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>
55 using std::numeric_limits;
57 using std::shared_ptr;
60 using pv::data::SignalBase;
66 const QColor AnalogSignal::SignalColours[4] = {
67 QColor(0xC4, 0xA0, 0x00), // Yellow
68 QColor(0x87, 0x20, 0x7A), // Magenta
69 QColor(0x20, 0x4A, 0x87), // Blue
70 QColor(0x4E, 0x9A, 0x06) // Green
73 const QPen AnalogSignal::AxisPen(QColor(0, 0, 0, 30 * 256 / 100), 2);
74 const QColor AnalogSignal::GridMajorColor = QColor(0, 0, 0, 40 * 256 / 100);
75 const QColor AnalogSignal::GridMinorColor = QColor(0, 0, 0, 20 * 256 / 100);
77 const QColor AnalogSignal::SamplingPointColour(0x77, 0x77, 0x77);
79 const QColor AnalogSignal::ThresholdColor = QColor(0, 0, 0, 30 * 256 / 100);
80 const QColor AnalogSignal::ThresholdColorLo = QColor(255, 0, 0, 8 * 256 / 100);
81 const QColor AnalogSignal::ThresholdColorNe = QColor(0, 0, 0, 6 * 256 / 100);
82 const QColor AnalogSignal::ThresholdColorHi = QColor(0, 255, 0, 8 * 256 / 100);
84 const int64_t AnalogSignal::TracePaintBlockSize = 1024 * 1024; // 4 MiB (due to float)
85 const float AnalogSignal::EnvelopeThreshold = 64.0f;
87 const int AnalogSignal::MaximumVDivs = 10;
88 const int AnalogSignal::MinScaleIndex = -6;
89 const int AnalogSignal::MaxScaleIndex = 7;
91 const int AnalogSignal::InfoTextMarginRight = 20;
92 const int AnalogSignal::InfoTextMarginBottom = 5;
94 AnalogSignal::AnalogSignal(
96 shared_ptr<data::SignalBase> base) :
97 Signal(session, base),
98 scale_index_(4), // 20 per div
99 scale_index_drag_offset_(0),
103 display_type_(DisplayBoth),
108 pv::data::Analog* analog_data =
109 dynamic_cast<pv::data::Analog*>(data().get());
111 connect(analog_data, SIGNAL(min_max_changed(float, float)),
112 this, SLOT(on_min_max_changed(float, float)));
115 div_height_ = gs.value(GlobalSettings::Key_View_DefaultDivHeight).toInt();
117 base_->set_colour(SignalColours[base_->index() % countof(SignalColours)]);
121 shared_ptr<pv::data::SignalData> AnalogSignal::data() const
123 return base_->analog_data();
126 void AnalogSignal::save_settings(QSettings &settings) const
128 settings.setValue("pos_vdivs", pos_vdivs_);
129 settings.setValue("neg_vdivs", neg_vdivs_);
130 settings.setValue("scale_index", scale_index_);
131 settings.setValue("display_type", display_type_);
132 settings.setValue("autoranging", autoranging_);
133 settings.setValue("div_height", div_height_);
136 void AnalogSignal::restore_settings(QSettings &settings)
138 if (settings.contains("pos_vdivs"))
139 pos_vdivs_ = settings.value("pos_vdivs").toInt();
141 if (settings.contains("neg_vdivs"))
142 neg_vdivs_ = settings.value("neg_vdivs").toInt();
144 if (settings.contains("scale_index")) {
145 scale_index_ = settings.value("scale_index").toInt();
149 if (settings.contains("display_type"))
150 display_type_ = (DisplayType)(settings.value("display_type").toInt());
152 if (settings.contains("autoranging"))
153 autoranging_ = settings.value("autoranging").toBool();
155 if (settings.contains("div_height")) {
156 const int old_height = div_height_;
157 div_height_ = settings.value("div_height").toInt();
159 if ((div_height_ != old_height) && owner_) {
160 // Call order is important, otherwise the lazy event handler won't work
161 owner_->extents_changed(false, true);
162 owner_->row_item_appearance_changed(false, true);
167 pair<int, int> AnalogSignal::v_extents() const
169 const int ph = pos_vdivs_ * div_height_;
170 const int nh = neg_vdivs_ * div_height_;
171 return make_pair(-ph, nh);
174 int AnalogSignal::scale_handle_offset() const
176 const int h = (pos_vdivs_ + neg_vdivs_) * div_height_;
178 return ((scale_index_drag_offset_ - scale_index_) * h / 4) - h / 2;
181 void AnalogSignal::scale_handle_dragged(int offset)
183 const int h = (pos_vdivs_ + neg_vdivs_) * div_height_;
185 scale_index_ = scale_index_drag_offset_ - (offset + h / 2) / (h / 4);
190 void AnalogSignal::scale_handle_drag_release()
