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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 | pos_vdivs_(1), | |
93 | neg_vdivs_(1), | |
94 | resolution_(0), | |
95 | display_type_(DisplayBoth), | |
96 | autoranging_(true) | |
97 | { | |
98 | pv::data::Analog* analog_data = | |
99 | dynamic_cast<pv::data::Analog*>(data().get()); | |
100 | ||
101 | connect(analog_data, SIGNAL(samples_added(QObject*, uint64_t, uint64_t)), | |
102 | this, SLOT(on_samples_added())); | |
103 | ||
104 | GlobalSettings gs; | |
105 | div_height_ = gs.value(GlobalSettings::Key_View_DefaultDivHeight).toInt(); | |
106 | ||
107 | base_->set_colour(SignalColours[base_->index() % countof(SignalColours)]); | |
108 | update_scale(); | |
109 | } | |
110 | ||
111 | shared_ptr<pv::data::SignalData> AnalogSignal::data() const | |
112 | { | |
113 | return base_->analog_data(); | |
114 | } | |
115 | ||
116 | void AnalogSignal::save_settings(QSettings &settings) const | |
117 | { | |
118 | settings.setValue("pos_vdivs", pos_vdivs_); | |
119 | settings.setValue("neg_vdivs", neg_vdivs_); | |
120 | settings.setValue("scale_index", scale_index_); | |
121 | settings.setValue("display_type", display_type_); | |
122 | settings.setValue("autoranging", autoranging_); | |
123 | settings.setValue("div_height", div_height_); | |
124 | } | |
125 | ||
126 | void AnalogSignal::restore_settings(QSettings &settings) | |
127 | { | |
128 | if (settings.contains("pos_vdivs")) | |
129 | pos_vdivs_ = settings.value("pos_vdivs").toInt(); | |
130 | ||
131 | if (settings.contains("neg_vdivs")) | |
132 | neg_vdivs_ = settings.value("neg_vdivs").toInt(); | |
133 | ||
134 | if (settings.contains("scale_index")) { | |
135 | scale_index_ = settings.value("scale_index").toInt(); | |
136 | update_scale(); | |
137 | } | |
138 | ||
139 | if (settings.contains("display_type")) | |
140 | display_type_ = (DisplayType)(settings.value("display_type").toInt()); | |
141 | ||
142 | if (settings.contains("autoranging")) | |
143 | autoranging_ = settings.value("autoranging").toBool(); | |
144 | ||
145 | if (settings.contains("div_height")) { | |
146 | const int old_height = div_height_; | |
147 | div_height_ = settings.value("div_height").toInt(); | |
148 | ||
149 | if ((div_height_ != old_height) && owner_) { | |
150 | // Call order is important, otherwise the lazy event handler won't work | |
151 | owner_->extents_changed(false, true); | |
152 | owner_->row_item_appearance_changed(false, true); | |
153 | } | |
154 | } | |
155 | } | |
156 | ||
157 | pair<int, int> AnalogSignal::v_extents() const | |
158 | { | |
159 | const int ph = pos_vdivs_ * div_height_; | |
160 | const int nh = neg_vdivs_ * div_height_; | |
161 | return make_pair(-ph, nh); | |
162 | } | |
163 | ||
164 | int AnalogSignal::scale_handle_offset() const | |
165 | { | |
166 | const int h = (pos_vdivs_ + neg_vdivs_) * div_height_; | |
167 | ||
168 | return ((scale_index_drag_offset_ - scale_index_) * h / 4) - h / 2; | |
169 | } | |
170 | ||
171 | void AnalogSignal::scale_handle_dragged(int offset) | |
172 | { | |
173 | const int h = (pos_vdivs_ + neg_vdivs_) * div_height_; | |
174 | ||
175 | scale_index_ = scale_index_drag_offset_ - (offset + h / 2) / (h / 4); | |
176 | ||
177 | update_scale(); | |
178 | } | |
179 | ||
180 | void AnalogSignal::scale_handle_drag_release() | |
181 | { | |
182 | scale_index_drag_offset_ = scale_index_; | |
183 | update_scale(); | |
184 | } | |
185 | ||
186 | void AnalogSignal::paint_back(QPainter &p, ViewItemPaintParams &pp) | |
187 | { | |
188 | if (base_->enabled()) { | |
189 | Trace::paint_back(p, pp); | |
190 | paint_axis(p, pp, get_visual_y()); | |
191 | } | |
192 | } | |
193 | ||
