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