pv/view/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, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 extern "C" {
  22 #include <libsigrokdecode/libsigrokdecode.h>
  23 }
  24
  25 #include <extdef.h>
  26
  27 #include <tuple>
  28
  29 #include <boost/functional/hash.hpp>
  30
  31 #include <QAction>
  32 #include <QApplication>
  33 #include <QComboBox>
  34 #include <QFormLayout>
  35 #include <QLabel>
  36 #include <QMenu>
  37 #include <QPushButton>
  38 #include <QToolTip>
  39
  40 #include "decodetrace.h"
  41
  42 #include <pv/sigsession.h>
  43 #include <pv/data/decoderstack.h>
  44 #include <pv/data/decode/decoder.h>
  45 #include <pv/data/logic.h>
  46 #include <pv/data/logicsnapshot.h>
  47 #include <pv/data/decode/annotation.h>
  48 #include <pv/view/logicsignal.h>
  49 #include <pv/view/view.h>
  50 #include <pv/view/viewport.h>
  51 #include <pv/widgets/decodergroupbox.h>
  52 #include <pv/widgets/decodermenu.h>
  53
  54 using std::dynamic_pointer_cast;
  55 using std::list;
  56 using std::make_pair;
  57 using std::max;
  58 using std::map;
  59 using std::min;
  60 using std::pair;
  61 using std::shared_ptr;
  62 using std::tie;
  63 using std::vector;
  64
  65 namespace pv {
  66 namespace view {
  67
  68 const QColor DecodeTrace::DecodeColours[4] = {
  69         QColor(0xEF, 0x29, 0x29),       // Red
  70         QColor(0xFC, 0xE9, 0x4F),       // Yellow
  71         QColor(0x8A, 0xE2, 0x34),       // Green
  72         QColor(0x72, 0x9F, 0xCF)        // Blue
  73 };
  74
  75 const QColor DecodeTrace::ErrorBgColour = QColor(0xEF, 0x29, 0x29);
  76 const QColor DecodeTrace::NoDecodeColour = QColor(0x88, 0x8A, 0x85);
  77
  78 const int DecodeTrace::ArrowSize = 4;
  79 const double DecodeTrace::EndCapWidth = 5;
  80 const int DecodeTrace::DrawPadding = 100;
  81
  82 const QColor DecodeTrace::Colours[16] = {
  83         QColor(0xEF, 0x29, 0x29),
  84         QColor(0xF6, 0x6A, 0x32),
  85         QColor(0xFC, 0xAE, 0x3E),
  86         QColor(0xFB, 0xCA, 0x47),
  87         QColor(0xFC, 0xE9, 0x4F),
  88         QColor(0xCD, 0xF0, 0x40),
  89         QColor(0x8A, 0xE2, 0x34),
  90         QColor(0x4E, 0xDC, 0x44),
  91         QColor(0x55, 0xD7, 0x95),
  92         QColor(0x64, 0xD1, 0xD2),
  93         QColor(0x72, 0x9F, 0xCF),
  94         QColor(0xD4, 0x76, 0xC4),
  95         QColor(0x9D, 0x79, 0xB9),
  96         QColor(0xAD, 0x7F, 0xA8),
  97         QColor(0xC2, 0x62, 0x9B),
  98         QColor(0xD7, 0x47, 0x6F)
  99 };
 100
 101 const QColor DecodeTrace::OutlineColours[16] = {
 102         QColor(0x77, 0x14, 0x14),
 103         QColor(0x7B, 0x35, 0x19),
 104         QColor(0x7E, 0x57, 0x1F),
 105         QColor(0x7D, 0x65, 0x23),
 106         QColor(0x7E, 0x74, 0x27),
 107         QColor(0x66, 0x78, 0x20),
 108         QColor(0x45, 0x71, 0x1A),
 109         QColor(0x27, 0x6E, 0x22),
 110         QColor(0x2A, 0x6B, 0x4A),
 111         QColor(0x32, 0x68, 0x69),
 112         QColor(0x39, 0x4F, 0x67),
 113         QColor(0x6A, 0x3B, 0x62),
 114         QColor(0x4E, 0x3C, 0x5C),
 115         QColor(0x56, 0x3F, 0x54),
 116         QColor(0x61, 0x31, 0x4D),
 117         QColor(0x6B, 0x23, 0x37)
 118 };
 119
 120 DecodeTrace::DecodeTrace(pv::SigSession &session,
 121         std::shared_ptr<pv::data::DecoderStack> decoder_stack, int index) :
 122         Trace(QString::fromUtf8(
 123                 decoder_stack->stack().front()->decoder()->name)),
 124         _session(session),
 125         _decoder_stack(decoder_stack),
 126         _text_height(0),
 127         _row_height(0),
 128         _delete_mapper(this),
 129         _show_hide_mapper(this)
 130 {
 131         assert(_decoder_stack);
 132
 133         _colour = DecodeColours[index % countof(DecodeColours)];
 134
 135         connect(_decoder_stack.get(), SIGNAL(new_decode_data()),
 136                 this, SLOT(on_new_decode_data()));
 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
 143 bool DecodeTrace::enabled() const
 144 {
 145         return true;
 146 }
 147
 148 const std::shared_ptr<pv::data::DecoderStack>& DecodeTrace::decoder() const
