pv/views/trace/logicsignal.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
   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 <extdef.h>
  21
  22 #include <cassert>
  23 #include <cmath>
  24
  25 #include <algorithm>
  26
  27 #include <QApplication>
  28 #include <QFormLayout>
  29 #include <QToolBar>
  30
  31 #include "logicsignal.hpp"
  32 #include "view.hpp"
  33
  34 #include <pv/data/logic.hpp>
  35 #include <pv/data/logicsegment.hpp>
  36 #include <pv/data/signalbase.hpp>
  37 #include <pv/devicemanager.hpp>
  38 #include <pv/devices/device.hpp>
  39 #include <pv/globalsettings.hpp>
  40 #include <pv/session.hpp>
  41
  42 #include <libsigrokcxx/libsigrokcxx.hpp>
  43
  44 using std::deque;
  45 using std::max;
  46 using std::make_pair;
  47 using std::min;
  48 using std::none_of;
  49 using std::out_of_range;
  50 using std::pair;
  51 using std::shared_ptr;
  52 using std::vector;
  53
  54 using sigrok::ConfigKey;
  55 using sigrok::Capability;
  56 using sigrok::Trigger;
  57 using sigrok::TriggerMatch;
  58 using sigrok::TriggerMatchType;
  59
  60 using pv::data::LogicSegment;
  61
  62 namespace pv {
  63 namespace views {
  64 namespace trace {
  65
  66 const float LogicSignal::Oversampling = 2.0f;
  67
  68 const QColor LogicSignal::EdgeColor(0x80, 0x80, 0x80);
  69 const QColor LogicSignal::HighColor(0x00, 0xC0, 0x00);
  70 const QColor LogicSignal::LowColor(0xC0, 0x00, 0x00);
  71 const QColor LogicSignal::SamplingPointColor(0x77, 0x77, 0x77);
  72
  73 const QColor LogicSignal::SignalColors[10] = {
  74         QColor(0x16, 0x19, 0x1A),       // Black
  75         QColor(0x8F, 0x52, 0x02),       // Brown
  76         QColor(0xCC, 0x00, 0x00),       // Red
  77         QColor(0xF5, 0x79, 0x00),       // Orange
  78         QColor(0xED, 0xD4, 0x00),       // Yellow
  79         QColor(0x73, 0xD2, 0x16),       // Green
  80         QColor(0x34, 0x65, 0xA4),       // Blue
  81         QColor(0x75, 0x50, 0x7B),       // Violet
  82         QColor(0x88, 0x8A, 0x85),       // Grey
  83         QColor(0xEE, 0xEE, 0xEC),       // White
  84 };
  85
  86 QColor LogicSignal::TriggerMarkerBackgroundColor = QColor(0xED, 0xD4, 0x00);
  87 const int LogicSignal::TriggerMarkerPadding = 2;
  88 const char* LogicSignal::TriggerMarkerIcons[8] = {
  89         nullptr,
  90         ":/icons/trigger-marker-low.svg",
  91         ":/icons/trigger-marker-high.svg",
  92         ":/icons/trigger-marker-rising.svg",
  93         ":/icons/trigger-marker-falling.svg",
  94         ":/icons/trigger-marker-change.svg",
  95         nullptr,
  96         nullptr
  97 };
  98
  99 QCache<QString, const QIcon> LogicSignal::icon_cache_;
 100 QCache<QString, const QPixmap> LogicSignal::pixmap_cache_;
 101
 102 LogicSignal::LogicSignal(
 103         pv::Session &session,
 104         shared_ptr<devices::Device> device,
 105         shared_ptr<data::SignalBase> base) :
 106         Signal(session, base),
 107         device_(device),
 108         trigger_types_(get_trigger_types()),
 109         trigger_none_(nullptr),
 110         trigger_rising_(nullptr),
 111         trigger_high_(nullptr),
 112         trigger_falling_(nullptr),
 113         trigger_low_(nullptr),
 114         trigger_change_(nullptr)
 115 {
 116         shared_ptr<Trigger> trigger;
 117
 118         base_->set_color(SignalColors[base->index() % countof(SignalColors)]);
 119
 120         GlobalSettings settings;
 121         signal_height_ = settings.value(GlobalSettings::Key_View_DefaultLogicHeight).toInt();
 122         show_sampling_points_ =
 123                 settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool();
 124         fill_high_areas_ =
 125                 settings.value(GlobalSettings::Key_View_FillSignalHighAreas).toBool();
 126         high_fill_color_ = QColor::fromRgba(settings.value(
 127                 GlobalSettings::Key_View_FillSignalHighAreaColor).value<uint32_t>());
 128
 129         /* Populate this channel's trigger setting with whatever we
 130          * find in the current session trigger, if anything. */
 131         trigger_match_ = nullptr;
 132         if ((trigger = session_.session()->trigger()))
 133                 for (auto stage : trigger->stages())
 134                         for (auto match : stage->matches())
 135                                 if (match->channel() == base_->channel())
 136                                         trigger_match_ = match->type();
 137 }
 138
 139 shared_ptr<pv::data::SignalData> LogicSignal::data() const
 140 {
 141         return base_->logic_data();
 142 }
 143
 144 shared_ptr<pv::data::Logic> LogicSignal::logic_data() const
