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 int thr_lo = visual_y - thresholds[0] * scale_;
229 int thr_hi = visual_y - thresholds[1] * scale_;
230 thr_lo = min(max(thr_lo, top), btm);
231 thr_hi = min(max(thr_hi, top), btm);
233 p.fillRect(QRectF(pp.left(), top, pp.width(), thr_hi - top),
234 QBrush(ThresholdColorHi));
235 p.fillRect(QRectF(pp.left(), thr_hi, pp.width(), thr_lo - thr_hi),
236 QBrush(ThresholdColorNe));
237 p.fillRect(QRectF(pp.left(), thr_lo, pp.width(), btm - thr_lo),
238 QBrush(ThresholdColorLo));
240 int thr = visual_y - thresholds[0] * scale_;
241 thr = min(max(thr, top), btm);
243 p.fillRect(QRectF(pp.left(), top, pp.width(), thr - top),
244 QBrush(ThresholdColorHi));
245 p.fillRect(QRectF(pp.left(), thr, pp.width(), btm - thr),
246 QBrush(ThresholdColorLo));
249 paint_axis(p, pp, get_visual_y());
251 Trace::paint_back(p, pp);
252 paint_axis(p, pp, get_visual_y());
256 void AnalogSignal::paint_mid(QPainter &p, ViewItemPaintParams &pp)
258 assert(base_->analog_data());
261 const int y = get_visual_y();
263 if (!base_->enabled())
266 if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) {
267 paint_grid(p, y, pp.left(), pp.right());
269 const deque< shared_ptr<pv::data::AnalogSegment> > &segments =
270 base_->analog_data()->analog_segments();
271 if (segments.empty())
274 const shared_ptr<pv::data::AnalogSegment> &segment =
277 const double pixels_offset = pp.pixels_offset();
278 const double samplerate = max(1.0, segment->samplerate());
279 const pv::util::Timestamp& start_time = segment->start_time();
280 const int64_t last_sample = segment->get_sample_count() - 1;
281 const double samples_per_pixel = samplerate * pp.scale();
282 const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
283 const pv::util::Timestamp end = start + samples_per_pixel * pp.width();
285 const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
286 (int64_t)0), last_sample);
287 const int64_t end_sample = min(max((ceil(end) + 1).convert_to<int64_t>(),
288 (int64_t)0), last_sample);
290 if (samples_per_pixel < EnvelopeThreshold)
291 paint_trace(p, segment, y, pp.left(),
292 start_sample, end_sample,
293 pixels_offset, samples_per_pixel);
295 paint_envelope(p, segment, y, pp.left(),
296 start_sample, end_sample,
297 pixels_offset, samples_per_pixel);
300 if ((display_type_ == DisplayConverted) || (display_type_ == DisplayBoth))
301 paint_logic_mid(p, pp);
304 void AnalogSignal::paint_fore(QPainter &p, ViewItemPaintParams &pp)
309 if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) {
310 const int y = get_visual_y();
312 // Show the info section on the right side of the trace
313 const QString infotext = QString("%1 V/div").arg(resolution_);
315 p.setPen(base_->colour());
316 p.setFont(QApplication::font());
318 const QRectF bounding_rect = QRectF(pp.left(),
319 y + v_extents().first,
320 pp.width() - InfoTextMarginRight,
321 v_extents().second - v_extents().first - InfoTextMarginBottom);
323 p.drawText(bounding_rect, Qt::AlignRight | Qt::AlignBottom, infotext);
327 void AnalogSignal::paint_grid(QPainter &p, int y, int left, int right)
329 p.setRenderHint(QPainter::Antialiasing, false);
331 GlobalSettings settings;
332 const bool show_analog_minor_grid =
333 settings.value(GlobalSettings::Key_View_ShowAnalogMinorGrid).toBool();
335 if (pos_vdivs_ > 0) {
336 p.setPen(QPen(GridMajorColor, 1, Qt::DashLine));
