2 * This file is part of the PulseView project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
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.
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.
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/>.
28 #include <QApplication>
31 #include <QFormLayout>
32 #include <QGridLayout>
36 #include "analogsignal.hpp"
37 #include "logicsignal.hpp"
40 #include "pv/data/analog.hpp"
41 #include "pv/data/analogsegment.hpp"
42 #include "pv/data/logic.hpp"
43 #include "pv/data/logicsegment.hpp"
44 #include "pv/data/signalbase.hpp"
45 #include "pv/globalsettings.hpp"
47 #include <libsigrokcxx/libsigrokcxx.hpp>
56 using std::numeric_limits;
58 using std::placeholders::_1;
59 using std::shared_ptr;
62 using pv::data::SignalBase;
68 const QColor AnalogSignal::SignalColours[4] = {
69 QColor(0xC4, 0xA0, 0x00), // Yellow
70 QColor(0x87, 0x20, 0x7A), // Magenta
71 QColor(0x20, 0x4A, 0x87), // Blue
72 QColor(0x4E, 0x9A, 0x06) // Green
75 const QPen AnalogSignal::AxisPen(QColor(0, 0, 0, 30 * 256 / 100), 2);
76 const QColor AnalogSignal::GridMajorColor = QColor(0, 0, 0, 40 * 256 / 100);
77 const QColor AnalogSignal::GridMinorColor = QColor(0, 0, 0, 20 * 256 / 100);
79 const QColor AnalogSignal::SamplingPointColour(0x77, 0x77, 0x77);
80 const QColor AnalogSignal::SamplingPointColourLo = QColor(200, 0, 0, 80 * 256 / 100);
81 const QColor AnalogSignal::SamplingPointColourNe = QColor(0, 0, 0, 80 * 256 / 100);
82 const QColor AnalogSignal::SamplingPointColourHi = QColor(0, 200, 0, 80 * 256 / 100);
84 const QColor AnalogSignal::ThresholdColor = QColor(0, 0, 0, 30 * 256 / 100);
85 const QColor AnalogSignal::ThresholdColorLo = QColor(255, 0, 0, 8 * 256 / 100);
86 const QColor AnalogSignal::ThresholdColorNe = QColor(0, 0, 0, 10 * 256 / 100);
87 const QColor AnalogSignal::ThresholdColorHi = QColor(0, 255, 0, 8 * 256 / 100);
89 const int64_t AnalogSignal::TracePaintBlockSize = 1024 * 1024; // 4 MiB (due to float)
90 const float AnalogSignal::EnvelopeThreshold = 64.0f;
92 const int AnalogSignal::MaximumVDivs = 10;
93 const int AnalogSignal::MinScaleIndex = -6;
94 const int AnalogSignal::MaxScaleIndex = 7;
96 const int AnalogSignal::InfoTextMarginRight = 20;
97 const int AnalogSignal::InfoTextMarginBottom = 5;
99 AnalogSignal::AnalogSignal(
100 pv::Session &session,
101 shared_ptr<data::SignalBase> base) :
102 Signal(session, base),
103 scale_index_(4), // 20 per div
104 scale_index_drag_offset_(0),
108 display_type_(DisplayBoth),
113 pv::data::Analog* analog_data =
114 dynamic_cast<pv::data::Analog*>(data().get());
116 connect(analog_data, SIGNAL(min_max_changed(float, float)),
117 this, SLOT(on_min_max_changed(float, float)));
119 GlobalSettings::register_change_handler(GlobalSettings::Key_View_ConversionThresholdDispMode,
120 bind(&AnalogSignal::on_settingViewConversionThresholdDispMode_changed, this, _1));
123 conversion_threshold_disp_mode_ =
124 gs.value(GlobalSettings::Key_View_ConversionThresholdDispMode).toInt();
126 div_height_ = gs.value(GlobalSettings::Key_View_DefaultDivHeight).toInt();
128 base_->set_colour(SignalColours[base_->index() % countof(SignalColours)]);
132 shared_ptr<pv::data::SignalData> AnalogSignal::data() const
134 return base_->analog_data();
137 void AnalogSignal::save_settings(QSettings &settings) const
139 settings.setValue("pos_vdivs", pos_vdivs_);
140 settings.setValue("neg_vdivs", neg_vdivs_);
141 settings.setValue("scale_index", scale_index_);
142 settings.setValue("display_type", display_type_);
143 settings.setValue("autoranging", autoranging_);
144 settings.setValue("div_height", div_height_);
147 void AnalogSignal::restore_settings(QSettings &settings)
149 if (settings.contains("pos_vdivs"))
150 pos_vdivs_ = settings.value("pos_vdivs").toInt();
152 if (settings.contains("neg_vdivs"))
153 neg_vdivs_ = settings.value("neg_vdivs").toInt();
155 if (settings.contains("scale_index")) {
156 scale_index_ = settings.value("scale_index").toInt();
160 if (settings.contains("display_type"))
161 display_type_ = (DisplayType)(settings.value("display_type").toInt());
163 if (settings.contains("autoranging"))
164 autoranging_ = settings.value("autoranging").toBool();
166 if (settings.contains("div_height")) {
167 const int old_height = div_height_;
