pv/views/tabular_decoder/view.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2020 Soeren Apel <soeren@apelpie.net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <climits>
  21
  22 #include <QApplication>
  23 #include <QDebug>
  24 #include <QFileDialog>
  25 #include <QFontMetrics>
  26 #include <QHeaderView>
  27 #include <QLabel>
  28 #include <QMenu>
  29 #include <QMessageBox>
  30 #include <QToolBar>
  31 #include <QVBoxLayout>
  32
  33 #include <libsigrokdecode/libsigrokdecode.h>
  34
  35 #include "view.hpp"
  36
  37 #include "pv/globalsettings.hpp"
  38 #include "pv/session.hpp"
  39 #include "pv/util.hpp"
  40 #include "pv/data/decode/decoder.hpp"
  41
  42 using pv::data::DecodeSignal;
  43 using pv::data::SignalBase;
  44 using pv::data::decode::Decoder;
  45 using pv::util::Timestamp;
  46
  47 using std::make_shared;
  48 using std::max;
  49 using std::shared_ptr;
  50
  51 namespace pv {
  52 namespace views {
  53 namespace tabular_decoder {
  54
  55 const char* SaveTypeNames[SaveTypeCount] = {
  56         "CSV, commas escaped",
  57         "CSV, fields quoted"
  58 };
  59
  60 const char* ViewModeNames[ViewModeCount] = {
  61         "Show all",
  62         "Show all and focus on newest",
  63         "Show visible in main view"
  64 };
  65
  66
  67 CustomFilterProxyModel::CustomFilterProxyModel(QObject* parent) :
  68         QSortFilterProxyModel(parent),
  69         range_filtering_enabled_(false)
  70 {
  71 }
  72
  73 bool CustomFilterProxyModel::filterAcceptsRow(int sourceRow,
  74         const QModelIndex &sourceParent) const
  75 {
  76         (void)sourceParent;
  77         assert(sourceModel() != nullptr);
  78
  79         bool result = true;
  80
  81         if (range_filtering_enabled_) {
  82                 const QModelIndex ann_start_sample_idx = sourceModel()->index(sourceRow, 0);
  83                 const uint64_t ann_start_sample =
  84                         sourceModel()->data(ann_start_sample_idx, Qt::DisplayRole).toULongLong();
  85
  86                 const QModelIndex ann_end_sample_idx = sourceModel()->index(sourceRow, 6);
  87                 const uint64_t ann_end_sample =
  88                         sourceModel()->data(ann_end_sample_idx, Qt::DisplayRole).toULongLong();
  89
  90                 // We consider all annotations as visible that either
  91                 // a) begin to the left of the range and end within the range or
  92                 // b) begin and end within the range or
  93                 // c) begin within the range and end to the right of the range
  94                 // ...which is equivalent to the negation of "begins and ends outside the range"
  95
  96                 const bool left_of_range = (ann_end_sample < range_start_sample_);
  97                 const bool right_of_range = (ann_start_sample > range_end_sample_);
  98                 const bool entirely_outside_of_range = left_of_range || right_of_range;
  99
 100                 result = !entirely_outside_of_range;
 101         }
 102
 103         return result;
 104 }
 105
 106 void CustomFilterProxyModel::set_sample_range(uint64_t start_sample,
 107         uint64_t end_sample)
 108 {
 109         range_start_sample_ = start_sample;
 110         range_end_sample_ = end_sample;
 111
 112         invalidateFilter();
 113 }
 114
 115 void CustomFilterProxyModel::enable_range_filtering(bool value)
 116 {
 117         range_filtering_enabled_ = value;
 118
 119         invalidateFilter();
 120 }
 121
 122
 123 QSize CustomTableView::minimumSizeHint() const
 124 {
 125         QSize size(QTableView::sizeHint());
 126
 127         int width = 0;
 128         for (int i = 0; i < horizontalHeader()->count(); i++)
 129                 if (!horizontalHeader()->isSectionHidden(i))
 130                         width += horizontalHeader()->sectionSize(i);
 131
 132         size.setWidth(width + (horizontalHeader()->count() * 1));
 133
 134         return size;
 135 }
 136
 137 QSize CustomTableView::sizeHint() const
 138 {
 139         return minimumSizeHint();
 140 }
 141
 142
 143 View::View(Session &session, bool is_main_view, QMainWindow *parent) :
 144         ViewBase(session, is_main_view, parent),
 145
 146         // Note: Place defaults in View::reset_view_state(), not here
 147         parent_(parent),
 148         decoder_selector_(new QComboBox()),
 149         hide_hidden_cb_(new QCheckBox()),