194 | void AnalogSignal::paint_mid(QPainter &p, ViewItemPaintParams &pp) | |
195 | { | |
196 | assert(base_->analog_data()); | |
197 | assert(owner_); | |
198 | ||
199 | const int y = get_visual_y(); | |
200 | ||
201 | if (!base_->enabled()) | |
202 | return; | |
203 | ||
204 | if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) { | |
205 | paint_grid(p, y, pp.left(), pp.right()); | |
206 | ||
207 | const deque< shared_ptr<pv::data::AnalogSegment> > &segments = | |
208 | base_->analog_data()->analog_segments(); | |
209 | if (segments.empty()) | |
210 | return; | |
211 | ||
212 | const shared_ptr<pv::data::AnalogSegment> &segment = | |
213 | segments.front(); | |
214 | ||
215 | const double pixels_offset = pp.pixels_offset(); | |
216 | const double samplerate = max(1.0, segment->samplerate()); | |
217 | const pv::util::Timestamp& start_time = segment->start_time(); | |
218 | const int64_t last_sample = segment->get_sample_count() - 1; | |
219 | const double samples_per_pixel = samplerate * pp.scale(); | |
220 | const pv::util::Timestamp start = samplerate * (pp.offset() - start_time); | |
221 | const pv::util::Timestamp end = start + samples_per_pixel * pp.width(); | |
222 | ||
223 | const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(), | |
224 | (int64_t)0), last_sample); | |
225 | const int64_t end_sample = min(max((ceil(end) + 1).convert_to<int64_t>(), | |
226 | (int64_t)0), last_sample); | |
227 | ||
228 | if (samples_per_pixel < EnvelopeThreshold) | |
229 | paint_trace(p, segment, y, pp.left(), | |
230 | start_sample, end_sample, | |
231 | pixels_offset, samples_per_pixel); | |
232 | else | |
233 | paint_envelope(p, segment, y, pp.left(), | |
234 | start_sample, end_sample, | |
235 | pixels_offset, samples_per_pixel); | |
236 | } | |
237 | ||
238 | if ((display_type_ == DisplayConverted) || (display_type_ == DisplayBoth)) { | |
239 | const data::SignalBase::ConversionType conv_type = | |
240 | base_->get_conversion_type(); | |
241 | ||
242 | if (((conv_type == data::SignalBase::A2LConversionByTreshold) || | |
243 | (conv_type == data::SignalBase::A2LConversionBySchmittTrigger))) { | |
244 | ||
245 | paint_logic_mid(p, pp); | |
246 | } | |
247 | } | |
248 | } | |
249 | ||
250 | void AnalogSignal::paint_fore(QPainter &p, ViewItemPaintParams &pp) | |
251 | { | |
252 | if (!enabled()) | |
253 | return; | |
254 | ||
255 | if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) { | |
256 | const int y = get_visual_y(); | |
257 | ||
258 | // Show the info section on the right side of the trace | |
259 | const QString infotext = QString("%1 V/div").arg(resolution_); | |
260 | ||
261 | p.setPen(base_->colour()); | |
262 | p.setFont(QApplication::font()); | |
263 | ||
264 | const QRectF bounding_rect = QRectF(pp.left(), | |
265 | y + v_extents().first, | |
266 | pp.width() - InfoTextMarginRight, | |
267 | v_extents().second - v_extents().first - InfoTextMarginBottom); | |
268 | ||
269 | p.drawText(bounding_rect, Qt::AlignRight | Qt::AlignBottom, infotext); | |
270 | } | |
271 | } | |
272 | ||
273 | void AnalogSignal::paint_grid(QPainter &p, int y, int left, int right) | |
274 | { | |
275 | p.setRenderHint(QPainter::Antialiasing, false); | |
276 | ||
277 | GlobalSettings settings; | |
278 | const bool show_analog_minor_grid = | |
279 | settings.value(GlobalSettings::Key_View_ShowAnalogMinorGrid).toBool(); | |
280 | ||
281 | if (pos_vdivs_ > 0) { | |
282 | p.setPen(QPen(GridMajorColor, 1, Qt::DashLine)); | |
283 | for (int i = 1; i <= pos_vdivs_; i++) { | |
284 | const float dy = i * div_height_; | |
285 | p.drawLine(QLineF(left, y - dy, right, y - dy)); | |
286 | } | |
287 | } | |
288 | ||
289 | if ((pos_vdivs_ > 0) && show_analog_minor_grid) { | |