168 div_height_ = settings.value("div_height").toInt();
170 if ((div_height_ != old_height) && owner_) {
171 // Call order is important, otherwise the lazy event handler won't work
172 owner_->extents_changed(false, true);
173 owner_->row_item_appearance_changed(false, true);
178 pair<int, int> AnalogSignal::v_extents() const
180 const int ph = pos_vdivs_ * div_height_;
181 const int nh = neg_vdivs_ * div_height_;
182 return make_pair(-ph, nh);
185 int AnalogSignal::scale_handle_offset() const
187 const int h = (pos_vdivs_ + neg_vdivs_) * div_height_;
189 return ((scale_index_drag_offset_ - scale_index_) * h / 4) - h / 2;
192 void AnalogSignal::scale_handle_dragged(int offset)
194 const int h = (pos_vdivs_ + neg_vdivs_) * div_height_;
196 scale_index_ = scale_index_drag_offset_ - (offset + h / 2) / (h / 4);
201 void AnalogSignal::scale_handle_drag_release()
203 scale_index_drag_offset_ = scale_index_;
207 void AnalogSignal::paint_back(QPainter &p, ViewItemPaintParams &pp)
209 if (!base_->enabled())
213 conversion_threshold_disp_mode_ == GlobalSettings::ConvThrDispMode_Background;
215 const vector<double> thresholds = base_->get_conversion_thresholds();
217 // Only display thresholds if we have some and we show analog samples
218 if ((thresholds.size() > 0) && paint_thr_bg &&
219 ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth))) {
221 const int visual_y = get_visual_y();
222 const pair<int, int> extents = v_extents();
223 const int top = visual_y + extents.first;
224 const int btm = visual_y + extents.second;
226 // Draw high/neutral/low areas
227 if (thresholds.size() == 2) {
228 const double thr_lo = visual_y - thresholds[0] * scale_;
229 const double thr_hi = visual_y - thresholds[1] * scale_;
231 p.fillRect(QRectF(pp.left(), top, pp.width(), thr_hi - top),
232 QBrush(ThresholdColorHi));
233 p.fillRect(QRectF(pp.left(), thr_hi, pp.width(), thr_lo - thr_hi),
234 QBrush(ThresholdColorNe));
235 p.fillRect(QRectF(pp.left(), thr_lo, pp.width(), btm - thr_lo),
236 QBrush(ThresholdColorLo));
238 const double thr = visual_y - thresholds[0] * scale_;
240 p.fillRect(QRectF(pp.left(), top, pp.width(), thr - top),
241 QBrush(ThresholdColorHi));
242 p.fillRect(QRectF(pp.left(), thr, pp.width(), btm - thr),
243 QBrush(ThresholdColorLo));
246 paint_axis(p, pp, get_visual_y());
248 Trace::paint_back(p, pp);
249 paint_axis(p, pp, get_visual_y());
253 void AnalogSignal::paint_mid(QPainter &p, ViewItemPaintParams &pp)
255 assert(base_->analog_data());
258 const int y = get_visual_y();
260 if (!base_->enabled())
263 if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) {
264 paint_grid(p, y, pp.left(), pp.right());
266 const deque< shared_ptr<pv::data::AnalogSegment> > &segments =
267 base_->analog_data()->analog_segments();
268 if (segments.empty())
271 const shared_ptr<pv::data::AnalogSegment> &segment =
274 const double pixels_offset = pp.pixels_offset();
275 const double samplerate = max(1.0, segment->samplerate());
276 const pv::util::Timestamp& start_time = segment->start_time();
277 const int64_t last_sample = segment->get_sample_count() - 1;
278 const double samples_per_pixel = samplerate * pp.scale();
279 const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
280 const pv::util::Timestamp end = start + samples_per_pixel * pp.width();
282 const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
283 (int64_t)0), last_sample);
284 const int64_t end_sample = min(max((ceil(end) + 1).convert_to<int64_t>(),
285 (int64_t)0), last_sample);
287 if (samples_per_pixel < EnvelopeThreshold)
288 paint_trace(p, segment, y, pp.left(),
289 start_sample, end_sample,
290 pixels_offset, samples_per_pixel);
292 paint_envelope(p, segment, y, pp.left(),
293 start_sample, end_sample,
294 pixels_offset, samples_per_pixel);
297 if ((display_type_ == DisplayConverted) || (display_type_ == DisplayBoth))
298 paint_logic_mid(p, pp);
301 void AnalogSignal::paint_fore(QPainter &p, ViewItemPaintParams &pp)
306 if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) {
307 const int y = get_visual_y();
309 // Show the info section on the right side of the trace
310 const QString infotext = QString("%1 V/div").arg(resolution_);
312 p.setPen(base_->colour());
313 p.setFont(QApplication::font());