192 scale_index_drag_offset_ = scale_index_;
196 void AnalogSignal::paint_back(QPainter &p, ViewItemPaintParams &pp)
198 if (!base_->enabled())
201 // TODO Register a change handler instead of querying this with every repaint
202 GlobalSettings settings;
203 const bool show_conversion_thresholds =
204 settings.value(GlobalSettings::Key_View_ShowConversionThresholds).toBool();
206 const vector<double> thresholds = base_->get_conversion_thresholds();
208 // Only display thresholds if we have some and we show analog samples
209 if ((thresholds.size() > 0) && show_conversion_thresholds &&
210 ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth))) {
212 const int visual_y = get_visual_y();
213 const pair<int, int> extents = v_extents();
214 const int top = visual_y + extents.first;
215 const int btm = visual_y + extents.second;
217 // Draw high/neutral/low areas
218 if (thresholds.size() == 2) {
219 const double thr_lo = visual_y - thresholds[0] * scale_;
220 const double thr_hi = visual_y - thresholds[1] * scale_;
222 p.fillRect(QRectF(pp.left(), top, pp.width(), thr_hi - top),
223 QBrush(ThresholdColorHi));
224 p.fillRect(QRectF(pp.left(), thr_hi, pp.width(), thr_lo - thr_hi),
225 QBrush(ThresholdColorNe));
226 p.fillRect(QRectF(pp.left(), thr_lo, pp.width(), btm - thr_lo),
227 QBrush(ThresholdColorLo));
229 const double thr = visual_y - thresholds[0] * scale_;
231 p.fillRect(QRectF(pp.left(), top, pp.width(), thr - top),
232 QBrush(ThresholdColorHi));
233 p.fillRect(QRectF(pp.left(), thr, pp.width(), btm - thr),
234 QBrush(ThresholdColorLo));
237 paint_axis(p, pp, get_visual_y());
239 Trace::paint_back(p, pp);
240 paint_axis(p, pp, get_visual_y());
244 void AnalogSignal::paint_mid(QPainter &p, ViewItemPaintParams &pp)
246 assert(base_->analog_data());
249 const int y = get_visual_y();
251 if (!base_->enabled())
254 if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) {
255 paint_grid(p, y, pp.left(), pp.right());
257 const deque< shared_ptr<pv::data::AnalogSegment> > &segments =
258 base_->analog_data()->analog_segments();
259 if (segments.empty())
262 const shared_ptr<pv::data::AnalogSegment> &segment =
265 const double pixels_offset = pp.pixels_offset();
266 const double samplerate = max(1.0, segment->samplerate());
267 const pv::util::Timestamp& start_time = segment->start_time();
268 const int64_t last_sample = segment->get_sample_count() - 1;
269 const double samples_per_pixel = samplerate * pp.scale();
270 const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
271 const pv::util::Timestamp end = start + samples_per_pixel * pp.width();
273 const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
274 (int64_t)0), last_sample);
275 const int64_t end_sample = min(max((ceil(end) + 1).convert_to<int64_t>(),
276 (int64_t)0), last_sample);
278 if (samples_per_pixel < EnvelopeThreshold)
279 paint_trace(p, segment, y, pp.left(),
280 start_sample, end_sample,
281 pixels_offset, samples_per_pixel);
283 paint_envelope(p, segment, y, pp.left(),
284 start_sample, end_sample,
285 pixels_offset, samples_per_pixel);
288 if ((display_type_ == DisplayConverted) || (display_type_ == DisplayBoth))
289 paint_logic_mid(p, pp);
292 void AnalogSignal::paint_fore(QPainter &p, ViewItemPaintParams &pp)
297 if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) {
298 const int y = get_visual_y();
300 // Show the info section on the right side of the trace
301 const QString infotext = QString("%1 V/div").arg(resolution_);
303 p.setPen(base_->colour());
304 p.setFont(QApplication::font());
306 const QRectF bounding_rect = QRectF(pp.left(),
307 y + v_extents().first,
308 pp.width() - InfoTextMarginRight,
309 v_extents().second - v_extents().first - InfoTextMarginBottom);
311 p.drawText(bounding_rect, Qt::AlignRight | Qt::AlignBottom, infotext);
315 void AnalogSignal::paint_grid(QPainter &p, int y, int left, int right)
