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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 | segment_display_mode_(Trace::ShowLastSegmentOnly), | |
129 | segment_selectable_(false), | |
130 | scale_(1e-3), | |
131 | offset_(0), | |
132 | ruler_offset_(0), | |
133 | updating_scroll_(false), | |
134 | settings_restored_(false), | |
135 | header_was_shrunk_(false), | |
136 | sticky_scrolling_(false), // Default setting is set in MainWindow::setup_ui() | |
137 | always_zoom_to_fit_(false), | |
138 | tick_period_(0), | |
139 | tick_prefix_(pv::util::SIPrefix::yocto), | |
140 | tick_precision_(0), | |
141 | time_unit_(util::TimeUnit::Time), | |
142 | show_cursors_(false), | |
143 | cursors_(new CursorPair(*this)), | |
144 | next_flag_text_('A'), | |
145 | trigger_markers_(), | |
146 | hover_point_(-1, -1), | |
147 | scroll_needs_defaults_(true), | |
148 | saved_v_offset_(0), | |
149 | scale_at_acq_start_(0), | |
150 | offset_at_acq_start_(0), | |
151 | suppress_zoom_to_fit_after_acq_(false) | |
152 | { | |
153 | QVBoxLayout *root_layout = new QVBoxLayout(this); | |
154 | root_layout->setContentsMargins(0, 0, 0, 0); | |
155 | root_layout->addWidget(splitter_); | |
156 | ||
157 | viewport_ = new Viewport(*this); | |
158 | scrollarea_ = new CustomScrollArea(splitter_); | |
159 | scrollarea_->setViewport(viewport_); | |
160 | scrollarea_->setFrameShape(QFrame::NoFrame); | |
161 | ||
162 | ruler_ = new Ruler(*this); | |
163 | ||
164 | header_ = new Header(*this); | |
165 | header_->setMinimumWidth(10); // So that the arrow tips show at least | |
166 | ||
167 | // We put the header into a simple layout so that we can add the top margin, | |
168 | // allowing us to make it line up with the bottom of the ruler | |
169 | QWidget *header_container = new QWidget(); | |
170 | header_container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); | |
171 | QVBoxLayout *header_layout = new QVBoxLayout(header_container); | |
172 | header_layout->setContentsMargins(0, ruler_->sizeHint().height(), 0, 0); | |
173 | header_layout->addWidget(header_); | |
174 | ||
175 | // To let the ruler and scrollarea be on the same split pane, we need a layout | |
176 | QWidget *trace_container = new QWidget(); | |
177 | trace_container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); | |
178 | QVBoxLayout *trace_layout = new QVBoxLayout(trace_container); | |
179 | trace_layout->setSpacing(0); // We don't want space between the ruler and scrollarea | |
180 | trace_layout->setContentsMargins(0, 0, 0, 0); | |
181 | trace_layout->addWidget(ruler_); | |
182 | trace_layout->addWidget(scrollarea_); | |
183 | ||
184 | splitter_->addWidget(header_container); | |
185 | splitter_->addWidget(trace_container); | |
186 | splitter_->setHandleWidth(1); // Don't show a visible rubber band | |
187 | splitter_->setCollapsible(0, false); // Prevent the header from collapsing | |
188 | splitter_->setCollapsible(1, false); // Prevent the traces from collapsing | |
189 | splitter_->setStretchFactor(0, 0); // Prevent the panes from being resized | |
190 | splitter_->setStretchFactor(1, 1); // when the entire view is resized | |
191 | splitter_->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); | |
192 | ||
193 | viewport_->installEventFilter(this); | |
194 | ruler_->installEventFilter(this); | |
195 | header_->installEventFilter(this); | |
196 | ||
197 | // Set up settings and event handlers | |
198 | GlobalSettings settings; | |
199 | coloured_bg_ = settings.value(GlobalSettings::Key_View_ColouredBG).toBool(); | |
200 | ||
201 | GlobalSettings::add_change_handler(this); | |
202 | ||
203 | connect(scrollarea_->horizontalScrollBar(), SIGNAL(valueChanged(int)), | |
204 | this, SLOT(h_scroll_value_changed(int))); | |
205 | connect(scrollarea_->verticalScrollBar(), SIGNAL(valueChanged(int)), | |
206 | this, SLOT(v_scroll_value_changed())); | |
207 | ||
208 | connect(header_, SIGNAL(selection_changed()), | |
209 | ruler_, SLOT(clear_selection())); | |
210 | connect(ruler_, SIGNAL(selection_changed()), | |
211 | header_, SLOT(clear_selection())); | |
212 | ||
213 | connect(header_, SIGNAL(selection_changed()), | |
214 | this, SIGNAL(selection_changed())); | |
215 | connect(ruler_, SIGNAL(selection_changed()), | |
216 | this, SIGNAL(selection_changed())); | |
217 | ||
218 | connect(splitter_, SIGNAL(splitterMoved(int, int)), | |
219 | this, SLOT(on_splitter_moved())); | |
220 | ||
221 | connect(&lazy_event_handler_, SIGNAL(timeout()), | |
222 | this, SLOT(process_sticky_events())); | |
223 | lazy_event_handler_.setSingleShot(true); | |
224 | ||
225 | // Trigger the initial event manually. The default device has signals | |
226 | // which were created before this object came into being | |
227 | signals_changed(); | |
228 | ||
229 | // make sure the transparent widgets are on the top | |
230 | ruler_->raise(); | |
231 | header_->raise(); | |
232 | ||
233 | // Update the zoom state | |
234 | calculate_tick_spacing(); | |
235 | ||
236 | // Make sure the standard bar's segment selector is in sync | |
237 | set_segment_display_mode(segment_display_mode_); | |
238 | } | |
239 | ||
240 | View::~View() | |
241 | { | |
242 | GlobalSettings::remove_change_handler(this); | |
243 | } | |
244 | ||
245 | Session& View::session() | |
246 | { | |
247 | return session_; | |
248 | } | |
249 | ||
250 | const Session& View::session() const | |
251 | { | |
252 | return session_; | |
253 | } | |
254 | ||
255 | unordered_set< shared_ptr<Signal> > View::signals() const | |
256 | { | |
257 | return signals_; | |
258 | } | |
259 | ||
260 | void View::clear_signals() | |
261 | { | |
262 | ViewBase::clear_signalbases(); | |
263 | signals_.clear(); | |
264 | } | |
265 | ||
266 | void View::add_signal(const shared_ptr<Signal> signal) | |
267 | { | |
268 | ViewBase::add_signalbase(signal->base()); | |
269 | signals_.insert(signal); | |
270 | ||
271 | signal->set_segment_display_mode(segment_display_mode_); | |
272 | signal->set_current_segment(current_segment_); | |
273 | ||
274 | connect(signal->base().get(), SIGNAL(name_changed(const QString&)), | |
275 | this, SLOT(on_signal_name_changed())); | |
276 | } | |
277 | ||
278 | #ifdef ENABLE_DECODE | |
279 | void View::clear_decode_signals() | |
280 | { | |
281 | decode_traces_.clear(); | |
282 | } | |
283 | ||
284 | void View::add_decode_signal(shared_ptr<data::DecodeSignal> signal) | |
285 | { | |
286 | shared_ptr<DecodeTrace> d( | |
287 | new DecodeTrace(session_, signal, decode_traces_.size())); | |
288 | decode_traces_.push_back(d); | |
289 | ||
290 | d->set_segment_display_mode(segment_display_mode_); | |
291 | d->set_current_segment(current_segment_); | |
292 | ||
293 | connect(signal.get(), SIGNAL(name_changed(const QString&)), | |
294 | this, SLOT(on_signal_name_changed())); | |
295 | } | |