315 const QRectF bounding_rect = QRectF(pp.left(),
316 y + v_extents().first,
317 pp.width() - InfoTextMarginRight,
318 v_extents().second - v_extents().first - InfoTextMarginBottom);
320 p.drawText(bounding_rect, Qt::AlignRight | Qt::AlignBottom, infotext);
324 void AnalogSignal::paint_grid(QPainter &p, int y, int left, int right)
326 p.setRenderHint(QPainter::Antialiasing, false);
328 GlobalSettings settings;
329 const bool show_analog_minor_grid =
330 settings.value(GlobalSettings::Key_View_ShowAnalogMinorGrid).toBool();
332 if (pos_vdivs_ > 0) {
333 p.setPen(QPen(GridMajorColor, 1, Qt::DashLine));
334 for (int i = 1; i <= pos_vdivs_; i++) {
335 const float dy = i * div_height_;
336 p.drawLine(QLineF(left, y - dy, right, y - dy));
340 if ((pos_vdivs_ > 0) && show_analog_minor_grid) {
341 p.setPen(QPen(GridMinorColor, 1, Qt::DashLine));
342 for (int i = 0; i < pos_vdivs_; i++) {
343 const float dy = i * div_height_;
344 const float dy25 = dy + (0.25 * div_height_);
345 const float dy50 = dy + (0.50 * div_height_);
346 const float dy75 = dy + (0.75 * div_height_);
347 p.drawLine(QLineF(left, y - dy25, right, y - dy25));
348 p.drawLine(QLineF(left, y - dy50, right, y - dy50));
349 p.drawLine(QLineF(left, y - dy75, right, y - dy75));
353 if (neg_vdivs_ > 0) {
354 p.setPen(QPen(GridMajorColor, 1, Qt::DashLine));
355 for (int i = 1; i <= neg_vdivs_; i++) {
356 const float dy = i * div_height_;
357 p.drawLine(QLineF(left, y + dy, right, y + dy));
361 if ((pos_vdivs_ > 0) && show_analog_minor_grid) {
362 p.setPen(QPen(GridMinorColor, 1, Qt::DashLine));
363 for (int i = 0; i < neg_vdivs_; i++) {
364 const float dy = i * div_height_;
365 const float dy25 = dy + (0.25 * div_height_);
366 const float dy50 = dy + (0.50 * div_height_);
367 const float dy75 = dy + (0.75 * div_height_);
368 p.drawLine(QLineF(left, y + dy25, right, y + dy25));
369 p.drawLine(QLineF(left, y + dy50, right, y + dy50));
370 p.drawLine(QLineF(left, y + dy75, right, y + dy75));
374 p.setRenderHint(QPainter::Antialiasing, true);
377 void AnalogSignal::paint_trace(QPainter &p,
378 const shared_ptr<pv::data::AnalogSegment> &segment,
379 int y, int left, const int64_t start, const int64_t end,
380 const double pixels_offset, const double samples_per_pixel)
385 bool paint_thr_dots =
386 (base_->get_conversion_type() != data::SignalBase::NoConversion) &&
387 (conversion_threshold_disp_mode_ == GlobalSettings::ConvThrDispMode_Dots);
389 vector<double> thresholds;
391 thresholds = base_->get_conversion_thresholds();
393 // Calculate and paint the sampling points if enabled and useful
394 GlobalSettings settings;
395 const bool show_sampling_points =
396 (settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() ||
397 paint_thr_dots) && (samples_per_pixel < 0.25);
399 p.setPen(base_->colour());
401 const int64_t points_count = end - start;
403 QPointF *points = new QPointF[points_count];
404 QPointF *point = points;
406 vector<QRectF> sampling_points[3];
408 int64_t sample_count = min(points_count, TracePaintBlockSize);
409 int64_t block_sample = 0;
410 float *sample_block = new float[TracePaintBlockSize];
411 segment->get_samples(start, start + sample_count, sample_block);
414 for (int64_t sample = start; sample != end; sample++, block_sample++) {
416 if (block_sample == TracePaintBlockSize) {
418 sample_count = min(points_count - sample, TracePaintBlockSize);
419 segment->get_samples(sample, sample + sample_count, sample_block);
422 const float x = (sample / samples_per_pixel -
423 pixels_offset) + left;
425 *point++ = QPointF(x, y - sample_block[block_sample] * scale_);
427 if (show_sampling_points) {
428 int idx = 0; // Neutral
430 if (paint_thr_dots) {
431 if (thresholds.size() == 1)
432 idx = (sample_block[block_sample] >= thresholds[0]) ? 2 : 1;
433 else if (thresholds.size() == 2) {
434 if (sample_block[block_sample] > thresholds[1])
436 else if (sample_block[block_sample] < thresholds[0])
441 sampling_points[idx].push_back(
442 QRectF(x - (w / 2), y - sample_block[block_sample] * scale_ - (w / 2), w, w));
445 delete[] sample_block;
447 p.drawPolyline(points, points_count);
449 if (show_sampling_points) {
450 if (paint_thr_dots) {
451 p.setPen(SamplingPointColourNe);
452 p.drawRects(sampling_points[0].data(), sampling_points[0].size());