 145 {
 146         return base_->logic_data();
 147 }
 148
 149 void LogicSignal::save_settings(QSettings &settings) const
 150 {
 151         settings.setValue("trace_height", signal_height_);
 152 }
 153
 154 void LogicSignal::restore_settings(QSettings &settings)
 155 {
 156         if (settings.contains("trace_height")) {
 157                 const int old_height = signal_height_;
 158                 signal_height_ = settings.value("trace_height").toInt();
 159
 160                 if ((signal_height_ != old_height) && owner_) {
 161                         // Call order is important, otherwise the lazy event handler won't work
 162                         owner_->extents_changed(false, true);
 163                         owner_->row_item_appearance_changed(false, true);
 164                 }
 165         }
 166 }
 167
 168 pair<int, int> LogicSignal::v_extents() const
 169 {
 170         const int signal_margin =
 171                 QFontMetrics(QApplication::font()).height() / 2;
 172         return make_pair(-signal_height_ - signal_margin, signal_margin);
 173 }
 174
 175 void LogicSignal::paint_mid(QPainter &p, ViewItemPaintParams &pp)
 176 {
 177         QLineF *line;
 178
 179         vector< pair<int64_t, bool> > edges;
 180
 181         assert(base_);
 182         assert(owner_);
 183
 184         const int y = get_visual_y();
 185
 186         if (!base_->enabled())
 187                 return;
 188
 189         const float low_offset = y + 0.5f;
 190         const float high_offset = low_offset - signal_height_;
 191
 192         shared_ptr<LogicSegment> segment = get_logic_segment_to_paint();
 193         if (!segment || (segment->get_sample_count() == 0))
 194                 return;
 195
 196         double samplerate = segment->samplerate();
 197
 198         // Show sample rate as 1Hz when it is unknown
 199         if (samplerate == 0.0)
 200                 samplerate = 1.0;
 201
 202         const double pixels_offset = pp.pixels_offset();
 203         const pv::util::Timestamp& start_time = segment->start_time();
 204         const int64_t last_sample = (int64_t)segment->get_sample_count() - 1;
 205         const double samples_per_pixel = samplerate * pp.scale();
 206         const double pixels_per_sample = 1 / samples_per_pixel;
 207         const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
 208         const pv::util::Timestamp end = start + samples_per_pixel * pp.width();
 209
 210         const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
 211                 (int64_t)0), last_sample);
 212         const uint64_t end_sample = min(max(ceil(end).convert_to<int64_t>(),
 213                 (int64_t)0), last_sample);
 214
 215         segment->get_subsampled_edges(edges, start_sample, end_sample,
 216                 samples_per_pixel / Oversampling, base_->index());
 217         assert(edges.size() >= 2);
 218
 219         const float first_sample_x =
 220                 pp.left() + (edges.front().first / samples_per_pixel - pixels_offset);
 221         const float last_sample_x =
 222                 pp.left() + (edges.back().first / samples_per_pixel - pixels_offset);
 223
 224         // Check whether we need to paint the sampling points
 225         const bool show_sampling_points = show_sampling_points_ && (samples_per_pixel < 0.25);
 226         vector<QRectF> sampling_points;
 227         float sampling_point_x = first_sample_x;
 228         int64_t sampling_point_sample = start_sample;
 229         const int w = 2;
 230
 231         if (show_sampling_points)
 232                 sampling_points.reserve(end_sample - start_sample + 1);
 233
 234         vector<QRectF> high_rects;
 235         float rising_edge_x;
 236         bool rising_edge_seen = false;
 237
 238         // Paint the edges
 239         const unsigned int edge_count = edges.size() - 2;
 240         QLineF *const edge_lines = new QLineF[edge_count];
 241         line = edge_lines;
 242
 243         if (edges.front().second) {
 244                 // Beginning of trace is high
 245                 rising_edge_x = first_sample_x;
 246                 rising_edge_seen = true;
 247         }
 248
 249         for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) {
 250                 // Note: multiple edges occupying a single pixel are represented by an edge
 251                 // with undefined logic level. This means that only the first falling edge
 252                 // after a rising edge corresponds to said rising edge - and vice versa. If
 253                 // more edges with the same logic level follow, they denote multiple edges.
