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 void CustomTableView::keyPressEvent(QKeyEvent *event)
 143 {
 144         if ((event->key() == Qt::Key_Return) || (event->key() == Qt::Key_Enter))
 145                 activatedByKey(currentIndex());
 146         else
 147                 QTableView::keyPressEvent(event);
 148 }
 149
 150
 151 View::View(Session &session, bool is_main_view, QMainWindow *parent) :
 152         ViewBase(session, is_main_view, parent),
 153
 154         // Note: Place defaults in View::reset_view_state(), not here
 155         parent_(parent),
 156         decoder_selector_(new QComboBox()),
 157         hide_hidden_cb_(new QCheckBox()),
 158         view_mode_selector_(new QComboBox()),
 159         save_button_(new QToolButton()),
 160         save_action_(new QAction(this)),
 161         table_view_(new CustomTableView()),
 162         model_(new AnnotationCollectionModel(this)),
 163         filter_proxy_model_(new CustomFilterProxyModel(this)),
 164         signal_(nullptr)
 165 {
 166         QVBoxLayout *root_layout = new QVBoxLayout(this);
 167         root_layout->setContentsMargins(0, 0, 0, 0);
 168         root_layout->addWidget(table_view_);
 169
 170         // Create toolbar
 171         QToolBar* toolbar = new QToolBar();
 172         toolbar->setContextMenuPolicy(Qt::PreventContextMenu);
 173         parent->addToolBar(toolbar);
 174
 175         // Populate toolbar
 176         toolbar->addWidget(new QLabel(tr("Decoder:")));
 177         toolbar->addWidget(decoder_selector_);
 178         toolbar->addSeparator();
 179         toolbar->addWidget(save_button_);
 180         toolbar->addSeparator();
 181         toolbar->addWidget(view_mode_selector_);
 182         toolbar->addSeparator();
 183         toolbar->addWidget(hide_hidden_cb_);
 184
 185         connect(decoder_selector_, SIGNAL(currentIndexChanged(int)),
 186                 this, SLOT(on_selected_decoder_changed(int)));
 187         connect(view_mode_selector_, SIGNAL(currentIndexChanged(int)),
 188                 this, SLOT(on_view_mode_changed(int)));
 189         connect(hide_hidden_cb_, SIGNAL(toggled(bool)),
 190                 this, SLOT(on_hide_hidden_changed(bool)));
 191
 192         // Configure widgets
 193         decoder_selector_->setSizeAdjustPolicy(QComboBox::AdjustToContents);
 194
 195         for (int i = 0; i < ViewModeCount; i++)
 196                 view_mode_selector_->addItem(ViewModeNames[i], QVariant::fromValue(i));
 197
 198         hide_hidden_cb_->setText(tr("Hide Hidden Rows/Classes"));
 199         hide_hidden_cb_->setChecked(true);
 200
 201         // Configure actions
 202         save_action_->setText(tr("&Save..."));
 203         save_action_->setIcon(QIcon::fromTheme("document-save-as",
 204                 QIcon(":/icons/document-save-as.png")));
 205 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
 206         save_action_->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_S));
 207 #else
 208         save_action_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_S));
 209 #endif
 210         connect(save_action_, SIGNAL(triggered(bool)),
 211                 this, SLOT(on_actionSave_triggered()));
 212
 213         QMenu *save_menu = new QMenu();
 214         connect(save_menu, SIGNAL(triggered(QAction*)),
 215                 this, SLOT(on_actionSave_triggered(QAction*)));
 216
 217         for (int i = 0; i < SaveTypeCount; i++) {
 218                 QAction *const action = save_menu->addAction(tr(SaveTypeNames[i]));
 219                 action->setData(QVariant::fromValue(i));
 220         }
 221
 222         save_button_->setMenu(save_menu);
 223         save_button_->setDefaultAction(save_action_);
 224         save_button_->setPopupMode(QToolButton::MenuButtonPopup);
 225
 226         // Set up the models and the table view
 227         filter_proxy_model_->setSourceModel(model_);
 228         table_view_->setModel(filter_proxy_model_);
