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::find_if;
  62 using std::lock_guard;
  63 using std::make_pair;
  64 using std::max;
  65 using std::min;
  66 using std::numeric_limits;
  67 using std::out_of_range;
  68 using std::pair;
  69 using std::shared_ptr;
  70 using std::tie;
  71 using std::vector;
  72
  73 using pv::data::decode::Annotation;
  74 using pv::data::decode::Row;
  75 using pv::data::decode::DecodeChannel;
  76 using pv::data::DecodeSignal;
  77
  78 namespace pv {
  79 namespace views {
  80 namespace trace {
  81
  82
  83 #define DECODETRACE_COLOR_SATURATION (180) /* 0-255 */
  84 #define DECODETRACE_COLOR_VALUE (170) /* 0-255 */
  85
  86 const QColor DecodeTrace::ErrorBgColor = QColor(0xEF, 0x29, 0x29);
  87 const QColor DecodeTrace::NoDecodeColor = QColor(0x88, 0x8A, 0x85);
  88
  89 const int DecodeTrace::ArrowSize = 7;
  90 const double DecodeTrace::EndCapWidth = 5;
  91 const int DecodeTrace::RowTitleMargin = 10;
  92 const int DecodeTrace::DrawPadding = 100;
  93
  94 const int DecodeTrace::MaxTraceUpdateRate = 1; // No more than 1 Hz
  95
  96 DecodeTrace::DecodeTrace(pv::Session &session,
  97         shared_ptr<data::SignalBase> signalbase, int index) :
  98         Trace(signalbase),
  99         session_(session),
 100         max_visible_rows_(0),
 101         delete_mapper_(this),
 102         show_hide_mapper_(this)
 103 {
 104         decode_signal_ = dynamic_pointer_cast<data::DecodeSignal>(base_);
 105
 106         GlobalSettings settings;
 107         always_show_all_rows_ = settings.value(GlobalSettings::Key_Dec_AlwaysShowAllRows).toBool();
 108
 109         GlobalSettings::add_change_handler(this);
 110
 111         // Determine shortest string we want to see displayed in full
 112         QFontMetrics m(QApplication::font());
 113         min_useful_label_width_ = m.width("XX"); // e.g. two hex characters
 114
 115         default_row_height_ = (ViewItemPaintParams::text_height() * 6) / 4;
 116
 117         // For the base color, we want to start at a very different color for
 118         // every decoder stack, so multiply the index with a number that is
 119         // rather close to 180 degrees of the color circle but not a dividend of 360
 120         // Note: The offset equals the color of the first annotation
 121         QColor color;
 122         const int h = (120 + 160 * index) % 360;
 123         const int s = DECODETRACE_COLOR_SATURATION;
 124         const int v = DECODETRACE_COLOR_VALUE;
 125         color.setHsv(h, s, v);
 126         base_->set_color(color);
 127
 128         connect(decode_signal_.get(), SIGNAL(new_annotations()),
 129                 this, SLOT(on_new_annotations()));
 130         connect(decode_signal_.get(), SIGNAL(decode_reset()),
 131                 this, SLOT(on_decode_reset()));
 132         connect(decode_signal_.get(), SIGNAL(decode_finished()),
 133                 this, SLOT(on_decode_finished()));
 134         connect(decode_signal_.get(), SIGNAL(channels_updated()),
 135                 this, SLOT(on_channels_updated()));
 136
 137         connect(&delete_mapper_, SIGNAL(mapped(int)),
 138                 this, SLOT(on_delete_decoder(int)));
 139         connect(&show_hide_mapper_, SIGNAL(mapped(int)),
 140                 this, SLOT(on_show_hide_decoder(int)));
 141
 142         connect(&delayed_trace_updater_, SIGNAL(timeout()),
 143                 this, SLOT(on_delayed_trace_update()));
 144         delayed_trace_updater_.setSingleShot(true);
 145         delayed_trace_updater_.setInterval(1000 / MaxTraceUpdateRate);
 146 }
 147
 148 DecodeTrace::~DecodeTrace()
 149 {
 150         GlobalSettings::remove_change_handler(this);
 151 }
 152
 153 bool DecodeTrace::enabled() const
 154 {
 155         return true;
 156 }
 157
 158 shared_ptr<data::SignalBase> DecodeTrace::base() const
 159 {
 160         return base_;
 161 }
 162
 163 pair<int, int> DecodeTrace::v_extents() const
 164 {
 165         // Make an empty decode trace appear symmetrical
 166         if (max_visible_rows_ == 0)
 167                 return make_pair(-default_row_height_, default_row_height_);
 168
 169         unsigned int height = 0;
 170         for (const RowData& r : rows_)
 171                 if (r.currently_visible)
 172                         height += r.height;
 173
 174         return make_pair(-default_row_height_, height);
 175 }
 176
 177 void DecodeTrace::paint_back(QPainter &p, ViewItemPaintParams &pp)
 178 {
 179         Trace::paint_back(p, pp);
 180         paint_axis(p, pp, get_visual_y());
 181 }
 182
 183 void DecodeTrace::paint_mid(QPainter &p, ViewItemPaintParams &pp)
 184 {
 185         lock_guard<mutex> lock(row_modification_mutex_);
 186
 187         const int text_height = ViewItemPaintParams::text_height();
 188         const int annotation_height = (text_height * 5) / 4;
 189
 190         // Set default pen to allow for text width calculation
 191         p.setPen(Qt::black);
 192
 193         pair<uint64_t, uint64_t> sample_range = get_view_sample_range(pp.left(), pp.right());
 194
 195         // Just because the view says we see a certain sample range it
 196         // doesn't mean we have this many decoded samples, too, so crop
 197         // the range to what has been decoded already
 198         sample_range.second = min((int64_t)sample_range.second,
 199                 decode_signal_->get_decoded_sample_count(current_segment_, false));
 200
 201         for (RowData& r : rows_)
 202                 r.currently_visible = false;
 203         visible_rows_ = 0;
 204         int y = get_visual_y();
 205
 206         for (RowData& r : rows_) {
 207                 vector<Annotation> annotations;
 208                 decode_signal_->get_annotation_subset(annotations, r.decode_row,
 209                         current_segment_, sample_range.first, sample_range.second);
 210
 211                 // Show row if there are visible annotations or when user wants to see
 212                 // all rows that have annotations somewhere and this one is one of them
 213                 size_t ann_count = decode_signal_->get_annotation_count(r.decode_row, current_segment_);
 214                 r.currently_visible = (!annotations.empty() || (always_show_all_rows_ && (ann_count > 0)))
 215                         && (r.decode_row.decoder()->shown());
 216
 217                 if (r.currently_visible) {
 218                         draw_annotations(annotations, p, annotation_height, pp, y,
 219                                 get_row_color(r.decode_row.index()), r.title_width);
 220                         y += r.height;
 221                         visible_rows_++;
 222                 }
 223         }
 224
 225         draw_unresolved_period(p, annotation_height, pp.left(), pp.right());
 226