337 for (int i = 1; i <= pos_vdivs_; i++) {
338 const float dy = i * div_height_;
339 p.drawLine(QLineF(left, y - dy, right, y - dy));
343 if ((pos_vdivs_ > 0) && show_analog_minor_grid) {
344 p.setPen(QPen(GridMinorColor, 1, Qt::DashLine));
345 for (int i = 0; i < pos_vdivs_; i++) {
346 const float dy = i * div_height_;
347 const float dy25 = dy + (0.25 * div_height_);
348 const float dy50 = dy + (0.50 * div_height_);
349 const float dy75 = dy + (0.75 * div_height_);
350 p.drawLine(QLineF(left, y - dy25, right, y - dy25));
351 p.drawLine(QLineF(left, y - dy50, right, y - dy50));
352 p.drawLine(QLineF(left, y - dy75, right, y - dy75));
356 if (neg_vdivs_ > 0) {
357 p.setPen(QPen(GridMajorColor, 1, Qt::DashLine));
358 for (int i = 1; i <= neg_vdivs_; i++) {
359 const float dy = i * div_height_;
360 p.drawLine(QLineF(left, y + dy, right, y + dy));
364 if ((pos_vdivs_ > 0) && show_analog_minor_grid) {
365 p.setPen(QPen(GridMinorColor, 1, Qt::DashLine));
366 for (int i = 0; i < neg_vdivs_; i++) {
367 const float dy = i * div_height_;
368 const float dy25 = dy + (0.25 * div_height_);
369 const float dy50 = dy + (0.50 * div_height_);
370 const float dy75 = dy + (0.75 * div_height_);
371 p.drawLine(QLineF(left, y + dy25, right, y + dy25));
372 p.drawLine(QLineF(left, y + dy50, right, y + dy50));
373 p.drawLine(QLineF(left, y + dy75, right, y + dy75));
377 p.setRenderHint(QPainter::Antialiasing, true);
380 void AnalogSignal::paint_trace(QPainter &p,
381 const shared_ptr<pv::data::AnalogSegment> &segment,
382 int y, int left, const int64_t start, const int64_t end,
383 const double pixels_offset, const double samples_per_pixel)
388 bool paint_thr_dots =
389 (base_->get_conversion_type() != data::SignalBase::NoConversion) &&
390 (conversion_threshold_disp_mode_ == GlobalSettings::ConvThrDispMode_Dots);
392 vector<double> thresholds;
394 thresholds = base_->get_conversion_thresholds();
396 // Calculate and paint the sampling points if enabled and useful
397 GlobalSettings settings;
398 const bool show_sampling_points =
399 (settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() ||
400 paint_thr_dots) && (samples_per_pixel < 0.25);
402 p.setPen(base_->colour());
404 const int64_t points_count = end - start;
406 QPointF *points = new QPointF[points_count];
407 QPointF *point = points;
409 vector<QRectF> sampling_points[3];
411 int64_t sample_count = min(points_count, TracePaintBlockSize);
412 int64_t block_sample = 0;
413 float *sample_block = new float[TracePaintBlockSize];
414 segment->get_samples(start, start + sample_count, sample_block);
417 for (int64_t sample = start; sample != end; sample++, block_sample++) {
419 if (block_sample == TracePaintBlockSize) {
421 sample_count = min(points_count - sample, TracePaintBlockSize);
422 segment->get_samples(sample, sample + sample_count, sample_block);
425 const float x = (sample / samples_per_pixel -
426 pixels_offset) + left;
428 *point++ = QPointF(x, y - sample_block[block_sample] * scale_);
430 if (show_sampling_points) {
431 int idx = 0; // Neutral
433 if (paint_thr_dots) {
434 if (thresholds.size() == 1)
435 idx = (sample_block[block_sample] >= thresholds[0]) ? 2 : 1;
436 else if (thresholds.size() == 2) {
437 if (sample_block[block_sample] > thresholds[1])
439 else if (sample_block[block_sample] < thresholds[0])
444 sampling_points[idx].push_back(