 254
 255                 const float x = pp.left() + ((*i).first / samples_per_pixel - pixels_offset);
 256                 *line++ = QLineF(x, high_offset, x, low_offset);
 257
 258                 if (fill_high_areas_) {
 259                         // Any edge terminates a high area
 260                         if (rising_edge_seen) {
 261                                 const int width = x - rising_edge_x;
 262                                 if (width > 0)
 263                                         high_rects.emplace_back(rising_edge_x, high_offset,
 264                                                 width, signal_height_);
 265                                 rising_edge_seen = false;
 266                         }
 267
 268                         // Only rising edges start high areas
 269                         if ((*i).second) {
 270                                 rising_edge_x = x;
 271                                 rising_edge_seen = true;
 272                         }
 273                 }
 274
 275                 if (show_sampling_points)
 276                         while (sampling_point_sample < (*i).first) {
 277                                 const float y = (*i).second ? low_offset : high_offset;
 278                                 sampling_points.emplace_back(
 279                                         QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
 280                                 sampling_point_sample++;
 281                                 sampling_point_x += pixels_per_sample;
 282                         };
 283         }
 284
 285         // Calculate the sample points from the last edge to the end of the trace
 286         if (show_sampling_points)
 287                 while ((uint64_t)sampling_point_sample <= end_sample) {
 288                         // Signal changed after the last edge, so the level is inverted
 289                         const float y = (edges.cend() - 1)->second ? high_offset : low_offset;
 290                         sampling_points.emplace_back(
 291                                 QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
 292                         sampling_point_sample++;
 293                         sampling_point_x += pixels_per_sample;
 294                 };
 295
 296         if (fill_high_areas_) {
 297                 // Add last high rectangle if the signal is still high at the end of the trace
 298                 if (rising_edge_seen && (edges.cend() - 1)->second)
 299                         high_rects.emplace_back(rising_edge_x, high_offset,
 300                                 last_sample_x - rising_edge_x, signal_height_);
 301
 302                 p.setPen(high_fill_color_);
 303                 p.setBrush(high_fill_color_);
 304                 p.drawRects((const QRectF*)(high_rects.data()), high_rects.size());
 305         }
 306
 307         p.setPen(EdgeColor);
 308         p.drawLines(edge_lines, edge_count);
 309         delete[] edge_lines;
 310
 311         // Paint the caps
 312         const unsigned int max_cap_line_count = edges.size();
 313         QLineF *const cap_lines = new QLineF[max_cap_line_count];
 314
 315         p.setPen(HighColor);
 316         paint_caps(p, cap_lines, edges, true, samples_per_pixel,
 317                 pixels_offset, pp.left(), high_offset);
 318         p.setPen(LowColor);
 319         paint_caps(p, cap_lines, edges, false, samples_per_pixel,
 320                 pixels_offset, pp.left(), low_offset);
 321
 322         delete[] cap_lines;
 323
 324         // Paint the sampling points
 325         if (show_sampling_points) {
 326                 p.setPen(SamplingPointColor);
 327                 p.drawRects(sampling_points.data(), sampling_points.size());
 328         }
 329 }
 330
 331 void LogicSignal::paint_fore(QPainter &p, ViewItemPaintParams &pp)
 332 {
 333         if (base_->enabled()) {
 334                 if (trigger_match_) {
 335                         // Draw the trigger marker
 336                         const int y = get_visual_y();
 337
 338                         for (int32_t type_id : trigger_types_) {
 339                                 const TriggerMatchType *const type =
 340                                         TriggerMatchType::get(type_id);
 341                                 if (trigger_match_ != type || type_id < 0 ||
 342                                         (size_t)type_id >= countof(TriggerMarkerIcons) ||
 343                                         !TriggerMarkerIcons[type_id])
 344                                         continue;
 345
 346                                 const QPixmap *const pixmap = get_pixmap(
 347                                         TriggerMarkerIcons[type_id]);