317 p.setRenderHint(QPainter::Antialiasing, false);
319 GlobalSettings settings;
320 const bool show_analog_minor_grid =
321 settings.value(GlobalSettings::Key_View_ShowAnalogMinorGrid).toBool();
323 if (pos_vdivs_ > 0) {
324 p.setPen(QPen(GridMajorColor, 1, Qt::DashLine));
325 for (int i = 1; i <= pos_vdivs_; i++) {
326 const float dy = i * div_height_;
327 p.drawLine(QLineF(left, y - dy, right, y - dy));
331 if ((pos_vdivs_ > 0) && show_analog_minor_grid) {
332 p.setPen(QPen(GridMinorColor, 1, Qt::DashLine));
333 for (int i = 0; i < pos_vdivs_; i++) {
334 const float dy = i * div_height_;
335 const float dy25 = dy + (0.25 * div_height_);
336 const float dy50 = dy + (0.50 * div_height_);
337 const float dy75 = dy + (0.75 * div_height_);
338 p.drawLine(QLineF(left, y - dy25, right, y - dy25));
339 p.drawLine(QLineF(left, y - dy50, right, y - dy50));
340 p.drawLine(QLineF(left, y - dy75, right, y - dy75));
344 if (neg_vdivs_ > 0) {
345 p.setPen(QPen(GridMajorColor, 1, Qt::DashLine));
346 for (int i = 1; i <= neg_vdivs_; i++) {
347 const float dy = i * div_height_;
348 p.drawLine(QLineF(left, y + dy, right, y + dy));
352 if ((pos_vdivs_ > 0) && show_analog_minor_grid) {
353 p.setPen(QPen(GridMinorColor, 1, Qt::DashLine));
354 for (int i = 0; i < neg_vdivs_; i++) {
355 const float dy = i * div_height_;
356 const float dy25 = dy + (0.25 * div_height_);
357 const float dy50 = dy + (0.50 * div_height_);
358 const float dy75 = dy + (0.75 * div_height_);
359 p.drawLine(QLineF(left, y + dy25, right, y + dy25));
360 p.drawLine(QLineF(left, y + dy50, right, y + dy50));
361 p.drawLine(QLineF(left, y + dy75, right, y + dy75));
365 p.setRenderHint(QPainter::Antialiasing, true);
368 void AnalogSignal::paint_trace(QPainter &p,
369 const shared_ptr<pv::data::AnalogSegment> &segment,
370 int y, int left, const int64_t start, const int64_t end,
371 const double pixels_offset, const double samples_per_pixel)
376 // Calculate and paint the sampling points if enabled and useful
377 GlobalSettings settings;
378 const bool show_sampling_points =
379 settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() &&
380 (samples_per_pixel < 0.25);
382 p.setPen(base_->colour());
384 const int64_t points_count = end - start;
386 QPointF *points = new QPointF[points_count];
387 QPointF *point = points;
389 QRectF *sampling_points = nullptr;
390 if (show_sampling_points)
391 sampling_points = new QRectF[points_count];
392 QRectF *sampling_point = sampling_points;
394 int64_t sample_count = min(points_count, TracePaintBlockSize);
395 int64_t block_sample = 0;
396 float *sample_block = new float[TracePaintBlockSize];
397 segment->get_samples(start, start + sample_count, sample_block);
400 for (int64_t sample = start; sample != end; sample++, block_sample++) {
402 if (block_sample == TracePaintBlockSize) {
404 sample_count = min(points_count - sample, TracePaintBlockSize);
405 segment->get_samples(sample, sample + sample_count, sample_block);
408 const float x = (sample / samples_per_pixel -
409 pixels_offset) + left;
411 *point++ = QPointF(x, y - sample_block[block_sample] * scale_);
413 if (show_sampling_points)
415 QRectF(x - (w / 2), y - sample_block[block_sample] * scale_ - (w / 2), w, w);
417 delete[] sample_block;
419 p.drawPolyline(points, points_count);
421 if (show_sampling_points) {
422 p.setPen(SamplingPointColour);
423 p.drawRects(sampling_points, points_count);
424 delete[] sampling_points;
430 void AnalogSignal::paint_envelope(QPainter &p,
431 const shared_ptr<pv::data::AnalogSegment> &segment,
432 int y, int left, const int64_t start, const int64_t end,
433 const double pixels_offset, const double samples_per_pixel)
435 using pv::data::AnalogSegment;
437 AnalogSegment::EnvelopeSection e;
438 segment->get_envelope_section(e, start, end, samples_per_pixel);
443 p.setPen(QPen(Qt::NoPen));
444 p.setBrush(base_->colour());