 150         view_mode_selector_(new QComboBox()),
 151         save_button_(new QToolButton()),
 152         save_action_(new QAction(this)),
 153         table_view_(new CustomTableView()),
 154         model_(new AnnotationCollectionModel(this)),
 155         filter_proxy_model_(new CustomFilterProxyModel(this)),
 156         signal_(nullptr)
 157 {
 158         QVBoxLayout *root_layout = new QVBoxLayout(this);
 159         root_layout->setContentsMargins(0, 0, 0, 0);
 160         root_layout->addWidget(table_view_);
 161
 162         // Create toolbar
 163         QToolBar* toolbar = new QToolBar();
 164         toolbar->setContextMenuPolicy(Qt::PreventContextMenu);
 165         parent->addToolBar(toolbar);
 166
 167         // Populate toolbar
 168         toolbar->addWidget(new QLabel(tr("Decoder:")));
 169         toolbar->addWidget(decoder_selector_);
 170         toolbar->addSeparator();
 171         toolbar->addWidget(save_button_);
 172         toolbar->addSeparator();
 173         toolbar->addWidget(view_mode_selector_);
 174         toolbar->addSeparator();
 175         toolbar->addWidget(hide_hidden_cb_);
 176
 177         connect(decoder_selector_, SIGNAL(currentIndexChanged(int)),
 178                 this, SLOT(on_selected_decoder_changed(int)));
 179         connect(view_mode_selector_, SIGNAL(currentIndexChanged(int)),
 180                 this, SLOT(on_view_mode_changed(int)));
 181         connect(hide_hidden_cb_, SIGNAL(toggled(bool)),
 182                 this, SLOT(on_hide_hidden_changed(bool)));
 183
 184         // Configure widgets
 185         decoder_selector_->setSizeAdjustPolicy(QComboBox::AdjustToContents);
 186
 187         for (int i = 0; i < ViewModeCount; i++)
 188                 view_mode_selector_->addItem(ViewModeNames[i], QVariant::fromValue(i));
 189
 190         hide_hidden_cb_->setText(tr("Hide Hidden Rows/Classes"));
 191         hide_hidden_cb_->setChecked(true);
 192
 193         // Configure actions
 194         save_action_->setText(tr("&Save..."));
 195         save_action_->setIcon(QIcon::fromTheme("document-save-as",
 196                 QIcon(":/icons/document-save-as.png")));
 197         save_action_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_S));
 198         connect(save_action_, SIGNAL(triggered(bool)),
 199                 this, SLOT(on_actionSave_triggered()));
 200
 201         QMenu *save_menu = new QMenu();
 202         connect(save_menu, SIGNAL(triggered(QAction*)),
 203                 this, SLOT(on_actionSave_triggered(QAction*)));
 204
 205         for (int i = 0; i < SaveTypeCount; i++) {
 206                 QAction *const action = save_menu->addAction(tr(SaveTypeNames[i]));
 207                 action->setData(QVariant::fromValue(i));
 208         }
 209
 210         save_button_->setMenu(save_menu);
 211         save_button_->setDefaultAction(save_action_);
 212         save_button_->setPopupMode(QToolButton::MenuButtonPopup);
 213
 214         // Set up the models and the table view
 215         filter_proxy_model_->setSourceModel(model_);
 216         table_view_->setModel(filter_proxy_model_);
 217
 218         table_view_->setSelectionBehavior(QAbstractItemView::SelectRows);
 219         table_view_->setSelectionMode(QAbstractItemView::ContiguousSelection);
 220         table_view_->setSortingEnabled(true);
 221         table_view_->sortByColumn(0, Qt::AscendingOrder);
 222
 223         for (uint8_t i = model_->first_hidden_column(); i < model_->columnCount(); i++)
 224                 table_view_->setColumnHidden(i, true);
 225
 226         const int font_height = QFontMetrics(QApplication::font()).height();
 227         table_view_->verticalHeader()->setDefaultSectionSize((font_height * 5) / 4);
 228         table_view_->verticalHeader()->setVisible(false);
 229
 230         table_view_->horizontalHeader()->setStretchLastSection(true);
 231         table_view_->horizontalHeader()->setCascadingSectionResizes(true);
 232         table_view_->horizontalHeader()->setSectionsMovable(true);
 233         table_view_->horizontalHeader()->setContextMenuPolicy(Qt::CustomContextMenu);
 234
 235         table_view_->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 236         parent->setSizePolicy(table_view_->sizePolicy());
 237
 238         connect(table_view_, SIGNAL(clicked(const QModelIndex&)),
 239                 this, SLOT(on_table_item_clicked(const QModelIndex&)));
