pv/views/trace/decodetrace.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 extern "C" {
  21 #include <libsigrokdecode/libsigrokdecode.h>
  22 }
  23
  24 #include <limits>
  25 #include <mutex>
  26 #include <tuple>
  27
  28 #include <extdef.h>
  29
  30 #include <boost/functional/hash.hpp>
  31
  32 #include <QAction>
  33 #include <QApplication>
  34 #include <QClipboard>
  35 #include <QComboBox>
  36 #include <QFileDialog>
  37 #include <QFormLayout>
  38 #include <QLabel>
  39 #include <QMenu>
  40 #include <QMessageBox>
  41 #include <QPushButton>
  42 #include <QTextStream>
  43 #include <QToolTip>
  44
  45 #include "decodetrace.hpp"
  46 #include "view.hpp"
  47 #include "viewport.hpp"
  48
  49 #include <pv/globalsettings.hpp>
  50 #include <pv/session.hpp>
  51 #include <pv/strnatcmp.hpp>
  52 #include <pv/data/decodesignal.hpp>
  53 #include <pv/data/decode/annotation.hpp>
  54 #include <pv/data/decode/decoder.hpp>
  55 #include <pv/data/logic.hpp>
  56 #include <pv/data/logicsegment.hpp>
  57 #include <pv/widgets/decodergroupbox.hpp>
  58 #include <pv/widgets/decodermenu.hpp>
  59
  60 using std::abs;
  61 using std::make_pair;
  62 using std::max;
  63 using std::min;
  64 using std::numeric_limits;
  65 using std::out_of_range;
  66 using std::pair;
  67 using std::shared_ptr;
  68 using std::tie;
  69 using std::vector;
  70
  71 using pv::data::decode::Annotation;
  72 using pv::data::decode::Row;
  73 using pv::data::DecodeChannel;
  74 using pv::data::DecodeSignal;
  75
  76 namespace pv {
  77 namespace views {
  78 namespace trace {
  79
  80
  81 #define DECODETRACE_COLOR_SATURATION (180) /* 0-255 */
  82 #define DECODETRACE_COLOR_VALUE (170) /* 0-255 */
  83
  84 const QColor DecodeTrace::ErrorBgColor = QColor(0xEF, 0x29, 0x29);
  85 const QColor DecodeTrace::NoDecodeColor = QColor(0x88, 0x8A, 0x85);
  86
  87 const int DecodeTrace::ArrowSize = 4;
  88 const double DecodeTrace::EndCapWidth = 5;
  89 const int DecodeTrace::RowTitleMargin = 10;
  90 const int DecodeTrace::DrawPadding = 100;
  91
  92 const int DecodeTrace::MaxTraceUpdateRate = 1; // No more than 1 Hz
  93
  94 DecodeTrace::DecodeTrace(pv::Session &session,
  95         shared_ptr<data::SignalBase> signalbase, int index) :
  96         Trace(signalbase),
  97         session_(session),
  98         row_height_(0),
  99         max_visible_rows_(0),
 100         delete_mapper_(this),
 101         show_hide_mapper_(this)
 102 {
 103         decode_signal_ = dynamic_pointer_cast<data::DecodeSignal>(base_);
 104
 105         // Determine shortest string we want to see displayed in full
 106         QFontMetrics m(QApplication::font());
 107         min_useful_label_width_ = m.width("XX"); // e.g. two hex characters
 108
 109         // For the base color, we want to start at a very different color for
 110         // every decoder stack, so multiply the index with a number that is
 111         // rather close to 180 degrees of the color circle but not a dividend of 360
 112         // Note: The offset equals the color of the first annotation
 113         QColor color;
 114         const int h = (120 + 160 * index) % 360;
 115         const int s = DECODETRACE_COLOR_SATURATION;
 116         const int v = DECODETRACE_COLOR_VALUE;
 117         color.setHsv(h, s, v);
 118         base_->set_color(color);
 119
 120         connect(decode_signal_.get(), SIGNAL(new_annotations()),
 121                 this, SLOT(on_new_annotations()));
 122         connect(decode_signal_.get(), SIGNAL(decode_reset()),
 123                 this, SLOT(on_decode_reset()));
 124         connect(decode_signal_.get(), SIGNAL(decode_finished()),
 125                 this, SLOT(on_decode_finished()));
 126         connect(decode_signal_.get(), SIGNAL(channels_updated()),
 127                 this, SLOT(on_channels_updated()));
 128
 129         connect(&delete_mapper_, SIGNAL(mapped(int)),
 130                 this, SLOT(on_delete_decoder(int)));
 131         connect(&show_hide_mapper_, SIGNAL(mapped(int)),
 132                 this, SLOT(on_show_hide_decoder(int)));
 133
 134         connect(&delayed_trace_updater_, SIGNAL(timeout()),
 135                 this, SLOT(on_delayed_trace_update()));
 136         delayed_trace_updater_.setSingleShot(true);
 137         delayed_trace_updater_.setInterval(1000 / MaxTraceUpdateRate);
 138 }
 139
 140 bool DecodeTrace::enabled() const
 141 {
 142         return true;
 143 }
 144
 145 shared_ptr<data::SignalBase> DecodeTrace::base() const
 146 {
 147         return base_;
 148 }
 149
 150 pair<int, int> DecodeTrace::v_extents() const
 151 {
 152         const int row_height = (ViewItemPaintParams::text_height() * 6) / 4;
 153
 154         // Make an empty decode trace appear symmetrical
 155         const int row_count = max(1, max_visible_rows_);
 156
 157         return make_pair(-row_height, row_height * row_count);
 158 }
 159
 160 void DecodeTrace::paint_back(QPainter &p, ViewItemPaintParams &pp)
 161 {
 162         Trace::paint_back(p, pp);
 163         paint_axis(p, pp, get_visual_y());
 164 }
 165
 166 void DecodeTrace::paint_mid(QPainter &p, ViewItemPaintParams &pp)
 167 {
 168         const int text_height = ViewItemPaintParams::text_height();
 169         row_height_ = (text_height * 6) / 4;
 170         const int annotation_height = (text_height * 5) / 4;
 171
 172         // Set default pen to allow for text width calculation
 173         p.setPen(Qt::black);
 174
 175         // Iterate through the rows
 176         int y = get_visual_y();
 177         pair<uint64_t, uint64_t> sample_range = get_view_sample_range(pp.left(), pp.right());
 178
 179         // Just because the view says we see a certain sample range it
 180         // doesn't mean we have this many decoded samples, too, so crop
 181         // the range to what has been decoded already
 182         sample_range.second = min((int64_t)sample_range.second,
 183                 decode_signal_->get_decoded_sample_count(current_segment_, false));
 184
 185         const vector<Row> rows = decode_signal_->visible_rows();
 186
 187         visible_rows_.clear();
 188         for (const Row& row : rows) {
 189                 // Cache the row title widths
 190                 int row_title_width;
 191                 try {
 192                         row_title_width = row_title_widths_.at(row);
 193                 } catch (out_of_range&) {
 194                         const int w = p.boundingRect(QRectF(), 0, row.title()).width() +
 195                                 RowTitleMargin;
 196                         row_title_widths_[row] = w;
 197                         row_title_width = w;
 198                 }
 199
 200                 vector<Annotation> annotations;
 201                 decode_signal_->get_annotation_subset(annotations, row,
 202                         current_segment_, sample_range.first, sample_range.second);
