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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 | #ifdef ENABLE_DECODE | |
21 | #include <libsigrokdecode/libsigrokdecode.h> | |
22 | #endif | |
23 | ||
24 | #include <extdef.h> | |
25 | ||
26 | #include <algorithm> | |
27 | #include <cassert> | |
28 | #include <climits> | |
29 | #include <cmath> | |
30 | #include <iostream> | |
31 | #include <iterator> | |
32 | #include <unordered_set> | |
33 | ||
34 | #include <boost/archive/text_iarchive.hpp> | |
35 | #include <boost/archive/text_oarchive.hpp> | |
36 | #include <boost/serialization/serialization.hpp> | |
37 | ||
38 | #include <QApplication> | |
39 | #include <QEvent> | |
40 | #include <QFontMetrics> | |
41 | #include <QMouseEvent> | |
42 | #include <QScrollBar> | |
43 | #include <QVBoxLayout> | |
44 | ||
45 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
46 | ||
47 | #include "analogsignal.hpp" | |
48 | #include "header.hpp" | |
49 | #include "logicsignal.hpp" | |
50 | #include "ruler.hpp" | |
51 | #include "signal.hpp" | |
52 | #include "tracegroup.hpp" | |
53 | #include "triggermarker.hpp" | |
54 | #include "view.hpp" | |
55 | #include "viewport.hpp" | |
56 | ||
57 | #include "pv/data/logic.hpp" | |
58 | #include "pv/data/logicsegment.hpp" | |
59 | #include "pv/devices/device.hpp" | |
60 | #include "pv/globalsettings.hpp" | |
61 | #include "pv/session.hpp" | |
62 | #include "pv/util.hpp" | |
63 | ||
64 | #ifdef ENABLE_DECODE | |
65 | #include "decodetrace.hpp" | |
66 | #endif | |
67 | ||
68 | using pv::data::SignalData; | |
69 | using pv::data::Segment; | |
70 | using pv::util::TimeUnit; | |
71 | using pv::util::Timestamp; | |
72 | ||
73 | using std::back_inserter; | |
74 | using std::copy_if; | |
75 | using std::count_if; | |
76 | using std::inserter; | |
77 | using std::max; | |
78 | using std::make_pair; | |
79 | using std::make_shared; | |
80 | using std::min; | |
81 | using std::pair; | |
82 | using std::set; | |
83 | using std::set_difference; | |
84 | using std::shared_ptr; | |
85 | using std::stringstream; | |
86 | using std::unordered_map; | |
87 | using std::unordered_set; | |
88 | using std::vector; | |
89 | ||
90 | namespace pv { | |
91 | namespace views { | |
92 | namespace trace { | |
93 | ||
94 | const Timestamp View::MaxScale("1e9"); | |
95 | const Timestamp View::MinScale("1e-12"); | |
96 | ||
97 | const int View::MaxScrollValue = INT_MAX / 2; | |
98 | ||
99 | const int View::ScaleUnits[3] = {1, 2, 5}; | |
100 | ||
101 | ||
102 | CustomScrollArea::CustomScrollArea(QWidget *parent) : | |
103 | QAbstractScrollArea(parent) | |
104 | { | |
105 | } | |
106 | ||
107 | bool CustomScrollArea::viewportEvent(QEvent *event) | |
108 | { | |
109 | switch (event->type()) { | |
110 | case QEvent::Paint: | |
111 | case QEvent::MouseButtonPress: | |
112 | case QEvent::MouseButtonRelease: | |
113 | case QEvent::MouseButtonDblClick: | |
114 | case QEvent::MouseMove: | |
115 | case QEvent::Wheel: | |
116 | case QEvent::TouchBegin: | |
117 | case QEvent::TouchUpdate: | |
118 | case QEvent::TouchEnd: | |
119 | return false; | |
120 | default: | |
121 | return QAbstractScrollArea::viewportEvent(event); | |
122 | } | |
123 | } | |
124 | ||
125 | View::View(Session &session, bool is_main_view, QWidget *parent) : | |
126 | ViewBase(session, is_main_view, parent), | |
127 | splitter_(new QSplitter()), | |
128 | scale_(1e-3), | |
129 | offset_(0), | |
130 | updating_scroll_(false), | |
131 | settings_restored_(false), | |
132 | sticky_scrolling_(false), // Default setting is set in MainWindow::setup_ui() | |
133 | always_zoom_to_fit_(false), | |
134 | tick_period_(0), | |
135 | tick_prefix_(pv::util::SIPrefix::yocto), | |
136 | tick_precision_(0), | |
137 | time_unit_(util::TimeUnit::Time), | |
138 | show_cursors_(false), | |
139 | cursors_(new CursorPair(*this)), | |
140 | next_flag_text_('A'), | |
141 | trigger_markers_(), | |
142 | hover_point_(-1, -1), | |
143 | scroll_needs_defaults_(true), | |
144 | saved_v_offset_(0), | |
145 | scale_at_acq_start_(0), | |
146 | offset_at_acq_start_(0), | |
147 | suppress_zoom_to_fit_after_acq_(false) | |
148 | { | |
149 | QVBoxLayout *root_layout = new QVBoxLayout(this); | |
150 | root_layout->setContentsMargins(0, 0, 0, 0); | |
151 | root_layout->addWidget(splitter_); | |
152 | ||
153 | viewport_ = new Viewport(*this); | |
154 | scrollarea_ = new CustomScrollArea(splitter_); | |
155 | scrollarea_->setViewport(viewport_); | |
156 | scrollarea_->setFrameShape(QFrame::NoFrame); | |
157 | ||
158 | ruler_ = new Ruler(*this); | |
159 | ||
160 | header_ = new Header(*this); | |
161 | header_->setMinimumWidth(10); // So that the arrow tips show at least | |
162 | ||
163 | // We put the header into a simple layout so that we can add the top margin, | |
164 | // allowing us to make it line up with the bottom of the ruler | |
165 | QWidget *header_container = new QWidget(); | |
166 | header_container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); | |
167 | QVBoxLayout *header_layout = new QVBoxLayout(header_container); | |
168 | header_layout->setContentsMargins(0, ruler_->sizeHint().height(), 0, 0); | |
169 | header_layout->addWidget(header_); | |
170 | ||
171 | // To let the ruler and scrollarea be on the same split pane, we need a layout | |
172 | QWidget *trace_container = new QWidget(); | |
173 | trace_container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); | |
174 | QVBoxLayout *trace_layout = new QVBoxLayout(trace_container); | |
175 | trace_layout->setSpacing(0); // We don't want space between the ruler and scrollarea | |
176 | trace_layout->setContentsMargins(0, 0, 0, 0); | |
177 | trace_layout->addWidget(ruler_); | |
178 | trace_layout->addWidget(scrollarea_); | |
179 | ||
180 | splitter_->addWidget(header_container); | |
181 | splitter_->addWidget(trace_container); | |
182 | splitter_->setHandleWidth(1); // Don't show a visible rubber band | |
183 | splitter_->setCollapsible(0, false); // Prevent the header from collapsing | |
184 | splitter_->setCollapsible(1, false); // Prevent the traces from collapsing | |
