
173packet_list_clear(void)
174{
  if (gbl_cur_packet_list) {
      gbl_cur_packet_list->clear();
  }
178}

180void
181packet_list_freeze(void)
182{
  if (gbl_cur_packet_list) {
      gbl_cur_packet_list->freeze();
  }
186}

188void
189packet_list_thaw(void)
190{
  if (gbl_cur_packet_list) {
      gbl_cur_packet_list->thaw();
  }

  packets_bar_update();
196}

198/* Redraw the packet list *and* currently-selected detail */
199void
200packet_list_queue_draw(void)
201{
  if (gbl_cur_packet_list)
      gbl_cur_packet_list->redrawVisiblePackets();
204}

206void
207packet_list_recent_write_all(FILE *rf) {
  if (!gbl_cur_packet_list)
      return;

  gbl_cur_packet_list->writeRecent(rf);
212}

214bool
215packet_list_multi_select_active(void)
216{
  if (gbl_cur_packet_list) {
      return gbl_cur_packet_list->multiSelectActive();
  }
  return false;
221}

223#define MIN_COL_WIDTH_STR"MMMMMM" "MMMMMM"

225PacketList::PacketList(QWidget *parent) :
  QTreeView(parent),
  proto_tree_(nullptr),
  cap_file_(nullptr),
  ctx_column_(-1),
  ctx_from_pinned_row_strip_(false),
  overlay_timer_id_(0),
  turbo_timer_id_(0),
  turbo_key_(Qt::Key(0)),
  held_key_(Qt::Key(0)),
  create_near_overlay_(true),
  create_far_overlay_(true),
  mouse_pressed_at_(QModelIndex()),
  capture_in_progress_(false),
  tail_at_end_(0),
  columns_changed_(false),
  set_column_visibility_(false),
  set_style_sheet_(false),
  frozen_current_row_(QModelIndex()),
  frozen_selected_rows_(QModelIndexList()),
  pinned_rows_model_(nullptr),
  pinned_column_boundary_(0),
  pinned_column_view_(nullptr),
  pinned_row_view_(nullptr),
  pinned_row_corner_view_(nullptr),
  hovered_frame_num_(-1),
  cur_history_(-1),
  in_history_(false),
  finfo_array(nullptr),
  profile_switcher_(nullptr)
255{
  setItemsExpandable(false);
  setRootIsDecorated(false);
  setSortingEnabled(prefs.gui_packet_list_sortable);
  setUniformRowHeights(true);
  setFocusPolicy(Qt::StrongFocus);
  // Needed so mouseMoveEvent() fires on a plain hover (no button held),
  // to track hovered_frame_num_ for the cross-pane hover highlight.
  setMouseTracking(true);

265#ifdef Q_OS_MAC
  setAttribute(Qt::WA_MacShowFocusRect, true);
267#endif

  verticalScrollBar()->setFocusPolicy(Qt::NoFocus);
  horizontalScrollBar()->setFocusPolicy(Qt::NoFocus);

  packet_list_header_ = new PacketListHeader(header()->orientation());
  connect(packet_list_header_, &PacketListHeader::resetColumnWidth, this, &PacketList::setRecentColumnWidth);
  connect(packet_list_header_, &PacketListHeader::updatePackets, this, &PacketList::updatePackets);
  connect(packet_list_header_, &PacketListHeader::showColumnPreferences, this, &PacketList::showProtocolPreferences);
  connect(packet_list_header_, &PacketListHeader::editColumn, this, &PacketList::editColumn);
  connect(packet_list_header_, &PacketListHeader::columnsChanged, this, &PacketList::columnsChanged);
  setHeader(packet_list_header_);

  header()->setFirstSectionMovable(true);

  setSelectionMode(QAbstractItemView::ExtendedSelection);

  // Shrink down to a small but nonzero size in the main splitter.
  int one_em = fontMetrics().height();
  setMinimumSize(one_em, one_em);

  overlay_sb_ = new OverlayScrollBar(Qt::Vertical, this);
  setVerticalScrollBar(overlay_sb_);

  header()->setSortIndicator(-1, Qt::AscendingOrder);

  packet_list_model_ = new PacketListModel(this, cap_file_);
  setModel(packet_list_model_);

  Q_ASSERT(gbl_cur_packet_list == Q_NULLPTR)((gbl_cur_packet_list == nullptr) ? static_cast<void>(0
) : ::qt_assert("gbl_cur_packet_list == Q_NULLPTR", "ui/qt/packet_list.cpp"
, 296));
  gbl_cur_packet_list = this;

  connect(packet_list_model_, &PacketListModel::goToPacket, this, [=](int packet) { goToPacket(packet); });
  connect(mainApp, &MainApplication::addressResolutionChanged, this, &PacketList::redrawVisiblePacketsDontSelectCurrent);
  connect(mainApp, &MainApplication::columnDataChanged, this, &PacketList::redrawVisiblePacketsDontSelectCurrent);
  connect(mainApp, &MainApplication::preferencesChanged, this, [=]() {
      /* The pref is a uint but QCache maxCost is a signed int (/
       * qsizetype in Qt 6). Note that QAbstractItemModel row numbers
       * are ints, not unsigned ints, so we're limited to INT_MAX
       * rows anyway.
       */
      PacketListRecord::setMaxCache(prefs.gui_packet_list_cached_rows_max > INT_MAX2147483647 ? INT_MAX2147483647 : prefs.gui_packet_list_cached_rows_max);
      if ((bool) (prefs.gui_packet_list_sortable) != isSortingEnabled()) {
          setSortingEnabled(prefs.gui_packet_list_sortable);
      }
  });

  connect(header(), &QHeaderView::sectionResized, this, &PacketList::sectionResized);
  connect(header(), &QHeaderView::sectionMoved, this, &PacketList::sectionMoved);
  // The frozen column view's own header is a separate QHeaderView and
  // doesn't automatically follow this one's sort indicator (the arrow
  // icon), so keep it mirrored whenever a click on the real header (not
  // just sortByColumnFromOverlay()) changes it.
  connect(header(), &QHeaderView::sortIndicatorChanged, this, [this](int column, Qt::SortOrder order) {
      if (pinned_column_view_) {
          pinned_column_view_->mirrorSortIndicator(column, order);
      }
  });

  connect(verticalScrollBar(), &QScrollBar::actionTriggered, this, &PacketList::vScrollBarActionTriggered);

  connect(packet_list_header_, &PacketListHeader::freezeColumnsToHere, this, &PacketList::setPinnedColumnBoundary);
  connect(packet_list_header_, &PacketListHeader::unfreezeColumns, this, [this]() { setPinnedColumnBoundary(0); });

  pinned_rows_model_ = new PinnedRowsModel(this);
  pinned_rows_model_->setSourceModel(packet_list_model_);
  // Filtering (modelReset) and sorting (layoutChanged) on the source
  // model both need the pinned set re-resolved/re-ordered to match.
  connect(packet_list_model_, &QAbstractItemModel::modelReset, this, &PacketList::updatePinnedRowVisibility);
  connect(packet_list_model_, &QAbstractItemModel::layoutChanged, this, &PacketList::updatePinnedRowVisibility);

  pinned_column_view_ = new PinnedColumnView(this, this);
  pinned_column_view_->setModel(packet_list_model_);
  pinned_column_view_->setSelectionModel(selectionModel());

  connect(verticalScrollBar(), &QScrollBar::valueChanged, pinned_column_view_, &PinnedColumnView::setVerticalScrollValue);

  // Own the font: seed it now and follow the FontManager for later changes.
  connect(FontManager::instance(), &FontManager::monospaceFontChanged, this, &PacketList::setMonospaceFont);
  connect(FontManager::instance(), &FontManager::applicationFontChanged, this, &PacketList::setRegularFont);
  setMonospaceFont(FontManager::zoomedMonospaceFont());
  setRegularFont(FontManager::zoomedFont());

  // isActiveWindow()/QEvent::ActivationChange can lag behind the actual
  // activation state on some platforms until the next event loop
  // iteration, so also track focus moving to/from the application
  // entirely to keep the pinned overlay views' selection color synced.
  connect(qApp(static_cast<QApplication *>(QCoreApplication::instance
())), &QApplication::focusChanged, this, &PacketList::applicationFocusChanged);
355}

357void PacketList::setPinnedRowViews(PinnedRowView *row_view, PinnedRowView *corner_view)
358{
  pinned_row_view_ = row_view;
  pinned_row_corner_view_ = corner_view;

  if (pinned_row_view_) {
      pinned_row_view_->setModel(pinned_rows_model_);
      connect(horizontalScrollBar(), &QScrollBar::valueChanged, pinned_row_view_, &PinnedRowView::setHorizontalScrollValue);
  }
  if (pinned_row_corner_view_) {
      pinned_row_corner_view_->setModel(pinned_rows_model_);
  }
369}

371QList<QTreeView *> PacketList::pinnedOverlayViews() const
372{
  QList<QTreeView *> views;
  if (pinned_column_view_) {
      views << pinned_column_view_;
  }
  if (pinned_row_view_) {
      views << pinned_row_view_;
  }
  if (pinned_row_corner_view_) {
      views << pinned_row_corner_view_;
  }
  return views;
384}

386void PacketList::repaintPinnedOverlays()
387{
  for (QTreeView *view : pinnedOverlayViews()) {
      view->viewport()->update();
  }
391}

393void PacketList::mirrorSectionWidthToOverlays(int column, int width)
394{
  if (pinned_column_view_) {
      pinned_column_view_->mirrorSectionWidth(column, width);
  }
  if (pinned_row_view_) {
      pinned_row_view_->mirrorSectionWidth(column, width);
  }
  if (pinned_row_corner_view_) {
      pinned_row_corner_view_->mirrorSectionWidth(column, width);
  }
404}

406PacketList::~PacketList()
407{
  if (finfo_array)
  {
      g_ptr_array_free(finfo_array, true);
  }
412}

414void PacketList::scrollTo(const QModelIndex &index, QAbstractItemView::ScrollHint hint)
415{
  /* QAbstractItemView doesn't have a way to indicate "auto scroll, but
   * only vertically." So just restore the horizontal scroll value whenever
   * it scrolls.
   */
  setUpdatesEnabled(false);
  int horizVal = horizontalScrollBar()->value();
  QTreeView::scrollTo(index, hint);
  horizontalScrollBar()->setValue(horizVal);
  setUpdatesEnabled(true);
425}

427void PacketList::colorsChanged()
428{
  const QString c_active   = "active";
  const QString c_inactive = "!active";

  const QString flat_style_format =
      "QTreeView::item:selected:%1 {"
      "  color: %2;"
      "  background-color: %3;"
      "}";

  // Same as flat_style_format but with no :active/:!active selector at
  // all, for the overlay panes (see applyOverlayActiveState()).
  const QString plain_style_format =
      "QTreeView::item:selected {"
      "  color: %1;"
      "  background-color: %2;"
      "}";

  ThemeManager *tm = ThemeManager::instance();
  QColor active_bg   = tm->color(ThemeManager::PacketsSelection);
  QColor inactive_bg = tm->color(ThemeManager::PacketsInactive);
  QColor active_fg   = tm->color(ThemeManager::PacketsSelectionText);
  QColor inactive_fg = tm->color(ThemeManager::PacketsInactiveText);

  QString active_style = flat_style_format.arg(
                             c_active,
                             active_fg.name(),
                             active_bg.name());
  QString inactive_style = flat_style_format.arg(
                               c_inactive,
                               inactive_fg.name(),
                               inactive_bg.name());

  // Hover highlighting is painted manually in drawRow() (driven by
  // hovered_frame_num_) rather than through a :hover stylesheet
  // selector, since the mouse hovering a pinned overlay view needs to
  // highlight the corresponding row in every pane, not just the one
  // widget Qt considers "hovered".
  QString full_style = active_style + inactive_style;

  // Cache the plain flat colors (no :active/:!active selector -- see
  // applyOverlayActiveState()) so window-activation changes can pick the
  // right one without recomputing from ThemeManager every time.
  overlay_active_flat_style_ = plain_style_format.arg(active_fg.name(), active_bg.name());
  overlay_inactive_flat_style_ = plain_style_format.arg(inactive_fg.name(), inactive_bg.name());

  set_style_sheet_ = true;
  setStyleSheet(full_style);
  set_style_sheet_ = false;

  applyOverlayActiveState();
479#if \
  ( \
  (QT_VERSION((6<<16)|(10<<8)|(2)) >= QT_VERSION_CHECK(6, 5, 4)((6<<16)|(5<<8)|(4)) && QT_VERSION((6<<16)|(10<<8)|(2)) < QT_VERSION_CHECK(6, 6, 0)((6<<16)|(6<<8)|(0))) \
  || (QT_VERSION((6<<16)|(10<<8)|(2)) >= QT_VERSION_CHECK(6, 6, 1)((6<<16)|(6<<8)|(1))) \
  )
  // https://bugreports.qt.io/browse/QTBUG-122109
  // Affects Qt 6.5.4 and later, 6.6.1 and later.
  // When setting the style sheet, all visible sections are set
  // to the new minimum DefaultSectionSize (even if it hasn't
  // changed.) So make sure the new widths aren't saved to recent
  // and then restore from recent.
  applyRecentColumnWidths();
  setColumnVisibility();
492#endif
493}

495void PacketList::applyOverlayActiveState()
496{
  // Match the plain flat_style_format(":active"/:!active") selectors
  // applied to this view itself, which are keyed to whether THIS widget
  // has focus (not just whether the window is active) -- Qt's
  // :active/:!active tracks the same thing per-widget. Clicking into the
  // packet details/bytes pane keeps the window active but moves focus
  // away from PacketList, and the overlay panes should dim along with
  // it, not stay "focused" on their own.
  const QString &style = (hasFocus() && isActiveWindow()) ? overlay_active_flat_style_ : overlay_inactive_flat_style_;
  if (pinned_column_view_) {
      pinned_column_view_->setStyleSheet(style);
  }
  if (pinned_row_view_) {
      pinned_row_view_->setStyleSheet(style);
  }
  if (pinned_row_corner_view_) {
      pinned_row_corner_view_->setStyleSheet(style);
  }
514}

516void PacketList::changeEvent(QEvent *event)
517{
  QTreeView::changeEvent(event);

  if (event->type() == QEvent::ActivationChange) {
      applyOverlayActiveState();
  }
523}

525void PacketList::applicationFocusChanged(QWidget *, QWidget *)
526{
  applyOverlayActiveState();
528}

530QString PacketList::joinSummaryRow(QStringList col_parts, int row, SummaryCopyType type)
531{
  QString copy_text;
  switch (type) {
  case CopyAsCSV:
      copy_text = "\"";
      copy_text += col_parts.join("\",\"");
      copy_text += "\"";
      break;
  case CopyAsYAML:
      copy_text = "----\n";
      copy_text += QStringLiteral("# Packet %1 from %2\n")(QString(QtPrivate::qMakeStringPrivate(u"" "# Packet %1 from %2\n"
))).arg(row).arg(cap_file_->filename);
      copy_text += "- ";
      copy_text += col_parts.join("\n- ");
      copy_text += "\n";
      break;
  case CopyAsText:
  default:
      copy_text = col_parts.join("\t");
  }

  return copy_text;
552}

554void PacketList::drawRow (QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
555{
  QTreeView::drawRow(painter, option, index);