 203                 if (!annotations.empty()) {
 204                         draw_annotations(annotations, p, annotation_height, pp, y,
 205                                 get_row_color(row.index()), row_title_width);
 206                         y += row_height_;
 207                         visible_rows_.push_back(row);
 208                 }
 209         }
 210
 211         draw_unresolved_period(p, annotation_height, pp.left(), pp.right());
 212
 213         if ((int)visible_rows_.size() > max_visible_rows_) {
 214                 max_visible_rows_ = (int)visible_rows_.size();
 215
 216                 // Call order is important, otherwise the lazy event handler won't work
 217                 owner_->extents_changed(false, true);
 218                 owner_->row_item_appearance_changed(false, true);
 219         }
 220
 221         const QString err = decode_signal_->error_message();
 222         if (!err.isEmpty())
 223                 draw_error(p, err, pp);
 224 }
 225
 226 void DecodeTrace::paint_fore(QPainter &p, ViewItemPaintParams &pp)
 227 {
 228         assert(row_height_);
 229
 230         for (size_t i = 0; i < visible_rows_.size(); i++) {
 231                 const int y = i * row_height_ + get_visual_y();
 232
 233                 p.setPen(QPen(Qt::NoPen));
 234                 p.setBrush(QApplication::palette().brush(QPalette::WindowText));
 235
 236                 if (i != 0) {
 237                         const QPointF points[] = {
 238                                 QPointF(pp.left(), y - ArrowSize),
 239                                 QPointF(pp.left() + ArrowSize, y),
 240                                 QPointF(pp.left(), y + ArrowSize)
 241                         };
 242                         p.drawPolygon(points, countof(points));
 243                 }
 244
 245                 const QRect r(pp.left() + ArrowSize * 2, y - row_height_ / 2,
 246                         pp.right() - pp.left(), row_height_);
 247                 const QString h(visible_rows_[i].title());
 248                 const int f = Qt::AlignLeft | Qt::AlignVCenter |
 249                         Qt::TextDontClip;
 250
 251                 // Draw the outline
 252                 p.setPen(QApplication::palette().color(QPalette::Base));
 253                 for (int dx = -1; dx <= 1; dx++)
 254                         for (int dy = -1; dy <= 1; dy++)
 255                                 if (dx != 0 && dy != 0)
 256                                         p.drawText(r.translated(dx, dy), f, h);
 257
 258                 // Draw the text
 259                 p.setPen(QApplication::palette().color(QPalette::WindowText));
 260                 p.drawText(r, f, h);
 261         }
 262
 263         if (show_hover_marker_)
 264                 paint_hover_marker(p);
 265 }
 266
 267 void DecodeTrace::update_stack_button()
 268 {
 269         const vector< shared_ptr<data::decode::Decoder> > &stack = decode_signal_->decoder_stack();
 270
 271         // Only show decoders in the menu that can be stacked onto the last one in the stack
 272         if (!stack.empty()) {
 273                 const srd_decoder* d = stack.back()->decoder();
 274
 275                 if (d->outputs) {
 276                         pv::widgets::DecoderMenu *const decoder_menu =
 277                                 new pv::widgets::DecoderMenu(stack_button_, (const char*)(d->outputs->data));
 278                         connect(decoder_menu, SIGNAL(decoder_selected(srd_decoder*)),
 279                                 this, SLOT(on_stack_decoder(srd_decoder*)));
 280
 281                         stack_button_->setMenu(decoder_menu);
 282                         stack_button_->show();
 283                         return;
 284                 }
 285         }
 286
 287         // No decoders available for stacking
 288         stack_button_->setMenu(nullptr);
 289         stack_button_->hide();
 290 }
 291
 292 void DecodeTrace::populate_popup_form(QWidget *parent, QFormLayout *form)
 293 {
 294         using pv::data::decode::Decoder;
 295
 296         assert(form);
 297
 298         // Add the standard options
 299         Trace::populate_popup_form(parent, form);
 300
 301         // Add the decoder options
 302         bindings_.clear();
 303         channel_id_map_.clear();
 304         init_state_map_.clear();
 305         decoder_forms_.clear();
 306
 307         const vector< shared_ptr<Decoder> > &stack = decode_signal_->decoder_stack();
 308
 309         if (stack.empty()) {
 310                 QLabel *const l = new QLabel(
 311                         tr("<p><i>No decoders in the stack</i></p>"));
 312                 l->setAlignment(Qt::AlignCenter);
 313                 form->addRow(l);
 314         } else {
 315                 auto iter = stack.cbegin();
 316                 for (int i = 0; i < (int)stack.size(); i++, iter++) {
 317                         shared_ptr<Decoder> dec(*iter);
 318                         create_decoder_form(i, dec, parent, form);
 319                 }
 320
 321                 form->addRow(new QLabel(
 322                         tr("<i>* Required channels</i>"), parent));
 323         }
 324
 325         // Add stacking button
 326         stack_button_ = new QPushButton(tr("Stack Decoder"), parent);
 327         stack_button_->setToolTip(tr("Stack a higher-level decoder on top of this one"));
 328         update_stack_button();
 329
 330         QHBoxLayout *stack_button_box = new QHBoxLayout;
 331         stack_button_box->addWidget(stack_button_, 0, Qt::AlignRight);
 332         form->addRow(stack_button_box);
 333 }
 334
 335 QMenu* DecodeTrace::create_header_context_menu(QWidget *parent)
 336 {
 337         QMenu *const menu = Trace::create_header_context_menu(parent);
 338
 339         menu->addSeparator();
 340
 341         QAction *const del = new QAction(tr("Delete"), this);
 342         del->setShortcuts(QKeySequence::Delete);
 343         connect(del, SIGNAL(triggered()), this, SLOT(on_delete()));
 344         menu->addAction(del);
 345
 346         return menu;
 347 }
 348
 349 QMenu* DecodeTrace::create_view_context_menu(QWidget *parent, QPoint &click_pos)
 350 {
 351         // Get entries from default menu before adding our own
 352         QMenu *const menu = new QMenu(parent);
 353
 354         QMenu* default_menu = Trace::create_view_context_menu(parent, click_pos);
 355         if (default_menu) {
 356                 for (QAction *action : default_menu->actions()) {  // clazy:exclude=range-loop
 357                         menu->addAction(action);
 358                         if (action->parent() == default_menu)
 359                                 action->setParent(menu);
 360                 }
 361                 delete default_menu;
 362
 363                 // Add separator if needed
