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>
32 #include <QFormLayout>
33 #include <QGridLayout>
37 #include "analogsignal.hpp"
38 #include "logicsignal.hpp"
41 #include "pv/data/analog.hpp"
42 #include "pv/data/analogsegment.hpp"
43 #include "pv/data/logic.hpp"
44 #include "pv/data/logicsegment.hpp"
45 #include "pv/data/signalbase.hpp"
46 #include "pv/globalsettings.hpp"
48 #include <libsigrokcxx/libsigrokcxx.hpp>
56 using std::numeric_limits;
57 using std::out_of_range;
59 using std::shared_ptr;
62 using pv::data::SignalBase;
68 const QColor AnalogSignal::SignalColors[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::SamplingPointColor(0x77, 0x77, 0x77);
80 const QColor AnalogSignal::SamplingPointColorLo = QColor(200, 0, 0, 80 * 256 / 100);
81 const QColor AnalogSignal::SamplingPointColorNe = QColor(0, 0, 0, 80 * 256 / 100);
82 const QColor AnalogSignal::SamplingPointColorHi = 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)));
120 conversion_threshold_disp_mode_ =
121 gs.value(GlobalSettings::Key_View_ConversionThresholdDispMode).toInt();
123 div_height_ = gs.value(GlobalSettings::Key_View_DefaultDivHeight).toInt();
125 base_->set_color(SignalColors[base_->index() % countof(SignalColors)]);
129 AnalogSignal::~AnalogSignal()
131 GlobalSettings::remove_change_handler(this);
134 shared_ptr<pv::data::SignalData> AnalogSignal::data() const
136 return base_->analog_data();
139 void AnalogSignal::save_settings(QSettings &settings) const
141 settings.setValue("pos_vdivs", pos_vdivs_);
142 settings.setValue("neg_vdivs", neg_vdivs_);
143 settings.setValue("scale_index", scale_index_);
144 settings.setValue("display_type", display_type_);
145 settings.setValue("autoranging", autoranging_);
146 settings.setValue("div_height", div_height_);
149 void AnalogSignal::restore_settings(QSettings &settings)
151 if (settings.contains("pos_vdivs"))
152 pos_vdivs_ = settings.value("pos_vdivs").toInt();
154 if (settings.contains("neg_vdivs"))
155 neg_vdivs_ = settings.value("neg_vdivs").toInt();
157 if (settings.contains("scale_index")) {
158 scale_index_ = settings.value("scale_index").toInt();
162 if (settings.contains("display_type"))
163 display_type_ = (DisplayType)(settings.value("display_type").toInt());
165 if (settings.contains("autoranging"))
166 autoranging_ = settings.value("autoranging").toBool();
168 if (settings.contains("div_height")) {
169 const int old_height = div_height_;
170 div_height_ = settings.value("div_height").toInt();
172 if ((div_height_ != old_height) && owner_) {
173 // Call order is important, otherwise the lazy event handler won't work
174 owner_->extents_changed(false, true);
175 owner_->row_item_appearance_changed(false, true);
180 pair<int, int> AnalogSignal::v_extents() const
182 const int ph = pos_vdivs_ * div_height_;
183 const int nh = neg_vdivs_ * div_height_;
184 return make_pair(-ph, nh);
187 int AnalogSignal::scale_handle_offset() const
189 const int h = (pos_vdivs_ + neg_vdivs_) * div_height_;
191 return ((scale_index_drag_offset_ - scale_index_) * h / 4) - h / 2;
194 void AnalogSignal::scale_handle_dragged(int offset)
196 const int h = (pos_vdivs_ + neg_vdivs_) * div_height_;
198 scale_index_ = scale_index_drag_offset_ - (offset + h / 2) / (h / 4);
203 void AnalogSignal::scale_handle_drag_release()
205 scale_index_drag_offset_ = scale_index_;
209 void AnalogSignal::on_setting_changed(const QString &key, const QVariant &value)
211 Signal::on_setting_changed(key, value);
213 if (key == GlobalSettings::Key_View_ConversionThresholdDispMode)
214 on_settingViewConversionThresholdDispMode_changed(value);
217 void AnalogSignal::paint_back(QPainter &p, ViewItemPaintParams &pp)
219 if (!base_->enabled())
223 conversion_threshold_disp_mode_ == GlobalSettings::ConvThrDispMode_Background;
225 const vector<double> thresholds = base_->get_conversion_thresholds();
227 // Only display thresholds if we have some and we show analog samples
228 if ((thresholds.size() > 0) && paint_thr_bg &&
229 ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth))) {
231 const int visual_y = get_visual_y();
232 const pair<int, int> extents = v_extents();