  // The hover highlight is driven by hovered_frame_num_ rather than Qt's
  // native per-widget hover state, since the mouse hovering a pinned
  // overlay view needs to highlight this row here too -- native :hover
  // styling only ever reacts to the mouse being over this specific
  // widget. Painted even on a selected row so hover wins over selection,
  // matching the pre-ThemeManager behavior (see the old :selected:hover
  // stylesheet rule this replaced -- "background-color: ...;
  // color: palette(text);"). Uses ColorUtils::paintFlatCell() rather
  // than re-invoking each column's delegate with overridden palette
  // roles -- QStyledItemDelegate::paint() calls initStyleOption(),
  // which re-fetches Qt::BackgroundRole from the model and clobbers any
  // backgroundBrush/palette override made beforehand, so a colored,
  // marked, or ignored row's own background always won that fight and
  // showed through instead of the flat hover color.
  if (prefs.gui_packet_list_hover_style && index.isValid()) {
      frame_data *fdata = getFDataForRow(index.row());
      if (fdata && (int)fdata->num == hovered_frame_num_) {
          QColor hover_bg = ColorUtils::hoverBackground();
          QColor text_color = palette().color(QPalette::Text);

          for (int visual_col = 0; visual_col < header()->count(); visual_col++) {
              int logical_col = header()->logicalIndex(visual_col);
              if (isColumnHidden(logical_col)) {
                  continue;
              }
              QModelIndex col_index = index.siblingAtColumn(logical_col);
              QStyleOptionViewItem col_option = option;
              col_option.rect = visualRect(col_index);
              ColorUtils::paintFlatCell(painter, this, col_option, col_index, hover_bg, text_color);
          }
      }
  }

  if (prefs.gui_packet_list_separator) {
      QRect rect = visualRect(index);

      painter->setPen(QColor(Qt::white));
      painter->drawLine(0, rect.y() + rect.height() - 1, width(), rect.y() + rect.height() - 1);
  }
597}

599void PacketList::setProtoTree (ProtoTree *proto_tree) {
  proto_tree_ = proto_tree;

  connect(proto_tree_, &ProtoTree::goToPacket, this, [=](int packet) { goToPacket(packet); });
  connect(proto_tree_, &ProtoTree::relatedFrame,
          &related_packet_delegate_, &RelatedPacketDelegate::addRelatedFrame);
605}

607bool PacketList::uniqueSelectActive()
608{
  return selectionModel()->selectedRows(0).count() == 1 ? true : false;
610}

612bool PacketList::multiSelectActive()
613{
  return selectionModel()->selectedRows(0).count() > 1 ? true : false;
615}

617QList<int> PacketList::selectedRows(bool useFrameNum)
618{
  QList<int> rows;
  if (selectionModel() && selectionModel()->hasSelection())
  {
      foreach (QModelIndex idx, selectionModel()->selectedRows(0))for (auto _container_622 = QtPrivate::qMakeForeachContainer(selectionModel
()->selectedRows(0)); _container_622.i != _container_622.e
; ++_container_622.i) if (QModelIndex idx = *_container_622.i
; false) {} else
      {
          if (idx.isValid())
          {
              if (! useFrameNum)
                  rows << idx.row();
              else if (useFrameNum)
              {
                  frame_data * frame = getFDataForRow(idx.row());
                  if (frame)
                      rows << frame->num;
              }
          }
      }
  }
  else if (currentIndex().isValid())
  {
      //
      // XXX - will we ever have a current index but not a selection
      // model?
      //
      if (! useFrameNum)
          rows << currentIndex().row();
      else
      {
          frame_data *frame = getFDataForRow(currentIndex().row());
          if (frame)
              rows << frame->num;
      }
  }

  return rows;
654}

656int PacketList::currentFrameNum() const
657{
  if (!cap_file_ || !cap_file_->current_frame) {
      return -1;
  }
  return (int)cap_file_->current_frame->num;
662}

664void PacketList::selectionChanged (const QItemSelection & selected, const QItemSelection & deselected)
665{
  QTreeView::selectionChanged(selected, deselected);

  // The pinned overlay views share this view's selection model, but each
  // is a separate QAbstractItemView with its own viewport; force a
  // repaint there too so the highlight always shows on both sides of a
  // freeze boundary, regardless of which view the selection change
  // originated from.
  repaintPinnedOverlays();

  if (!cap_file_) return;

  int row = -1;
  static bool multiSelect = false;

  if (selectionModel())
  {
      QModelIndexList selRows = selectionModel()->selectedRows(0);
      if (selRows.count() > 1)
      {
          QList<int> rows;
          foreach (QModelIndex idx, selRows)for (auto _container_686 = QtPrivate::qMakeForeachContainer(selRows
); _container_686.i != _container_686.e; ++_container_686.i) if
 (QModelIndex idx = *_container_686.i; false) {} else
          {
              if (idx.isValid())
                  rows << idx.row();
          }

          emit framesSelected(rows);
          emit fieldSelected(0);
          cf_unselect_packet(cap_file_);

          /* We have to repaint the content while changing state, as some delegates react to multi-select */
          if (! multiSelect)
          {
              related_packet_delegate_.clear();
              viewport()->update();
          }

          multiSelect = true;

          return;
      }
      else if (selRows.count() > 0 && selRows.at(0).isValid())
      {
          multiSelect = false;
          row = selRows.at(0).row();
      }

      /* Handling empty selection */
      if (selRows.count() <= 0)
      {
          /* Nothing selected, but multiSelect is still active */
          if (multiSelect)
          {
              multiSelect = false;
              if (currentIndex().isValid())
              {
                  selectionModel()->select(currentIndex(), QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows );
                  return;
              }
          }
          /* Nothing selected, so in WS <= 3.0 nothing was indicated as well */
          else if (currentIndex().isValid())
          {
              setCurrentIndex(QModelIndex());
          }
      }
  }

  if (row < 0 || !packet_list_model_)
      cf_unselect_packet(cap_file_);
  else {
      frame_data * fdata = packet_list_model_->getRowFdata(row);
      cf_select_packet(cap_file_, fdata);
  }

  if (cap_file_->current_frame) {
      updateHistory(cap_file_->current_frame->num);
  }

  related_packet_delegate_.clear();

  // The previous dissection state has been invalidated by cf_select_packet
  // above, receivers must clear the previous state and apply the updated one.
  emit framesSelected(QList<int>() << row);

  if (!cap_file_->edt) {
      viewport()->update();
      emit fieldSelected(0);
      return;
  }

  if (cap_file_->edt->tree) {
      packet_info *pi = &cap_file_->edt->pi;
      related_packet_delegate_.setCurrentFrame(pi->num);
      conversation_t *conv = find_conversation_pinfo_ro(pi, 0);
      if (conv) {
          related_packet_delegate_.setConversation(conv);
      }
      viewport()->update();
  }

  if (cap_file_->search_in_progress) {
      field_info *fi = NULL__null;

      if (cap_file_->string && cap_file_->decode_data) {
          // The tree where the target string matched one of the labels was discarded in
          // match_protocol_tree() so we have to search again in the latest tree.
          fi = cf_find_string_protocol_tree(cap_file_, cap_file_->edt->tree);
      } else if (cap_file_->search_len != 0) {
          // Find the finfo that corresponds to our byte.
          // The match can span multiple fields (and a single byte can
          // match more than one field.) Our behavior is to find the last
          // field in the tree (so hopefully spanning fewer bytes) that
          // matches the last byte in the search match.
          // (regex search can find a zero length match not at the
          // start of the frame if lookbehind is used, but
          // proto_find_field_from_offset doesn't match such a field
          // and it's not clear which field we would want to match.)
          fi = proto_find_field_from_offset(cap_file_->edt->tree, cap_file_->search_pos + cap_file_->search_len - 1,
                                            cap_file_->edt->tvb);
      }

      if (fi) {
          FieldInformation finfo(fi, this);
          emit fieldSelected(&finfo);
      } else {
          emit fieldSelected(0);
      }
  } else if (proto_tree_) {
      proto_tree_->restoreSelectedField();
  }
797}

799void PacketList::contextMenuEvent(QContextMenuEvent *event)
800{
  const char *module_name = NULL__null;

  if (finfo_array)
  {
      g_ptr_array_free(finfo_array, true);
      finfo_array = NULL__null;
  }

  QModelIndex ctxIndex = indexAt(event->pos());

  if (selectionModel() && selectionModel()->selectedRows(0).count() > 1)
      selectionModel()->select(ctxIndex, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);

  // ctxIndex is invalid when this is called via showContextMenuForFrame()
  // for a pinned packet that's been filtered out of this view entirely
  // (no row here to resolve via indexAt()/getRowFdata()) -- fall back to
  // whatever frame was actually selected (by selectFrameFromOverlay(),
  // just before this runs), which for that case is exactly the pinned
  // packet's own frame, resolved independently of any row here.
  frame_data *ctx_row_fdata = ctxIndex.isValid() ?
      packet_list_model_->getRowFdata(ctxIndex.row()) :
      (cap_file_ ? cap_file_->current_frame : nullptr);

  // frameData will be owned by one of the submenus, see below.
  FrameInformation * frameData =
          new FrameInformation(new CaptureFile(this, cap_file_), ctx_row_fdata);

  QMenu * ctx_menu = new QMenu(this);
  ctx_menu->setAttribute(Qt::WA_DeleteOnClose);
  // XXX We might want to reimplement setParent() and fill in the context
  // menu there.
  ctx_menu->addAction(window()->findChild<QAction *>("actionEditMarkSelected"));
  ctx_menu->addAction(window()->findChild<QAction *>("actionEditIgnoreSelected"));
  ctx_menu->addAction(window()->findChild<QAction *>("actionEditSetTimeReference"));
  ctx_menu->addAction(window()->findChild<QAction *>("actionEditTimeShift"));
  ctx_menu->addMenu(window()->findChild<QMenu *>("menuPacketComment"));

  ctx_menu->addSeparator();

  // Code for custom context menus from Lua's register_packet_menu()
  MainWindow * mainWindow = mainApp->mainWindow();
  // N.B., will only call for a single frame selection,
  if (cap_file_ && cap_file_->edt && cap_file_->edt->tree) {
      finfo_array = proto_all_finfos(cap_file_->edt->tree);
      if (mainWindow) {
          bool insertedPacketMenu = mainWindow->addPacketMenus(ctx_menu, finfo_array);
          if (insertedPacketMenu) {
              ctx_menu->addSeparator();
          }
      }
  }

  ctx_menu->addAction(window()->findChild<QAction *>("actionViewEditResolvedName"));

  frame_data *ctx_fdata = ctx_row_fdata;
  if (ctx_fdata) {
      bool rowPinned = pinned_rows_model_->isPinned((int)ctx_fdata->num);
      bool maxReached = !rowPinned && pinned_rows_model_->pinnedCount() >= PinnedRowsModel::kMaxPinnedRows;
      QString pin_label = rowPinned ? tr("Unpin Row")
                         : maxReached ? tr("Pin Row to Top (max %1 reached)").arg(PinnedRowsModel::kMaxPinnedRows)
                         : tr("Pin Row to Top");
      QAction *pin_action = ctx_menu->addAction(pin_label);
      pin_action->setEnabled(!maxReached);
      connect(pin_action, &QAction::triggered, this, [this, rowPinned]() {
          if (rowPinned) {
              unpinSelectedRows();
          } else {
              pinSelectedRows();
          }
      });
  }

  // Shown only for a context menu request that actually originated from
  // the pinned-row strip (PinnedRowView) itself -- not the frozen-column
  // overlay or a direct right-click on the primary view -- since
  // scrolling the main view to a packet already visible there (or
  // clearing every pinned row) doesn't make sense as an action offered
  // from either of those.
  if (ctx_from_pinned_row_strip_ && ctx_fdata) {
      int ctx_frame_num = ctx_fdata->num;
      QAction *goto_action = ctx_menu->addAction(tr("Go to Packet"));
      connect(goto_action, &QAction::triggered, this, [this, ctx_frame_num]() {
          goToPacket(ctx_frame_num);
      });
  }
  if (ctx_from_pinned_row_strip_ && pinned_rows_model_->pinnedCount() > 0) {
      QAction *unpin_all_action = ctx_menu->addAction(tr("Unpin All Rows"));
      connect(unpin_all_action, &QAction::triggered, this, &PacketList::unpinAllRows);
  }
  // Reset for the next context menu request: showContextMenuForRow()/
  // showContextMenuForFrame() set this immediately before calling here,
  // but a direct right-click on the primary view calls this override
  // straight from Qt's own event dispatch, bypassing both wrappers
  // entirely -- so it can't be reset at entry the way ctx_column_ is,
  // only after this one use.
  ctx_from_pinned_row_strip_ = false;

  ctx_menu->addSeparator();

  QString selectedfilter = getFilterFromRowAndColumn(currentIndex());

  if (! hasFocus() && cap_file_ && cap_file_->finfo_selected) {
      char *tmp_field = proto_construct_match_selected_string(cap_file_->finfo_selected, cap_file_->edt);
      selectedfilter = QString(tmp_field);
      wmem_free(NULL__null, tmp_field);
  }

  bool have_filter_expr = !selectedfilter.isEmpty();
  ctx_menu->addMenu(FilterAction::createFilterMenu(FilterAction::ActionApply, selectedfilter, have_filter_expr, ctx_menu));
  ctx_menu->addMenu(FilterAction::createFilterMenu(FilterAction::ActionPrepare, selectedfilter, have_filter_expr, ctx_menu));

  const char *conv_menu_name = "menuConversationFilter";
  QMenu * main_menu_item = window()->findChild<QMenu *>(conv_menu_name);
  conv_menu_.setTitle(main_menu_item->title());
  conv_menu_.setObjectName(conv_menu_name);
  ctx_menu->addMenu(&conv_menu_);

  const char *colorize_menu_name = "menuColorizeConversation";
  main_menu_item = window()->findChild<QMenu *>(colorize_menu_name);
  colorize_menu_.setTitle(main_menu_item->title());
  colorize_menu_.setObjectName(colorize_menu_name);
  ctx_menu->addMenu(&colorize_menu_);

  QMenu * submenu;
  main_menu_item = window()->findChild<QMenu *>("menuSCTP");
  if (main_menu_item) {
      submenu = new QMenu(main_menu_item->title(), ctx_menu);
      ctx_menu->addMenu(submenu);
      submenu->addAction(window()->findChild<QAction *>("actionSCTPAnalyseThisAssociation"));
      submenu->addAction(window()->findChild<QAction *>("actionSCTPShowAllAssociations"));
      submenu->addAction(window()->findChild<QAction *>("actionSCTPFilterThisAssociation"));
  }

  main_menu_item = window()->findChild<QMenu *>("menuFollow");
  if (main_menu_item) {
      submenu = new QMenu(main_menu_item->title(), ctx_menu);
      ctx_menu->addMenu(submenu);
      foreach (FollowStreamAction *follow_action, main_menu_item->findChildren<FollowStreamAction *>())for (auto _container_938 = QtPrivate::qMakeForeachContainer(main_menu_item
->findChildren<FollowStreamAction *>()); _container_938
.i != _container_938.e; ++_container_938.i) if (FollowStreamAction
 *follow_action = *_container_938.i; false) {} else {
          /* XXX: We could, like the prefs above, walk the protocols/layers
           * and add the follow actions in the order they appear in the packet.
           */
          if (follow_action->isEnabled()) {
              submenu->addAction(follow_action);
          }
      }
  }

  ctx_menu->addSeparator();

  main_menu_item = window()->findChild<QMenu *>("menuEditCopy");
  submenu = new QMenu(main_menu_item->title(), ctx_menu);
  submenu->setToolTipsVisible(true);
  ctx_menu->addMenu(submenu);

  QAction * action = submenu->addAction(tr("Summary as Text"));
  action->setData(CopyAsText);
  connect(action, &QAction::triggered, this, &PacketList::copySummary);
  action = submenu->addAction(tr("…as CSV"));
  action->setData(CopyAsCSV);
  connect(action, &QAction::triggered, this, &PacketList::copySummary);
  action = submenu->addAction(tr("…as YAML"));
  action->setData(CopyAsYAML);
  connect(action, &QAction::triggered, this, &PacketList::copySummary);
  action = submenu->addAction(tr("…as HTML"));
  action->setData(CopyAsHTML);
  connect(action, &QAction::triggered, this, &PacketList::copySummary);
  submenu->addSeparator();

  submenu->addAction(window()->findChild<QAction *>("actionEditCopyAsFilter"));
  submenu->addSeparator();