 364                 if (menu->actions().length() > 0)
 365                         menu->addSeparator();
 366         }
 367
 368         try {
 369                 selected_row_ = &visible_rows_[get_row_at_point(click_pos)];
 370         } catch (out_of_range&) {
 371                 selected_row_ = nullptr;
 372         }
 373
 374         const View *const view = owner_->view();
 375         assert(view);
 376         QPoint pos = view->viewport()->mapFrom(parent, click_pos);
 377
 378         // Default sample range is "from here"
 379         const pair<uint64_t, uint64_t> sample_range = get_view_sample_range(pos.x(), pos.x() + 1);
 380         selected_sample_range_ = make_pair(sample_range.first, numeric_limits<uint64_t>::max());
 381
 382         if (decode_signal_->is_paused()) {
 383                 QAction *const resume =
 384                         new QAction(tr("Resume decoding"), this);
 385                 resume->setIcon(QIcon::fromTheme("media-playback-start",
 386                         QIcon(":/icons/media-playback-start.png")));
 387                 connect(resume, SIGNAL(triggered()), this, SLOT(on_pause_decode()));
 388                 menu->addAction(resume);
 389         } else {
 390                 QAction *const pause =
 391                         new QAction(tr("Pause decoding"), this);
 392                 pause->setIcon(QIcon::fromTheme("media-playback-pause",
 393                         QIcon(":/icons/media-playback-pause.png")));
 394                 connect(pause, SIGNAL(triggered()), this, SLOT(on_pause_decode()));
 395                 menu->addAction(pause);
 396         }
 397
 398         QAction *const copy_annotation_to_clipboard =
 399                 new QAction(tr("Copy annotation text to clipboard"), this);
 400         copy_annotation_to_clipboard->setIcon(QIcon::fromTheme("edit-paste",
 401                 QIcon(":/icons/edit-paste.png")));
 402         connect(copy_annotation_to_clipboard, SIGNAL(triggered()), this, SLOT(on_copy_annotation_to_clipboard()));
 403         menu->addAction(copy_annotation_to_clipboard);
 404
 405         menu->addSeparator();
 406
 407         QAction *const export_all_rows =
 408                 new QAction(tr("Export all annotations"), this);
 409         export_all_rows->setIcon(QIcon::fromTheme("document-save-as",
 410                 QIcon(":/icons/document-save-as.png")));
 411         connect(export_all_rows, SIGNAL(triggered()), this, SLOT(on_export_all_rows()));
 412         menu->addAction(export_all_rows);
 413
 414         QAction *const export_row =
 415                 new QAction(tr("Export all annotations for this row"), this);
 416         export_row->setIcon(QIcon::fromTheme("document-save-as",
 417                 QIcon(":/icons/document-save-as.png")));
 418         connect(export_row, SIGNAL(triggered()), this, SLOT(on_export_row()));
 419         menu->addAction(export_row);
 420
 421         menu->addSeparator();
 422
 423         QAction *const export_all_rows_from_here =
 424                 new QAction(tr("Export all annotations, starting here"), this);
 425         export_all_rows_from_here->setIcon(QIcon::fromTheme("document-save-as",
 426                 QIcon(":/icons/document-save-as.png")));
 427         connect(export_all_rows_from_here, SIGNAL(triggered()), this, SLOT(on_export_all_rows_from_here()));
 428         menu->addAction(export_all_rows_from_here);
 429
 430         QAction *const export_row_from_here =
 431                 new QAction(tr("Export annotations for this row, starting here"), this);
 432         export_row_from_here->setIcon(QIcon::fromTheme("document-save-as",
 433                 QIcon(":/icons/document-save-as.png")));
 434         connect(export_row_from_here, SIGNAL(triggered()), this, SLOT(on_export_row_from_here()));
 435         menu->addAction(export_row_from_here);
 436
 437         menu->addSeparator();
 438
 439         QAction *const export_all_rows_with_cursor =
 440                 new QAction(tr("Export all annotations within cursor range"), this);
 441         export_all_rows_with_cursor->setIcon(QIcon::fromTheme("document-save-as",
 442                 QIcon(":/icons/document-save-as.png")));
 443         connect(export_all_rows_with_cursor, SIGNAL(triggered()), this, SLOT(on_export_all_rows_with_cursor()));
 444         menu->addAction(export_all_rows_with_cursor);
 445
 446         QAction *const export_row_with_cursor =
 447                 new QAction(tr("Export annotations for this row within cursor range"), this);
 448         export_row_with_cursor->setIcon(QIcon::fromTheme("document-save-as",
 449                 QIcon(":/icons/document-save-as.png")));
 450         connect(export_row_with_cursor, SIGNAL(triggered()), this, SLOT(on_export_row_with_cursor()));
 451         menu->addAction(export_row_with_cursor);
 452
 453         if (!view->cursors()->enabled()) {
 454                 export_all_rows_with_cursor->setEnabled(false);
 455                 export_row_with_cursor->setEnabled(false);
 456         }
 457
 458         return menu;
 459 }
 460
 461 void DecodeTrace::draw_annotations(vector<pv::data::decode::Annotation> annotations,
 462                 QPainter &p, int h, const ViewItemPaintParams &pp, int y,
 463                 QColor row_color, int row_title_width)
 464 {
 465         using namespace pv::data::decode;
 466
 467         Annotation::Class block_class = 0;
 468         bool block_class_uniform = true;
 469         qreal block_start = 0;
 470         int block_ann_count = 0;
 471
 472         const Annotation *prev_ann;
 473         qreal prev_end = INT_MIN;
 474
 475         qreal a_end;
 476
 477         double samples_per_pixel, pixels_offset;
 478         tie(pixels_offset, samples_per_pixel) =
 479                 get_pixels_offset_samples_per_pixel();
 480
 481         // Sort the annotations by start sample so that decoders
 482         // can't confuse us by creating annotations out of order
 483         stable_sort(annotations.begin(), annotations.end(),
 484                 [](const Annotation &a, const Annotation &b) {
 485                         return a.start_sample() < b.start_sample(); });
 486
 487         // Gather all annotations that form a visual "block" and draw them as such
 488         for (const Annotation &a : annotations) {
 489
 490                 const qreal abs_a_start = a.start_sample() / samples_per_pixel;
 491                 const qreal abs_a_end   = a.end_sample() / samples_per_pixel;
 492
 493                 const qreal a_start = abs_a_start - pixels_offset;
 494                 a_end = abs_a_end - pixels_offset;
 495
 496                 const qreal a_width = a_end - a_start;
 497                 const qreal delta = a_end - prev_end;
 498
 499                 bool a_is_separate = false;
 500
 501                 // Annotation wider than the threshold for a useful label width?