453 p.setPen(SamplingPointColourLo);
454 p.drawRects(sampling_points[1].data(), sampling_points[1].size());
455 p.setPen(SamplingPointColourHi);
456 p.drawRects(sampling_points[2].data(), sampling_points[2].size());
458 p.setPen(SamplingPointColour);
459 p.drawRects(sampling_points[0].data(), sampling_points[0].size());
466 void AnalogSignal::paint_envelope(QPainter &p,
467 const shared_ptr<pv::data::AnalogSegment> &segment,
468 int y, int left, const int64_t start, const int64_t end,
469 const double pixels_offset, const double samples_per_pixel)
471 using pv::data::AnalogSegment;
473 AnalogSegment::EnvelopeSection e;
474 segment->get_envelope_section(e, start, end, samples_per_pixel);
479 p.setPen(QPen(Qt::NoPen));
480 p.setBrush(base_->colour());
482 QRectF *const rects = new QRectF[e.length];
483 QRectF *rect = rects;
485 for (uint64_t sample = 0; sample < e.length - 1; sample++) {
486 const float x = ((e.scale * sample + e.start) /
487 samples_per_pixel - pixels_offset) + left;
488 const AnalogSegment::EnvelopeSample *const s =
491 // We overlap this sample with the next so that vertical
492 // gaps do not appear during steep rising or falling edges
493 const float b = y - max(s->max, (s + 1)->min) * scale_;
494 const float t = y - min(s->min, (s + 1)->max) * scale_;
497 if (h >= 0.0f && h <= 1.0f)
499 if (h <= 0.0f && h >= -1.0f)
502 *rect++ = QRectF(x, t, 1.0f, h);
505 p.drawRects(rects, e.length);
511 void AnalogSignal::paint_logic_mid(QPainter &p, ViewItemPaintParams &pp)
515 vector< pair<int64_t, bool> > edges;
519 const int y = get_visual_y();
521 if (!base_->enabled() || !base_->logic_data())
524 const int signal_margin =
525 QFontMetrics(QApplication::font()).height() / 2;
527 const int ph = min(pos_vdivs_, 1) * div_height_;
528 const int nh = min(neg_vdivs_, 1) * div_height_;
529 const float high_offset = y - ph + signal_margin + 0.5f;
530 const float low_offset = y + nh - signal_margin - 0.5f;
532 const deque< shared_ptr<pv::data::LogicSegment> > &segments =
533 base_->logic_data()->logic_segments();
535 if (segments.empty())
538 const shared_ptr<pv::data::LogicSegment> &segment =
541 double samplerate = segment->samplerate();
543 // Show sample rate as 1Hz when it is unknown
544 if (samplerate == 0.0)
547 const double pixels_offset = pp.pixels_offset();
548 const pv::util::Timestamp& start_time = segment->start_time();
549 const int64_t last_sample = segment->get_sample_count() - 1;
550 const double samples_per_pixel = samplerate * pp.scale();
551 const double pixels_per_sample = 1 / samples_per_pixel;
552 const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
553 const pv::util::Timestamp end = start + samples_per_pixel * pp.width();
555 const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
556 (int64_t)0), last_sample);
557 const uint64_t end_sample = min(max(ceil(end).convert_to<int64_t>(),
558 (int64_t)0), last_sample);
560 segment->get_subsampled_edges(edges, start_sample, end_sample,
561 samples_per_pixel / LogicSignal::Oversampling, 0);
562 assert(edges.size() >= 2);
564 // Check whether we need to paint the sampling points
565 GlobalSettings settings;
566 const bool show_sampling_points =
567 settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() &&
568 (samples_per_pixel < 0.25);
570 vector<QRectF> sampling_points;
571 float sampling_point_x = 0.0f;
572 int64_t sampling_point_sample = start_sample;
575 if (show_sampling_points) {
576 sampling_points.reserve(end_sample - start_sample + 1);
577 sampling_point_x = (edges.cbegin()->first / samples_per_pixel - pixels_offset) + pp.left();
581 const unsigned int edge_count = edges.size() - 2;
582 QLineF *const edge_lines = new QLineF[edge_count];
585 for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) {
586 const float x = ((*i).first / samples_per_pixel -
587 pixels_offset) + pp.left();
588 *line++ = QLineF(x, high_offset, x, low_offset);
590 if (show_sampling_points)
591 while (sampling_point_sample < (*i).first) {
592 const float y = (*i).second ? low_offset : high_offset;
593 sampling_points.emplace_back(
594 QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
595 sampling_point_sample++;
596 sampling_point_x += pixels_per_sample;
600 // Calculate the sample points from the last edge to the end of the trace