296 | ||
297 | void View::remove_decode_signal(shared_ptr<data::DecodeSignal> signal) | |
298 | { | |
299 | for (auto i = decode_traces_.begin(); i != decode_traces_.end(); i++) | |
300 | if ((*i)->base() == signal) { | |
301 | decode_traces_.erase(i); | |
302 | signals_changed(); | |
303 | return; | |
304 | } | |
305 | } | |
306 | #endif | |
307 | ||
308 | View* View::view() | |
309 | { | |
310 | return this; | |
311 | } | |
312 | ||
313 | const View* View::view() const | |
314 | { | |
315 | return this; | |
316 | } | |
317 | ||
318 | Viewport* View::viewport() | |
319 | { | |
320 | return viewport_; | |
321 | } | |
322 | ||
323 | const Viewport* View::viewport() const | |
324 | { | |
325 | return viewport_; | |
326 | } | |
327 | ||
328 | void View::save_settings(QSettings &settings) const | |
329 | { | |
330 | settings.setValue("scale", scale_); | |
331 | settings.setValue("v_offset", | |
332 | scrollarea_->verticalScrollBar()->sliderPosition()); | |
333 | ||
334 | settings.setValue("splitter_state", splitter_->saveState()); | |
335 | settings.setValue("segment_display_mode", segment_display_mode_); | |
336 | ||
337 | { | |
338 | stringstream ss; | |
339 | boost::archive::text_oarchive oa(ss); | |
340 | oa << boost::serialization::make_nvp("ruler_shift", ruler_shift_); | |
341 | settings.setValue("ruler_shift", QString::fromStdString(ss.str())); | |
342 | } | |
343 | { | |
344 | stringstream ss; | |
345 | boost::archive::text_oarchive oa(ss); | |
346 | oa << boost::serialization::make_nvp("offset", offset_); | |
347 | settings.setValue("offset", QString::fromStdString(ss.str())); | |
348 | } | |
349 | ||
350 | for (shared_ptr<Signal> signal : signals_) { | |
351 | settings.beginGroup(signal->base()->internal_name()); | |
352 | signal->save_settings(settings); | |
353 | settings.endGroup(); | |
354 | } | |
355 | } | |
356 | ||
357 | void View::restore_settings(QSettings &settings) | |
358 | { | |
359 | // Note: It is assumed that this function is only called once, | |
360 | // immediately after restoring a previous session. | |
361 | ||
362 | if (settings.contains("scale")) | |
363 | set_scale(settings.value("scale").toDouble()); | |
364 | ||
365 | if (settings.contains("ruler_shift")) { | |
366 | util::Timestamp shift; | |
367 | stringstream ss; | |
368 | ss << settings.value("ruler_shift").toString().toStdString(); | |
369 | ||
370 | boost::archive::text_iarchive ia(ss); | |
371 | ia >> boost::serialization::make_nvp("ruler_shift", shift); | |
372 | ||
373 | ruler_shift_ = shift; | |
374 | } | |
375 | ||
376 | if (settings.contains("offset")) { | |
377 | util::Timestamp offset; | |
378 | stringstream ss; | |
379 | ss << settings.value("offset").toString().toStdString(); | |
380 | ||
381 | boost::archive::text_iarchive ia(ss); | |
382 | ia >> boost::serialization::make_nvp("offset", offset); | |
383 | ||
384 | // This also updates ruler_offset_ | |
385 | set_offset(offset); | |
386 | } | |
387 | ||
388 | if (settings.contains("splitter_state")) | |
389 | splitter_->restoreState(settings.value("splitter_state").toByteArray()); | |
390 | ||
391 | if (settings.contains("segment_display_mode")) | |
392 | set_segment_display_mode( | |
393 | (Trace::SegmentDisplayMode)(settings.value("segment_display_mode").toInt())); | |
394 | ||
395 | for (shared_ptr<Signal> signal : signals_) { | |
396 | settings.beginGroup(signal->base()->internal_name()); | |
397 | signal->restore_settings(settings); | |
398 | settings.endGroup(); | |
399 | } | |
400 | ||
401 | if (settings.contains("v_offset")) { | |
402 | saved_v_offset_ = settings.value("v_offset").toInt(); | |
403 | set_v_offset(saved_v_offset_); | |
404 | scroll_needs_defaults_ = false; | |
405 | // Note: see eventFilter() for additional information | |
406 | } | |
407 | ||
408 | settings_restored_ = true; | |
409 | suppress_zoom_to_fit_after_acq_ = true; | |
410 | ||
411 | // Update the ruler so that it uses the new scale | |
412 | calculate_tick_spacing(); | |
413 | } | |
414 | ||
415 | vector< shared_ptr<TimeItem> > View::time_items() const | |
416 | { | |
417 | const vector<shared_ptr<Flag>> f(flags()); | |
418 | vector<shared_ptr<TimeItem>> items(f.begin(), f.end()); | |
419 | items.push_back(cursors_); | |
420 | items.push_back(cursors_->first()); | |
421 | items.push_back(cursors_->second()); | |
422 | ||
423 | for (auto trigger_marker : trigger_markers_) | |
424 | items.push_back(trigger_marker); | |
425 | ||
426 | return items; | |
427 | } | |
428 | ||
429 | double View::scale() const | |
430 | { | |
431 | return scale_; | |
432 | } | |
433 | ||
434 | void View::set_scale(double scale) | |
435 | { | |
436 | if (scale_ != scale) { | |
437 | scale_ = scale; | |
438 | scale_changed(); | |
439 | } | |
440 | } | |
441 | ||
442 | void View::set_offset(const pv::util::Timestamp& offset, bool force_update) | |
443 | { | |
444 | if ((offset_ != offset) || force_update) { | |
445 | offset_ = offset; | |
446 | ruler_offset_ = offset_ + ruler_shift_; | |
447 | offset_changed(); | |
448 | } | |
449 | } | |
450 | ||
451 | const Timestamp& View::offset() const | |
452 | { | |
453 | return offset_; | |
454 | } | |
455 | ||
456 | const Timestamp& View::ruler_offset() const | |
457 | { | |
458 | return ruler_offset_; | |
459 | } | |
460 | ||
461 | void View::set_zero_position(pv::util::Timestamp& position) | |
462 | { | |
463 | ruler_shift_ = -position; | |
464 | ||
465 | // Force an immediate update of the offsets | |
466 | set_offset(offset_, true); | |
467 | ruler_->update(); | |
468 | } | |
469 | ||
470 | void View::reset_zero_position() | |
471 | { | |
472 | ruler_shift_ = 0; | |
473 | ||
474 | // Force an immediate update of the offsets | |
475 | set_offset(offset_, true); | |
476 | ruler_->update(); | |
477 | } | |
478 | ||
479 | int View::owner_visual_v_offset() const | |
480 | { | |
481 | return -scrollarea_->verticalScrollBar()->sliderPosition(); | |
482 | } | |
483 | ||
484 | void View::set_v_offset(int offset) | |
485 | { | |
486 | scrollarea_->verticalScrollBar()->setSliderPosition(offset); | |
487 | header_->update(); | |
488 | viewport_->update(); | |
489 | } | |
490 | ||
491 | unsigned int View::depth() const | |
492 | { | |
493 | return 0; | |
494 | } | |
495 | ||
496 | uint32_t View::current_segment() const | |
497 | { | |
498 | return current_segment_; | |
499 | } | |
500 | ||
501 | pv::util::SIPrefix View::tick_prefix() const | |
502 | { | |
503 | return tick_prefix_; | |
504 | } | |
505 | ||
506 | void View::set_tick_prefix(pv::util::SIPrefix tick_prefix) | |
507 | { | |
508 | if (tick_prefix_ != tick_prefix) { | |
509 | tick_prefix_ = tick_prefix; | |
510 | tick_prefix_changed(); | |
511 | } | |
512 | } | |
513 | ||
514 | unsigned int View::tick_precision() const | |
515 | { | |
516 | return tick_precision_; | |
517 | } | |