 149 {
 150         return _decoder_stack;
 151 }
 152
 153 void DecodeTrace::paint_back(QPainter &p, int left, int right)
 154 {
 155         Trace::paint_back(p, left, right);
 156         paint_axis(p, get_y(), left, right);
 157 }
 158
 159 void DecodeTrace::paint_mid(QPainter &p, int left, int right)
 160 {
 161         using namespace pv::data::decode;
 162
 163         QFontMetrics m(QApplication::font());
 164         _text_height = m.boundingRect(QRect(), 0, "Tg").height();
 165         _row_height = (_text_height * 6) / 4;
 166         const int annotation_height = (_text_height * 5) / 4;
 167
 168         assert(_decoder_stack);
 169         const QString err = _decoder_stack->error_message();
 170         if (!err.isEmpty())
 171         {
 172                 draw_unresolved_period(p, annotation_height, left, right);
 173                 draw_error(p, err, left, right);
 174                 return;
 175         }
 176
 177         // Iterate through the rows
 178         int y = get_y();
 179         pair<uint64_t, uint64_t> sample_range = get_sample_range(left, right);
 180
 181         assert(_decoder_stack);
 182         const vector<Row> rows(_decoder_stack->get_visible_rows());
 183
 184         _visible_rows.clear();
 185         for (size_t i = 0; i < rows.size(); i++)
 186         {
 187                 const Row &row = rows[i];
 188
 189                 size_t base_colour = 0x13579BDF;
 190                 boost::hash_combine(base_colour, this);
 191                 boost::hash_combine(base_colour, row.decoder());
 192                 boost::hash_combine(base_colour, row.row());
 193                 base_colour >>= 16;
 194
 195                 vector<Annotation> annotations;
 196                 _decoder_stack->get_annotation_subset(annotations, row,
 197                         sample_range.first, sample_range.second);
 198                 if (!annotations.empty()) {
 199                         for (const Annotation &a : annotations)
 200                                 draw_annotation(a, p, get_text_colour(),
 201                                         annotation_height, left, right, y,
 202                                         base_colour);
 203                         y += _row_height;
 204
 205                         _visible_rows.push_back(rows[i]);
 206                 }
 207         }
 208
 209         // Draw the hatching
 210         draw_unresolved_period(p, annotation_height, left, right);
 211 }
 212
 213 void DecodeTrace::paint_fore(QPainter &p, int left, int right)
 214 {
 215         using namespace pv::data::decode;
 216
 217         (void)right;
 218
 219         assert(_row_height);
 220
 221         for (size_t i = 0; i < _visible_rows.size(); i++)
 222         {
 223                 const int y = i * _row_height + get_y();
 224
 225                 p.setPen(QPen(Qt::NoPen));
 226                 p.setBrush(QApplication::palette().brush(QPalette::WindowText));
 227
 228                 if (i != 0)
 229                 {
 230                         const QPointF points[] = {
 231                                 QPointF(left, y - ArrowSize),
 232                                 QPointF(left + ArrowSize, y),
 233                                 QPointF(left, y + ArrowSize)
 234                         };
 235                         p.drawPolygon(points, countof(points));
 236                 }
 237
 238                 const QRect r(left + ArrowSize * 2, y - _row_height / 2,
 239                         right - left, _row_height);
 240                 const QString h(_visible_rows[i].title());
 241                 const int f = Qt::AlignLeft | Qt::AlignVCenter |
 242                         Qt::TextDontClip;
 243
 244                 // Draw the outline
 245                 p.setPen(QApplication::palette().color(QPalette::Base));
 246                 for (int dx = -1; dx <= 1; dx++)
 247                         for (int dy = -1; dy <= 1; dy++)
 248                                 if (dx != 0 && dy != 0)
 249                                         p.drawText(r.translated(dx, dy), f, h);