290 | p.setPen(QPen(GridMinorColor, 1, Qt::DashLine)); | |
291 | for (int i = 0; i < pos_vdivs_; i++) { | |
292 | const float dy = i * div_height_; | |
293 | const float dy25 = dy + (0.25 * div_height_); | |
294 | const float dy50 = dy + (0.50 * div_height_); | |
295 | const float dy75 = dy + (0.75 * div_height_); | |
296 | p.drawLine(QLineF(left, y - dy25, right, y - dy25)); | |
297 | p.drawLine(QLineF(left, y - dy50, right, y - dy50)); | |
298 | p.drawLine(QLineF(left, y - dy75, right, y - dy75)); | |
299 | } | |
300 | } | |
301 | ||
302 | if (neg_vdivs_ > 0) { | |
303 | p.setPen(QPen(GridMajorColor, 1, Qt::DashLine)); | |
304 | for (int i = 1; i <= neg_vdivs_; i++) { | |
305 | const float dy = i * div_height_; | |
306 | p.drawLine(QLineF(left, y + dy, right, y + dy)); | |
307 | } | |
308 | } | |
309 | ||
310 | if ((pos_vdivs_ > 0) && show_analog_minor_grid) { | |
311 | p.setPen(QPen(GridMinorColor, 1, Qt::DashLine)); | |
312 | for (int i = 0; i < neg_vdivs_; i++) { | |
313 | const float dy = i * div_height_; | |
314 | const float dy25 = dy + (0.25 * div_height_); | |
315 | const float dy50 = dy + (0.50 * div_height_); | |
316 | const float dy75 = dy + (0.75 * div_height_); | |
317 | p.drawLine(QLineF(left, y + dy25, right, y + dy25)); | |
318 | p.drawLine(QLineF(left, y + dy50, right, y + dy50)); | |
319 | p.drawLine(QLineF(left, y + dy75, right, y + dy75)); | |
320 | } | |
321 | } | |
322 | ||
323 | p.setRenderHint(QPainter::Antialiasing, true); | |
324 | } | |
325 | ||
326 | void AnalogSignal::paint_trace(QPainter &p, | |
327 | const shared_ptr<pv::data::AnalogSegment> &segment, | |
328 | int y, int left, const int64_t start, const int64_t end, | |
329 | const double pixels_offset, const double samples_per_pixel) | |
330 | { | |
331 | if (end <= start) | |
332 | return; | |
333 | ||
334 | // Calculate and paint the sampling points if enabled and useful | |
335 | GlobalSettings settings; | |
336 | const bool show_sampling_points = | |
337 | settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() && | |
338 | (samples_per_pixel < 0.25); | |
339 | ||
340 | p.setPen(base_->colour()); | |
341 | ||
342 | const int64_t points_count = end - start; | |
343 | ||
344 | QPointF *points = new QPointF[points_count]; | |
345 | QPointF *point = points; | |
346 | ||
347 | QRectF *sampling_points = nullptr; | |
348 | if (show_sampling_points) | |
349 | sampling_points = new QRectF[points_count]; | |
350 | QRectF *sampling_point = sampling_points; | |
351 | ||
352 | int64_t sample_count = min(points_count, TracePaintBlockSize); | |
353 | int64_t block_sample = 0; | |
354 | float *sample_block = new float[TracePaintBlockSize]; | |
355 | segment->get_samples(start, start + sample_count, sample_block); | |
356 | ||
357 | const int w = 2; | |
358 | for (int64_t sample = start; sample != end; sample++, block_sample++) { | |
359 | ||
360 | if (block_sample == TracePaintBlockSize) { | |
361 | block_sample = 0; | |
362 | sample_count = min(points_count - sample, TracePaintBlockSize); | |
363 | segment->get_samples(sample, sample + sample_count, sample_block); | |
364 | } | |
365 | ||
366 | const float x = (sample / samples_per_pixel - | |
367 | pixels_offset) + left; | |
368 | ||
369 | *point++ = QPointF(x, y - sample_block[block_sample] * scale_); | |
370 | ||
371 | if (show_sampling_points) | |
372 | *sampling_point++ = | |
373 | QRectF(x - (w / 2), y - sample_block[block_sample] * scale_ - (w / 2), w, w); | |
374 | } | |
375 | delete[] sample_block; | |
376 | ||
377 | p.drawPolyline(points, points_count); | |
378 | ||
379 | if (show_sampling_points) { | |
380 | p.setPen(SamplingPointColour); | |
381 | p.drawRects(sampling_points, points_count); | |