445 QRectF(x - (w / 2), y - sample_block[block_sample] * scale_ - (w / 2), w, w));
448 delete[] sample_block;
450 p.drawPolyline(points, points_count);
452 if (show_sampling_points) {
453 if (paint_thr_dots) {
454 p.setPen(SamplingPointColourNe);
455 p.drawRects(sampling_points[0].data(), sampling_points[0].size());
456 p.setPen(SamplingPointColourLo);
457 p.drawRects(sampling_points[1].data(), sampling_points[1].size());
458 p.setPen(SamplingPointColourHi);
459 p.drawRects(sampling_points[2].data(), sampling_points[2].size());
461 p.setPen(SamplingPointColour);
462 p.drawRects(sampling_points[0].data(), sampling_points[0].size());
469 void AnalogSignal::paint_envelope(QPainter &p,
470 const shared_ptr<pv::data::AnalogSegment> &segment,
471 int y, int left, const int64_t start, const int64_t end,
472 const double pixels_offset, const double samples_per_pixel)
474 using pv::data::AnalogSegment;
476 AnalogSegment::EnvelopeSection e;
477 segment->get_envelope_section(e, start, end, samples_per_pixel);
482 p.setPen(QPen(Qt::NoPen));
483 p.setBrush(base_->colour());
485 QRectF *const rects = new QRectF[e.length];
486 QRectF *rect = rects;
488 for (uint64_t sample = 0; sample < e.length - 1; sample++) {
489 const float x = ((e.scale * sample + e.start) /
490 samples_per_pixel - pixels_offset) + left;
491 const AnalogSegment::EnvelopeSample *const s =
494 // We overlap this sample with the next so that vertical
495 // gaps do not appear during steep rising or falling edges
496 const float b = y - max(s->max, (s + 1)->min) * scale_;
497 const float t = y - min(s->min, (s + 1)->max) * scale_;
500 if (h >= 0.0f && h <= 1.0f)
502 if (h <= 0.0f && h >= -1.0f)
505 *rect++ = QRectF(x, t, 1.0f, h);
508 p.drawRects(rects, e.length);
514 void AnalogSignal::paint_logic_mid(QPainter &p, ViewItemPaintParams &pp)
518 vector< pair<int64_t, bool> > edges;
522 const int y = get_visual_y();
524 if (!base_->enabled() || !base_->logic_data())
527 const int signal_margin =
528 QFontMetrics(QApplication::font()).height() / 2;
530 const int ph = min(pos_vdivs_, 1) * div_height_;
531 const int nh = min(neg_vdivs_, 1) * div_height_;
532 const float high_offset = y - ph + signal_margin + 0.5f;
533 const float low_offset = y + nh - signal_margin - 0.5f;
535 const deque< shared_ptr<pv::data::LogicSegment> > &segments =
536 base_->logic_data()->logic_segments();
538 if (segments.empty())
541 const shared_ptr<pv::data::LogicSegment> &segment =
544 double samplerate = segment->samplerate();
546 // Show sample rate as 1Hz when it is unknown
547 if (samplerate == 0.0)
550 const double pixels_offset = pp.pixels_offset();
551 const pv::util::Timestamp& start_time = segment->start_time();
552 const int64_t last_sample = segment->get_sample_count() - 1;
553 const double samples_per_pixel = samplerate * pp.scale();
554 const double pixels_per_sample = 1 / samples_per_pixel;
555 const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
556 const pv::util::Timestamp end = start + samples_per_pixel * pp.width();
558 const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
559 (int64_t)0), last_sample);
560 const uint64_t end_sample = min(max(ceil(end).convert_to<int64_t>(),
561 (int64_t)0), last_sample);
563 segment->get_subsampled_edges(edges, start_sample, end_sample,
564 samples_per_pixel / LogicSignal::Oversampling, 0);
565 assert(edges.size() >= 2);