 227         if (visible_rows_ > max_visible_rows_) {
 228                 max_visible_rows_ = visible_rows_;
 229
 230                 // Call order is important, otherwise the lazy event handler won't work
 231                 owner_->extents_changed(false, true);
 232                 owner_->row_item_appearance_changed(false, true);
 233         }
 234
 235         const QString err = decode_signal_->error_message();
 236         if (!err.isEmpty())
 237                 draw_error(p, err, pp);
 238 }
 239
 240 void DecodeTrace::paint_fore(QPainter &p, ViewItemPaintParams &pp)
 241 {
 242         unsigned int y = get_visual_y();
 243
 244         for (const RowData& r : rows_) {
 245                 if (!r.currently_visible)
 246                         continue;
 247
 248                 p.setPen(QPen(Qt::NoPen));
 249
 250                 if (r.expand_marker_highlighted)
 251                         p.setBrush(QApplication::palette().brush(QPalette::HighlightedText));
 252                 else
 253                         p.setBrush(QApplication::palette().brush(QPalette::WindowText));
 254
 255                 // Draw expansion marker
 256                 const QPointF points[] = {
 257                         QPointF(pp.left(), y - ArrowSize),
 258                         QPointF(pp.left() + ArrowSize, y),
 259                         QPointF(pp.left(), y + ArrowSize)
 260                 };
 261                 p.drawPolygon(points, countof(points));
 262
 263                 p.setBrush(QApplication::palette().brush(QPalette::WindowText));
 264
 265                 const QRect text_rect(pp.left() + ArrowSize * 2, y - r.height / 2,
 266                         pp.right() - pp.left(), r.height);
 267                 const QString h(r.decode_row.title());
 268                 const int f = Qt::AlignLeft | Qt::AlignVCenter |
 269                         Qt::TextDontClip;
 270
 271                 // Draw the outline
 272                 p.setPen(QApplication::palette().color(QPalette::Base));
 273                 for (int dx = -1; dx <= 1; dx++)
 274                         for (int dy = -1; dy <= 1; dy++)
 275                                 if (dx != 0 && dy != 0)
 276                                         p.drawText(text_rect.translated(dx, dy), f, h);
 277
 278                 // Draw the text
 279                 p.setPen(QApplication::palette().color(QPalette::WindowText));
 280                 p.drawText(text_rect, f, h);
 281
 282                 y += r.height;
 283         }
 284
 285         if (show_hover_marker_)
 286                 paint_hover_marker(p);
 287 }
 288
 289 void DecodeTrace::update_stack_button()
 290 {
 291         const vector< shared_ptr<data::decode::Decoder> > &stack = decode_signal_->decoder_stack();
 292
 293         // Only show decoders in the menu that can be stacked onto the last one in the stack
 294         if (!stack.empty()) {
 295                 const srd_decoder* d = stack.back()->decoder();
 296
 297                 if (d->outputs) {
 298                         pv::widgets::DecoderMenu *const decoder_menu =
 299                                 new pv::widgets::DecoderMenu(stack_button_, (const char*)(d->outputs->data));
 300                         connect(decoder_menu, SIGNAL(decoder_selected(srd_decoder*)),
 301                                 this, SLOT(on_stack_decoder(srd_decoder*)));
 302
 303                         decoder_menu->setStyleSheet("QMenu { menu-scrollable: 1; }");
 304
 305                         stack_button_->setMenu(decoder_menu);
 306                         stack_button_->show();
 307                         return;
 308                 }
 309         }
 310
 311         // No decoders available for stacking
 312         stack_button_->setMenu(nullptr);
 313         stack_button_->hide();
 314 }
 315
 316 void DecodeTrace::populate_popup_form(QWidget *parent, QFormLayout *form)
 317 {
 318         using pv::data::decode::Decoder;
 319
 320         assert(form);
 321
 322         // Add the standard options
 323         Trace::populate_popup_form(parent, form);
 324
 325         // Add the decoder options
 326         bindings_.clear();
 327         channel_id_map_.clear();
 328         init_state_map_.clear();
 329         decoder_forms_.clear();
 330
 331         const vector< shared_ptr<Decoder> > &stack = decode_signal_->decoder_stack();
 332
 333         if (stack.empty()) {
 334                 QLabel *const l = new QLabel(
 335                         tr("<p><i>No decoders in the stack</i></p>"));
 336                 l->setAlignment(Qt::AlignCenter);
 337                 form->addRow(l);
 338         } else {
 339                 auto iter = stack.cbegin();
 340                 for (int i = 0; i < (int)stack.size(); i++, iter++) {
 341                         shared_ptr<Decoder> dec(*iter);
 342                         create_decoder_form(i, dec, parent, form);
 343                 }
 344
 345                 form->addRow(new QLabel(
 346                         tr("<i>* Required channels</i>"), parent));
 347         }
 348
 349         // Add stacking button
 350         stack_button_ = new QPushButton(tr("Stack Decoder"), parent);
 351         stack_button_->setToolTip(tr("Stack a higher-level decoder on top of this one"));
 352         update_stack_button();
 353
 354         QHBoxLayout *stack_button_box = new QHBoxLayout;
 355         stack_button_box->addWidget(stack_button_, 0, Qt::AlignRight);
 356         form->addRow(stack_button_box);
 357 }
 358
 359 QMenu* DecodeTrace::create_header_context_menu(QWidget *parent)
 360 {
 361         QMenu *const menu = Trace::create_header_context_menu(parent);
 362
 363         menu->addSeparator();
 364
 365         QAction *const del = new QAction(tr("Delete"), this);
 366         del->setShortcuts(QKeySequence::Delete);
 367         connect(del, SIGNAL(triggered()), this, SLOT(on_delete()));
 368         menu->addAction(del);
 369
 370         return menu;
 371 }
 372
 373 QMenu* DecodeTrace::create_view_context_menu(QWidget *parent, QPoint &click_pos)
 374 {
 375         // Get entries from default menu before adding our own
 376         QMenu *const menu = new QMenu(parent);
 377
 378         QMenu* default_menu = Trace::create_view_context_menu(parent, click_pos);
 379         if (default_menu) {
 380                 for (QAction *action : default_menu->actions()) {  // clazy:exclude=range-loop
 381                         menu->addAction(action);
 382                         if (action->parent() == default_menu)
 383                                 action->setParent(menu);
 384                 }
 385                 delete default_menu;
 386
 387                 // Add separator if needed
 388                 if (menu->actions().length() > 0)