 502                 if (a_width >= min_useful_label_width_) {
 503                         for (const QString &ann_text : a.annotations()) {
 504                                 const qreal w = p.boundingRect(QRectF(), 0, ann_text).width();
 505                                 // Annotation wide enough to fit a label? Don't put it in a block then
 506                                 if (w <= a_width) {
 507                                         a_is_separate = true;
 508                                         break;
 509                                 }
 510                         }
 511                 }
 512
 513                 // Were the previous and this annotation more than a pixel apart?
 514                 if ((abs(delta) > 1) || a_is_separate) {
 515                         // Block was broken, draw annotations that form the current block
 516                         if (block_ann_count == 1)
 517                                 draw_annotation(*prev_ann, p, h, pp, y, row_color,
 518                                         row_title_width);
 519                         else if (block_ann_count > 0)
 520                                 draw_annotation_block(block_start, prev_end, block_class,
 521                                         block_class_uniform, p, h, y, row_color);
 522
 523                         block_ann_count = 0;
 524                 }
 525
 526                 if (a_is_separate) {
 527                         draw_annotation(a, p, h, pp, y, row_color, row_title_width);
 528                         // Next annotation must start a new block. delta will be > 1
 529                         // because we set prev_end to INT_MIN but that's okay since
 530                         // block_ann_count will be 0 and nothing will be drawn
 531                         prev_end = INT_MIN;
 532                         block_ann_count = 0;
 533                 } else {
 534                         prev_end = a_end;
 535                         prev_ann = &a;
 536
 537                         if (block_ann_count == 0) {
 538                                 block_start = a_start;
 539                                 block_class = a.ann_class();
 540                                 block_class_uniform = true;
 541                         } else
 542                                 if (a.ann_class() != block_class)
 543                                         block_class_uniform = false;
 544
 545                         block_ann_count++;
 546                 }
 547         }
 548
 549         if (block_ann_count == 1)
 550                 draw_annotation(*prev_ann, p, h, pp, y, row_color, row_title_width);
 551         else if (block_ann_count > 0)
 552                 draw_annotation_block(block_start, prev_end, block_class,
 553                         block_class_uniform, p, h, y, row_color);
 554 }
 555
 556 void DecodeTrace::draw_annotation(const pv::data::decode::Annotation &a,
 557         QPainter &p, int h, const ViewItemPaintParams &pp, int y,
 558         QColor row_color, int row_title_width) const
 559 {
 560         double samples_per_pixel, pixels_offset;
 561         tie(pixels_offset, samples_per_pixel) =
 562                 get_pixels_offset_samples_per_pixel();
 563
 564         const double start = a.start_sample() / samples_per_pixel -
 565                 pixels_offset;
 566         const double end = a.end_sample() / samples_per_pixel - pixels_offset;
 567
 568         QColor color = get_annotation_color(row_color, a.ann_class());
 569         p.setPen(color.darker());
 570         p.setBrush(color);
 571
 572         if (start > pp.right() + DrawPadding || end < pp.left() - DrawPadding)
 573                 return;
 574
 575         if (a.start_sample() == a.end_sample())
 576                 draw_instant(a, p, h, start, y);
 577         else
 578                 draw_range(a, p, h, start, end, y, pp, row_title_width);
 579 }
 580
 581 void DecodeTrace::draw_annotation_block(qreal start, qreal end,
 582         Annotation::Class ann_class, bool use_ann_format, QPainter &p, int h,
 583         int y, QColor row_color) const
 584 {
 585         const double top = y + .5 - h / 2;
 586         const double bottom = y + .5 + h / 2;
 587
 588         const QRectF rect(start, top, end - start, bottom - top);
 589         const int r = h / 4;
 590
 591         p.setPen(QPen(Qt::NoPen));
 592         p.setBrush(Qt::white);
 593         p.drawRoundedRect(rect, r, r);
 594
 595         // If all annotations in this block are of the same type, we can use the
 596         // one format that all of these annotations have. Otherwise, we should use
 597         // a neutral color (i.e. gray)
 598         if (use_ann_format) {
 599                 const QColor color = get_annotation_color(row_color, ann_class);
 600                 p.setPen(color.darker());
 601                 p.setBrush(QBrush(color, Qt::Dense4Pattern));
 602         } else {
 603                 p.setPen(Qt::gray);
 604                 p.setBrush(QBrush(Qt::gray, Qt::Dense4Pattern));
 605         }
 606
 607         p.drawRoundedRect(rect, r, r);
 608 }
 609
 610 void DecodeTrace::draw_instant(const pv::data::decode::Annotation &a, QPainter &p,
 611         int h, qreal x, int y) const
 612 {
 613         const QString text = a.annotations().empty() ?