567 // Check whether we need to paint the sampling points
568 GlobalSettings settings;
569 const bool show_sampling_points =
570 settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() &&
571 (samples_per_pixel < 0.25);
573 vector<QRectF> sampling_points;
574 float sampling_point_x = 0.0f;
575 int64_t sampling_point_sample = start_sample;
578 if (show_sampling_points) {
579 sampling_points.reserve(end_sample - start_sample + 1);
580 sampling_point_x = (edges.cbegin()->first / samples_per_pixel - pixels_offset) + pp.left();
584 const unsigned int edge_count = edges.size() - 2;
585 QLineF *const edge_lines = new QLineF[edge_count];
588 for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) {
589 const float x = ((*i).first / samples_per_pixel -
590 pixels_offset) + pp.left();
591 *line++ = QLineF(x, high_offset, x, low_offset);
593 if (show_sampling_points)
594 while (sampling_point_sample < (*i).first) {
595 const float y = (*i).second ? low_offset : high_offset;
596 sampling_points.emplace_back(
597 QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
598 sampling_point_sample++;
599 sampling_point_x += pixels_per_sample;
603 // Calculate the sample points from the last edge to the end of the trace
604 if (show_sampling_points)
605 while ((uint64_t)sampling_point_sample <= end_sample) {
606 // Signal changed after the last edge, so the level is inverted
607 const float y = (edges.cend() - 1)->second ? high_offset : low_offset;
608 sampling_points.emplace_back(
609 QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
610 sampling_point_sample++;
611 sampling_point_x += pixels_per_sample;
614 p.setPen(LogicSignal::EdgeColour);
615 p.drawLines(edge_lines, edge_count);
619 const unsigned int max_cap_line_count = edges.size();
620 QLineF *const cap_lines = new QLineF[max_cap_line_count];
622 p.setPen(LogicSignal::HighColour);
623 paint_logic_caps(p, cap_lines, edges, true, samples_per_pixel,
624 pixels_offset, pp.left(), high_offset);
625 p.setPen(LogicSignal::LowColour);
626 paint_logic_caps(p, cap_lines, edges, false, samples_per_pixel,
627 pixels_offset, pp.left(), low_offset);
631 // Paint the sampling points
632 if (show_sampling_points) {
633 p.setPen(SamplingPointColour);
634 p.drawRects(sampling_points.data(), sampling_points.size());
638 void AnalogSignal::paint_logic_caps(QPainter &p, QLineF *const lines,
639 vector< pair<int64_t, bool> > &edges, bool level,
640 double samples_per_pixel, double pixels_offset, float x_offset,
643 QLineF *line = lines;
645 for (auto i = edges.begin(); i != (edges.end() - 1); i++)
646 if ((*i).second == level) {
648 ((*i).first / samples_per_pixel -
649 pixels_offset) + x_offset, y_offset,
650 ((*(i+1)).first / samples_per_pixel -
651 pixels_offset) + x_offset, y_offset);
654 p.drawLines(lines, line - lines);
657 float AnalogSignal::get_resolution(int scale_index)
659 const float seq[] = {1.0f, 2.0f, 5.0f};
661 const int offset = numeric_limits<int>::max() / (2 * countof(seq));
662 const div_t d = div((int)(scale_index + countof(seq) * offset),
665 return powf(10.0f, d.quot - offset) * seq[d.rem];
668 void AnalogSignal::update_scale()
670 resolution_ = get_resolution(scale_index_);
671 scale_ = div_height_ / resolution_;
674 void AnalogSignal::update_conversion_widgets()
676 SignalBase::ConversionType conv_type = base_->get_conversion_type();
678 // Enable or disable widgets depending on conversion state