 240         connect(table_view_, SIGNAL(doubleClicked(const QModelIndex&)),
 241                 this, SLOT(on_table_item_double_clicked(const QModelIndex&)));
 242         connect(table_view_->horizontalHeader(), SIGNAL(customContextMenuRequested(const QPoint&)),
 243                 this, SLOT(on_table_header_requested(const QPoint&)));
 244
 245         // Set up metadata event handler
 246         session_.metadata_obj_manager()->add_observer(this);
 247
 248         reset_view_state();
 249 }
 250
 251 View::~View()
 252 {
 253         session_.metadata_obj_manager()->remove_observer(this);
 254 }
 255
 256 ViewType View::get_type() const
 257 {
 258         return ViewTypeTabularDecoder;
 259 }
 260
 261 void View::reset_view_state()
 262 {
 263         ViewBase::reset_view_state();
 264
 265         decoder_selector_->clear();
 266 }
 267
 268 void View::clear_decode_signals()
 269 {
 270         ViewBase::clear_decode_signals();
 271
 272         reset_data();
 273         reset_view_state();
 274 }
 275
 276 void View::add_decode_signal(shared_ptr<data::DecodeSignal> signal)
 277 {
 278         ViewBase::add_decode_signal(signal);
 279
 280         connect(signal.get(), SIGNAL(name_changed(const QString&)),
 281                 this, SLOT(on_signal_name_changed(const QString&)));
 282
 283         // Note: At time of initial creation, decode signals have no decoders so we
 284         // need to watch for decoder stacking events
 285
 286         connect(signal.get(), SIGNAL(decoder_stacked(void*)),
 287                 this, SLOT(on_decoder_stacked(void*)));
 288         connect(signal.get(), SIGNAL(decoder_removed(void*)),
 289                 this, SLOT(on_decoder_removed(void*)));
 290
 291         // Add the top-level decoder provided by an already-existing signal
 292         auto stack = signal->decoder_stack();
 293         if (!stack.empty()) {
 294                 shared_ptr<Decoder>& dec = stack.at(0);
 295                 decoder_selector_->addItem(signal->name(), QVariant::fromValue((void*)dec.get()));
 296         }
 297 }
 298
 299 void View::remove_decode_signal(shared_ptr<data::DecodeSignal> signal)
 300 {
 301         // Remove all decoders provided by this signal
 302         for (const shared_ptr<Decoder>& dec : signal->decoder_stack()) {
 303                 int index = decoder_selector_->findData(QVariant::fromValue((void*)dec.get()));
 304
 305                 if (index != -1)
 306                         decoder_selector_->removeItem(index);
 307         }
 308
 309         ViewBase::remove_decode_signal(signal);
 310
 311         if (signal.get() == signal_) {
 312                 reset_data();
 313                 update_data();
 314                 reset_view_state();
 315         }
 316 }
 317
 318 void View::save_settings(QSettings &settings) const
 319 {
 320         ViewBase::save_settings(settings);
 321
 322         settings.setValue("view_mode", view_mode_selector_->currentIndex());
 323         settings.setValue("hide_hidden", hide_hidden_cb_->isChecked());
 324 }
 325
 326 void View::restore_settings(QSettings &settings)
 327 {
 328         ViewBase::restore_settings(settings);
 329
 330         if (settings.contains("view_mode"))
 331                 view_mode_selector_->setCurrentIndex(settings.value("view_mode").toInt());
 332
 333         if (settings.contains("hide_hidden"))
 334                 hide_hidden_cb_->setChecked(settings.value("hide_hidden").toBool());
 335 }
 336
 337 void View::reset_data()
 338 {
 339         signal_ = nullptr;
 340         decoder_ = nullptr;
 341 }
 342
 343 void View::update_data()
 344 {
 345         model_->set_signal_and_segment(signal_, current_segment_);
 346 }
 347
 348 void View::save_data_as_csv(unsigned int save_type) const
 349 {
 350         // Note: We try to follow RFC 4180 (https://tools.ietf.org/html/rfc4180)
 351
 352         assert(decoder_);
 353         assert(signal_);
 354
 355         if (!signal_)
 356                 return;
 357
 358         const bool save_all = !table_view_->selectionModel()->hasSelection();
 359
 360         GlobalSettings settings;
 361         const QString dir = settings.value("MainWindow/SaveDirectory").toString();
 362
 363         const QString file_name = QFileDialog::getSaveFileName(
 364                 parent_, tr("Save Annotations as CSV"), dir, tr("CSV Files (*.csv);;Text Files (*.txt);;All Files (*)"));
 365
 366         if (file_name.isEmpty())
 367                 return;