446 QRectF *const rects = new QRectF[e.length];
447 QRectF *rect = rects;
449 for (uint64_t sample = 0; sample < e.length - 1; sample++) {
450 const float x = ((e.scale * sample + e.start) /
451 samples_per_pixel - pixels_offset) + left;
452 const AnalogSegment::EnvelopeSample *const s =
455 // We overlap this sample with the next so that vertical
456 // gaps do not appear during steep rising or falling edges
457 const float b = y - max(s->max, (s + 1)->min) * scale_;
458 const float t = y - min(s->min, (s + 1)->max) * scale_;
461 if (h >= 0.0f && h <= 1.0f)
463 if (h <= 0.0f && h >= -1.0f)
466 *rect++ = QRectF(x, t, 1.0f, h);
469 p.drawRects(rects, e.length);
475 void AnalogSignal::paint_logic_mid(QPainter &p, ViewItemPaintParams &pp)
479 vector< pair<int64_t, bool> > edges;
483 const int y = get_visual_y();
485 if (!base_->enabled() || !base_->logic_data())
488 const int signal_margin =
489 QFontMetrics(QApplication::font()).height() / 2;
491 const int ph = min(pos_vdivs_, 1) * div_height_;
492 const int nh = min(neg_vdivs_, 1) * div_height_;
493 const float high_offset = y - ph + signal_margin + 0.5f;
494 const float low_offset = y + nh - signal_margin - 0.5f;
496 const deque< shared_ptr<pv::data::LogicSegment> > &segments =
497 base_->logic_data()->logic_segments();
499 if (segments.empty())
502 const shared_ptr<pv::data::LogicSegment> &segment =
505 double samplerate = segment->samplerate();
507 // Show sample rate as 1Hz when it is unknown
508 if (samplerate == 0.0)
511 const double pixels_offset = pp.pixels_offset();
512 const pv::util::Timestamp& start_time = segment->start_time();
513 const int64_t last_sample = segment->get_sample_count() - 1;
514 const double samples_per_pixel = samplerate * pp.scale();
515 const double pixels_per_sample = 1 / samples_per_pixel;
516 const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
517 const pv::util::Timestamp end = start + samples_per_pixel * pp.width();
519 const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
520 (int64_t)0), last_sample);
521 const uint64_t end_sample = min(max(ceil(end).convert_to<int64_t>(),
522 (int64_t)0), last_sample);
524 segment->get_subsampled_edges(edges, start_sample, end_sample,
525 samples_per_pixel / LogicSignal::Oversampling, 0);
526 assert(edges.size() >= 2);
528 // Check whether we need to paint the sampling points
529 GlobalSettings settings;
530 const bool show_sampling_points =
531 settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() &&
532 (samples_per_pixel < 0.25);
534 vector<QRectF> sampling_points;
535 float sampling_point_x = 0.0f;
536 int64_t sampling_point_sample = start_sample;
539 if (show_sampling_points) {
540 sampling_points.reserve(end_sample - start_sample + 1);
541 sampling_point_x = (edges.cbegin()->first / samples_per_pixel - pixels_offset) + pp.left();
545 const unsigned int edge_count = edges.size() - 2;
546 QLineF *const edge_lines = new QLineF[edge_count];
549 for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) {
550 const float x = ((*i).first / samples_per_pixel -
551 pixels_offset) + pp.left();
552 *line++ = QLineF(x, high_offset, x, low_offset);
554 if (show_sampling_points)
555 while (sampling_point_sample < (*i).first) {
556 const float y = (*i).second ? low_offset : high_offset;
557 sampling_points.emplace_back(
558 QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
559 sampling_point_sample++;
560 sampling_point_x += pixels_per_sample;
564 // Calculate the sample points from the last edge to the end of the trace
565 if (show_sampling_points)
566 while ((uint64_t)sampling_point_sample <= end_sample) {
567 // Signal changed after the last edge, so the level is inverted
568 const float y = (edges.cend() - 1)->second ? high_offset : low_offset;
569 sampling_points.emplace_back(
570 QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
571 sampling_point_sample++;
572 sampling_point_x += pixels_per_sample;