185 | splitter_->setStretchFactor(0, 0); // Prevent the panes from being resized | |
186 | splitter_->setStretchFactor(1, 1); // when the entire view is resized | |
187 | splitter_->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); | |
188 | ||
189 | viewport_->installEventFilter(this); | |
190 | ruler_->installEventFilter(this); | |
191 | header_->installEventFilter(this); | |
192 | ||
193 | // Set up settings and event handlers | |
194 | GlobalSettings settings; | |
195 | coloured_bg_ = settings.value(GlobalSettings::Key_View_ColouredBG).toBool(); | |
196 | ||
197 | connect(scrollarea_->horizontalScrollBar(), SIGNAL(valueChanged(int)), | |
198 | this, SLOT(h_scroll_value_changed(int))); | |
199 | connect(scrollarea_->verticalScrollBar(), SIGNAL(valueChanged(int)), | |
200 | this, SLOT(v_scroll_value_changed())); | |
201 | ||
202 | connect(header_, SIGNAL(selection_changed()), | |
203 | ruler_, SLOT(clear_selection())); | |
204 | connect(ruler_, SIGNAL(selection_changed()), | |
205 | header_, SLOT(clear_selection())); | |
206 | ||
207 | connect(header_, SIGNAL(selection_changed()), | |
208 | this, SIGNAL(selection_changed())); | |
209 | connect(ruler_, SIGNAL(selection_changed()), | |
210 | this, SIGNAL(selection_changed())); | |
211 | ||
212 | connect(splitter_, SIGNAL(splitterMoved(int, int)), | |
213 | this, SLOT(on_splitter_moved())); | |
214 | ||
215 | connect(&lazy_event_handler_, SIGNAL(timeout()), | |
216 | this, SLOT(process_sticky_events())); | |
217 | lazy_event_handler_.setSingleShot(true); | |
218 | ||
219 | // Trigger the initial event manually. The default device has signals | |
220 | // which were created before this object came into being | |
221 | signals_changed(); | |
222 | ||
223 | // make sure the transparent widgets are on the top | |
224 | ruler_->raise(); | |
225 | header_->raise(); | |
226 | ||
227 | // Update the zoom state | |
228 | calculate_tick_spacing(); | |
229 | } | |
230 | ||
231 | Session& View::session() | |
232 | { | |
233 | return session_; | |
234 | } | |
235 | ||
236 | const Session& View::session() const | |
237 | { | |
238 | return session_; | |
239 | } | |
240 | ||
241 | unordered_set< shared_ptr<Signal> > View::signals() const | |
242 | { | |
243 | return signals_; | |
244 | } | |
245 | ||
246 | void View::clear_signals() | |
247 | { | |
248 | ViewBase::clear_signalbases(); | |
249 | signals_.clear(); | |
250 | } | |
251 | ||
252 | void View::add_signal(const shared_ptr<Signal> signal) | |
253 | { | |
254 | ViewBase::add_signalbase(signal->base()); | |
255 | signals_.insert(signal); | |
256 | } | |
257 | ||
258 | #ifdef ENABLE_DECODE | |
259 | void View::clear_decode_signals() | |
260 | { | |
261 | decode_traces_.clear(); | |
262 | } | |
263 | ||
264 | void View::add_decode_signal(shared_ptr<data::DecodeSignal> signal) | |
265 | { | |
266 | shared_ptr<DecodeTrace> d( | |
267 | new DecodeTrace(session_, signal, decode_traces_.size())); | |
268 | decode_traces_.push_back(d); | |
269 | } | |
270 | ||
271 | void View::remove_decode_signal(shared_ptr<data::DecodeSignal> signal) | |
272 | { | |
273 | for (auto i = decode_traces_.begin(); i != decode_traces_.end(); i++) | |
274 | if ((*i)->base() == signal) { | |
275 | decode_traces_.erase(i); | |
276 | signals_changed(); | |
277 | return; | |
278 | } | |
279 | } | |
280 | #endif | |
281 | ||
282 | View* View::view() | |
283 | { | |
284 | return this; | |
285 | } | |
286 | ||
287 | const View* View::view() const | |
288 | { | |
289 | return this; | |
290 | } | |
291 | ||
292 | Viewport* View::viewport() | |
293 | { | |
294 | return viewport_; | |
295 | } | |
296 | ||
297 | const Viewport* View::viewport() const | |
298 | { | |
299 | return viewport_; | |
300 | } | |
301 | ||
302 | void View::save_settings(QSettings &settings) const | |
303 | { | |
304 | settings.setValue("scale", scale_); | |
305 | settings.setValue("v_offset", | |
306 | scrollarea_->verticalScrollBar()->sliderPosition()); | |
307 | ||
308 | settings.setValue("splitter_state", splitter_->saveState()); | |
309 | ||
310 | stringstream ss; | |
311 | boost::archive::text_oarchive oa(ss); | |
312 | oa << boost::serialization::make_nvp("offset", offset_); | |
313 | settings.setValue("offset", QString::fromStdString(ss.str())); | |
314 | ||
315 | for (shared_ptr<Signal> signal : signals_) { | |
316 | settings.beginGroup(signal->base()->internal_name()); | |
317 | signal->save_settings(settings); | |
318 | settings.endGroup(); | |
319 | } | |
320 | } | |
321 | ||
322 | void View::restore_settings(QSettings &settings) | |
323 | { | |
324 | // Note: It is assumed that this function is only called once, | |
325 | // immediately after restoring a previous session. | |
326 | ||
327 | if (settings.contains("scale")) | |
328 | set_scale(settings.value("scale").toDouble()); | |
329 | ||
330 | if (settings.contains("offset")) { | |
331 | util::Timestamp offset; | |
332 | stringstream ss; | |
333 | ss << settings.value("offset").toString().toStdString(); | |
334 | ||
335 | boost::archive::text_iarchive ia(ss); | |
336 | ia >> boost::serialization::make_nvp("offset", offset); | |
337 | ||
338 | set_offset(offset); | |
339 | } | |
340 | ||
341 | if (settings.contains("splitter_state")) | |
342 | splitter_->restoreState(settings.value("splitter_state").toByteArray()); | |
343 | ||
344 | for (shared_ptr<Signal> signal : signals_) { | |
345 | settings.beginGroup(signal->base()->internal_name()); | |
346 | signal->restore_settings(settings); | |
347 | settings.endGroup(); | |
348 | } | |
349 | ||
350 | if (settings.contains("v_offset")) { | |
351 | saved_v_offset_ = settings.value("v_offset").toInt(); | |
352 | set_v_offset(saved_v_offset_); | |
353 | scroll_needs_defaults_ = false; | |
354 | // Note: see eventFilter() for additional information | |
355 | } | |
356 | ||
357 | settings_restored_ = true; | |
358 | suppress_zoom_to_fit_after_acq_ = true; | |
359 | } | |
360 | ||
361 | vector< shared_ptr<TimeItem> > View::time_items() const | |
362 | { | |
363 | const vector<shared_ptr<Flag>> f(flags()); | |
364 | vector<shared_ptr<TimeItem>> items(f.begin(), f.end()); | |
365 | items.push_back(cursors_); | |