 389                         menu->addSeparator();
 390         }
 391
 392         selected_row_ = nullptr;
 393         const RowData* r = get_row_at_point(click_pos);
 394         if (r)
 395                 selected_row_ = &(r->decode_row);
 396
 397         const View *const view = owner_->view();
 398         assert(view);
 399         QPoint pos = view->viewport()->mapFrom(parent, click_pos);
 400
 401         // Default sample range is "from here"
 402         const pair<uint64_t, uint64_t> sample_range = get_view_sample_range(pos.x(), pos.x() + 1);
 403         selected_sample_range_ = make_pair(sample_range.first, numeric_limits<uint64_t>::max());
 404
 405         if (decode_signal_->is_paused()) {
 406                 QAction *const resume =
 407                         new QAction(tr("Resume decoding"), this);
 408                 resume->setIcon(QIcon::fromTheme("media-playback-start",
 409                         QIcon(":/icons/media-playback-start.png")));
 410                 connect(resume, SIGNAL(triggered()), this, SLOT(on_pause_decode()));
 411                 menu->addAction(resume);
 412         } else {
 413                 QAction *const pause =
 414                         new QAction(tr("Pause decoding"), this);
 415                 pause->setIcon(QIcon::fromTheme("media-playback-pause",
 416                         QIcon(":/icons/media-playback-pause.png")));
 417                 connect(pause, SIGNAL(triggered()), this, SLOT(on_pause_decode()));
 418                 menu->addAction(pause);
 419         }
 420
 421         QAction *const copy_annotation_to_clipboard =
 422                 new QAction(tr("Copy annotation text to clipboard"), this);
 423         copy_annotation_to_clipboard->setIcon(QIcon::fromTheme("edit-paste",
 424                 QIcon(":/icons/edit-paste.svg")));
 425         connect(copy_annotation_to_clipboard, SIGNAL(triggered()), this, SLOT(on_copy_annotation_to_clipboard()));
 426         menu->addAction(copy_annotation_to_clipboard);
 427
 428         menu->addSeparator();
 429
 430         QAction *const export_all_rows =
 431                 new QAction(tr("Export all annotations"), this);
 432         export_all_rows->setIcon(QIcon::fromTheme("document-save-as",
 433                 QIcon(":/icons/document-save-as.png")));
 434         connect(export_all_rows, SIGNAL(triggered()), this, SLOT(on_export_all_rows()));
 435         menu->addAction(export_all_rows);
 436
 437         QAction *const export_row =
 438                 new QAction(tr("Export all annotations for this row"), this);
 439         export_row->setIcon(QIcon::fromTheme("document-save-as",
 440                 QIcon(":/icons/document-save-as.png")));
 441         connect(export_row, SIGNAL(triggered()), this, SLOT(on_export_row()));
 442         menu->addAction(export_row);
 443
 444         menu->addSeparator();
 445
 446         QAction *const export_all_rows_from_here =
 447                 new QAction(tr("Export all annotations, starting here"), this);
 448         export_all_rows_from_here->setIcon(QIcon::fromTheme("document-save-as",
 449                 QIcon(":/icons/document-save-as.png")));
 450         connect(export_all_rows_from_here, SIGNAL(triggered()), this, SLOT(on_export_all_rows_from_here()));
 451         menu->addAction(export_all_rows_from_here);
 452
 453         QAction *const export_row_from_here =
 454                 new QAction(tr("Export annotations for this row, starting here"), this);
 455         export_row_from_here->setIcon(QIcon::fromTheme("document-save-as",
 456                 QIcon(":/icons/document-save-as.png")));
 457         connect(export_row_from_here, SIGNAL(triggered()), this, SLOT(on_export_row_from_here()));
 458         menu->addAction(export_row_from_here);
 459
 460         menu->addSeparator();
 461
 462         QAction *const export_all_rows_with_cursor =
 463                 new QAction(tr("Export all annotations within cursor range"), this);
 464         export_all_rows_with_cursor->setIcon(QIcon::fromTheme("document-save-as",
 465                 QIcon(":/icons/document-save-as.png")));
 466         connect(export_all_rows_with_cursor, SIGNAL(triggered()), this, SLOT(on_export_all_rows_with_cursor()));
 467         menu->addAction(export_all_rows_with_cursor);
 468
 469         QAction *const export_row_with_cursor =
 470                 new QAction(tr("Export annotations for this row within cursor range"), this);
 471         export_row_with_cursor->setIcon(QIcon::fromTheme("document-save-as",
 472                 QIcon(":/icons/document-save-as.png")));
 473         connect(export_row_with_cursor, SIGNAL(triggered()), this, SLOT(on_export_row_with_cursor()));
 474         menu->addAction(export_row_with_cursor);
 475
 476         if (!view->cursors()->enabled()) {
 477                 export_all_rows_with_cursor->setEnabled(false);
 478                 export_row_with_cursor->setEnabled(false);
 479         }
 480
 481         return menu;
 482 }
 483
 484 void DecodeTrace::draw_annotations(vector<pv::data::decode::Annotation> annotations,
 485                 QPainter &p, int h, const ViewItemPaintParams &pp, int y,
 486                 QColor row_color, int row_title_width)
 487 {
 488         using namespace pv::data::decode;
 489
 490         Annotation::Class block_class = 0;
 491         bool block_class_uniform = true;
 492         qreal block_start = 0;
 493         int block_ann_count = 0;
 494
 495         const Annotation *prev_ann;
 496         qreal prev_end = INT_MIN;
 497
 498         qreal a_end;
 499
 500         double samples_per_pixel, pixels_offset;
 501         tie(pixels_offset, samples_per_pixel) =
 502                 get_pixels_offset_samples_per_pixel();
 503
 504         // Sort the annotations by start sample so that decoders
 505         // can't confuse us by creating annotations out of order
 506         stable_sort(annotations.begin(), annotations.end(),
 507                 [](const Annotation &a, const Annotation &b) {
 508                         return a.start_sample() < b.start_sample(); });
 509
 510         // Gather all annotations that form a visual "block" and draw them as such
 511         for (const Annotation &a : annotations) {
 512
 513                 const qreal abs_a_start = a.start_sample() / samples_per_pixel;
 514                 const qreal abs_a_end   = a.end_sample() / samples_per_pixel;
 515
 516                 const qreal a_start = abs_a_start - pixels_offset;
 517                 a_end = abs_a_end - pixels_offset;
 518
 519                 const qreal a_width = a_end - a_start;
 520                 const qreal delta = a_end - prev_end;
 521
 522                 bool a_is_separate = false;
 523
 524                 // Annotation wider than the threshold for a useful label width?