  QActionGroup * copyEntries = DataPrinter::copyActions(this, frameData);
  submenu->addActions(copyEntries->actions());
  copyEntries->setParent(submenu);
  frameData->setParent(submenu);

  if (application_flavor_is_wireshark()) {
      /* i.e., Wireshark only */
      ctx_menu->addSeparator();
      QMenu *proto_prefs_menus = new QMenu(ProtocolPreferencesMenu::tr("Protocol Preferences"), ctx_menu);

      if (cap_file_ && cap_file_->edt && cap_file_->edt->tree) {
          QList<QString> added_proto_prefs;
          // N.B. finfo_array will be assigned above
          for (unsigned i = 0; i < finfo_array->len; i++) {
              field_info *fi = (field_info *)g_ptr_array_index (finfo_array, i)((finfo_array)->pdata)[i];
              const header_field_info *hfinfo =  fi->hfinfo;

              if (prefs_is_registered_protocol(hfinfo->abbrev)) {
                  if (hfinfo->parent == -1) {
                      module_name = hfinfo->abbrev;
                  } else {
                      module_name = proto_registrar_get_abbrev(hfinfo->parent);
                  }

                  if (added_proto_prefs.contains(module_name)) {
                      continue;
                  }

                  ProtocolPreferencesMenu *proto_prefs_menu = new ProtocolPreferencesMenu(hfinfo->name, module_name, proto_prefs_menus);

                  connect(proto_prefs_menu, &ProtocolPreferencesMenu::showProtocolPreferences,
                          this, &PacketList::showProtocolPreferences);
                  connect(proto_prefs_menu, SIGNAL(editProtocolPreference(pref_t*,module_t*))qFlagLocation("2" "editProtocolPreference(pref_t*,module_t*)"
 "\0" "ui/qt/packet_list.cpp" ":" "1004"),
                          this, SIGNAL(editProtocolPreference(pref_t*,module_t*))qFlagLocation("2" "editProtocolPreference(pref_t*,module_t*)"
 "\0" "ui/qt/packet_list.cpp" ":" "1005"));

                  proto_prefs_menus->addMenu(proto_prefs_menu);
                  added_proto_prefs << module_name;
              }
          }
      }
      ctx_menu->addMenu(proto_prefs_menus);
      action = ctx_menu->addAction(tr("Decode As…"));
      action->setProperty("create_new", QVariant(true));
      connect(action, &QAction::triggered, this, &PacketList::ctxDecodeAsDialog);
      // "Print" not ported intentionally
      action = window()->findChild<QAction *>("actionViewShowPacketInNewWindow");
      ctx_menu->addAction(action);
  }

  // Set menu sensitivity for the current column and set action data.
  if (frameData)
      emit framesSelected(QList<int>() << frameData->frameNum());
  else
      emit framesSelected(QList<int>());

  ctx_menu->popup(event->globalPos());
1028}

1030void PacketList::ctxDecodeAsDialog()
1031{
  QAction *da_action = qobject_cast<QAction*>(sender());
  if (! da_action)
      return;
  bool create_new = da_action->property("create_new").toBool();

  DecodeAsDialog *da_dialog = new DecodeAsDialog(this, cap_file_, create_new);
  connect(da_dialog, &DecodeAsDialog::destroyed, mainApp, &MainApplication::flushAppSignals);
  da_dialog->setWindowModality(Qt::ApplicationModal);
  da_dialog->setAttribute(Qt::WA_DeleteOnClose);
  da_dialog->show();
1042}

1044void PacketList::timerEvent(QTimerEvent *event)
1045{
  if (event->timerId() == overlay_timer_id_) {
      if (!capture_in_progress_ && model() != nullptr) {
          if (create_near_overlay_) drawNearOverlay();
          if (create_far_overlay_) drawFarOverlay();
      }
  } else if (event->timerId() == turbo_timer_id_) {
      QKeyEvent turbo_step(QEvent::KeyPress, turbo_key_, Qt::NoModifier, QString(), true);
      QTreeView::keyPressEvent(&turbo_step);
  } else {
      QTreeView::timerEvent(event);
  }
1057}

1059void PacketList::paintEvent(QPaintEvent *event)
1060{
  // XXX This is overkill, but there are quite a few events that
  // require a new overlay, e.g. page up/down, scrolling, column
  // resizing, etc.
  create_near_overlay_ = true;
  QTreeView::paintEvent(event);
1066}

1068void PacketList::mousePressEvent(QMouseEvent *event)
1069{
  QTreeView::mousePressEvent(event);

  QModelIndex curIndex = indexAt(event->pos());
  mouse_pressed_at_ = curIndex;

  bool midButton = (event->buttons() & Qt::MiddleButton) == Qt::MiddleButton;
  if (midButton && cap_file_ && packet_list_model_)
  {
      packet_list_model_->toggleFrameMark(QModelIndexList() << curIndex);

      // Make sure the packet list's frame.marked related field text is updated.
      redrawVisiblePackets();

      create_far_overlay_ = true;
      packets_bar_update();
  }
1086}

1088void PacketList::mouseReleaseEvent(QMouseEvent *event) {
  QTreeView::mouseReleaseEvent(event);

  mouse_pressed_at_ = QModelIndex();
1092}

1094// The pinned overlay views (PinnedColumnView/PinnedRowView) are separate
1095// QTreeViews that only ever show a slice of the real content, laid out
1096// independently of the primary view. Translating pixel coordinates from an
1097// overlay's click into this view's coordinate space is unreliable -- their
1098// row geometry can drift by a row even when the two appear visually
1099// aligned (e.g. differing sub-pixel scroll remainders). Instead, the
1100// overlay resolves the row itself via its own (always-correct, since it's
1101// local) indexAt(), and these entry points act on that row/index directly
1102// within this view, exactly as a real click here would.
1103void PacketList::selectRowFromOverlay(int row, int column, Qt::MouseButtons buttons,
                                     Qt::KeyboardModifiers modifiers)
1105{
  QModelIndex index = model()->index(row, column);
  if (!index.isValid()) {
      return;
  }

  // Selecting a pinned packet (the whole point of pinning it) shouldn't
  // yank the primary view's scroll position to wherever that packet
  // happens to be -- setCurrentIndex() below scrolls to make the new
  // current index visible (QAbstractItemView's normal behavior for
  // e.g. arrow-key navigation), which is exactly what a click in the
  // pinned strip should NOT do. Save and restore the vertical scroll
  // position around it, the same way scrollTo() already does for the
  // horizontal one.
  int vert_scroll_value = verticalScrollBar()->value();

  mouse_pressed_at_ = index;

  // Mirrors the same three cases native ExtendedSelection handles for a
  // plain click (no modifier/Ctrl/Shift) -- this view's own
  // mousePressEvent() can't be relied on here since the click actually
  // landed in a different, overlay widget (PinnedRowView/
  // PinnedColumnView), which forwards here instead of letting
  // QAbstractItemView's native handling run.
  //
  // setCurrentIndex(QModelIndex) (the view-level convenience method) always
  // re-applies its own ClearAndSelect internally, which would immediately
  // clobber the Toggle/Select calls below -- moving "current" without
  // touching the selection just made requires going through
  // QItemSelectionModel::setCurrentIndex() directly with an explicit
  // NoUpdate flag instead.
  if (modifiers & Qt::ShiftModifier) {
      QModelIndex from = currentIndex().isValid() ? currentIndex() : index;
      selectionModel()->select(QItemSelection(from, index),
                                QItemSelectionModel::Select | QItemSelectionModel::Rows);
      selectionModel()->setCurrentIndex(index, QItemSelectionModel::NoUpdate | QItemSelectionModel::Current);
  } else if (modifiers & Qt::ControlModifier) {
      selectionModel()->select(index, QItemSelectionModel::Toggle | QItemSelectionModel::Rows);
      selectionModel()->setCurrentIndex(index, QItemSelectionModel::NoUpdate | QItemSelectionModel::Current);
  } else {
      setCurrentIndex(index);
      selectionModel()->select(index, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
  }

  verticalScrollBar()->setValue(vert_scroll_value);
  // Keep keyboard focus on the primary view so the selection highlight
  // always renders in its "active" color, regardless of which pane the
  // click that produced this selection landed in.
  setFocus();

  // The pinned-row views draw their own selection highlight by reading
  // currentFrameNum()/selectedRows() directly (see PinnedRowView::drawRow()),
  // rather than sharing this view's QItemSelectionModel, so updating that
  // state above doesn't itself trigger a repaint there -- request one
  // explicitly, the same way setHoveredFrameNum() already does for hover.
  repaintPinnedOverlays();

  if (buttons & Qt::MiddleButton) {
      packet_list_model_->toggleFrameMark(QModelIndexList() << index);
      redrawVisiblePackets();
      create_far_overlay_ = true;
      packets_bar_update();
  }
1168}

1170void PacketList::selectFramesFromOverlay(const QList<int> &frame_nums)
1171{
  if (!packet_list_model_) {
      return;
  }

  // Builds one QItemSelection out of each frame's own (single-row)
  // selection range rather than one spanning QItemSelection(first, last):
  // a single range only ever expresses a contiguous rectangle in one
  // model's row space, so there's no way to ask it for "just these
  // sparse primary-view rows" directly -- each frame number (already
  // resolved by the caller to just the pinned rows actually within a
  // strip-scoped Shift-click range, see
  // PinnedRowView::mousePressEvent()) is resolved to its own primary-view
  // row here, which naturally excludes any unpinned row that happens to
  // sit between them there. Accumulated into one QItemSelection and
  // applied via a single select() call (rather than clearSelection() +
  // one select() per frame) so selectionChanged() -- which does real
  // work per call, e.g. rebuilding and emitting framesSelected() -- only
  // fires once for the whole batch, not once per frame.
  QItemSelection combined;
  QModelIndex last_valid_index;
  for (int frame_num : frame_nums) {
      int row = packet_list_model_->packetNumberToRow(frame_num);
      if (row < 0) {
          // Filtered out of the primary view -- no row here to add to
          // the shared QItemSelectionModel for it, same documented
          // limitation selectFrameFromOverlay() already carries for a
          // single filtered-out pinned row.
          continue;
      }
      QModelIndex row_index = model()->index(row, 0);
      combined.select(row_index, row_index);
      last_valid_index = row_index;
  }

  // Matches selectRowFromOverlay()/selectFrameFromOverlay(), which both
  // update or clear this: stale drag-select state left over from an
  // earlier real click on this view itself shouldn't be mistaken for a
  // drag matching whatever row a later mouseMoveEvent() lands on (see
  // mouse_pressed_at_'s own comment and its use at line ~1431).
  mouse_pressed_at_ = QModelIndex();
  selectionModel()->select(combined, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);

  if (last_valid_index.isValid()) {
      selectionModel()->setCurrentIndex(last_valid_index,
                                         QItemSelectionModel::NoUpdate | QItemSelectionModel::Current);
  }
  setFocus();

  // The pinned-row views draw their own selection highlight by reading
  // currentFrameNum()/selectedRows() directly (see PinnedRowView::drawRow()),
  // rather than sharing this view's QItemSelectionModel, so updating that
  // state above doesn't itself trigger a repaint there -- request one
  // explicitly, the same way setHoveredFrameNum() already does for hover.
  repaintPinnedOverlays();
1226}

1228void PacketList::selectFrameFromOverlay(int frame_num, Qt::KeyboardModifiers /* modifiers */)
1229{
  if (!cap_file_ || !packet_list_model_) {
      return;
  }

  PacketListRecord *record = packet_list_model_->physicalRecordForFrameNum(frame_num);
  frame_data *fdata = record ? record->frameData() : nullptr;
  if (!fdata) {
      return;
  }

  // Clear any real selection in this view's own model: the frame being
  // selected may not even have a row here (it can be filtered out), so
  // there's no index to select instead. Mirrors the "nothing selected"
  // path selectionChanged() takes for row < 0.
  selectionModel()->clearSelection();
  setCurrentIndex(QModelIndex());
  mouse_pressed_at_ = QModelIndex();
  setFocus();

  // The pinned-row views draw their own selection highlight by reading
  // currentFrameNum()/selectedRows() directly (see PinnedRowView::drawRow()),
  // rather than sharing this view's QItemSelectionModel, so updating that
  // state above doesn't itself trigger a repaint there -- request one
  // explicitly, the same way setHoveredFrameNum() already does for hover.
  repaintPinnedOverlays();

  // cf_select_packet() works directly against the capture file's own
  // frame array and is independent of the display filter/QModelIndex
  // entirely -- unlike selectionChanged()'s row-based path, which can
  // only ever resolve a frame that currently has a row in this view.
  cf_select_packet(cap_file_, fdata);

  // This adds a frame to the history even if it's filtered out and not in
  // the main view. Such a frame will be skipped by have[Next|Previous]History
  // and thus go[Next|Previous]HistoryPacket, but is preserved in the history
  // for when the filter changes. To make goToHistory work for frames which
  // are filtered out but still pinned would take more work.
  if (cap_file_->current_frame) {
      updateHistory(cap_file_->current_frame->num);
  }

  related_packet_delegate_.clear();

  // The previous dissection state has been invalidated by
  // cf_select_packet() above; receivers must clear the previous state
  // and apply the updated one. The emitted value is a frame number
  // here, not a row -- consistent with contextMenuEvent()'s own
  // framesSelected() emit further down, and safe because every
  // receiver (DataSourceTab, ProtoTree, MainStatusBar, etc.) only
  // checks the list's count and then reads cap_file_->edt/current_frame
  // directly, never the integer values themselves.
  emit framesSelected(QList<int>() << frame_num);

  if (!cap_file_->edt) {
      viewport()->update();
      emit fieldSelected(0);
      return;
  }

  if (cap_file_->edt->tree) {
      packet_info *pi = &cap_file_->edt->pi;
      related_packet_delegate_.setCurrentFrame(pi->num);
      conversation_t *conv = find_conversation_pinfo_ro(pi, 0);
      if (conv) {
          related_packet_delegate_.setConversation(conv);
      }
      viewport()->update();
  }

  if (proto_tree_) {
      proto_tree_->restoreSelectedField();
  } else {
      emit fieldSelected(0);
  }
1304}

1306void PacketList::showContextMenuForRow(int row, const QPoint &global_pos, bool from_pinned_row_strip)
1307{
  QModelIndex index = model()->index(row, 0);
  if (!index.isValid()) {
      return;
  }

  ctx_from_pinned_row_strip_ = from_pinned_row_strip;

  // visualRect() is this view's own geometry query, so it can't drift
  // the way a translated cross-view pixel position could; it guarantees
  // contextMenuEvent()'s own indexAt() resolves back to this exact row.
  QPoint local_pos = visualRect(index).center();
  QContextMenuEvent translated(QContextMenuEvent::Mouse, local_pos, global_pos);
  contextMenuEvent(&translated);
1321}

1323void PacketList::showContextMenuForFrame(int frame_num, const QPoint &global_pos, bool from_pinned_row_strip)
1324{
  ctx_from_pinned_row_strip_ = from_pinned_row_strip;

  // Select the frame first so cap_file_->current_frame/edt reflect it --
  // contextMenuEvent() falls back to cap_file_->current_frame whenever
  // indexAt() resolves to an invalid index (see below), which is
  // exactly what happens for a pinned packet with no row in this view
  // at all (i.e. filtered out).
  selectFrameFromOverlay(frame_num);

  // A position guaranteed to resolve to an invalid index via
  // indexAt(), same idea as showContextMenuForRow() using a real row's
  // visualRect() to guarantee the opposite. contextMenuEvent() then
  // uses the ctx_row_fdata fallback to cap_file_->current_frame set by
  // selectFrameFromOverlay() above instead of a row-based lookup.
  QPoint local_pos(-1, -1);
  QContextMenuEvent translated(QContextMenuEvent::Mouse, local_pos, global_pos);
  contextMenuEvent(&translated);
1342}