366 | items.push_back(cursors_->first()); | |
367 | items.push_back(cursors_->second()); | |
368 | ||
369 | for (auto trigger_marker : trigger_markers_) | |
370 | items.push_back(trigger_marker); | |
371 | ||
372 | return items; | |
373 | } | |
374 | ||
375 | double View::scale() const | |
376 | { | |
377 | return scale_; | |
378 | } | |
379 | ||
380 | void View::set_scale(double scale) | |
381 | { | |
382 | if (scale_ != scale) { | |
383 | scale_ = scale; | |
384 | scale_changed(); | |
385 | } | |
386 | } | |
387 | ||
388 | const Timestamp& View::offset() const | |
389 | { | |
390 | return offset_; | |
391 | } | |
392 | ||
393 | void View::set_offset(const pv::util::Timestamp& offset) | |
394 | { | |
395 | if (offset_ != offset) { | |
396 | offset_ = offset; | |
397 | offset_changed(); | |
398 | } | |
399 | } | |
400 | ||
401 | int View::owner_visual_v_offset() const | |
402 | { | |
403 | return -scrollarea_->verticalScrollBar()->sliderPosition(); | |
404 | } | |
405 | ||
406 | void View::set_v_offset(int offset) | |
407 | { | |
408 | scrollarea_->verticalScrollBar()->setSliderPosition(offset); | |
409 | header_->update(); | |
410 | viewport_->update(); | |
411 | } | |
412 | ||
413 | unsigned int View::depth() const | |
414 | { | |
415 | return 0; | |
416 | } | |
417 | ||
418 | pv::util::SIPrefix View::tick_prefix() const | |
419 | { | |
420 | return tick_prefix_; | |
421 | } | |
422 | ||
423 | void View::set_tick_prefix(pv::util::SIPrefix tick_prefix) | |
424 | { | |
425 | if (tick_prefix_ != tick_prefix) { | |
426 | tick_prefix_ = tick_prefix; | |
427 | tick_prefix_changed(); | |
428 | } | |
429 | } | |
430 | ||
431 | unsigned int View::tick_precision() const | |
432 | { | |
433 | return tick_precision_; | |
434 | } | |
435 | ||
436 | void View::set_tick_precision(unsigned tick_precision) | |
437 | { | |
438 | if (tick_precision_ != tick_precision) { | |
439 | tick_precision_ = tick_precision; | |
440 | tick_precision_changed(); | |
441 | } | |
442 | } | |
443 | ||
444 | const pv::util::Timestamp& View::tick_period() const | |
445 | { | |
446 | return tick_period_; | |
447 | } | |
448 | ||
449 | void View::set_tick_period(const pv::util::Timestamp& tick_period) | |
450 | { | |
451 | if (tick_period_ != tick_period) { | |
452 | tick_period_ = tick_period; | |
453 | tick_period_changed(); | |
454 | } | |
455 | } | |
456 | ||
457 | TimeUnit View::time_unit() const | |
458 | { | |
459 | return time_unit_; | |
460 | } | |
461 | ||
462 | void View::set_time_unit(pv::util::TimeUnit time_unit) | |
463 | { | |
464 | if (time_unit_ != time_unit) { | |
465 | time_unit_ = time_unit; | |
466 | time_unit_changed(); | |
467 | } | |
468 | } | |
469 | ||
470 | void View::zoom(double steps) | |
471 | { | |
472 | zoom(steps, viewport_->width() / 2); | |
473 | } | |
474 | ||
475 | void View::zoom(double steps, int offset) | |
476 | { | |
477 | set_zoom(scale_ * pow(3.0 / 2.0, -steps), offset); | |
478 | } | |
479 | ||
480 | void View::zoom_fit(bool gui_state) | |
481 | { | |
482 | // Act as one-shot when stopped, toggle along with the GUI otherwise | |
483 | if (session_.get_capture_state() == Session::Stopped) { | |
484 | always_zoom_to_fit_ = false; | |
485 | always_zoom_to_fit_changed(false); | |
486 | } else { | |
487 | always_zoom_to_fit_ = gui_state; | |
488 | always_zoom_to_fit_changed(gui_state); | |
489 | } | |
490 | ||
491 | const pair<Timestamp, Timestamp> extents = get_time_extents(); | |
492 | const Timestamp delta = extents.second - extents.first; | |
493 | if (delta < Timestamp("1e-12")) | |
494 | return; | |
495 | ||
496 | assert(viewport_); | |
497 | const int w = viewport_->width(); | |
498 | if (w <= 0) | |
499 | return; | |
500 | ||
501 | const Timestamp scale = max(min(delta / w, MaxScale), MinScale); | |
502 | set_scale_offset(scale.convert_to<double>(), extents.first); | |
503 | } | |
504 | ||
505 | void View::zoom_one_to_one() | |
506 | { | |
507 | using pv::data::SignalData; | |
508 | ||
509 | // Make a set of all the visible data objects | |
510 | set< shared_ptr<SignalData> > visible_data = get_visible_data(); | |
511 | if (visible_data.empty()) | |
512 | return; | |
513 | ||
514 | assert(viewport_); | |
515 | const int w = viewport_->width(); | |
516 | if (w <= 0) | |
517 | return; | |
518 | ||
519 | set_zoom(1.0 / session_.get_samplerate(), w / 2); | |
520 | } | |
521 | ||
522 | void View::set_scale_offset(double scale, const Timestamp& offset) | |
523 | { | |
524 | // Disable sticky scrolling / always zoom to fit when acquisition runs | |
525 | // and user drags the viewport | |
526 | if ((scale_ == scale) && (offset_ != offset) && | |
527 | (session_.get_capture_state() == Session::Running)) { | |
528 | ||
529 | if (sticky_scrolling_) { | |
530 | sticky_scrolling_ = false; | |
531 | sticky_scrolling_changed(false); | |
532 | } | |
533 | ||
534 | if (always_zoom_to_fit_) { | |
535 | always_zoom_to_fit_ = false; | |
536 | always_zoom_to_fit_changed(false); | |
537 | } | |
538 | } | |
539 | ||
540 | set_scale(scale); | |
541 | set_offset(offset); | |
542 | ||
543 | calculate_tick_spacing(); | |
544 | ||
545 | update_scroll(); | |
546 | ruler_->update(); | |
547 | viewport_->update(); | |
548 | } | |
549 | ||
550 | set< shared_ptr<SignalData> > View::get_visible_data() const | |
551 | { | |
552 | // Make a set of all the visible data objects | |
553 | set< shared_ptr<SignalData> > visible_data; | |
554 | for (const shared_ptr<Signal> sig : signals_) | |
555 | if (sig->enabled()) | |
556 | visible_data.insert(sig->data()); | |
557 | ||
558 | return visible_data; | |
559 | } | |
560 | ||
561 | pair<Timestamp, Timestamp> View::get_time_extents() const | |
562 | { | |
563 | boost::optional<Timestamp> left_time, right_time; | |
564 | const set< shared_ptr<SignalData> > visible_data = get_visible_data(); | |
565 | for (const shared_ptr<SignalData> d : visible_data) { | |
566 | const vector< shared_ptr<Segment> > segments = d->segments(); | |
567 | for (const shared_ptr<Segment> &s : segments) { | |
568 | double samplerate = s->samplerate(); | |
569 | samplerate = (samplerate <= 0.0) ? 1.0 : samplerate; | |
570 | ||