 525                 if (a_width >= min_useful_label_width_) {
 526                         for (const QString &ann_text : a.annotations()) {
 527                                 const qreal w = p.boundingRect(QRectF(), 0, ann_text).width();
 528                                 // Annotation wide enough to fit a label? Don't put it in a block then
 529                                 if (w <= a_width) {
 530                                         a_is_separate = true;
 531                                         break;
 532                                 }
 533                         }
 534                 }
 535
 536                 // Were the previous and this annotation more than a pixel apart?
 537                 if ((abs(delta) > 1) || a_is_separate) {
 538                         // Block was broken, draw annotations that form the current block
 539                         if (block_ann_count == 1)
 540                                 draw_annotation(*prev_ann, p, h, pp, y, row_color,
 541                                         row_title_width);
 542                         else if (block_ann_count > 0)
 543                                 draw_annotation_block(block_start, prev_end, block_class,
 544                                         block_class_uniform, p, h, y, row_color);
 545
 546                         block_ann_count = 0;
 547                 }
 548
 549                 if (a_is_separate) {
 550                         draw_annotation(a, p, h, pp, y, row_color, row_title_width);
 551                         // Next annotation must start a new block. delta will be > 1
 552                         // because we set prev_end to INT_MIN but that's okay since
 553                         // block_ann_count will be 0 and nothing will be drawn
 554                         prev_end = INT_MIN;
 555                         block_ann_count = 0;
 556                 } else {
 557                         prev_end = a_end;
 558                         prev_ann = &a;
 559
 560                         if (block_ann_count == 0) {
 561                                 block_start = a_start;
 562                                 block_class = a.ann_class();
 563                                 block_class_uniform = true;
 564                         } else
 565                                 if (a.ann_class() != block_class)
 566                                         block_class_uniform = false;
 567
 568                         block_ann_count++;
 569                 }
 570         }
 571
 572         if (block_ann_count == 1)
 573                 draw_annotation(*prev_ann, p, h, pp, y, row_color, row_title_width);
 574         else if (block_ann_count > 0)
 575                 draw_annotation_block(block_start, prev_end, block_class,
 576                         block_class_uniform, p, h, y, row_color);
 577 }
 578
 579 void DecodeTrace::draw_annotation(const pv::data::decode::Annotation &a,
 580         QPainter &p, int h, const ViewItemPaintParams &pp, int y,
 581         QColor row_color, int row_title_width) const
 582 {
 583         double samples_per_pixel, pixels_offset;
 584         tie(pixels_offset, samples_per_pixel) =
 585                 get_pixels_offset_samples_per_pixel();
 586
 587         const double start = a.start_sample() / samples_per_pixel -
 588                 pixels_offset;
 589         const double end = a.end_sample() / samples_per_pixel - pixels_offset;
 590
 591         QColor color = get_annotation_color(row_color, a.ann_class());
 592         p.setPen(color.darker());
 593         p.setBrush(color);
 594
 595         if (start > pp.right() + DrawPadding || end < pp.left() - DrawPadding)
 596                 return;
 597
 598         if (a.start_sample() == a.end_sample())
 599                 draw_instant(a, p, h, start, y);
 600         else
 601                 draw_range(a, p, h, start, end, y, pp, row_title_width);
 602 }
 603
 604 void DecodeTrace::draw_annotation_block(qreal start, qreal end,
 605         Annotation::Class ann_class, bool use_ann_format, QPainter &p, int h,
 606         int y, QColor row_color) const
 607 {
 608         const double top = y + .5 - h / 2;
 609         const double bottom = y + .5 + h / 2;
 610
 611         const QRectF rect(start, top, end - start, bottom - top);
 612         const int r = h / 4;
 613
 614         p.setPen(QPen(Qt::NoPen));
 615         p.setBrush(Qt::white);
 616         p.drawRoundedRect(rect, r, r);
 617
 618         // If all annotations in this block are of the same type, we can use the
 619         // one format that all of these annotations have. Otherwise, we should use
 620         // a neutral color (i.e. gray)
 621         if (use_ann_format) {
 622                 const QColor color = get_annotation_color(row_color, ann_class);
 623                 p.setPen(color.darker());
 624                 p.setBrush(QBrush(color, Qt::Dense4Pattern));
 625         } else {
 626                 p.setPen(Qt::gray);
 627                 p.setBrush(QBrush(Qt::gray, Qt::Dense4Pattern));
 628         }
 629
 630         p.drawRoundedRect(rect, r, r);
 631 }
 632
 633 void DecodeTrace::draw_instant(const pv::data::decode::Annotation &a, QPainter &p,
 634         int h, qreal x, int y) const
 635 {
 636         const QString text = a.annotations().empty() ?
 637                 QString() : a.annotations().back();
 638         const qreal w = min((qreal)p.boundingRect(QRectF(), 0, text).width(),
 639                 0.0) + h;
 640         const QRectF rect(x - w / 2, y - h / 2, w, h);
 641
 642         p.drawRoundedRect(rect, h / 2, h / 2);
 643
 644         p.setPen(Qt::black);
 645         p.drawText(rect, Qt::AlignCenter | Qt::AlignVCenter, text);
 646 }
 647
 648 void DecodeTrace::draw_range(const pv::data::decode::Annotation &a, QPainter &p,
 649         int h, qreal start, qreal end, int y, const ViewItemPaintParams &pp,
 650         int row_title_width) const
 651 {
 652         const qreal top = y + .5 - h / 2;
 653         const qreal bottom = y + .5 + h / 2;
 654         const vector<QString> annotations = a.annotations();
 655
 656         // If the two ends are within 1 pixel, draw a vertical line
 657         if (start + 1.0 > end) {
 658                 p.drawLine(QPointF(start, top), QPointF(start, bottom));
 659                 return;
 660         }
 661
 662         const qreal cap_width = min((end - start) / 4, EndCapWidth);
 663
 664         QPointF pts[] = {
 665                 QPointF(start, y + .5f),
 666                 QPointF(start + cap_width, top),
 667                 QPointF(end - cap_width, top),
 668                 QPointF(end, y + .5f),
 669                 QPointF(end - cap_width, bottom),
 670                 QPointF(start + cap_width, bottom)
 671         };
 672
 673         p.drawConvexPolygon(pts, countof(pts));
 674
 675         if (annotations.empty())
 676                 return;
 677
 678         const int ann_start = start + cap_width;
 679         const int ann_end = end - cap_width;
 680
 681         const int real_start = max(ann_start, pp.left() + row_title_width);
 682         const int real_end = min(ann_end, pp.right());