 348                                 if (!pixmap)
 349                                         continue;
 350
 351                                 const float pad = TriggerMarkerPadding - 0.5f;
 352                                 const QSize size = pixmap->size();
 353                                 const QPoint point(
 354                                         pp.right() - size.width() - pad * 2,
 355                                         y - (signal_height_ + size.height()) / 2);
 356
 357                                 p.setPen(QPen(TriggerMarkerBackgroundColor.darker()));
 358                                 p.setBrush(TriggerMarkerBackgroundColor);
 359                                 p.drawRoundedRect(QRectF(point, size).adjusted(
 360                                         -pad, -pad, pad, pad), pad, pad);
 361                                 p.drawPixmap(point, *pixmap);
 362
 363                                 break;
 364                         }
 365                 }
 366
 367                 if (show_hover_marker_)
 368                         paint_hover_marker(p);
 369         }
 370 }
 371
 372 vector<LogicSegment::EdgePair> LogicSignal::get_nearest_level_changes(uint64_t sample_pos)
 373 {
 374         assert(base_);
 375         assert(owner_);
 376
 377         if (sample_pos == 0)
 378                 return vector<LogicSegment::EdgePair>();
 379
 380         shared_ptr<LogicSegment> segment = get_logic_segment_to_paint();
 381         if (!segment || (segment->get_sample_count() == 0))
 382                 return vector<LogicSegment::EdgePair>();
 383
 384         const View *view = owner_->view();
 385         assert(view);
 386         const double samples_per_pixel = base_->get_samplerate() * view->scale();
 387
 388         vector<LogicSegment::EdgePair> edges;
 389
 390         segment->get_surrounding_edges(edges, sample_pos,
 391                 samples_per_pixel / Oversampling, base_->index());
 392
 393         if (edges.empty())
 394                 return vector<LogicSegment::EdgePair>();
 395
 396         return edges;
 397 }
 398
 399 void LogicSignal::paint_caps(QPainter &p, QLineF *const lines,
 400         vector< pair<int64_t, bool> > &edges, bool level,
 401         double samples_per_pixel, double pixels_offset, float x_offset,
 402         float y_offset)
 403 {
 404         QLineF *line = lines;
 405
 406         for (auto i = edges.begin(); i != (edges.end() - 1); i++)
 407                 if ((*i).second == level) {
 408                         *line++ = QLineF(
 409                                 ((*i).first / samples_per_pixel -
 410                                         pixels_offset) + x_offset, y_offset,
 411                                 ((*(i+1)).first / samples_per_pixel -
 412                                         pixels_offset) + x_offset, y_offset);
 413                 }
 414
 415         p.drawLines(lines, line - lines);
 416 }
 417
 418 shared_ptr<pv::data::LogicSegment> LogicSignal::get_logic_segment_to_paint() const
 419 {
 420         shared_ptr<pv::data::LogicSegment> segment;
 421
 422         const deque< shared_ptr<pv::data::LogicSegment> > &segments =
 423                 base_->logic_data()->logic_segments();
 424
 425         if (!segments.empty()) {
 426                 if (segment_display_mode_ == ShowLastSegmentOnly) {
 427                         segment = segments.back();
 428                 }
 429
 430         if ((segment_display_mode_ == ShowSingleSegmentOnly) ||
 431                 (segment_display_mode_ == ShowLastCompleteSegmentOnly)) {
 432                         try {
 433                                 segment = segments.at(current_segment_);
 434                         } catch (out_of_range&) {
 435                                 qDebug() << "Current logic segment out of range for signal" << base_->name() << ":" << current_segment_;
 436                         }
 437                 }
 438         }
 439
 440         return segment;
 441 }
 442
 443 void LogicSignal::init_trigger_actions(QWidget *parent)
 444 {
 445         trigger_none_ = new QAction(*get_icon(":/icons/trigger-none.svg"),
 446                 tr("No trigger"), parent);
 447         trigger_none_->setCheckable(true);
 448         connect(trigger_none_, SIGNAL(triggered()), this, SLOT(on_trigger()));
 449
 450         trigger_rising_ = new QAction(*get_icon(":/icons/trigger-rising.svg"),
 451                 tr("Trigger on rising edge"), parent);
 452         trigger_rising_->setCheckable(true);
 453         connect(trigger_rising_, SIGNAL(triggered()), this, SLOT(on_trigger()));
 454
 455         trigger_high_ = new QAction(*get_icon(":/icons/trigger-high.svg"),
 456                 tr("Trigger on high level"), parent);
 457         trigger_high_->setCheckable(true);