 229
 230         table_view_->setSelectionBehavior(QAbstractItemView::SelectRows);
 231         table_view_->setSelectionMode(QAbstractItemView::ContiguousSelection);
 232         table_view_->setSortingEnabled(true);
 233         table_view_->sortByColumn(0, Qt::AscendingOrder);
 234
 235         for (uint8_t i = model_->first_hidden_column(); i < model_->columnCount(); i++)
 236                 table_view_->setColumnHidden(i, true);
 237
 238         const int font_height = QFontMetrics(QApplication::font()).height();
 239         table_view_->verticalHeader()->setDefaultSectionSize((font_height * 5) / 4);
 240         table_view_->verticalHeader()->setVisible(false);
 241
 242         table_view_->horizontalHeader()->setStretchLastSection(true);
 243         table_view_->horizontalHeader()->setCascadingSectionResizes(true);
 244         table_view_->horizontalHeader()->setSectionsMovable(true);
 245         table_view_->horizontalHeader()->setContextMenuPolicy(Qt::CustomContextMenu);
 246
 247         table_view_->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 248         parent->setSizePolicy(table_view_->sizePolicy());
 249
 250         connect(table_view_, SIGNAL(clicked(const QModelIndex&)),
 251                 this, SLOT(on_table_item_clicked(const QModelIndex&)));
 252         connect(table_view_, SIGNAL(doubleClicked(const QModelIndex&)),
 253                 this, SLOT(on_table_item_double_clicked(const QModelIndex&)));
 254         connect(table_view_, SIGNAL(activatedByKey(const QModelIndex&)),
 255                 this, SLOT(on_table_item_double_clicked(const QModelIndex&)));
 256         connect(table_view_->horizontalHeader(), SIGNAL(customContextMenuRequested(const QPoint&)),
 257                 this, SLOT(on_table_header_requested(const QPoint&)));
 258
 259         // Set up metadata event handler
 260         session_.metadata_obj_manager()->add_observer(this);
 261
 262         reset_view_state();
 263 }
 264
 265 View::~View()
 266 {
 267         session_.metadata_obj_manager()->remove_observer(this);
 268 }
 269
 270 ViewType View::get_type() const
 271 {
 272         return ViewTypeTabularDecoder;
 273 }
 274
 275 void View::reset_view_state()
 276 {
 277         ViewBase::reset_view_state();
 278
 279         decoder_selector_->clear();
 280 }
 281
 282 void View::clear_decode_signals()
 283 {
 284         ViewBase::clear_decode_signals();
 285
 286         reset_data();
 287         reset_view_state();
 288 }
 289
 290 void View::add_decode_signal(shared_ptr<data::DecodeSignal> signal)
 291 {
 292         ViewBase::add_decode_signal(signal);
 293
 294         connect(signal.get(), SIGNAL(name_changed(const QString&)),
 295                 this, SLOT(on_signal_name_changed(const QString&)));
 296
 297         // Note: At time of initial creation, decode signals have no decoders so we
 298         // need to watch for decoder stacking events
 299
 300         connect(signal.get(), SIGNAL(decoder_stacked(void*)),
 301                 this, SLOT(on_decoder_stacked(void*)));
 302         connect(signal.get(), SIGNAL(decoder_removed(void*)),
 303                 this, SLOT(on_decoder_removed(void*)));
 304
 305         // Add the top-level decoder provided by an already-existing signal
 306         auto stack = signal->decoder_stack();
 307         if (!stack.empty()) {
 308                 shared_ptr<Decoder>& dec = stack.at(0);
 309                 decoder_selector_->addItem(signal->name(), QVariant::fromValue((void*)dec.get()));
 310         }
 311 }
 312
 313 void View::remove_decode_signal(shared_ptr<data::DecodeSignal> signal)
 314 {
 315         // Remove all decoders provided by this signal
 316         for (const shared_ptr<Decoder>& dec : signal->decoder_stack()) {
 317                 int index = decoder_selector_->findData(QVariant::fromValue((void*)dec.get()));
 318
 319                 if (index != -1)
 320                         decoder_selector_->removeItem(index);