 368
 369         QFile file(file_name);
 370         if (file.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
 371                 QTextStream out_stream(&file);
 372
 373                 if (save_all)
 374                         table_view_->selectAll();
 375
 376                 // Write out header columns in visual order, not logical order
 377                 for (int i = 0; i < table_view_->horizontalHeader()->count(); i++) {
 378                         int column = table_view_->horizontalHeader()->logicalIndex(i);
 379
 380                         if (table_view_->horizontalHeader()->isSectionHidden(column))
 381                                 continue;
 382
 383                         const QString title = filter_proxy_model_->headerData(column, Qt::Horizontal, Qt::DisplayRole).toString();
 384
 385                         if (save_type == SaveTypeCSVEscaped)
 386                                 out_stream << title;
 387                         else
 388                                 out_stream << '"' << title << '"';
 389
 390                         if (i < (table_view_->horizontalHeader()->count() - 1))
 391                                 out_stream << ",";
 392                 }
 393                 out_stream << '\r' << '\n';
 394
 395
 396                 QModelIndexList selected_rows = table_view_->selectionModel()->selectedRows();
 397
 398                 for (int i = 0; i < selected_rows.size(); i++) {
 399                         const int row = selected_rows.at(i).row();
 400
 401                         // Write out columns in visual order, not logical order
 402                         for (int c = 0; c < table_view_->horizontalHeader()->count(); c++) {
 403                                 const int column = table_view_->horizontalHeader()->logicalIndex(c);
 404
 405                                 if (table_view_->horizontalHeader()->isSectionHidden(column))
 406                                         continue;
 407
 408                                 const QModelIndex idx = filter_proxy_model_->index(row, column);
 409                                 QString s = filter_proxy_model_->data(idx, Qt::DisplayRole).toString();
 410
 411                                 if (save_type == SaveTypeCSVEscaped)
 412                                         out_stream << s.replace(",", "\\,");
 413                                 else
 414                                         out_stream << '"' << s.replace("\"", "\"\"") << '"';
 415
 416                                 if (c < (table_view_->horizontalHeader()->count() - 1))
 417                                         out_stream << ",";
 418                         }
 419
 420                         out_stream << '\r' << '\n';
 421                 }
 422
 423                 if (out_stream.status() == QTextStream::Ok) {
 424                         if (save_all)
 425                                 table_view_->clearSelection();
 426
 427                         return;
 428                 }
 429         }
 430
 431         QMessageBox msg(parent_);
 432         msg.setText(tr("Error") + "\n\n" + tr("File %1 could not be written to.").arg(file_name));
 433         msg.setStandardButtons(QMessageBox::Ok);
 434         msg.setIcon(QMessageBox::Warning);
 435         msg.exec();
 436 }
 437
 438 void View::on_selected_decoder_changed(int index)
 439 {
 440         if (signal_) {
 441                 disconnect(signal_, SIGNAL(color_changed(QColor)));
 442                 disconnect(signal_, SIGNAL(new_annotations()));
 443                 disconnect(signal_, SIGNAL(decode_reset()));
 444         }
 445
 446         reset_data();
 447
 448         decoder_ = (Decoder*)decoder_selector_->itemData(index).value<void*>();
 449
 450         // Find the signal that contains the selected decoder
 451         for (const shared_ptr<DecodeSignal>& ds : decode_signals_)
 452                 for (const shared_ptr<Decoder>& dec : ds->decoder_stack())
 453                         if (decoder_ == dec.get())
 454                                 signal_ = ds.get();
 455
 456         if (signal_) {
 457                 connect(signal_, SIGNAL(color_changed(QColor)), this, SLOT(on_signal_color_changed(QColor)));
 458                 connect(signal_, SIGNAL(new_annotations()), this, SLOT(on_new_annotations()));
 459                 connect(signal_, SIGNAL(decode_reset()), this, SLOT(on_decoder_reset()));