679 conv_threshold_cb_->setEnabled(conv_type != SignalBase::NoConversion);
680 display_type_cb_->setEnabled(conv_type != SignalBase::NoConversion);
682 conv_threshold_cb_->clear();
684 vector < pair<QString, int> > presets = base_->get_conversion_presets();
686 // Prevent the combo box from firing the "edit text changed" signal
687 // as that would involuntarily select the first entry
688 conv_threshold_cb_->blockSignals(true);
690 // Set available options depending on chosen conversion
691 for (pair<QString, int> preset : presets)
692 conv_threshold_cb_->addItem(preset.first, preset.second);
694 map < QString, QVariant > options = base_->get_conversion_options();
696 if (conv_type == SignalBase::A2LConversionByThreshold) {
697 const vector<double> thresholds = base_->get_conversion_thresholds(
698 SignalBase::A2LConversionByThreshold, true);
699 conv_threshold_cb_->addItem(
700 QString("%1V").arg(QString::number(thresholds[0], 'f', 1)), -1);
703 if (conv_type == SignalBase::A2LConversionBySchmittTrigger) {
704 const vector<double> thresholds = base_->get_conversion_thresholds(
705 SignalBase::A2LConversionBySchmittTrigger, true);
706 conv_threshold_cb_->addItem(QString("%1V/%2V").arg(
707 QString::number(thresholds[0], 'f', 1),
708 QString::number(thresholds[1], 'f', 1)), -1);
711 int preset_id = base_->get_current_conversion_preset();
712 conv_threshold_cb_->setCurrentIndex(
713 conv_threshold_cb_->findData(preset_id));
715 conv_threshold_cb_->blockSignals(false);
718 void AnalogSignal::perform_autoranging(bool keep_divs, bool force_update)
720 const deque< shared_ptr<pv::data::AnalogSegment> > &segments =
721 base_->analog_data()->analog_segments();
723 if (segments.empty())
726 static double prev_min = 0, prev_max = 0;
727 double min = 0, max = 0;
729 for (shared_ptr<pv::data::AnalogSegment> segment : segments) {
730 pair<double, double> mm = segment->get_min_max();
731 min = std::min(min, mm.first);
732 max = std::max(max, mm.second);
735 if ((min == prev_min) && (max == prev_max) && !force_update)
741 // If we're allowed to alter the div assignment...
743 // Use all divs for the positive range if there are no negative values
744 if ((min == 0) && (neg_vdivs_ > 0)) {
745 pos_vdivs_ += neg_vdivs_;
749 // Split up the divs if there are negative values but no negative divs
750 if ((min < 0) && (neg_vdivs_ == 0)) {
751 neg_vdivs_ = pos_vdivs_ / 2;
752 pos_vdivs_ -= neg_vdivs_;
756 // If there is still no positive div when we need it, add one
757 // (this can happen when pos_vdivs==neg_vdivs==0)
758 if ((max > 0) && (pos_vdivs_ == 0)) {
760 owner_->extents_changed(false, true);
763 // If there is still no negative div when we need it, add one
764 // (this can happen when pos_vdivs was 0 or 1 when trying to split)
765 if ((min < 0) && (neg_vdivs_ == 0)) {
767 owner_->extents_changed(false, true);
770 double min_value_per_div;
771 if ((pos_vdivs_ > 0) && (neg_vdivs_ > 0))
772 min_value_per_div = std::max(max / pos_vdivs_, -min / neg_vdivs_);
773 else if (pos_vdivs_ > 0)
774 min_value_per_div = max / pos_vdivs_;
776 min_value_per_div = -min / neg_vdivs_;
778 // Find first scale value that is bigger than the value we need
779 for (int i = MinScaleIndex; i < MaxScaleIndex; i++)
780 if (get_resolution(i) > min_value_per_div) {
788 void AnalogSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