 614                 QString() : a.annotations().back();
 615         const qreal w = min((qreal)p.boundingRect(QRectF(), 0, text).width(),
 616                 0.0) + h;
 617         const QRectF rect(x - w / 2, y - h / 2, w, h);
 618
 619         p.drawRoundedRect(rect, h / 2, h / 2);
 620
 621         p.setPen(Qt::black);
 622         p.drawText(rect, Qt::AlignCenter | Qt::AlignVCenter, text);
 623 }
 624
 625 void DecodeTrace::draw_range(const pv::data::decode::Annotation &a, QPainter &p,
 626         int h, qreal start, qreal end, int y, const ViewItemPaintParams &pp,
 627         int row_title_width) const
 628 {
 629         const qreal top = y + .5 - h / 2;
 630         const qreal bottom = y + .5 + h / 2;
 631         const vector<QString> annotations = a.annotations();
 632
 633         // If the two ends are within 1 pixel, draw a vertical line
 634         if (start + 1.0 > end) {
 635                 p.drawLine(QPointF(start, top), QPointF(start, bottom));
 636                 return;
 637         }
 638
 639         const qreal cap_width = min((end - start) / 4, EndCapWidth);
 640
 641         QPointF pts[] = {
 642                 QPointF(start, y + .5f),
 643                 QPointF(start + cap_width, top),
 644                 QPointF(end - cap_width, top),
 645                 QPointF(end, y + .5f),
 646                 QPointF(end - cap_width, bottom),
 647                 QPointF(start + cap_width, bottom)
 648         };
 649
 650         p.drawConvexPolygon(pts, countof(pts));
 651
 652         if (annotations.empty())
 653                 return;
 654
 655         const int ann_start = start + cap_width;
 656         const int ann_end = end - cap_width;
 657
 658         const int real_start = max(ann_start, pp.left() + row_title_width);
 659         const int real_end = min(ann_end, pp.right());
 660         const int real_width = real_end - real_start;
 661
 662         QRectF rect(real_start, y - h / 2, real_width, h);
 663         if (rect.width() <= 4)
 664                 return;
 665
 666         p.setPen(Qt::black);
 667
 668         // Try to find an annotation that will fit
 669         QString best_annotation;
 670         int best_width = 0;
 671
 672         for (const QString &a : annotations) {
 673                 const int w = p.boundingRect(QRectF(), 0, a).width();
 674                 if (w <= rect.width() && w > best_width)
 675                         best_annotation = a, best_width = w;
 676         }
 677
 678         if (best_annotation.isEmpty())
 679                 best_annotation = annotations.back();
 680
 681         // If not ellide the last in the list
 682         p.drawText(rect, Qt::AlignCenter, p.fontMetrics().elidedText(
 683                 best_annotation, Qt::ElideRight, rect.width()));
 684 }
 685
 686 void DecodeTrace::draw_error(QPainter &p, const QString &message,
 687         const ViewItemPaintParams &pp)
 688 {
 689         const int y = get_visual_y();
 690
 691         double samples_per_pixel, pixels_offset;
 692         tie(pixels_offset, samples_per_pixel) = get_pixels_offset_samples_per_pixel();
 693
 694         p.setPen(ErrorBgColor.darker());
 695         p.setBrush(ErrorBgColor);
 696
 697         const QRectF bounding_rect = QRectF(pp.left(), INT_MIN / 2 + y, pp.right(), INT_MAX);
 698
 699         const QRectF text_rect = p.boundingRect(bounding_rect, Qt::AlignCenter, message);
 700         const qreal r = text_rect.height() / 4;
 701
 702         p.drawRoundedRect(text_rect.adjusted(-r, -r, r, r), r, r, Qt::AbsoluteSize);
 703
 704         p.setPen(Qt::black);
 705         p.drawText(text_rect, message);
 706 }
 707
 708 void DecodeTrace::draw_unresolved_period(QPainter &p, int h, int left, int right) const
 709 {
 710         using namespace pv::data;
 711         using pv::data::decode::Decoder;
 712
 713         double samples_per_pixel, pixels_offset;
 714
 715         const int64_t sample_count = decode_signal_->get_working_sample_count(current_segment_);
 716         if (sample_count == 0)
 717                 return;
 718
 719         const int64_t samples_decoded = decode_signal_->get_decoded_sample_count(current_segment_, true);
 720         if (sample_count == samples_decoded)
 721                 return;
 722
 723         const int y = get_visual_y();
 724
 725         tie(pixels_offset, samples_per_pixel) = get_pixels_offset_samples_per_pixel();
 726
 727         const double start = max(samples_decoded /
 728                 samples_per_pixel - pixels_offset, left - 1.0);
 729         const double end = min(sample_count / samples_per_pixel -
 730                 pixels_offset, right + 1.0);
 731         const QRectF no_decode_rect(start, y - (h / 2) - 0.5, end - start, h);
 732
 733         p.setPen(QPen(Qt::NoPen));
 734         p.setBrush(Qt::white);
 735         p.drawRect(no_decode_rect);
 736
 737         p.setPen(NoDecodeColor);
 738         p.setBrush(QBrush(NoDecodeColor, Qt::Dense6Pattern));
 739         p.drawRect(no_decode_rect);
 740 }
 741
 742 pair<double, double> DecodeTrace::get_pixels_offset_samples_per_pixel() const
 743 {
 744         assert(owner_);
 745
 746         const View *view = owner_->view();
 747         assert(view);
 748
 749         const double scale = view->scale();
 750         assert(scale > 0);
 751
 752         const double pixels_offset =
 753                 ((view->offset() - decode_signal_->start_time()) / scale).convert_to<double>();
 754
 755         double samplerate = decode_signal_->samplerate();
 756
 757         // Show sample rate as 1Hz when it is unknown
 758         if (samplerate == 0.0)
 759                 samplerate = 1.0;
 760
 761         return make_pair(pixels_offset, samplerate * scale);
 762 }
 763
 764 pair<uint64_t, uint64_t> DecodeTrace::get_view_sample_range(
 765         int x_start, int x_end) const
 766 {
 767         double samples_per_pixel, pixels_offset;
 768         tie(pixels_offset, samples_per_pixel) =
 769                 get_pixels_offset_samples_per_pixel();
 770
 771         const uint64_t start = (uint64_t)max(
 772                 (x_start + pixels_offset) * samples_per_pixel, 0.0);
 773         const uint64_t end = (uint64_t)max(
 774                 (x_end + pixels_offset) * samples_per_pixel, 0.0);
 775
 776         return make_pair(start, end);
 777 }
 778
 779 QColor DecodeTrace::get_row_color(int row_index) const
 780 {
 781         // For each row color, use the base color hue and add an offset that's
 782         // not a dividend of 360
