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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <extdef.h> | |
21 | ||
22 | #include <cassert> | |
23 | #include <cmath> | |
24 | #include <cstdlib> | |
25 | #include <limits> | |
26 | #include <vector> | |
27 | ||
28 | #include <QApplication> | |
29 | #include <QCheckBox> | |
30 | #include <QComboBox> | |
31 | #include <QFormLayout> | |
32 | #include <QGridLayout> | |
33 | #include <QLabel> | |
34 | #include <QString> | |
35 | ||
36 | #include "analogsignal.hpp" | |
37 | #include "logicsignal.hpp" | |
38 | #include "view.hpp" | |
39 | ||
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" | |
46 | ||
47 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
48 | ||
49 | using std::deque; | |
50 | using std::div; | |
51 | using std::div_t; | |
52 | using std::max; | |
53 | using std::make_pair; | |
54 | using std::min; | |
55 | using std::numeric_limits; | |
56 | using std::pair; | |
57 | using std::shared_ptr; | |
58 | using std::vector; | |
59 | ||
60 | using pv::data::SignalBase; | |
61 | ||
62 | namespace pv { | |
63 | namespace views { | |
64 | namespace trace { | |
65 | ||
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 | |
71 | }; | |
72 | ||
73 | const QColor AnalogSignal::GridMajorColor = QColor(0, 0, 0, 40 * 256 / 100); | |
74 | const QColor AnalogSignal::GridMinorColor = QColor(0, 0, 0, 20 * 256 / 100); | |
75 | ||
76 | const QColor AnalogSignal::SamplingPointColour(0x77, 0x77, 0x77); | |
77 | ||
78 | const int64_t AnalogSignal::TracePaintBlockSize = 1024 * 1024; // 4 MiB (due to float) | |
79 | const float AnalogSignal::EnvelopeThreshold = 64.0f; | |
80 | ||
81 | const int AnalogSignal::MaximumVDivs = 10; | |
82 | const int AnalogSignal::MinScaleIndex = -6; | |
83 | const int AnalogSignal::MaxScaleIndex = 7; | |
84 | ||
85 | const int AnalogSignal::InfoTextMarginRight = 20; | |
86 | const int AnalogSignal::InfoTextMarginBottom = 5; | |
87 | ||
88 | AnalogSignal::AnalogSignal( | |
89 | pv::Session &session, | |
90 | shared_ptr<data::SignalBase> base) : | |
91 | Signal(session, base), | |
92 | scale_index_(4), // 20 per div | |
93 | scale_index_drag_offset_(0), | |
94 | pos_vdivs_(1), | |
95 | neg_vdivs_(1), | |
96 | resolution_(0), | |
97 | display_type_(DisplayBoth), | |
98 | autoranging_(true) | |
99 | { | |
100 | pv::data::Analog* analog_data = | |
101 | dynamic_cast<pv::data::Analog*>(data().get()); | |
102 | ||
103 | connect(analog_data, SIGNAL(samples_added(QObject*, uint64_t, uint64_t)), | |
104 | this, SLOT(on_samples_added())); | |
105 | ||
106 | connect(&delayed_conversion_starter_, SIGNAL(timeout()), | |
107 | this, SLOT(on_delayed_conversion_starter())); | |
108 | delayed_conversion_starter_.setSingleShot(true); | |
109 | delayed_conversion_starter_.setInterval(1000); // 1s timeout | |
110 | ||
111 | GlobalSettings gs; | |
112 | div_height_ = gs.value(GlobalSettings::Key_View_DefaultDivHeight).toInt(); | |
113 | ||
114 | base_->set_colour(SignalColours[base_->index() % countof(SignalColours)]); | |
115 | update_scale(); | |
116 | } | |
117 | ||
118 | shared_ptr<pv::data::SignalData> AnalogSignal::data() const | |
119 | { | |
120 | return base_->analog_data(); | |
121 | } | |
122 | ||
123 | void AnalogSignal::save_settings(QSettings &settings) const | |
124 | { | |
125 | settings.setValue("pos_vdivs", pos_vdivs_); | |
126 | settings.setValue("neg_vdivs", neg_vdivs_); | |
127 | settings.setValue("scale_index", scale_index_); | |
128 | settings.setValue("display_type", display_type_); | |
129 | settings.setValue("autoranging", autoranging_); | |
130 | settings.setValue("div_height", div_height_); | |
131 | } | |
132 | ||
133 | void AnalogSignal::restore_settings(QSettings &settings) | |
134 | { | |
135 | if (settings.contains("pos_vdivs")) | |
136 | pos_vdivs_ = settings.value("pos_vdivs").toInt(); | |
137 | ||
138 | if (settings.contains("neg_vdivs")) | |
139 | neg_vdivs_ = settings.value("neg_vdivs").toInt(); | |
140 | ||
141 | if (settings.contains("scale_index")) { | |
142 | scale_index_ = settings.value("scale_index").toInt(); | |
143 | update_scale(); | |
144 | } | |
145 | ||
146 | if (settings.contains("display_type")) | |
147 | display_type_ = (DisplayType)(settings.value("display_type").toInt()); | |
148 | ||
149 | if (settings.contains("autoranging")) | |
150 | autoranging_ = settings.value("autoranging").toBool(); | |
151 | ||
152 | if (settings.contains("div_height")) { | |
153 | const int old_height = div_height_; | |
154 | div_height_ = settings.value("div_height").toInt(); | |
155 | ||
156 | if ((div_height_ != old_height) && owner_) { | |
157 | // Call order is important, otherwise the lazy event handler won't work | |
158 | owner_->extents_changed(false, true); | |
159 | owner_->row_item_appearance_changed(false, true); | |