 458         connect(trigger_high_, SIGNAL(triggered()), this, SLOT(on_trigger()));
 459
 460         trigger_falling_ = new QAction(*get_icon(":/icons/trigger-falling.svg"),
 461                 tr("Trigger on falling edge"), parent);
 462         trigger_falling_->setCheckable(true);
 463         connect(trigger_falling_, SIGNAL(triggered()), this, SLOT(on_trigger()));
 464
 465         trigger_low_ = new QAction(*get_icon(":/icons/trigger-low.svg"),
 466                 tr("Trigger on low level"), parent);
 467         trigger_low_->setCheckable(true);
 468         connect(trigger_low_, SIGNAL(triggered()), this, SLOT(on_trigger()));
 469
 470         trigger_change_ = new QAction(*get_icon(":/icons/trigger-change.svg"),
 471                 tr("Trigger on rising or falling edge"), parent);
 472         trigger_change_->setCheckable(true);
 473         connect(trigger_change_, SIGNAL(triggered()), this, SLOT(on_trigger()));
 474 }
 475
 476 const vector<int32_t> LogicSignal::get_trigger_types() const
 477 {
 478         // We may not be associated with a device
 479         if (!device_)
 480                 return vector<int32_t>();
 481
 482         const auto sr_dev = device_->device();
 483         if (sr_dev->config_check(ConfigKey::TRIGGER_MATCH, Capability::LIST)) {
 484                 const Glib::VariantContainerBase gvar =
 485                         sr_dev->config_list(ConfigKey::TRIGGER_MATCH);
 486
 487                 vector<int32_t> ttypes;
 488
 489                 for (unsigned int i = 0; i < gvar.get_n_children(); i++) {
 490                         Glib::VariantBase tmp_vb;
 491                         gvar.get_child(tmp_vb, i);
 492
 493                         Glib::Variant<int32_t> tmp_v =
 494                                 Glib::VariantBase::cast_dynamic< Glib::Variant<int32_t> >(tmp_vb);
 495
 496                         ttypes.push_back(tmp_v.get());
 497                 }
 498
 499                 return ttypes;
 500         } else {
 501                 return vector<int32_t>();
 502         }
 503 }
 504
 505 QAction* LogicSignal::action_from_trigger_type(const TriggerMatchType *type)
 506 {
 507         QAction *action;
 508
 509         action = trigger_none_;
 510         if (type) {
 511                 switch (type->id()) {
 512                 case SR_TRIGGER_ZERO:
 513                         action = trigger_low_;
 514                         break;
 515                 case SR_TRIGGER_ONE:
 516                         action = trigger_high_;
 517                         break;
 518                 case SR_TRIGGER_RISING:
 519                         action = trigger_rising_;
 520                         break;
 521                 case SR_TRIGGER_FALLING:
 522                         action = trigger_falling_;
 523                         break;
 524                 case SR_TRIGGER_EDGE:
 525                         action = trigger_change_;
 526                         break;
 527                 default:
 528                         assert(false);
 529                 }
 530         }
 531
 532         return action;
 533 }
 534
 535 const TriggerMatchType *LogicSignal::trigger_type_from_action(QAction *action)
 536 {
 537         if (action == trigger_low_)
 538                 return TriggerMatchType::ZERO;
 539         else if (action == trigger_high_)
 540                 return TriggerMatchType::ONE;
 541         else if (action == trigger_rising_)
 542                 return TriggerMatchType::RISING;
 543         else if (action == trigger_falling_)
 544                 return TriggerMatchType::FALLING;
 545         else if (action == trigger_change_)
 546                 return TriggerMatchType::EDGE;
 547         else
 548                 return nullptr;
 549 }
 550
 551 void LogicSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
 552 {
 553         Signal::populate_popup_form(parent, form);
 554
 555         signal_height_sb_ = new QSpinBox(parent);
 556         signal_height_sb_->setRange(5, 1000);
 557         signal_height_sb_->setSingleStep(5);
 558         signal_height_sb_->setSuffix(tr(" pixels"));
 559         signal_height_sb_->setValue(signal_height_);
 560         connect(signal_height_sb_, SIGNAL(valueChanged(int)),
 561                 this, SLOT(on_signal_height_changed(int)));
 562         form->addRow(tr("Trace height"), signal_height_sb_);
 563
 564         // Trigger settings
 565         const vector<int32_t> trig_types = get_trigger_types();
 566
 567         if (!trig_types.empty()) {
 568                 trigger_bar_ = new QToolBar(parent);
 569                 init_trigger_actions(trigger_bar_);
 570                 trigger_bar_->addAction(trigger_none_);
 571                 trigger_none_->setChecked(!trigger_match_);