1344// header_pos must already be in packet_list_header_'s (the real, primary
1345// header's) own coordinate space by the time it reaches each forwarder
1346// below -- every caller (PinnedColumnHeader, and PacketListPane's
1347// duplicate_header_corner_/duplicate_header_main_ event filter) is
1348// responsible for translating its own local position into that space
1349// first, since each has a different relationship to it (PinnedColumnHeader
1350// and duplicate_header_corner_ both start at the frozen boundary the same
1351// way packet_list_header_'s own unscrolled columns [0, boundary) do;
1352// duplicate_header_main_ instead starts at the boundary itself and must
1353// add its own width). See PacketList::frozenHeaderPosToReal() for the
1354// shared translation helper used by PinnedColumnHeader.
1355QPoint PacketList::frozenHeaderPosToReal(const QPoint &frozen_pos) const
1356{
  int logical_index = pinned_column_view_->header()->logicalIndexAt(frozen_pos);
  if (logical_index < 0) {
      return frozen_pos;
  }
  int real_x = packet_list_header_->sectionViewportPosition(logical_index)
      + (frozen_pos.x() - pinned_column_view_->header()->sectionViewportPosition(logical_index));
  return QPoint(real_x, frozen_pos.y());
1364}

1366void PacketList::forwardHeaderContextMenu(QContextMenuEvent *event, const QPoint &header_pos)
1367{
  // event->globalPos() (from the original click, wherever it actually
  // happened on screen) rather than packet_list_header_->mapToGlobal(
  // header_pos): the latter assumes the real header is on-screen at its
  // usual position, which isn't true when this request originated from
  // duplicate_header_ (PacketListPane's stand-in header shown above the
  // pinned-rows strip while the real one is hidden) -- that would pop
  // the menu up at the real header's location instead of where the user
  // actually right-clicked.
  QContextMenuEvent translated(event->reason(), header_pos, event->globalPos(), event->modifiers());
  packet_list_header_->showContextMenuAt(&translated);
1378}

1380void PacketList::forwardHeaderMousePress(QMouseEvent *event, const QPoint &header_pos)
1381{
  // Temporarily disable click-to-sort on the real header: forwarding
  // press/release here is only meant to drive its resize-drag state
  // machine (needed so a frozen column's resize actually changes the
  // shared column width). QHeaderView's mouseReleaseEvent does its own
  // native click-to-sort detection as a side effect of the same event,
  // which would otherwise double up with the explicit
  // sortByColumnFromOverlay() call and cancel it out.
  packet_list_header_->setSectionsClickable(false);
  QMouseEvent translated(event->type(), header_pos, packet_list_header_->mapToGlobal(header_pos),
                          event->button(), event->buttons(), event->modifiers());
  packet_list_header_->forwardMousePressEvent(&translated);
1393}

1395void PacketList::forwardHeaderMouseMove(QMouseEvent *event, const QPoint &header_pos)
1396{
  QMouseEvent translated(event->type(), header_pos, packet_list_header_->mapToGlobal(header_pos),
                          event->button(), event->buttons(), event->modifiers());
  packet_list_header_->forwardMouseMoveEvent(&translated);
1400}

1402void PacketList::forwardHeaderMouseRelease(QMouseEvent *event, const QPoint &header_pos)
1403{
  QMouseEvent translated(event->type(), header_pos, packet_list_header_->mapToGlobal(header_pos),
                          event->button(), event->buttons(), event->modifiers());
  packet_list_header_->forwardMouseReleaseEvent(&translated);
  packet_list_header_->setSectionsClickable(true);
1408}

1410void PacketList::forwardWheelEvent(QWheelEvent *event)
1411{
  QTreeView::wheelEvent(event);
1413}

1415void PacketList::sortByColumnFromOverlay(int column)
1416{
  if (!isSortingEnabled()) {
      return;
  }

  Qt::SortOrder order = Qt::AscendingOrder;
  if (header()->sortIndicatorSection() == column) {
      order = (header()->sortIndicatorOrder() == Qt::AscendingOrder) ? Qt::DescendingOrder : Qt::AscendingOrder;
  }
  header()->setSortIndicator(column, order);

  // The frozen column view's own header is a separate QHeaderView, so it
  // needs its sort indicator (the arrow icon) set explicitly to match --
  // it doesn't automatically follow the primary header's indicator.
  if (pinned_column_view_) {
      pinned_column_view_->mirrorSortIndicator(column, order);
  }
1433}

1435void PacketList::mouseMoveEvent (QMouseEvent *event)
1436{
  QModelIndex curIndex = indexAt(event->pos());
  frame_data *hovered_fdata = curIndex.isValid() ? getFDataForRow(curIndex.row()) : nullptr;
1
'?' condition is true→
  int new_hovered_frame_num = hovered_fdata ? (int)hovered_fdata->num : -1;
2
←
Assuming 'hovered_fdata' is null→
3
←
'?' condition is false→
  if (new_hovered_frame_num != hovered_frame_num_) {
4
←
Assuming 'new_hovered_frame_num' is equal to field 'hovered_frame_num_'→
      hovered_frame_num_ = new_hovered_frame_num;
      viewport()->update();
      repaintPinnedOverlays();
  }

  if (event->buttons() & Qt::LeftButton && curIndex.isValid() && curIndex == mouse_pressed_at_)
5
←
Assuming the condition is true→
6
←
Taking true branch→
  {
      ctx_column_ = curIndex.column();
      QMimeData * mimeData = new QMimeData();
      DragLabel * drag_label = nullptr;

      QString filter = getFilterFromRowAndColumn(curIndex);
      QList<int> rows = selectedRows();
      if (rows.count() > 1)
7
←
Assuming the condition is false→
8
←
Taking false branch→
      {
          QStringList entries;
          foreach (int row, rows)for (auto _container_1457 = QtPrivate::qMakeForeachContainer(
rows); _container_1457.i != _container_1457.e; ++_container_1457
.i) if (int row = *_container_1457.i; false) {} else
          {
              QModelIndex idx = model()->index(row, 0);
              if (! idx.isValid())
                  continue;

              QString entry = createSummaryText(idx, CopyAsText);
              entries << entry;
          }

          if (entries.count() > 0)
              mimeData->setText(entries.join("\n"));
      }
      else if (! filter.isEmpty())
9
←
Assuming the condition is true→
10
←
Taking true branch→
      {
          QString abbrev;
          QString name = model()->headerData(curIndex.column(), header()->orientation()).toString();

          if (! filter.isEmpty())
11
←
Assuming the condition is false→
12
←
Taking false branch→
          {
              abbrev = filter.left(filter.indexOf(' '));
          }
          else
          {
              filter = model()->data(curIndex).toString().toLower();
              abbrev = filter;
          }

          mimeData->setText(filter);

          QJsonObject filterData;
          filterData["filter"] = filter;
          filterData["name"] = abbrev;
          filterData["description"] = name;

          mimeData->setData(WiresharkMimeData::DisplayFilterMimeType, QJsonDocument(filterData).toJson());
          drag_label = new DragLabel(QStringLiteral("%1\n%2")(QString(QtPrivate::qMakeStringPrivate(u"" "%1\n%2"))).arg(name, abbrev), this);
13
←
Memory is allocated→
      }
      else
      {
          QString text = model()->data(curIndex).toString();
          if (! text.isEmpty())
              mimeData->setText(text);
      }

      if (mimeData->hasText() || mimeData->hasFormat(WiresharkMimeData::DisplayFilterMimeType))
14
←
Assuming the condition is false→
15
←
Assuming the condition is false→
16
←
Taking false branch→
      {
          QDrag * drag = new QDrag(this);
          drag->setMimeData(mimeData);
          if (drag_label)
          {
              qreal dpr = window()->windowHandle()->devicePixelRatio();
              QPixmap pixmap= QPixmap(drag_label->size() * dpr);
              pixmap.setDevicePixelRatio(dpr);
              drag_label->render(&pixmap);
              drag->setPixmap(pixmap);
              delete drag_label;
          }

          drag->exec(Qt::CopyAction);
      }
      else
      {
          delete mimeData;
17
←
Potential leak of memory pointed to by 'drag_label'
      }
  }
1523}

1525void PacketList::leaveEvent(QEvent *event)
1526{
  QTreeView::leaveEvent(event);

  if (hovered_frame_num_ != -1) {
      hovered_frame_num_ = -1;
      viewport()->update();
      repaintPinnedOverlays();
  }
1534}

1536void PacketList::setHoveredRowFromOverlay(int row)
1537{
  frame_data *fdata = (row >= 0) ? getFDataForRow(row) : nullptr;
  setHoveredFrameNum(fdata ? (int)fdata->num : -1);
1540}

1542void PacketList::setHoveredFrameNum(int frame_num)
1543{
  if (frame_num == hovered_frame_num_) {
      return;
  }

  hovered_frame_num_ = frame_num;
  viewport()->update();
  repaintPinnedOverlays();
1551}

1553void PacketList::keyPressEvent(QKeyEvent *event)
1554{
  // XXX Add support for Qt::Key_F7 and Qt::Key_F8
  bool nav_key = (event->key() == Qt::Key_Up || event->key() == Qt::Key_Down);

  if (nav_key && event->isAutoRepeat()) {
      Qt::Key key = static_cast<Qt::Key>(event->key());

      if (turbo_timer_id_ != 0 && key == turbo_key_) {
          // We're handling autorepeat ourselves.
          event->accept();
          return;
      }

      if (turbo_timer_id_ == 0 && key == held_key_ && key_hold_elapsed_.isValid() &&
          key_hold_elapsed_.hasExpired(turbo_activation_delay_)) {
          turbo_key_ = key;
          turbo_timer_id_ = startTimer(turbo_nav_interval_);
          event->accept();
          return;
      }
  }

  QTreeView::keyPressEvent(event);

  if (nav_key && !event->isAutoRepeat()) {
      held_key_ = static_cast<Qt::Key>(event->key());
      key_hold_elapsed_.start();
  }

  if (event->matches(QKeySequence::Copy))
  {
      QStringList content, htmlContent;
      if (model() && selectionModel() && selectionModel()->hasSelection())
      {
          QList<int> rows;
          QModelIndexList selRows = selectionModel()->selectedRows(0);
          foreach(QModelIndex row, selRows)for (auto _container_1590 = QtPrivate::qMakeForeachContainer(
selRows); _container_1590.i != _container_1590.e; ++_container_1590
.i) if (QModelIndex row = *_container_1590.i; false) {} else
              rows.append(row.row());

          QStringList hdr_parts;
          QList<int> align_parts, size_parts;

          switch (prefs.gui_packet_list_copy_format_options_for_keyboard_shortcut) {
          case COPY_FORMAT_TEXT:
          case COPY_FORMAT_HTML:
              if (prefs.gui_packet_list_copy_text_with_aligned_columns) {
                  hdr_parts = createHeaderPartsForAligned();
                  align_parts = createAlignmentPartsForAligned();
                  size_parts = createSizePartsForAligned(false, hdr_parts, rows);
              }
              if (prefs.gui_packet_list_copy_format_options_for_keyboard_shortcut == COPY_FORMAT_HTML) {
                  htmlContent << createDefaultStyleForHtml();
                  htmlContent << createOpeningTagForHtml();
              }
              break;
          case COPY_FORMAT_CSV:
          case COPY_FORMAT_YAML:
              break;
          }

          QList<QStringList> entries;
          foreach(int row, rows)for (auto _container_1615 = QtPrivate::qMakeForeachContainer(
rows); _container_1615.i != _container_1615.e; ++_container_1615
.i) if (int row = *_container_1615.i; false) {} else
          {
              QModelIndex idx = model()->index(row, 0);
              if (! idx.isValid())
                  continue;

              switch (prefs.gui_packet_list_copy_format_options_for_keyboard_shortcut) {
              case COPY_FORMAT_TEXT:
              case COPY_FORMAT_HTML:
                  if (prefs.gui_packet_list_copy_text_with_aligned_columns)
                      content << createSummaryForAligned(idx, align_parts, size_parts);
                  else
                      content << createSummaryText(idx, CopyAsText);
                  if (prefs.gui_packet_list_copy_format_options_for_keyboard_shortcut == COPY_FORMAT_HTML)
                      htmlContent << createSummaryForHtml(idx);
                  break;
              case COPY_FORMAT_CSV:
                  content << createSummaryText(idx, CopyAsCSV);
                  break;
              case COPY_FORMAT_YAML:
                  content << createSummaryText(idx, CopyAsYAML);
                  break;
              }
          }
      }

      if (prefs.gui_packet_list_copy_format_options_for_keyboard_shortcut == COPY_FORMAT_HTML) {
          // htmlContent will never be empty as they will always have style and table tags
          QMimeData *mimeData = new QMimeData;
          htmlContent << createClosingTagForHtml();
          mimeData->setHtml(htmlContent.join('\n'));
          mimeData->setText(content.join('\n').append("\n"));
          mainApp->clipboard()->setMimeData(mimeData, QClipboard::Clipboard);
      }
      else {
          if (content.count() > 0) {
              QString copy_text;
              if (prefs.gui_packet_list_copy_format_options_for_keyboard_shortcut == COPY_FORMAT_YAML) {
                  copy_text = content.join("");
              }
              else {
                  copy_text = content.join("\n");
               copy_text += "\n";
              }
              mainApp->clipboard()->setText(copy_text);
          }
      }
  }
1663}

1665void PacketList::keyReleaseEvent(QKeyEvent *event)
1666{
  if (!event->isAutoRepeat() && event->key() == held_key_) {
      if (turbo_timer_id_ != 0 && event->key() == turbo_key_) {
          killTimer(turbo_timer_id_);
          turbo_timer_id_ = 0;
      }
      held_key_ = Qt::Key(0);
      key_hold_elapsed_.invalidate();
  }

  QTreeView::keyReleaseEvent(event);
1677}

1679void PacketList::focusInEvent(QFocusEvent *event)
1680{
  QTreeView::focusInEvent(event);

  if (event->reason() == Qt::TabFocusReason || event->reason() == Qt::BacktabFocusReason) {
      if (model() && model()->rowCount() > 0 && selectionModel()) {
          if (!selectionModel()->hasSelection()) {
              QModelIndex first = model()->index(0, 0);
              if (first.isValid()) {
                  selectionModel()->setCurrentIndex(first, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
                  setCurrentIndex(first);
              }
          }

          // ALWAYS scroll to the current index if we have one
          if (currentIndex().isValid()) {
              scrollTo(currentIndex());
          }
      }
  }
1699}

1701void PacketList::focusOutEvent(QFocusEvent *event)
1702{
  if (turbo_timer_id_ != 0) {
      killTimer(turbo_timer_id_);
      turbo_timer_id_ = 0;
  }
  held_key_ = Qt::Key(0);
  key_hold_elapsed_.invalidate();

  QTreeView::focusOutEvent(event);
1711}

1713void PacketList::resizeEvent(QResizeEvent *event)
1714{
  create_near_overlay_ = true;
  create_far_overlay_ = true;
  QTreeView::resizeEvent(event);
  layoutPinnedOverlays();
1719}

1721void PacketList::setColumnVisibility()
1722{
  set_column_visibility_ = true;
  for (unsigned i = 0; i < prefs.num_cols; i++) {
      bool hidden = get_column_visible(i) ? false : true;
      bool frozen = isColumnFrozen((int)i, pinned_column_boundary_);
      setColumnHidden(i, hidden);
      if (pinned_column_view_) {
          pinned_column_view_->setColumnHidden(i, hidden || !frozen);
      }
      if (pinned_row_view_) {
          pinned_row_view_->setColumnHidden(i, hidden || frozen);
      }
      if (pinned_row_corner_view_) {
          pinned_row_corner_view_->setColumnHidden(i, hidden || !frozen);
      }
      emit columnHiddenChanged(i, hidden);
  }
  setColumnDelegate();
  set_column_visibility_ = false;
1741}

1743void PacketList::setColumnDelegate()
1744{
  for (unsigned i = 0; i < prefs.num_cols; i++) {
      setItemDelegateForColumn(i, nullptr);   // Reset all delegates
  }

