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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 | namespace pv { | |
61 | namespace views { | |
62 | namespace trace { | |
63 | ||
64 | const QColor AnalogSignal::SignalColours[4] = { | |
65 | QColor(0xC4, 0xA0, 0x00), // Yellow | |
66 | QColor(0x87, 0x20, 0x7A), // Magenta | |
67 | QColor(0x20, 0x4A, 0x87), // Blue | |
68 | QColor(0x4E, 0x9A, 0x06) // Green | |
69 | }; | |
70 | ||
71 | const QColor AnalogSignal::GridMajorColor = QColor(0, 0, 0, 40 * 256 / 100); | |
72 | const QColor AnalogSignal::GridMinorColor = QColor(0, 0, 0, 20 * 256 / 100); | |
73 | ||
74 | const QColor AnalogSignal::SamplingPointColour(0x77, 0x77, 0x77); | |
75 | ||
76 | const int64_t AnalogSignal::TracePaintBlockSize = 1024 * 1024; // 4 MiB (due to float) | |
77 | const float AnalogSignal::EnvelopeThreshold = 64.0f; | |
78 | ||
79 | const int AnalogSignal::MaximumVDivs = 10; | |
80 | const int AnalogSignal::MinScaleIndex = -6; | |
81 | const int AnalogSignal::MaxScaleIndex = 7; | |
82 | ||
83 | const int AnalogSignal::InfoTextMarginRight = 20; | |
84 | const int AnalogSignal::InfoTextMarginBottom = 5; | |
85 | ||
86 | AnalogSignal::AnalogSignal( | |
87 | pv::Session &session, | |
88 | shared_ptr<data::SignalBase> base) : | |
89 | Signal(session, base), | |
90 | scale_index_(4), // 20 per div | |
91 | scale_index_drag_offset_(0), | |
92 | div_height_(3 * QFontMetrics(QApplication::font()).height()), | |
93 | pos_vdivs_(1), | |
94 | neg_vdivs_(1), | |
95 | resolution_(0), | |
96 | conversion_type_(data::SignalBase::NoConversion), | |
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 | base_->set_colour(SignalColours[base_->index() % countof(SignalColours)]); | |
107 | update_scale(); | |
108 | } | |
109 | ||
110 | shared_ptr<pv::data::SignalData> AnalogSignal::data() const | |
111 | { | |
112 | return base_->analog_data(); | |
113 | } | |
114 | ||
115 | void AnalogSignal::save_settings(QSettings &settings) const | |
116 | { | |
117 | settings.setValue("pos_vdivs", pos_vdivs_); | |
118 | settings.setValue("neg_vdivs", neg_vdivs_); | |
119 | settings.setValue("scale_index", scale_index_); | |
120 | settings.setValue("conversion_type", conversion_type_); | |
121 | settings.setValue("display_type", display_type_); | |
122 | settings.setValue("autoranging", autoranging_); | |
123 | } | |
124 | ||
125 | void AnalogSignal::restore_settings(QSettings &settings) | |
126 | { | |
127 | if (settings.contains("pos_vdivs")) | |
128 | pos_vdivs_ = settings.value("pos_vdivs").toInt(); | |
129 | ||
130 | if (settings.contains("neg_vdivs")) | |
131 | neg_vdivs_ = settings.value("neg_vdivs").toInt(); | |
132 | ||
133 | if (settings.contains("scale_index")) { | |
134 | scale_index_ = settings.value("scale_index").toInt(); | |
135 | update_scale(); | |
136 | } | |
137 | ||
138 | if (settings.contains("conversion_type")) { | |
139 | conversion_type_ = (data::SignalBase::ConversionType)(settings.value("conversion_type").toInt()); | |
140 | update_conversion_type(); | |
141 | } | |
142 | ||
143 | if (settings.contains("display_type")) | |
144 | display_type_ = (DisplayType)(settings.value("display_type").toInt()); | |
145 | ||
146 | if (settings.contains("autoranging")) | |
147 | autoranging_ = settings.value("autoranging").toBool(); | |
148 | } | |
149 | ||
150 | pair<int, int> AnalogSignal::v_extents() const | |
151 | { | |
152 | const int ph = pos_vdivs_ * div_height_; | |
153 | const int nh = neg_vdivs_ * div_height_; | |
154 | return make_pair(-ph, nh); | |
155 | } | |
156 | ||
157 | int AnalogSignal::scale_handle_offset() const | |
158 | { | |
159 | const int h = (pos_vdivs_ + neg_vdivs_) * div_height_; | |
160 | ||