790 // Add the standard options
791 Signal::populate_popup_form(parent, form);
793 QFormLayout *const layout = new QFormLayout;
795 // Add div-related settings
796 pvdiv_sb_ = new QSpinBox(parent);
797 pvdiv_sb_->setRange(0, MaximumVDivs);
798 pvdiv_sb_->setValue(pos_vdivs_);
799 connect(pvdiv_sb_, SIGNAL(valueChanged(int)),
800 this, SLOT(on_pos_vdivs_changed(int)));
801 layout->addRow(tr("Number of pos vertical divs"), pvdiv_sb_);
803 nvdiv_sb_ = new QSpinBox(parent);
804 nvdiv_sb_->setRange(0, MaximumVDivs);
805 nvdiv_sb_->setValue(neg_vdivs_);
806 connect(nvdiv_sb_, SIGNAL(valueChanged(int)),
807 this, SLOT(on_neg_vdivs_changed(int)));
808 layout->addRow(tr("Number of neg vertical divs"), nvdiv_sb_);
810 div_height_sb_ = new QSpinBox(parent);
811 div_height_sb_->setRange(20, 1000);
812 div_height_sb_->setSingleStep(5);
813 div_height_sb_->setSuffix(tr(" pixels"));
814 div_height_sb_->setValue(div_height_);
815 connect(div_height_sb_, SIGNAL(valueChanged(int)),
816 this, SLOT(on_div_height_changed(int)));
817 layout->addRow(tr("Div height"), div_height_sb_);
819 // Add the vertical resolution
820 resolution_cb_ = new QComboBox(parent);
822 for (int i = MinScaleIndex; i < MaxScaleIndex; i++) {
823 const QString label = QString("%1").arg(get_resolution(i));
824 resolution_cb_->insertItem(0, label, QVariant(i));
827 int cur_idx = resolution_cb_->findData(QVariant(scale_index_));
828 resolution_cb_->setCurrentIndex(cur_idx);
830 connect(resolution_cb_, SIGNAL(currentIndexChanged(int)),
831 this, SLOT(on_resolution_changed(int)));
833 QGridLayout *const vdiv_layout = new QGridLayout;
834 QLabel *const vdiv_unit = new QLabel(tr("V/div"));
835 vdiv_layout->addWidget(resolution_cb_, 0, 0);
836 vdiv_layout->addWidget(vdiv_unit, 0, 1);
838 layout->addRow(tr("Vertical resolution"), vdiv_layout);
840 // Add the autoranging checkbox
841 QCheckBox* autoranging_cb = new QCheckBox();
842 autoranging_cb->setCheckState(autoranging_ ? Qt::Checked : Qt::Unchecked);
844 connect(autoranging_cb, SIGNAL(stateChanged(int)),
845 this, SLOT(on_autoranging_changed(int)));
847 layout->addRow(tr("Autoranging"), autoranging_cb);
849 // Add the conversion type dropdown
850 conversion_cb_ = new QComboBox();
852 conversion_cb_->addItem(tr("none"),
853 SignalBase::NoConversion);
854 conversion_cb_->addItem(tr("to logic via threshold"),
855 SignalBase::A2LConversionByThreshold);
856 conversion_cb_->addItem(tr("to logic via schmitt-trigger"),
857 SignalBase::A2LConversionBySchmittTrigger);
859 cur_idx = conversion_cb_->findData(QVariant(base_->get_conversion_type()));
860 conversion_cb_->setCurrentIndex(cur_idx);
862 layout->addRow(tr("Conversion"), conversion_cb_);
864 connect(conversion_cb_, SIGNAL(currentIndexChanged(int)),
865 this, SLOT(on_conversion_changed(int)));
867 // Add the conversion threshold settings
868 conv_threshold_cb_ = new QComboBox();
869 conv_threshold_cb_->setEditable(true);
871 layout->addRow(tr("Conversion threshold(s)"), conv_threshold_cb_);
873 connect(conv_threshold_cb_, SIGNAL(currentIndexChanged(int)),
874 this, SLOT(on_conv_threshold_changed(int)));
875 connect(conv_threshold_cb_, SIGNAL(editTextChanged(const QString)),
876 this, SLOT(on_conv_threshold_changed())); // index will be -1
878 // Add the display type dropdown
879 display_type_cb_ = new QComboBox();
881 display_type_cb_->addItem(tr("analog"), DisplayAnalog);