  // Multi-color delegate takes precedence over related packet delegate (row stripes only, not scrollbar-only mode)
  if (prefs.gui_packet_list_multi_color_mode == PACKET_LIST_MULTI_COLOR_MODE_FULL ||
      prefs.gui_packet_list_multi_color_mode == PACKET_LIST_MULTI_COLOR_MODE_SHIFT_RIGHT) {
      for (unsigned i = 0; i < prefs.num_cols; i++) {
          if (get_column_visible(i)) {
              setItemDelegateForColumn(i, &multi_color_delegate_);
          }
      }
  }
  else if (prefs.gui_packet_list_show_related) {
      for (unsigned i = 0; i < prefs.num_cols; i++) {
          if (get_column_visible(i)) {
              setItemDelegateForColumn(i, &related_packet_delegate_);
              break;  // Set the delegate only on the first visible column
          }
      }
  }

  for (unsigned i = 0; i < prefs.num_cols; i++) {
      QAbstractItemDelegate *col_delegate = itemDelegateForColumn(i);
      if (!col_delegate) {
          continue;
      }
      for (QTreeView *view : pinnedOverlayViews()) {
          view->setItemDelegateForColumn(i, col_delegate);
      }
  }
1776}

1778void PacketList::setRecentColumnWidth(int col)
1779{
  int col_width = recent_get_column_width(col);

  if (col_width < 1) {
      int fmt = get_column_format(col);
      const char *long_str = get_column_width_string(fmt, col);

      // TODO: a column's natural width is model data, not a view concern.
      // PacketListModel should hint it instead of the view measuring against
      // the font here.
      QFontMetrics fm = QFontMetrics(FontManager::monospaceFont());
      if (long_str) {
          col_width = fm.horizontalAdvance(long_str);
      } else {
          col_width = fm.horizontalAdvance(MIN_COL_WIDTH_STR"MMMMMM");
      }
      // Custom delegate padding
      if (itemDelegateForColumn(col)) {
          QStyleOptionViewItem option;
          initViewItemOption(&option);
          // This is adding "how much width hinted for an empty index, plus
          // the decoration, plus any padding between the decoration and
          // normal display?" Many styles however have a non zero hint for
          // an empty index, so this isn't quite right. What we really want
          // is a size hint for an index whose data is the string above, and
          // to just use that for the width.
          col_width += itemDelegateForColumn(col)->sizeHint(option, QModelIndex()).width();
      }
  }

  setColumnWidth(col, col_width);
1810}

1812void PacketList::drawCurrentPacket()
1813{
  // XXX - Update for multi-select? If more than one packet is Selected,
  // this changes it so that only the Current packet is Selected.
  QModelIndex current_index = currentIndex();
  if (selectionModel() && current_index.isValid()) {
      selectionModel()->clearSelection();
      selectionModel()->setCurrentIndex(current_index, QItemSelectionModel::SelectCurrent | QItemSelectionModel::Rows);
  }
1821}

1823// Redraw the packet list and detail.  Re-selects the current packet (causes
1824// the UI to scroll to that packet).
1825// Called from many places.
1826void PacketList::redrawVisiblePackets() {
  redrawVisiblePacketsDontSelectCurrent();
  drawCurrentPacket();
1829}

1831// Redraw the packet list and detail.
1832// Does not scroll back to the selected packet.
1833void PacketList::redrawVisiblePacketsDontSelectCurrent() {
  packet_list_model_->invalidateAllColumnStrings();
1835}

1837void PacketList::resetColumns()
1838{
  packet_list_model_->resetColumns();
1840}

1842// Return true if we have a visible packet further along in the history.
1843bool PacketList::haveNextHistory(bool update_cur)
1844{
  if (selection_history_.size() < 1 || cur_history_ >= selection_history_.size() - 1) {
      return false;
  }

  for (int i = cur_history_ + 1; i < selection_history_.size(); i++) {
      if (packet_list_model_->packetNumberToRow(selection_history_.at(i)) >= 0) {
          if (update_cur) {
              cur_history_ = i;
          }
          return true;
      }
  }
  return false;
1858}

1860// Return true if we have a visible packet back in the history.
1861bool PacketList::havePreviousHistory(bool update_cur)
1862{
  if (selection_history_.size() < 1 || cur_history_ < 1) {
      return false;
  }

  for (int i = cur_history_ - 1; i >= 0; i--) {
      if (packet_list_model_->packetNumberToRow(selection_history_.at(i)) >= 0) {
          if (update_cur) {
              cur_history_ = i;
          }
          return true;
      }
  }
  return false;
1876}

1878void PacketList::updateHistory(int frame_num)
1879{
  // We could call this from currentChanged, but we can't *just* update the
  // history from currentChanged, because the pinned rows can add to the
  // history a row that isn't in the main view (and thus never becomes the
  // currentIndex.)
  if (in_history_)
      return;

  if (!selection_history_.isEmpty()) {
      if (frame_num == selection_history_.constLast()) {
          return;
      }
  }

  cur_history_++;
  selection_history_.append(frame_num);
1895}

1897void PacketList::setProfileSwitcher(ProfileSwitcher *profile_switcher)
1898{
  profile_switcher_ = profile_switcher;
  if (profile_switcher) {
      connect(packet_list_model_, &PacketListModel::packetAppended, profile_switcher_, &ProfileSwitcher::checkPacket);
  }
1903}

1905frame_data *PacketList::getFDataForRow(int row) const
1906{
  return packet_list_model_->getRowFdata(row);
1908}

1910// prefs.col_list has changed.
1911void PacketList::columnsChanged()
1912{
  columns_changed_ = true;
  column_register_fields();
  mainApp->emitAppSignal(MainApplication::FieldsChanged);
  if (!cap_file_) {
      // Keep columns_changed_ = true until we load a capture file.
      return;
  }

  prefs.num_cols = g_list_length(prefs.col_list);
  col_cleanup(&cap_file_->cinfo);
  build_column_format_array(&cap_file_->cinfo, prefs.num_cols, false);
  create_far_overlay_ = true;
  resetColumns();
  applyRecentColumnWidths();
  setColumnVisibility();
  // Freezing is defined purely positionally ("the first N columns"), and
  // this signal doesn't say which column(s) actually changed -- a
  // removal, addition, or reorder can each change which logical columns
  // now sit at positions [0, pinned_column_boundary_), so there's no way
  // to tell from here whether the frozen set still means what the user
  // last chose. Unfreezing unconditionally is conservative (it also
  // clears a freeze that a change elsewhere in the column list didn't
  // actually affect), but guarantees the frozen set is never silently
  // wrong. setPinnedColumnBoundary() also re-syncs the pinned overlays
  // and duplicate header pair to match.
  if (pinned_column_boundary_ > 0) {
      setPinnedColumnBoundary(0);
  }
  columns_changed_ = false;
1942}

1944// Fields have changed, update custom columns
1945void PacketList::fieldsChanged(capture_file *cf)
1946{
  // hfids used by custom columns or by the _ws.col fields may have changed,
  // so recreate the columns. We shouldn't need to if prefs.col_list is NULL,
  // since that doesn't register and deregister _ws.col fields.
  // If the column pref changes to or from NULL, that triggers columnsChanged
  // above, so we don't need to do it twice.
  //
  // XXX - If we knew exactly which fields changed, we could rebuild the
  // columns only if a field used by the columns changed.
  if (prefs.col_list) {
      prefs.num_cols = g_list_length(prefs.col_list);
      col_cleanup(&cf->cinfo);
      build_column_format_array(&cf->cinfo, prefs.num_cols, false);
      resetColumns();
  }
1961}

1963// Column widths should
1964// - Load from recent when we load a new profile (including at starting up).
1965// - Reapply when changing columns.
1966// - Persist across freezes and thaws.
1967// - Persist across file closing and opening.
1968// - Save to recent when we save our profile (including shutting down).
1969// - Not be affected by the behavior of stretchLastSection. (XXX: We
1970//   still save the stretched value to recent, sectionResized doesn't
1971//   distinguish between a resize from being stretched and a manual change.)
1972void PacketList::applyRecentColumnWidths()
1973{
  // Either we've just started up or a profile has changed. Read
  // the recent settings, apply them, and save the header state.

  for (unsigned col = 0; col < prefs.num_cols; col++) {
      // The column must be shown before setting column width.
      // Visibility will be updated in setColumnVisibility().
      setColumnHidden(col, false);
      setRecentColumnWidth(col);
  }
1983}

1985void PacketList::preferencesChanged()
1986{
  // Previously driven by the separate MainApplication::colorsChanged
  // signal, which has been removed — every colorsChanged emit was
  // paired with a preferencesChanged emit anyway.  Rebuilding the
  // selection stylesheet on every pref change is cheap (single
  // setStyleSheet call) and idempotent.
  colorsChanged();

  // Intelligent scroll bar (minimap)
  if (prefs.gui_packet_list_show_minimap) {
      if (overlay_timer_id_ == 0) {
          overlay_timer_id_ = startTimer(overlay_update_interval_);
      }
  } else {
      if (overlay_timer_id_ != 0) {
          killTimer(overlay_timer_id_);
          overlay_timer_id_ = 0;
      }
  }

  // Elide mode.
  // This sets the mode for the entire view. If we want to make this setting
  // per-column we'll either have to generalize RelatedPacketDelegate so that
  // we can set it for entire rows or create another delegate.
  Qt::TextElideMode elide_mode = Qt::ElideRight;
  switch (prefs.gui_packet_list_elide_mode) {
  case ELIDE_LEFT:
      elide_mode = Qt::ElideLeft;
      break;
  case ELIDE_MIDDLE:
      elide_mode = Qt::ElideMiddle;
      break;
  case ELIDE_NONE:
      elide_mode = Qt::ElideNone;
      break;
  default:
      break;
  }
  setTextElideMode(elide_mode);
2025}

2027void PacketList::freezePacketList(bool changing_profile)
2028{
  changing_profile_ = changing_profile;
  freeze(true);
2031}

2033void PacketList::recolorPackets()
2034{
  packet_list_model_->resetColorized();
  redrawVisiblePackets();
2037}

2039// Enable autoscroll.
2040void PacketList::setVerticalAutoScroll(bool enabled)
2041{
  tail_at_end_ = enabled;
  if (enabled && capture_in_progress_) {
      scrollToBottom();
  }
2046}

2048// Called when we finish reading, reloading, rescanning, and retapping
2049// packets.
2050void PacketList::captureFileReadFinished()
2051{
  packet_list_model_->flushVisibleRows();
  packet_list_model_->dissectIdle(true);
  // Invalidating the column strings picks up and request/response
  // tracking changes. We might just want to call it from flushVisibleRows.
  packet_list_model_->invalidateAllColumnStrings();
  // Sort *after* invalidating the column strings
  if (isSortingEnabled()) {
      sortByColumn(header()->sortIndicatorSection(), header()->sortIndicatorOrder());
  }
2061}

2063bool PacketList::freeze(bool keep_current_frame)
2064{
  if (!cap_file_ || model() == Q_NULLPTRnullptr) {
      // No capture file or already frozen
      return false;
  }

  frame_data *current_frame = cap_file_->current_frame;
  column_state_ = header()->saveState();
  setHeaderHidden(true);
  frozen_current_row_ = currentIndex();
  frozen_selected_rows_ = selectionModel()->selectedRows();
  selectionModel()->clear();
  setModel(Q_NULLPTRnullptr);
  // It looks like GTK+ sends a cursor-changed signal at this point but Qt doesn't
  // call selectionChanged.
  related_packet_delegate_.clear();

  if (keep_current_frame) {
      cap_file_->current_frame = current_frame;
  }

  /* Clears packet list as well as byteview */
  emit framesSelected(QList<int>());

  return true;
2089}

2091bool PacketList::thaw(bool restore_selection)
2092{
  if (!cap_file_ || model() != Q_NULLPTRnullptr) {
      // No capture file or not frozen
      return false;
  }

  setHeaderHidden(false);
  // Note that if we have a current sort status set in the header,
  // this will automatically try to sort the model (we don't want
  // that to happen if we're in the middle of reading the file).
  setModel(packet_list_model_);

  // setModel() always creates a brand-new default selection model, even
  // when passed the same model pointer, discarding the one we'd shared
  // with pinned_column_view_ back in the constructor. Re-share it so its
  // selection highlighting doesn't silently go stale. (The pinned-row
  // overlays use a separate proxy model -- PinnedRowsModel -- and so
  // never shared this selection model to begin with.)
  if (pinned_column_view_) {
      pinned_column_view_->setSelectionModel(selectionModel());
  }

  if (changing_profile_) {
      // When changing profile the new recent settings must be applied to the columns.
      applyRecentColumnWidths();
      setColumnVisibility();
      changing_profile_ = false;
  } else {
      // Resetting the model resets our column widths so we restore them here.
      // We don't reapply the recent settings because the user could have
      // resized the columns manually since they were initially loaded.
      header()->restoreState(column_state_);
  }

  if (restore_selection && frozen_selected_rows_.length() > 0 && selectionModel()) {
      /* This updates our selection, which redissects the current packet,
       * which is needed when we're called from MainWindow::layoutPanes.
       * Also, this resets all ProtoTree and ByteView data */
      clearSelection();
      setCurrentIndex(frozen_current_row_);
      foreach (QModelIndex idx, frozen_selected_rows_)for (auto _container_2132 = QtPrivate::qMakeForeachContainer(
frozen_selected_rows_); _container_2132.i != _container_2132.
e; ++_container_2132.i) if (QModelIndex idx = *_container_2132
.i; false) {} else {
          selectionModel()->select(idx, QItemSelectionModel::Select | QItemSelectionModel::Rows);
      }
      scrollTo(currentIndex(), PositionAtCenter);
  }
  frozen_current_row_ = QModelIndex();
  frozen_selected_rows_ = QModelIndexList();

  return true;
2141}

2143void PacketList::clear() {
  // Cleared before packet_list_model_ below: that call emits modelReset,
  // which updatePinnedRowVisibility() (connected to it) reacts to by
  // calling pinned_rows_model_->refresh() -- resolving pinned frame
  // numbers against packet_list_model_ while it's already been cleared,
  // if pinned_rows_model_ itself hadn't been cleared first. Every
  // consumer of that resolution currently null-checks defensively, so
  // this ordering wasn't otherwise observably wrong, but doing the
  // pinned-state clear first removes the transient window entirely
  // rather than relying on those checks to mask it.
  pinned_rows_model_->clear();
  setPinnedColumnBoundary(0);

  related_packet_delegate_.clear();
  selectionModel()->clear();
  packet_list_model_->clear();
  proto_tree_->clear();
  selection_history_.clear();
  cur_history_ = -1;
  in_history_ = false;

  QImage overlay;
  overlay_sb_->setNearOverlayImage(overlay);
  overlay_sb_->setMarkedPacketImage(overlay);
  create_near_overlay_ = true;
  create_far_overlay_ = true;

  updatePinnedRowVisibility();
2171}

2173void PacketList::writeRecent(FILE *rf) {
  int width, col_fmt;
  char xalign;

  fprintf (rf, "%s:\n", RECENT_KEY_COL_WIDTH"column.width");
  for (unsigned col = 0; col < prefs.num_cols; col++) {
      if (col > 0) {
          fprintf (rf, ",\n");
      }
      col_fmt = get_column_format(col);
      if (col_fmt == COL_CUSTOM) {
          fprintf (rf, "        \"%%Cus:%s\",", get_column_custom_fields(col));
      } else {
          fprintf (rf, "        %s,", col_format_to_string(col_fmt));
      }
      width = recent_get_column_width (col);
      xalign = recent_get_column_xalign (col);
      fprintf (rf, " %d", width);
      if (xalign != COLUMN_XALIGN_DEFAULT0) {
          fprintf (rf, ":%c", xalign);
      }
  }
  fprintf (rf, "\n");
2196}

2198bool PacketList::contextMenuActive()
2199{
  return ctx_column_ >= 0 ? true : false;
2201}