233 const int top = visual_y + extents.first;
234 const int btm = visual_y + extents.second;
236 // Draw high/neutral/low areas
237 if (thresholds.size() == 2) {
238 int thr_lo = visual_y - thresholds[0] * scale_;
239 int thr_hi = visual_y - thresholds[1] * scale_;
240 thr_lo = min(max(thr_lo, top), btm);
241 thr_hi = min(max(thr_hi, top), btm);
243 p.fillRect(QRectF(pp.left(), top, pp.width(), thr_hi - top),
244 QBrush(ThresholdColorHi));
245 p.fillRect(QRectF(pp.left(), thr_hi, pp.width(), thr_lo - thr_hi),
246 QBrush(ThresholdColorNe));
247 p.fillRect(QRectF(pp.left(), thr_lo, pp.width(), btm - thr_lo),
248 QBrush(ThresholdColorLo));
250 int thr = visual_y - thresholds[0] * scale_;
251 thr = min(max(thr, top), btm);
253 p.fillRect(QRectF(pp.left(), top, pp.width(), thr - top),
254 QBrush(ThresholdColorHi));
255 p.fillRect(QRectF(pp.left(), thr, pp.width(), btm - thr),
256 QBrush(ThresholdColorLo));
259 paint_axis(p, pp, get_visual_y());
261 Trace::paint_back(p, pp);
262 paint_axis(p, pp, get_visual_y());
266 void AnalogSignal::paint_mid(QPainter &p, ViewItemPaintParams &pp)
268 assert(base_->analog_data());
271 const int y = get_visual_y();
273 if (!base_->enabled())
276 if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) {
277 paint_grid(p, y, pp.left(), pp.right());
279 shared_ptr<pv::data::AnalogSegment> segment = get_analog_segment_to_paint();
280 if (!segment || (segment->get_sample_count() == 0))
283 const double pixels_offset = pp.pixels_offset();
284 const double samplerate = max(1.0, segment->samplerate());
285 const pv::util::Timestamp& start_time = segment->start_time();
286 const int64_t last_sample = (int64_t)segment->get_sample_count() - 1;
287 const double samples_per_pixel = samplerate * pp.scale();
288 const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
289 const pv::util::Timestamp end = start + samples_per_pixel * pp.width();
291 const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
292 (int64_t)0), last_sample);
293 const int64_t end_sample = min(max((ceil(end) + 1).convert_to<int64_t>(),
294 (int64_t)0), last_sample);
296 if (samples_per_pixel < EnvelopeThreshold)
297 paint_trace(p, segment, y, pp.left(),
298 start_sample, end_sample,
299 pixels_offset, samples_per_pixel);
301 paint_envelope(p, segment, y, pp.left(),
302 start_sample, end_sample,
303 pixels_offset, samples_per_pixel);
306 if ((display_type_ == DisplayConverted) || (display_type_ == DisplayBoth))
307 paint_logic_mid(p, pp);
310 void AnalogSignal::paint_fore(QPainter &p, ViewItemPaintParams &pp)
315 if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) {
316 const int y = get_visual_y();
318 // Show the info section on the right side of the trace
319 const QString infotext = QString("%1 V/div").arg(resolution_);
321 p.setPen(base_->color());
322 p.setFont(QApplication::font());
324 const QRectF bounding_rect = QRectF(pp.left(),
325 y + v_extents().first,
326 pp.width() - InfoTextMarginRight,
327 v_extents().second - v_extents().first - InfoTextMarginBottom);
329 p.drawText(bounding_rect, Qt::AlignRight | Qt::AlignBottom, infotext);
332 if (show_hover_marker_)
333 paint_hover_marker(p);
336 void AnalogSignal::paint_grid(QPainter &p, int y, int left, int right)
338 p.setRenderHint(QPainter::Antialiasing, false);
340 GlobalSettings settings;
341 const bool show_analog_minor_grid =
342 settings.value(GlobalSettings::Key_View_ShowAnalogMinorGrid).toBool();
344 if (pos_vdivs_ > 0) {
345 p.setPen(QPen(GridMajorColor, 1, Qt::DashLine));
346 for (int i = 1; i <= pos_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 < pos_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 if (neg_vdivs_ > 0) {
366 p.setPen(QPen(GridMajorColor, 1, Qt::DashLine));
367 for (int i = 1; i <= neg_vdivs_; i++) {
368 const float dy = i * div_height_;
369 p.drawLine(QLineF(left, y + dy, right, y + dy));
373 if ((pos_vdivs_ > 0) && show_analog_minor_grid) {
374 p.setPen(QPen(GridMinorColor, 1, Qt::DashLine));
375 for (int i = 0; i < neg_vdivs_; i++) {
376 const float dy = i * div_height_;
377 const float dy25 = dy + (0.25 * div_height_);