382 | delete[] sampling_points; | |
383 | } | |
384 | ||
385 | delete[] points; | |
386 | } | |
387 | ||
388 | void AnalogSignal::paint_envelope(QPainter &p, | |
389 | const shared_ptr<pv::data::AnalogSegment> &segment, | |
390 | int y, int left, const int64_t start, const int64_t end, | |
391 | const double pixels_offset, const double samples_per_pixel) | |
392 | { | |
393 | using pv::data::AnalogSegment; | |
394 | ||
395 | AnalogSegment::EnvelopeSection e; | |
396 | segment->get_envelope_section(e, start, end, samples_per_pixel); | |
397 | ||
398 | if (e.length < 2) | |
399 | return; | |
400 | ||
401 | p.setPen(QPen(Qt::NoPen)); | |
402 | p.setBrush(base_->colour()); | |
403 | ||
404 | QRectF *const rects = new QRectF[e.length]; | |
405 | QRectF *rect = rects; | |
406 | ||
407 | for (uint64_t sample = 0; sample < e.length - 1; sample++) { | |
408 | const float x = ((e.scale * sample + e.start) / | |
409 | samples_per_pixel - pixels_offset) + left; | |
410 | const AnalogSegment::EnvelopeSample *const s = | |
411 | e.samples + sample; | |
412 | ||
413 | // We overlap this sample with the next so that vertical | |
414 | // gaps do not appear during steep rising or falling edges | |
415 | const float b = y - max(s->max, (s + 1)->min) * scale_; | |
416 | const float t = y - min(s->min, (s + 1)->max) * scale_; | |
417 | ||
418 | float h = b - t; | |
419 | if (h >= 0.0f && h <= 1.0f) | |
420 | h = 1.0f; | |
421 | if (h <= 0.0f && h >= -1.0f) | |
422 | h = -1.0f; | |
423 | ||
424 | *rect++ = QRectF(x, t, 1.0f, h); | |
425 | } | |
426 | ||
427 | p.drawRects(rects, e.length); | |
428 | ||
429 | delete[] rects; | |
430 | delete[] e.samples; | |
431 | } | |
432 | ||
433 | void AnalogSignal::paint_logic_mid(QPainter &p, ViewItemPaintParams &pp) | |
434 | { | |
435 | QLineF *line; | |
436 | ||
437 | vector< pair<int64_t, bool> > edges; | |
438 | ||
439 | assert(base_); | |
440 | ||
441 | const int y = get_visual_y(); | |
442 | ||
443 | if (!base_->enabled() || !base_->logic_data()) | |
444 | return; | |
445 | ||
446 | const int signal_margin = | |
447 | QFontMetrics(QApplication::font()).height() / 2; | |
448 | ||
449 | const int ph = min(pos_vdivs_, 1) * div_height_; | |
450 | const int nh = min(neg_vdivs_, 1) * div_height_; | |
451 | const float high_offset = y - ph + signal_margin + 0.5f; | |
452 | const float low_offset = y + nh - signal_margin - 0.5f; | |
453 | ||
454 | const deque< shared_ptr<pv::data::LogicSegment> > &segments = | |
455 | base_->logic_data()->logic_segments(); | |
456 | ||
457 | if (segments.empty()) | |
458 | return; | |
459 | ||
460 | const shared_ptr<pv::data::LogicSegment> &segment = | |
461 | segments.front(); | |
462 | ||
463 | double samplerate = segment->samplerate(); | |
464 | ||
465 | // Show sample rate as 1Hz when it is unknown | |
466 | if (samplerate == 0.0) | |
467 | samplerate = 1.0; | |
468 | ||
469 | const double pixels_offset = pp.pixels_offset(); | |
470 | const pv::util::Timestamp& start_time = segment->start_time(); | |
471 | const int64_t last_sample = segment->get_sample_count() - 1; | |
472 | const double samples_per_pixel = samplerate * pp.scale(); | |
473 | const double pixels_per_sample = 1 / samples_per_pixel; | |
474 | const pv::util::Timestamp start = samplerate * (pp.offset() - start_time); | |
475 | const pv::util::Timestamp end = start + samples_per_pixel * pp.width(); | |
476 | ||
477 | const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(), | |
478 | (int64_t)0), last_sample); | |
479 | const uint64_t end_sample = min(max(ceil(end).convert_to<int64_t>(), | |
480 | (int64_t)0), last_sample); | |
481 | ||
482 | segment->get_subsampled_edges(edges, start_sample, end_sample, | |