 250
 251                 // Draw the text
 252                 p.setPen(QApplication::palette().color(QPalette::WindowText));
 253                 p.drawText(r, f, h);
 254         }
 255 }
 256
 257 void DecodeTrace::populate_popup_form(QWidget *parent, QFormLayout *form)
 258 {
 259         using pv::data::decode::Decoder;
 260
 261         assert(form);
 262         assert(parent);
 263         assert(_decoder_stack);
 264
 265         // Add the standard options
 266         Trace::populate_popup_form(parent, form);
 267
 268         // Add the decoder options
 269         _bindings.clear();
 270         _channel_selectors.clear();
 271         _decoder_forms.clear();
 272
 273         const list< shared_ptr<Decoder> >& stack = _decoder_stack->stack();
 274
 275         if (stack.empty())
 276         {
 277                 QLabel *const l = new QLabel(
 278                         tr("<p><i>No decoders in the stack</i></p>"));
 279                 l->setAlignment(Qt::AlignCenter);
 280                 form->addRow(l);
 281         }
 282         else
 283         {
 284                 auto iter = stack.cbegin();
 285                 for (int i = 0; i < (int)stack.size(); i++, iter++) {
 286                         shared_ptr<Decoder> dec(*iter);
 287                         create_decoder_form(i, dec, parent, form);
 288                 }
 289
 290                 form->addRow(new QLabel(
 291                         tr("<i>* Required channels</i>"), parent));
 292         }
 293
 294         // Add stacking button
 295         pv::widgets::DecoderMenu *const decoder_menu =
 296                 new pv::widgets::DecoderMenu(parent);
 297         connect(decoder_menu, SIGNAL(decoder_selected(srd_decoder*)),
 298                 this, SLOT(on_stack_decoder(srd_decoder*)));
 299
 300         QPushButton *const stack_button =
 301                 new QPushButton(tr("Stack Decoder"), parent);
 302         stack_button->setMenu(decoder_menu);
 303
 304         QHBoxLayout *stack_button_box = new QHBoxLayout;
 305         stack_button_box->addWidget(stack_button, 0, Qt::AlignRight);
 306         form->addRow(stack_button_box);
 307 }
 308
 309 QMenu* DecodeTrace::create_context_menu(QWidget *parent)
 310 {
 311         QMenu *const menu = Trace::create_context_menu(parent);
 312
 313         menu->addSeparator();
 314
 315         QAction *const del = new QAction(tr("Delete"), this);
 316         del->setShortcuts(QKeySequence::Delete);
 317         connect(del, SIGNAL(triggered()), this, SLOT(on_delete()));
 318         menu->addAction(del);
 319
 320         return menu;
 321 }
 322
 323 void DecodeTrace::draw_annotation(const pv::data::decode::Annotation &a,
 324         QPainter &p, QColor text_color, int h, int left, int right, int y,
 325         size_t base_colour) const
 326 {
 327         double samples_per_pixel, pixels_offset;
 328         tie(pixels_offset, samples_per_pixel) =
 329                 get_pixels_offset_samples_per_pixel();
 330
 331         const double start = a.start_sample() / samples_per_pixel -
 332                 pixels_offset;
 333         const double end = a.end_sample() / samples_per_pixel -
 334                 pixels_offset;
 335
 336         const size_t colour = (base_colour + a.format()) % countof(Colours);
 337         const QColor &fill = Colours[colour];
 338         const QColor &outline = OutlineColours[colour];
 339
 340         if (start > right + DrawPadding || end < left - DrawPadding)
 341                 return;
 342
 343         if (a.start_sample() == a.end_sample())
 344                 draw_instant(a, p, fill, outline, text_color, h,
 345                         start, y);
 346         else
 347                 draw_range(a, p, fill, outline, text_color, h,
 348                         start, end, y);
 349 }
 350
 351 void DecodeTrace::draw_instant(const pv::data::decode::Annotation &a, QPainter &p,
 352         QColor fill, QColor outline, QColor text_color, int h, double x, int y) const
 353 {
 354         const QString text = a.annotations().empty() ?