378 const float dy50 = dy + (0.50 * div_height_);
379 const float dy75 = dy + (0.75 * div_height_);
380 p.drawLine(QLineF(left, y + dy25, right, y + dy25));
381 p.drawLine(QLineF(left, y + dy50, right, y + dy50));
382 p.drawLine(QLineF(left, y + dy75, right, y + dy75));
386 p.setRenderHint(QPainter::Antialiasing, true);
389 void AnalogSignal::paint_trace(QPainter &p,
390 const shared_ptr<pv::data::AnalogSegment> &segment,
391 int y, int left, const int64_t start, const int64_t end,
392 const double pixels_offset, const double samples_per_pixel)
397 bool paint_thr_dots =
398 (base_->get_conversion_type() != data::SignalBase::NoConversion) &&
399 (conversion_threshold_disp_mode_ == GlobalSettings::ConvThrDispMode_Dots);
401 vector<double> thresholds;
403 thresholds = base_->get_conversion_thresholds();
405 // Calculate and paint the sampling points if enabled and useful
406 GlobalSettings settings;
407 const bool show_sampling_points =
408 (settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() ||
409 paint_thr_dots) && (samples_per_pixel < 0.25);
411 p.setPen(base_->color());
413 const int64_t points_count = end - start + 1;
415 QPointF *points = new QPointF[points_count];
416 QPointF *point = points;
418 vector<QRectF> sampling_points[3];
420 int64_t sample_count = min(points_count, TracePaintBlockSize);
421 int64_t block_sample = 0;
422 float *sample_block = new float[TracePaintBlockSize];
423 segment->get_samples(start, start + sample_count, sample_block);
426 for (int64_t sample = start; sample <= end; sample++, block_sample++) {
428 if (block_sample == TracePaintBlockSize) {
430 sample_count = min(points_count - sample, TracePaintBlockSize);
431 segment->get_samples(sample, sample + sample_count, sample_block);
434 const float x = left + (sample / samples_per_pixel - pixels_offset);
436 *point++ = QPointF(x, y - sample_block[block_sample] * scale_);
438 if (show_sampling_points) {
439 int idx = 0; // Neutral
441 if (paint_thr_dots) {
442 if (thresholds.size() == 1)
443 idx = (sample_block[block_sample] >= thresholds[0]) ? 2 : 1;
444 else if (thresholds.size() == 2) {
445 if (sample_block[block_sample] > thresholds[1])
447 else if (sample_block[block_sample] < thresholds[0])
452 sampling_points[idx].emplace_back(x - (w / 2), y - sample_block[block_sample] * scale_ - (w / 2), w, w);
455 delete[] sample_block;
457 p.drawPolyline(points, points_count);
459 if (show_sampling_points) {
460 if (paint_thr_dots) {
461 p.setPen(SamplingPointColorNe);
462 p.drawRects(sampling_points[0].data(), sampling_points[0].size());
463 p.setPen(SamplingPointColorLo);
464 p.drawRects(sampling_points[1].data(), sampling_points[1].size());
465 p.setPen(SamplingPointColorHi);
466 p.drawRects(sampling_points[2].data(), sampling_points[2].size());
468 p.setPen(SamplingPointColor);
469 p.drawRects(sampling_points[0].data(), sampling_points[0].size());
476 void AnalogSignal::paint_envelope(QPainter &p,
477 const shared_ptr<pv::data::AnalogSegment> &segment,
478 int y, int left, const int64_t start, const int64_t end,
479 const double pixels_offset, const double samples_per_pixel)
481 using pv::data::AnalogSegment;
483 AnalogSegment::EnvelopeSection e;
484 segment->get_envelope_section(e, start, end, samples_per_pixel);
489 p.setPen(QPen(Qt::NoPen));
490 p.setBrush(base_->color());
492 QRectF *const rects = new QRectF[e.length];
493 QRectF *rect = rects;
495 for (uint64_t sample = 0; sample < e.length - 1; sample++) {
496 const float x = ((e.scale * sample + e.start) /
497 samples_per_pixel - pixels_offset) + left;
498 const AnalogSegment::EnvelopeSample *const s =
501 // We overlap this sample with the next so that vertical
502 // gaps do not appear during steep rising or falling edges
503 const float b = y - max(s->max, (s + 1)->min) * scale_;
504 const float t = y - min(s->min, (s + 1)->max) * scale_;
507 if (h >= 0.0f && h <= 1.0f)
509 if (h <= 0.0f && h >= -1.0f)
512 *rect++ = QRectF(x, t, 1.0f, h);
515 p.drawRects(rects, e.length);
521 void AnalogSignal::paint_logic_mid(QPainter &p, ViewItemPaintParams &pp)
525 vector< pair<int64_t, bool> > edges;
529 const int y = get_visual_y();