 683         const int real_width = real_end - real_start;
 684
 685         QRectF rect(real_start, y - h / 2, real_width, h);
 686         if (rect.width() <= 4)
 687                 return;
 688
 689         p.setPen(Qt::black);
 690
 691         // Try to find an annotation that will fit
 692         QString best_annotation;
 693         int best_width = 0;
 694
 695         for (const QString &a : annotations) {
 696                 const int w = p.boundingRect(QRectF(), 0, a).width();
 697                 if (w <= rect.width() && w > best_width)
 698                         best_annotation = a, best_width = w;
 699         }
 700
 701         if (best_annotation.isEmpty())
 702                 best_annotation = annotations.back();
 703
 704         // If not ellide the last in the list
 705         p.drawText(rect, Qt::AlignCenter, p.fontMetrics().elidedText(
 706                 best_annotation, Qt::ElideRight, rect.width()));
 707 }
 708
 709 void DecodeTrace::draw_error(QPainter &p, const QString &message,
 710         const ViewItemPaintParams &pp)
 711 {
 712         const int y = get_visual_y();
 713
 714         double samples_per_pixel, pixels_offset;
 715         tie(pixels_offset, samples_per_pixel) = get_pixels_offset_samples_per_pixel();
 716
 717         p.setPen(ErrorBgColor.darker());
 718         p.setBrush(ErrorBgColor);
 719
 720         const QRectF bounding_rect = QRectF(pp.left(), INT_MIN / 2 + y, pp.right(), INT_MAX);
 721
 722         const QRectF text_rect = p.boundingRect(bounding_rect, Qt::AlignCenter, message);
 723         const qreal r = text_rect.height() / 4;
 724
 725         p.drawRoundedRect(text_rect.adjusted(-r, -r, r, r), r, r, Qt::AbsoluteSize);
 726
 727         p.setPen(Qt::black);
 728         p.drawText(text_rect, message);
 729 }
 730
 731 void DecodeTrace::draw_unresolved_period(QPainter &p, int h, int left, int right) const
 732 {
 733         using namespace pv::data;
 734         using pv::data::decode::Decoder;
 735
 736         double samples_per_pixel, pixels_offset;
 737
 738         const int64_t sample_count = decode_signal_->get_working_sample_count(current_segment_);
 739         if (sample_count == 0)
 740                 return;
 741
 742         const int64_t samples_decoded = decode_signal_->get_decoded_sample_count(current_segment_, true);
 743         if (sample_count == samples_decoded)
 744                 return;
 745
 746         const int y = get_visual_y();
 747
 748         tie(pixels_offset, samples_per_pixel) = get_pixels_offset_samples_per_pixel();
 749
 750         const double start = max(samples_decoded /
 751                 samples_per_pixel - pixels_offset, left - 1.0);
 752         const double end = min(sample_count / samples_per_pixel -
 753                 pixels_offset, right + 1.0);
 754         const QRectF no_decode_rect(start, y - (h / 2) - 0.5, end - start, h);
 755
 756         p.setPen(QPen(Qt::NoPen));
 757         p.setBrush(Qt::white);
 758         p.drawRect(no_decode_rect);
 759
 760         p.setPen(NoDecodeColor);
 761         p.setBrush(QBrush(NoDecodeColor, Qt::Dense6Pattern));
 762         p.drawRect(no_decode_rect);
 763 }
 764
 765 pair<double, double> DecodeTrace::get_pixels_offset_samples_per_pixel() const
 766 {
 767         assert(owner_);
 768
 769         const View *view = owner_->view();
 770         assert(view);
 771
 772         const double scale = view->scale();
 773         assert(scale > 0);
 774
 775         const double pixels_offset =
 776                 ((view->offset() - decode_signal_->start_time()) / scale).convert_to<double>();
 777
 778         double samplerate = decode_signal_->samplerate();
 779
 780         // Show sample rate as 1Hz when it is unknown
 781         if (samplerate == 0.0)
 782                 samplerate = 1.0;
 783
 784         return make_pair(pixels_offset, samplerate * scale);
 785 }
 786
 787 pair<uint64_t, uint64_t> DecodeTrace::get_view_sample_range(
 788         int x_start, int x_end) const
 789 {
 790         double samples_per_pixel, pixels_offset;
 791         tie(pixels_offset, samples_per_pixel) =
 792                 get_pixels_offset_samples_per_pixel();
 793
 794         const uint64_t start = (uint64_t)max(
 795                 (x_start + pixels_offset) * samples_per_pixel, 0.0);
 796         const uint64_t end = (uint64_t)max(
 797                 (x_end + pixels_offset) * samples_per_pixel, 0.0);
 798
 799         return make_pair(start, end);
 800 }
 801
 802 QColor DecodeTrace::get_row_color(int row_index) const
 803 {
 804         // For each row color, use the base color hue and add an offset that's
 805         // not a dividend of 360
 806
 807         QColor color;
 808         const int h = (base_->color().toHsv().hue() + 20 * row_index) % 360;
 809         const int s = DECODETRACE_COLOR_SATURATION;
 810         const int v = DECODETRACE_COLOR_VALUE;
 811         color.setHsl(h, s, v);
 812
 813         return color;
 814 }
 815
 816 QColor DecodeTrace::get_annotation_color(QColor row_color, int annotation_index) const
 817 {
 818         // For each row color, use the base color hue and add an offset that's
 819         // not a dividend of 360 and not a multiple of the row offset
 820
 821         QColor color(row_color);
 822         const int h = (color.toHsv().hue() + 55 * annotation_index) % 360;
 823         const int s = DECODETRACE_COLOR_SATURATION;
 824         const int v = DECODETRACE_COLOR_VALUE;
 825         color.setHsl(h, s, v);
 826
 827         return color;
 828 }
 829
 830 unsigned int DecodeTrace::get_row_y(const RowData* row) const
 831 {
 832         assert(row);
 833
 834         unsigned int y = get_visual_y();
 835
 836         for (const RowData& r : rows_)
 837                 if (row != &r)
 838                         y += r.height;
 839                 else
 840                         break;
 841
 842         return y;
 843 }
 844
 845 RowData* DecodeTrace::get_row_at_point(const QPoint &point)
 846 {
 847         int y = get_visual_y();
 848
 849         for (RowData& r : rows_) {
 850                 if (!r.currently_visible)
 851                         continue;
 852
 853                 if ((point.y() >= y) && (point.y() < (int)(y + r.height)))
 854                         return &r;
 855
 856                 y += r.height;
 857         }
 858
 859         return nullptr;
 860 }
 861
 862 const QString DecodeTrace::get_annotation_at_point(const QPoint &point)
 863 {
 864         using namespace pv::data::decode;
 865
 866         if (!enabled())
 867                 return QString();
 868
 869         const pair<uint64_t, uint64_t> sample_range =
 870                 get_view_sample_range(point.x(), point.x() + 1);
 871         const RowData* r = get_row_at_point(point);
 872
 873         if (!r)
 874                 return QString();
 875
 876         vector<Annotation> annotations;
 877
 878         decode_signal_->get_annotation_subset(annotations, r->decode_row,
 879                 current_segment_, sample_range.first, sample_range.second);
 880
 881         return (annotations.empty()) ?