571 | const Timestamp start_time = s->start_time(); | |
572 | left_time = left_time ? | |
573 | min(*left_time, start_time) : | |
574 | start_time; | |
575 | right_time = right_time ? | |
576 | max(*right_time, start_time + d->max_sample_count() / samplerate) : | |
577 | start_time + d->max_sample_count() / samplerate; | |
578 | } | |
579 | } | |
580 | ||
581 | if (!left_time || !right_time) | |
582 | return make_pair(0, 0); | |
583 | ||
584 | assert(*left_time < *right_time); | |
585 | return make_pair(*left_time, *right_time); | |
586 | } | |
587 | ||
588 | void View::enable_show_sampling_points(bool state) | |
589 | { | |
590 | (void)state; | |
591 | ||
592 | viewport_->update(); | |
593 | } | |
594 | ||
595 | void View::enable_show_analog_minor_grid(bool state) | |
596 | { | |
597 | (void)state; | |
598 | ||
599 | viewport_->update(); | |
600 | } | |
601 | ||
602 | void View::enable_coloured_bg(bool state) | |
603 | { | |
604 | coloured_bg_ = state; | |
605 | viewport_->update(); | |
606 | } | |
607 | ||
608 | bool View::coloured_bg() const | |
609 | { | |
610 | return coloured_bg_; | |
611 | } | |
612 | ||
613 | bool View::cursors_shown() const | |
614 | { | |
615 | return show_cursors_; | |
616 | } | |
617 | ||
618 | void View::show_cursors(bool show) | |
619 | { | |
620 | show_cursors_ = show; | |
621 | ruler_->update(); | |
622 | viewport_->update(); | |
623 | } | |
624 | ||
625 | void View::centre_cursors() | |
626 | { | |
627 | const double time_width = scale_ * viewport_->width(); | |
628 | cursors_->first()->set_time(offset_ + time_width * 0.4); | |
629 | cursors_->second()->set_time(offset_ + time_width * 0.6); | |
630 | ruler_->update(); | |
631 | viewport_->update(); | |
632 | } | |
633 | ||
634 | shared_ptr<CursorPair> View::cursors() const | |
635 | { | |
636 | return cursors_; | |
637 | } | |
638 | ||
639 | void View::add_flag(const Timestamp& time) | |
640 | { | |
641 | flags_.push_back(make_shared<Flag>(*this, time, | |
642 | QString("%1").arg(next_flag_text_))); | |
643 | ||
644 | next_flag_text_ = (next_flag_text_ >= 'Z') ? 'A' : | |
645 | (next_flag_text_ + 1); | |
646 | ||
647 | time_item_appearance_changed(true, true); | |
648 | } | |
649 | ||
650 | void View::remove_flag(shared_ptr<Flag> flag) | |
651 | { | |
652 | flags_.remove(flag); | |
653 | time_item_appearance_changed(true, true); | |
654 | } | |
655 | ||
656 | vector< shared_ptr<Flag> > View::flags() const | |
657 | { | |
658 | vector< shared_ptr<Flag> > flags(flags_.begin(), flags_.end()); | |
659 | stable_sort(flags.begin(), flags.end(), | |
660 | [](const shared_ptr<Flag> &a, const shared_ptr<Flag> &b) { | |
661 | return a->time() < b->time(); | |
662 | }); | |
663 | ||
664 | return flags; | |
665 | } | |
666 | ||
667 | const QPoint& View::hover_point() const | |
668 | { | |
669 | return hover_point_; | |
670 | } | |
671 | ||
672 | void View::restack_all_trace_tree_items() | |
673 | { | |
674 | // Make a list of owners that is sorted from deepest first | |
675 | const vector<shared_ptr<TraceTreeItem>> items( | |
676 | list_by_type<TraceTreeItem>()); | |
677 | set< TraceTreeItemOwner* > owners; | |
678 | for (const auto &r : items) | |
679 | owners.insert(r->owner()); | |
680 | vector< TraceTreeItemOwner* > sorted_owners(owners.begin(), owners.end()); | |
681 | sort(sorted_owners.begin(), sorted_owners.end(), | |
682 | [](const TraceTreeItemOwner* a, const TraceTreeItemOwner *b) { | |
683 | return a->depth() > b->depth(); }); | |
684 | ||
685 | // Restack the items recursively | |
686 | for (auto &o : sorted_owners) | |
687 | o->restack_items(); | |
688 | ||
689 | // Animate the items to their destination | |
690 | for (const auto &i : items) | |
691 | i->animate_to_layout_v_offset(); | |
692 | } | |
693 | ||
694 | void View::trigger_event(util::Timestamp location) | |
695 | { | |
696 | trigger_markers_.push_back(make_shared<TriggerMarker>(*this, location)); | |
697 | } | |
698 | ||
699 | void View::get_scroll_layout(double &length, Timestamp &offset) const | |
700 | { | |
701 | const pair<Timestamp, Timestamp> extents = get_time_extents(); | |
702 | length = ((extents.second - extents.first) / scale_).convert_to<double>(); | |
703 | offset = offset_ / scale_; | |
704 | } | |
705 | ||
706 | void View::set_zoom(double scale, int offset) | |
707 | { | |
708 | // Reset the "always zoom to fit" feature as the user changed the zoom | |
709 | always_zoom_to_fit_ = false; | |
710 | always_zoom_to_fit_changed(false); | |
711 | ||
712 | const Timestamp cursor_offset = offset_ + scale_ * offset; | |
713 | const Timestamp new_scale = max(min(Timestamp(scale), MaxScale), MinScale); | |
714 | const Timestamp new_offset = cursor_offset - new_scale * offset; | |
715 | set_scale_offset(new_scale.convert_to<double>(), new_offset); | |
716 | } | |
717 | ||
718 | void View::calculate_tick_spacing() | |
719 | { | |
720 | const double SpacingIncrement = 10.0f; | |
721 | const double MinValueSpacing = 40.0f; | |
722 | ||
723 | // Figure out the highest numeric value visible on a label | |
724 | const QSize areaSize = viewport_->size(); | |
725 | const Timestamp max_time = max(fabs(offset_), | |
726 | fabs(offset_ + scale_ * areaSize.width())); | |
727 | ||
728 | double min_width = SpacingIncrement; | |
729 | double label_width, tick_period_width; | |
730 | ||
731 | QFontMetrics m(QApplication::font()); | |
732 | ||
733 | // Copies of the member variables with the same name, used in the calculation | |
734 | // and written back afterwards, so that we don't emit signals all the time | |
735 | // during the calculation. | |
736 | pv::util::Timestamp tick_period = tick_period_; | |
737 | pv::util::SIPrefix tick_prefix = tick_prefix_; | |
738 | unsigned tick_precision = tick_precision_; | |
739 | ||
740 | do { | |
741 | const double min_period = scale_ * min_width; | |
742 | ||
743 | const int order = (int)floorf(log10f(min_period)); | |
744 | const pv::util::Timestamp order_decimal = | |
745 | pow(pv::util::Timestamp(10), order); | |
746 | ||
747 | // Allow for a margin of error so that a scale unit of 1 can be used. | |
748 | // Otherwise, for a SU of 1 the tick period will almost always be below | |