518 | ||
519 | void View::set_tick_precision(unsigned tick_precision) | |
520 | { | |
521 | if (tick_precision_ != tick_precision) { | |
522 | tick_precision_ = tick_precision; | |
523 | tick_precision_changed(); | |
524 | } | |
525 | } | |
526 | ||
527 | const pv::util::Timestamp& View::tick_period() const | |
528 | { | |
529 | return tick_period_; | |
530 | } | |
531 | ||
532 | unsigned int View::minor_tick_count() const | |
533 | { | |
534 | return minor_tick_count_; | |
535 | } | |
536 | ||
537 | void View::set_tick_period(const pv::util::Timestamp& tick_period) | |
538 | { | |
539 | if (tick_period_ != tick_period) { | |
540 | tick_period_ = tick_period; | |
541 | tick_period_changed(); | |
542 | } | |
543 | } | |
544 | ||
545 | TimeUnit View::time_unit() const | |
546 | { | |
547 | return time_unit_; | |
548 | } | |
549 | ||
550 | void View::set_time_unit(pv::util::TimeUnit time_unit) | |
551 | { | |
552 | if (time_unit_ != time_unit) { | |
553 | time_unit_ = time_unit; | |
554 | time_unit_changed(); | |
555 | } | |
556 | } | |
557 | ||
558 | void View::set_current_segment(uint32_t segment_id) | |
559 | { | |
560 | current_segment_ = segment_id; | |
561 | ||
562 | for (shared_ptr<Signal> signal : signals_) | |
563 | signal->set_current_segment(current_segment_); | |
564 | #ifdef ENABLE_DECODE | |
565 | for (shared_ptr<DecodeTrace> dt : decode_traces_) | |
566 | dt->set_current_segment(current_segment_); | |
567 | #endif | |
568 | ||
569 | vector<util::Timestamp> triggers = session_.get_triggers(current_segment_); | |
570 | ||
571 | trigger_markers_.clear(); | |
572 | for (util::Timestamp timestamp : triggers) | |
573 | trigger_markers_.push_back(make_shared<TriggerMarker>(*this, timestamp)); | |
574 | ||
575 | // When enabled, the first trigger for this segment is used as the zero position | |
576 | GlobalSettings settings; | |
577 | bool trigger_is_zero_time = settings.value(GlobalSettings::Key_View_TriggerIsZeroTime).toBool(); | |
578 | ||
579 | if (trigger_is_zero_time && (triggers.size() > 0)) | |
580 | set_zero_position(triggers.front()); | |
581 | ||
582 | viewport_->update(); | |
583 | ||
584 | segment_changed(segment_id); | |
585 | } | |
586 | ||
587 | bool View::segment_is_selectable() const | |
588 | { | |
589 | return segment_selectable_; | |
590 | } | |
591 | ||
592 | Trace::SegmentDisplayMode View::segment_display_mode() const | |
593 | { | |
594 | return segment_display_mode_; | |
595 | } | |
596 | ||
597 | void View::set_segment_display_mode(Trace::SegmentDisplayMode mode) | |
598 | { | |
599 | trigger_markers_.clear(); | |
600 | ||
601 | segment_display_mode_ = mode; | |
602 | ||
603 | for (shared_ptr<Signal> signal : signals_) | |
604 | signal->set_segment_display_mode(mode); | |
605 | ||
606 | uint32_t last_segment = session_.get_segment_count() - 1; | |
607 | ||
608 | switch (mode) { | |
609 | case Trace::ShowLastSegmentOnly: | |
610 | if (current_segment_ != last_segment) | |
611 | set_current_segment(last_segment); | |
612 | break; | |
613 | ||
614 | case Trace::ShowLastCompleteSegmentOnly: | |
615 | // Do nothing if we only have one segment so far | |
616 | if (last_segment > 0) { | |
617 | // If the last segment isn't complete, the previous one must be | |
618 | uint32_t segment_id = | |
619 | (session_.all_segments_complete(last_segment)) ? | |
620 | last_segment : last_segment - 1; | |
621 | ||
622 | if (current_segment_ != segment_id) | |
623 | set_current_segment(segment_id); | |
624 | } | |
625 | break; | |
626 | ||
627 | case Trace::ShowSingleSegmentOnly: | |
628 | case Trace::ShowAllSegments: | |
629 | case Trace::ShowAccumulatedIntensity: | |
630 | default: | |
631 | // Current segment remains as-is | |
632 | break; | |
633 | } | |
634 | ||
635 | segment_selectable_ = true; | |
636 | ||
637 | if ((mode == Trace::ShowAllSegments) || (mode == Trace::ShowAccumulatedIntensity)) | |
638 | segment_selectable_ = false; | |
639 | ||
640 | viewport_->update(); | |
641 | ||
642 | segment_display_mode_changed((int)mode, segment_selectable_); | |
643 | } | |
644 | ||
645 | void View::zoom(double steps) | |
646 | { | |
647 | zoom(steps, viewport_->width() / 2); | |
648 | } | |
649 | ||
650 | void View::zoom(double steps, int offset) | |
651 | { | |
652 | set_zoom(scale_ * pow(3.0 / 2.0, -steps), offset); | |
653 | } | |
654 | ||
655 | void View::zoom_fit(bool gui_state) | |
656 | { | |
657 | // Act as one-shot when stopped, toggle along with the GUI otherwise | |
658 | if (session_.get_capture_state() == Session::Stopped) { | |
659 | always_zoom_to_fit_ = false; | |
660 | always_zoom_to_fit_changed(false); | |
661 | } else { | |
662 | always_zoom_to_fit_ = gui_state; | |
663 | always_zoom_to_fit_changed(gui_state); | |
664 | } | |
665 | ||
666 | const pair<Timestamp, Timestamp> extents = get_time_extents(); | |
667 | const Timestamp delta = extents.second - extents.first; | |
668 | if (delta < Timestamp("1e-12")) | |
669 | return; | |
670 | ||
671 | assert(viewport_); | |
672 | const int w = viewport_->width(); | |
673 | if (w <= 0) | |
674 | return; | |
675 | ||
676 | const Timestamp scale = max(min(delta / w, MaxScale), MinScale); | |
677 | set_scale_offset(scale.convert_to<double>(), extents.first); | |
678 | } | |
679 | ||
680 | void View::zoom_one_to_one() | |
681 | { | |
682 | using pv::data::SignalData; | |
683 | ||
684 | // Make a set of all the visible data objects | |
685 | set< shared_ptr<SignalData> > visible_data = get_visible_data(); | |
686 | if (visible_data.empty()) | |
687 | return; | |
688 | ||
689 | assert(viewport_); | |
690 | const int w = viewport_->width(); | |
691 | if (w <= 0) | |
692 | return; | |
693 | ||
694 | set_zoom(1.0 / session_.get_samplerate(), w / 2); | |
695 | } | |
696 | ||
697 | void View::set_scale_offset(double scale, const Timestamp& offset) | |
698 | { | |
699 | // Disable sticky scrolling / always zoom to fit when acquisition runs | |
700 | // and user drags the viewport | |
701 | if ((scale_ == scale) && (offset_ != offset) && | |
702 | (session_.get_capture_state() == Session::Running)) { | |
703 | ||
704 | if (sticky_scrolling_) { | |
705 | sticky_scrolling_ = false; | |
706 | sticky_scrolling_changed(false); | |
707 | } | |
708 | ||
709 | if (always_zoom_to_fit_) { | |
710 | always_zoom_to_fit_ = false; | |
711 | always_zoom_to_fit_changed(false); | |
712 | } | |
713 | } | |
714 | ||
715 | set_scale(scale); | |
716 | set_offset(offset); | |
717 | ||
718 | calculate_tick_spacing(); | |
719 | ||
720 | update_scroll(); | |
721 | ruler_->update(); | |
722 | viewport_->update(); | |
723 | } | |
724 | ||
725 | set< shared_ptr<SignalData> > View::get_visible_data() const | |
726 | { | |
727 | // Make a set of all the visible data objects | |
728 | set< shared_ptr<SignalData> > visible_data; | |