2203QString PacketList::getFilterFromRowAndColumn(QModelIndex idx)
2204{
  frame_data *fdata;
  QString filter;

  if (! idx.isValid())
      return filter;

  int row = idx.row();
  int column = idx.column();

  if (!cap_file_ || !packet_list_model_ || column < 0 || (unsigned)column >= cap_file_->cinfo.num_cols)
      return filter;

  fdata = packet_list_model_->getRowFdata(row);

  if (fdata != NULL__null) {
      epan_dissect_t edt;
      wtap_rec rec; /* Record information */

      wtap_rec_init(&rec, DEFAULT_INIT_BUFFER_SIZE_2048(2 * 1024));
      if (!cf_read_record(cap_file_, fdata, &rec)) {
          wtap_rec_cleanup(&rec);
          return filter; /* error reading the record */
      }
      /* proto tree, visible. We need a proto tree if there's custom columns */
      epan_dissect_init(&edt, cap_file_->epan, have_custom_cols(&cap_file_->cinfo), false);
      col_custom_prime_edt(&edt, &cap_file_->cinfo);

      epan_dissect_run(&edt, cap_file_->cd_t, &rec, fdata, &cap_file_->cinfo);

      if (cap_file_->cinfo.columns[column].col_fmt == COL_CUSTOM) {
          filter.append(gchar_free_to_qstring(col_custom_get_filter(&edt, &cap_file_->cinfo, (unsigned)column)));
      } else {
          /* We don't need to fill in the custom columns, as we get their
           * filters above.
           */
          col_fill_in(&edt.pi, true, true);
          if (strlen(cap_file_->cinfo.col_expr.col_expr[column]) != 0 &&
              strlen(cap_file_->cinfo.col_expr.col_expr_val[column]) != 0) {
              bool is_string_value = false;
              header_field_info *hfi = proto_registrar_get_byname(cap_file_->cinfo.col_expr.col_expr[column]);
              if (hfi && FT_IS_STRING(hfi->type)((hfi->type) == FT_STRING || (hfi->type) == FT_STRINGZ ||
 (hfi->type) == FT_STRINGZPAD || (hfi->type) == FT_STRINGZTRUNC
 || (hfi->type) == FT_UINT_STRING || (hfi->type) == FT_AX25
)) {
                  /* Could be an address type such as usb.src which must be quoted. */
                  is_string_value = true;
              }

              if (filter.isEmpty()) {
                  if (is_string_value) {
                      filter.append(QStringLiteral("%1 == \"%2\"")(QString(QtPrivate::qMakeStringPrivate(u"" "%1 == \"%2\"")))
                                    .arg(cap_file_->cinfo.col_expr.col_expr[column])
                                    .arg(cap_file_->cinfo.col_expr.col_expr_val[column]));
                  } else {
                      filter.append(QStringLiteral("%1 == %2")(QString(QtPrivate::qMakeStringPrivate(u"" "%1 == %2")))
                                    .arg(cap_file_->cinfo.col_expr.col_expr[column])
                                    .arg(cap_file_->cinfo.col_expr.col_expr_val[column]));
                  }
              }
          }
      }

      epan_dissect_cleanup(&edt);
      wtap_rec_cleanup(&rec);
  }

  return filter;
2269}

2271void PacketList::resetColorized()
2272{
  packet_list_model_->resetColorized();
  update();
2275}

2277QString PacketList::getPacketComment(unsigned c_number)
2278{
  int row = currentIndex().row();
  const frame_data *fdata;
  char *pkt_comment;
  wtap_opttype_return_val result;
  QString ret_val = NULL__null;

  if (!cap_file_ || !packet_list_model_) return NULL__null;

  fdata = packet_list_model_->getRowFdata(row);

  if (!fdata) return NULL__null;

  wtap_block_t pkt_block = cf_get_packet_block(cap_file_, fdata);
  result = wtap_block_get_nth_string_option_value(pkt_block, OPT_COMMENT1, c_number, &pkt_comment);
  if (result == WTAP_OPTTYPE_SUCCESS) {
      ret_val = QString(pkt_comment);
  }
  wtap_block_unref(pkt_block);
  return ret_val;
2298}

2300void PacketList::addPacketComment(QString new_comment)
2301{
  if (!cap_file_ || !packet_list_model_) return;
  if (new_comment.isEmpty()) return;

  QByteArray ba = new_comment.toUtf8();

  /*
   * Make sure this would fit in a pcapng option.
   *
   * XXX - 65535 is the maximum size for an option in pcapng;
   * what if another capture file format supports larger
   * comments?
   */
  if (ba.size() > 65535) {
      simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK0x01,
                    "That comment is too large to save in a capture file.");
      return;
  }

  if (selectionModel() && selectionModel()->hasSelection()) {
      packet_list_model_->addFrameComment(selectionModel()->selectedRows(), ba);
      drawCurrentPacket();
  }
2324}

2326void PacketList::setPacketComment(unsigned c_number, QString new_comment)
2327{
  QModelIndex curIndex = currentIndex();

  if (!cap_file_ || !packet_list_model_) return;

  QByteArray ba = new_comment.toUtf8();
  /*
   * Make sure this would fit in a pcapng option.
   *
   * XXX - 65535 is the maximum size for an option in pcapng;
   * what if another capture file format supports larger
   * comments?
   */
  if (ba.size() > 65535) {
      simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK0x01,
                    "That comment is too large to save in a capture file.");
      return;
  }

  packet_list_model_->setFrameComment(curIndex, ba, c_number);
  drawCurrentPacket();
2348}

2350QString PacketList::allPacketComments()
2351{
  uint32_t framenum;
  frame_data *fdata;
  QString buf_str;

  if (!cap_file_) return buf_str;

  for (framenum = 1; framenum <= cap_file_->count ; framenum++) {
      fdata = frame_data_sequence_find(cap_file_->provider.frames, framenum);

      wtap_block_t pkt_block = cf_get_packet_block(cap_file_, fdata);

      if (pkt_block) {
          unsigned n_comments = wtap_block_count_option(pkt_block, OPT_COMMENT1);
          for (unsigned i = 0; i < n_comments; i++) {
              char *comment_text;
              if (WTAP_OPTTYPE_SUCCESS == wtap_block_get_nth_string_option_value(pkt_block, OPT_COMMENT1, i, &comment_text)) {
                  buf_str.append(tr("Frame %1: %2\n\n").arg(framenum).arg(comment_text));
                  if (buf_str.length() > max_comments_to_fetch_) {
                      buf_str.append(tr("[ Comment text exceeds %1. Stopping. ]")
                              .arg(format_size(max_comments_to_fetch_, FORMAT_SIZE_UNIT_BYTES, FORMAT_SIZE_PREFIX_SI)format_size_wmem(__null, max_comments_to_fetch_, FORMAT_SIZE_UNIT_BYTES
, (1 << 0))));
                      return buf_str;
                  }
              }
          }
      }
  }
  return buf_str;
2379}

2381void PacketList::deleteCommentsFromPackets()
2382{
  if (!cap_file_ || !packet_list_model_) return;

  if (selectionModel() && selectionModel()->hasSelection()) {
      packet_list_model_->deleteFrameComments(selectionModel()->selectedRows());
      drawCurrentPacket();
  }
2389}

2391void PacketList::deleteAllPacketComments()
2392{
  if (!cap_file_ || !packet_list_model_) return;

  packet_list_model_->deleteAllFrameComments();
  drawCurrentPacket();
2397}


2400// Slots

2402void PacketList::setCaptureFile(capture_file *cf)
2403{
  cap_file_ = cf;
  packet_list_model_->setCaptureFile(cf);
  if (cap_file_ && columns_changed_) {
      columnsChanged();
  }
  create_near_overlay_ = true;
  changing_profile_ = false;
  sortByColumn(-1, Qt::AscendingOrder);
2412}

2414void PacketList::setMonospaceFont(const QFont &mono_font)
2415{
  setFont(mono_font);
  for (QTreeView *view : pinnedOverlayViews()) {
      view->setFont(mono_font);
  }
  layoutPinnedOverlays();
2421}

2423void PacketList::setRegularFont(const QFont &regular_font)
2424{
  header()->setFont(regular_font);
  header()->viewport()->setFont(regular_font);
  // pinned_column_view_'s own header isn't covered by setMonospaceFont()
  // looping over pinnedOverlayViews() (that sets the *view's* font, for
  // cell content -- QHeaderView doesn't automatically inherit a
  // different font set on its own separately-headed QTreeView the way
  // the primary view's header is explicitly given the regular font
  // above), so without this it silently kept whatever font QHeaderView
  // fell back to, differing from the primary header's.
  if (pinned_column_view_) {
      pinned_column_view_->header()->setFont(regular_font);
  }
2437}

2439void PacketList::goNextPacket(void)
2440{
  if (QApplication::keyboardModifiers() & Qt::AltModifier) {
      // Alt+toolbar
      goNextHistoryPacket();
      return;
  }

  if (selectionModel()->hasSelection()) {
      selectionModel()->setCurrentIndex(moveCursor(MoveDown, Qt::NoModifier), QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
  } else {
      // First visible packet.
      selectionModel()->setCurrentIndex(indexAt(viewport()->rect().topLeft()), QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
  }

  scrollViewChanged(false);
2455}

2457void PacketList::goPreviousPacket(void)
2458{
  if (QApplication::keyboardModifiers() & Qt::AltModifier) {
      // Alt+toolbar
      goPreviousHistoryPacket();
      return;
  }

  if (selectionModel()->hasSelection()) {
      selectionModel()->setCurrentIndex(moveCursor(MoveUp, Qt::NoModifier), QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
  } else {
      // Last visible packet.
      QModelIndex last_idx = indexAt(viewport()->rect().bottomLeft());
      if (last_idx.isValid()) {
          selectionModel()->setCurrentIndex(last_idx, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
      } else {
          goLastPacket();
      }
  }

  scrollViewChanged(false);
2478}

2480void PacketList::goFirstPacket(void) {
  if (packet_list_model_->rowCount() < 1) return;
  selectionModel()->setCurrentIndex(packet_list_model_->index(0, 0), QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
  scrollTo(currentIndex());

  scrollViewChanged(false);
2486}

2488void PacketList::goLastPacket(void) {
  if (packet_list_model_->rowCount() < 1) return;
  selectionModel()->setCurrentIndex(packet_list_model_->index(packet_list_model_->rowCount() - 1, 0), QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
  scrollTo(currentIndex());

  scrollViewChanged(false);
2494}

2496void PacketList::goToPacket(int packet, int hf_id)
2497{
  if (!cf_goto_frame(cap_file_, packet, false))
      return;

  // cf_goto_frame only returns true if packet_list_select_row_from_data
  // succeeds, the latter has already selected and scrolled to the frame.
  if (hf_id > 0) {
      proto_tree_->goToHfid(hf_id);
  }

  scrollViewChanged(false);
2508}

2510void PacketList::goNextHistoryPacket()
2511{
  if (haveNextHistory(true)) {
      in_history_ = true;
      goToPacket(selection_history_.at(cur_history_));
      in_history_ = false;
  }
2517}

2519void PacketList::goPreviousHistoryPacket()
2520{
  if (havePreviousHistory(true)) {
      in_history_ = true;
      goToPacket(selection_history_.at(cur_history_));
      in_history_ = false;
  }
2526}

2528void PacketList::markFrame()
2529{
  if (!cap_file_ || !packet_list_model_) return;

  QModelIndexList frames;

  if (selectionModel() && selectionModel()->hasSelection())
  {
      QModelIndexList selRows = selectionModel()->selectedRows(0);
      foreach (QModelIndex idx, selRows)for (auto _container_2537 = QtPrivate::qMakeForeachContainer(
selRows); _container_2537.i != _container_2537.e; ++_container_2537
.i) if (QModelIndex idx = *_container_2537.i; false) {} else
      {
          if (idx.isValid())
          {
              frames << idx;
          }
      }
  }
  else
      frames << currentIndex();

  packet_list_model_->toggleFrameMark(frames);

  // Make sure the packet list's frame.marked related field text is updated.
  redrawVisiblePackets();

  create_far_overlay_ = true;
  packets_bar_update();
2555}

2557void PacketList::markAllDisplayedFrames(bool set)
2558{
  if (!cap_file_ || !packet_list_model_) return;

  packet_list_model_->setDisplayedFrameMark(set);

  // Make sure the packet list's frame.marked related field text is updated.
  redrawVisiblePackets();

  create_far_overlay_ = true;
  packets_bar_update();
2568}

2570void PacketList::ignoreFrame()
2571{
  if (!cap_file_ || !packet_list_model_) return;

  QModelIndexList frames;

  if (selectionModel() && selectionModel()->hasSelection())
  {
      foreach (QModelIndex idx, selectionModel()->selectedRows(0))for (auto _container_2578 = QtPrivate::qMakeForeachContainer(
selectionModel()->selectedRows(0)); _container_2578.i != _container_2578
.e; ++_container_2578.i) if (QModelIndex idx = *_container_2578
.i; false) {} else
      {
          if (idx.isValid())
          {
              frames << idx;
          }
      }
  }
  else
      frames << currentIndex();


  packet_list_model_->toggleFrameIgnore(frames);
  create_far_overlay_ = true;
  int sb_val = verticalScrollBar()->value(); // Surely there's a better way to keep our position?
  setUpdatesEnabled(false);
  emit packetDissectionChanged();
  setUpdatesEnabled(true);
  verticalScrollBar()->setValue(sb_val);
2597}

2599void PacketList::ignoreAllDisplayedFrames(bool set)
2600{
  if (!cap_file_ || !packet_list_model_) return;

  packet_list_model_->setDisplayedFrameIgnore(set);
  create_far_overlay_ = true;
  emit packetDissectionChanged();
2606}

2608void PacketList::setTimeReference()
2609{
  if (!cap_file_ || !packet_list_model_) return;

  QModelIndexList frames;

  if (selectionModel() && selectionModel()->hasSelection())
  {
      foreach (QModelIndex idx, selectionModel()->selectedRows(0))for (auto _container_2616 = QtPrivate::qMakeForeachContainer(
selectionModel()->selectedRows(0)); _container_2616.i != _container_2616
.e; ++_container_2616.i) if (QModelIndex idx = *_container_2616
.i; false) {} else
      {
          if (idx.isValid())
          {
              frames << idx;
          }
      }
  }
  else
      frames << currentIndex();

  packet_list_model_->toggleFrameRefTime(frames);
  create_far_overlay_ = true;
2629}

2631void PacketList::unsetAllTimeReferences()
2632{
  if (!cap_file_ || !packet_list_model_) return;
  packet_list_model_->unsetAllFrameRefTime();
  create_far_overlay_ = true;
2636}

2638void PacketList::applyTimeShift()
2639{
  packet_list_model_->resetColumns();
  redrawVisiblePackets();
  emit packetDissectionChanged();
2643}

2645void PacketList::updatePackets(bool redraw)
2646{
  if (redraw) {
      packet_list_model_->resetColumns();
      redrawVisiblePackets();
  } else {
      update();
  }
2653}

2655void PacketList::columnVisibilityTriggered()
2656{
  QAction *ha = qobject_cast<QAction*>(sender());
  if (!ha) return;

  int col = ha->data().toInt();
  set_column_visible(col, ha->isChecked());
  setColumnVisibility();
  if (ha->isChecked()) {
      setRecentColumnWidth(col);
  }
  prefs_main_write();
2667}

2669void PacketList::sectionResized(int col, int, int new_width)
2670{
  if (isVisible() && !columns_changed_ && !set_column_visibility_ && !set_style_sheet_ && new_width > 0) {
      // Column 1 gets an invalid value (32 on macOS) when we're not yet
      // visible.
      //
      // Don't set column width when columns changed or setting column
      // visibility because we may get a sectionResized() from QTreeView
      // with values from a old columns layout.
      //
      // Don't set column width when hiding a column.

      recent_set_column_width(col, new_width);
  }

  mirrorSectionWidthToOverlays(col, new_width);
  layoutPinnedOverlays();
2686}

2688// The user moved a column. Make sure prefs.col_list, the column format
2689// array, and the header's visual and logical indices all agree.
2690// gtk/packet_list.c:column_dnd_changed_cb
2691void PacketList::sectionMoved(int logicalIndex, int oldVisualIndex, int newVisualIndex)
2692{
  GList *new_col_list = NULL__null;
  GList *new_recent_col_list = NULL__null;
  QList<int> saved_sizes;
  int sort_idx;