575 p.setPen(LogicSignal::EdgeColour);
576 p.drawLines(edge_lines, edge_count);
580 const unsigned int max_cap_line_count = edges.size();
581 QLineF *const cap_lines = new QLineF[max_cap_line_count];
583 p.setPen(LogicSignal::HighColour);
584 paint_logic_caps(p, cap_lines, edges, true, samples_per_pixel,
585 pixels_offset, pp.left(), high_offset);
586 p.setPen(LogicSignal::LowColour);
587 paint_logic_caps(p, cap_lines, edges, false, samples_per_pixel,
588 pixels_offset, pp.left(), low_offset);
592 // Paint the sampling points
593 if (show_sampling_points) {
594 p.setPen(SamplingPointColour);
595 p.drawRects(sampling_points.data(), sampling_points.size());
599 void AnalogSignal::paint_logic_caps(QPainter &p, QLineF *const lines,
600 vector< pair<int64_t, bool> > &edges, bool level,
601 double samples_per_pixel, double pixels_offset, float x_offset,
604 QLineF *line = lines;
606 for (auto i = edges.begin(); i != (edges.end() - 1); i++)
607 if ((*i).second == level) {
609 ((*i).first / samples_per_pixel -
610 pixels_offset) + x_offset, y_offset,
611 ((*(i+1)).first / samples_per_pixel -
612 pixels_offset) + x_offset, y_offset);
615 p.drawLines(lines, line - lines);
618 float AnalogSignal::get_resolution(int scale_index)
620 const float seq[] = {1.0f, 2.0f, 5.0f};
622 const int offset = numeric_limits<int>::max() / (2 * countof(seq));
623 const div_t d = div((int)(scale_index + countof(seq) * offset),
626 return powf(10.0f, d.quot - offset) * seq[d.rem];
629 void AnalogSignal::update_scale()
631 resolution_ = get_resolution(scale_index_);
632 scale_ = div_height_ / resolution_;
635 void AnalogSignal::update_conversion_widgets()
637 SignalBase::ConversionType conv_type = base_->get_conversion_type();
639 // Enable or disable widgets depending on conversion state
640 conv_threshold_cb_->setEnabled(conv_type != SignalBase::NoConversion);
641 display_type_cb_->setEnabled(conv_type != SignalBase::NoConversion);
643 conv_threshold_cb_->clear();
645 vector < pair<QString, int> > presets = base_->get_conversion_presets();
647 // Prevent the combo box from firing the "edit text changed" signal
648 // as that would involuntarily select the first entry
649 conv_threshold_cb_->blockSignals(true);
651 // Set available options depending on chosen conversion
652 for (pair<QString, int> preset : presets)
653 conv_threshold_cb_->addItem(preset.first, preset.second);
655 map < QString, QVariant > options = base_->get_conversion_options();
657 if (conv_type == SignalBase::A2LConversionByThreshold) {
658 const vector<double> thresholds = base_->get_conversion_thresholds(
659 SignalBase::A2LConversionByThreshold, true);
660 conv_threshold_cb_->addItem(
661 QString("%1V").arg(QString::number(thresholds[0], 'f', 1)), -1);
664 if (conv_type == SignalBase::A2LConversionBySchmittTrigger) {
665 const vector<double> thresholds = base_->get_conversion_thresholds(
666 SignalBase::A2LConversionBySchmittTrigger, true);
667 conv_threshold_cb_->addItem(QString("%1V/%2V").arg(
668 QString::number(thresholds[0], 'f', 1),
669 QString::number(thresholds[1], 'f', 1)), -1);
672 int preset_id = base_->get_current_conversion_preset();
673 conv_threshold_cb_->setCurrentIndex(
674 conv_threshold_cb_->findData(preset_id));
676 conv_threshold_cb_->blockSignals(false);
679 void AnalogSignal::perform_autoranging(bool keep_divs, bool force_update)
681 const deque< shared_ptr<pv::data::AnalogSegment> > &segments =
682 base_->analog_data()->analog_segments();
684 if (segments.empty())
687 static double prev_min = 0, prev_max = 0;
688 double min = 0, max = 0;
690 for (shared_ptr<pv::data::AnalogSegment> segment : segments) {
691 pair<double, double> mm = segment->get_min_max();
692 min = std::min(min, mm.first);
693 max = std::max(max, mm.second);
696 if ((min == prev_min) && (max == prev_max) && !force_update)
702 // If we're allowed to alter the div assignment...