729 | for (const shared_ptr<Signal> sig : signals_) | |
730 | if (sig->enabled()) | |
731 | visible_data.insert(sig->data()); | |
732 | ||
733 | return visible_data; | |
734 | } | |
735 | ||
736 | pair<Timestamp, Timestamp> View::get_time_extents() const | |
737 | { | |
738 | boost::optional<Timestamp> left_time, right_time; | |
739 | const set< shared_ptr<SignalData> > visible_data = get_visible_data(); | |
740 | for (const shared_ptr<SignalData> d : visible_data) { | |
741 | const vector< shared_ptr<Segment> > segments = d->segments(); | |
742 | for (const shared_ptr<Segment> &s : segments) { | |
743 | double samplerate = s->samplerate(); | |
744 | samplerate = (samplerate <= 0.0) ? 1.0 : samplerate; | |
745 | ||
746 | const Timestamp start_time = s->start_time(); | |
747 | left_time = left_time ? | |
748 | min(*left_time, start_time) : | |
749 | start_time; | |
750 | right_time = right_time ? | |
751 | max(*right_time, start_time + d->max_sample_count() / samplerate) : | |
752 | start_time + d->max_sample_count() / samplerate; | |
753 | } | |
754 | } | |
755 | ||
756 | if (!left_time || !right_time) | |
757 | return make_pair(0, 0); | |
758 | ||
759 | assert(*left_time < *right_time); | |
760 | return make_pair(*left_time, *right_time); | |
761 | } | |
762 | ||
763 | void View::enable_show_sampling_points(bool state) | |
764 | { | |
765 | (void)state; | |
766 | ||
767 | viewport_->update(); | |
768 | } | |
769 | ||
770 | void View::enable_show_analog_minor_grid(bool state) | |
771 | { | |
772 | (void)state; | |
773 | ||
774 | viewport_->update(); | |
775 | } | |
776 | ||
777 | void View::enable_coloured_bg(bool state) | |
778 | { | |
779 | coloured_bg_ = state; | |
780 | viewport_->update(); | |
781 | } | |
782 | ||
783 | bool View::coloured_bg() const | |
784 | { | |
785 | return coloured_bg_; | |
786 | } | |
787 | ||
788 | bool View::cursors_shown() const | |
789 | { | |
790 | return show_cursors_; | |
791 | } | |
792 | ||
793 | void View::show_cursors(bool show) | |
794 | { | |
795 | show_cursors_ = show; | |
796 | ruler_->update(); | |
797 | viewport_->update(); | |
798 | } | |
799 | ||
800 | void View::centre_cursors() | |
801 | { | |
802 | const double time_width = scale_ * viewport_->width(); | |
803 | cursors_->first()->set_time(offset_ + time_width * 0.4); | |
804 | cursors_->second()->set_time(offset_ + time_width * 0.6); | |
805 | ruler_->update(); | |
806 | viewport_->update(); | |
807 | } | |
808 | ||
809 | shared_ptr<CursorPair> View::cursors() const | |
810 | { | |
811 | return cursors_; | |
812 | } | |
813 | ||
814 | void View::add_flag(const Timestamp& time) | |
815 | { | |
816 | flags_.push_back(make_shared<Flag>(*this, time, | |
817 | QString("%1").arg(next_flag_text_))); | |
818 | ||
819 | next_flag_text_ = (next_flag_text_ >= 'Z') ? 'A' : | |
820 | (next_flag_text_ + 1); | |
821 | ||
822 | time_item_appearance_changed(true, true); | |
823 | } | |
824 | ||
825 | void View::remove_flag(shared_ptr<Flag> flag) | |
826 | { | |
827 | flags_.remove(flag); | |
828 | time_item_appearance_changed(true, true); | |
829 | } | |
830 | ||
831 | vector< shared_ptr<Flag> > View::flags() const | |
832 | { | |
833 | vector< shared_ptr<Flag> > flags(flags_.begin(), flags_.end()); | |
834 | stable_sort(flags.begin(), flags.end(), | |
835 | [](const shared_ptr<Flag> &a, const shared_ptr<Flag> &b) { | |
836 | return a->time() < b->time(); | |
837 | }); | |
838 | ||
839 | return flags; | |
840 | } | |
841 | ||
842 | const QPoint& View::hover_point() const | |
843 | { | |
844 | return hover_point_; | |
845 | } | |
846 | ||
847 | void View::restack_all_trace_tree_items() | |
848 | { | |
849 | // Make a list of owners that is sorted from deepest first | |
850 | const vector<shared_ptr<TraceTreeItem>> items( | |
851 | list_by_type<TraceTreeItem>()); | |
852 | set< TraceTreeItemOwner* > owners; | |
853 | for (const auto &r : items) | |
854 | owners.insert(r->owner()); | |
855 | vector< TraceTreeItemOwner* > sorted_owners(owners.begin(), owners.end()); | |
856 | sort(sorted_owners.begin(), sorted_owners.end(), | |
857 | [](const TraceTreeItemOwner* a, const TraceTreeItemOwner *b) { | |
858 | return a->depth() > b->depth(); }); | |
859 | ||
860 | // Restack the items recursively | |
861 | for (auto &o : sorted_owners) | |
862 | o->restack_items(); | |
863 | ||
864 | // Animate the items to their destination | |
865 | for (const auto &i : items) | |
866 | i->animate_to_layout_v_offset(); | |
867 | } | |
868 | ||
869 | void View::on_setting_changed(const QString &key, const QVariant &value) | |
870 | { | |
871 | if (key == GlobalSettings::Key_View_TriggerIsZeroTime) | |
872 | on_settingViewTriggerIsZeroTime_changed(value); | |
873 | } | |
874 | ||
875 | void View::trigger_event(int segment_id, util::Timestamp location) | |
876 | { | |
877 | // TODO This doesn't work if we're showing multiple segments at once | |
878 | if ((uint32_t)segment_id != current_segment_) | |
879 | return; | |
880 | ||
881 | // Set zero location if the Key_View_TriggerIsZeroTime setting is set and | |
882 | // if this is the first trigger for this segment. | |
883 | GlobalSettings settings; | |
884 | bool trigger_is_zero_time = settings.value(GlobalSettings::Key_View_TriggerIsZeroTime).toBool(); | |
885 | ||
886 | size_t trigger_count = session_.get_triggers(current_segment_).size(); | |
887 | ||
888 | if (trigger_is_zero_time && trigger_count == 1) | |
889 | set_zero_position(location); | |
890 | ||
891 | trigger_markers_.push_back(make_shared<TriggerMarker>(*this, location)); | |
892 | } | |
893 | ||
894 | void View::get_scroll_layout(double &length, Timestamp &offset) const | |
895 | { | |
896 | const pair<Timestamp, Timestamp> extents = get_time_extents(); | |
897 | length = ((extents.second - extents.first) / scale_).convert_to<double>(); | |
898 | offset = offset_ / scale_; | |
899 | } | |
900 | ||
901 | void View::set_zoom(double scale, int offset) | |
902 | { | |
903 | // Reset the "always zoom to fit" feature as the user changed the zoom | |
904 | always_zoom_to_fit_ = false; | |
905 | always_zoom_to_fit_changed(false); | |
906 | ||
907 | const Timestamp cursor_offset = offset_ + scale_ * offset; | |
908 | const Timestamp new_scale = max(min(Timestamp(scale), MaxScale), MinScale); | |
909 | const Timestamp new_offset = cursor_offset - new_scale * offset; | |
910 | set_scale_offset(new_scale.convert_to<double>(), new_offset); | |
911 | } | |
912 | ||
913 | void View::calculate_tick_spacing() | |
914 | { | |
915 | const double SpacingIncrement = 10.0f; | |
916 | const double MinValueSpacing = 40.0f; | |
917 | ||
918 | // Figure out the highest numeric value visible on a label | |
919 | const QSize areaSize = viewport_->size(); | |
920 | const Timestamp max_time = max(fabs(offset_), | |
921 | fabs(offset_ + scale_ * areaSize.width())); | |