160 | } | |
161 | } | |
162 | } | |
163 | ||
164 | pair<int, int> AnalogSignal::v_extents() const | |
165 | { | |
166 | const int ph = pos_vdivs_ * div_height_; | |
167 | const int nh = neg_vdivs_ * div_height_; | |
168 | return make_pair(-ph, nh); | |
169 | } | |
170 | ||
171 | int AnalogSignal::scale_handle_offset() const | |
172 | { | |
173 | const int h = (pos_vdivs_ + neg_vdivs_) * div_height_; | |
174 | ||
175 | return ((scale_index_drag_offset_ - scale_index_) * h / 4) - h / 2; | |
176 | } | |
177 | ||
178 | void AnalogSignal::scale_handle_dragged(int offset) | |
179 | { | |
180 | const int h = (pos_vdivs_ + neg_vdivs_) * div_height_; | |
181 | ||
182 | scale_index_ = scale_index_drag_offset_ - (offset + h / 2) / (h / 4); | |
183 | ||
184 | update_scale(); | |
185 | } | |
186 | ||
187 | void AnalogSignal::scale_handle_drag_release() | |
188 | { | |
189 | scale_index_drag_offset_ = scale_index_; | |
190 | update_scale(); | |
191 | } | |
192 | ||
193 | void AnalogSignal::paint_back(QPainter &p, ViewItemPaintParams &pp) | |
194 | { | |
195 | if (base_->enabled()) { | |
196 | Trace::paint_back(p, pp); | |
197 | paint_axis(p, pp, get_visual_y()); | |
198 | } | |
199 | } | |
200 | ||
201 | void AnalogSignal::paint_mid(QPainter &p, ViewItemPaintParams &pp) | |
202 | { | |
203 | assert(base_->analog_data()); | |
204 | assert(owner_); | |
205 | ||
206 | const int y = get_visual_y(); | |
207 | ||
208 | if (!base_->enabled()) | |
209 | return; | |
210 | ||
211 | if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) { | |
212 | paint_grid(p, y, pp.left(), pp.right()); | |
213 | ||
214 | const deque< shared_ptr<pv::data::AnalogSegment> > &segments = | |
215 | base_->analog_data()->analog_segments(); | |
216 | if (segments.empty()) | |
217 | return; | |
218 | ||
219 | const shared_ptr<pv::data::AnalogSegment> &segment = | |
220 | segments.front(); | |
221 | ||
222 | const double pixels_offset = pp.pixels_offset(); | |
223 | const double samplerate = max(1.0, segment->samplerate()); | |
224 | const pv::util::Timestamp& start_time = segment->start_time(); | |
225 | const int64_t last_sample = segment->get_sample_count() - 1; | |
226 | const double samples_per_pixel = samplerate * pp.scale(); | |
227 | const pv::util::Timestamp start = samplerate * (pp.offset() - start_time); | |
228 | const pv::util::Timestamp end = start + samples_per_pixel * pp.width(); | |
229 | ||
230 | const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(), | |
231 | (int64_t)0), last_sample); | |
232 | const int64_t end_sample = min(max((ceil(end) + 1).convert_to<int64_t>(), | |
233 | (int64_t)0), last_sample); | |
234 | ||
235 | if (samples_per_pixel < EnvelopeThreshold) | |
236 | paint_trace(p, segment, y, pp.left(), | |
237 | start_sample, end_sample, | |
238 | pixels_offset, samples_per_pixel); | |
239 | else | |
240 | paint_envelope(p, segment, y, pp.left(), | |
241 | start_sample, end_sample, | |
242 | pixels_offset, samples_per_pixel); | |
243 | } | |
244 | ||
245 | if ((display_type_ == DisplayConverted) || (display_type_ == DisplayBoth)) { | |
246 | const SignalBase::ConversionType conv_type = base_->get_conversion_type(); | |
247 | ||
248 | if (((conv_type == SignalBase::A2LConversionByThreshold) || | |
249 | (conv_type == SignalBase::A2LConversionBySchmittTrigger))) | |
250 | paint_logic_mid(p, pp); | |
251 | } | |
252 | } | |
253 | ||
254 | void AnalogSignal::paint_fore(QPainter &p, ViewItemPaintParams &pp) | |
255 | { | |
256 | if (!enabled()) | |
257 | return; | |
258 | ||
259 | if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) { | |
260 | const int y = get_visual_y(); | |
261 | ||
262 | // Show the info section on the right side of the trace | |
263 | const QString infotext = QString("%1 V/div").arg(resolution_); | |
264 | ||
265 | p.setPen(base_->colour()); | |
266 | p.setFont(QApplication::font()); | |
267 | ||
268 | const QRectF bounding_rect = QRectF(pp.left(), | |
269 | y + v_extents().first, | |
270 | pp.width() - InfoTextMarginRight, | |
271 | v_extents().second - v_extents().first - InfoTextMarginBottom); | |
272 | ||
273 | p.drawText(bounding_rect, Qt::AlignRight | Qt::AlignBottom, infotext); | |
274 | } | |
275 | } | |
276 | ||
277 | void AnalogSignal::paint_grid(QPainter &p, int y, int left, int right) | |
278 | { | |
279 | p.setRenderHint(QPainter::Antialiasing, false); | |
280 | ||
281 | GlobalSettings settings; | |
282 | const bool show_analog_minor_grid = | |
283 | settings.value(GlobalSettings::Key_View_ShowAnalogMinorGrid).toBool(); | |
284 | ||
285 | if (pos_vdivs_ > 0) { | |
286 | p.setPen(QPen(GridMajorColor, 1, Qt::DashLine)); | |
287 | for (int i = 1; i <= pos_vdivs_; i++) { | |
288 | const float dy = i * div_height_; | |
289 | p.drawLine(QLineF(left, y - dy, right, y - dy)); | |