 355                 QString() : a.annotations().back();
 356         const double w = min((double)p.boundingRect(QRectF(), 0, text).width(),
 357                 0.0) + h;
 358         const QRectF rect(x - w / 2, y - h / 2, w, h);
 359
 360         p.setPen(outline);
 361         p.setBrush(fill);
 362         p.drawRoundedRect(rect, h / 2, h / 2);
 363
 364         p.setPen(text_color);
 365         p.drawText(rect, Qt::AlignCenter | Qt::AlignVCenter, text);
 366 }
 367
 368 void DecodeTrace::draw_range(const pv::data::decode::Annotation &a, QPainter &p,
 369         QColor fill, QColor outline, QColor text_color, int h, double start,
 370         double end, int y) const
 371 {
 372         const double top = y + .5 - h / 2;
 373         const double bottom = y + .5 + h / 2;
 374         const vector<QString> annotations = a.annotations();
 375
 376         p.setPen(outline);
 377         p.setBrush(fill);
 378
 379         // If the two ends are within 1 pixel, draw a vertical line
 380         if (start + 1.0 > end)
 381         {
 382                 p.drawLine(QPointF(start, top), QPointF(start, bottom));
 383                 return;
 384         }
 385
 386         const double cap_width = min((end - start) / 4, EndCapWidth);
 387
 388         QPointF pts[] = {
 389                 QPointF(start, y + .5f),
 390                 QPointF(start + cap_width, top),
 391                 QPointF(end - cap_width, top),
 392                 QPointF(end, y + .5f),
 393                 QPointF(end - cap_width, bottom),
 394                 QPointF(start + cap_width, bottom)
 395         };
 396
 397         p.drawConvexPolygon(pts, countof(pts));
 398
 399         if (annotations.empty())
 400                 return;
 401
 402         QRectF rect(start + cap_width, y - h / 2,
 403                 end - start - cap_width * 2, h);
 404         if (rect.width() <= 4)
 405                 return;
 406
 407         p.setPen(text_color);
 408
 409         // Try to find an annotation that will fit
 410         QString best_annotation;
 411         int best_width = 0;
 412
 413         for (const QString &a : annotations) {
 414                 const int w = p.boundingRect(QRectF(), 0, a).width();
 415                 if (w <= rect.width() && w > best_width)
 416                         best_annotation = a, best_width = w;
 417         }
 418
 419         if (best_annotation.isEmpty())
 420                 best_annotation = annotations.back();
 421
 422         // If not ellide the last in the list
 423         p.drawText(rect, Qt::AlignCenter, p.fontMetrics().elidedText(
 424                 best_annotation, Qt::ElideRight, rect.width()));
 425 }
 426
 427 void DecodeTrace::draw_error(QPainter &p, const QString &message,
 428         int left, int right)
 429 {
 430         const int y = get_y();
 431
 432         p.setPen(ErrorBgColour.darker());
 433         p.setBrush(ErrorBgColour);
 434
 435         const QRectF bounding_rect =
 436                 QRectF(left, INT_MIN / 2 + y, right - left, INT_MAX);
 437         const QRectF text_rect = p.boundingRect(bounding_rect,
 438                 Qt::AlignCenter, message);
 439         const float r = text_rect.height() / 4;
 440
 441         p.drawRoundedRect(text_rect.adjusted(-r, -r, r, r), r, r,
 442                 Qt::AbsoluteSize);
 443
 444         p.setPen(get_text_colour());
 445         p.drawText(text_rect, message);
 446 }
 447
 448 void DecodeTrace::draw_unresolved_period(QPainter &p, int h, int left,
 449         int right) const
 450 {
 451         using namespace pv::data;
 452         using pv::data::decode::Decoder;
 453
 454         double samples_per_pixel, pixels_offset;
 455
 456         assert(_decoder_stack);
 457
 458         shared_ptr<Logic> data;
 459         shared_ptr<LogicSignal> logic_signal;
 460
 461         const list< shared_ptr<Decoder> > &stack = _decoder_stack->stack();
 462
 463         // We get the logic data of the first channel in the list.