922 | ||
923 | double min_width = SpacingIncrement; | |
924 | double label_width, tick_period_width; | |
925 | ||
926 | QFontMetrics m(QApplication::font()); | |
927 | ||
928 | // Copies of the member variables with the same name, used in the calculation | |
929 | // and written back afterwards, so that we don't emit signals all the time | |
930 | // during the calculation. | |
931 | pv::util::Timestamp tick_period = tick_period_; | |
932 | pv::util::SIPrefix tick_prefix = tick_prefix_; | |
933 | unsigned tick_precision = tick_precision_; | |
934 | ||
935 | do { | |
936 | const double min_period = scale_ * min_width; | |
937 | ||
938 | const int order = (int)floorf(log10f(min_period)); | |
939 | const pv::util::Timestamp order_decimal = | |
940 | pow(pv::util::Timestamp(10), order); | |
941 | ||
942 | // Allow for a margin of error so that a scale unit of 1 can be used. | |
943 | // Otherwise, for a SU of 1 the tick period will almost always be below | |
944 | // the min_period by a small amount - and thus skipped in favor of 2. | |
945 | // Note: margin assumes that SU[0] and SU[1] contain the smallest values | |
946 | double tp_margin = (ScaleUnits[0] + ScaleUnits[1]) / 2.0; | |
947 | double tp_with_margin; | |
948 | unsigned int unit = 0; | |
949 | ||
950 | do { | |
951 | tp_with_margin = order_decimal.convert_to<double>() * | |
952 | (ScaleUnits[unit++] + tp_margin); | |
953 | } while (tp_with_margin < min_period && unit < countof(ScaleUnits)); | |
954 | ||
955 | minor_tick_count_ = (unit == 2) ? (4) : (5); | |
956 | tick_period = order_decimal * ScaleUnits[unit - 1]; | |
957 | tick_prefix = static_cast<pv::util::SIPrefix>( | |
958 | (order - pv::util::exponent(pv::util::SIPrefix::yocto)) / 3); | |
959 | ||
960 | // Precision is the number of fractional digits required, not | |
961 | // taking the prefix into account (and it must never be negative) | |
962 | tick_precision = max(ceil(log10(1 / tick_period)).convert_to<int>(), 0); | |
963 | ||
964 | tick_period_width = (tick_period / scale_).convert_to<double>(); | |
965 | ||
966 | const QString label_text = Ruler::format_time_with_distance( | |
967 | tick_period, max_time, tick_prefix, time_unit_, tick_precision); | |
968 | ||
969 | label_width = m.boundingRect(0, 0, INT_MAX, INT_MAX, | |
970 | Qt::AlignLeft | Qt::AlignTop, label_text).width() + | |
971 | MinValueSpacing; | |
972 | ||
973 | min_width += SpacingIncrement; | |
974 | } while (tick_period_width < label_width); | |
975 | ||
976 | set_tick_period(tick_period); | |
977 | set_tick_prefix(tick_prefix); | |
978 | set_tick_precision(tick_precision); | |
979 | } | |
980 | ||
981 | void View::adjust_top_margin() | |
982 | { | |
983 | assert(viewport_); | |
984 | ||
985 | const QSize areaSize = viewport_->size(); | |
986 | ||
987 | const pair<int, int> extents = v_extents(); | |
988 | const int top_margin = owner_visual_v_offset() + extents.first; | |
989 | const int trace_bottom = owner_visual_v_offset() + extents.first + extents.second; | |
990 | ||
991 | // Do we have empty space at the top while the last trace goes out of screen? | |
992 | if ((top_margin > 0) && (trace_bottom > areaSize.height())) { | |
993 | const int trace_height = extents.second - extents.first; | |
994 | ||
995 | // Center everything vertically if there is enough space | |
996 | if (areaSize.height() >= trace_height) | |
997 | set_v_offset(extents.first - | |
998 | ((areaSize.height() - trace_height) / 2)); | |
999 | else | |
1000 | // Remove the top margin to make as many traces fit on screen as possible | |
1001 | set_v_offset(extents.first); | |
1002 | } | |
1003 | } | |
1004 | ||
1005 | void View::update_scroll() | |
1006 | { | |
1007 | assert(viewport_); | |
1008 | QScrollBar *hscrollbar = scrollarea_->horizontalScrollBar(); | |
1009 | QScrollBar *vscrollbar = scrollarea_->verticalScrollBar(); | |
1010 | ||
1011 | const QSize areaSize = viewport_->size(); | |
1012 | ||
1013 | // Set the horizontal scroll bar | |
1014 | double length = 0; | |
1015 | Timestamp offset; | |
1016 | get_scroll_layout(length, offset); | |
1017 | length = max(length - areaSize.width(), 0.0); | |
1018 | ||
1019 | int major_tick_distance = (tick_period_ / scale_).convert_to<int>(); | |
1020 | ||
1021 | hscrollbar->setPageStep(areaSize.width() / 2); | |
1022 | hscrollbar->setSingleStep(major_tick_distance); | |
1023 | ||
1024 | updating_scroll_ = true; | |
1025 | ||
1026 | if (length < MaxScrollValue) { | |
1027 | hscrollbar->setRange(0, length); | |
1028 | hscrollbar->setSliderPosition(offset.convert_to<double>()); | |
1029 | } else { | |
1030 | hscrollbar->setRange(0, MaxScrollValue); | |
1031 | hscrollbar->setSliderPosition( | |
1032 | (offset_ * MaxScrollValue / (scale_ * length)).convert_to<double>()); | |
1033 | } | |
1034 | ||
1035 | updating_scroll_ = false; | |
1036 | ||
1037 | // Set the vertical scrollbar | |
1038 | vscrollbar->setPageStep(areaSize.height()); | |
1039 | vscrollbar->setSingleStep(areaSize.height() / 8); | |
1040 | ||
1041 | const pair<int, int> extents = v_extents(); | |
1042 | ||
1043 | // Don't change the scrollbar range if there are no traces | |
1044 | if (extents.first != extents.second) | |
1045 | vscrollbar->setRange(extents.first - areaSize.height(), | |
1046 | extents.second); | |
1047 | ||
1048 | if (scroll_needs_defaults_) | |
1049 | set_scroll_default(); | |
1050 | } | |
1051 | ||
1052 | void View::reset_scroll() | |
1053 | { | |
1054 | scrollarea_->verticalScrollBar()->setRange(0, 0); | |
1055 | } | |
1056 | ||
1057 | void View::set_scroll_default() | |
1058 | { | |
1059 | assert(viewport_); | |
1060 | ||
1061 | const QSize areaSize = viewport_->size(); | |
1062 | ||
1063 | const pair<int, int> extents = v_extents(); | |
1064 | const int trace_height = extents.second - extents.first; | |
1065 | ||
1066 | // Do all traces fit in the view? | |
1067 | if (areaSize.height() >= trace_height) | |
1068 | // Center all traces vertically | |
1069 | set_v_offset(extents.first - | |
1070 | ((areaSize.height() - trace_height) / 2)); | |
1071 | else | |
1072 | // Put the first trace at the top, letting the bottom ones overflow | |
1073 | set_v_offset(extents.first); | |
1074 | } | |
1075 | ||
1076 | void View::determine_if_header_was_shrunk() | |
1077 | { | |
1078 | const int header_pane_width = splitter_->sizes().front(); | |
1079 | const int header_width = header_->extended_size_hint().width(); | |
1080 | ||
1081 | // Allow for a slight margin of error so that we also accept | |
1082 | // slight differences when e.g. a label name change increased | |
1083 | // the overall width | |
1084 | header_was_shrunk_ = (header_pane_width < (header_width - 10)); | |
1085 | } | |
1086 | ||
1087 | void View::resize_header_to_fit() | |
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 | ||