483 | samples_per_pixel / LogicSignal::Oversampling, 0); | |
484 | assert(edges.size() >= 2); | |
485 | ||
486 | // Check whether we need to paint the sampling points | |
487 | GlobalSettings settings; | |
488 | const bool show_sampling_points = | |
489 | settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() && | |
490 | (samples_per_pixel < 0.25); | |
491 | ||
492 | vector<QRectF> sampling_points; | |
493 | float sampling_point_x = 0.0f; | |
494 | int64_t sampling_point_sample = start_sample; | |
495 | const int w = 2; | |
496 | ||
497 | if (show_sampling_points) { | |
498 | sampling_points.reserve(end_sample - start_sample + 1); | |
499 | sampling_point_x = (edges.cbegin()->first / samples_per_pixel - pixels_offset) + pp.left(); | |
500 | } | |
501 | ||
502 | // Paint the edges | |
503 | const unsigned int edge_count = edges.size() - 2; | |
504 | QLineF *const edge_lines = new QLineF[edge_count]; | |
505 | line = edge_lines; | |
506 | ||
507 | for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) { | |
508 | const float x = ((*i).first / samples_per_pixel - | |
509 | pixels_offset) + pp.left(); | |
510 | *line++ = QLineF(x, high_offset, x, low_offset); | |
511 | ||
512 | if (show_sampling_points) | |
513 | while (sampling_point_sample < (*i).first) { | |
514 | const float y = (*i).second ? low_offset : high_offset; | |
515 | sampling_points.emplace_back( | |
516 | QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w)); | |
517 | sampling_point_sample++; | |
518 | sampling_point_x += pixels_per_sample; | |
519 | }; | |
520 | } | |
521 | ||
522 | // Calculate the sample points from the last edge to the end of the trace | |
523 | if (show_sampling_points) | |
524 | while ((uint64_t)sampling_point_sample <= end_sample) { | |
525 | // Signal changed after the last edge, so the level is inverted | |
526 | const float y = (edges.cend() - 1)->second ? high_offset : low_offset; | |
527 | sampling_points.emplace_back( | |
528 | QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w)); | |
529 | sampling_point_sample++; | |
530 | sampling_point_x += pixels_per_sample; | |
531 | }; | |
532 | ||
533 | p.setPen(LogicSignal::EdgeColour); | |
534 | p.drawLines(edge_lines, edge_count); | |
535 | delete[] edge_lines; | |
536 | ||
537 | // Paint the caps | |
538 | const unsigned int max_cap_line_count = edges.size(); | |
539 | QLineF *const cap_lines = new QLineF[max_cap_line_count]; | |
540 | ||
541 | p.setPen(LogicSignal::HighColour); | |
542 | paint_logic_caps(p, cap_lines, edges, true, samples_per_pixel, | |
543 | pixels_offset, pp.left(), high_offset); | |
544 | p.setPen(LogicSignal::LowColour); | |
545 | paint_logic_caps(p, cap_lines, edges, false, samples_per_pixel, | |
546 | pixels_offset, pp.left(), low_offset); | |
547 | ||
548 | delete[] cap_lines; | |
549 | ||
550 | // Paint the sampling points | |
551 | if (show_sampling_points) { | |
552 | p.setPen(SamplingPointColour); | |
553 | p.drawRects(sampling_points.data(), sampling_points.size()); | |
554 | } | |
555 | } | |
556 | ||
557 | void AnalogSignal::paint_logic_caps(QPainter &p, QLineF *const lines, | |
558 | vector< pair<int64_t, bool> > &edges, bool level, | |
559 | double samples_per_pixel, double pixels_offset, float x_offset, | |
560 | float y_offset) | |
561 | { | |
562 | QLineF *line = lines; | |
563 | ||
564 | for (auto i = edges.begin(); i != (edges.end() - 1); i++) | |
565 | if ((*i).second == level) { | |
566 | *line++ = QLineF( | |
567 | ((*i).first / samples_per_pixel - | |
568 | pixels_offset) + x_offset, y_offset, | |
569 | ((*(i+1)).first / samples_per_pixel - | |
570 | pixels_offset) + x_offset, y_offset); | |
571 | } | |
572 | ||
573 | p.drawLines(lines, line - lines); | |