531 if (!base_->enabled() || !base_->logic_data())
534 const int signal_margin =
535 QFontMetrics(QApplication::font()).height() / 2;
537 const int ph = min(pos_vdivs_, 1) * div_height_;
538 const int nh = min(neg_vdivs_, 1) * div_height_;
539 const float high_offset = y - ph + signal_margin + 0.5f;
540 const float low_offset = y + nh - signal_margin - 0.5f;
542 shared_ptr<pv::data::LogicSegment> segment = get_logic_segment_to_paint();
543 if (!segment || (segment->get_sample_count() == 0))
546 double samplerate = segment->samplerate();
548 // Show sample rate as 1Hz when it is unknown
549 if (samplerate == 0.0)
552 const double pixels_offset = pp.pixels_offset();
553 const pv::util::Timestamp& start_time = segment->start_time();
554 const int64_t last_sample = (int64_t)segment->get_sample_count() - 1;
555 const double samples_per_pixel = samplerate * pp.scale();
556 const double pixels_per_sample = 1 / samples_per_pixel;
557 const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
558 const pv::util::Timestamp end = start + samples_per_pixel * pp.width();
560 const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
561 (int64_t)0), last_sample);
562 const uint64_t end_sample = min(max(ceil(end).convert_to<int64_t>(),
563 (int64_t)0), last_sample);
565 segment->get_subsampled_edges(edges, start_sample, end_sample,
566 samples_per_pixel / LogicSignal::Oversampling, 0);
567 assert(edges.size() >= 2);
569 // Check whether we need to paint the sampling points
570 GlobalSettings settings;
571 const bool show_sampling_points =
572 settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() &&
573 (samples_per_pixel < 0.25);
575 vector<QRectF> sampling_points;
576 float sampling_point_x = 0.0f;
577 int64_t sampling_point_sample = start_sample;
580 if (show_sampling_points) {
581 sampling_points.reserve(end_sample - start_sample + 1);
582 sampling_point_x = (edges.cbegin()->first / samples_per_pixel - pixels_offset) + pp.left();
586 const unsigned int edge_count = edges.size() - 2;
587 QLineF *const edge_lines = new QLineF[edge_count];
590 for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) {
591 const float x = ((*i).first / samples_per_pixel -
592 pixels_offset) + pp.left();
593 *line++ = QLineF(x, high_offset, x, low_offset);
595 if (show_sampling_points)
596 while (sampling_point_sample < (*i).first) {
597 const float y = (*i).second ? low_offset : high_offset;
598 sampling_points.emplace_back(
599 QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
600 sampling_point_sample++;
601 sampling_point_x += pixels_per_sample;
605 // Calculate the sample points from the last edge to the end of the trace
606 if (show_sampling_points)
607 while ((uint64_t)sampling_point_sample <= end_sample) {
608 // Signal changed after the last edge, so the level is inverted
609 const float y = (edges.cend() - 1)->second ? high_offset : low_offset;
610 sampling_points.emplace_back(
611 QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
612 sampling_point_sample++;
613 sampling_point_x += pixels_per_sample;
616 p.setPen(LogicSignal::EdgeColor);
617 p.drawLines(edge_lines, edge_count);
621 const unsigned int max_cap_line_count = edges.size();
622 QLineF *const cap_lines = new QLineF[max_cap_line_count];
624 p.setPen(LogicSignal::HighColor);
625 paint_logic_caps(p, cap_lines, edges, true, samples_per_pixel,
626 pixels_offset, pp.left(), high_offset);
627 p.setPen(LogicSignal::LowColor);
628 paint_logic_caps(p, cap_lines, edges, false, samples_per_pixel,
629 pixels_offset, pp.left(), low_offset);
633 // Paint the sampling points
634 if (show_sampling_points) {
635 p.setPen(SamplingPointColor);
636 p.drawRects(sampling_points.data(), sampling_points.size());
640 void AnalogSignal::paint_logic_caps(QPainter &p, QLineF *const lines,
641 vector< pair<int64_t, bool> > &edges, bool level,
642 double samples_per_pixel, double pixels_offset, float x_offset,
645 QLineF *line = lines;
647 for (auto i = edges.begin(); i != (edges.end() - 1); i++)
648 if ((*i).second == level) {
650 ((*i).first / samples_per_pixel -
651 pixels_offset) + x_offset, y_offset,
652 ((*(i+1)).first / samples_per_pixel -