 783
 784         QColor color;
 785         const int h = (base_->color().toHsv().hue() + 20 * row_index) % 360;
 786         const int s = DECODETRACE_COLOR_SATURATION;
 787         const int v = DECODETRACE_COLOR_VALUE;
 788         color.setHsl(h, s, v);
 789
 790         return color;
 791 }
 792
 793 QColor DecodeTrace::get_annotation_color(QColor row_color, int annotation_index) const
 794 {
 795         // For each row color, use the base color hue and add an offset that's
 796         // not a dividend of 360 and not a multiple of the row offset
 797
 798         QColor color(row_color);
 799         const int h = (color.toHsv().hue() + 55 * annotation_index) % 360;
 800         const int s = DECODETRACE_COLOR_SATURATION;
 801         const int v = DECODETRACE_COLOR_VALUE;
 802         color.setHsl(h, s, v);
 803
 804         return color;
 805 }
 806
 807 int DecodeTrace::get_row_at_point(const QPoint &point)
 808 {
 809         if (!row_height_)
 810                 return -1;
 811
 812         const int y = (point.y() - get_visual_y() + row_height_ / 2);
 813
 814         /* Integer divison of (x-1)/x would yield 0, so we check for this. */
 815         if (y < 0)
 816                 return -1;
 817
 818         const int row = y / row_height_;
 819
 820         if (row >= (int)visible_rows_.size())
 821                 return -1;
 822
 823         return row;
 824 }
 825
 826 const QString DecodeTrace::get_annotation_at_point(const QPoint &point)
 827 {
 828         using namespace pv::data::decode;
 829
 830         if (!enabled())
 831                 return QString();
 832
 833         const pair<uint64_t, uint64_t> sample_range =
 834                 get_view_sample_range(point.x(), point.x() + 1);
 835         const int row = get_row_at_point(point);
 836         if (row < 0)
 837                 return QString();
 838
 839         vector<Annotation> annotations;
 840
 841         decode_signal_->get_annotation_subset(annotations, visible_rows_[row],
 842                 current_segment_, sample_range.first, sample_range.second);
 843
 844         return (annotations.empty()) ?
 845                 QString() : annotations[0].annotations().front();
 846 }
 847
 848 void DecodeTrace::hover_point_changed(const QPoint &hp)
 849 {
 850         Trace::hover_point_changed(hp);
 851
 852         assert(owner_);
 853
 854         const View *const view = owner_->view();
 855         assert(view);
 856
 857         if (hp.x() == 0) {
 858                 QToolTip::hideText();
 859                 return;
 860         }
 861
 862         QString ann = get_annotation_at_point(hp);
 863
 864         if (!row_height_ || ann.isEmpty()) {
 865                 QToolTip::hideText();
 866                 return;
 867         }
 868
 869         const int hover_row = get_row_at_point(hp);
 870
 871         QFontMetrics m(QToolTip::font());
 872         const QRect text_size = m.boundingRect(QRect(), 0, ann);
 873
 874         // This is OS-specific and unfortunately we can't query it, so
 875         // use an approximation to at least try to minimize the error.
 876         const int padding = 8;
 877
 878         // Make sure the tool tip doesn't overlap with the mouse cursor.
 879         // If it did, the tool tip would constantly hide and re-appear.
 880         // We also push it up by one row so that it appears above the
 881         // decode trace, not below.
 882         QPoint p = hp;
 883         p.setX(hp.x() - (text_size.width() / 2) - padding);
 884
 885         p.setY(get_visual_y() - (row_height_ / 2) +
 886                 (hover_row * row_height_) -
 887                 row_height_ - text_size.height() - padding);
 888
 889         QToolTip::showText(view->viewport()->mapToGlobal(p), ann);
 890 }
 891
 892 void DecodeTrace::create_decoder_form(int index,
 893         shared_ptr<data::decode::Decoder> &dec, QWidget *parent,
 894         QFormLayout *form)
 895 {
 896         GlobalSettings settings;
 897
 898         assert(dec);
 899         const srd_decoder *const decoder = dec->decoder();
 900         assert(decoder);
 901
 902         const bool decoder_deletable = index > 0;
 903
 904         pv::widgets::DecoderGroupBox *const group =
 905                 new pv::widgets::DecoderGroupBox(
 906                         QString::fromUtf8(decoder->name),
 907                         tr("%1:\n%2").arg(QString::fromUtf8(decoder->longname),
 908                                 QString::fromUtf8(decoder->desc)),
 909                         nullptr, decoder_deletable);
 910         group->set_decoder_visible(dec->shown());
 911
 912         if (decoder_deletable) {
 913                 delete_mapper_.setMapping(group, index);
 914                 connect(group, SIGNAL(delete_decoder()), &delete_mapper_, SLOT(map()));
 915         }
 916
 917         show_hide_mapper_.setMapping(group, index);
 918         connect(group, SIGNAL(show_hide_decoder()),
 919                 &show_hide_mapper_, SLOT(map()));
 920
 921         QFormLayout *const decoder_form = new QFormLayout;
 922         group->add_layout(decoder_form);
 923
 924         const vector<DecodeChannel> channels = decode_signal_->get_channels();
 925
 926         // Add the channels
 927         for (const DecodeChannel& ch : channels) {
 928                 // Ignore channels not part of the decoder we create the form for
 929                 if (ch.decoder_ != dec)
 930                         continue;
 931
 932                 QComboBox *const combo = create_channel_selector(parent, &ch);
 933                 QComboBox *const combo_init_state = create_channel_selector_init_state(parent, &ch);
 934
 935                 channel_id_map_[combo] = ch.id;
 936                 init_state_map_[combo_init_state] = ch.id;
 937
 938                 connect(combo, SIGNAL(currentIndexChanged(int)),
 939                         this, SLOT(on_channel_selected(int)));
 940                 connect(combo_init_state, SIGNAL(currentIndexChanged(int)),
 941                         this, SLOT(on_init_state_changed(int)));
 942
 943                 QHBoxLayout *const hlayout = new QHBoxLayout;
 944                 hlayout->addWidget(combo);
 945                 hlayout->addWidget(combo_init_state);
 946
 947                 if (!settings.value(GlobalSettings::Key_Dec_InitialStateConfigurable).toBool())
 948                         combo_init_state->hide();
 949
 950                 const QString required_flag = ch.is_optional ? QString() : QString("*");