161 | return ((scale_index_drag_offset_ - scale_index_) * h / 4) - h / 2; | |
162 | } | |
163 | ||
164 | void AnalogSignal::scale_handle_dragged(int offset) | |
165 | { | |
166 | const int h = (pos_vdivs_ + neg_vdivs_) * div_height_; | |
167 | ||
168 | scale_index_ = scale_index_drag_offset_ - (offset + h / 2) / (h / 4); | |
169 | ||
170 | update_scale(); | |
171 | } | |
172 | ||
173 | void AnalogSignal::scale_handle_drag_release() | |
174 | { | |
175 | scale_index_drag_offset_ = scale_index_; | |
176 | update_scale(); | |
177 | } | |
178 | ||
179 | void AnalogSignal::paint_back(QPainter &p, ViewItemPaintParams &pp) | |
180 | { | |
181 | if (base_->enabled()) { | |
182 | Trace::paint_back(p, pp); | |
183 | paint_axis(p, pp, get_visual_y()); | |
184 | } | |
185 | } | |
186 | ||
187 | void AnalogSignal::paint_mid(QPainter &p, ViewItemPaintParams &pp) | |
188 | { | |
189 | assert(base_->analog_data()); | |
190 | assert(owner_); | |
191 | ||
192 | const int y = get_visual_y(); | |
193 | ||
194 | if (!base_->enabled()) | |
195 | return; | |
196 | ||
197 | if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) { | |
198 | paint_grid(p, y, pp.left(), pp.right()); | |
199 | ||
200 | const deque< shared_ptr<pv::data::AnalogSegment> > &segments = | |
201 | base_->analog_data()->analog_segments(); | |
202 | if (segments.empty()) | |
203 | return; | |
204 | ||
205 | const shared_ptr<pv::data::AnalogSegment> &segment = | |
206 | segments.front(); | |
207 | ||
208 | const double pixels_offset = pp.pixels_offset(); | |
209 | const double samplerate = max(1.0, segment->samplerate()); | |
210 | const pv::util::Timestamp& start_time = segment->start_time(); | |
211 | const int64_t last_sample = segment->get_sample_count() - 1; | |
212 | const double samples_per_pixel = samplerate * pp.scale(); | |
213 | const pv::util::Timestamp start = samplerate * (pp.offset() - start_time); | |
214 | const pv::util::Timestamp end = start + samples_per_pixel * pp.width(); | |
215 | ||
216 | const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(), | |
217 | (int64_t)0), last_sample); | |
218 | const int64_t end_sample = min(max((ceil(end) + 1).convert_to<int64_t>(), | |
219 | (int64_t)0), last_sample); | |
220 | ||
221 | if (samples_per_pixel < EnvelopeThreshold) | |
222 | paint_trace(p, segment, y, pp.left(), | |
223 | start_sample, end_sample, | |
224 | pixels_offset, samples_per_pixel); | |
225 | else | |
226 | paint_envelope(p, segment, y, pp.left(), | |
227 | start_sample, end_sample, | |
228 | pixels_offset, samples_per_pixel); | |
229 | } | |
230 | ||
231 | if ((display_type_ == DisplayConverted) || (display_type_ == DisplayBoth)) { | |
232 | if (((conversion_type_ == data::SignalBase::A2LConversionByTreshold) || | |
233 | (conversion_type_ == data::SignalBase::A2LConversionBySchmittTrigger))) { | |
234 | ||
235 | paint_logic_mid(p, pp); | |
236 | } | |
237 | } | |
238 | } | |
239 | ||
240 | void AnalogSignal::paint_fore(QPainter &p, ViewItemPaintParams &pp) | |
241 | { | |
242 | if (!enabled()) | |
243 | return; | |
244 | ||
245 | if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) { | |
246 | const int y = get_visual_y(); | |
247 | ||
248 | // Show the info section on the right side of the trace | |
249 | const QString infotext = QString("%1 V/div").arg(resolution_); | |
250 | ||
251 | p.setPen(base_->colour()); | |
252 | p.setFont(QApplication::font()); | |
253 | ||
254 | const QRectF bounding_rect = QRectF(pp.left(), | |
255 | y + v_extents().first, | |
256 | pp.width() - InfoTextMarginRight, | |
257 | v_extents().second - v_extents().first - InfoTextMarginBottom); | |
258 | ||
259 | p.drawText(bounding_rect, Qt::AlignRight | Qt::AlignBottom, infotext); | |
260 | } | |
261 | } | |
262 | ||