 464         // This works because we are currently assuming all
 465         // LogicSignals have the same data/snapshot
 466         for (const shared_ptr<Decoder> &dec : stack)
 467                 if (dec && !dec->channels().empty() &&
 468                         ((logic_signal = (*dec->channels().begin()).second)) &&
 469                         ((data = logic_signal->logic_data())))
 470                         break;
 471
 472         if (!data || data->get_snapshots().empty())
 473                 return;
 474
 475         const shared_ptr<LogicSnapshot> snapshot =
 476                 data->get_snapshots().front();
 477         assert(snapshot);
 478         const int64_t sample_count = (int64_t)snapshot->get_sample_count();
 479         if (sample_count == 0)
 480                 return;
 481
 482         const int64_t samples_decoded = _decoder_stack->samples_decoded();
 483         if (sample_count == samples_decoded)
 484                 return;
 485
 486         const int y = get_y();
 487
 488         tie(pixels_offset, samples_per_pixel) =
 489                 get_pixels_offset_samples_per_pixel();
 490
 491         const double start = max(samples_decoded /
 492                 samples_per_pixel - pixels_offset, left - 1.0);
 493         const double end = min(sample_count / samples_per_pixel -
 494                 pixels_offset, right + 1.0);
 495         const QRectF no_decode_rect(start, y - h/2 + 0.5, end - start, h);
 496
 497         p.setPen(QPen(Qt::NoPen));
 498         p.setBrush(Qt::white);
 499         p.drawRect(no_decode_rect);
 500
 501         p.setPen(NoDecodeColour);
 502         p.setBrush(QBrush(NoDecodeColour, Qt::Dense6Pattern));
 503         p.drawRect(no_decode_rect);
 504 }
 505
 506 pair<double, double> DecodeTrace::get_pixels_offset_samples_per_pixel() const
 507 {
 508         assert(_owner);
 509         assert(_decoder_stack);
 510
 511         const View *view = _owner->view();
 512         assert(view);
 513
 514         const double scale = view->scale();
 515         assert(scale > 0);
 516
 517         const double pixels_offset =
 518                 (view->offset() - _decoder_stack->get_start_time()) / scale;
 519
 520         double samplerate = _decoder_stack->samplerate();
 521
 522         // Show sample rate as 1Hz when it is unknown
 523         if (samplerate == 0.0)
 524                 samplerate = 1.0;
 525
 526         return make_pair(pixels_offset, samplerate * scale);
 527 }
 528
 529 pair<uint64_t, uint64_t> DecodeTrace::get_sample_range(
 530         int x_start, int x_end) const
 531 {
 532         double samples_per_pixel, pixels_offset;
 533         tie(pixels_offset, samples_per_pixel) =
 534                 get_pixels_offset_samples_per_pixel();
 535
 536         const uint64_t start = (uint64_t)max(
 537                 (x_start + pixels_offset) * samples_per_pixel, 0.0);
 538         const uint64_t end = (uint64_t)max(
 539                 (x_end + pixels_offset) * samples_per_pixel, 0.0);
 540
 541         return make_pair(start, end);
 542 }
 543
 544 int DecodeTrace::get_row_at_point(const QPoint &point)
 545 {
 546         if (!_row_height)
 547                 return -1;
 548
 549         const int row = (point.y() - get_y() + _row_height / 2) / _row_height;
 550         if (row < 0 || row >= (int)_visible_rows.size())
 551                 return -1;
 552
 553         return row;
 554 }
 555
 556 const QString DecodeTrace::get_annotation_at_point(const QPoint &point)
 557 {
 558         using namespace pv::data::decode;
 559
 560         if (!enabled())
 561                 return QString();
 562
 563         const pair<uint64_t, uint64_t> sample_range =
 564                 get_sample_range(point.x(), point.x() + 1);
 565         const int row = get_row_at_point(point);
 566         if (row < 0)
 567                 return QString();
 568
 569         vector<pv::data::decode::Annotation> annotations;
 570
 571         assert(_decoder_stack);
 572         _decoder_stack->get_annotation_subset(annotations, _visible_rows[row],
 573                 sample_range.first, sample_range.second);
 574
 575         return (annotations.empty()) ?