290 | } | |
291 | } | |
292 | ||
293 | if ((pos_vdivs_ > 0) && show_analog_minor_grid) { | |
294 | p.setPen(QPen(GridMinorColor, 1, Qt::DashLine)); | |
295 | for (int i = 0; i < pos_vdivs_; i++) { | |
296 | const float dy = i * div_height_; | |
297 | const float dy25 = dy + (0.25 * div_height_); | |
298 | const float dy50 = dy + (0.50 * div_height_); | |
299 | const float dy75 = dy + (0.75 * div_height_); | |
300 | p.drawLine(QLineF(left, y - dy25, right, y - dy25)); | |
301 | p.drawLine(QLineF(left, y - dy50, right, y - dy50)); | |
302 | p.drawLine(QLineF(left, y - dy75, right, y - dy75)); | |
303 | } | |
304 | } | |
305 | ||
306 | if (neg_vdivs_ > 0) { | |
307 | p.setPen(QPen(GridMajorColor, 1, Qt::DashLine)); | |
308 | for (int i = 1; i <= neg_vdivs_; i++) { | |
309 | const float dy = i * div_height_; | |
310 | p.drawLine(QLineF(left, y + dy, right, y + dy)); | |
311 | } | |
312 | } | |
313 | ||
314 | if ((pos_vdivs_ > 0) && show_analog_minor_grid) { | |
315 | p.setPen(QPen(GridMinorColor, 1, Qt::DashLine)); | |
316 | for (int i = 0; i < neg_vdivs_; i++) { | |
317 | const float dy = i * div_height_; | |
318 | const float dy25 = dy + (0.25 * div_height_); | |
319 | const float dy50 = dy + (0.50 * div_height_); | |
320 | const float dy75 = dy + (0.75 * div_height_); | |
321 | p.drawLine(QLineF(left, y + dy25, right, y + dy25)); | |
322 | p.drawLine(QLineF(left, y + dy50, right, y + dy50)); | |
323 | p.drawLine(QLineF(left, y + dy75, right, y + dy75)); | |
324 | } | |
325 | } | |
326 | ||
327 | p.setRenderHint(QPainter::Antialiasing, true); | |
328 | } | |
329 | ||
330 | void AnalogSignal::paint_trace(QPainter &p, | |
331 | const shared_ptr<pv::data::AnalogSegment> &segment, | |
332 | int y, int left, const int64_t start, const int64_t end, | |
333 | const double pixels_offset, const double samples_per_pixel) | |
334 | { | |
335 | if (end <= start) | |
336 | return; | |
337 | ||
338 | // Calculate and paint the sampling points if enabled and useful | |
339 | GlobalSettings settings; | |
340 | const bool show_sampling_points = | |
341 | settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() && | |
342 | (samples_per_pixel < 0.25); | |
343 | ||
344 | p.setPen(base_->colour()); | |
345 | ||
346 | const int64_t points_count = end - start; | |
347 | ||
348 | QPointF *points = new QPointF[points_count]; | |
349 | QPointF *point = points; | |
350 | ||
351 | QRectF *sampling_points = nullptr; | |
352 | if (show_sampling_points) | |
353 | sampling_points = new QRectF[points_count]; | |
354 | QRectF *sampling_point = sampling_points; | |
355 | ||
356 | int64_t sample_count = min(points_count, TracePaintBlockSize); | |
357 | int64_t block_sample = 0; | |
358 | float *sample_block = new float[TracePaintBlockSize]; | |
359 | segment->get_samples(start, start + sample_count, sample_block); | |
360 | ||
361 | const int w = 2; | |
362 | for (int64_t sample = start; sample != end; sample++, block_sample++) { | |
363 | ||
364 | if (block_sample == TracePaintBlockSize) { | |
365 | block_sample = 0; | |
366 | sample_count = min(points_count - sample, TracePaintBlockSize); | |
367 | segment->get_samples(sample, sample + sample_count, sample_block); | |
368 | } | |
369 | ||
370 | const float x = (sample / samples_per_pixel - | |
371 | pixels_offset) + left; | |
372 | ||
373 | *point++ = QPointF(x, y - sample_block[block_sample] * scale_); | |
374 | ||
375 | if (show_sampling_points) | |
376 | *sampling_point++ = | |
377 | QRectF(x - (w / 2), y - sample_block[block_sample] * scale_ - (w / 2), w, w); | |
378 | } | |
379 | delete[] sample_block; | |
380 | ||
381 | p.drawPolyline(points, points_count); | |
382 | ||
383 | if (show_sampling_points) { | |
384 | p.setPen(SamplingPointColour); | |
385 | p.drawRects(sampling_points, points_count); | |
386 | delete[] sampling_points; | |
387 | } | |
388 | ||
389 | delete[] points; | |
390 | } | |
391 | ||
392 | void AnalogSignal::paint_envelope(QPainter &p, | |
393 | const shared_ptr<pv::data::AnalogSegment> &segment, | |
394 | int y, int left, const int64_t start, const int64_t end, | |
395 | const double pixels_offset, const double samples_per_pixel) | |
396 | { | |
397 | using pv::data::AnalogSegment; | |
398 | ||
399 | AnalogSegment::EnvelopeSection e; | |
400 | segment->get_envelope_section(e, start, end, samples_per_pixel); | |
401 | ||
402 | if (e.length < 2) | |
403 | return; | |
404 | ||
405 | p.setPen(QPen(Qt::NoPen)); | |
406 | p.setBrush(base_->colour()); | |
407 | ||
408 | QRectF *const rects = new QRectF[e.length]; | |
409 | QRectF *rect = rects; | |
410 | ||
411 | for (uint64_t sample = 0; sample < e.length - 1; sample++) { | |
412 | const float x = ((e.scale * sample + e.start) / | |
413 | samples_per_pixel - pixels_offset) + left; | |