263 | void AnalogSignal::paint_grid(QPainter &p, int y, int left, int right) | |
264 | { | |
265 | p.setRenderHint(QPainter::Antialiasing, false); | |
266 | ||
267 | GlobalSettings settings; | |
268 | const bool show_analog_minor_grid = | |
269 | settings.value(GlobalSettings::Key_View_ShowAnalogMinorGrid).toBool(); | |
270 | ||
271 | if (pos_vdivs_ > 0) { | |
272 | p.setPen(QPen(GridMajorColor, 1, Qt::DashLine)); | |
273 | for (int i = 1; i <= pos_vdivs_; i++) { | |
274 | const float dy = i * div_height_; | |
275 | p.drawLine(QLineF(left, y - dy, right, y - dy)); | |
276 | } | |
277 | } | |
278 | ||
279 | if ((pos_vdivs_ > 0) && show_analog_minor_grid) { | |
280 | p.setPen(QPen(GridMinorColor, 1, Qt::DashLine)); | |
281 | for (int i = 0; i < pos_vdivs_; i++) { | |
282 | const float dy = i * div_height_; | |
283 | const float dy25 = dy + (0.25 * div_height_); | |
284 | const float dy50 = dy + (0.50 * div_height_); | |
285 | const float dy75 = dy + (0.75 * div_height_); | |
286 | p.drawLine(QLineF(left, y - dy25, right, y - dy25)); | |
287 | p.drawLine(QLineF(left, y - dy50, right, y - dy50)); | |
288 | p.drawLine(QLineF(left, y - dy75, right, y - dy75)); | |
289 | } | |
290 | } | |
291 | ||
292 | if (neg_vdivs_ > 0) { | |
293 | p.setPen(QPen(GridMajorColor, 1, Qt::DashLine)); | |
294 | for (int i = 1; i <= neg_vdivs_; i++) { | |
295 | const float dy = i * div_height_; | |
296 | p.drawLine(QLineF(left, y + dy, right, y + dy)); | |
297 | } | |
298 | } | |
299 | ||
300 | if ((pos_vdivs_ > 0) && show_analog_minor_grid) { | |
301 | p.setPen(QPen(GridMinorColor, 1, Qt::DashLine)); | |
302 | for (int i = 0; i < neg_vdivs_; i++) { | |
303 | const float dy = i * div_height_; | |
304 | const float dy25 = dy + (0.25 * div_height_); | |
305 | const float dy50 = dy + (0.50 * div_height_); | |
306 | const float dy75 = dy + (0.75 * div_height_); | |
307 | p.drawLine(QLineF(left, y + dy25, right, y + dy25)); | |
308 | p.drawLine(QLineF(left, y + dy50, right, y + dy50)); | |
309 | p.drawLine(QLineF(left, y + dy75, right, y + dy75)); | |
310 | } | |
311 | } | |
312 | ||
313 | p.setRenderHint(QPainter::Antialiasing, true); | |
314 | } | |
315 | ||
316 | void AnalogSignal::paint_trace(QPainter &p, | |
317 | const shared_ptr<pv::data::AnalogSegment> &segment, | |
318 | int y, int left, const int64_t start, const int64_t end, | |
319 | const double pixels_offset, const double samples_per_pixel) | |
320 | { | |
321 | if (end <= start) | |
322 | return; | |
323 | ||
324 | // Calculate and paint the sampling points if enabled and useful | |
325 | GlobalSettings settings; | |
326 | const bool show_sampling_points = | |
327 | settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() && | |
328 | (samples_per_pixel < 0.25); | |
329 | ||
330 | p.setPen(base_->colour()); | |
331 | ||
332 | const int64_t points_count = end - start; | |
333 | ||
334 | QPointF *points = new QPointF[points_count]; | |
335 | QPointF *point = points; | |
336 | ||
337 | QRectF *sampling_points = nullptr; | |
338 | if (show_sampling_points) | |
339 | sampling_points = new QRectF[points_count]; | |
340 | QRectF *sampling_point = sampling_points; | |
341 | ||
342 | int64_t sample_count = min(points_count, TracePaintBlockSize); | |
343 | int64_t block_sample = 0; | |
344 | const float *sample_block = segment->get_samples(start, start + sample_count); | |
345 | ||
346 | const int w = 2; | |
347 | for (int64_t sample = start; sample != end; sample++, block_sample++) { | |
348 | ||
349 | if (block_sample == TracePaintBlockSize) { | |
350 | block_sample = 0; | |
351 | delete[] sample_block; | |
352 | sample_count = min(points_count - sample, TracePaintBlockSize); | |
353 | sample_block = segment->get_samples(sample, sample + sample_count); | |