653 pixels_offset) + x_offset, y_offset);
656 p.drawLines(lines, line - lines);
659 shared_ptr<pv::data::AnalogSegment> AnalogSignal::get_analog_segment_to_paint() const
661 shared_ptr<pv::data::AnalogSegment> segment;
663 const deque< shared_ptr<pv::data::AnalogSegment> > &segments =
664 base_->analog_data()->analog_segments();
666 if (!segments.empty()) {
667 if (segment_display_mode_ == ShowLastSegmentOnly)
668 segment = segments.back();
670 if ((segment_display_mode_ == ShowSingleSegmentOnly) ||
671 (segment_display_mode_ == ShowLastCompleteSegmentOnly)) {
673 segment = segments.at(current_segment_);
674 } catch (out_of_range&) {
675 qDebug() << "Current analog segment out of range for signal" << base_->name() << ":" << current_segment_;
683 shared_ptr<pv::data::LogicSegment> AnalogSignal::get_logic_segment_to_paint() const
685 shared_ptr<pv::data::LogicSegment> segment;
687 const deque< shared_ptr<pv::data::LogicSegment> > &segments =
688 base_->logic_data()->logic_segments();
690 if (!segments.empty()) {
691 if (segment_display_mode_ == ShowLastSegmentOnly)
692 segment = segments.back();
694 if ((segment_display_mode_ == ShowSingleSegmentOnly) ||
695 (segment_display_mode_ == ShowLastCompleteSegmentOnly)) {
697 segment = segments.at(current_segment_);
698 } catch (out_of_range&) {
699 qDebug() << "Current logic segment out of range for signal" << base_->name() << ":" << current_segment_;
707 float AnalogSignal::get_resolution(int scale_index)
709 const float seq[] = {1.0f, 2.0f, 5.0f};
711 const int offset = numeric_limits<int>::max() / (2 * countof(seq));
712 const div_t d = div((int)(scale_index + countof(seq) * offset),
715 return powf(10.0f, d.quot - offset) * seq[d.rem];
718 void AnalogSignal::update_scale()
720 resolution_ = get_resolution(scale_index_);
721 scale_ = div_height_ / resolution_;
724 void AnalogSignal::update_conversion_widgets()
726 SignalBase::ConversionType conv_type = base_->get_conversion_type();
728 // Enable or disable widgets depending on conversion state
729 conv_threshold_cb_->setEnabled(conv_type != SignalBase::NoConversion);
730 display_type_cb_->setEnabled(conv_type != SignalBase::NoConversion);
732 conv_threshold_cb_->clear();
734 vector < pair<QString, int> > presets = base_->get_conversion_presets();
736 // Prevent the combo box from firing the "edit text changed" signal
737 // as that would involuntarily select the first entry
738 conv_threshold_cb_->blockSignals(true);
740 // Set available options depending on chosen conversion
741 for (pair<QString, int> preset : presets)
742 conv_threshold_cb_->addItem(preset.first, preset.second);
744 map < QString, QVariant > options = base_->get_conversion_options();
746 if (conv_type == SignalBase::A2LConversionByThreshold) {
747 const vector<double> thresholds = base_->get_conversion_thresholds(
748 SignalBase::A2LConversionByThreshold, true);
749 conv_threshold_cb_->addItem(
750 QString("%1V").arg(QString::number(thresholds[0], 'f', 1)), -1);
753 if (conv_type == SignalBase::A2LConversionBySchmittTrigger) {
754 const vector<double> thresholds = base_->get_conversion_thresholds(
755 SignalBase::A2LConversionBySchmittTrigger, true);
756 conv_threshold_cb_->addItem(QString("%1V/%2V").arg(
757 QString::number(thresholds[0], 'f', 1),
758 QString::number(thresholds[1], 'f', 1)), -1);
761 int preset_id = base_->get_current_conversion_preset();
762 conv_threshold_cb_->setCurrentIndex(
763 conv_threshold_cb_->findData(preset_id));
765 conv_threshold_cb_->blockSignals(false);
768 void AnalogSignal::perform_autoranging(bool keep_divs, bool force_update)
770 const deque< shared_ptr<pv::data::AnalogSegment> > &segments =
771 base_->analog_data()->analog_segments();
773 if (segments.empty())
776 static double prev_min = 0, prev_max = 0;
777 double min = 0, max = 0;
779 for (shared_ptr<pv::data::AnalogSegment> segment : segments) {
780 pair<double, double> mm = segment->get_min_max();
781 min = std::min(min, mm.first);
782 max = std::max(max, mm.second);
785 if ((min == prev_min) && (max == prev_max) && !force_update)
791 // If we're allowed to alter the div assignment...