1097 | int splitter_area_width = 0; | |
1098 | for (int w : splitter_->sizes()) | |
1099 | splitter_area_width += w; | |
1100 | ||
1101 | // Make sure the header has enough horizontal space to show all labels fully | |
1102 | QList<int> pane_sizes; | |
1103 | pane_sizes.push_back(header_->extended_size_hint().width()); | |
1104 | pane_sizes.push_back(splitter_area_width - header_->extended_size_hint().width()); | |
1105 | splitter_->setSizes(pane_sizes); | |
1106 | } | |
1107 | ||
1108 | void View::update_layout() | |
1109 | { | |
1110 | update_scroll(); | |
1111 | } | |
1112 | ||
1113 | TraceTreeItemOwner* View::find_prevalent_trace_group( | |
1114 | const shared_ptr<sigrok::ChannelGroup> &group, | |
1115 | const unordered_map<shared_ptr<data::SignalBase>, shared_ptr<Signal> > | |
1116 | &signal_map) | |
1117 | { | |
1118 | assert(group); | |
1119 | ||
1120 | unordered_set<TraceTreeItemOwner*> owners; | |
1121 | vector<TraceTreeItemOwner*> owner_list; | |
1122 | ||
1123 | // Make a set and a list of all the owners | |
1124 | for (const auto &channel : group->channels()) { | |
1125 | for (auto entry : signal_map) { | |
1126 | if (entry.first->channel() == channel) { | |
1127 | TraceTreeItemOwner *const o = (entry.second)->owner(); | |
1128 | owner_list.push_back(o); | |
1129 | owners.insert(o); | |
1130 | } | |
1131 | } | |
1132 | } | |
1133 | ||
1134 | // Iterate through the list of owners, and find the most prevalent | |
1135 | size_t max_prevalence = 0; | |
1136 | TraceTreeItemOwner *prevalent_owner = nullptr; | |
1137 | for (TraceTreeItemOwner *owner : owners) { | |
1138 | const size_t prevalence = count_if( | |
1139 | owner_list.begin(), owner_list.end(), | |
1140 | [&](TraceTreeItemOwner *o) { return o == owner; }); | |
1141 | if (prevalence > max_prevalence) { | |
1142 | max_prevalence = prevalence; | |
1143 | prevalent_owner = owner; | |
1144 | } | |
1145 | } | |
1146 | ||
1147 | return prevalent_owner; | |
1148 | } | |
1149 | ||
1150 | vector< shared_ptr<Trace> > View::extract_new_traces_for_channels( | |
1151 | const vector< shared_ptr<sigrok::Channel> > &channels, | |
1152 | const unordered_map<shared_ptr<data::SignalBase>, shared_ptr<Signal> > | |
1153 | &signal_map, | |
1154 | set< shared_ptr<Trace> > &add_list) | |
1155 | { | |
1156 | vector< shared_ptr<Trace> > filtered_traces; | |
1157 | ||
1158 | for (const auto &channel : channels) { | |
1159 | for (auto entry : signal_map) { | |
1160 | if (entry.first->channel() == channel) { | |
1161 | shared_ptr<Trace> trace = entry.second; | |
1162 | const auto list_iter = add_list.find(trace); | |
1163 | if (list_iter == add_list.end()) | |
1164 | continue; | |
1165 | ||
1166 | filtered_traces.push_back(trace); | |
1167 | add_list.erase(list_iter); | |
1168 | } | |
1169 | } | |
1170 | } | |
1171 | ||
1172 | return filtered_traces; | |
1173 | } | |
1174 | ||
1175 | void View::determine_time_unit() | |
1176 | { | |
1177 | // Check whether we know the sample rate and hence can use time as the unit | |
1178 | if (time_unit_ == util::TimeUnit::Samples) { | |
1179 | // Check all signals but... | |
1180 | for (const shared_ptr<Signal> signal : signals_) { | |
1181 | const shared_ptr<SignalData> data = signal->data(); | |
1182 | ||
1183 | // ...only check first segment of each | |
1184 | const vector< shared_ptr<Segment> > segments = data->segments(); | |
1185 | if (!segments.empty()) | |
1186 | if (segments[0]->samplerate()) { | |
1187 | set_time_unit(util::TimeUnit::Time); | |
1188 | break; | |
1189 | } | |
1190 | } | |
1191 | } | |
1192 | } | |
1193 | ||
1194 | bool View::eventFilter(QObject *object, QEvent *event) | |
1195 | { | |
1196 | const QEvent::Type type = event->type(); | |
1197 | if (type == QEvent::MouseMove) { | |
1198 | ||
1199 | const QMouseEvent *const mouse_event = (QMouseEvent*)event; | |
1200 | if (object == viewport_) | |
1201 | hover_point_ = mouse_event->pos(); | |
1202 | else if (object == ruler_) | |
1203 | hover_point_ = QPoint(mouse_event->x(), 0); | |
1204 | else if (object == header_) | |
1205 | hover_point_ = QPoint(0, mouse_event->y()); | |
1206 | else | |
1207 | hover_point_ = QPoint(-1, -1); | |
1208 | ||
1209 | update_hover_point(); | |
1210 | ||
1211 | } else if (type == QEvent::Leave) { | |
1212 | hover_point_ = QPoint(-1, -1); | |
1213 | update_hover_point(); | |
1214 | } else if (type == QEvent::Show) { | |
1215 | ||
1216 | // This is somewhat of a hack, unfortunately. We cannot use | |
1217 | // set_v_offset() from within restore_settings() as the view | |
1218 | // at that point is neither visible nor properly sized. | |
1219 | // This is the least intrusive workaround I could come up | |
1220 | // with: set the vertical offset (or scroll defaults) when | |
1221 | // the view is shown, which happens after all widgets were | |
1222 | // resized to their final sizes. | |
1223 | update_layout(); | |
1224 | ||
1225 | if (settings_restored_) | |
1226 | determine_if_header_was_shrunk(); | |
1227 | else | |
1228 | resize_header_to_fit(); | |
1229 | ||
1230 | if (scroll_needs_defaults_) { | |
1231 | set_scroll_default(); | |
1232 | scroll_needs_defaults_ = false; | |
1233 | } | |
1234 | ||
1235 | if (saved_v_offset_) { | |
1236 | set_v_offset(saved_v_offset_); | |
1237 | saved_v_offset_ = 0; | |
1238 | } | |
1239 | } | |
1240 | ||
1241 | return QObject::eventFilter(object, event); | |
1242 | } | |
1243 | ||
1244 | void View::resizeEvent(QResizeEvent* event) | |
1245 | { | |
1246 | // Only adjust the top margin if we shrunk vertically | |
1247 | if (event->size().height() < event->oldSize().height()) | |
1248 | adjust_top_margin(); | |
1249 | ||
1250 | update_layout(); | |
1251 | } | |
1252 | ||
1253 | void View::update_hover_point() | |
1254 | { | |
1255 | const vector<shared_ptr<TraceTreeItem>> trace_tree_items( | |
1256 | list_by_type<TraceTreeItem>()); | |
1257 | for (shared_ptr<TraceTreeItem> r : trace_tree_items) | |
1258 | r->hover_point_changed(hover_point_); | |
1259 | ||
1260 | hover_point_changed(hover_point_); | |
1261 | } | |
1262 | ||
1263 | void View::row_item_appearance_changed(bool label, bool content) | |
1264 | { | |
1265 | if (label) | |
1266 | header_->update(); | |
1267 | if (content) | |
1268 | viewport_->update(); | |
1269 | } | |
1270 | ||
1271 | void View::time_item_appearance_changed(bool label, bool content) | |
1272 | { | |
1273 | if (label) { | |
1274 | ruler_->update(); | |
1275 | ||
1276 | // Make sure the header pane width is updated, too | |
1277 | update_layout(); | |
1278 | } | |
1279 | ||
1280 | if (content) | |
1281 | viewport_->update(); | |
1282 | } | |
1283 | ||
1284 | void View::extents_changed(bool horz, bool vert) | |
1285 | { | |
1286 | sticky_events_ |= | |
1287 | (horz ? TraceTreeItemHExtentsChanged : 0) | | |