354 | } | |
355 | ||
356 | const float x = (sample / samples_per_pixel - | |
357 | pixels_offset) + left; | |
358 | ||
359 | *point++ = QPointF(x, y - sample_block[block_sample] * scale_); | |
360 | ||
361 | if (show_sampling_points) | |
362 | *sampling_point++ = | |
363 | QRectF(x - (w / 2), y - sample_block[block_sample] * scale_ - (w / 2), w, w); | |
364 | } | |
365 | delete[] sample_block; | |
366 | ||
367 | p.drawPolyline(points, points_count); | |
368 | ||
369 | if (show_sampling_points) { | |
370 | p.setPen(SamplingPointColour); | |
371 | p.drawRects(sampling_points, points_count); | |
372 | delete[] sampling_points; | |
373 | } | |
374 | ||
375 | delete[] points; | |
376 | } | |
377 | ||
378 | void AnalogSignal::paint_envelope(QPainter &p, | |
379 | const shared_ptr<pv::data::AnalogSegment> &segment, | |
380 | int y, int left, const int64_t start, const int64_t end, | |
381 | const double pixels_offset, const double samples_per_pixel) | |
382 | { | |
383 | using pv::data::AnalogSegment; | |
384 | ||
385 | AnalogSegment::EnvelopeSection e; | |
386 | segment->get_envelope_section(e, start, end, samples_per_pixel); | |
387 | ||
388 | if (e.length < 2) | |
389 | return; | |
390 | ||
391 | p.setPen(QPen(Qt::NoPen)); | |
392 | p.setBrush(base_->colour()); | |
393 | ||
394 | QRectF *const rects = new QRectF[e.length]; | |
395 | QRectF *rect = rects; | |
396 | ||
397 | for (uint64_t sample = 0; sample < e.length - 1; sample++) { | |
398 | const float x = ((e.scale * sample + e.start) / | |
399 | samples_per_pixel - pixels_offset) + left; | |
400 | const AnalogSegment::EnvelopeSample *const s = | |
401 | e.samples + sample; | |
402 | ||
403 | // We overlap this sample with the next so that vertical | |
404 | // gaps do not appear during steep rising or falling edges | |
405 | const float b = y - max(s->max, (s + 1)->min) * scale_; | |
406 | const float t = y - min(s->min, (s + 1)->max) * scale_; | |
407 | ||
408 | float h = b - t; | |
409 | if (h >= 0.0f && h <= 1.0f) | |
410 | h = 1.0f; | |
411 | if (h <= 0.0f && h >= -1.0f) | |
412 | h = -1.0f; | |
413 | ||
414 | *rect++ = QRectF(x, t, 1.0f, h); | |
415 | } | |
416 | ||
417 | p.drawRects(rects, e.length); | |
418 | ||
419 | delete[] rects; | |
420 | delete[] e.samples; | |
421 | } | |
422 | ||
423 | void AnalogSignal::paint_logic_mid(QPainter &p, ViewItemPaintParams &pp) | |
424 | { | |
425 | QLineF *line; | |
426 | ||
427 | vector< pair<int64_t, bool> > edges; | |
428 | ||
429 | assert(base_); | |
430 | ||
431 | const int y = get_visual_y(); | |
432 | ||
433 | if (!base_->enabled() || !base_->logic_data()) | |
434 | return; | |
435 | ||
436 | const int signal_margin = | |
437 | QFontMetrics(QApplication::font()).height() / 2; | |
438 | ||
439 | const int ph = min(pos_vdivs_, 1) * div_height_; | |
440 | const int nh = min(neg_vdivs_, 1) * div_height_; | |
441 | const float high_offset = y - ph + signal_margin + 0.5f; | |
442 | const float low_offset = y + nh - signal_margin - 0.5f; | |
443 | ||
444 | const deque< shared_ptr<pv::data::LogicSegment> > &segments = | |
445 | base_->logic_data()->logic_segments(); | |
446 | ||
447 | if (segments.empty()) | |
448 | return; | |
449 | ||
450 | const shared_ptr<pv::data::LogicSegment> &segment = | |
451 | segments.front(); | |
452 | ||
453 | double samplerate = segment->samplerate(); | |
454 | ||
455 | // Show sample rate as 1Hz when it is unknown | |
456 | if (samplerate == 0.0) | |
457 | samplerate = 1.0; | |
458 | ||
459 | const double pixels_offset = pp.pixels_offset(); | |
460 | const pv::util::Timestamp& start_time = segment->start_time(); | |
461 | const int64_t last_sample = segment->get_sample_count() - 1; | |
462 | const double samples_per_pixel = samplerate * pp.scale(); | |