 951                 decoder_form->addRow(tr("<b>%1</b> (%2) %3")
 952                         .arg(ch.name, ch.desc, required_flag), hlayout);
 953         }
 954
 955         // Add the options
 956         shared_ptr<binding::Decoder> binding(
 957                 new binding::Decoder(decode_signal_, dec));
 958         binding->add_properties_to_form(decoder_form, true);
 959
 960         bindings_.push_back(binding);
 961
 962         form->addRow(group);
 963         decoder_forms_.push_back(group);
 964 }
 965
 966 QComboBox* DecodeTrace::create_channel_selector(QWidget *parent, const DecodeChannel *ch)
 967 {
 968         const auto sigs(session_.signalbases());
 969
 970         // Sort signals in natural order
 971         vector< shared_ptr<data::SignalBase> > sig_list(sigs.begin(), sigs.end());
 972         sort(sig_list.begin(), sig_list.end(),
 973                 [](const shared_ptr<data::SignalBase> &a,
 974                 const shared_ptr<data::SignalBase> &b) {
 975                         return strnatcasecmp(a->name().toStdString(),
 976                                 b->name().toStdString()) < 0; });
 977
 978         QComboBox *selector = new QComboBox(parent);
 979
 980         selector->addItem("-", qVariantFromValue((void*)nullptr));
 981
 982         if (!ch->assigned_signal)
 983                 selector->setCurrentIndex(0);
 984
 985         for (const shared_ptr<data::SignalBase> &b : sig_list) {
 986                 assert(b);
 987                 if (b->logic_data() && b->enabled()) {
 988                         selector->addItem(b->name(),
 989                                 qVariantFromValue((void*)b.get()));
 990
 991                         if (ch->assigned_signal == b.get())
 992                                 selector->setCurrentIndex(selector->count() - 1);
 993                 }
 994         }
 995
 996         return selector;
 997 }
 998
 999 QComboBox* DecodeTrace::create_channel_selector_init_state(QWidget *parent,
1000         const DecodeChannel *ch)
1001 {
1002         QComboBox *selector = new QComboBox(parent);
1003
1004         selector->addItem("0", qVariantFromValue((int)SRD_INITIAL_PIN_LOW));
1005         selector->addItem("1", qVariantFromValue((int)SRD_INITIAL_PIN_HIGH));
1006         selector->addItem("X", qVariantFromValue((int)SRD_INITIAL_PIN_SAME_AS_SAMPLE0));
1007
1008         selector->setCurrentIndex(ch->initial_pin_state);
1009
1010         selector->setToolTip("Initial (assumed) pin value before the first sample");
1011
1012         return selector;
1013 }
1014
1015 void DecodeTrace::export_annotations(vector<Annotation> *annotations) const
1016 {
1017         using namespace pv::data::decode;
1018
1019         GlobalSettings settings;
1020         const QString dir = settings.value("MainWindow/SaveDirectory").toString();
1021
1022         const QString file_name = QFileDialog::getSaveFileName(
1023                 owner_->view(), tr("Export annotations"), dir, tr("Text Files (*.txt);;All Files (*)"));
1024
1025         if (file_name.isEmpty())
1026                 return;
1027
1028         QString format = settings.value(GlobalSettings::Key_Dec_ExportFormat).toString();
1029         const QString quote = format.contains("%q") ? "\"" : "";
1030         format = format.remove("%q");
1031
1032         QFile file(file_name);
1033         if (file.open(QIODevice::WriteOnly | QIODevice::Truncate | QIODevice::Text)) {
1034                 QTextStream out_stream(&file);
1035
1036                 for (Annotation &ann : *annotations) {
1037                         const QString sample_range = QString("%1-%2") \
1038                                 .arg(QString::number(ann.start_sample()), QString::number(ann.end_sample()));
1039
1040                         const QString class_name = quote + ann.row()->class_name() + quote;
1041
1042                         QString all_ann_text;
1043                         for (const QString &s : ann.annotations())
1044                                 all_ann_text = all_ann_text + quote + s + quote + ",";
1045                         all_ann_text.chop(1);
1046
1047                         const QString first_ann_text = quote + ann.annotations().front() + quote;
1048
1049                         QString out_text = format;
1050                         out_text = out_text.replace("%s", sample_range);
1051                         out_text = out_text.replace("%d",
1052                                 quote + QString::fromUtf8(ann.row()->decoder()->name) + quote);
1053                         out_text = out_text.replace("%c", class_name);
1054                         out_text = out_text.replace("%1", first_ann_text);
1055                         out_text = out_text.replace("%a", all_ann_text);
1056                         out_stream << out_text << '\n';
1057                 }
1058
1059                 if (out_stream.status() == QTextStream::Ok)
1060                         return;
1061         }
1062
1063         QMessageBox msg(owner_->view());
1064         msg.setText(tr("Error") + "\n\n" + tr("File %1 could not be written to.").arg(file_name));
1065         msg.setStandardButtons(QMessageBox::Ok);
1066         msg.setIcon(QMessageBox::Warning);
1067         msg.exec();
1068 }
1069
1070 void DecodeTrace::on_new_annotations()
1071 {
1072         if (!delayed_trace_updater_.isActive())
1073                 delayed_trace_updater_.start();
1074 }
1075
1076 void DecodeTrace::on_delayed_trace_update()
1077 {
1078         if (owner_)
1079                 owner_->row_item_appearance_changed(false, true);
1080 }
1081
1082 void DecodeTrace::on_decode_reset()
1083 {
1084         visible_rows_.clear();
1085         max_visible_rows_ = 0;
1086
1087         if (owner_)
1088                 owner_->row_item_appearance_changed(false, true);
1089 }
1090
1091 void DecodeTrace::on_decode_finished()
1092 {
1093         if (owner_)
1094                 owner_->row_item_appearance_changed(false, true);
1095 }
1096
1097 void DecodeTrace::on_pause_decode()
1098 {
1099         if (decode_signal_->is_paused())
1100                 decode_signal_->resume_decode();
1101         else
1102                 decode_signal_->pause_decode();
1103 }
1104
1105 void DecodeTrace::delete_pressed()
1106 {
1107         on_delete();
1108 }
1109
1110 void DecodeTrace::on_delete()
1111 {
1112         session_.remove_decode_signal(decode_signal_);
1113 }
1114
1115 void DecodeTrace::on_channel_selected(int)
1116 {
1117         QComboBox *cb = qobject_cast<QComboBox*>(QObject::sender());
1118