601 if (show_sampling_points)
602 while ((uint64_t)sampling_point_sample <= end_sample) {
603 // Signal changed after the last edge, so the level is inverted
604 const float y = (edges.cend() - 1)->second ? high_offset : low_offset;
605 sampling_points.emplace_back(
606 QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
607 sampling_point_sample++;
608 sampling_point_x += pixels_per_sample;
611 p.setPen(LogicSignal::EdgeColour);
612 p.drawLines(edge_lines, edge_count);
616 const unsigned int max_cap_line_count = edges.size();
617 QLineF *const cap_lines = new QLineF[max_cap_line_count];
619 p.setPen(LogicSignal::HighColour);
620 paint_logic_caps(p, cap_lines, edges, true, samples_per_pixel,
621 pixels_offset, pp.left(), high_offset);
622 p.setPen(LogicSignal::LowColour);
623 paint_logic_caps(p, cap_lines, edges, false, samples_per_pixel,
624 pixels_offset, pp.left(), low_offset);
628 // Paint the sampling points
629 if (show_sampling_points) {
630 p.setPen(SamplingPointColour);
631 p.drawRects(sampling_points.data(), sampling_points.size());
635 void AnalogSignal::paint_logic_caps(QPainter &p, QLineF *const lines,
636 vector< pair<int64_t, bool> > &edges, bool level,
637 double samples_per_pixel, double pixels_offset, float x_offset,
640 QLineF *line = lines;
642 for (auto i = edges.begin(); i != (edges.end() - 1); i++)
643 if ((*i).second == level) {
645 ((*i).first / samples_per_pixel -
646 pixels_offset) + x_offset, y_offset,
647 ((*(i+1)).first / samples_per_pixel -
648 pixels_offset) + x_offset, y_offset);
651 p.drawLines(lines, line - lines);
654 float AnalogSignal::get_resolution(int scale_index)
656 const float seq[] = {1.0f, 2.0f, 5.0f};
658 const int offset = numeric_limits<int>::max() / (2 * countof(seq));
659 const div_t d = div((int)(scale_index + countof(seq) * offset),
662 return powf(10.0f, d.quot - offset) * seq[d.rem];
665 void AnalogSignal::update_scale()
667 resolution_ = get_resolution(scale_index_);
668 scale_ = div_height_ / resolution_;
671 void AnalogSignal::update_conversion_widgets()
673 SignalBase::ConversionType conv_type = base_->get_conversion_type();
675 // Enable or disable widgets depending on conversion state
676 conv_threshold_cb_->setEnabled(conv_type != SignalBase::NoConversion);
677 display_type_cb_->setEnabled(conv_type != SignalBase::NoConversion);
679 conv_threshold_cb_->clear();
681 vector < pair<QString, int> > presets = base_->get_conversion_presets();
683 // Prevent the combo box from firing the "edit text changed" signal
684 // as that would involuntarily select the first entry
685 conv_threshold_cb_->blockSignals(true);
687 // Set available options depending on chosen conversion
688 for (pair<QString, int> preset : presets)
689 conv_threshold_cb_->addItem(preset.first, preset.second);
691 map < QString, QVariant > options = base_->get_conversion_options();
693 if (conv_type == SignalBase::A2LConversionByThreshold) {
694 const vector<double> thresholds = base_->get_conversion_thresholds(
695 SignalBase::A2LConversionByThreshold, true);
696 conv_threshold_cb_->addItem(
697 QString("%1V").arg(QString::number(thresholds[0], 'f', 1)), -1);
700 if (conv_type == SignalBase::A2LConversionBySchmittTrigger) {
701 const vector<double> thresholds = base_->get_conversion_thresholds(
702 SignalBase::A2LConversionBySchmittTrigger, true);
703 conv_threshold_cb_->addItem(QString("%1V/%2V").arg(
704 QString::number(thresholds[0], 'f', 1),
705 QString::number(thresholds[1], 'f', 1)), -1);
708 int preset_id = base_->get_current_conversion_preset();
709 conv_threshold_cb_->setCurrentIndex(
710 conv_threshold_cb_->findData(preset_id));
712 conv_threshold_cb_->blockSignals(false);
715 void AnalogSignal::perform_autoranging(bool keep_divs, bool force_update)
717 const deque< shared_ptr<pv::data::AnalogSegment> > &segments =
718 base_->analog_data()->analog_segments();
720 if (segments.empty())
723 static double prev_min = 0, prev_max = 0;
724 double min = 0, max = 0;
726 for (shared_ptr<pv::data::AnalogSegment> segment : segments) {
727 pair<double, double> mm = segment->get_min_max();
728 min = std::min(min, mm.first);
729 max = std::max(max, mm.second);
732 if ((min == prev_min) && (max == prev_max) && !force_update)
738 // If we're allowed to alter the div assignment...