  // Since we undo the move below, these should always stay in sync.
  // Otherwise the order of columns can be unexpected after drag and drop.
  if (logicalIndex != oldVisualIndex) {
      ws_warning("Column moved from an unexpected state (%d, %d, %d)",do { if (true) { ws_log_full("", LOG_LEVEL_WARNING, "ui/qt/packet_list.cpp"
, 2702, __func__, "Column moved from an unexpected state (%d, %d, %d)"
, logicalIndex, oldVisualIndex, newVisualIndex); } } while (0
)
              logicalIndex, oldVisualIndex, newVisualIndex)do { if (true) { ws_log_full("", LOG_LEVEL_WARNING, "ui/qt/packet_list.cpp"
, 2702, __func__, "Column moved from an unexpected state (%d, %d, %d)"
, logicalIndex, oldVisualIndex, newVisualIndex); } } while (0
);
  }

  // Remember which column should be sorted. Use the visual index since this
  // points to the current GUI state rather than the outdated column order
  // (indicated by the logical index).
  sort_idx = header()->sortIndicatorSection();
  if (sort_idx != -1) {
      sort_idx = header()->visualIndex(sort_idx);
  }

  // Build a new column list based on the header's logical order.
  for (int vis_idx = 0; vis_idx < header()->count(); vis_idx++) {
      int log_idx = header()->logicalIndex(vis_idx);
      saved_sizes << header()->sectionSize(log_idx);

      void *pref_data = g_list_nth_data(prefs.col_list, log_idx);
      if (pref_data) {
          new_col_list = g_list_append(new_col_list, pref_data);
      }

      pref_data = g_list_nth_data(recent.col_width_list, log_idx);
      if (pref_data) {
          new_recent_col_list = g_list_append(new_recent_col_list, pref_data);
      }
  }

  // Undo move to ensure that the logical indices map to the visual indices,
  // otherwise the column order is changed twice (once via the modified
  // col_list, once because of the visual/logical index mismatch).
  disconnect(header(), &QHeaderView::sectionMoved, this, &PacketList::sectionMoved);
  header()->moveSection(newVisualIndex, oldVisualIndex);
  connect(header(), &QHeaderView::sectionMoved, this, &PacketList::sectionMoved);

  // Clear and rebuild our (and the header's) model. There doesn't appear
  // to be another way to reset the logical index.
  freeze();

  g_list_free(prefs.col_list);
  prefs.col_list = new_col_list;
  g_list_free(recent.col_width_list);
  recent.col_width_list = new_recent_col_list;

  thaw(true);

  for (int i = 0; i < saved_sizes.length(); i++) {
      if (saved_sizes[i] < 1) continue;
      header()->resizeSection(i, saved_sizes[i]);
  }

  prefs_main_write();

  mainApp->emitAppSignal(MainApplication::ColumnsChanged);

  // If the column with the sort indicator got shifted, mark the new column
  // after updating the columns contents (via ColumnsChanged) to ensure that
  // the columns are sorted using the intended column contents.
  int left_col = MIN(oldVisualIndex, newVisualIndex)(((oldVisualIndex) < (newVisualIndex)) ? (oldVisualIndex) :
 (newVisualIndex));
  int right_col = MAX(oldVisualIndex, newVisualIndex)(((oldVisualIndex) > (newVisualIndex)) ? (oldVisualIndex) :
 (newVisualIndex));
  if (left_col <= sort_idx && sort_idx <= right_col) {
      header()->setSortIndicator(sort_idx, header()->sortIndicatorOrder());
  }

  layoutPinnedOverlays();
2766}

2768void PacketList::pinSelectedRows()
2769{
  if (!pinned_rows_model_ || !packet_list_model_) return;

  QModelIndexList frames;
  if (selectionModel() && selectionModel()->hasSelection()) {
      foreach (QModelIndex idx, selectionModel()->selectedRows(0))for (auto _container_2774 = QtPrivate::qMakeForeachContainer(
selectionModel()->selectedRows(0)); _container_2774.i != _container_2774
.e; ++_container_2774.i) if (QModelIndex idx = *_container_2774
.i; false) {} else {
          if (idx.isValid()) frames << idx;
      }
  } else {
      frames << currentIndex();
  }

  foreach (QModelIndex idx, frames)for (auto _container_2781 = QtPrivate::qMakeForeachContainer(
frames); _container_2781.i != _container_2781.e; ++_container_2781
.i) if (QModelIndex idx = *_container_2781.i; false) {} else {
      frame_data *fdata = packet_list_model_->getRowFdata(idx.row());
      if (fdata) {
          pinned_rows_model_->pinFrame((int)fdata->num);
      }
  }
  updatePinnedRowVisibility();
2788}

2790void PacketList::unpinSelectedRows()
2791{
  if (!pinned_rows_model_ || !packet_list_model_) return;

  QModelIndexList frames;
  if (selectionModel() && selectionModel()->hasSelection()) {
      foreach (QModelIndex idx, selectionModel()->selectedRows(0))for (auto _container_2796 = QtPrivate::qMakeForeachContainer(
selectionModel()->selectedRows(0)); _container_2796.i != _container_2796
.e; ++_container_2796.i) if (QModelIndex idx = *_container_2796
.i; false) {} else {
          if (idx.isValid()) frames << idx;
      }
  } else {
      frames << currentIndex();
  }

  foreach (QModelIndex idx, frames)for (auto _container_2803 = QtPrivate::qMakeForeachContainer(
frames); _container_2803.i != _container_2803.e; ++_container_2803
.i) if (QModelIndex idx = *_container_2803.i; false) {} else {
      frame_data *fdata = packet_list_model_->getRowFdata(idx.row());
      if (fdata) {
          pinned_rows_model_->unpinFrame((int)fdata->num);
      }
  }
  updatePinnedRowVisibility();
2810}

2812void PacketList::unpinAllRows()
2813{
  pinned_rows_model_->clear();
  updatePinnedRowVisibility();
2816}

2818int PacketList::pinnedRowHeight() const
2819{
  int row_height = sizeHintForRow(0);
  if (row_height > 0) {
      return row_height;
  }
  // No rows laid out yet (e.g. empty capture); fall back to font-based
  // spacing so the strip still sizes sensibly rather than to 0.
  return fontMetrics().height() + 2;
2827}

2829void PacketList::setPinnedColumnBoundary(int column_count)
2830{
  pinned_column_boundary_ = column_count;
  emit pinnedColumnBoundaryChanged(pinned_column_boundary_);

  // Seed widths for the newly-pinned range; afterward sectionResized()
  // keeps these in sync as the user resizes columns.
  for (int i = 0; i < pinned_column_boundary_; i++) {
      int width = header()->sectionSize(i);
      if (pinned_column_view_) {
          pinned_column_view_->mirrorSectionWidth(i, width);
      }
      if (pinned_row_corner_view_) {
          pinned_row_corner_view_->mirrorSectionWidth(i, width);
      }
  }

  if (pinned_column_view_) {
      pinned_column_view_->setFrozenColumnCount(pinned_column_boundary_);
  }
  if (packet_list_header_) {
      packet_list_header_->setFrozenColumnCount(pinned_column_boundary_);
  }

  updatePinnedRowVisibility();
  layoutPinnedOverlays();
2855}

2857void PacketList::updatePinnedRowVisibility()
2858{
  pinned_rows_model_->refresh();

  bool have_pinned_rows = pinned_rows_model_->pinnedCount() > 0;

  for (unsigned i = 0; i < prefs.num_cols; i++) {
      int width = header()->sectionSize(i);
      if (pinned_row_view_) {
          pinned_row_view_->mirrorSectionWidth(i, width);
      }
      if (pinned_row_corner_view_) {
          pinned_row_corner_view_->mirrorSectionWidth(i, width);
      }
  }

  if (pinned_row_view_) {
      pinned_row_view_->setColumnRange(pinned_column_boundary_, -1);
      pinned_row_view_->setVisible(have_pinned_rows);
      pinned_row_view_->updateGeometry();
  }
  if (pinned_row_corner_view_) {
      bool show_corner = have_pinned_rows && pinned_column_boundary_ > 0;
      if (show_corner) {
          pinned_row_corner_view_->setColumnRange(0, pinned_column_boundary_ - 1);
      }
      pinned_row_corner_view_->setVisible(show_corner);
      pinned_row_corner_view_->updateGeometry();
  }

  layoutPinnedOverlays();
2888}

2890void PacketList::layoutPinnedOverlays()
2891{
  // Width of the frozen-column portion, shared between the column-freeze
  // overlay below and the pinned-row strip's "corner" widget (whose
  // sizing PacketListPane keeps in sync via pinnedRowsCornerWidthChanged()).
  int corner_width = 0;
  for (int i = 0; i < pinned_column_boundary_; i++) {
      corner_width += header()->sectionSize(i);
  }
  bool have_pinned_rows = pinned_rows_model_ && pinned_rows_model_->pinnedCount() > 0;
  emit pinnedRowsCornerWidthChanged(corner_width, have_pinned_rows);

  if (!pinned_column_view_) {
      return;
  }

  // Derive the real on-screen offsets from the primary view's own child
  // widgets rather than assuming (0, 0): QTreeView's default frame
  // border/margin means header()/viewport() do not actually start flush
  // with PacketList's own top-left corner.
  int left_offset = header()->pos().x();
  int top_offset = header()->pos().y();
  int header_height = header()->height();

  if (pinned_column_boundary_ > 0) {
      pinned_column_view_->mirrorHeaderHeight(header_height);
      // Span from the header's own top offset (not the viewport's) so
      // this view's own header covers the primary header's frozen-column
      // titles, which would otherwise scroll horizontally with the rest
      // of the header.
      QSize new_size(corner_width, header_height + viewport()->height());
      pinned_column_view_->setGeometry(left_offset, top_offset,
                                        new_size.width(), new_size.height());
      pinned_column_view_->setVisible(true);
      pinned_column_view_->raise();
      // refreshLayout() forces a full row-geometry recompute
      // (doItemsLayout()), which must run after setGeometry() since
      // QTreeView computes its vertical scroll range from the current
      // viewport size -- but only the height actually affects that
      // range, so skip the recompute when only corner_width (the
      // column-resize-driven part of new_size) changed. Without this,
      // dragging a column resize handle while frozen columns are active
      // re-runs a full O(rows) layout on every mouse-move tick.
      if (new_size.height() != pinned_column_view_size_.height()) {
          pinned_column_view_->refreshLayout();
      }
      pinned_column_view_size_ = new_size;
      pinned_column_view_->setVerticalScrollValue(verticalScrollBar()->value());
  } else {
      pinned_column_view_->setVisible(false);
  }
2941}

2943QString PacketList::createSummaryText(QModelIndex idx, SummaryCopyType type)
2944{
  if (! idx.isValid())
      return "";

  QStringList col_parts;
  int row = idx.row();
  for (int col = 0; col < packet_list_model_->columnCount(); col++) {
      if (get_column_visible(col)) {
          col_parts << packet_list_model_->data(packet_list_model_->index(row, col), Qt::DisplayRole).toString();
      }
  }
  return joinSummaryRow(col_parts, row, type);
2956}

2958QString PacketList::createHeaderSummaryText(SummaryCopyType type)
2959{
  QStringList col_parts;
  for (int col = 0; col < packet_list_model_->columnCount(); ++col) {
      if (get_column_visible(col)) {
          col_parts << packet_list_model_->headerData(col, Qt::Orientation::Horizontal, Qt::DisplayRole).toString();
      }
  }
  return joinSummaryRow(col_parts, 0, type);
2967}

2969QStringList PacketList::createHeaderPartsForAligned()
2970{
  QStringList hdr_parts;
  for (int col = 0; col < packet_list_model_->columnCount(); ++col) {
      if (get_column_visible(col)) {
          hdr_parts << packet_list_model_->headerData(col, Qt::Orientation::Horizontal, Qt::DisplayRole).toString();
      }
  }
  return hdr_parts;
2978}

2980QList<int> PacketList::createAlignmentPartsForAligned()
2981{
  QList<int> align_parts;
  for (int col = 0; col < packet_list_model_->columnCount(); col++) {
      if (get_column_visible(col)) {
          align_parts << packet_list_model_->data(packet_list_model_->index(0, col), Qt::TextAlignmentRole).toInt();
      }
  }
  return align_parts;
2989}

2991QList<int> PacketList::createSizePartsForAligned(bool useHeader, QStringList hdr_parts, QList<int> rows)
2992{
  QList<int> size_parts;

  for (int i = 0; i < hdr_parts.size(); ++i) {
      if (useHeader)
          size_parts << static_cast<int>(hdr_parts.at(i).size());
      else
          size_parts << 0;
  }

  foreach(int row, rows)for (auto _container_3002 = QtPrivate::qMakeForeachContainer(
rows); _container_3002.i != _container_3002.e; ++_container_3002
.i) if (int row = *_container_3002.i; false) {} else
  {
      QModelIndex idx = model()->index(row, 0);
      if (! idx.isValid())
          continue;

      QStringList col_parts;
      for (int col = 0; col < packet_list_model_->columnCount(); col++) {
          if (get_column_visible(col)) {
              col_parts << (packet_list_model_->data(packet_list_model_->index(row, col), Qt::DisplayRole).toString());
          }
      }

      for (int i = 0; i < col_parts.size(); ++i) {
          if (col_parts.at(i).size() > size_parts.at(i)) {
              size_parts[i] = static_cast<int>(col_parts.at(i).size());
          }
      }
      col_parts.clear();
  }

  return size_parts;
3024}

3026QString PacketList::createHeaderSummaryForAligned(QStringList hdr_parts, QList<int> align_parts, QList<int> size_parts)
3027{
  QString hdr_text;
  for (int i = 0; i < hdr_parts.size(); ++i) {
      if (align_parts.at(i) == Qt::AlignLeft) {
          hdr_text += hdr_parts[i].leftJustified(size_parts.at(i), ' ') + "  ";
      }
      else if (align_parts.at(i) == Qt::AlignRight) {
          hdr_text += hdr_parts[i].rightJustified(size_parts.at(i), ' ') + "  ";
      }
  }
  return QStringLiteral("-%1")(QString(QtPrivate::qMakeStringPrivate(u"" "-%1"))).arg(hdr_text).trimmed().mid(1);
3038}

3040QString PacketList::createSummaryForAligned(QModelIndex idx, QList<int> align_parts, QList<int> size_parts)
3041{
  if (! idx.isValid())
      return "";

  QStringList col_parts;
  int row = idx.row();
  for (int col = 0; col < packet_list_model_->columnCount(); col++) {
      if (get_column_visible(col)) {
          col_parts << packet_list_model_->data(packet_list_model_->index(row, col), Qt::DisplayRole).toString();
      }
  }

  QString col_text;
  for (int i = 0; i < col_parts.size(); ++i) {
      if (align_parts.at(i) == Qt::AlignLeft) {
          col_text += col_parts[i].leftJustified(size_parts.at(i), ' ') + "  ";
      }
      else if (align_parts.at(i) == Qt::AlignRight) {
          col_text += col_parts[i].rightJustified(size_parts.at(i), ' ') + "  ";
      }
  }

  return QStringLiteral("-%1")(QString(QtPrivate::qMakeStringPrivate(u"" "-%1"))).arg(col_text).trimmed().mid(1);
3064}

3066QString PacketList::createDefaultStyleForHtml()
3067{
  QString fontFamily = QString(prefs.gui_font_name).split(",")[0];
  QString fontSize = QString(prefs.gui_font_name).split(",")[1];

  return QStringLiteral("<style>"(QString(QtPrivate::qMakeStringPrivate(u"" "<style>" "table{font-family:%1;font-size:%2pt;}"
 "th{background-color:#000000;color:#ffffff;text-align:left;}"
 "th,td{padding:%3pt}" "</style>")))
      "table{font-family:%1;font-size:%2pt;}"(QString(QtPrivate::qMakeStringPrivate(u"" "<style>" "table{font-family:%1;font-size:%2pt;}"
 "th{background-color:#000000;color:#ffffff;text-align:left;}"
 "th,td{padding:%3pt}" "</style>")))
      "th{background-color:#000000;color:#ffffff;text-align:left;}"(QString(QtPrivate::qMakeStringPrivate(u"" "<style>" "table{font-family:%1;font-size:%2pt;}"
 "th{background-color:#000000;color:#ffffff;text-align:left;}"
 "th,td{padding:%3pt}" "</style>")))
      "th,td{padding:%3pt}"(QString(QtPrivate::qMakeStringPrivate(u"" "<style>" "table{font-family:%1;font-size:%2pt;}"
 "th{background-color:#000000;color:#ffffff;text-align:left;}"
 "th,td{padding:%3pt}" "</style>")))
      "</style>")(QString(QtPrivate::qMakeStringPrivate(u"" "<style>" "table{font-family:%1;font-size:%2pt;}"
 "th{background-color:#000000;color:#ffffff;text-align:left;}"
 "th,td{padding:%3pt}" "</style>"))).arg(fontFamily, fontSize).arg(fontSize.toInt() / 2);
3076}