882 display_type_cb_->addItem(tr("converted"), DisplayConverted);
883 display_type_cb_->addItem(tr("analog+converted"), DisplayBoth);
885 cur_idx = display_type_cb_->findData(QVariant(display_type_));
886 display_type_cb_->setCurrentIndex(cur_idx);
888 layout->addRow(tr("Show traces for"), display_type_cb_);
890 connect(display_type_cb_, SIGNAL(currentIndexChanged(int)),
891 this, SLOT(on_display_type_changed(int)));
893 // Update the conversion widget contents and states
894 update_conversion_widgets();
896 form->addRow(layout);
899 void AnalogSignal::on_min_max_changed(float min, float max)
905 perform_autoranging(false, false);
908 void AnalogSignal::on_pos_vdivs_changed(int vdivs)
910 if (vdivs == pos_vdivs_)
915 // There has to be at least one div, positive or negative
916 if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) {
919 pvdiv_sb_->setValue(pos_vdivs_);
923 perform_autoranging(true, true);
925 // It could be that a positive or negative div was added, so update
927 pvdiv_sb_->setValue(pos_vdivs_);
928 nvdiv_sb_->setValue(neg_vdivs_);
933 // Call order is important, otherwise the lazy event handler won't work
934 owner_->extents_changed(false, true);
935 owner_->row_item_appearance_changed(false, true);
939 void AnalogSignal::on_neg_vdivs_changed(int vdivs)
941 if (vdivs == neg_vdivs_)
946 // There has to be at least one div, positive or negative
947 if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) {
950 pvdiv_sb_->setValue(pos_vdivs_);
954 perform_autoranging(true, true);
956 // It could be that a positive or negative div was added, so update
958 pvdiv_sb_->setValue(pos_vdivs_);
959 nvdiv_sb_->setValue(neg_vdivs_);
964 // Call order is important, otherwise the lazy event handler won't work
965 owner_->extents_changed(false, true);
966 owner_->row_item_appearance_changed(false, true);
970 void AnalogSignal::on_div_height_changed(int height)
972 div_height_ = height;
976 // Call order is important, otherwise the lazy event handler won't work
977 owner_->extents_changed(false, true);
978 owner_->row_item_appearance_changed(false, true);
982 void AnalogSignal::on_resolution_changed(int index)
984 scale_index_ = resolution_cb_->itemData(index).toInt();
988 owner_->row_item_appearance_changed(false, true);
991 void AnalogSignal::on_autoranging_changed(int state)
993 autoranging_ = (state == Qt::Checked);
996 perform_autoranging(false, true);
999 // Call order is important, otherwise the lazy event handler won't work
1000 owner_->extents_changed(false, true);
1001 owner_->row_item_appearance_changed(false, true);
1005 void AnalogSignal::on_conversion_changed(int index)
1007 SignalBase::ConversionType old_conv_type = base_->get_conversion_type();
1009 SignalBase::ConversionType conv_type =
1010 (SignalBase::ConversionType)(conversion_cb_->itemData(index).toInt());
1012 if (conv_type != old_conv_type) {
1013 base_->set_conversion_type(conv_type);
1014 update_conversion_widgets();
1017 owner_->row_item_appearance_changed(false, true);
1021 void AnalogSignal::on_conv_threshold_changed(int index)
1023 SignalBase::ConversionType conv_type = base_->get_conversion_type();
1025 // Note: index is set to -1 if the text in the combo box matches none of
1026 // the entries in the combo box
1028 if ((index == -1) && (conv_threshold_cb_->currentText().length() == 0))
1031 // The combo box entry with the custom value has user_data set to -1