574 | } | |
575 | ||
576 | float AnalogSignal::get_resolution(int scale_index) | |
577 | { | |
578 | const float seq[] = {1.0f, 2.0f, 5.0f}; | |
579 | ||
580 | const int offset = numeric_limits<int>::max() / (2 * countof(seq)); | |
581 | const div_t d = div((int)(scale_index + countof(seq) * offset), | |
582 | countof(seq)); | |
583 | ||
584 | return powf(10.0f, d.quot - offset) * seq[d.rem]; | |
585 | } | |
586 | ||
587 | void AnalogSignal::update_scale() | |
588 | { | |
589 | resolution_ = get_resolution(scale_index_); | |
590 | scale_ = div_height_ / resolution_; | |
591 | } | |
592 | ||
593 | void AnalogSignal::perform_autoranging(bool keep_divs, bool force_update) | |
594 | { | |
595 | const deque< shared_ptr<pv::data::AnalogSegment> > &segments = | |
596 | base_->analog_data()->analog_segments(); | |
597 | ||
598 | if (segments.empty()) | |
599 | return; | |
600 | ||
601 | static double prev_min = 0, prev_max = 0; | |
602 | double min = 0, max = 0; | |
603 | ||
604 | for (shared_ptr<pv::data::AnalogSegment> segment : segments) { | |
605 | pair<double, double> mm = segment->get_min_max(); | |
606 | min = std::min(min, mm.first); | |
607 | max = std::max(max, mm.second); | |
608 | } | |
609 | ||
610 | if ((min == prev_min) && (max == prev_max) && !force_update) | |
611 | return; | |
612 | ||
613 | prev_min = min; | |
614 | prev_max = max; | |
615 | ||
616 | // If we're allowed to alter the div assignment... | |
617 | if (!keep_divs) { | |
618 | // Use all divs for the positive range if there are no negative values | |
619 | if ((min == 0) && (neg_vdivs_ > 0)) { | |
620 | pos_vdivs_ += neg_vdivs_; | |
621 | neg_vdivs_ = 0; | |
622 | } | |
623 | ||
624 | // Split up the divs if there are negative values but no negative divs | |
625 | if ((min < 0) && (neg_vdivs_ == 0)) { | |
626 | neg_vdivs_ = pos_vdivs_ / 2; | |
627 | pos_vdivs_ -= neg_vdivs_; | |
628 | } | |
629 | } | |
630 | ||
631 | // If there is still no positive div when we need it, add one | |
632 | // (this can happen when pos_vdivs==neg_vdivs==0) | |
633 | if ((max > 0) && (pos_vdivs_ == 0)) { | |
634 | pos_vdivs_ = 1; | |
635 | owner_->extents_changed(false, true); | |
636 | } | |
637 | ||
638 | // If there is still no negative div when we need it, add one | |
639 | // (this can happen when pos_vdivs was 0 or 1 when trying to split) | |
640 | if ((min < 0) && (neg_vdivs_ == 0)) { | |
641 | neg_vdivs_ = 1; | |
642 | owner_->extents_changed(false, true); | |
643 | } | |
644 | ||
645 | double min_value_per_div; | |
646 | if ((pos_vdivs_ > 0) && (neg_vdivs_ > 0)) | |
647 | min_value_per_div = std::max(max / pos_vdivs_, -min / neg_vdivs_); | |
648 | else if (pos_vdivs_ > 0) | |
649 | min_value_per_div = max / pos_vdivs_; | |
650 | else | |
651 | min_value_per_div = -min / neg_vdivs_; | |
652 | ||
653 | // Find first scale value that is bigger than the value we need | |
654 | for (int i = MinScaleIndex; i < MaxScaleIndex; i++) | |
655 | if (get_resolution(i) > min_value_per_div) { | |
656 | scale_index_ = i; | |
657 | break; | |
658 | } | |
659 | ||
660 | update_scale(); | |
661 | } | |
662 | ||
663 | void AnalogSignal::populate_popup_form(QWidget *parent, QFormLayout *form) | |
664 | { | |
665 | // Add the standard options | |
666 | Signal::populate_popup_form(parent, form); | |
667 | ||
668 | QFormLayout *const layout = new QFormLayout; | |
669 | ||
670 | // Add div-related settings | |
671 | pvdiv_sb_ = new QSpinBox(parent); | |
672 | pvdiv_sb_->setRange(0, MaximumVDivs); | |
673 | pvdiv_sb_->setValue(pos_vdivs_); | |
674 | connect(pvdiv_sb_, SIGNAL(valueChanged(int)), | |
675 | this, SLOT(on_pos_vdivs_changed(int))); | |
676 | layout->addRow(tr("Number of pos vertical divs"), pvdiv_sb_); | |