740 // Use all divs for the positive range if there are no negative values
741 if ((min == 0) && (neg_vdivs_ > 0)) {
742 pos_vdivs_ += neg_vdivs_;
746 // Split up the divs if there are negative values but no negative divs
747 if ((min < 0) && (neg_vdivs_ == 0)) {
748 neg_vdivs_ = pos_vdivs_ / 2;
749 pos_vdivs_ -= neg_vdivs_;
753 // If there is still no positive div when we need it, add one
754 // (this can happen when pos_vdivs==neg_vdivs==0)
755 if ((max > 0) && (pos_vdivs_ == 0)) {
757 owner_->extents_changed(false, true);
760 // If there is still no negative div when we need it, add one
761 // (this can happen when pos_vdivs was 0 or 1 when trying to split)
762 if ((min < 0) && (neg_vdivs_ == 0)) {
764 owner_->extents_changed(false, true);
767 double min_value_per_div;
768 if ((pos_vdivs_ > 0) && (neg_vdivs_ > 0))
769 min_value_per_div = std::max(max / pos_vdivs_, -min / neg_vdivs_);
770 else if (pos_vdivs_ > 0)
771 min_value_per_div = max / pos_vdivs_;
773 min_value_per_div = -min / neg_vdivs_;
775 // Find first scale value that is bigger than the value we need
776 for (int i = MinScaleIndex; i < MaxScaleIndex; i++)
777 if (get_resolution(i) > min_value_per_div) {
785 void AnalogSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
787 // Add the standard options
788 Signal::populate_popup_form(parent, form);
790 QFormLayout *const layout = new QFormLayout;
792 // Add div-related settings
793 pvdiv_sb_ = new QSpinBox(parent);
794 pvdiv_sb_->setRange(0, MaximumVDivs);
795 pvdiv_sb_->setValue(pos_vdivs_);
796 connect(pvdiv_sb_, SIGNAL(valueChanged(int)),
797 this, SLOT(on_pos_vdivs_changed(int)));
798 layout->addRow(tr("Number of pos vertical divs"), pvdiv_sb_);
800 nvdiv_sb_ = new QSpinBox(parent);
801 nvdiv_sb_->setRange(0, MaximumVDivs);
802 nvdiv_sb_->setValue(neg_vdivs_);
803 connect(nvdiv_sb_, SIGNAL(valueChanged(int)),
804 this, SLOT(on_neg_vdivs_changed(int)));
805 layout->addRow(tr("Number of neg vertical divs"), nvdiv_sb_);
807 div_height_sb_ = new QSpinBox(parent);
808 div_height_sb_->setRange(20, 1000);
809 div_height_sb_->setSingleStep(5);
810 div_height_sb_->setSuffix(tr(" pixels"));
811 div_height_sb_->setValue(div_height_);
812 connect(div_height_sb_, SIGNAL(valueChanged(int)),
813 this, SLOT(on_div_height_changed(int)));
814 layout->addRow(tr("Div height"), div_height_sb_);
816 // Add the vertical resolution
817 resolution_cb_ = new QComboBox(parent);
819 for (int i = MinScaleIndex; i < MaxScaleIndex; i++) {
820 const QString label = QString("%1").arg(get_resolution(i));
821 resolution_cb_->insertItem(0, label, QVariant(i));
824 int cur_idx = resolution_cb_->findData(QVariant(scale_index_));
825 resolution_cb_->setCurrentIndex(cur_idx);
827 connect(resolution_cb_, SIGNAL(currentIndexChanged(int)),
828 this, SLOT(on_resolution_changed(int)));
830 QGridLayout *const vdiv_layout = new QGridLayout;
831 QLabel *const vdiv_unit = new QLabel(tr("V/div"));
832 vdiv_layout->addWidget(resolution_cb_, 0, 0);
833 vdiv_layout->addWidget(vdiv_unit, 0, 1);
835 layout->addRow(tr("Vertical resolution"), vdiv_layout);
837 // Add the autoranging checkbox
838 QCheckBox* autoranging_cb = new QCheckBox();
839 autoranging_cb->setCheckState(autoranging_ ? Qt::Checked : Qt::Unchecked);
841 connect(autoranging_cb, SIGNAL(stateChanged(int)),
842 this, SLOT(on_autoranging_changed(int)));
844 layout->addRow(tr("Autoranging"), autoranging_cb);
846 // Add the conversion type dropdown
847 conversion_cb_ = new QComboBox();
849 conversion_cb_->addItem(tr("none"),
850 SignalBase::NoConversion);
851 conversion_cb_->addItem(tr("to logic via threshold"),
852 SignalBase::A2LConversionByThreshold);
853 conversion_cb_->addItem(tr("to logic via schmitt-trigger"),
854 SignalBase::A2LConversionBySchmittTrigger);
856 cur_idx = conversion_cb_->findData(QVariant(base_->get_conversion_type()));