1119         // Determine signal that was selected
1120         const data::SignalBase *signal =
1121                 (data::SignalBase*)cb->itemData(cb->currentIndex()).value<void*>();
1122
1123         // Determine decode channel ID this combo box is the channel selector for
1124         const uint16_t id = channel_id_map_.at(cb);
1125
1126         decode_signal_->assign_signal(id, signal);
1127 }
1128
1129 void DecodeTrace::on_channels_updated()
1130 {
1131         if (owner_)
1132                 owner_->row_item_appearance_changed(false, true);
1133 }
1134
1135 void DecodeTrace::on_init_state_changed(int)
1136 {
1137         QComboBox *cb = qobject_cast<QComboBox*>(QObject::sender());
1138
1139         // Determine inital pin state that was selected
1140         int init_state = cb->itemData(cb->currentIndex()).value<int>();
1141
1142         // Determine decode channel ID this combo box is the channel selector for
1143         const uint16_t id = init_state_map_.at(cb);
1144
1145         decode_signal_->set_initial_pin_state(id, init_state);
1146 }
1147
1148 void DecodeTrace::on_stack_decoder(srd_decoder *decoder)
1149 {
1150         decode_signal_->stack_decoder(decoder);
1151
1152         create_popup_form();
1153 }
1154
1155 void DecodeTrace::on_delete_decoder(int index)
1156 {
1157         decode_signal_->remove_decoder(index);
1158
1159         // Force re-calculation of the trace height, see paint_mid()
1160         max_visible_rows_ = 0;
1161         owner_->extents_changed(false, true);
1162
1163         // Update the popup
1164         create_popup_form();
1165 }
1166
1167 void DecodeTrace::on_show_hide_decoder(int index)
1168 {
1169         const bool state = decode_signal_->toggle_decoder_visibility(index);
1170
1171         assert(index < (int)decoder_forms_.size());
1172         decoder_forms_[index]->set_decoder_visible(state);
1173
1174         if (!state) {
1175                 // Force re-calculation of the trace height, see paint_mid()
1176                 max_visible_rows_ = 0;
1177                 owner_->extents_changed(false, true);
1178         }
1179
1180         if (owner_)
1181                 owner_->row_item_appearance_changed(false, true);
1182 }
1183
1184 void DecodeTrace::on_copy_annotation_to_clipboard()
1185 {
1186         using namespace pv::data::decode;
1187
1188         if (!selected_row_)
1189                 return;
1190
1191         vector<Annotation> *annotations = new vector<Annotation>();
1192
1193         decode_signal_->get_annotation_subset(*annotations, *selected_row_,
1194                 current_segment_, selected_sample_range_.first, selected_sample_range_.first);
1195
1196         if (annotations->empty())
1197                 return;
1198
1199         QClipboard *clipboard = QGuiApplication::clipboard();
1200         clipboard->setText(annotations->front().annotations().front());
1201
1202         delete annotations;
1203 }
1204
1205 void DecodeTrace::on_export_row()
1206 {
1207         selected_sample_range_ = make_pair(0, numeric_limits<uint64_t>::max());
1208         on_export_row_from_here();
1209 }
1210
1211 void DecodeTrace::on_export_all_rows()
1212 {
1213         selected_sample_range_ = make_pair(0, numeric_limits<uint64_t>::max());
1214         on_export_all_rows_from_here();
1215 }
1216
1217 void DecodeTrace::on_export_row_with_cursor()
1218 {
1219         const View *view = owner_->view();
1220         assert(view);
1221
1222         if (!view->cursors()->enabled())
1223                 return;
1224
1225         const double samplerate = session_.get_samplerate();
1226
1227         const pv::util::Timestamp& start_time = view->cursors()->first()->time();
1228         const pv::util::Timestamp& end_time = view->cursors()->second()->time();
1229
1230         const uint64_t start_sample = (uint64_t)max(
1231                 0.0, start_time.convert_to<double>() * samplerate);
1232         const uint64_t end_sample = (uint64_t)max(
1233                 0.0, end_time.convert_to<double>() * samplerate);
1234
1235         // Are both cursors negative and thus were clamped to 0?
1236         if ((start_sample == 0) && (end_sample == 0))
1237                 return;
1238
1239         selected_sample_range_ = make_pair(start_sample, end_sample);
1240         on_export_row_from_here();
1241 }
1242
1243 void DecodeTrace::on_export_all_rows_with_cursor()
1244 {
1245         const View *view = owner_->view();
1246         assert(view);
1247
1248         if (!view->cursors()->enabled())
1249                 return;
1250
1251         const double samplerate = session_.get_samplerate();
1252
1253         const pv::util::Timestamp& start_time = view->cursors()->first()->time();
1254         const pv::util::Timestamp& end_time = view->cursors()->second()->time();
1255
1256         const uint64_t start_sample = (uint64_t)max(
1257                 0.0, start_time.convert_to<double>() * samplerate);
1258         const uint64_t end_sample = (uint64_t)max(
1259                 0.0, end_time.convert_to<double>() * samplerate);
1260
1261         // Are both cursors negative and thus were clamped to 0?
1262         if ((start_sample == 0) && (end_sample == 0))
1263                 return;
1264
1265         selected_sample_range_ = make_pair(start_sample, end_sample);
1266         on_export_all_rows_from_here();
1267 }
1268
1269 void DecodeTrace::on_export_row_from_here()
1270 {
1271         using namespace pv::data::decode;
1272
1273         if (!selected_row_)
1274                 return;
1275
1276         vector<Annotation> *annotations = new vector<Annotation>();
1277
1278         decode_signal_->get_annotation_subset(*annotations, *selected_row_,
1279                 current_segment_, selected_sample_range_.first, selected_sample_range_.second);
1280
1281         if (annotations->empty())
1282                 return;
1283
1284         export_annotations(annotations);
1285         delete annotations;
1286 }
1287
1288 void DecodeTrace::on_export_all_rows_from_here()
1289 {
1290         using namespace pv::data::decode;
1291
1292         vector<Annotation> *annotations = new vector<Annotation>();
1293
1294         decode_signal_->get_annotation_subset(*annotations, current_segment_,
1295                         selected_sample_range_.first, selected_sample_range_.second);
1296
1297         if (!annotations->empty())
1298                 export_annotations(annotations);
1299
1300         delete annotations;
1301 }
1302
1303 } // namespace trace
1304 } // namespace views
1305 } // namespace pv