 321         }
 322
 323         ViewBase::remove_decode_signal(signal);
 324
 325         if (signal.get() == signal_) {
 326                 reset_data();
 327                 update_data();
 328                 reset_view_state();
 329         }
 330 }
 331
 332 void View::save_settings(QSettings &settings) const
 333 {
 334         ViewBase::save_settings(settings);
 335
 336         settings.setValue("view_mode", view_mode_selector_->currentIndex());
 337         settings.setValue("hide_hidden", hide_hidden_cb_->isChecked());
 338 }
 339
 340 void View::restore_settings(QSettings &settings)
 341 {
 342         ViewBase::restore_settings(settings);
 343
 344         if (settings.contains("view_mode"))
 345                 view_mode_selector_->setCurrentIndex(settings.value("view_mode").toInt());
 346
 347         if (settings.contains("hide_hidden"))
 348                 hide_hidden_cb_->setChecked(settings.value("hide_hidden").toBool());
 349 }
 350
 351 void View::reset_data()
 352 {
 353         signal_ = nullptr;
 354         decoder_ = nullptr;
 355 }
 356
 357 void View::update_data()
 358 {
 359         model_->set_signal_and_segment(signal_, current_segment_);
 360 }
 361
 362 void View::save_data_as_csv(unsigned int save_type) const
 363 {
 364         // Note: We try to follow RFC 4180 (https://tools.ietf.org/html/rfc4180)
 365
 366         assert(decoder_);
 367         assert(signal_);
 368
 369         if (!signal_)
 370                 return;
 371
 372         const bool save_all = !table_view_->selectionModel()->hasSelection();
 373
 374         GlobalSettings settings;
 375         const QString dir = settings.value("MainWindow/SaveDirectory").toString();
 376
 377         const QString file_name = QFileDialog::getSaveFileName(
 378                 parent_, tr("Save Annotations as CSV"), dir, tr("CSV Files (*.csv);;Text Files (*.txt);;All Files (*)"));
 379
 380         if (file_name.isEmpty())
 381                 return;
 382
 383         QFile file(file_name);
 384         if (file.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
 385                 QTextStream out_stream(&file);
 386
 387                 if (save_all)
 388                         table_view_->selectAll();
 389
 390                 // Write out header columns in visual order, not logical order
 391                 for (int i = 0; i < table_view_->horizontalHeader()->count(); i++) {
 392                         int column = table_view_->horizontalHeader()->logicalIndex(i);
 393
 394                         if (table_view_->horizontalHeader()->isSectionHidden(column))
 395                                 continue;
 396
 397                         const QString title = filter_proxy_model_->headerData(column, Qt::Horizontal, Qt::DisplayRole).toString();
 398
 399                         if (save_type == SaveTypeCSVEscaped)
 400                                 out_stream << title;
 401                         else
 402                                 out_stream << '"' << title << '"';
 403
 404                         if (i < (table_view_->horizontalHeader()->count() - 1))
 405                                 out_stream << ",";
 406                 }
 407                 out_stream << '\r' << '\n';
 408
 409
 410                 QModelIndexList selected_rows = table_view_->selectionModel()->selectedRows();
 411
 412                 for (int i = 0; i < selected_rows.size(); i++) {
 413                         const int row = selected_rows.at(i).row();
 414
 415                         // Write out columns in visual order, not logical order
 416                         for (int c = 0; c < table_view_->horizontalHeader()->count(); c++) {
 417                                 const int column = table_view_->horizontalHeader()->logicalIndex(c);
 418
 419                                 if (table_view_->horizontalHeader()->isSectionHidden(column))
 420                                         continue;
 421