463 | const double pixels_per_sample = 1 / samples_per_pixel; | |
464 | const pv::util::Timestamp start = samplerate * (pp.offset() - start_time); | |
465 | const pv::util::Timestamp end = start + samples_per_pixel * pp.width(); | |
466 | ||
467 | const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(), | |
468 | (int64_t)0), last_sample); | |
469 | const uint64_t end_sample = min(max(ceil(end).convert_to<int64_t>(), | |
470 | (int64_t)0), last_sample); | |
471 | ||
472 | segment->get_subsampled_edges(edges, start_sample, end_sample, | |
473 | samples_per_pixel / LogicSignal::Oversampling, 0); | |
474 | assert(edges.size() >= 2); | |
475 | ||
476 | // Check whether we need to paint the sampling points | |
477 | GlobalSettings settings; | |
478 | const bool show_sampling_points = | |
479 | settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() && | |
480 | (samples_per_pixel < 0.25); | |
481 | ||
482 | vector<QRectF> sampling_points; | |
483 | float sampling_point_x = 0.0f; | |
484 | int64_t sampling_point_sample = start_sample; | |
485 | const int w = 2; | |
486 | ||
487 | if (show_sampling_points) { | |
488 | sampling_points.reserve(end_sample - start_sample + 1); | |
489 | sampling_point_x = (edges.cbegin()->first / samples_per_pixel - pixels_offset) + pp.left(); | |
490 | } | |
491 | ||
492 | // Paint the edges | |
493 | const unsigned int edge_count = edges.size() - 2; | |
494 | QLineF *const edge_lines = new QLineF[edge_count]; | |
495 | line = edge_lines; | |
496 | ||
497 | for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) { | |
498 | const float x = ((*i).first / samples_per_pixel - | |
499 | pixels_offset) + pp.left(); | |
500 | *line++ = QLineF(x, high_offset, x, low_offset); | |
501 | ||
502 | if (show_sampling_points) | |
503 | while (sampling_point_sample < (*i).first) { | |
504 | const float y = (*i).second ? low_offset : high_offset; | |
505 | sampling_points.emplace_back( | |
506 | QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w)); | |
507 | sampling_point_sample++; | |
508 | sampling_point_x += pixels_per_sample; | |
509 | }; | |
510 | } | |
511 | ||
512 | // Calculate the sample points from the last edge to the end of the trace | |
513 | if (show_sampling_points) | |
514 | while ((uint64_t)sampling_point_sample <= end_sample) { | |
515 | // Signal changed after the last edge, so the level is inverted | |
516 | const float y = (edges.cend() - 1)->second ? high_offset : low_offset; | |
517 | sampling_points.emplace_back( | |
518 | QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w)); | |
519 | sampling_point_sample++; | |
520 | sampling_point_x += pixels_per_sample; | |
521 | }; | |
522 | ||
523 | p.setPen(LogicSignal::EdgeColour); | |
524 | p.drawLines(edge_lines, edge_count); | |
525 | delete[] edge_lines; | |
526 | ||
527 | // Paint the caps | |
528 | const unsigned int max_cap_line_count = edges.size(); | |
529 | QLineF *const cap_lines = new QLineF[max_cap_line_count]; | |
530 | ||
531 | p.setPen(LogicSignal::HighColour); | |
532 | paint_logic_caps(p, cap_lines, edges, true, samples_per_pixel, | |
533 | pixels_offset, pp.left(), high_offset); | |
534 | p.setPen(LogicSignal::LowColour); | |
535 | paint_logic_caps(p, cap_lines, edges, false, samples_per_pixel, | |
536 | pixels_offset, pp.left(), low_offset); | |
537 | ||
538 | delete[] cap_lines; | |
539 | ||
540 | // Paint the sampling points | |
541 | if (show_sampling_points) { | |
542 | p.setPen(SamplingPointColour); | |
543 | p.drawRects(sampling_points.data(), sampling_points.size()); | |
544 | } | |
545 | } | |
546 | ||
547 | void AnalogSignal::paint_logic_caps(QPainter &p, QLineF *const lines, | |
548 | vector< pair<int64_t, bool> > &edges, bool level, | |