793 // Use all divs for the positive range if there are no negative values
794 if ((min == 0) && (neg_vdivs_ > 0)) {
795 pos_vdivs_ += neg_vdivs_;
799 // Split up the divs if there are negative values but no negative divs
800 if ((min < 0) && (neg_vdivs_ == 0)) {
801 neg_vdivs_ = pos_vdivs_ / 2;
802 pos_vdivs_ -= neg_vdivs_;
806 // If there is still no positive div when we need it, add one
807 // (this can happen when pos_vdivs==neg_vdivs==0)
808 if ((max > 0) && (pos_vdivs_ == 0)) {
810 owner_->extents_changed(false, true);
813 // If there is still no negative div when we need it, add one
814 // (this can happen when pos_vdivs was 0 or 1 when trying to split)
815 if ((min < 0) && (neg_vdivs_ == 0)) {
817 owner_->extents_changed(false, true);
820 double min_value_per_div;
821 if ((pos_vdivs_ > 0) && (neg_vdivs_ > 0))
822 min_value_per_div = std::max(max / pos_vdivs_, -min / neg_vdivs_);
823 else if (pos_vdivs_ > 0)
824 min_value_per_div = max / pos_vdivs_;
826 min_value_per_div = -min / neg_vdivs_;
828 // Find first scale value that is bigger than the value we need
829 for (int i = MinScaleIndex; i < MaxScaleIndex; i++)
830 if (get_resolution(i) > min_value_per_div) {
838 void AnalogSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
840 // Add the standard options
841 Signal::populate_popup_form(parent, form);
843 QFormLayout *const layout = new QFormLayout;
845 // Add div-related settings
846 pvdiv_sb_ = new QSpinBox(parent);
847 pvdiv_sb_->setRange(0, MaximumVDivs);
848 pvdiv_sb_->setValue(pos_vdivs_);
849 connect(pvdiv_sb_, SIGNAL(valueChanged(int)),
850 this, SLOT(on_pos_vdivs_changed(int)));
851 layout->addRow(tr("Number of pos vertical divs"), pvdiv_sb_);
853 nvdiv_sb_ = new QSpinBox(parent);
854 nvdiv_sb_->setRange(0, MaximumVDivs);
855 nvdiv_sb_->setValue(neg_vdivs_);
856 connect(nvdiv_sb_, SIGNAL(valueChanged(int)),
857 this, SLOT(on_neg_vdivs_changed(int)));
858 layout->addRow(tr("Number of neg vertical divs"), nvdiv_sb_);
860 div_height_sb_ = new QSpinBox(parent);
861 div_height_sb_->setRange(20, 1000);
862 div_height_sb_->setSingleStep(5);
863 div_height_sb_->setSuffix(tr(" pixels"));
864 div_height_sb_->setValue(div_height_);
865 connect(div_height_sb_, SIGNAL(valueChanged(int)),
866 this, SLOT(on_div_height_changed(int)));
867 layout->addRow(tr("Div height"), div_height_sb_);
869 // Add the vertical resolution
870 resolution_cb_ = new QComboBox(parent);
872 for (int i = MinScaleIndex; i < MaxScaleIndex; i++) {
873 const QString label = QString("%1").arg(get_resolution(i));
874 resolution_cb_->insertItem(0, label, QVariant(i));
877 int cur_idx = resolution_cb_->findData(QVariant(scale_index_));
878 resolution_cb_->setCurrentIndex(cur_idx);
880 connect(resolution_cb_, SIGNAL(currentIndexChanged(int)),
881 this, SLOT(on_resolution_changed(int)));
883 QGridLayout *const vdiv_layout = new QGridLayout;
884 QLabel *const vdiv_unit = new QLabel(tr("V/div"));
885 vdiv_layout->addWidget(resolution_cb_, 0, 0);
886 vdiv_layout->addWidget(vdiv_unit, 0, 1);
888 layout->addRow(tr("Vertical resolution"), vdiv_layout);
890 // Add the autoranging checkbox
891 QCheckBox* autoranging_cb = new QCheckBox();
892 autoranging_cb->setCheckState(autoranging_ ? Qt::Checked : Qt::Unchecked);
894 connect(autoranging_cb, SIGNAL(stateChanged(int)),
895 this, SLOT(on_autoranging_changed(int)));
897 layout->addRow(tr("Autoranging"), autoranging_cb);
899 // Add the conversion type dropdown
900 conversion_cb_ = new QComboBox();
902 conversion_cb_->addItem(tr("none"),
903 SignalBase::NoConversion);
904 conversion_cb_->addItem(tr("to logic via threshold"),
905 SignalBase::A2LConversionByThreshold);
906 conversion_cb_->addItem(tr("to logic via schmitt-trigger"),
907 SignalBase::A2LConversionBySchmittTrigger);
909 cur_idx = conversion_cb_->findData(QVariant(base_->get_conversion_type()));