 882                 QString() : annotations[0].annotations().front();
 883 }
 884
 885 void DecodeTrace::hover_point_changed(const QPoint &hp)
 886 {
 887         Trace::hover_point_changed(hp);
 888
 889         assert(owner_);
 890
 891         RowData* hover_row = get_row_at_point(hp);
 892
 893         // Row/class visibility button handling
 894         for (RowData& r : rows_)
 895                 r.expand_marker_highlighted = false;
 896
 897         if (hover_row) {
 898                 int row_y = get_row_y(hover_row);
 899                 if ((hp.x() > 0) && (hp.x() < ArrowSize) &&
 900                         (hp.y() > (int)(row_y - ArrowSize)) && (hp.y() < (int)(row_y + ArrowSize)))
 901                         hover_row->expand_marker_highlighted = true;
 902         }
 903
 904         // Tooltip handling
 905         if (hp.x() > 0) {
 906                 QString ann = get_annotation_at_point(hp);
 907
 908                 if (ann.isEmpty()) {
 909                         QToolTip::hideText();
 910                         return;
 911                 }
 912
 913                 QFontMetrics m(QToolTip::font());
 914                 const QRect text_size = m.boundingRect(QRect(), 0, ann);
 915
 916                 // This is OS-specific and unfortunately we can't query it, so
 917                 // use an approximation to at least try to minimize the error.
 918                 const int padding = 8;
 919
 920                 // Make sure the tool tip doesn't overlap with the mouse cursor.
 921                 // If it did, the tool tip would constantly hide and re-appear.
 922                 // We also push it up by one row so that it appears above the
 923                 // decode trace, not below.
 924                 QPoint p = hp;
 925                 p.setX(hp.x() - (text_size.width() / 2) - padding);
 926
 927                 p.setY(get_row_y(hover_row) - hover_row->height - default_row_height_ -
 928                         text_size.height() - padding);
 929
 930                 const View *const view = owner_->view();
 931                 assert(view);
 932                 QToolTip::showText(view->viewport()->mapToGlobal(p), ann);
 933
 934         } else
 935                 QToolTip::hideText();
 936 }
 937
 938 void DecodeTrace::create_decoder_form(int index,
 939         shared_ptr<data::decode::Decoder> &dec, QWidget *parent,
 940         QFormLayout *form)
 941 {
 942         GlobalSettings settings;
 943
 944         assert(dec);
 945         const srd_decoder *const decoder = dec->decoder();
 946         assert(decoder);
 947
 948         const bool decoder_deletable = index > 0;
 949
 950         pv::widgets::DecoderGroupBox *const group =
 951                 new pv::widgets::DecoderGroupBox(
 952                         QString::fromUtf8(decoder->name),
 953                         tr("%1:\n%2").arg(QString::fromUtf8(decoder->longname),
 954                                 QString::fromUtf8(decoder->desc)),
 955                         nullptr, decoder_deletable);
 956         group->set_decoder_visible(dec->shown());
 957
 958         if (decoder_deletable) {
 959                 delete_mapper_.setMapping(group, index);
 960                 connect(group, SIGNAL(delete_decoder()), &delete_mapper_, SLOT(map()));
 961         }
 962
 963         show_hide_mapper_.setMapping(group, index);
 964         connect(group, SIGNAL(show_hide_decoder()),
 965                 &show_hide_mapper_, SLOT(map()));
 966
 967         QFormLayout *const decoder_form = new QFormLayout;
 968         group->add_layout(decoder_form);
 969
 970         const vector<DecodeChannel> channels = decode_signal_->get_channels();
 971
 972         // Add the channels
 973         for (const DecodeChannel& ch : channels) {
 974                 // Ignore channels not part of the decoder we create the form for
 975                 if (ch.decoder_ != dec)
 976                         continue;
 977
 978                 QComboBox *const combo = create_channel_selector(parent, &ch);
 979                 QComboBox *const combo_init_state = create_channel_selector_init_state(parent, &ch);
 980
 981                 channel_id_map_[combo] = ch.id;
 982                 init_state_map_[combo_init_state] = ch.id;
 983
 984                 connect(combo, SIGNAL(currentIndexChanged(int)),
 985                         this, SLOT(on_channel_selected(int)));
 986                 connect(combo_init_state, SIGNAL(currentIndexChanged(int)),
 987                         this, SLOT(on_init_state_changed(int)));
 988
 989                 QHBoxLayout *const hlayout = new QHBoxLayout;
 990                 hlayout->addWidget(combo);
 991                 hlayout->addWidget(combo_init_state);
 992
 993                 if (!settings.value(GlobalSettings::Key_Dec_InitialStateConfigurable).toBool())
 994                         combo_init_state->hide();
 995
 996                 const QString required_flag = ch.is_optional ? QString() : QString("*");
 997                 decoder_form->addRow(tr("<b>%1</b> (%2) %3")
 998                         .arg(ch.name, ch.desc, required_flag), hlayout);
 999         }
1000
1001         // Add the options
1002         shared_ptr<binding::Decoder> binding(
1003                 new binding::Decoder(decode_signal_, dec));
1004         binding->add_properties_to_form(decoder_form, true);
1005
1006         bindings_.push_back(binding);
1007
1008         form->addRow(group);
1009         decoder_forms_.push_back(group);
1010 }
1011
1012 QComboBox* DecodeTrace::create_channel_selector(QWidget *parent, const DecodeChannel *ch)
1013 {
1014         const auto sigs(session_.signalbases());
1015
1016         // Sort signals in natural order
1017         vector< shared_ptr<data::SignalBase> > sig_list(sigs.begin(), sigs.end());
1018         sort(sig_list.begin(), sig_list.end(),
1019                 [](const shared_ptr<data::SignalBase> &a,
1020                 const shared_ptr<data::SignalBase> &b) {
1021                         return strnatcasecmp(a->name().toStdString(),
1022                                 b->name().toStdString()) < 0; });
1023
1024         QComboBox *selector = new QComboBox(parent);
1025
1026         selector->addItem("-", qVariantFromValue((void*)nullptr));
1027
1028         if (!ch->assigned_signal)
1029                 selector->setCurrentIndex(0);
1030
1031         for (const shared_ptr<data::SignalBase> &b : sig_list) {
1032                 assert(b);
1033                 if (b->logic_data() && b->enabled()) {
1034                         selector->addItem(b->name(),
1035                                 qVariantFromValue((void*)b.get()));
1036
1037                         if (ch->assigned_signal == b.get())
1038                                 selector->setCurrentIndex(selector->count() - 1);
1039                 }