549 | double samples_per_pixel, double pixels_offset, float x_offset, | |
550 | float y_offset) | |
551 | { | |
552 | QLineF *line = lines; | |
553 | ||
554 | for (auto i = edges.begin(); i != (edges.end() - 1); i++) | |
555 | if ((*i).second == level) { | |
556 | *line++ = QLineF( | |
557 | ((*i).first / samples_per_pixel - | |
558 | pixels_offset) + x_offset, y_offset, | |
559 | ((*(i+1)).first / samples_per_pixel - | |
560 | pixels_offset) + x_offset, y_offset); | |
561 | } | |
562 | ||
563 | p.drawLines(lines, line - lines); | |
564 | } | |
565 | ||
566 | float AnalogSignal::get_resolution(int scale_index) | |
567 | { | |
568 | const float seq[] = {1.0f, 2.0f, 5.0f}; | |
569 | ||
570 | const int offset = numeric_limits<int>::max() / (2 * countof(seq)); | |
571 | const div_t d = div((int)(scale_index + countof(seq) * offset), | |
572 | countof(seq)); | |
573 | ||
574 | return powf(10.0f, d.quot - offset) * seq[d.rem]; | |
575 | } | |
576 | ||
577 | void AnalogSignal::update_scale() | |
578 | { | |
579 | resolution_ = get_resolution(scale_index_); | |
580 | scale_ = div_height_ / resolution_; | |
581 | } | |
582 | ||
583 | void AnalogSignal::update_conversion_type() | |
584 | { | |
585 | base_->set_conversion_type(conversion_type_); | |
586 | ||
587 | if (owner_) | |
588 | owner_->row_item_appearance_changed(false, true); | |
589 | } | |
590 | ||
591 | void AnalogSignal::perform_autoranging(bool keep_divs, bool force_update) | |
592 | { | |
593 | const deque< shared_ptr<pv::data::AnalogSegment> > &segments = | |
594 | base_->analog_data()->analog_segments(); | |
595 | ||
596 | if (segments.empty()) | |
597 | return; | |
598 | ||
599 | static double prev_min = 0, prev_max = 0; | |
600 | double min = 0, max = 0; | |
601 | ||
602 | for (shared_ptr<pv::data::AnalogSegment> segment : segments) { | |
603 | pair<double, double> mm = segment->get_min_max(); | |
604 | min = std::min(min, mm.first); | |
605 | max = std::max(max, mm.second); | |
606 | } | |
607 | ||
608 | if ((min == prev_min) && (max == prev_max) && !force_update) | |
609 | return; | |
610 | ||
611 | prev_min = min; | |
612 | prev_max = max; | |
613 | ||
614 | // If we're allowed to alter the div assignment... | |
615 | if (!keep_divs) { | |
616 | // Use all divs for the positive range if there are no negative values | |
617 | if ((min == 0) && (neg_vdivs_ > 0)) { | |
618 | pos_vdivs_ += neg_vdivs_; | |
619 | neg_vdivs_ = 0; | |
620 | } | |
621 | ||
622 | // Split up the divs if there are negative values but no negative divs | |
623 | if ((min < 0) && (neg_vdivs_ == 0)) { | |
624 | neg_vdivs_ = pos_vdivs_ / 2; | |
625 | pos_vdivs_ -= neg_vdivs_; | |
626 | } | |
627 | } | |
628 | ||
629 | // If there is still no positive div when we need it, add one | |
630 | // (this can happen when pos_vdivs==neg_vdivs==0) | |
631 | if ((max > 0) && (pos_vdivs_ == 0)) { | |
632 | pos_vdivs_ = 1; | |
633 | owner_->extents_changed(false, true); | |
634 | } | |
635 | ||
636 | // If there is still no negative div when we need it, add one | |
637 | // (this can happen when pos_vdivs was 0 or 1 when trying to split) | |
638 | if ((min < 0) && (neg_vdivs_ == 0)) { | |
639 | neg_vdivs_ = 1; | |
640 | owner_->extents_changed(false, true); | |
641 | } | |
642 | ||
643 | double min_value_per_div; | |
644 | if ((pos_vdivs_ > 0) && (neg_vdivs_ > 0)) | |
645 | min_value_per_div = std::max(max / pos_vdivs_, -min / neg_vdivs_); | |
646 | else if (pos_vdivs_ > 0) | |
647 | min_value_per_div = max / pos_vdivs_; | |
648 | else | |
649 | min_value_per_div = -min / neg_vdivs_; | |
650 | ||
651 | // Find first scale value that is bigger than the value we need | |
652 | for (int i = MinScaleIndex; i < MaxScaleIndex; i++) | |