704 // Use all divs for the positive range if there are no negative values
705 if ((min == 0) && (neg_vdivs_ > 0)) {
706 pos_vdivs_ += neg_vdivs_;
710 // Split up the divs if there are negative values but no negative divs
711 if ((min < 0) && (neg_vdivs_ == 0)) {
712 neg_vdivs_ = pos_vdivs_ / 2;
713 pos_vdivs_ -= neg_vdivs_;
717 // If there is still no positive div when we need it, add one
718 // (this can happen when pos_vdivs==neg_vdivs==0)
719 if ((max > 0) && (pos_vdivs_ == 0)) {
721 owner_->extents_changed(false, true);
724 // If there is still no negative div when we need it, add one
725 // (this can happen when pos_vdivs was 0 or 1 when trying to split)
726 if ((min < 0) && (neg_vdivs_ == 0)) {
728 owner_->extents_changed(false, true);
731 double min_value_per_div;
732 if ((pos_vdivs_ > 0) && (neg_vdivs_ > 0))
733 min_value_per_div = std::max(max / pos_vdivs_, -min / neg_vdivs_);
734 else if (pos_vdivs_ > 0)
735 min_value_per_div = max / pos_vdivs_;
737 min_value_per_div = -min / neg_vdivs_;
739 // Find first scale value that is bigger than the value we need
740 for (int i = MinScaleIndex; i < MaxScaleIndex; i++)
741 if (get_resolution(i) > min_value_per_div) {
749 void AnalogSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
751 // Add the standard options
752 Signal::populate_popup_form(parent, form);
754 QFormLayout *const layout = new QFormLayout;
756 // Add div-related settings
757 pvdiv_sb_ = new QSpinBox(parent);
758 pvdiv_sb_->setRange(0, MaximumVDivs);
759 pvdiv_sb_->setValue(pos_vdivs_);
760 connect(pvdiv_sb_, SIGNAL(valueChanged(int)),
761 this, SLOT(on_pos_vdivs_changed(int)));
762 layout->addRow(tr("Number of pos vertical divs"), pvdiv_sb_);
764 nvdiv_sb_ = new QSpinBox(parent);
765 nvdiv_sb_->setRange(0, MaximumVDivs);
766 nvdiv_sb_->setValue(neg_vdivs_);
767 connect(nvdiv_sb_, SIGNAL(valueChanged(int)),
768 this, SLOT(on_neg_vdivs_changed(int)));
769 layout->addRow(tr("Number of neg vertical divs"), nvdiv_sb_);
771 div_height_sb_ = new QSpinBox(parent);
772 div_height_sb_->setRange(20, 1000);
773 div_height_sb_->setSingleStep(5);
774 div_height_sb_->setSuffix(tr(" pixels"));
775 div_height_sb_->setValue(div_height_);
776 connect(div_height_sb_, SIGNAL(valueChanged(int)),
777 this, SLOT(on_div_height_changed(int)));
778 layout->addRow(tr("Div height"), div_height_sb_);
780 // Add the vertical resolution
781 resolution_cb_ = new QComboBox(parent);
783 for (int i = MinScaleIndex; i < MaxScaleIndex; i++) {
784 const QString label = QString("%1").arg(get_resolution(i));
785 resolution_cb_->insertItem(0, label, QVariant(i));
788 int cur_idx = resolution_cb_->findData(QVariant(scale_index_));
789 resolution_cb_->setCurrentIndex(cur_idx);
791 connect(resolution_cb_, SIGNAL(currentIndexChanged(int)),
792 this, SLOT(on_resolution_changed(int)));
794 QGridLayout *const vdiv_layout = new QGridLayout;
795 QLabel *const vdiv_unit = new QLabel(tr("V/div"));
796 vdiv_layout->addWidget(resolution_cb_, 0, 0);
797 vdiv_layout->addWidget(vdiv_unit, 0, 1);
799 layout->addRow(tr("Vertical resolution"), vdiv_layout);
801 // Add the autoranging checkbox
802 QCheckBox* autoranging_cb = new QCheckBox();
803 autoranging_cb->setCheckState(autoranging_ ? Qt::Checked : Qt::Unchecked);
805 connect(autoranging_cb, SIGNAL(stateChanged(int)),
806 this, SLOT(on_autoranging_changed(int)));
808 layout->addRow(tr("Autoranging"), autoranging_cb);
810 // Add the conversion type dropdown
811 conversion_cb_ = new QComboBox();
813 conversion_cb_->addItem(tr("none"),
814 SignalBase::NoConversion);
815 conversion_cb_->addItem(tr("to logic via threshold"),
816 SignalBase::A2LConversionByThreshold);
817 conversion_cb_->addItem(tr("to logic via schmitt-trigger"),