857 conversion_cb_->setCurrentIndex(cur_idx);
859 layout->addRow(tr("Conversion"), conversion_cb_);
861 connect(conversion_cb_, SIGNAL(currentIndexChanged(int)),
862 this, SLOT(on_conversion_changed(int)));
864 // Add the conversion threshold settings
865 conv_threshold_cb_ = new QComboBox();
866 conv_threshold_cb_->setEditable(true);
868 layout->addRow(tr("Conversion threshold(s)"), conv_threshold_cb_);
870 connect(conv_threshold_cb_, SIGNAL(currentIndexChanged(int)),
871 this, SLOT(on_conv_threshold_changed(int)));
872 connect(conv_threshold_cb_, SIGNAL(editTextChanged(const QString)),
873 this, SLOT(on_conv_threshold_changed())); // index will be -1
875 // Add the display type dropdown
876 display_type_cb_ = new QComboBox();
878 display_type_cb_->addItem(tr("analog"), DisplayAnalog);
879 display_type_cb_->addItem(tr("converted"), DisplayConverted);
880 display_type_cb_->addItem(tr("analog+converted"), DisplayBoth);
882 cur_idx = display_type_cb_->findData(QVariant(display_type_));
883 display_type_cb_->setCurrentIndex(cur_idx);
885 layout->addRow(tr("Show traces for"), display_type_cb_);
887 connect(display_type_cb_, SIGNAL(currentIndexChanged(int)),
888 this, SLOT(on_display_type_changed(int)));
890 // Update the conversion widget contents and states
891 update_conversion_widgets();
893 form->addRow(layout);
896 void AnalogSignal::on_min_max_changed(float min, float max)
902 perform_autoranging(false, false);
905 void AnalogSignal::on_pos_vdivs_changed(int vdivs)
907 if (vdivs == pos_vdivs_)
912 // There has to be at least one div, positive or negative
913 if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) {
916 pvdiv_sb_->setValue(pos_vdivs_);
920 perform_autoranging(true, true);
922 // It could be that a positive or negative div was added, so update
924 pvdiv_sb_->setValue(pos_vdivs_);
925 nvdiv_sb_->setValue(neg_vdivs_);
930 // Call order is important, otherwise the lazy event handler won't work
931 owner_->extents_changed(false, true);
932 owner_->row_item_appearance_changed(false, true);
936 void AnalogSignal::on_neg_vdivs_changed(int vdivs)
938 if (vdivs == neg_vdivs_)
943 // There has to be at least one div, positive or negative
944 if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) {
947 pvdiv_sb_->setValue(pos_vdivs_);
951 perform_autoranging(true, true);
953 // It could be that a positive or negative div was added, so update
955 pvdiv_sb_->setValue(pos_vdivs_);
956 nvdiv_sb_->setValue(neg_vdivs_);
961 // Call order is important, otherwise the lazy event handler won't work
962 owner_->extents_changed(false, true);
963 owner_->row_item_appearance_changed(false, true);
967 void AnalogSignal::on_div_height_changed(int height)
969 div_height_ = height;
973 // Call order is important, otherwise the lazy event handler won't work
974 owner_->extents_changed(false, true);
975 owner_->row_item_appearance_changed(false, true);
979 void AnalogSignal::on_resolution_changed(int index)
981 scale_index_ = resolution_cb_->itemData(index).toInt();
985 owner_->row_item_appearance_changed(false, true);
988 void AnalogSignal::on_autoranging_changed(int state)
990 autoranging_ = (state == Qt::Checked);
993 perform_autoranging(false, true);
996 // Call order is important, otherwise the lazy event handler won't work
997 owner_->extents_changed(false, true);
998 owner_->row_item_appearance_changed(false, true);
1002 void AnalogSignal::on_conversion_changed(int index)
1004 SignalBase::ConversionType old_conv_type = base_->get_conversion_type();
1006 SignalBase::ConversionType conv_type =
1007 (SignalBase::ConversionType)(conversion_cb_->itemData(index).toInt());
1009 if (conv_type != old_conv_type) {
1010 base_->set_conversion_type(conv_type);
1011 update_conversion_widgets();