 576                 QString() : annotations[0].annotations().front();
 577 }
 578
 579 void DecodeTrace::hide_hover_annotation()
 580 {
 581         QToolTip::hideText();
 582 }
 583
 584 void DecodeTrace::hover_point_changed()
 585 {
 586         assert(_owner);
 587
 588         const View *const view = _owner->view();
 589         assert(view);
 590
 591         QPoint hp = view->hover_point();
 592         QString ann = get_annotation_at_point(hp);
 593
 594         assert(view);
 595         assert(_row_height);
 596
 597         if (ann.isEmpty()) {
 598                 hide_hover_annotation();
 599                 return;
 600         }
 601
 602         const int hover_row = get_row_at_point(hp);
 603
 604         QFontMetrics m(QToolTip::font());
 605         const QRect text_size = m.boundingRect(QRect(), 0, ann);
 606
 607         // This is OS-specific and unfortunately we can't query it, so
 608         // use an approximation to at least try to minimize the error.
 609         const int padding = 8;
 610
 611         // Make sure the tool tip doesn't overlap with the mouse cursor.
 612         // If it did, the tool tip would constantly hide and re-appear.
 613         // We also push it up by one row so that it appears above the
 614         // decode trace, not below.
 615         hp.setX(hp.x() - (text_size.width() / 2) - padding);
 616
 617         hp.setY(get_y() - (_row_height / 2) + (hover_row * _row_height)
 618                 - _row_height - text_size.height());
 619
 620         QToolTip::showText(view->viewport()->mapToGlobal(hp), ann);
 621 }
 622
 623 void DecodeTrace::create_decoder_form(int index,
 624         shared_ptr<data::decode::Decoder> &dec, QWidget *parent,
 625         QFormLayout *form)
 626 {
 627         const GSList *l;
 628
 629         assert(dec);
 630         const srd_decoder *const decoder = dec->decoder();
 631         assert(decoder);
 632
 633         pv::widgets::DecoderGroupBox *const group =
 634                 new pv::widgets::DecoderGroupBox(
 635                         QString::fromUtf8(decoder->name));
 636         group->set_decoder_visible(dec->shown());
 637
 638         _delete_mapper.setMapping(group, index);
 639         connect(group, SIGNAL(delete_decoder()), &_delete_mapper, SLOT(map()));
 640
 641         _show_hide_mapper.setMapping(group, index);
 642         connect(group, SIGNAL(show_hide_decoder()),
 643                 &_show_hide_mapper, SLOT(map()));
 644
 645         QFormLayout *const decoder_form = new QFormLayout;
 646         group->add_layout(decoder_form);
 647
 648         // Add the mandatory channels
 649         for(l = decoder->channels; l; l = l->next) {
 650                 const struct srd_channel *const pdch =
 651                         (struct srd_channel *)l->data;
 652                 QComboBox *const combo = create_channel_selector(parent, dec, pdch);
 653                 connect(combo, SIGNAL(currentIndexChanged(int)),
 654                         this, SLOT(on_channel_selected(int)));
 655                 decoder_form->addRow(tr("<b>%1</b> (%2) *")
 656                         .arg(QString::fromUtf8(pdch->name))
 657                         .arg(QString::fromUtf8(pdch->desc)), combo);
 658
 659                 const ChannelSelector s = {combo, dec, pdch};
 660                 _channel_selectors.push_back(s);
 661         }
 662
 663         // Add the optional channels
 664         for(l = decoder->opt_channels; l; l = l->next) {
 665                 const struct srd_channel *const pdch =
 666                         (struct srd_channel *)l->data;
 667                 QComboBox *const combo = create_channel_selector(parent, dec, pdch);
 668                 connect(combo, SIGNAL(currentIndexChanged(int)),
 669                         this, SLOT(on_channel_selected(int)));
 670                 decoder_form->addRow(tr("<b>%1</b> (%2)")
 671                         .arg(QString::fromUtf8(pdch->name))
 672                         .arg(QString::fromUtf8(pdch->desc)), combo);
 673
 674                 const ChannelSelector s = {combo, dec, pdch};
 675                 _channel_selectors.push_back(s);
 676         }
 677
 678         // Add the options
 679         shared_ptr<prop::binding::DecoderOptions> binding(
 680                 new prop::binding::DecoderOptions(_decoder_stack, dec));
 681         binding->add_properties_to_form(decoder_form, true);
 682
 683         _bindings.push_back(binding);
 684