1032 const int user_data = conv_threshold_cb_->findText(
1033 conv_threshold_cb_->currentText());
1035 const bool use_custom_thr = (index == -1) || (user_data == -1);
1037 if (conv_type == SignalBase::A2LConversionByThreshold && use_custom_thr) {
1038 // Not one of the preset values, try to parse the combo box text
1039 // Note: Regex loosely based on
1040 // https://txt2re.com/index-c++.php3?s=0.1V&1&-13
1041 QString re1 = "([+-]?\\d*[\\.,]?\\d*)"; // Float value
1042 QString re2 = "([a-zA-Z]*)"; // SI unit
1043 QRegExp regex(re1 + re2);
1045 const QString text = conv_threshold_cb_->currentText();
1046 if (!regex.exactMatch(text))
1047 return; // String doesn't match the regex
1049 QStringList tokens = regex.capturedTexts();
1051 // For now, we simply assume that the unit is volt without modifiers
1052 const double thr = tokens.at(1).toDouble();
1054 // Only restart the conversion if the threshold was updated.
1055 // We're starting a delayed conversion because the user may still be
1056 // typing and the UI would lag if we kept on restarting it immediately
1057 if (base_->set_conversion_option("threshold_value", thr))
1058 base_->start_conversion(true);
1061 if (conv_type == SignalBase::A2LConversionBySchmittTrigger && use_custom_thr) {
1062 // Not one of the preset values, try to parse the combo box text
1063 // Note: Regex loosely based on
1064 // https://txt2re.com/index-c++.php3?s=0.1V/0.2V&2&14&-22&3&15
1065 QString re1 = "([+-]?\\d*[\\.,]?\\d*)"; // Float value
1066 QString re2 = "([a-zA-Z]*)"; // SI unit
1067 QString re3 = "\\/"; // Forward slash, not captured
1068 QString re4 = "([+-]?\\d*[\\.,]?\\d*)"; // Float value
1069 QString re5 = "([a-zA-Z]*)"; // SI unit
1070 QRegExp regex(re1 + re2 + re3 + re4 + re5);
1072 const QString text = conv_threshold_cb_->currentText();
1073 if (!regex.exactMatch(text))
1074 return; // String doesn't match the regex
1076 QStringList tokens = regex.capturedTexts();
1078 // For now, we simply assume that the unit is volt without modifiers
1079 const double low_thr = tokens.at(1).toDouble();
1080 const double high_thr = tokens.at(3).toDouble();
1082 // Only restart the conversion if one of the options was updated.
1083 // We're starting a delayed conversion because the user may still be
1084 // typing and the UI would lag if we kept on restarting it immediately
1085 bool o1 = base_->set_conversion_option("threshold_value_low", low_thr);
1086 bool o2 = base_->set_conversion_option("threshold_value_high", high_thr);
1088 base_->start_conversion(true); // Start delayed conversion
1091 base_->set_conversion_preset((SignalBase::ConversionPreset)index);
1093 // Immediately start the conversion if we're not using custom values
1094 // (i.e. we're using one of the presets)
1095 if (!use_custom_thr)
1096 base_->start_conversion();
1099 void AnalogSignal::on_delayed_conversion_starter()
1101 base_->start_conversion();
1104 void AnalogSignal::on_display_type_changed(int index)
1106 display_type_ = (DisplayType)(display_type_cb_->itemData(index).toInt());
1109 owner_->row_item_appearance_changed(false, true);
1112 void AnalogSignal::on_settingViewConversionThresholdDispMode_changed(const QVariant new_value)
1114 conversion_threshold_disp_mode_ = new_value.toInt();
1117 owner_->row_item_appearance_changed(false, true);
1120 } // namespace trace
1121 } // namespace views