910 conversion_cb_->setCurrentIndex(cur_idx);
912 layout->addRow(tr("Conversion"), conversion_cb_);
914 connect(conversion_cb_, SIGNAL(currentIndexChanged(int)),
915 this, SLOT(on_conversion_changed(int)));
917 // Add the conversion threshold settings
918 conv_threshold_cb_ = new QComboBox();
919 conv_threshold_cb_->setEditable(true);
921 layout->addRow(tr("Conversion threshold(s)"), conv_threshold_cb_);
923 connect(conv_threshold_cb_, SIGNAL(currentIndexChanged(int)),
924 this, SLOT(on_conv_threshold_changed(int)));
925 connect(conv_threshold_cb_, SIGNAL(editTextChanged(const QString)),
926 this, SLOT(on_conv_threshold_changed())); // index will be -1
928 // Add the display type dropdown
929 display_type_cb_ = new QComboBox();
931 display_type_cb_->addItem(tr("analog"), DisplayAnalog);
932 display_type_cb_->addItem(tr("converted"), DisplayConverted);
933 display_type_cb_->addItem(tr("analog+converted"), DisplayBoth);
935 cur_idx = display_type_cb_->findData(QVariant(display_type_));
936 display_type_cb_->setCurrentIndex(cur_idx);
938 layout->addRow(tr("Show traces for"), display_type_cb_);
940 connect(display_type_cb_, SIGNAL(currentIndexChanged(int)),
941 this, SLOT(on_display_type_changed(int)));
943 // Update the conversion widget contents and states
944 update_conversion_widgets();
946 form->addRow(layout);
949 void AnalogSignal::on_min_max_changed(float min, float max)
955 perform_autoranging(false, false);
958 void AnalogSignal::on_pos_vdivs_changed(int vdivs)
960 if (vdivs == pos_vdivs_)
965 // There has to be at least one div, positive or negative
966 if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) {
969 pvdiv_sb_->setValue(pos_vdivs_);
973 perform_autoranging(true, true);
975 // It could be that a positive or negative div was added, so update
977 pvdiv_sb_->setValue(pos_vdivs_);
978 nvdiv_sb_->setValue(neg_vdivs_);
983 // Call order is important, otherwise the lazy event handler won't work
984 owner_->extents_changed(false, true);
985 owner_->row_item_appearance_changed(false, true);
989 void AnalogSignal::on_neg_vdivs_changed(int vdivs)
991 if (vdivs == neg_vdivs_)
996 // There has to be at least one div, positive or negative
997 if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) {
1000 pvdiv_sb_->setValue(pos_vdivs_);
1004 perform_autoranging(true, true);
1006 // It could be that a positive or negative div was added, so update
1008 pvdiv_sb_->setValue(pos_vdivs_);
1009 nvdiv_sb_->setValue(neg_vdivs_);
1014 // Call order is important, otherwise the lazy event handler won't work
1015 owner_->extents_changed(false, true);
1016 owner_->row_item_appearance_changed(false, true);
1020 void AnalogSignal::on_div_height_changed(int height)
1022 div_height_ = height;
1026 // Call order is important, otherwise the lazy event handler won't work
1027 owner_->extents_changed(false, true);
1028 owner_->row_item_appearance_changed(false, true);
1032 void AnalogSignal::on_resolution_changed(int index)
1034 scale_index_ = resolution_cb_->itemData(index).toInt();
1038 owner_->row_item_appearance_changed(false, true);
1041 void AnalogSignal::on_autoranging_changed(int state)
1043 autoranging_ = (state == Qt::Checked);
1046 perform_autoranging(false, true);
1049 // Call order is important, otherwise the lazy event handler won't work
1050 owner_->extents_changed(false, true);
1051 owner_->row_item_appearance_changed(false, true);
1055 void AnalogSignal::on_conversion_changed(int index)
1057 SignalBase::ConversionType old_conv_type = base_->get_conversion_type();
1059 SignalBase::ConversionType conv_type =
1060 (SignalBase::ConversionType)(conversion_cb_->itemData(index).toInt());
1062 if (conv_type != old_conv_type) {
1063 base_->set_conversion_type(conv_type);
1064 update_conversion_widgets();