749 | // the min_period by a small amount - and thus skipped in favor of 2. | |
750 | // Note: margin assumes that SU[0] and SU[1] contain the smallest values | |
751 | double tp_margin = (ScaleUnits[0] + ScaleUnits[1]) / 2.0; | |
752 | double tp_with_margin; | |
753 | unsigned int unit = 0; | |
754 | ||
755 | do { | |
756 | tp_with_margin = order_decimal.convert_to<double>() * | |
757 | (ScaleUnits[unit++] + tp_margin); | |
758 | } while (tp_with_margin < min_period && unit < countof(ScaleUnits)); | |
759 | ||
760 | tick_period = order_decimal * ScaleUnits[unit - 1]; | |
761 | tick_prefix = static_cast<pv::util::SIPrefix>( | |
762 | (order - pv::util::exponent(pv::util::SIPrefix::yocto)) / 3); | |
763 | ||
764 | // Precision is the number of fractional digits required, not | |
765 | // taking the prefix into account (and it must never be negative) | |
766 | tick_precision = max(ceil(log10(1 / tick_period)).convert_to<int>(), 0); | |
767 | ||
768 | tick_period_width = (tick_period / scale_).convert_to<double>(); | |
769 | ||
770 | const QString label_text = Ruler::format_time_with_distance( | |
771 | tick_period, max_time, tick_prefix, time_unit_, tick_precision); | |
772 | ||
773 | label_width = m.boundingRect(0, 0, INT_MAX, INT_MAX, | |
774 | Qt::AlignLeft | Qt::AlignTop, label_text).width() + | |
775 | MinValueSpacing; | |
776 | ||
777 | min_width += SpacingIncrement; | |
778 | } while (tick_period_width < label_width); | |
779 | ||
780 | set_tick_period(tick_period); | |
781 | set_tick_prefix(tick_prefix); | |
782 | set_tick_precision(tick_precision); | |
783 | } | |
784 | ||
785 | void View::adjust_top_margin() | |
786 | { | |
787 | assert(viewport_); | |
788 | ||
789 | const QSize areaSize = viewport_->size(); | |
790 | ||
791 | const pair<int, int> extents = v_extents(); | |
792 | const int top_margin = owner_visual_v_offset() + extents.first; | |
793 | const int trace_bottom = owner_visual_v_offset() + extents.first + extents.second; | |
794 | ||
795 | // Do we have empty space at the top while the last trace goes out of screen? | |
796 | if ((top_margin > 0) && (trace_bottom > areaSize.height())) { | |
797 | const int trace_height = extents.second - extents.first; | |
798 | ||
799 | // Center everything vertically if there is enough space | |
800 | if (areaSize.height() >= trace_height) | |
801 | set_v_offset(extents.first - | |
802 | ((areaSize.height() - trace_height) / 2)); | |
803 | else | |
804 | // Remove the top margin to make as many traces fit on screen as possible | |
805 | set_v_offset(extents.first); | |
806 | } | |
807 | } | |
808 | ||
809 | void View::update_scroll() | |
810 | { | |
811 | assert(viewport_); | |
812 | QScrollBar *hscrollbar = scrollarea_->horizontalScrollBar(); | |
813 | QScrollBar *vscrollbar = scrollarea_->verticalScrollBar(); | |
814 | ||
815 | const QSize areaSize = viewport_->size(); | |
816 | ||
817 | // Set the horizontal scroll bar | |
818 | double length = 0; | |
819 | Timestamp offset; | |
820 | get_scroll_layout(length, offset); | |
821 | length = max(length - areaSize.width(), 0.0); | |
822 | ||
823 | int major_tick_distance = (tick_period_ / scale_).convert_to<int>(); | |
824 | ||
825 | hscrollbar->setPageStep(areaSize.width() / 2); | |
826 | hscrollbar->setSingleStep(major_tick_distance); | |
827 | ||
828 | updating_scroll_ = true; | |
829 | ||
830 | if (length < MaxScrollValue) { | |
831 | hscrollbar->setRange(0, length); | |
832 | hscrollbar->setSliderPosition(offset.convert_to<double>()); | |
833 | } else { | |
834 | hscrollbar->setRange(0, MaxScrollValue); | |
835 | hscrollbar->setSliderPosition( | |
836 | (offset_ * MaxScrollValue / (scale_ * length)).convert_to<double>()); | |
837 | } | |
838 | ||
839 | updating_scroll_ = false; | |
840 | ||
841 | // Set the vertical scrollbar | |
842 | vscrollbar->setPageStep(areaSize.height()); | |
843 | vscrollbar->setSingleStep(areaSize.height() / 8); | |
844 | ||
845 | const pair<int, int> extents = v_extents(); | |
846 | ||
847 | // Don't change the scrollbar range if there are no traces | |
848 | if (extents.first != extents.second) | |
849 | vscrollbar->setRange(extents.first - areaSize.height(), | |
850 | extents.second); | |
851 | ||
852 | if (scroll_needs_defaults_) | |
853 | set_scroll_default(); | |
854 | } | |
855 | ||
856 | void View::reset_scroll() | |
857 | { | |
858 | scrollarea_->verticalScrollBar()->setRange(0, 0); | |
859 | } | |
860 | ||
861 | void View::set_scroll_default() | |
862 | { | |
863 | assert(viewport_); | |
864 | ||
865 | const QSize areaSize = viewport_->size(); | |
866 | ||
867 | const pair<int, int> extents = v_extents(); | |
868 | const int trace_height = extents.second - extents.first; | |
869 | ||
870 | // Do all traces fit in the view? | |
871 | if (areaSize.height() >= trace_height) | |
872 | // Center all traces vertically | |
873 | set_v_offset(extents.first - | |
874 | ((areaSize.height() - trace_height) / 2)); | |
875 | else | |
876 | // Put the first trace at the top, letting the bottom ones overflow | |
877 | set_v_offset(extents.first); | |
878 | } | |
879 | ||
880 | bool View::header_was_shrunk() const | |
881 | { | |
882 | const int header_pane_width = splitter_->sizes().front(); | |
883 | const int header_width = header_->extended_size_hint().width(); | |
884 | ||
885 | // Allow for a slight margin of error so that we also accept | |
886 | // slight differences when e.g. a label name change increased | |
887 | // the overall width | |
888 | return (header_pane_width < (header_width - 10)); | |
889 | } | |
890 | ||
891 | void View::expand_header_to_fit() | |
892 | { | |
893 | int splitter_area_width = 0; | |
894 | for (int w : splitter_->sizes()) | |
895 | splitter_area_width += w; | |
896 | ||
897 | // Make sure the header has enough horizontal space to show all labels fully | |
898 | QList<int> pane_sizes; | |
899 | pane_sizes.push_back(header_->extended_size_hint().width()); | |
900 | pane_sizes.push_back(splitter_area_width - header_->extended_size_hint().width()); | |
901 | splitter_->setSizes(pane_sizes); | |
902 | } | |
903 | ||