 460         }
 461
 462         update_data();
 463 }
 464
 465 void View::on_hide_hidden_changed(bool checked)
 466 {
 467         model_->set_hide_hidden(checked);
 468
 469         // Force repaint, otherwise the new selection isn't shown for some reason
 470         table_view_->viewport()->update();
 471 }
 472
 473 void View::on_view_mode_changed(int index)
 474 {
 475         if (index == ViewModeAll)
 476                 filter_proxy_model_->enable_range_filtering(false);
 477
 478         if (index == ViewModeVisible) {
 479                 MetadataObject *md_obj =
 480                         session_.metadata_obj_manager()->find_object_by_type(MetadataObjMainViewRange);
 481                 assert(md_obj);
 482
 483                 int64_t start_sample = md_obj->value(MetadataValueStartSample).toLongLong();
 484                 int64_t end_sample = md_obj->value(MetadataValueEndSample).toLongLong();
 485
 486                 filter_proxy_model_->enable_range_filtering(true);
 487                 filter_proxy_model_->set_sample_range(max((int64_t)0, start_sample),
 488                         max((int64_t)0, end_sample));
 489         }
 490
 491         if (index == ViewModeLatest) {
 492                 filter_proxy_model_->enable_range_filtering(false);
 493
 494                 table_view_->scrollTo(
 495                         filter_proxy_model_->mapFromSource(model_->index(model_->rowCount() - 1, 0)),
 496                         QAbstractItemView::PositionAtBottom);
 497         }
 498 }
 499
 500 void View::on_signal_name_changed(const QString &name)
 501 {
 502         (void)name;
 503
 504         SignalBase* sb = qobject_cast<SignalBase*>(QObject::sender());
 505         assert(sb);
 506
 507         DecodeSignal* signal = dynamic_cast<DecodeSignal*>(sb);
 508         assert(signal);
 509
 510         // Update the top-level decoder provided by this signal
 511         auto stack = signal->decoder_stack();
 512         if (!stack.empty()) {
 513                 shared_ptr<Decoder>& dec = stack.at(0);
 514                 int index = decoder_selector_->findData(QVariant::fromValue((void*)dec.get()));
 515
 516                 if (index != -1)
 517                         decoder_selector_->setItemText(index, signal->name());
 518         }
 519 }
 520
 521 void View::on_signal_color_changed(const QColor &color)
 522 {
 523         (void)color;
 524
 525         table_view_->update();
 526 }
 527
 528 void View::on_new_annotations()
 529 {
 530         if (view_mode_selector_->currentIndex() == ViewModeLatest) {
 531                 update_data();
 532                 table_view_->scrollTo(
 533                         filter_proxy_model_->index(filter_proxy_model_->rowCount() - 1, 0),
 534                         QAbstractItemView::PositionAtBottom);
 535         } else {
 536                 if (!delayed_view_updater_.isActive())
 537                         delayed_view_updater_.start();
 538         }
 539 }
 540
 541 void View::on_decoder_reset()
 542 {
 543         // Invalidate the model's data connection immediately - otherwise we
 544         // will use a stale pointer in model_->index() when called from the table view
 545         model_->set_signal_and_segment(signal_, current_segment_);
 546 }
 547
 548 void View::on_decoder_stacked(void* decoder)
 549 {
 550         Decoder* d = static_cast<Decoder*>(decoder);
 551
 552         // Find the signal that contains the selected decoder
 553         DecodeSignal* signal = nullptr;
 554
 555         for (const shared_ptr<DecodeSignal>& ds : decode_signals_)
 556                 for (const shared_ptr<Decoder>& dec : ds->decoder_stack())
 557                         if (d == dec.get())
 558                                 signal = ds.get();
 559
 560         assert(signal);
 561
 562         const shared_ptr<Decoder>& dec = signal->decoder_stack().at(0);
 563         int index = decoder_selector_->findData(QVariant::fromValue((void*)dec.get()));
 564
 565         if (index == -1) {
 566                 // Add the decoder to the list
 567                 decoder_selector_->addItem(signal->name(), QVariant::fromValue((void*)d));
 568         }
 569 }
 570
 571 void View::on_decoder_removed(void* decoder)
 572 {
 573         Decoder* d = static_cast<Decoder*>(decoder);
 574
 575         // Remove the decoder from the list
 576         int index = decoder_selector_->findData(QVariant::fromValue((void*)d));