1067 owner_->row_item_appearance_changed(false, true);
1071 void AnalogSignal::on_conv_threshold_changed(int index)
1073 SignalBase::ConversionType conv_type = base_->get_conversion_type();
1075 // Note: index is set to -1 if the text in the combo box matches none of
1076 // the entries in the combo box
1078 if ((index == -1) && (conv_threshold_cb_->currentText().length() == 0))
1081 // The combo box entry with the custom value has user_data set to -1
1082 const int user_data = conv_threshold_cb_->findText(
1083 conv_threshold_cb_->currentText());
1085 const bool use_custom_thr = (index == -1) || (user_data == -1);
1087 if (conv_type == SignalBase::A2LConversionByThreshold && use_custom_thr) {
1088 // Not one of the preset values, try to parse the combo box text
1089 // Note: Regex loosely based on
1090 // https://txt2re.com/index-c++.php3?s=0.1V&1&-13
1091 QString re1 = "([+-]?\\d*[\\.,]?\\d*)"; // Float value
1092 QString re2 = "([a-zA-Z]*)"; // SI unit
1093 QRegExp regex(re1 + re2);
1095 const QString text = conv_threshold_cb_->currentText();
1096 if (!regex.exactMatch(text))
1097 return; // String doesn't match the regex
1099 QStringList tokens = regex.capturedTexts();
1101 // For now, we simply assume that the unit is volt without modifiers
1102 const double thr = tokens.at(1).toDouble();
1104 // Only restart the conversion if the threshold was updated.
1105 // We're starting a delayed conversion because the user may still be
1106 // typing and the UI would lag if we kept on restarting it immediately
1107 if (base_->set_conversion_option("threshold_value", thr))
1108 base_->start_conversion(true);
1111 if (conv_type == SignalBase::A2LConversionBySchmittTrigger && use_custom_thr) {
1112 // Not one of the preset values, try to parse the combo box text
1113 // Note: Regex loosely based on
1114 // https://txt2re.com/index-c++.php3?s=0.1V/0.2V&2&14&-22&3&15
1115 QString re1 = "([+-]?\\d*[\\.,]?\\d*)"; // Float value
1116 QString re2 = "([a-zA-Z]*)"; // SI unit
1117 QString re3 = "\\/"; // Forward slash, not captured
1118 QString re4 = "([+-]?\\d*[\\.,]?\\d*)"; // Float value
1119 QString re5 = "([a-zA-Z]*)"; // SI unit
1120 QRegExp regex(re1 + re2 + re3 + re4 + re5);
1122 const QString text = conv_threshold_cb_->currentText();
1123 if (!regex.exactMatch(text))
1124 return; // String doesn't match the regex
1126 QStringList tokens = regex.capturedTexts();
1128 // For now, we simply assume that the unit is volt without modifiers
1129 const double low_thr = tokens.at(1).toDouble();
1130 const double high_thr = tokens.at(3).toDouble();
1132 // Only restart the conversion if one of the options was updated.
1133 // We're starting a delayed conversion because the user may still be
1134 // typing and the UI would lag if we kept on restarting it immediately
1135 bool o1 = base_->set_conversion_option("threshold_value_low", low_thr);
1136 bool o2 = base_->set_conversion_option("threshold_value_high", high_thr);
1138 base_->start_conversion(true); // Start delayed conversion
1141 base_->set_conversion_preset((SignalBase::ConversionPreset)index);
1143 // Immediately start the conversion if we're not using custom values
1144 // (i.e. we're using one of the presets)
1145 if (!use_custom_thr)
1146 base_->start_conversion();
1149 void AnalogSignal::on_delayed_conversion_starter()
1151 base_->start_conversion();
1154 void AnalogSignal::on_display_type_changed(int index)
1156 display_type_ = (DisplayType)(display_type_cb_->itemData(index).toInt());
1159 owner_->row_item_appearance_changed(false, true);
1162 void AnalogSignal::on_settingViewConversionThresholdDispMode_changed(const QVariant new_value)
1164 conversion_threshold_disp_mode_ = new_value.toInt();
1167 owner_->row_item_appearance_changed(false, true);
1170 } // namespace trace
1171 } // namespace views