3078QString PacketList::createOpeningTagForHtml()
3079{
  return "<table>";
3081}

3083QString PacketList::createHeaderSummaryForHtml()
3084{
  QString hdr_text;
  hdr_text += "<tr>";
  for (int col = 0; col < packet_list_model_->columnCount(); ++col) {
      if (get_column_visible(col)) {
          hdr_text += "<th>";
          hdr_text += packet_list_model_->headerData(col, Qt::Orientation::Horizontal, Qt::DisplayRole).toString();
          hdr_text += "</th>";
      }
  }
  hdr_text += "</tr>";
  return hdr_text;
3096}

3098QString PacketList::createSummaryForHtml(QModelIndex idx)
3099{
  if (! idx.isValid())
      return "";

  int row = idx.row();
  QString col_text;

  QString bg_color = packet_list_model_->data(packet_list_model_->index(row, 0), Qt::BackgroundRole).toString();
  QString fg_color = packet_list_model_->data(packet_list_model_->index(row, 0), Qt::ForegroundRole).toString();
  col_text += "<tr style=\"background-color:" + bg_color + ";color:" + fg_color + ";\">";

  QString alignment[] = {"left", "right", "center", "justify"};

  for (int col = 0; col < packet_list_model_->columnCount(); col++) {
      if (get_column_visible(col)) {
          col_text += "<td style=\"text-align:" + alignment[packet_list_model_->data(packet_list_model_->index(row, col), Qt::TextAlignmentRole).toInt() / 2] + ";\">";
          col_text += packet_list_model_->data(packet_list_model_->index(row, col), Qt::DisplayRole).toString();
          col_text += "</td>";
      }
  }

  col_text += "</tr>";
  return col_text;
3122}

3124QString PacketList::createClosingTagForHtml()
3125{
  return "</table>";
3127}

3129void PacketList::copySummary()
3130{
  if (!currentIndex().isValid()) return;

  QAction *ca = qobject_cast<QAction*>(sender());
  if (!ca) return;

  QVariant type = ca->data();
  if (! type.canConvert<SummaryCopyType>())
      return;
  SummaryCopyType copy_type = type.value<SummaryCopyType>();

  QString copy_text;
  if (type == CopyAsText || type == CopyAsHTML) {
      if (prefs.gui_packet_list_copy_text_with_aligned_columns) {
          QList<int> rows;
          rows << currentIndex().row();
          QStringList hdr_parts;
          QList<int> align_parts, size_parts;
          hdr_parts = createHeaderPartsForAligned();
          align_parts = createAlignmentPartsForAligned();
          size_parts = createSizePartsForAligned(false, hdr_parts, rows);
          copy_text = createSummaryForAligned(currentIndex(), align_parts, size_parts);
      }
      else {
          copy_text = createSummaryText(currentIndex(), CopyAsText);
      }
      copy_text += "\n";
      if (type == CopyAsHTML) {
          QStringList htmlContent;
          htmlContent << createDefaultStyleForHtml();
          htmlContent << createOpeningTagForHtml();
          htmlContent << createSummaryForHtml(currentIndex());
          htmlContent << createClosingTagForHtml();
          // htmlContent will never be empty as they will always have
          // style and table tags
          QMimeData *mimeData = new QMimeData;
          mimeData->setHtml(htmlContent.join('\n'));
          mimeData->setText(copy_text);
          mainApp->clipboard()->setMimeData(mimeData, QClipboard::Clipboard);
      }
      else {
          mainApp->clipboard()->setText(copy_text);
      }
  }
  else {
      copy_text = createSummaryText(currentIndex(), copy_type);
      if (type != CopyAsYAML)
          copy_text += "\n";
      mainApp->clipboard()->setText(copy_text);
  }
3180}

3182// We need to tell when the user has scrolled the packet list, either to
3183// the end or anywhere other than the end.
3184void PacketList::vScrollBarActionTriggered(int)
3185{
  // If we're scrolling with a mouse wheel or trackpad sliderPosition can end up
  // past the end.
  tail_at_end_ = (overlay_sb_->sliderPosition() >= overlay_sb_->maximum());

  scrollViewChanged(tail_at_end_);
3191}

3193void PacketList::scrollViewChanged(bool at_end)
3194{
  if (capture_in_progress_) {
      // We want to start auto scrolling when the user scrolls to (or past)
      // the end only if recent.capture_auto_scroll is set.
      // We want to stop autoscrolling if the user scrolls up or uses
      // Go to Packet regardless of the preference setting.
      if (recent.capture_auto_scroll || !at_end) {
          emit packetListScrolled(at_end);
      }
  }
3204}

3206// Goal: Overlay the packet list scroll bar with the colors of all of the
3207// packets.
3208// Try 1: Average packet colors in each scroll bar raster line. This has
3209// two problems: It's easy to wash out colors and we dissect every packet.
3210// Try 2: Color across a 5000 or 10000 packet window. We still end up washing
3211// out colors.
3212// Try 3: One packet per vertical scroll bar pixel. This seems to work best
3213// but has the smallest window.
3214// Try 4: Use a multiple of the scroll bar height and scale the image down
3215// using Qt::SmoothTransformation. This gives us more packets per raster
3216// line.

3218// Odd (prime?) numbers resulted in fewer scaling artifacts. A multiplier
3219// of 9 washed out colors a little too much.
3220//const int height_multiplier_ = 7;
3221void PacketList::drawNearOverlay()
3222{
  if (create_near_overlay_) {
      create_near_overlay_ = false;
  }

  if (!cap_file_ || cap_file_->state != FILE_READ_DONE) return;

  if (!prefs.gui_packet_list_show_minimap) return;

  qreal dp_ratio = overlay_sb_->devicePixelRatio();
  int o_height = overlay_sb_->height() * dp_ratio;
  int o_rows = qMin(packet_list_model_->rowCount(), o_height);
  QFontMetricsF fmf(mainApp->font());
  int o_width = ((static_cast<int>(fmf.height())) * 2 * dp_ratio) + 2; // 2ems + 1-pixel border on either side.

  if (recent.packet_list_colorize && o_rows > 0) {
      QImage overlay(o_width, o_height, QImage::Format_ARGB32_Premultiplied);

      QPainter painter(&overlay);

      overlay.fill(Qt::transparent);

      int cur_line = 0;
      int start = 0;

      if (packet_list_model_->rowCount() > o_height && overlay_sb_->maximum() > 0) {
          start += ((double) overlay_sb_->value() / overlay_sb_->maximum()) * (packet_list_model_->rowCount() - o_rows);
      }
      int end = start + o_rows;
      for (int row = start; row < end; row++) {
          packet_list_model_->ensureRowColorized(row);

          frame_data *fdata = packet_list_model_->getRowFdata(row);
          int next_line = (row - start + 1) * o_height / o_rows;
          int row_height = next_line - cur_line;

          // Multi-color support in minimap (enabled for all non-Off modes)
          if (prefs.gui_packet_list_multi_color_mode != PACKET_LIST_MULTI_COLOR_MODE_OFF) {
              QModelIndex idx = packet_list_model_->index(row, 0);
              PacketListRecord *record = static_cast<PacketListRecord*>(idx.internalPointer());
              // Conversation color filters take full precedence — skip multi-color stripe rendering
              bool is_conversation_color = fdata->color_filter &&
                  strncmp(((const color_filter_t *)fdata->color_filter)->filter_name,
                          CONVERSATION_COLOR_PREFIX"___conversation_color_filter___", strlen(CONVERSATION_COLOR_PREFIX"___conversation_color_filter___")) == 0;
              if (record && record->hasMultipleColors() && !is_conversation_color) {
                  // Draw vertical stripes for multiple colors (skip paused filters)
                  const GSList *filters = record->matchingColorFilters();

                  // Count non-paused filters
                  int num_active_colors = 0;
                  for (const GSList *item = filters; item != NULL__null; item = g_slist_next(item)((item) ? (((GSList *)(item))->next) : __null)) {
                      const color_filter_t *colorf = (const color_filter_t *)item->data;
                      if (!color_filter_is_session_disabled(colorf->filter_name)) {
                          num_active_colors++;
                      }
                  }

                  if (num_active_colors > 0) {
                      int stripe_width = o_width / num_active_colors;
                      int x_pos = 0;
                      int stripe_idx = 0;

                      for (const GSList *item = filters; item != NULL__null; item = g_slist_next(item)((item) ? (((GSList *)(item))->next) : __null)) {
                          const color_filter_t *colorf = (const color_filter_t *)item->data;
                          // Skip paused filters
                          if (!color_filter_is_session_disabled(colorf->filter_name)) {
                              QColor color(ColorUtils::fromColorT(&colorf->bg_color));
                              int width = (stripe_idx == num_active_colors - 1) ? (o_width - x_pos) : stripe_width;
                              painter.fillRect(x_pos, cur_line, width, row_height, color);
                              x_pos += stripe_width;
                              stripe_idx++;
                          }
                      }
                  } else {
                      // All filters paused, draw no color
                      painter.fillRect(0, cur_line, o_width, row_height, QColor(Qt::white));
                  }
              } else if (fdata->color_filter) {
                  // Single color fallback
                  const color_filter_t *color_filter = (const color_filter_t *) fdata->color_filter;
                  QColor color(ColorUtils::fromColorT(&color_filter->bg_color));
                  painter.fillRect(0, cur_line, o_width, row_height, color);
              }
          } else {
              // Original single-color behavior
              const color_t *bgcolor = NULL__null;
              if (fdata->color_filter) {
                  const color_filter_t *color_filter = (const color_filter_t *) fdata->color_filter;
                  bgcolor = &color_filter->bg_color;
              }

              if (bgcolor) {
                  QColor color(ColorUtils::fromColorT(bgcolor));
                  painter.fillRect(0, cur_line, o_width, row_height, color);
              }
          }

          cur_line = next_line;
      }

      // If the selected packet is in the overlay set selected_pos
      // accordingly. Otherwise, pin it to either the top or bottom.
      QList<int> positions;
      if (selectionModel()->hasSelection()) {

          QModelIndexList selRows = selectionModel()->selectedRows(0);
          int last_row = -1;
          int last_pos = -1;
          foreach (QModelIndex idx, selRows)for (auto _container_3330 = QtPrivate::qMakeForeachContainer(
selRows); _container_3330.i != _container_3330.e; ++_container_3330
.i) if (QModelIndex idx = *_container_3330.i; false) {} else
          {
              int selected_pos = -1;
              int sel_row = idx.row();
              if (sel_row < start) {
                  selected_pos = 0;
              } else if (sel_row >= end) {
                  selected_pos = overlay.height() - 1;
              } else {
                  selected_pos = (sel_row - start) * o_height / o_rows;
              }

                  /* Due to the difference in the display height, we sometimes get empty positions
                   * inbetween consecutive valid rows. If those are detected, they are signaled as
                   * being selected as well */
              if (last_pos >= 0 && selected_pos > (last_pos + 1) && (last_row + 1) == sel_row)
              {
                  for (int pos = (last_pos + 1); pos < selected_pos; pos++)
                  {
                      if (! positions.contains(pos))
                          positions << pos;
                  }
              }
              else if (selected_pos != -1 && ! positions.contains(selected_pos))
                  positions << selected_pos;

              last_row = sel_row;
              last_pos = selected_pos;
          }
      }

      overlay_sb_->setNearOverlayImage(overlay, packet_list_model_->rowCount(), start, end, positions, (o_height / o_rows));
  } else {
      QImage overlay;
      overlay_sb_->setNearOverlayImage(overlay);
  }
3366}

3368void PacketList::drawFarOverlay()
3369{
  if (create_far_overlay_) {
      create_far_overlay_ = false;
  }

  if (!cap_file_ || cap_file_->state != FILE_READ_DONE) return;

  if (!prefs.gui_packet_list_show_minimap) return;

  QSize groove_size = overlay_sb_->grooveRect().size();
  qreal dp_ratio = overlay_sb_->devicePixelRatio();
  groove_size *= dp_ratio;
  int o_width = groove_size.width();
  int o_height = groove_size.height();
  int pl_rows = packet_list_model_->rowCount();
  QImage overlay(o_width, o_height, QImage::Format_ARGB32_Premultiplied);
  bool have_marked_image = false;

  // If only there were references from popular culture about getting into
  // some sort of groove.
  if (!overlay.isNull() && recent.packet_list_colorize && pl_rows > 0) {

      QPainter painter(&overlay);

      // Draw text-colored tick marks on a transparent background.
      // Hopefully no themes use the text color for the groove color.
      overlay.fill(Qt::transparent);

      QColor tick_color = palette().text().color();
      tick_color.setAlphaF(0.3f);
      painter.setPen(tick_color);

      for (int row = 0; row < pl_rows; row++) {

          frame_data *fdata = packet_list_model_->getRowFdata(row);
          if (fdata->marked || fdata->ref_time || fdata->ignored) {
              int new_line = row * o_height / pl_rows;
              int tick_width = o_width / 3;
              // Marked or ignored: left side, time refs: right side.
              // XXX Draw ignored ticks in the middle?
              int x1 = fdata->ref_time ? o_width - tick_width : 1;
              int x2 = fdata->ref_time ? o_width - 1 : tick_width;

              painter.drawLine(x1, new_line, x2, new_line);
              have_marked_image = true;
          }
      }

      if (have_marked_image) {
          overlay_sb_->setMarkedPacketImage(overlay);
          return;
      }
  }

  if (!have_marked_image) {
      QImage null_overlay;
      overlay_sb_->setMarkedPacketImage(null_overlay);
  }
3427}

3429// Auto scroll if:
3430// - We are capturing
3431// - actionGoAutoScroll in the main UI is checked.

3433// actionGoAutoScroll in the main UI:
3434// - Is set to the value of recent.capture_auto_scroll when beginning a capture
3435// - Can be triggered manually by the user
3436// - Is turned on if the last user-set vertical scrollbar position is at the
3437//   end and recent.capture_auto_scroll is enabled
3438// - Is turned off if the last user-set vertical scrollbar is not at the end,
3439//   or if one of the Go to Packet actions is used (XXX: Should keyboard
3440//   navigation in keyPressEvent turn it off for similar reasons?)
3441void PacketList::rowsInserted(const QModelIndex &parent, int start, int end)
3442{
  QTreeView::rowsInserted(parent, start, end);
  const QModelIndex& cIndex = currentIndex();
  bool aggregation_mode = recent.aggregation_view && prefs.aggregation_fields_num > 0;
  if (aggregation_mode && cIndex.isValid() && cIndex.row() >= 0) {
      int row = cIndex.row();
      frame_data* fdata = getFDataForRow(row);
      if (fdata && cap_file_->current_frame->num != fdata->num) {
          cf_select_packet(cap_file_, fdata);
          emit framesSelected(QList<int>() << row);
      }
  }
  if (capture_in_progress_ && tail_at_end_) {
      scrollToBottom();
  }
3457}

3459void PacketList::resizeAllColumns(bool onlyTimeFormatted)
3460{
  if (!cap_file_ || cap_file_->state == FILE_CLOSED || cap_file_->state == FILE_READ_PENDING)
      return;

  for (unsigned col = 0; col < cap_file_->cinfo.num_cols; col++) {
      if (! onlyTimeFormatted || col_has_time_fmt(&cap_file_->cinfo, col)) {
          resizeColumnToContents(col);
      }
  }
3469}