414 | const AnalogSegment::EnvelopeSample *const s = | |
415 | e.samples + sample; | |
416 | ||
417 | // We overlap this sample with the next so that vertical | |
418 | // gaps do not appear during steep rising or falling edges | |
419 | const float b = y - max(s->max, (s + 1)->min) * scale_; | |
420 | const float t = y - min(s->min, (s + 1)->max) * scale_; | |
421 | ||
422 | float h = b - t; | |
423 | if (h >= 0.0f && h <= 1.0f) | |
424 | h = 1.0f; | |
425 | if (h <= 0.0f && h >= -1.0f) | |
426 | h = -1.0f; | |
427 | ||
428 | *rect++ = QRectF(x, t, 1.0f, h); | |
429 | } | |
430 | ||
431 | p.drawRects(rects, e.length); | |
432 | ||
433 | delete[] rects; | |
434 | delete[] e.samples; | |
435 | } | |
436 | ||
437 | void AnalogSignal::paint_logic_mid(QPainter &p, ViewItemPaintParams &pp) | |
438 | { | |
439 | QLineF *line; | |
440 | ||
441 | vector< pair<int64_t, bool> > edges; | |
442 | ||
443 | assert(base_); | |
444 | ||
445 | const int y = get_visual_y(); | |
446 | ||
447 | if (!base_->enabled() || !base_->logic_data()) | |
448 | return; | |
449 | ||
450 | const int signal_margin = | |
451 | QFontMetrics(QApplication::font()).height() / 2; | |
452 | ||
453 | const int ph = min(pos_vdivs_, 1) * div_height_; | |
454 | const int nh = min(neg_vdivs_, 1) * div_height_; | |
455 | const float high_offset = y - ph + signal_margin + 0.5f; | |
456 | const float low_offset = y + nh - signal_margin - 0.5f; | |
457 | ||
458 | const deque< shared_ptr<pv::data::LogicSegment> > &segments = | |
459 | base_->logic_data()->logic_segments(); | |
460 | ||
461 | if (segments.empty()) | |
462 | return; | |
463 | ||
464 | const shared_ptr<pv::data::LogicSegment> &segment = | |
465 | segments.front(); | |
466 | ||
467 | double samplerate = segment->samplerate(); | |
468 | ||
469 | // Show sample rate as 1Hz when it is unknown | |
470 | if (samplerate == 0.0) | |
471 | samplerate = 1.0; | |
472 | ||
473 | const double pixels_offset = pp.pixels_offset(); | |
474 | const pv::util::Timestamp& start_time = segment->start_time(); | |
475 | const int64_t last_sample = segment->get_sample_count() - 1; | |
476 | const double samples_per_pixel = samplerate * pp.scale(); | |
477 | const double pixels_per_sample = 1 / samples_per_pixel; | |
478 | const pv::util::Timestamp start = samplerate * (pp.offset() - start_time); | |
479 | const pv::util::Timestamp end = start + samples_per_pixel * pp.width(); | |
480 | ||
481 | const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(), | |
482 | (int64_t)0), last_sample); | |
483 | const uint64_t end_sample = min(max(ceil(end).convert_to<int64_t>(), | |
484 | (int64_t)0), last_sample); | |
485 | ||
486 | segment->get_subsampled_edges(edges, start_sample, end_sample, | |
487 | samples_per_pixel / LogicSignal::Oversampling, 0); | |
488 | assert(edges.size() >= 2); | |
489 | ||
490 | // Check whether we need to paint the sampling points | |
491 | GlobalSettings settings; | |
492 | const bool show_sampling_points = | |
493 | settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() && | |
494 | (samples_per_pixel < 0.25); | |
495 | ||
496 | vector<QRectF> sampling_points; | |
497 | float sampling_point_x = 0.0f; | |
498 | int64_t sampling_point_sample = start_sample; | |
499 | const int w = 2; | |
500 | ||
501 | if (show_sampling_points) { | |
502 | sampling_points.reserve(end_sample - start_sample + 1); | |
503 | sampling_point_x = (edges.cbegin()->first / samples_per_pixel - pixels_offset) + pp.left(); | |
504 | } | |
505 | ||
506 | // Paint the edges | |
507 | const unsigned int edge_count = edges.size() - 2; | |
508 | QLineF *const edge_lines = new QLineF[edge_count]; | |
509 | line = edge_lines; | |
510 | ||
511 | for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) { | |
512 | const float x = ((*i).first / samples_per_pixel - | |
513 | pixels_offset) + pp.left(); | |
514 | *line++ = QLineF(x, high_offset, x, low_offset); | |
515 | ||
516 | if (show_sampling_points) | |
517 | while (sampling_point_sample < (*i).first) { | |
518 | const float y = (*i).second ? low_offset : high_offset; | |
519 | sampling_points.emplace_back( | |
520 | QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w)); | |
521 | sampling_point_sample++; | |
522 | sampling_point_x += pixels_per_sample; | |
523 | }; | |
524 | } | |
525 | ||
526 | // Calculate the sample points from the last edge to the end of the trace | |
527 | if (show_sampling_points) | |
528 | while ((uint64_t)sampling_point_sample <= end_sample) { | |
529 | // Signal changed after the last edge, so the level is inverted | |
530 | const float y = (edges.cend() - 1)->second ? high_offset : low_offset; | |
531 | sampling_points.emplace_back( | |
532 | QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w)); | |
533 | sampling_point_sample++; | |