677 | ||
678 | nvdiv_sb_ = new QSpinBox(parent); | |
679 | nvdiv_sb_->setRange(0, MaximumVDivs); | |
680 | nvdiv_sb_->setValue(neg_vdivs_); | |
681 | connect(nvdiv_sb_, SIGNAL(valueChanged(int)), | |
682 | this, SLOT(on_neg_vdivs_changed(int))); | |
683 | layout->addRow(tr("Number of neg vertical divs"), nvdiv_sb_); | |
684 | ||
685 | div_height_sb_ = new QSpinBox(parent); | |
686 | div_height_sb_->setRange(20, 1000); | |
687 | div_height_sb_->setSingleStep(5); | |
688 | div_height_sb_->setSuffix(tr(" pixels")); | |
689 | div_height_sb_->setValue(div_height_); | |
690 | connect(div_height_sb_, SIGNAL(valueChanged(int)), | |
691 | this, SLOT(on_div_height_changed(int))); | |
692 | layout->addRow(tr("Div height"), div_height_sb_); | |
693 | ||
694 | // Add the vertical resolution | |
695 | resolution_cb_ = new QComboBox(parent); | |
696 | ||
697 | for (int i = MinScaleIndex; i < MaxScaleIndex; i++) { | |
698 | const QString label = QString("%1").arg(get_resolution(i)); | |
699 | resolution_cb_->insertItem(0, label, QVariant(i)); | |
700 | } | |
701 | ||
702 | int cur_idx = resolution_cb_->findData(QVariant(scale_index_)); | |
703 | resolution_cb_->setCurrentIndex(cur_idx); | |
704 | ||
705 | connect(resolution_cb_, SIGNAL(currentIndexChanged(int)), | |
706 | this, SLOT(on_resolution_changed(int))); | |
707 | ||
708 | QGridLayout *const vdiv_layout = new QGridLayout; | |
709 | QLabel *const vdiv_unit = new QLabel(tr("V/div")); | |
710 | vdiv_layout->addWidget(resolution_cb_, 0, 0); | |
711 | vdiv_layout->addWidget(vdiv_unit, 0, 1); | |
712 | ||
713 | layout->addRow(tr("Vertical resolution"), vdiv_layout); | |
714 | ||
715 | // Add the autoranging checkbox | |
716 | QCheckBox* autoranging_cb = new QCheckBox(); | |
717 | autoranging_cb->setCheckState(autoranging_ ? Qt::Checked : Qt::Unchecked); | |
718 | ||
719 | connect(autoranging_cb, SIGNAL(stateChanged(int)), | |
720 | this, SLOT(on_autoranging_changed(int))); | |
721 | ||
722 | layout->addRow(tr("Autoranging"), autoranging_cb); | |
723 | ||
724 | // Add the conversion type dropdown | |
725 | conversion_cb_ = new QComboBox(); | |
726 | ||
727 | conversion_cb_->addItem("none", data::SignalBase::NoConversion); | |
728 | conversion_cb_->addItem("to logic via threshold", data::SignalBase::A2LConversionByTreshold); | |
729 | conversion_cb_->addItem("to logic via schmitt-trigger", data::SignalBase::A2LConversionBySchmittTrigger); | |
730 | ||
731 | cur_idx = conversion_cb_->findData(QVariant(base_->get_conversion_type())); | |
732 | conversion_cb_->setCurrentIndex(cur_idx); | |
733 | ||
734 | layout->addRow(tr("Conversion"), conversion_cb_); | |
735 | ||
736 | connect(conversion_cb_, SIGNAL(currentIndexChanged(int)), | |
737 | this, SLOT(on_conversion_changed(int))); | |
738 | ||
739 | // Add the display type dropdown | |
740 | display_type_cb_ = new QComboBox(); | |
741 | ||
742 | display_type_cb_->addItem(tr("Analog"), DisplayAnalog); | |
743 | display_type_cb_->addItem(tr("Converted"), DisplayConverted); | |
744 | display_type_cb_->addItem(tr("Both"), DisplayBoth); | |
745 | ||
746 | cur_idx = display_type_cb_->findData(QVariant(display_type_)); | |
747 | display_type_cb_->setCurrentIndex(cur_idx); | |
748 | ||
749 | layout->addRow(tr("Traces to show:"), display_type_cb_); | |
750 | ||
751 | connect(display_type_cb_, SIGNAL(currentIndexChanged(int)), | |
752 | this, SLOT(on_display_type_changed(int))); | |
753 | ||
754 | form->addRow(layout); | |
755 | } | |
756 | ||
757 | void AnalogSignal::on_samples_added() | |
758 | { | |
759 | perform_autoranging(false, false); | |
760 | } | |
761 | ||
762 | void AnalogSignal::on_pos_vdivs_changed(int vdivs) | |