1040         }
1041
1042         return selector;
1043 }
1044
1045 QComboBox* DecodeTrace::create_channel_selector_init_state(QWidget *parent,
1046         const DecodeChannel *ch)
1047 {
1048         QComboBox *selector = new QComboBox(parent);
1049
1050         selector->addItem("0", qVariantFromValue((int)SRD_INITIAL_PIN_LOW));
1051         selector->addItem("1", qVariantFromValue((int)SRD_INITIAL_PIN_HIGH));
1052         selector->addItem("X", qVariantFromValue((int)SRD_INITIAL_PIN_SAME_AS_SAMPLE0));
1053
1054         selector->setCurrentIndex(ch->initial_pin_state);
1055
1056         selector->setToolTip("Initial (assumed) pin value before the first sample");
1057
1058         return selector;
1059 }
1060
1061 void DecodeTrace::export_annotations(vector<Annotation> *annotations) const
1062 {
1063         using namespace pv::data::decode;
1064
1065         GlobalSettings settings;
1066         const QString dir = settings.value("MainWindow/SaveDirectory").toString();
1067
1068         const QString file_name = QFileDialog::getSaveFileName(
1069                 owner_->view(), tr("Export annotations"), dir, tr("Text Files (*.txt);;All Files (*)"));
1070
1071         if (file_name.isEmpty())
1072                 return;
1073
1074         QString format = settings.value(GlobalSettings::Key_Dec_ExportFormat).toString();
1075         const QString quote = format.contains("%q") ? "\"" : "";
1076         format = format.remove("%q");
1077
1078         QFile file(file_name);
1079         if (file.open(QIODevice::WriteOnly | QIODevice::Truncate | QIODevice::Text)) {
1080                 QTextStream out_stream(&file);
1081
1082                 for (Annotation &ann : *annotations) {
1083                         const QString sample_range = QString("%1-%2") \
1084                                 .arg(QString::number(ann.start_sample()), QString::number(ann.end_sample()));
1085
1086                         const QString class_name = quote + ann.row()->class_name() + quote;
1087
1088                         QString all_ann_text;
1089                         for (const QString &s : ann.annotations())
1090                                 all_ann_text = all_ann_text + quote + s + quote + ",";
1091                         all_ann_text.chop(1);
1092
1093                         const QString first_ann_text = quote + ann.annotations().front() + quote;
1094
1095                         QString out_text = format;
1096                         out_text = out_text.replace("%s", sample_range);
1097                         out_text = out_text.replace("%d",
1098                                 quote + QString::fromUtf8(ann.row()->decoder()->name()) + quote);
1099                         out_text = out_text.replace("%c", class_name);
1100                         out_text = out_text.replace("%1", first_ann_text);
1101                         out_text = out_text.replace("%a", all_ann_text);
1102                         out_stream << out_text << '\n';
1103                 }
1104
1105                 if (out_stream.status() == QTextStream::Ok)
1106                         return;
1107         }
1108
1109         QMessageBox msg(owner_->view());
1110         msg.setText(tr("Error") + "\n\n" + tr("File %1 could not be written to.").arg(file_name));
1111         msg.setStandardButtons(QMessageBox::Ok);
1112         msg.setIcon(QMessageBox::Warning);
1113         msg.exec();
1114 }
1115
1116 void DecodeTrace::update_rows()
1117 {
1118         lock_guard<mutex> lock(row_modification_mutex_);
1119
1120         QFontMetrics m(QApplication::font());
1121
1122         for (RowData& r : rows_)
1123                 r.exists = false;
1124
1125         for (const Row& decode_row : decode_signal_->get_rows()) {
1126                 // Find row in our list
1127                 auto r_it = find_if(rows_.begin(), rows_.end(),
1128                         [&](RowData& r){ return r.decode_row == decode_row; });
1129
1130                 RowData* r = nullptr;
1131                 if (r_it == rows_.end()) {
1132                         // Row doesn't exist yet, create and append it
1133                         RowData nr;
1134                         nr.decode_row = decode_row;
1135                         nr.height = default_row_height_;
1136                         nr.currently_visible = false;
1137                         nr.expand_marker_highlighted = false;
1138                         nr.expanded = false;
1139
1140                         rows_.push_back(nr);
1141                         r = &rows_.back();
1142                 } else
1143                         r = &(*r_it);
1144
1145                 r->exists = true;
1146
1147                 const int w = m.boundingRect(r->decode_row.title()).width() + RowTitleMargin;
1148                 r->title_width = w;
1149         }
1150
1151         // Remove any rows that no longer exist, obeying that iterators are invalidated
1152         bool any_exists;
1153         do {
1154                 any_exists = false;
1155
1156                 for (unsigned int i = 0; i < rows_.size(); i++)
1157                         if (!rows_[i].exists) {
1158                                 rows_.erase(rows_.begin() + i);
1159                                 any_exists = true;
1160                                 break;
1161                         }
1162         } while (any_exists);
1163 }
1164
1165 void DecodeTrace::on_setting_changed(const QString &key, const QVariant &value)
1166 {
1167         Trace::on_setting_changed(key, value);
1168
1169         if (key == GlobalSettings::Key_Dec_AlwaysShowAllRows) {
1170                 max_visible_rows_ = 0;
1171                 always_show_all_rows_ = value.toBool();
1172         }
1173 }
1174
1175 void DecodeTrace::on_new_annotations()
1176 {
1177         if (!delayed_trace_updater_.isActive())
1178                 delayed_trace_updater_.start();
1179 }
1180
1181 void DecodeTrace::on_delayed_trace_update()
1182 {
1183         if (owner_)
1184                 owner_->row_item_appearance_changed(false, true);
1185 }
1186
1187 void DecodeTrace::on_decode_reset()
1188 {
1189         max_visible_rows_ = 0;
1190         update_rows();
1191
1192         if (owner_)
1193                 owner_->row_item_appearance_changed(false, true);
1194 }
1195
1196 void DecodeTrace::on_decode_finished()
1197 {
1198         if (owner_)
1199                 owner_->row_item_appearance_changed(false, true);
1200 }
1201
1202 void DecodeTrace::on_pause_decode()
1203 {
1204         if (decode_signal_->is_paused())
1205                 decode_signal_->resume_decode();
1206         else
1207                 decode_signal_->pause_decode();
1208 }
1209
1210 void DecodeTrace::delete_pressed()
1211 {
1212         on_delete();
1213 }
1214
1215 void DecodeTrace::on_delete()
1216 {
1217         session_.remove_decode_signal(decode_signal_);
1218 }
1219