818 SignalBase::A2LConversionBySchmittTrigger);
820 cur_idx = conversion_cb_->findData(QVariant(base_->get_conversion_type()));
821 conversion_cb_->setCurrentIndex(cur_idx);
823 layout->addRow(tr("Conversion"), conversion_cb_);
825 connect(conversion_cb_, SIGNAL(currentIndexChanged(int)),
826 this, SLOT(on_conversion_changed(int)));
828 // Add the conversion threshold settings
829 conv_threshold_cb_ = new QComboBox();
830 conv_threshold_cb_->setEditable(true);
832 layout->addRow(tr("Conversion threshold(s)"), conv_threshold_cb_);
834 connect(conv_threshold_cb_, SIGNAL(currentIndexChanged(int)),
835 this, SLOT(on_conv_threshold_changed(int)));
836 connect(conv_threshold_cb_, SIGNAL(editTextChanged(const QString)),
837 this, SLOT(on_conv_threshold_changed())); // index will be -1
839 // Add the display type dropdown
840 display_type_cb_ = new QComboBox();
842 display_type_cb_->addItem(tr("analog"), DisplayAnalog);
843 display_type_cb_->addItem(tr("converted"), DisplayConverted);
844 display_type_cb_->addItem(tr("analog+converted"), DisplayBoth);
846 cur_idx = display_type_cb_->findData(QVariant(display_type_));
847 display_type_cb_->setCurrentIndex(cur_idx);
849 layout->addRow(tr("Show traces for"), display_type_cb_);
851 connect(display_type_cb_, SIGNAL(currentIndexChanged(int)),
852 this, SLOT(on_display_type_changed(int)));
854 // Update the conversion widget contents and states
855 update_conversion_widgets();
857 form->addRow(layout);
860 void AnalogSignal::on_min_max_changed(float min, float max)
866 perform_autoranging(false, false);
869 void AnalogSignal::on_pos_vdivs_changed(int vdivs)
871 if (vdivs == pos_vdivs_)
876 // There has to be at least one div, positive or negative
877 if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) {
880 pvdiv_sb_->setValue(pos_vdivs_);
884 perform_autoranging(true, true);
886 // It could be that a positive or negative div was added, so update
888 pvdiv_sb_->setValue(pos_vdivs_);
889 nvdiv_sb_->setValue(neg_vdivs_);
894 // Call order is important, otherwise the lazy event handler won't work
895 owner_->extents_changed(false, true);
896 owner_->row_item_appearance_changed(false, true);
900 void AnalogSignal::on_neg_vdivs_changed(int vdivs)
902 if (vdivs == neg_vdivs_)
907 // There has to be at least one div, positive or negative
908 if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) {
911 pvdiv_sb_->setValue(pos_vdivs_);
915 perform_autoranging(true, true);
917 // It could be that a positive or negative div was added, so update
919 pvdiv_sb_->setValue(pos_vdivs_);
920 nvdiv_sb_->setValue(neg_vdivs_);
925 // Call order is important, otherwise the lazy event handler won't work
926 owner_->extents_changed(false, true);
927 owner_->row_item_appearance_changed(false, true);
931 void AnalogSignal::on_div_height_changed(int height)
933 div_height_ = height;
937 // Call order is important, otherwise the lazy event handler won't work
938 owner_->extents_changed(false, true);
939 owner_->row_item_appearance_changed(false, true);
943 void AnalogSignal::on_resolution_changed(int index)
945 scale_index_ = resolution_cb_->itemData(index).toInt();
949 owner_->row_item_appearance_changed(false, true);
952 void AnalogSignal::on_autoranging_changed(int state)
954 autoranging_ = (state == Qt::Checked);
957 perform_autoranging(false, true);
960 // Call order is important, otherwise the lazy event handler won't work
961 owner_->extents_changed(false, true);
962 owner_->row_item_appearance_changed(false, true);
966 void AnalogSignal::on_conversion_changed(int index)
968 SignalBase::ConversionType old_conv_type = base_->get_conversion_type();
970 SignalBase::ConversionType conv_type =
971 (SignalBase::ConversionType)(conversion_cb_->itemData(index).toInt());