904 | void View::update_layout() | |
905 | { | |
906 | update_scroll(); | |
907 | } | |
908 | ||
909 | TraceTreeItemOwner* View::find_prevalent_trace_group( | |
910 | const shared_ptr<sigrok::ChannelGroup> &group, | |
911 | const unordered_map<shared_ptr<data::SignalBase>, shared_ptr<Signal> > | |
912 | &signal_map) | |
913 | { | |
914 | assert(group); | |
915 | ||
916 | unordered_set<TraceTreeItemOwner*> owners; | |
917 | vector<TraceTreeItemOwner*> owner_list; | |
918 | ||
919 | // Make a set and a list of all the owners | |
920 | for (const auto &channel : group->channels()) { | |
921 | for (auto entry : signal_map) { | |
922 | if (entry.first->channel() == channel) { | |
923 | TraceTreeItemOwner *const o = (entry.second)->owner(); | |
924 | owner_list.push_back(o); | |
925 | owners.insert(o); | |
926 | } | |
927 | } | |
928 | } | |
929 | ||
930 | // Iterate through the list of owners, and find the most prevalent | |
931 | size_t max_prevalence = 0; | |
932 | TraceTreeItemOwner *prevalent_owner = nullptr; | |
933 | for (TraceTreeItemOwner *owner : owners) { | |
934 | const size_t prevalence = count_if( | |
935 | owner_list.begin(), owner_list.end(), | |
936 | [&](TraceTreeItemOwner *o) { return o == owner; }); | |
937 | if (prevalence > max_prevalence) { | |
938 | max_prevalence = prevalence; | |
939 | prevalent_owner = owner; | |
940 | } | |
941 | } | |
942 | ||
943 | return prevalent_owner; | |
944 | } | |
945 | ||
946 | vector< shared_ptr<Trace> > View::extract_new_traces_for_channels( | |
947 | const vector< shared_ptr<sigrok::Channel> > &channels, | |
948 | const unordered_map<shared_ptr<data::SignalBase>, shared_ptr<Signal> > | |
949 | &signal_map, | |
950 | set< shared_ptr<Trace> > &add_list) | |
951 | { | |
952 | vector< shared_ptr<Trace> > filtered_traces; | |
953 | ||
954 | for (const auto &channel : channels) { | |
955 | for (auto entry : signal_map) { | |
956 | if (entry.first->channel() == channel) { | |
957 | shared_ptr<Trace> trace = entry.second; | |
958 | const auto list_iter = add_list.find(trace); | |
959 | if (list_iter == add_list.end()) | |
960 | continue; | |
961 | ||
962 | filtered_traces.push_back(trace); | |
963 | add_list.erase(list_iter); | |
964 | } | |
965 | } | |
966 | } | |
967 | ||
968 | return filtered_traces; | |
969 | } | |
970 | ||
971 | void View::determine_time_unit() | |
972 | { | |
973 | // Check whether we know the sample rate and hence can use time as the unit | |
974 | if (time_unit_ == util::TimeUnit::Samples) { | |
975 | // Check all signals but... | |
976 | for (const shared_ptr<Signal> signal : signals_) { | |
977 | const shared_ptr<SignalData> data = signal->data(); | |
978 | ||
979 | // ...only check first segment of each | |
980 | const vector< shared_ptr<Segment> > segments = data->segments(); | |
981 | if (!segments.empty()) | |
982 | if (segments[0]->samplerate()) { | |
983 | set_time_unit(util::TimeUnit::Time); | |
984 | break; | |
985 | } | |
986 | } | |
987 | } | |
988 | } | |
989 | ||
990 | bool View::eventFilter(QObject *object, QEvent *event) | |
991 | { | |
992 | const QEvent::Type type = event->type(); | |
993 | if (type == QEvent::MouseMove) { | |
994 | ||
995 | const QMouseEvent *const mouse_event = (QMouseEvent*)event; | |
996 | if (object == viewport_) | |
997 | hover_point_ = mouse_event->pos(); | |
998 | else if (object == ruler_) | |
999 | hover_point_ = QPoint(mouse_event->x(), 0); | |
1000 | else if (object == header_) | |
1001 | hover_point_ = QPoint(0, mouse_event->y()); | |
1002 | else | |
1003 | hover_point_ = QPoint(-1, -1); | |
1004 | ||
1005 | update_hover_point(); | |
1006 | ||
1007 | } else if (type == QEvent::Leave) { | |
1008 | hover_point_ = QPoint(-1, -1); | |
1009 | update_hover_point(); | |
1010 | } else if (type == QEvent::Show) { | |
1011 | ||
1012 | // This is somewhat of a hack, unfortunately. We cannot use | |
1013 | // set_v_offset() from within restore_settings() as the view | |
1014 | // at that point is neither visible nor properly sized. | |
1015 | // This is the least intrusive workaround I could come up | |
1016 | // with: set the vertical offset (or scroll defaults) when | |
1017 | // the view is shown, which happens after all widgets were | |
1018 | // resized to their final sizes. | |
1019 | update_layout(); | |
1020 | ||
1021 | if (!settings_restored_) | |
1022 | expand_header_to_fit(); | |
1023 | ||
1024 | if (scroll_needs_defaults_) { | |
1025 | set_scroll_default(); | |
1026 | scroll_needs_defaults_ = false; | |
1027 | } | |
1028 | ||
1029 | if (saved_v_offset_) { | |
1030 | set_v_offset(saved_v_offset_); | |
1031 | saved_v_offset_ = 0; | |
1032 | } | |
1033 | } | |
1034 | ||
1035 | return QObject::eventFilter(object, event); | |
1036 | } | |
1037 | ||
1038 | void View::resizeEvent(QResizeEvent* event) | |
1039 | { | |
1040 | // Only adjust the top margin if we shrunk vertically | |
1041 | if (event->size().height() < event->oldSize().height()) | |
1042 | adjust_top_margin(); | |
1043 | ||
1044 | update_layout(); | |
1045 | } | |
1046 | ||
1047 | void View::update_hover_point() | |
1048 | { | |
1049 | const vector<shared_ptr<TraceTreeItem>> trace_tree_items( | |
1050 | list_by_type<TraceTreeItem>()); | |
1051 | for (shared_ptr<TraceTreeItem> r : trace_tree_items) | |
1052 | r->hover_point_changed(hover_point_); | |
1053 | ||
1054 | hover_point_changed(hover_point_); | |
1055 | } | |
1056 | ||
1057 | void View::row_item_appearance_changed(bool label, bool content) | |
1058 | { | |
1059 | if (label) | |
1060 | header_->update(); | |
1061 | if (content) | |
1062 | viewport_->update(); | |
1063 | } | |
1064 | ||
1065 | void View::time_item_appearance_changed(bool label, bool content) | |
1066 | { | |
1067 | if (label) { | |
1068 | ruler_->update(); | |
1069 | ||
1070 | // Make sure the header pane width is updated, too | |
1071 | update_layout(); | |
1072 | } | |
1073 | ||
1074 | if (content) | |
1075 | viewport_->update(); | |
1076 | } | |
1077 | ||
1078 | void View::extents_changed(bool horz, bool vert) | |
1079 | { | |
1080 | sticky_events_ |= | |
1081 | (horz ? TraceTreeItemHExtentsChanged : 0) | | |