1288 | (vert ? TraceTreeItemVExtentsChanged : 0); | |
1289 | ||
1290 | lazy_event_handler_.start(); | |
1291 | } | |
1292 | ||
1293 | void View::on_signal_name_changed() | |
1294 | { | |
1295 | if (!header_was_shrunk_) | |
1296 | resize_header_to_fit(); | |
1297 | } | |
1298 | ||
1299 | void View::on_splitter_moved() | |
1300 | { | |
1301 | // The header can only shrink when the splitter is moved manually | |
1302 | determine_if_header_was_shrunk(); | |
1303 | ||
1304 | if (!header_was_shrunk_) | |
1305 | resize_header_to_fit(); | |
1306 | } | |
1307 | ||
1308 | void View::h_scroll_value_changed(int value) | |
1309 | { | |
1310 | if (updating_scroll_) | |
1311 | return; | |
1312 | ||
1313 | // Disable sticky scrolling when user moves the horizontal scroll bar | |
1314 | // during a running acquisition | |
1315 | if (sticky_scrolling_ && (session_.get_capture_state() == Session::Running)) { | |
1316 | sticky_scrolling_ = false; | |
1317 | sticky_scrolling_changed(false); | |
1318 | } | |
1319 | ||
1320 | const int range = scrollarea_->horizontalScrollBar()->maximum(); | |
1321 | if (range < MaxScrollValue) | |
1322 | set_offset(scale_ * value); | |
1323 | else { | |
1324 | double length = 0; | |
1325 | Timestamp offset; | |
1326 | get_scroll_layout(length, offset); | |
1327 | set_offset(scale_ * length * value / MaxScrollValue); | |
1328 | } | |
1329 | ||
1330 | ruler_->update(); | |
1331 | viewport_->update(); | |
1332 | } | |
1333 | ||
1334 | void View::v_scroll_value_changed() | |
1335 | { | |
1336 | header_->update(); | |
1337 | viewport_->update(); | |
1338 | } | |
1339 | ||
1340 | void View::signals_changed() | |
1341 | { | |
1342 | using sigrok::Channel; | |
1343 | ||
1344 | vector< shared_ptr<Channel> > channels; | |
1345 | shared_ptr<sigrok::Device> sr_dev; | |
1346 | bool signals_added_or_removed = false; | |
1347 | ||
1348 | // Do we need to set the vertical scrollbar to its default position later? | |
1349 | // We do if there are no traces, i.e. the scroll bar has no range set | |
1350 | bool reset_scrollbar = | |
1351 | (scrollarea_->verticalScrollBar()->minimum() == | |
1352 | scrollarea_->verticalScrollBar()->maximum()); | |
1353 | ||
1354 | if (!session_.device()) { | |
1355 | reset_scroll(); | |
1356 | signals_.clear(); | |
1357 | } else { | |
1358 | sr_dev = session_.device()->device(); | |
1359 | assert(sr_dev); | |
1360 | channels = sr_dev->channels(); | |
1361 | } | |
1362 | ||
1363 | vector< shared_ptr<TraceTreeItem> > new_top_level_items; | |
1364 | ||
1365 | // Make a list of traces that are being added, and a list of traces | |
1366 | // that are being removed | |
1367 | const vector<shared_ptr<Trace>> prev_trace_list = list_by_type<Trace>(); | |
1368 | const set<shared_ptr<Trace>> prev_traces( | |
1369 | prev_trace_list.begin(), prev_trace_list.end()); | |
1370 | ||
1371 | set< shared_ptr<Trace> > traces(signals_.begin(), signals_.end()); | |
1372 | ||
1373 | #ifdef ENABLE_DECODE | |
1374 | traces.insert(decode_traces_.begin(), decode_traces_.end()); | |
1375 | #endif | |
1376 | ||
1377 | set< shared_ptr<Trace> > add_traces; | |
1378 | set_difference(traces.begin(), traces.end(), | |
1379 | prev_traces.begin(), prev_traces.end(), | |
1380 | inserter(add_traces, add_traces.begin())); | |
1381 | ||
1382 | set< shared_ptr<Trace> > remove_traces; | |
1383 | set_difference(prev_traces.begin(), prev_traces.end(), | |
1384 | traces.begin(), traces.end(), | |
1385 | inserter(remove_traces, remove_traces.begin())); | |
1386 | ||
1387 | // Make a look-up table of sigrok Channels to pulseview Signals | |
1388 | unordered_map<shared_ptr<data::SignalBase>, shared_ptr<Signal> > | |
1389 | signal_map; | |
1390 | for (const shared_ptr<Signal> &sig : signals_) | |
1391 | signal_map[sig->base()] = sig; | |
1392 | ||
1393 | // Populate channel groups | |
1394 | if (sr_dev) | |
1395 | for (auto entry : sr_dev->channel_groups()) { | |
1396 | const shared_ptr<sigrok::ChannelGroup> &group = entry.second; | |
1397 | ||
1398 | if (group->channels().size() <= 1) | |
1399 | continue; | |
1400 | ||
1401 | // Find best trace group to add to | |
1402 | TraceTreeItemOwner *owner = find_prevalent_trace_group( | |
1403 | group, signal_map); | |
1404 | ||
1405 | // If there is no trace group, create one | |
1406 | shared_ptr<TraceGroup> new_trace_group; | |
1407 | if (!owner) { | |
1408 | new_trace_group.reset(new TraceGroup()); | |
1409 | owner = new_trace_group.get(); | |
1410 | } | |
1411 | ||
1412 | // Extract traces for the trace group, removing them from | |
1413 | // the add list | |
1414 | const vector< shared_ptr<Trace> > new_traces_in_group = | |
1415 | extract_new_traces_for_channels(group->channels(), | |
1416 | signal_map, add_traces); | |
1417 | ||
1418 | // Add the traces to the group | |
1419 | const pair<int, int> prev_v_extents = owner->v_extents(); | |
1420 | int offset = prev_v_extents.second - prev_v_extents.first; | |
1421 | for (shared_ptr<Trace> trace : new_traces_in_group) { | |
1422 | assert(trace); | |
1423 | owner->add_child_item(trace); | |
1424 | ||
1425 | const pair<int, int> extents = trace->v_extents(); | |
1426 | if (trace->enabled()) | |
1427 | offset += -extents.first; | |
1428 | trace->force_to_v_offset(offset); | |
1429 | if (trace->enabled()) | |
1430 | offset += extents.second; | |
1431 | } | |
1432 | ||
1433 | if (new_trace_group) { | |
1434 | // Assign proper vertical offsets to each channel in the group | |
1435 | new_trace_group->restack_items(); | |
1436 | ||
1437 | // If this is a new group, enqueue it in the new top level | |
1438 | // items list | |
1439 | if (!new_traces_in_group.empty()) | |
1440 | new_top_level_items.push_back(new_trace_group); | |
1441 | } | |
1442 | } | |
1443 | ||
1444 | // Enqueue the remaining logic channels in a group | |
1445 | vector< shared_ptr<Channel> > logic_channels; | |
1446 | copy_if(channels.begin(), channels.end(), back_inserter(logic_channels), | |
1447 | [](const shared_ptr<Channel>& c) { | |
1448 | return c->type() == sigrok::ChannelType::LOGIC; }); | |
1449 | ||
1450 | const vector< shared_ptr<Trace> > non_grouped_logic_signals = | |
1451 | extract_new_traces_for_channels(logic_channels, signal_map, add_traces); | |
1452 | ||
1453 | if (non_grouped_logic_signals.size() > 0) { | |
1454 | const shared_ptr<TraceGroup> non_grouped_trace_group( | |
1455 | make_shared<TraceGroup>()); | |
1456 | for (shared_ptr<Trace> trace : non_grouped_logic_signals) | |
1457 | non_grouped_trace_group->add_child_item(trace); | |
1458 | ||
1459 | non_grouped_trace_group->restack_items(); | |
1460 | new_top_level_items.push_back(non_grouped_trace_group); | |
1461 | } | |
1462 | ||
1463 | // Enqueue the remaining channels as free ungrouped traces | |
1464 | const vector< shared_ptr<Trace> > new_top_level_signals = | |