1220 void DecodeTrace::on_channel_selected(int)
1221 {
1222         QComboBox *cb = qobject_cast<QComboBox*>(QObject::sender());
1223
1224         // Determine signal that was selected
1225         const data::SignalBase *signal =
1226                 (data::SignalBase*)cb->itemData(cb->currentIndex()).value<void*>();
1227
1228         // Determine decode channel ID this combo box is the channel selector for
1229         const uint16_t id = channel_id_map_.at(cb);
1230
1231         decode_signal_->assign_signal(id, signal);
1232 }
1233
1234 void DecodeTrace::on_channels_updated()
1235 {
1236         if (owner_)
1237                 owner_->row_item_appearance_changed(false, true);
1238 }
1239
1240 void DecodeTrace::on_init_state_changed(int)
1241 {
1242         QComboBox *cb = qobject_cast<QComboBox*>(QObject::sender());
1243
1244         // Determine inital pin state that was selected
1245         int init_state = cb->itemData(cb->currentIndex()).value<int>();
1246
1247         // Determine decode channel ID this combo box is the channel selector for
1248         const uint16_t id = init_state_map_.at(cb);
1249
1250         decode_signal_->set_initial_pin_state(id, init_state);
1251 }
1252
1253 void DecodeTrace::on_stack_decoder(srd_decoder *decoder)
1254 {
1255         decode_signal_->stack_decoder(decoder);
1256         update_rows();
1257
1258         create_popup_form();
1259 }
1260
1261 void DecodeTrace::on_delete_decoder(int index)
1262 {
1263         decode_signal_->remove_decoder(index);
1264         update_rows();
1265
1266         // Force re-calculation of the trace height
1267         max_visible_rows_ = 0;
1268         owner_->extents_changed(false, true);
1269
1270         create_popup_form();
1271 }
1272
1273 void DecodeTrace::on_show_hide_decoder(int index)
1274 {
1275         const bool state = decode_signal_->toggle_decoder_visibility(index);
1276
1277         assert(index < (int)decoder_forms_.size());
1278         decoder_forms_[index]->set_decoder_visible(state);
1279
1280         if (!state) {
1281                 // Force re-calculation of the trace height, see paint_mid()
1282                 max_visible_rows_ = 0;
1283                 owner_->extents_changed(false, true);
1284         }
1285
1286         if (owner_)
1287                 owner_->row_item_appearance_changed(false, true);
1288 }
1289
1290 void DecodeTrace::on_copy_annotation_to_clipboard()
1291 {
1292         using namespace pv::data::decode;
1293
1294         if (!selected_row_)
1295                 return;
1296
1297         vector<Annotation> *annotations = new vector<Annotation>();
1298
1299         decode_signal_->get_annotation_subset(*annotations, *selected_row_,
1300                 current_segment_, selected_sample_range_.first, selected_sample_range_.first);
1301
1302         if (annotations->empty())
1303                 return;
1304
1305         QClipboard *clipboard = QApplication::clipboard();
1306         clipboard->setText(annotations->front().annotations().front(), QClipboard::Clipboard);
1307
1308         if (clipboard->supportsSelection())
1309                 clipboard->setText(annotations->front().annotations().front(), QClipboard::Selection);
1310
1311         delete annotations;
1312 }
1313
1314 void DecodeTrace::on_export_row()
1315 {
1316         selected_sample_range_ = make_pair(0, numeric_limits<uint64_t>::max());
1317         on_export_row_from_here();
1318 }
1319
1320 void DecodeTrace::on_export_all_rows()
1321 {
1322         selected_sample_range_ = make_pair(0, numeric_limits<uint64_t>::max());
1323         on_export_all_rows_from_here();
1324 }
1325
1326 void DecodeTrace::on_export_row_with_cursor()
1327 {
1328         const View *view = owner_->view();
1329         assert(view);
1330
1331         if (!view->cursors()->enabled())
1332                 return;
1333
1334         const double samplerate = session_.get_samplerate();
1335
1336         const pv::util::Timestamp& start_time = view->cursors()->first()->time();
1337         const pv::util::Timestamp& end_time = view->cursors()->second()->time();
1338
1339         const uint64_t start_sample = (uint64_t)max(
1340                 0.0, start_time.convert_to<double>() * samplerate);
1341         const uint64_t end_sample = (uint64_t)max(
1342                 0.0, end_time.convert_to<double>() * samplerate);
1343
1344         // Are both cursors negative and thus were clamped to 0?
1345         if ((start_sample == 0) && (end_sample == 0))
1346                 return;
1347
1348         selected_sample_range_ = make_pair(start_sample, end_sample);
1349         on_export_row_from_here();
1350 }
1351
1352 void DecodeTrace::on_export_all_rows_with_cursor()
1353 {
1354         const View *view = owner_->view();
1355         assert(view);
1356
1357         if (!view->cursors()->enabled())
1358                 return;
1359
1360         const double samplerate = session_.get_samplerate();
1361
1362         const pv::util::Timestamp& start_time = view->cursors()->first()->time();
1363         const pv::util::Timestamp& end_time = view->cursors()->second()->time();
1364
1365         const uint64_t start_sample = (uint64_t)max(
1366                 0.0, start_time.convert_to<double>() * samplerate);
1367         const uint64_t end_sample = (uint64_t)max(
1368                 0.0, end_time.convert_to<double>() * samplerate);
1369
1370         // Are both cursors negative and thus were clamped to 0?
1371         if ((start_sample == 0) && (end_sample == 0))
1372                 return;
1373
1374         selected_sample_range_ = make_pair(start_sample, end_sample);
1375         on_export_all_rows_from_here();
1376 }
1377
1378 void DecodeTrace::on_export_row_from_here()
1379 {
1380         using namespace pv::data::decode;
1381
1382         if (!selected_row_)
1383                 return;
1384
1385         vector<Annotation> *annotations = new vector<Annotation>();
1386
1387         decode_signal_->get_annotation_subset(*annotations, *selected_row_,
1388                 current_segment_, selected_sample_range_.first, selected_sample_range_.second);
1389
1390         if (annotations->empty())
1391                 return;
1392
1393         export_annotations(annotations);
1394         delete annotations;
1395 }
1396
1397 void DecodeTrace::on_export_all_rows_from_here()
1398 {
1399         using namespace pv::data::decode;
1400
1401         vector<Annotation> *annotations = new vector<Annotation>();
1402
1403         decode_signal_->get_annotation_subset(*annotations, current_segment_,
1404                         selected_sample_range_.first, selected_sample_range_.second);
1405
1406         if (!annotations->empty())
1407                 export_annotations(annotations);
1408
1409         delete annotations;
1410 }
1411
1412 } // namespace trace
1413 } // namespace views
1414 } // namespace pv