653 | if (get_resolution(i) > min_value_per_div) { | |
654 | scale_index_ = i; | |
655 | break; | |
656 | } | |
657 | ||
658 | update_scale(); | |
659 | } | |
660 | ||
661 | void AnalogSignal::populate_popup_form(QWidget *parent, QFormLayout *form) | |
662 | { | |
663 | // Add the standard options | |
664 | Signal::populate_popup_form(parent, form); | |
665 | ||
666 | QFormLayout *const layout = new QFormLayout; | |
667 | ||
668 | // Add the number of vdivs | |
669 | pvdiv_sb_ = new QSpinBox(parent); | |
670 | pvdiv_sb_->setRange(0, MaximumVDivs); | |
671 | pvdiv_sb_->setValue(pos_vdivs_); | |
672 | connect(pvdiv_sb_, SIGNAL(valueChanged(int)), | |
673 | this, SLOT(on_pos_vdivs_changed(int))); | |
674 | layout->addRow(tr("Number of pos vertical divs"), pvdiv_sb_); | |
675 | ||
676 | nvdiv_sb_ = new QSpinBox(parent); | |
677 | nvdiv_sb_->setRange(0, MaximumVDivs); | |
678 | nvdiv_sb_->setValue(neg_vdivs_); | |
679 | connect(nvdiv_sb_, SIGNAL(valueChanged(int)), | |
680 | this, SLOT(on_neg_vdivs_changed(int))); | |
681 | layout->addRow(tr("Number of neg vertical divs"), nvdiv_sb_); | |
682 | ||
683 | // Add the vertical resolution | |
684 | resolution_cb_ = new QComboBox(parent); | |
685 | ||
686 | for (int i = MinScaleIndex; i < MaxScaleIndex; i++) { | |
687 | const QString label = QString("%1").arg(get_resolution(i)); | |
688 | resolution_cb_->insertItem(0, label, QVariant(i)); | |
689 | } | |
690 | ||
691 | int cur_idx = resolution_cb_->findData(QVariant(scale_index_)); | |
692 | resolution_cb_->setCurrentIndex(cur_idx); | |
693 | ||
694 | connect(resolution_cb_, SIGNAL(currentIndexChanged(int)), | |
695 | this, SLOT(on_resolution_changed(int))); | |
696 | ||
697 | QGridLayout *const vdiv_layout = new QGridLayout; | |
698 | QLabel *const vdiv_unit = new QLabel(tr("V/div")); | |
699 | vdiv_layout->addWidget(resolution_cb_, 0, 0); | |
700 | vdiv_layout->addWidget(vdiv_unit, 0, 1); | |
701 | ||
702 | layout->addRow(tr("Vertical resolution"), vdiv_layout); | |
703 | ||
704 | // Add the autoranging checkbox | |
705 | QCheckBox* autoranging_cb = new QCheckBox(); | |
706 | autoranging_cb->setCheckState(autoranging_ ? Qt::Checked : Qt::Unchecked); | |
707 | ||
708 | connect(autoranging_cb, SIGNAL(stateChanged(int)), | |
709 | this, SLOT(on_autoranging_changed(int))); | |
710 | ||
711 | layout->addRow(tr("Autoranging"), autoranging_cb); | |
712 | ||
713 | // Add the conversion type dropdown | |
714 | conversion_cb_ = new QComboBox(); | |
715 | ||
716 | conversion_cb_->addItem("none", data::SignalBase::NoConversion); | |
717 | conversion_cb_->addItem("to logic via threshold", data::SignalBase::A2LConversionByTreshold); | |
718 | conversion_cb_->addItem("to logic via schmitt-trigger", data::SignalBase::A2LConversionBySchmittTrigger); | |
719 | ||
720 | cur_idx = conversion_cb_->findData(QVariant(conversion_type_)); | |
721 | conversion_cb_->setCurrentIndex(cur_idx); | |
722 | ||
723 | layout->addRow(tr("Conversion"), conversion_cb_); | |
724 | ||
725 | connect(conversion_cb_, SIGNAL(currentIndexChanged(int)), | |
726 | this, SLOT(on_conversion_changed(int))); | |
727 | ||
728 | // Add the display type dropdown | |
729 | display_type_cb_ = new QComboBox(); | |
730 | ||
731 | display_type_cb_->addItem(tr("Analog"), DisplayAnalog); | |
732 | display_type_cb_->addItem(tr("Converted"), DisplayConverted); | |
733 | display_type_cb_->addItem(tr("Both"), DisplayBoth); | |
734 | ||
735 | cur_idx = display_type_cb_->findData(QVariant(display_type_)); | |
736 | display_type_cb_->setCurrentIndex(cur_idx); | |
737 | ||
738 | layout->addRow(tr("Traces to show:"), display_type_cb_); | |
739 | ||
740 | connect(display_type_cb_, SIGNAL(currentIndexChanged(int)), | |