1465 | extract_new_traces_for_channels(channels, signal_map, add_traces); | |
1466 | new_top_level_items.insert(new_top_level_items.end(), | |
1467 | new_top_level_signals.begin(), new_top_level_signals.end()); | |
1468 | ||
1469 | // Enqueue any remaining traces i.e. decode traces | |
1470 | new_top_level_items.insert(new_top_level_items.end(), | |
1471 | add_traces.begin(), add_traces.end()); | |
1472 | ||
1473 | // Remove any removed traces | |
1474 | for (shared_ptr<Trace> trace : remove_traces) { | |
1475 | TraceTreeItemOwner *const owner = trace->owner(); | |
1476 | assert(owner); | |
1477 | owner->remove_child_item(trace); | |
1478 | signals_added_or_removed = true; | |
1479 | } | |
1480 | ||
1481 | // Remove any empty trace groups | |
1482 | for (shared_ptr<TraceGroup> group : list_by_type<TraceGroup>()) | |
1483 | if (group->child_items().size() == 0) { | |
1484 | remove_child_item(group); | |
1485 | group.reset(); | |
1486 | } | |
1487 | ||
1488 | // Add and position the pending top levels items | |
1489 | int offset = v_extents().second; | |
1490 | for (auto item : new_top_level_items) { | |
1491 | add_child_item(item); | |
1492 | ||
1493 | // Position the item after the last item or at the top if there is none | |
1494 | const pair<int, int> extents = item->v_extents(); | |
1495 | ||
1496 | if (item->enabled()) | |
1497 | offset += -extents.first; | |
1498 | ||
1499 | item->force_to_v_offset(offset); | |
1500 | ||
1501 | if (item->enabled()) | |
1502 | offset += extents.second; | |
1503 | signals_added_or_removed = true; | |
1504 | } | |
1505 | ||
1506 | ||
1507 | if (signals_added_or_removed && !header_was_shrunk_) | |
1508 | resize_header_to_fit(); | |
1509 | ||
1510 | update_layout(); | |
1511 | ||
1512 | header_->update(); | |
1513 | viewport_->update(); | |
1514 | ||
1515 | if (reset_scrollbar) | |
1516 | set_scroll_default(); | |
1517 | } | |
1518 | ||
1519 | void View::capture_state_updated(int state) | |
1520 | { | |
1521 | GlobalSettings settings; | |
1522 | ||
1523 | if (state == Session::Running) { | |
1524 | set_time_unit(util::TimeUnit::Samples); | |
1525 | ||
1526 | trigger_markers_.clear(); | |
1527 | ||
1528 | scale_at_acq_start_ = scale_; | |
1529 | offset_at_acq_start_ = offset_; | |
1530 | ||
1531 | // Activate "always zoom to fit" if the setting is enabled and we're | |
1532 | // the main view of this session (other trace views may be used for | |
1533 | // zooming and we don't want to mess them up) | |
1534 | bool state = settings.value(GlobalSettings::Key_View_ZoomToFitDuringAcq).toBool(); | |
1535 | if (is_main_view_ && state) { | |
1536 | always_zoom_to_fit_ = true; | |
1537 | always_zoom_to_fit_changed(always_zoom_to_fit_); | |
1538 | } | |
1539 | ||
1540 | // Enable sticky scrolling if the setting is enabled | |
1541 | sticky_scrolling_ = settings.value(GlobalSettings::Key_View_StickyScrolling).toBool(); | |
1542 | ||
1543 | // Reset all traces to segment 0 | |
1544 | current_segment_ = 0; | |
1545 | set_current_segment(current_segment_); | |
1546 | } | |
1547 | ||
1548 | if (state == Session::Stopped) { | |
1549 | // After acquisition has stopped we need to re-calculate the ticks once | |
1550 | // as it's otherwise done when the user pans or zooms, which is too late | |
1551 | calculate_tick_spacing(); | |
1552 | ||
1553 | // Reset "always zoom to fit", the acquisition has stopped | |
1554 | if (always_zoom_to_fit_) { | |
1555 | // Perform a final zoom-to-fit before disabling | |
1556 | zoom_fit(always_zoom_to_fit_); | |
1557 | always_zoom_to_fit_ = false; | |
1558 | always_zoom_to_fit_changed(always_zoom_to_fit_); | |
1559 | } | |
1560 | ||
1561 | bool zoom_to_fit_after_acq = | |
1562 | settings.value(GlobalSettings::Key_View_ZoomToFitAfterAcq).toBool(); | |
1563 | ||
1564 | // Only perform zoom-to-fit if the user hasn't altered the viewport and | |
1565 | // we didn't restore settings in the meanwhile | |
1566 | if (zoom_to_fit_after_acq && | |
1567 | !suppress_zoom_to_fit_after_acq_ && | |
1568 | (scale_ == scale_at_acq_start_) && | |
1569 | (offset_ == offset_at_acq_start_)) | |
1570 | zoom_fit(false); // We're stopped, so the GUI state doesn't matter | |
1571 | ||
1572 | suppress_zoom_to_fit_after_acq_ = false; | |
1573 | } | |
1574 | } | |
1575 | ||
1576 | void View::on_new_segment(int new_segment_id) | |
1577 | { | |
1578 | on_segment_changed(new_segment_id); | |
1579 | } | |
1580 | ||
1581 | void View::on_segment_completed(int segment_id) | |
1582 | { | |
1583 | on_segment_changed(segment_id); | |
1584 | } | |
1585 | ||
1586 | void View::on_segment_changed(int segment) | |
1587 | { | |
1588 | switch (segment_display_mode_) { | |
1589 | case Trace::ShowLastSegmentOnly: | |
1590 | case Trace::ShowSingleSegmentOnly: | |
1591 | set_current_segment(segment); | |
1592 | break; | |
1593 | ||
1594 | case Trace::ShowLastCompleteSegmentOnly: | |
1595 | // Only update if all segments are complete | |
1596 | if (session_.all_segments_complete(segment)) | |
1597 | set_current_segment(segment); | |
1598 | break; | |
1599 | ||
1600 | case Trace::ShowAllSegments: | |
1601 | case Trace::ShowAccumulatedIntensity: | |
1602 | default: | |
1603 | break; | |
1604 | } | |
1605 | } | |
1606 | ||
1607 | void View::on_settingViewTriggerIsZeroTime_changed(const QVariant new_value) | |
1608 | { | |
1609 | if (new_value.toBool()) { | |
1610 | // The first trigger for this segment is used as the zero position | |
1611 | vector<util::Timestamp> triggers = session_.get_triggers(current_segment_); | |
1612 | if (triggers.size() > 0) | |
1613 | set_zero_position(triggers.front()); | |
1614 | } else | |
1615 | reset_zero_position(); | |
1616 | } | |
1617 | ||
1618 | void View::perform_delayed_view_update() | |
1619 | { | |
1620 | if (always_zoom_to_fit_) { | |
1621 | zoom_fit(true); | |
1622 | } else if (sticky_scrolling_) { | |
1623 | // Make right side of the view sticky | |
1624 | double length = 0; | |
1625 | Timestamp offset; | |
1626 | get_scroll_layout(length, offset); | |
1627 | ||
1628 | const QSize areaSize = viewport_->size(); | |
1629 | length = max(length - areaSize.width(), 0.0); | |
1630 | ||
1631 | set_offset(scale_ * length); | |
1632 | } | |
1633 | ||
1634 | determine_time_unit(); | |
1635 | update_scroll(); | |
1636 | ruler_->update(); | |
1637 | viewport_->update(); | |
1638 | } | |
1639 | ||
1640 | void View::process_sticky_events() | |
1641 | { | |
1642 | if (sticky_events_ & TraceTreeItemHExtentsChanged) | |
1643 | update_layout(); | |
1644 | if (sticky_events_ & TraceTreeItemVExtentsChanged) { | |
1645 | restack_all_trace_tree_items(); | |
1646 | update_scroll(); | |
1647 | } | |
1648 | ||
1649 | // Clear the sticky events | |
1650 | sticky_events_ = 0; | |
1651 | } | |
1652 | ||
1653 | } // namespace trace | |
1654 | } // namespace views | |
1655 | } // namespace pv |