534 | sampling_point_x += pixels_per_sample; | |
535 | }; | |
536 | ||
537 | p.setPen(LogicSignal::EdgeColour); | |
538 | p.drawLines(edge_lines, edge_count); | |
539 | delete[] edge_lines; | |
540 | ||
541 | // Paint the caps | |
542 | const unsigned int max_cap_line_count = edges.size(); | |
543 | QLineF *const cap_lines = new QLineF[max_cap_line_count]; | |
544 | ||
545 | p.setPen(LogicSignal::HighColour); | |
546 | paint_logic_caps(p, cap_lines, edges, true, samples_per_pixel, | |
547 | pixels_offset, pp.left(), high_offset); | |
548 | p.setPen(LogicSignal::LowColour); | |
549 | paint_logic_caps(p, cap_lines, edges, false, samples_per_pixel, | |
550 | pixels_offset, pp.left(), low_offset); | |
551 | ||
552 | delete[] cap_lines; | |
553 | ||
554 | // Paint the sampling points | |
555 | if (show_sampling_points) { | |
556 | p.setPen(SamplingPointColour); | |
557 | p.drawRects(sampling_points.data(), sampling_points.size()); | |
558 | } | |
559 | } | |
560 | ||
561 | void AnalogSignal::paint_logic_caps(QPainter &p, QLineF *const lines, | |
562 | vector< pair<int64_t, bool> > &edges, bool level, | |
563 | double samples_per_pixel, double pixels_offset, float x_offset, | |
564 | float y_offset) | |
565 | { | |
566 | QLineF *line = lines; | |
567 | ||
568 | for (auto i = edges.begin(); i != (edges.end() - 1); i++) | |
569 | if ((*i).second == level) { | |
570 | *line++ = QLineF( | |
571 | ((*i).first / samples_per_pixel - | |
572 | pixels_offset) + x_offset, y_offset, | |
573 | ((*(i+1)).first / samples_per_pixel - | |
574 | pixels_offset) + x_offset, y_offset); | |
575 | } | |
576 | ||
577 | p.drawLines(lines, line - lines); | |
578 | } | |
579 | ||
580 | float AnalogSignal::get_resolution(int scale_index) | |
581 | { | |
582 | const float seq[] = {1.0f, 2.0f, 5.0f}; | |
583 | ||
584 | const int offset = numeric_limits<int>::max() / (2 * countof(seq)); | |
585 | const div_t d = div((int)(scale_index + countof(seq) * offset), | |
586 | countof(seq)); | |
587 | ||
588 | return powf(10.0f, d.quot - offset) * seq[d.rem]; | |
589 | } | |
590 | ||
591 | void AnalogSignal::update_scale() | |
592 | { | |
593 | resolution_ = get_resolution(scale_index_); | |
594 | scale_ = div_height_ / resolution_; | |
595 | } | |
596 | ||
597 | void AnalogSignal::update_conversion_widgets() | |
598 | { | |
599 | SignalBase::ConversionType conv_type = base_->get_conversion_type(); | |
600 | ||
601 | // Enable or disable widgets depending on conversion state | |
602 | conv_threshold_cb_->setEnabled(conv_type != SignalBase::NoConversion); | |
603 | display_type_cb_->setEnabled(conv_type != SignalBase::NoConversion); | |
604 | ||
605 | conv_threshold_cb_->clear(); | |
606 | ||
607 | vector < pair<QString, int> > presets = base_->get_conversion_presets(); | |
608 | ||
609 | // Prevent the combo box from firing the "edit text changed" signal | |
610 | // as that would involuntarily select the first entry | |
611 | conv_threshold_cb_->blockSignals(true); | |
612 | ||
613 | // Set available options depending on chosen conversion | |
614 | for (pair<QString, int> preset : presets) | |
615 | conv_threshold_cb_->addItem(preset.first, preset.second); | |
616 | ||
617 | map < QString, QVariant > options = base_->get_conversion_options(); | |
618 | ||
619 | if (conv_type == SignalBase::A2LConversionByThreshold) { | |
620 | const vector<double> thresholds = base_->get_conversion_thresholds( | |
621 | SignalBase::A2LConversionByThreshold, true); | |
622 | conv_threshold_cb_->addItem( | |
623 | QString("%1V").arg(QString::number(thresholds[0], 'f', 1)), -1); | |
624 | } | |
625 | ||
626 | if (conv_type == SignalBase::A2LConversionBySchmittTrigger) { | |
627 | const vector<double> thresholds = base_->get_conversion_thresholds( | |
628 | SignalBase::A2LConversionBySchmittTrigger, true); | |
629 | conv_threshold_cb_->addItem(QString("%1V/%2V").arg( | |
630 | QString::number(thresholds[0], 'f', 1), | |
631 | QString::number(thresholds[1], 'f', 1)), -1); | |
632 | } | |
633 | ||
634 | int preset_id = base_->get_current_conversion_preset(); | |
635 | conv_threshold_cb_->setCurrentIndex( | |
636 | conv_threshold_cb_->findData(preset_id)); | |
637 | ||
638 | conv_threshold_cb_->blockSignals(false); | |
639 | } | |
640 | ||
641 | void AnalogSignal::perform_autoranging(bool keep_divs, bool force_update) | |
642 | { | |
643 | const deque< shared_ptr<pv::data::AnalogSegment> > &segments = | |
644 | base_->analog_data()->analog_segments(); | |
645 | ||
646 | if (segments.empty()) | |
647 | return; | |
648 | ||
649 | static double prev_min = 0, prev_max = 0; | |
650 | double min = 0, max = 0; | |
651 | ||
652 | for (shared_ptr<pv::data::AnalogSegment> segment : segments) { | |
653 | pair<double, double> mm = segment->get_min_max(); | |
654 | min = std::min(min, mm.first); | |