741 | this, SLOT(on_display_type_changed(int))); | |
742 | ||
743 | form->addRow(layout); | |
744 | } | |
745 | ||
746 | void AnalogSignal::on_samples_added() | |
747 | { | |
748 | perform_autoranging(false, false); | |
749 | } | |
750 | ||
751 | void AnalogSignal::on_pos_vdivs_changed(int vdivs) | |
752 | { | |
753 | if (vdivs == pos_vdivs_) | |
754 | return; | |
755 | ||
756 | pos_vdivs_ = vdivs; | |
757 | ||
758 | // There has to be at least one div, positive or negative | |
759 | if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) { | |
760 | pos_vdivs_ = 1; | |
761 | if (pvdiv_sb_) | |
762 | pvdiv_sb_->setValue(pos_vdivs_); | |
763 | } | |
764 | ||
765 | if (autoranging_) { | |
766 | perform_autoranging(true, true); | |
767 | ||
768 | // It could be that a positive or negative div was added, so update | |
769 | if (pvdiv_sb_) { | |
770 | pvdiv_sb_->setValue(pos_vdivs_); | |
771 | nvdiv_sb_->setValue(neg_vdivs_); | |
772 | } | |
773 | } | |
774 | ||
775 | if (owner_) { | |
776 | // Call order is important, otherwise the lazy event handler won't work | |
777 | owner_->extents_changed(false, true); | |
778 | owner_->row_item_appearance_changed(false, true); | |
779 | } | |
780 | } | |
781 | ||
782 | void AnalogSignal::on_neg_vdivs_changed(int vdivs) | |
783 | { | |
784 | if (vdivs == neg_vdivs_) | |
785 | return; | |
786 | ||
787 | neg_vdivs_ = vdivs; | |
788 | ||
789 | // There has to be at least one div, positive or negative | |
790 | if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) { | |
791 | pos_vdivs_ = 1; | |
792 | if (pvdiv_sb_) | |
793 | pvdiv_sb_->setValue(pos_vdivs_); | |
794 | } | |
795 | ||
796 | if (autoranging_) { | |
797 | perform_autoranging(true, true); | |
798 | ||
799 | // It could be that a positive or negative div was added, so update | |
800 | if (pvdiv_sb_) { | |
801 | pvdiv_sb_->setValue(pos_vdivs_); | |
802 | nvdiv_sb_->setValue(neg_vdivs_); | |
803 | } | |
804 | } | |
805 | ||
806 | if (owner_) { | |
807 | // Call order is important, otherwise the lazy event handler won't work | |
808 | owner_->extents_changed(false, true); | |
809 | owner_->row_item_appearance_changed(false, true); | |
810 | } | |
811 | } | |
812 | ||
813 | void AnalogSignal::on_resolution_changed(int index) | |
814 | { | |
815 | scale_index_ = resolution_cb_->itemData(index).toInt(); | |
816 | update_scale(); | |
817 | ||
818 | if (owner_) | |
819 | owner_->row_item_appearance_changed(false, true); | |
820 | } | |
821 | ||
822 | void AnalogSignal::on_autoranging_changed(int state) | |
823 | { | |
824 | autoranging_ = (state == Qt::Checked); | |
825 | ||
826 | if (autoranging_) | |
827 | perform_autoranging(false, true); | |
828 | ||
829 | if (owner_) { | |
830 | // Call order is important, otherwise the lazy event handler won't work | |
831 | owner_->extents_changed(false, true); | |
832 | owner_->row_item_appearance_changed(false, true); | |
833 | } | |
834 | } | |
835 | ||
836 | void AnalogSignal::on_conversion_changed(int index) | |
837 | { | |
838 | data::SignalBase::ConversionType old_conv_type = conversion_type_; | |
839 | ||
840 | conversion_type_ = (data::SignalBase::ConversionType)(conversion_cb_->itemData(index).toInt()); | |
841 | ||
842 | if (conversion_type_ != old_conv_type) { | |
843 | base_->set_conversion_type(conversion_type_); | |
844 | update_conversion_type(); | |
845 | } | |
846 | } | |
847 | ||
848 | void AnalogSignal::on_display_type_changed(int index) | |
849 | { | |
850 | display_type_ = (DisplayType)(display_type_cb_->itemData(index).toInt()); | |
851 | ||
852 | if (owner_) | |
853 | owner_->row_item_appearance_changed(false, true); | |
854 | } | |
855 | ||
856 | } // namespace trace | |
857 | } // namespace views | |
858 | } // namespace pv |