 422                                 const QModelIndex idx = filter_proxy_model_->index(row, column);
 423                                 QString s = filter_proxy_model_->data(idx, Qt::DisplayRole).toString();
 424
 425                                 if (save_type == SaveTypeCSVEscaped)
 426                                         out_stream << s.replace(",", "\\,");
 427                                 else
 428                                         out_stream << '"' << s.replace("\"", "\"\"") << '"';
 429
 430                                 if (c < (table_view_->horizontalHeader()->count() - 1))
 431                                         out_stream << ",";
 432                         }
 433
 434                         out_stream << '\r' << '\n';
 435                 }
 436
 437                 if (out_stream.status() == QTextStream::Ok) {
 438                         if (save_all)
 439                                 table_view_->clearSelection();
 440
 441                         return;
 442                 }
 443         }
 444
 445         QMessageBox msg(parent_);
 446         msg.setText(tr("Error") + "\n\n" + tr("File %1 could not be written to.").arg(file_name));
 447         msg.setStandardButtons(QMessageBox::Ok);
 448         msg.setIcon(QMessageBox::Warning);
 449         msg.exec();
 450 }
 451
 452 void View::on_selected_decoder_changed(int index)
 453 {
 454         if (signal_) {
 455                 disconnect(signal_, SIGNAL(color_changed(QColor)));
 456                 disconnect(signal_, SIGNAL(new_annotations()));
 457                 disconnect(signal_, SIGNAL(decode_reset()));
 458         }
 459
 460         reset_data();
 461
 462         decoder_ = (Decoder*)decoder_selector_->itemData(index).value<void*>();
 463
 464         // Find the signal that contains the selected decoder
 465         for (const shared_ptr<DecodeSignal>& ds : decode_signals_)
 466                 for (const shared_ptr<Decoder>& dec : ds->decoder_stack())
 467                         if (decoder_ == dec.get())
 468                                 signal_ = ds.get();
 469
 470         if (signal_) {
 471                 connect(signal_, SIGNAL(color_changed(QColor)), this, SLOT(on_signal_color_changed(QColor)));
 472                 connect(signal_, SIGNAL(new_annotations()), this, SLOT(on_new_annotations()));
 473                 connect(signal_, SIGNAL(decode_reset()), this, SLOT(on_decoder_reset()));
 474         }
 475
 476         update_data();
 477
 478         // Force repaint, otherwise the new selection isn't shown for some reason
 479         table_view_->viewport()->update();
 480 }
 481
 482 void View::on_hide_hidden_changed(bool checked)
 483 {
 484         model_->set_hide_hidden(checked);
 485
 486         // Force repaint, otherwise the new selection isn't shown for some reason
 487         table_view_->viewport()->update();
 488 }
 489
 490 void View::on_view_mode_changed(int index)
 491 {
 492         if (index == ViewModeAll)
 493                 filter_proxy_model_->enable_range_filtering(false);
 494
 495         if (index == ViewModeVisible) {
 496                 MetadataObject *md_obj =
 497                         session_.metadata_obj_manager()->find_object_by_type(MetadataObjMainViewRange);
 498                 assert(md_obj);
 499
 500                 int64_t start_sample = md_obj->value(MetadataValueStartSample).toLongLong();
 501                 int64_t end_sample = md_obj->value(MetadataValueEndSample).toLongLong();
 502
 503                 filter_proxy_model_->enable_range_filtering(true);
 504                 filter_proxy_model_->set_sample_range(max((int64_t)0, start_sample),
 505                         max((int64_t)0, end_sample));
 506         }
 507
 508         if (index == ViewModeLatest) {
 509                 filter_proxy_model_->enable_range_filtering(false);
 510
 511                 table_view_->scrollTo(
 512                         filter_proxy_model_->mapFromSource(model_->index(model_->rowCount() - 1, 0)),