655 | max = std::max(max, mm.second); | |
656 | } | |
657 | ||
658 | if ((min == prev_min) && (max == prev_max) && !force_update) | |
659 | return; | |
660 | ||
661 | prev_min = min; | |
662 | prev_max = max; | |
663 | ||
664 | // If we're allowed to alter the div assignment... | |
665 | if (!keep_divs) { | |
666 | // Use all divs for the positive range if there are no negative values | |
667 | if ((min == 0) && (neg_vdivs_ > 0)) { | |
668 | pos_vdivs_ += neg_vdivs_; | |
669 | neg_vdivs_ = 0; | |
670 | } | |
671 | ||
672 | // Split up the divs if there are negative values but no negative divs | |
673 | if ((min < 0) && (neg_vdivs_ == 0)) { | |
674 | neg_vdivs_ = pos_vdivs_ / 2; | |
675 | pos_vdivs_ -= neg_vdivs_; | |
676 | } | |
677 | } | |
678 | ||
679 | // If there is still no positive div when we need it, add one | |
680 | // (this can happen when pos_vdivs==neg_vdivs==0) | |
681 | if ((max > 0) && (pos_vdivs_ == 0)) { | |
682 | pos_vdivs_ = 1; | |
683 | owner_->extents_changed(false, true); | |
684 | } | |
685 | ||
686 | // If there is still no negative div when we need it, add one | |
687 | // (this can happen when pos_vdivs was 0 or 1 when trying to split) | |
688 | if ((min < 0) && (neg_vdivs_ == 0)) { | |
689 | neg_vdivs_ = 1; | |
690 | owner_->extents_changed(false, true); | |
691 | } | |
692 | ||
693 | double min_value_per_div; | |
694 | if ((pos_vdivs_ > 0) && (neg_vdivs_ > 0)) | |
695 | min_value_per_div = std::max(max / pos_vdivs_, -min / neg_vdivs_); | |
696 | else if (pos_vdivs_ > 0) | |
697 | min_value_per_div = max / pos_vdivs_; | |
698 | else | |
699 | min_value_per_div = -min / neg_vdivs_; | |
700 | ||
701 | // Find first scale value that is bigger than the value we need | |
702 | for (int i = MinScaleIndex; i < MaxScaleIndex; i++) | |
703 | if (get_resolution(i) > min_value_per_div) { | |
704 | scale_index_ = i; | |
705 | break; | |
706 | } | |
707 | ||
708 | update_scale(); | |
709 | } | |
710 | ||
711 | void AnalogSignal::populate_popup_form(QWidget *parent, QFormLayout *form) | |
712 | { | |
713 | // Add the standard options | |
714 | Signal::populate_popup_form(parent, form); | |
715 | ||
716 | QFormLayout *const layout = new QFormLayout; | |
717 | ||
718 | // Add div-related settings | |
719 | pvdiv_sb_ = new QSpinBox(parent); | |
720 | pvdiv_sb_->setRange(0, MaximumVDivs); | |
721 | pvdiv_sb_->setValue(pos_vdivs_); | |
722 | connect(pvdiv_sb_, SIGNAL(valueChanged(int)), | |
723 | this, SLOT(on_pos_vdivs_changed(int))); | |
724 | layout->addRow(tr("Number of pos vertical divs"), pvdiv_sb_); | |
725 | ||
726 | nvdiv_sb_ = new QSpinBox(parent); | |
727 | nvdiv_sb_->setRange(0, MaximumVDivs); | |
728 | nvdiv_sb_->setValue(neg_vdivs_); | |
729 | connect(nvdiv_sb_, SIGNAL(valueChanged(int)), | |
730 | this, SLOT(on_neg_vdivs_changed(int))); | |
731 | layout->addRow(tr("Number of neg vertical divs"), nvdiv_sb_); | |
732 | ||
733 | div_height_sb_ = new QSpinBox(parent); | |
734 | div_height_sb_->setRange(20, 1000); | |
735 | div_height_sb_->setSingleStep(5); | |
736 | div_height_sb_->setSuffix(tr(" pixels")); | |
737 | div_height_sb_->setValue(div_height_); | |
738 | connect(div_height_sb_, SIGNAL(valueChanged(int)), | |
739 | this, SLOT(on_div_height_changed(int))); | |
740 | layout->addRow(tr("Div height"), div_height_sb_); | |
741 | ||
742 | // Add the vertical resolution | |
743 | resolution_cb_ = new QComboBox(parent); | |
744 | ||
745 | for (int i = MinScaleIndex; i < MaxScaleIndex; i++) { | |
746 | const QString label = QString("%1").arg(get_resolution(i)); | |
747 | resolution_cb_->insertItem(0, label, QVariant(i)); | |
748 | } | |
749 | ||
750 | int cur_idx = resolution_cb_->findData(QVariant(scale_index_)); | |
751 | resolution_cb_->setCurrentIndex(cur_idx); | |
752 | ||
753 | connect(resolution_cb_, SIGNAL(currentIndexChanged(int)), | |
754 | this, SLOT(on_resolution_changed(int))); | |
755 | ||
756 | QGridLayout *const vdiv_layout = new QGridLayout; | |
757 | QLabel *const vdiv_unit = new QLabel(tr("V/div")); | |
758 | vdiv_layout->addWidget(resolution_cb_, 0, 0); | |
759 | vdiv_layout->addWidget(vdiv_unit, 0, 1); | |
760 | ||
761 | layout->addRow(tr("Vertical resolution"), vdiv_layout); | |
762 | ||
763 | // Add the autoranging checkbox | |
764 | QCheckBox* autoranging_cb = new QCheckBox(); | |
765 | autoranging_cb->setCheckState(autoranging_ ? Qt::Checked : Qt::Unchecked); | |
766 | ||
767 | connect(autoranging_cb, SIGNAL(stateChanged(int)), | |
768 | this, SLOT(on_autoranging_changed(int))); | |
769 | ||
770 | layout->addRow(tr("Autoranging"), autoranging_cb); | |
771 | ||
772 | // Add the conversion type dropdown | |
773 | conversion_cb_ = new QComboBox(); | |
774 | ||
775 | conversion_cb_->addItem(tr("none"), | |
776 | SignalBase::NoConversion); | |