 572
 573                 for (auto type_id : trig_types) {
 574                         const TriggerMatchType *const type =
 575                                 TriggerMatchType::get(type_id);
 576                         QAction *const action = action_from_trigger_type(type);
 577                         trigger_bar_->addAction(action);
 578                         action->setChecked(trigger_match_ == type);
 579                 }
 580
 581                 // Only allow triggers to be changed when we're stopped
 582                 if (session_.get_capture_state() != Session::Stopped)
 583                         for (QAction* action : trigger_bar_->findChildren<QAction*>())  // clazy:exclude=range-loop
 584                                 action->setEnabled(false);
 585
 586                 form->addRow(tr("Trigger"), trigger_bar_);
 587         }
 588 }
 589
 590 void LogicSignal::modify_trigger()
 591 {
 592         auto trigger = session_.session()->trigger();
 593         auto new_trigger = session_.device_manager().context()->create_trigger("pulseview");
 594
 595         if (trigger) {
 596                 for (auto stage : trigger->stages()) {
 597                         const auto &matches = stage->matches();
 598                         if (none_of(matches.begin(), matches.end(),
 599                             [&](shared_ptr<TriggerMatch> match) {
 600                                         return match->channel() != base_->channel(); }))
 601                                 continue;
 602
 603                         auto new_stage = new_trigger->add_stage();
 604                         for (auto match : stage->matches()) {
 605                                 if (match->channel() == base_->channel())
 606                                         continue;
 607                                 new_stage->add_match(match->channel(), match->type());
 608                         }
 609                 }
 610         }
 611
 612         if (trigger_match_) {
 613                 // Until we can let the user decide how to group trigger matches
 614                 // into stages, put all of the matches into a single stage --
 615                 // most devices only support a single trigger stage.
 616                 if (new_trigger->stages().empty())
 617                         new_trigger->add_stage();
 618
 619                 new_trigger->stages().back()->add_match(base_->channel(),
 620                         trigger_match_);
 621         }
 622
 623         session_.session()->set_trigger(
 624                 new_trigger->stages().empty() ? nullptr : new_trigger);
 625
 626         if (owner_)
 627                 owner_->row_item_appearance_changed(false, true);
 628 }
 629
 630 const QIcon* LogicSignal::get_icon(const char *path)
 631 {
 632         if (!icon_cache_.contains(path)) {
 633                 const QIcon *icon = new QIcon(path);
 634                 icon_cache_.insert(path, icon);
 635         }
 636
 637         return icon_cache_.take(path);
 638 }
 639
 640 const QPixmap* LogicSignal::get_pixmap(const char *path)
 641 {
 642         if (!pixmap_cache_.contains(path)) {
 643                 const QPixmap *pixmap = new QPixmap(path);
 644                 pixmap_cache_.insert(path, pixmap);
 645         }
 646
 647         return pixmap_cache_.take(path);
 648 }
 649
 650 void LogicSignal::on_setting_changed(const QString &key, const QVariant &value)
 651 {
 652         Signal::on_setting_changed(key, value);
 653
 654         if (key == GlobalSettings::Key_View_ShowSamplingPoints)
 655                 show_sampling_points_ = value.toBool();
 656
 657         if (key == GlobalSettings::Key_View_FillSignalHighAreas)
 658                 fill_high_areas_ = value.toBool();
 659
 660         if (key == GlobalSettings::Key_View_FillSignalHighAreaColor)
 661                 high_fill_color_ = QColor::fromRgba(value.value<uint32_t>());
 662 }
 663
 664 void LogicSignal::on_trigger()
 665 {
 666         QAction *action;
 667
 668         action_from_trigger_type(trigger_match_)->setChecked(false);
 669
 670         action = (QAction *)sender();
 671         action->setChecked(true);
 672         trigger_match_ = trigger_type_from_action(action);
 673
 674         modify_trigger();
 675 }
 676
 677 void LogicSignal::on_signal_height_changed(int height)
 678 {
 679         signal_height_ = height;
 680
 681         if (owner_) {
 682                 // Call order is important, otherwise the lazy event handler won't work
 683                 owner_->extents_changed(false, true);
 684                 owner_->row_item_appearance_changed(false, true);
 685         }
 686 }
 687
 688 } // namespace trace
 689 } // namespace views
 690 } // namespace pv