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