763 | { | |
764 | if (vdivs == pos_vdivs_) | |
765 | return; | |
766 | ||
767 | pos_vdivs_ = vdivs; | |
768 | ||
769 | // There has to be at least one div, positive or negative | |
770 | if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) { | |
771 | pos_vdivs_ = 1; | |
772 | if (pvdiv_sb_) | |
773 | pvdiv_sb_->setValue(pos_vdivs_); | |
774 | } | |
775 | ||
776 | if (autoranging_) { | |
777 | perform_autoranging(true, true); | |
778 | ||
779 | // It could be that a positive or negative div was added, so update | |
780 | if (pvdiv_sb_) { | |
781 | pvdiv_sb_->setValue(pos_vdivs_); | |
782 | nvdiv_sb_->setValue(neg_vdivs_); | |
783 | } | |
784 | } | |
785 | ||
786 | if (owner_) { | |
787 | // Call order is important, otherwise the lazy event handler won't work | |
788 | owner_->extents_changed(false, true); | |
789 | owner_->row_item_appearance_changed(false, true); | |
790 | } | |
791 | } | |
792 | ||
793 | void AnalogSignal::on_neg_vdivs_changed(int vdivs) | |
794 | { | |
795 | if (vdivs == neg_vdivs_) | |
796 | return; | |
797 | ||
798 | neg_vdivs_ = vdivs; | |
799 | ||
800 | // There has to be at least one div, positive or negative | |
801 | if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) { | |
802 | pos_vdivs_ = 1; | |
803 | if (pvdiv_sb_) | |
804 | pvdiv_sb_->setValue(pos_vdivs_); | |
805 | } | |
806 | ||
807 | if (autoranging_) { | |
808 | perform_autoranging(true, true); | |
809 | ||
810 | // It could be that a positive or negative div was added, so update | |
811 | if (pvdiv_sb_) { | |
812 | pvdiv_sb_->setValue(pos_vdivs_); | |
813 | nvdiv_sb_->setValue(neg_vdivs_); | |
814 | } | |
815 | } | |
816 | ||
817 | if (owner_) { | |
818 | // Call order is important, otherwise the lazy event handler won't work | |
819 | owner_->extents_changed(false, true); | |
820 | owner_->row_item_appearance_changed(false, true); | |
821 | } | |
822 | } | |
823 | ||
824 | void AnalogSignal::on_div_height_changed(int height) | |
825 | { | |
826 | div_height_ = height; | |
827 | update_scale(); | |
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_resolution_changed(int index) | |
837 | { | |
838 | scale_index_ = resolution_cb_->itemData(index).toInt(); | |
839 | update_scale(); | |
840 | ||
841 | if (owner_) | |
842 | owner_->row_item_appearance_changed(false, true); | |
843 | } | |
844 | ||
845 | void AnalogSignal::on_autoranging_changed(int state) | |
846 | { | |
847 | autoranging_ = (state == Qt::Checked); | |
848 | ||
849 | if (autoranging_) | |
850 | perform_autoranging(false, true); | |
851 | ||
852 | if (owner_) { | |
853 | // Call order is important, otherwise the lazy event handler won't work | |
854 | owner_->extents_changed(false, true); | |
855 | owner_->row_item_appearance_changed(false, true); | |
856 | } | |
857 | } | |
858 | ||
859 | void AnalogSignal::on_conversion_changed(int index) | |
860 | { | |
861 | data::SignalBase::ConversionType old_conv_type = | |
862 | base_->get_conversion_type(); | |
863 | ||
864 | data::SignalBase::ConversionType conv_type = | |
865 | (data::SignalBase::ConversionType)(conversion_cb_->itemData(index).toInt()); | |
866 | ||
867 | if (conv_type != old_conv_type) { | |
868 | base_->set_conversion_type(conv_type); | |
869 | ||
870 | if (owner_) | |
871 | owner_->row_item_appearance_changed(false, true); | |
872 | } | |
873 | } | |
874 | ||
875 | void AnalogSignal::on_display_type_changed(int index) | |
876 | { | |
877 | display_type_ = (DisplayType)(display_type_cb_->itemData(index).toInt()); | |
878 | ||
879 | if (owner_) | |
880 | owner_->row_item_appearance_changed(false, true); | |
881 | } | |
882 | ||
883 | } // namespace trace | |
884 | } // namespace views | |
885 | } // namespace pv |