1082 | (vert ? TraceTreeItemVExtentsChanged : 0); | |
1083 | ||
1084 | lazy_event_handler_.start(); | |
1085 | } | |
1086 | ||
1087 | void View::on_splitter_moved() | |
1088 | { | |
1089 | // Setting the maximum width of the header widget doesn't work as | |
1090 | // expected because the splitter would allow the user to make the | |
1091 | // pane wider than that, creating empty space as a result. | |
1092 | // To make this work, we stricly enforce the maximum width by | |
1093 | // expanding the header unless the user shrunk it on purpose. | |
1094 | // As we're then setting the width of the header pane, we set the | |
1095 | // splitter to the maximum allowed position. | |
1096 | if (!header_was_shrunk()) | |
1097 | expand_header_to_fit(); | |
1098 | } | |
1099 | ||
1100 | void View::h_scroll_value_changed(int value) | |
1101 | { | |
1102 | if (updating_scroll_) | |
1103 | return; | |
1104 | ||
1105 | // Disable sticky scrolling when user moves the horizontal scroll bar | |
1106 | // during a running acquisition | |
1107 | if (sticky_scrolling_ && (session_.get_capture_state() == Session::Running)) { | |
1108 | sticky_scrolling_ = false; | |
1109 | sticky_scrolling_changed(false); | |
1110 | } | |
1111 | ||
1112 | const int range = scrollarea_->horizontalScrollBar()->maximum(); | |
1113 | if (range < MaxScrollValue) | |
1114 | set_offset(scale_ * value); | |
1115 | else { | |
1116 | double length = 0; | |
1117 | Timestamp offset; | |
1118 | get_scroll_layout(length, offset); | |
1119 | set_offset(scale_ * length * value / MaxScrollValue); | |
1120 | } | |
1121 | ||
1122 | ruler_->update(); | |
1123 | viewport_->update(); | |
1124 | } | |
1125 | ||
1126 | void View::v_scroll_value_changed() | |
1127 | { | |
1128 | header_->update(); | |
1129 | viewport_->update(); | |
1130 | } | |
1131 | ||
1132 | void View::signals_changed() | |
1133 | { | |
1134 | using sigrok::Channel; | |
1135 | ||
1136 | vector< shared_ptr<Channel> > channels; | |
1137 | shared_ptr<sigrok::Device> sr_dev; | |
1138 | ||
1139 | // Do we need to set the vertical scrollbar to its default position later? | |
1140 | // We do if there are no traces, i.e. the scroll bar has no range set | |
1141 | bool reset_scrollbar = | |
1142 | (scrollarea_->verticalScrollBar()->minimum() == | |
1143 | scrollarea_->verticalScrollBar()->maximum()); | |
1144 | ||
1145 | if (!session_.device()) { | |
1146 | reset_scroll(); | |
1147 | signals_.clear(); | |
1148 | } else { | |
1149 | sr_dev = session_.device()->device(); | |
1150 | assert(sr_dev); | |
1151 | channels = sr_dev->channels(); | |
1152 | } | |
1153 | ||
1154 | vector< shared_ptr<TraceTreeItem> > new_top_level_items; | |
1155 | ||
1156 | // Make a list of traces that are being added, and a list of traces | |
1157 | // that are being removed | |
1158 | const vector<shared_ptr<Trace>> prev_trace_list = list_by_type<Trace>(); | |
1159 | const set<shared_ptr<Trace>> prev_traces( | |
1160 | prev_trace_list.begin(), prev_trace_list.end()); | |
1161 | ||
1162 | set< shared_ptr<Trace> > traces(signals_.begin(), signals_.end()); | |
1163 | ||
1164 | #ifdef ENABLE_DECODE | |
1165 | traces.insert(decode_traces_.begin(), decode_traces_.end()); | |
1166 | #endif | |
1167 | ||
1168 | set< shared_ptr<Trace> > add_traces; | |
1169 | set_difference(traces.begin(), traces.end(), | |
1170 | prev_traces.begin(), prev_traces.end(), | |
1171 | inserter(add_traces, add_traces.begin())); | |
1172 | ||
1173 | set< shared_ptr<Trace> > remove_traces; | |
1174 | set_difference(prev_traces.begin(), prev_traces.end(), | |
1175 | traces.begin(), traces.end(), | |
1176 | inserter(remove_traces, remove_traces.begin())); | |
1177 | ||
1178 | // Make a look-up table of sigrok Channels to pulseview Signals | |
1179 | unordered_map<shared_ptr<data::SignalBase>, shared_ptr<Signal> > | |
1180 | signal_map; | |
1181 | for (const shared_ptr<Signal> &sig : signals_) | |
1182 | signal_map[sig->base()] = sig; | |
1183 | ||
1184 | // Populate channel groups | |
1185 | if (sr_dev) | |
1186 | for (auto entry : sr_dev->channel_groups()) { | |
1187 | const shared_ptr<sigrok::ChannelGroup> &group = entry.second; | |
1188 | ||
1189 | if (group->channels().size() <= 1) | |
1190 | continue; | |
1191 | ||
1192 | // Find best trace group to add to | |
1193 | TraceTreeItemOwner *owner = find_prevalent_trace_group( | |
1194 | group, signal_map); | |
1195 | ||
1196 | // If there is no trace group, create one | |
1197 | shared_ptr<TraceGroup> new_trace_group; | |
1198 | if (!owner) { | |
1199 | new_trace_group.reset(new TraceGroup()); | |
1200 | owner = new_trace_group.get(); | |
1201 | } | |
1202 | ||
1203 | // Extract traces for the trace group, removing them from | |
1204 | // the add list | |
1205 | const vector< shared_ptr<Trace> > new_traces_in_group = | |
1206 | extract_new_traces_for_channels(group->channels(), | |
1207 | signal_map, add_traces); | |
1208 | ||
1209 | // Add the traces to the group | |
1210 | const pair<int, int> prev_v_extents = owner->v_extents(); | |
1211 | int offset = prev_v_extents.second - prev_v_extents.first; | |
1212 | for (shared_ptr<Trace> trace : new_traces_in_group) { | |
1213 | assert(trace); | |
1214 | owner->add_child_item(trace); | |
1215 | ||
1216 | const pair<int, int> extents = trace->v_extents(); | |
1217 | if (trace->enabled()) | |
1218 | offset += -extents.first; | |
1219 | trace->force_to_v_offset(offset); | |
1220 | if (trace->enabled()) | |
1221 | offset += extents.second; | |
1222 | } | |
1223 | ||
1224 | if (new_trace_group) { | |
1225 | // Assign proper vertical offsets to each channel in the group | |
1226 | new_trace_group->restack_items(); | |
1227 | ||
1228 | // If this is a new group, enqueue it in the new top level | |
1229 | // items list | |
1230 | if (!new_traces_in_group.empty()) | |
1231 | new_top_level_items.push_back(new_trace_group); | |
1232 | } | |
1233 | } | |
1234 | ||
1235 | // Enqueue the remaining logic channels in a group | |
1236 | vector< shared_ptr<Channel> > logic_channels; | |
1237 | copy_if(channels.begin(), channels.end(), back_inserter(logic_channels), | |
1238 | [](const shared_ptr<Channel>& c) { | |