973 if (conv_type != old_conv_type) {
974 base_->set_conversion_type(conv_type);
975 update_conversion_widgets();
978 owner_->row_item_appearance_changed(false, true);
982 void AnalogSignal::on_conv_threshold_changed(int index)
984 SignalBase::ConversionType conv_type = base_->get_conversion_type();
986 // Note: index is set to -1 if the text in the combo box matches none of
987 // the entries in the combo box
989 if ((index == -1) && (conv_threshold_cb_->currentText().length() == 0))
992 // The combo box entry with the custom value has user_data set to -1
993 const int user_data = conv_threshold_cb_->findText(
994 conv_threshold_cb_->currentText());
996 const bool use_custom_thr = (index == -1) || (user_data == -1);
998 if (conv_type == SignalBase::A2LConversionByThreshold && use_custom_thr) {
999 // Not one of the preset values, try to parse the combo box text
1000 // Note: Regex loosely based on
1001 // https://txt2re.com/index-c++.php3?s=0.1V&1&-13
1002 QString re1 = "([+-]?\\d*[\\.,]?\\d*)"; // Float value
1003 QString re2 = "([a-zA-Z]*)"; // SI unit
1004 QRegExp regex(re1 + re2);
1006 const QString text = conv_threshold_cb_->currentText();
1007 if (!regex.exactMatch(text))
1008 return; // String doesn't match the regex
1010 QStringList tokens = regex.capturedTexts();
1012 // For now, we simply assume that the unit is volt without modifiers
1013 const double thr = tokens.at(1).toDouble();
1015 // Only restart the conversion if the threshold was updated.
1016 // We're starting a delayed conversion because the user may still be
1017 // typing and the UI would lag if we kept on restarting it immediately
1018 if (base_->set_conversion_option("threshold_value", thr))
1019 base_->start_conversion(true);
1022 if (conv_type == SignalBase::A2LConversionBySchmittTrigger && use_custom_thr) {
1023 // Not one of the preset values, try to parse the combo box text
1024 // Note: Regex loosely based on
1025 // https://txt2re.com/index-c++.php3?s=0.1V/0.2V&2&14&-22&3&15
1026 QString re1 = "([+-]?\\d*[\\.,]?\\d*)"; // Float value
1027 QString re2 = "([a-zA-Z]*)"; // SI unit
1028 QString re3 = "\\/"; // Forward slash, not captured
1029 QString re4 = "([+-]?\\d*[\\.,]?\\d*)"; // Float value
1030 QString re5 = "([a-zA-Z]*)"; // SI unit
1031 QRegExp regex(re1 + re2 + re3 + re4 + re5);
1033 const QString text = conv_threshold_cb_->currentText();
1034 if (!regex.exactMatch(text))
1035 return; // String doesn't match the regex
1037 QStringList tokens = regex.capturedTexts();
1039 // For now, we simply assume that the unit is volt without modifiers
1040 const double low_thr = tokens.at(1).toDouble();
1041 const double high_thr = tokens.at(3).toDouble();
1043 // Only restart the conversion if one of the options was updated.
1044 // We're starting a delayed conversion because the user may still be
1045 // typing and the UI would lag if we kept on restarting it immediately
1046 bool o1 = base_->set_conversion_option("threshold_value_low", low_thr);
1047 bool o2 = base_->set_conversion_option("threshold_value_high", high_thr);
1049 base_->start_conversion(true); // Start delayed conversion
1052 base_->set_conversion_preset((SignalBase::ConversionPreset)index);
1054 // Immediately start the conversion if we're not using custom values
1055 // (i.e. we're using one of the presets)
1056 if (!use_custom_thr)
1057 base_->start_conversion();
1060 void AnalogSignal::on_delayed_conversion_starter()
1062 base_->start_conversion();
1065 void AnalogSignal::on_display_type_changed(int index)
1067 display_type_ = (DisplayType)(display_type_cb_->itemData(index).toInt());
1070 owner_->row_item_appearance_changed(false, true);
1073 } // namespace trace
1074 } // namespace views