 513                         QAbstractItemView::PositionAtBottom);
 514         }
 515 }
 516
 517 void View::on_signal_name_changed(const QString &name)
 518 {
 519         (void)name;
 520
 521         SignalBase* sb = qobject_cast<SignalBase*>(QObject::sender());
 522         assert(sb);
 523
 524         DecodeSignal* signal = dynamic_cast<DecodeSignal*>(sb);
 525         assert(signal);
 526
 527         // Update the top-level decoder provided by this signal
 528         auto stack = signal->decoder_stack();
 529         if (!stack.empty()) {
 530                 shared_ptr<Decoder>& dec = stack.at(0);
 531                 int index = decoder_selector_->findData(QVariant::fromValue((void*)dec.get()));
 532
 533                 if (index != -1)
 534                         decoder_selector_->setItemText(index, signal->name());
 535         }
 536 }
 537
 538 void View::on_signal_color_changed(const QColor &color)
 539 {
 540         (void)color;
 541
 542         // Force immediate repaint, otherwise it's updated after the header popup is closed
 543         table_view_->viewport()->update();
 544 }
 545
 546 void View::on_new_annotations()
 547 {
 548         if (view_mode_selector_->currentIndex() == ViewModeLatest) {
 549                 update_data();
 550                 table_view_->scrollTo(
 551                         filter_proxy_model_->index(filter_proxy_model_->rowCount() - 1, 0),
 552                         QAbstractItemView::PositionAtBottom);
 553         } else {
 554                 if (!delayed_view_updater_.isActive())
 555                         delayed_view_updater_.start();
 556         }
 557 }
 558
 559 void View::on_decoder_reset()
 560 {
 561         // Invalidate the model's data connection immediately - otherwise we
 562         // will use a stale pointer in model_->index() when called from the table view
 563         model_->set_signal_and_segment(signal_, current_segment_);
 564 }
 565
 566 void View::on_decoder_stacked(void* decoder)
 567 {
 568         Decoder* d = static_cast<Decoder*>(decoder);
 569
 570         // Find the signal that contains the selected decoder
 571         DecodeSignal* signal = nullptr;
 572
 573         for (const shared_ptr<DecodeSignal>& ds : decode_signals_)
 574                 for (const shared_ptr<Decoder>& dec : ds->decoder_stack())
 575                         if (d == dec.get())
 576                                 signal = ds.get();
 577
 578         assert(signal);
 579
 580         const shared_ptr<Decoder>& dec = signal->decoder_stack().at(0);
 581         int index = decoder_selector_->findData(QVariant::fromValue((void*)dec.get()));
 582
 583         if (index == -1) {
 584                 // Add the decoder to the list
 585                 decoder_selector_->addItem(signal->name(), QVariant::fromValue((void*)d));
 586         }
 587 }
 588
 589 void View::on_decoder_removed(void* decoder)
 590 {
 591         Decoder* d = static_cast<Decoder*>(decoder);
 592
 593         // Remove the decoder from the list
 594         int index = decoder_selector_->findData(QVariant::fromValue((void*)d));
 595
 596         if (index != -1)
 597                 decoder_selector_->removeItem(index);
 598 }
 599
 600 void View::on_actionSave_triggered(QAction* action)
 601 {
 602         int save_type = SaveTypeCSVQuoted;
 603
 604         if (action)
 605                 save_type = action->data().toInt();
 606
 607         save_data_as_csv(save_type);
 608 }
 609
 610 void View::on_table_item_clicked(const QModelIndex& index)
 611 {
 612         (void)index;
 613
 614         // Force repaint, otherwise the new selection isn't shown for some reason
 615         table_view_->viewport()->update();
 616 }
 617
 618 void View::on_table_item_double_clicked(const QModelIndex& index)
 619 {
 620         const QModelIndex src_idx = filter_proxy_model_->mapToSource(index);
 621