777 | conversion_cb_->addItem(tr("to logic via threshold"), | |
778 | SignalBase::A2LConversionByThreshold); | |
779 | conversion_cb_->addItem(tr("to logic via schmitt-trigger"), | |
780 | SignalBase::A2LConversionBySchmittTrigger); | |
781 | ||
782 | cur_idx = conversion_cb_->findData(QVariant(base_->get_conversion_type())); | |
783 | conversion_cb_->setCurrentIndex(cur_idx); | |
784 | ||
785 | layout->addRow(tr("Conversion"), conversion_cb_); | |
786 | ||
787 | connect(conversion_cb_, SIGNAL(currentIndexChanged(int)), | |
788 | this, SLOT(on_conversion_changed(int))); | |
789 | ||
790 | // Add the conversion threshold settings | |
791 | conv_threshold_cb_ = new QComboBox(); | |
792 | conv_threshold_cb_->setEditable(true); | |
793 | ||
794 | layout->addRow(tr("Conversion threshold(s)"), conv_threshold_cb_); | |
795 | ||
796 | connect(conv_threshold_cb_, SIGNAL(currentIndexChanged(int)), | |
797 | this, SLOT(on_conv_threshold_changed(int))); | |
798 | connect(conv_threshold_cb_, SIGNAL(editTextChanged(const QString)), | |
799 | this, SLOT(on_conv_threshold_changed())); // index will be -1 | |
800 | ||
801 | // Add the display type dropdown | |
802 | display_type_cb_ = new QComboBox(); | |
803 | ||
804 | display_type_cb_->addItem(tr("analog"), DisplayAnalog); | |
805 | display_type_cb_->addItem(tr("converted"), DisplayConverted); | |
806 | display_type_cb_->addItem(tr("analog+converted"), DisplayBoth); | |
807 | ||
808 | cur_idx = display_type_cb_->findData(QVariant(display_type_)); | |
809 | display_type_cb_->setCurrentIndex(cur_idx); | |
810 | ||
811 | layout->addRow(tr("Show traces for"), display_type_cb_); | |
812 | ||
813 | connect(display_type_cb_, SIGNAL(currentIndexChanged(int)), | |
814 | this, SLOT(on_display_type_changed(int))); | |
815 | ||
816 | // Update the conversion widget contents and states | |
817 | update_conversion_widgets(); | |
818 | ||
819 | form->addRow(layout); | |
820 | } | |
821 | ||
822 | void AnalogSignal::on_samples_added() | |
823 | { | |
824 | perform_autoranging(false, false); | |
825 | } | |
826 | ||
827 | void AnalogSignal::on_pos_vdivs_changed(int vdivs) | |
828 | { | |
829 | if (vdivs == pos_vdivs_) | |
830 | return; | |
831 | ||
832 | pos_vdivs_ = vdivs; | |
833 | ||
834 | // There has to be at least one div, positive or negative | |
835 | if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) { | |
836 | pos_vdivs_ = 1; | |
837 | if (pvdiv_sb_) | |
838 | pvdiv_sb_->setValue(pos_vdivs_); | |
839 | } | |
840 | ||
841 | if (autoranging_) { | |
842 | perform_autoranging(true, true); | |
843 | ||
844 | // It could be that a positive or negative div was added, so update | |
845 | if (pvdiv_sb_) { | |
846 | pvdiv_sb_->setValue(pos_vdivs_); | |
847 | nvdiv_sb_->setValue(neg_vdivs_); | |
848 | } | |
849 | } | |
850 | ||
851 | if (owner_) { | |
852 | // Call order is important, otherwise the lazy event handler won't work | |
853 | owner_->extents_changed(false, true); | |
854 | owner_->row_item_appearance_changed(false, true); | |
855 | } | |
856 | } | |
857 | ||
858 | void AnalogSignal::on_neg_vdivs_changed(int vdivs) | |
859 | { | |
860 | if (vdivs == neg_vdivs_) | |
861 | return; | |
862 | ||
863 | neg_vdivs_ = vdivs; | |
864 | ||
865 | // There has to be at least one div, positive or negative | |
866 | if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) { | |
867 | pos_vdivs_ = 1; | |
868 | if (pvdiv_sb_) | |
869 | pvdiv_sb_->setValue(pos_vdivs_); | |
870 | } | |
871 | ||
872 | if (autoranging_) { | |
873 | perform_autoranging(true, true); | |
874 | ||
875 | // It could be that a positive or negative div was added, so update | |
876 | if (pvdiv_sb_) { | |
877 | pvdiv_sb_->setValue(pos_vdivs_); | |
878 | nvdiv_sb_->setValue(neg_vdivs_); | |
879 | } | |
880 | } | |
881 | ||
882 | if (owner_) { | |
883 | // Call order is important, otherwise the lazy event handler won't work | |
884 | owner_->extents_changed(false, true); | |
885 | owner_->row_item_appearance_changed(false, true); | |
886 | } | |
887 | } | |
888 | ||
889 | void AnalogSignal::on_div_height_changed(int height) | |
890 | { | |
891 | div_height_ = height; | |
892 | update_scale(); | |
893 | ||
894 | if (owner_) { | |
895 | // Call order is important, otherwise the lazy event handler won't work | |
896 | owner_->extents_changed(false, true); | |
897 | owner_->row_item_appearance_changed(false, true); | |
898 | } | |
899 | } | |
900 | ||
901 | void AnalogSignal::on_resolution_changed(int index) | |
902 | { | |
903 | scale_index_ = resolution_cb_->itemData(index).toInt(); | |
904 | update_scale(); | |
905 | ||
906 | if (owner_) | |
907 | owner_->row_item_appearance_changed(false, true); | |
908 | } | |
909 | ||
910 | void AnalogSignal::on_autoranging_changed(int state) | |
911 | { | |