 577
 578         if (index != -1)
 579                 decoder_selector_->removeItem(index);
 580 }
 581
 582 void View::on_actionSave_triggered(QAction* action)
 583 {
 584         int save_type = SaveTypeCSVQuoted;
 585
 586         if (action)
 587                 save_type = action->data().toInt();
 588
 589         save_data_as_csv(save_type);
 590 }
 591
 592 void View::on_table_item_clicked(const QModelIndex& index)
 593 {
 594         (void)index;
 595
 596         // Force repaint, otherwise the new selection isn't shown for some reason
 597         table_view_->viewport()->update();
 598 }
 599
 600 void View::on_table_item_double_clicked(const QModelIndex& index)
 601 {
 602         const Annotation* ann = static_cast<const Annotation*>(index.internalPointer());
 603
 604         shared_ptr<views::ViewBase> main_view = session_.main_view();
 605
 606         main_view->focus_on_range(ann->start_sample(), ann->end_sample());
 607 }
 608
 609 void View::on_table_header_requested(const QPoint& pos)
 610 {
 611         QMenu* menu = new QMenu(this);
 612
 613         for (int i = 0; i < table_view_->horizontalHeader()->count(); i++) {
 614                 int column = table_view_->horizontalHeader()->logicalIndex(i);
 615
 616                 const QString title = model_->headerData(column, Qt::Horizontal, Qt::DisplayRole).toString();
 617                 QAction* action = new QAction(title, this);
 618
 619                 action->setCheckable(true);
 620                 action->setChecked(!table_view_->horizontalHeader()->isSectionHidden(column));
 621                 action->setData(column);
 622
 623                 connect(action, SIGNAL(toggled(bool)), this, SLOT(on_table_header_toggled(bool)));
 624
 625                 menu->addAction(action);
 626         }
 627
 628         menu->popup(table_view_->horizontalHeader()->viewport()->mapToGlobal(pos));
 629 }
 630
 631 void View::on_table_header_toggled(bool checked)
 632 {
 633         QAction* action = qobject_cast<QAction*>(QObject::sender());
 634         assert(action);
 635
 636         const int column = action->data().toInt();
 637
 638         table_view_->horizontalHeader()->setSectionHidden(column, !checked);
 639 }
 640
 641 void View::on_metadata_object_changed(MetadataObject* obj,
 642         MetadataValueType value_type)
 643 {
 644         // Check if we need to update the model's data range. We only work on the
 645         // end sample value because the start sample value is updated first and
 646         // we don't want to update the model twice
 647
 648         if ((view_mode_selector_->currentIndex() == ViewModeVisible) &&
 649                 (obj->type() == MetadataObjMainViewRange) &&
 650                 (value_type == MetadataValueEndSample)) {
 651
 652                 int64_t start_sample = obj->value(MetadataValueStartSample).toLongLong();
 653                 int64_t end_sample = obj->value(MetadataValueEndSample).toLongLong();
 654
 655                 filter_proxy_model_->set_sample_range(max((int64_t)0, start_sample),
 656                         max((int64_t)0, end_sample));
 657         }
 658
 659         if (obj->type() == MetadataObjMousePos) {
 660                 QModelIndex first_visible_idx =
 661                         filter_proxy_model_->mapToSource(filter_proxy_model_->index(0, 0));
 662                 QModelIndex last_visible_idx =
 663                         filter_proxy_model_->mapToSource(filter_proxy_model_->index(filter_proxy_model_->rowCount() - 1, 0));
 664
 665                 if (first_visible_idx.isValid()) {
 666                         const QModelIndex first_highlighted_idx =
 667                                 model_->update_highlighted_rows(first_visible_idx, last_visible_idx,
 668                                         obj->value(MetadataValueStartSample).toLongLong());
 669
 670                         if (view_mode_selector_->currentIndex() == ViewModeVisible) {
 671                                 const QModelIndex idx = filter_proxy_model_->mapFromSource(first_highlighted_idx);
 672                                 table_view_->scrollTo(idx, QAbstractItemView::EnsureVisible);
 673                         }
 674                 }
 675         }
 676 }
 677
 678 void View::perform_delayed_view_update()
 679 {
 680         update_data();
 681 }
 682
 683
 684 } // namespace tabular_decoder
 685 } // namespace views
 686 } // namespace pv