 622         const Annotation* ann = static_cast<const Annotation*>(src_idx.internalPointer());
 623         assert(ann);
 624
 625         shared_ptr<views::ViewBase> main_view = session_.main_view();
 626
 627         main_view->focus_on_range(ann->start_sample(), ann->end_sample());
 628 }
 629
 630 void View::on_table_header_requested(const QPoint& pos)
 631 {
 632         QMenu* menu = new QMenu(this);
 633
 634         for (int i = 0; i < table_view_->horizontalHeader()->count(); i++) {
 635                 int column = table_view_->horizontalHeader()->logicalIndex(i);
 636
 637                 const QString title =
 638                         filter_proxy_model_->headerData(column, Qt::Horizontal, Qt::DisplayRole).toString();
 639                 QAction* action = new QAction(title, this);
 640
 641                 action->setCheckable(true);
 642                 action->setChecked(!table_view_->horizontalHeader()->isSectionHidden(column));
 643                 action->setData(column);
 644
 645                 connect(action, SIGNAL(toggled(bool)), this, SLOT(on_table_header_toggled(bool)));
 646
 647                 menu->addAction(action);
 648         }
 649
 650         menu->popup(table_view_->horizontalHeader()->viewport()->mapToGlobal(pos));
 651 }
 652
 653 void View::on_table_header_toggled(bool checked)
 654 {
 655         QAction* action = qobject_cast<QAction*>(QObject::sender());
 656         assert(action);
 657
 658         const int column = action->data().toInt();
 659
 660         table_view_->horizontalHeader()->setSectionHidden(column, !checked);
 661 }
 662
 663 void View::on_metadata_object_changed(MetadataObject* obj,
 664         MetadataValueType value_type)
 665 {
 666         // Check if we need to update the model's data range. We only work on the
 667         // end sample value because the start sample value is updated first and
 668         // we don't want to update the model twice
 669         if ((view_mode_selector_->currentIndex() == ViewModeVisible) &&
 670                 (obj->type() == MetadataObjMainViewRange) &&
 671                 (value_type == MetadataValueEndSample)) {
 672
 673                 int64_t start_sample = obj->value(MetadataValueStartSample).toLongLong();
 674                 int64_t end_sample = obj->value(MetadataValueEndSample).toLongLong();
 675
 676                 filter_proxy_model_->set_sample_range(max((int64_t)0, start_sample),
 677                         max((int64_t)0, end_sample));
 678         }
 679
 680         if (obj->type() == MetadataObjMousePos) {
 681                 QModelIndex first_visible_idx =
 682                         filter_proxy_model_->mapToSource(filter_proxy_model_->index(0, 0));
 683                 QModelIndex last_visible_idx =
 684                         filter_proxy_model_->mapToSource(filter_proxy_model_->index(filter_proxy_model_->rowCount() - 1, 0));
 685
 686                 if (first_visible_idx.isValid()) {
 687                         const QModelIndex first_highlighted_idx =
 688                                 model_->update_highlighted_rows(first_visible_idx, last_visible_idx,
 689                                         obj->value(MetadataValueStartSample).toLongLong());
 690
 691                         if (view_mode_selector_->currentIndex() == ViewModeVisible) {
 692                                 const QModelIndex idx = filter_proxy_model_->mapFromSource(first_highlighted_idx);
 693                                 table_view_->scrollTo(idx, QAbstractItemView::EnsureVisible);
 694                         }
 695
 696                         // Force repaint, otherwise the table doesn't immediately update for some reason
 697                         table_view_->viewport()->update();
 698                 }
 699         }
 700 }
 701
 702 void View::perform_delayed_view_update()
 703 {
 704         update_data();
 705 }
 706
 707
 708 } // namespace tabular_decoder
 709 } // namespace views
 710 } // namespace pv