 685         form->addRow(group);
 686         _decoder_forms.push_back(group);
 687 }
 688
 689 QComboBox* DecodeTrace::create_channel_selector(
 690         QWidget *parent, const shared_ptr<data::decode::Decoder> &dec,
 691         const srd_channel *const pdch)
 692 {
 693         assert(dec);
 694
 695         const vector< shared_ptr<Signal> > sigs = _session.get_signals();
 696
 697         assert(_decoder_stack);
 698         const auto channel_iter = dec->channels().find(pdch);
 699
 700         QComboBox *selector = new QComboBox(parent);
 701
 702         selector->addItem("-", qVariantFromValue((void*)NULL));
 703
 704         if (channel_iter == dec->channels().end())
 705                 selector->setCurrentIndex(0);
 706
 707         for(size_t i = 0; i < sigs.size(); i++) {
 708                 const shared_ptr<view::Signal> s(sigs[i]);
 709                 assert(s);
 710
 711                 if (dynamic_pointer_cast<LogicSignal>(s) && s->enabled())
 712                 {
 713                         selector->addItem(s->name(),
 714                                 qVariantFromValue((void*)s.get()));
 715                         if ((*channel_iter).second == s)
 716                                 selector->setCurrentIndex(i + 1);
 717                 }
 718         }
 719
 720         return selector;
 721 }
 722
 723 void DecodeTrace::commit_decoder_channels(shared_ptr<data::decode::Decoder> &dec)
 724 {
 725         assert(dec);
 726
 727         map<const srd_channel*, shared_ptr<LogicSignal> > channel_map;
 728         const vector< shared_ptr<Signal> > sigs = _session.get_signals();
 729
 730         for (const ChannelSelector &s : _channel_selectors)
 731         {
 732                 if(s._decoder != dec)
 733                         break;
 734
 735                 const LogicSignal *const selection =
 736                         (LogicSignal*)s._combo->itemData(
 737                                 s._combo->currentIndex()).value<void*>();
 738
 739                 for (shared_ptr<Signal> sig : sigs)
 740                         if(sig.get() == selection) {
 741                                 channel_map[s._pdch] =
 742                                         dynamic_pointer_cast<LogicSignal>(sig);
 743                                 break;
 744                         }
 745         }
 746
 747         dec->set_channels(channel_map);
 748 }
 749
 750 void DecodeTrace::commit_channels()
 751 {
 752         assert(_decoder_stack);
 753         for (shared_ptr<data::decode::Decoder> dec : _decoder_stack->stack())
 754                 commit_decoder_channels(dec);
 755
 756         _decoder_stack->begin_decode();
 757 }
 758
 759 void DecodeTrace::on_new_decode_data()
 760 {
 761         if (_owner)
 762                 _owner->update_viewport();
 763 }
 764
 765 void DecodeTrace::delete_pressed()
 766 {
 767         on_delete();
 768 }
 769
 770 void DecodeTrace::on_delete()
 771 {
 772         _session.remove_decode_signal(this);
 773 }
 774
 775 void DecodeTrace::on_channel_selected(int)
 776 {
 777         commit_channels();
 778 }
 779
 780 void DecodeTrace::on_stack_decoder(srd_decoder *decoder)
 781 {
 782         assert(decoder);
 783         assert(_decoder_stack);
 784         _decoder_stack->push(shared_ptr<data::decode::Decoder>(
 785                 new data::decode::Decoder(decoder)));
 786         _decoder_stack->begin_decode();
 787
 788         create_popup_form();
 789 }
 790
 791 void DecodeTrace::on_delete_decoder(int index)
 792 {
 793         _decoder_stack->remove(index);
 794
 795         // Update the popup
 796         create_popup_form();
 797
 798         _decoder_stack->begin_decode();
 799 }
 800
 801 void DecodeTrace::on_show_hide_decoder(int index)
 802 {
 803         using pv::data::decode::Decoder;
 804
 805         const list< shared_ptr<Decoder> > stack(_decoder_stack->stack());
 806
 807         // Find the decoder in the stack
 808         auto iter = stack.cbegin();
 809         for(int i = 0; i < index; i++, iter++)
 810                 assert(iter != stack.end());
 811
 812         shared_ptr<Decoder> dec = *iter;
 813         assert(dec);
 814
 815         const bool show = !dec->shown();
 816         dec->show(show);
 817
 818         assert(index < (int)_decoder_forms.size());
 819         _decoder_forms[index]->set_decoder_visible(show);
 820
 821         _owner->update_viewport();
 822 }
 823
 824 } // namespace view
 825 } // namespace pv