1239 | return c->type() == sigrok::ChannelType::LOGIC; }); | |
1240 | ||
1241 | const vector< shared_ptr<Trace> > non_grouped_logic_signals = | |
1242 | extract_new_traces_for_channels(logic_channels, signal_map, add_traces); | |
1243 | ||
1244 | if (non_grouped_logic_signals.size() > 0) { | |
1245 | const shared_ptr<TraceGroup> non_grouped_trace_group( | |
1246 | make_shared<TraceGroup>()); | |
1247 | for (shared_ptr<Trace> trace : non_grouped_logic_signals) | |
1248 | non_grouped_trace_group->add_child_item(trace); | |
1249 | ||
1250 | non_grouped_trace_group->restack_items(); | |
1251 | new_top_level_items.push_back(non_grouped_trace_group); | |
1252 | } | |
1253 | ||
1254 | // Enqueue the remaining channels as free ungrouped traces | |
1255 | const vector< shared_ptr<Trace> > new_top_level_signals = | |
1256 | extract_new_traces_for_channels(channels, signal_map, add_traces); | |
1257 | new_top_level_items.insert(new_top_level_items.end(), | |
1258 | new_top_level_signals.begin(), new_top_level_signals.end()); | |
1259 | ||
1260 | // Enqueue any remaining traces i.e. decode traces | |
1261 | new_top_level_items.insert(new_top_level_items.end(), | |
1262 | add_traces.begin(), add_traces.end()); | |
1263 | ||
1264 | // Remove any removed traces | |
1265 | for (shared_ptr<Trace> trace : remove_traces) { | |
1266 | TraceTreeItemOwner *const owner = trace->owner(); | |
1267 | assert(owner); | |
1268 | owner->remove_child_item(trace); | |
1269 | } | |
1270 | ||
1271 | // Remove any empty trace groups | |
1272 | for (shared_ptr<TraceGroup> group : list_by_type<TraceGroup>()) | |
1273 | if (group->child_items().size() == 0) { | |
1274 | remove_child_item(group); | |
1275 | group.reset(); | |
1276 | } | |
1277 | ||
1278 | // Add and position the pending top levels items | |
1279 | int offset = v_extents().second; | |
1280 | for (auto item : new_top_level_items) { | |
1281 | add_child_item(item); | |
1282 | ||
1283 | // Position the item after the last item or at the top if there is none | |
1284 | const pair<int, int> extents = item->v_extents(); | |
1285 | ||
1286 | if (item->enabled()) | |
1287 | offset += -extents.first; | |
1288 | ||
1289 | item->force_to_v_offset(offset); | |
1290 | ||
1291 | if (item->enabled()) | |
1292 | offset += extents.second; | |
1293 | } | |
1294 | ||
1295 | ||
1296 | if (!new_top_level_items.empty()) | |
1297 | // Expand the header pane because the header should become fully | |
1298 | // visible when new signals are added | |
1299 | expand_header_to_fit(); | |
1300 | ||
1301 | update_layout(); | |
1302 | ||
1303 | header_->update(); | |
1304 | viewport_->update(); | |
1305 | ||
1306 | if (reset_scrollbar) | |
1307 | set_scroll_default(); | |
1308 | } | |
1309 | ||
1310 | void View::capture_state_updated(int state) | |
1311 | { | |
1312 | GlobalSettings settings; | |
1313 | ||
1314 | if (state == Session::Running) { | |
1315 | set_time_unit(util::TimeUnit::Samples); | |
1316 | ||
1317 | trigger_markers_.clear(); | |
1318 | ||
1319 | scale_at_acq_start_ = scale_; | |
1320 | offset_at_acq_start_ = offset_; | |
1321 | ||
1322 | // Activate "always zoom to fit" if the setting is enabled and we're | |
1323 | // the main view of this session (other trace views may be used for | |
1324 | // zooming and we don't want to mess them up) | |
1325 | bool state = settings.value(GlobalSettings::Key_View_ZoomToFitDuringAcq).toBool(); | |
1326 | if (is_main_view_ && state) { | |
1327 | always_zoom_to_fit_ = true; | |
1328 | always_zoom_to_fit_changed(always_zoom_to_fit_); | |
1329 | } | |
1330 | ||
1331 | // Enable sticky scrolling if the setting is enabled | |
1332 | sticky_scrolling_ = settings.value(GlobalSettings::Key_View_StickyScrolling).toBool(); | |
1333 | } | |
1334 | ||
1335 | if (state == Session::Stopped) { | |
1336 | // After acquisition has stopped we need to re-calculate the ticks once | |
1337 | // as it's otherwise done when the user pans or zooms, which is too late | |
1338 | calculate_tick_spacing(); | |
1339 | ||
1340 | // Reset "always zoom to fit", the acquisition has stopped | |
1341 | if (always_zoom_to_fit_) { | |
1342 | // Perform a final zoom-to-fit before disabling | |
1343 | zoom_fit(always_zoom_to_fit_); | |
1344 | always_zoom_to_fit_ = false; | |
1345 | always_zoom_to_fit_changed(always_zoom_to_fit_); | |
1346 | } | |
1347 | ||
1348 | bool zoom_to_fit_after_acq = | |
1349 | settings.value(GlobalSettings::Key_View_ZoomToFitAfterAcq).toBool(); | |
1350 | ||
1351 | // Only perform zoom-to-fit if the user hasn't altered the viewport and | |
1352 | // we didn't restore settings in the meanwhile | |
1353 | if (zoom_to_fit_after_acq && | |
1354 | !suppress_zoom_to_fit_after_acq_ && | |
1355 | (scale_ == scale_at_acq_start_) && | |
1356 | (offset_ == offset_at_acq_start_)) | |
1357 | zoom_fit(false); // We're stopped, so the GUI state doesn't matter | |
1358 | ||
1359 | suppress_zoom_to_fit_after_acq_ = false; | |
1360 | } | |
1361 | } | |
1362 | ||
1363 | void View::perform_delayed_view_update() | |
1364 | { | |
1365 | if (always_zoom_to_fit_) { | |
1366 | zoom_fit(true); | |
1367 | } else if (sticky_scrolling_) { | |
1368 | // Make right side of the view sticky | |
1369 | double length = 0; | |
1370 | Timestamp offset; | |
1371 | get_scroll_layout(length, offset); | |
1372 | ||
1373 | const QSize areaSize = viewport_->size(); | |
1374 | length = max(length - areaSize.width(), 0.0); | |
1375 | ||
1376 | set_offset(scale_ * length); | |
1377 | } | |
1378 | ||
1379 | determine_time_unit(); | |
1380 | update_scroll(); | |
1381 | ruler_->update(); | |
1382 | viewport_->update(); | |
1383 | } | |
1384 | ||
1385 | void View::process_sticky_events() | |
1386 | { | |
1387 | if (sticky_events_ & TraceTreeItemHExtentsChanged) | |
1388 | update_layout(); | |
1389 | if (sticky_events_ & TraceTreeItemVExtentsChanged) { | |
1390 | restack_all_trace_tree_items(); | |
1391 | update_scroll(); | |
1392 | } | |
1393 | ||
1394 | // Clear the sticky events | |
1395 | sticky_events_ = 0; | |
1396 | } | |
1397 | ||
1398 | } // namespace trace | |
1399 | } // namespace views | |
1400 | } // namespace pv |