912 | autoranging_ = (state == Qt::Checked); | |
913 | ||
914 | if (autoranging_) | |
915 | perform_autoranging(false, true); | |
916 | ||
917 | if (owner_) { | |
918 | // Call order is important, otherwise the lazy event handler won't work | |
919 | owner_->extents_changed(false, true); | |
920 | owner_->row_item_appearance_changed(false, true); | |
921 | } | |
922 | } | |
923 | ||
924 | void AnalogSignal::on_conversion_changed(int index) | |
925 | { | |
926 | SignalBase::ConversionType old_conv_type = base_->get_conversion_type(); | |
927 | ||
928 | SignalBase::ConversionType conv_type = | |
929 | (SignalBase::ConversionType)(conversion_cb_->itemData(index).toInt()); | |
930 | ||
931 | if (conv_type != old_conv_type) { | |
932 | base_->set_conversion_type(conv_type); | |
933 | update_conversion_widgets(); | |
934 | ||
935 | if (owner_) | |
936 | owner_->row_item_appearance_changed(false, true); | |
937 | } | |
938 | } | |
939 | ||
940 | void AnalogSignal::on_conv_threshold_changed(int index) | |
941 | { | |
942 | SignalBase::ConversionType conv_type = base_->get_conversion_type(); | |
943 | ||
944 | // Note: index is set to -1 if the text in the combo box matches none of | |
945 | // the entries in the combo box | |
946 | ||
947 | if ((index == -1) && (conv_threshold_cb_->currentText().length() == 0)) | |
948 | return; | |
949 | ||
950 | // The combo box entry with the custom value has user_data set to -1 | |
951 | const int user_data = conv_threshold_cb_->findText( | |
952 | conv_threshold_cb_->currentText()); | |
953 | ||
954 | const bool use_custom_thr = (index == -1) || (user_data == -1); | |
955 | ||
956 | if (conv_type == SignalBase::A2LConversionByThreshold && use_custom_thr) { | |
957 | // Not one of the preset values, try to parse the combo box text | |
958 | // Note: Regex loosely based on | |
959 | // https://txt2re.com/index-c++.php3?s=0.1V&1&-13 | |
960 | QString re1 = "([+-]?\\d*[\\.,]?\\d*)"; // Float value | |
961 | QString re2 = "([a-zA-Z]*)"; // SI unit | |
962 | QRegExp regex(re1 + re2); | |
963 | ||
964 | const QString text = conv_threshold_cb_->currentText(); | |
965 | if (!regex.exactMatch(text)) | |
966 | return; // String doesn't match the regex | |
967 | ||
968 | QStringList tokens = regex.capturedTexts(); | |
969 | ||
970 | // For now, we simply assume that the unit is volt without modifiers | |
971 | const double thr = tokens.at(1).toDouble(); | |
972 | ||
973 | // Only restart the conversion if the threshold was updated | |
974 | if (base_->set_conversion_option("threshold_value", thr)) | |
975 | delayed_conversion_starter_.start(); | |
976 | } | |
977 | ||
978 | if (conv_type == SignalBase::A2LConversionBySchmittTrigger && use_custom_thr) { | |
979 | // Not one of the preset values, try to parse the combo box text | |
980 | // Note: Regex loosely based on | |
981 | // https://txt2re.com/index-c++.php3?s=0.1V/0.2V&2&14&-22&3&15 | |
982 | QString re1 = "([+-]?\\d*[\\.,]?\\d*)"; // Float value | |
983 | QString re2 = "([a-zA-Z]*)"; // SI unit | |
984 | QString re3 = "\\/"; // Forward slash, not captured | |
985 | QString re4 = "([+-]?\\d*[\\.,]?\\d*)"; // Float value | |
986 | QString re5 = "([a-zA-Z]*)"; // SI unit | |
987 | QRegExp regex(re1 + re2 + re3 + re4 + re5); | |
988 | ||
989 | const QString text = conv_threshold_cb_->currentText(); | |
990 | if (!regex.exactMatch(text)) | |
991 | return; // String doesn't match the regex | |
992 | ||
993 | QStringList tokens = regex.capturedTexts(); | |
994 | ||
995 | // For now, we simply assume that the unit is volt without modifiers | |
996 | const double low_thr = tokens.at(1).toDouble(); | |
997 | const double high_thr = tokens.at(3).toDouble(); | |
998 | ||
999 | // Only restart the conversion if one of the options was updated | |
1000 | bool o1 = base_->set_conversion_option("threshold_value_low", low_thr); | |
1001 | bool o2 = base_->set_conversion_option("threshold_value_high", high_thr); | |
1002 | if (o1 || o2) | |
1003 | delayed_conversion_starter_.start(); | |
1004 | } | |
1005 | ||
1006 | base_->set_conversion_preset(index); | |
1007 | ||
1008 | // Immediately start the conversion if we're not asking for a delayed reaction | |
1009 | if (!delayed_conversion_starter_.isActive()) | |
1010 | base_->start_conversion(); | |
1011 | } | |
1012 | ||
1013 | void AnalogSignal::on_delayed_conversion_starter() | |
1014 | { | |
1015 | base_->start_conversion(); | |
1016 | } | |
1017 | ||
1018 | void AnalogSignal::on_display_type_changed(int index) | |
1019 | { | |
1020 | display_type_ = (DisplayType)(display_type_cb_->itemData(index).toInt()); | |
1021 | ||
1022 | if (owner_) | |
1023 | owner_->row_item_appearance_changed(false, true); | |
1024 | } | |
1025 | ||
1026 | } // namespace trace | |
1027 | } // namespace views | |
1028 | } // namespace pv |