1014 owner_->row_item_appearance_changed(false, true);
1018 void AnalogSignal::on_conv_threshold_changed(int index)
1020 SignalBase::ConversionType conv_type = base_->get_conversion_type();
1022 // Note: index is set to -1 if the text in the combo box matches none of
1023 // the entries in the combo box
1025 if ((index == -1) && (conv_threshold_cb_->currentText().length() == 0))
1028 // The combo box entry with the custom value has user_data set to -1
1029 const int user_data = conv_threshold_cb_->findText(
1030 conv_threshold_cb_->currentText());
1032 const bool use_custom_thr = (index == -1) || (user_data == -1);
1034 if (conv_type == SignalBase::A2LConversionByThreshold && use_custom_thr) {
1035 // Not one of the preset values, try to parse the combo box text
1036 // Note: Regex loosely based on
1037 // https://txt2re.com/index-c++.php3?s=0.1V&1&-13
1038 QString re1 = "([+-]?\\d*[\\.,]?\\d*)"; // Float value
1039 QString re2 = "([a-zA-Z]*)"; // SI unit
1040 QRegExp regex(re1 + re2);
1042 const QString text = conv_threshold_cb_->currentText();
1043 if (!regex.exactMatch(text))
1044 return; // String doesn't match the regex
1046 QStringList tokens = regex.capturedTexts();
1048 // For now, we simply assume that the unit is volt without modifiers
1049 const double thr = tokens.at(1).toDouble();
1051 // Only restart the conversion if the threshold was updated.
1052 // We're starting a delayed conversion because the user may still be
1053 // typing and the UI would lag if we kept on restarting it immediately
1054 if (base_->set_conversion_option("threshold_value", thr))
1055 base_->start_conversion(true);
1058 if (conv_type == SignalBase::A2LConversionBySchmittTrigger && use_custom_thr) {
1059 // Not one of the preset values, try to parse the combo box text
1060 // Note: Regex loosely based on
1061 // https://txt2re.com/index-c++.php3?s=0.1V/0.2V&2&14&-22&3&15
1062 QString re1 = "([+-]?\\d*[\\.,]?\\d*)"; // Float value
1063 QString re2 = "([a-zA-Z]*)"; // SI unit
1064 QString re3 = "\\/"; // Forward slash, not captured
1065 QString re4 = "([+-]?\\d*[\\.,]?\\d*)"; // Float value
1066 QString re5 = "([a-zA-Z]*)"; // SI unit
1067 QRegExp regex(re1 + re2 + re3 + re4 + re5);
1069 const QString text = conv_threshold_cb_->currentText();
1070 if (!regex.exactMatch(text))
1071 return; // String doesn't match the regex
1073 QStringList tokens = regex.capturedTexts();
1075 // For now, we simply assume that the unit is volt without modifiers
1076 const double low_thr = tokens.at(1).toDouble();
1077 const double high_thr = tokens.at(3).toDouble();
1079 // Only restart the conversion if one of the options was updated.
1080 // We're starting a delayed conversion because the user may still be
1081 // typing and the UI would lag if we kept on restarting it immediately
1082 bool o1 = base_->set_conversion_option("threshold_value_low", low_thr);
1083 bool o2 = base_->set_conversion_option("threshold_value_high", high_thr);
1085 base_->start_conversion(true); // Start delayed conversion
1088 base_->set_conversion_preset((SignalBase::ConversionPreset)index);
1090 // Immediately start the conversion if we're not using custom values
1091 // (i.e. we're using one of the presets)
1092 if (!use_custom_thr)
1093 base_->start_conversion();
1096 void AnalogSignal::on_delayed_conversion_starter()
1098 base_->start_conversion();
1101 void AnalogSignal::on_display_type_changed(int index)
1103 display_type_ = (DisplayType)(display_type_cb_->itemData(index).toInt());
1106 owner_->row_item_appearance_changed(false, true);
1109 void AnalogSignal::on_settingViewConversionThresholdDispMode_changed(const QVariant new_value)
1111 conversion_threshold_disp_mode_ = new_value.toInt();
1114 owner_->row_item_appearance_changed(false, true);
1117 } // namespace trace
1118 } // namespace views