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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 | ||
33 | #include <QApplication> | |
34 | #include <QDebug> | |
35 | #include <QEvent> | |
36 | #include <QFontMetrics> | |
37 | #include <QMenu> | |
38 | #include <QMouseEvent> | |
39 | #include <QScrollBar> | |
40 | #include <QVBoxLayout> | |
41 | ||
42 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
43 | ||
44 | #include "view.hpp" | |
45 | ||
46 | #include "pv/globalsettings.hpp" | |
47 | #include "pv/metadata_obj.hpp" | |
48 | #include "pv/session.hpp" | |
49 | #include "pv/util.hpp" | |
50 | #include "pv/data/logic.hpp" | |
51 | #include "pv/data/logicsegment.hpp" | |
52 | #include "pv/data/signalbase.hpp" | |
53 | #include "pv/devices/device.hpp" | |
54 | #include "pv/views/trace/mathsignal.hpp" | |
55 | #include "pv/views/trace/analogsignal.hpp" | |
56 | #include "pv/views/trace/header.hpp" | |
57 | #include "pv/views/trace/logicsignal.hpp" | |
58 | #include "pv/views/trace/ruler.hpp" | |
59 | #include "pv/views/trace/signal.hpp" | |
60 | #include "pv/views/trace/tracegroup.hpp" | |
61 | #include "pv/views/trace/triggermarker.hpp" | |
62 | #include "pv/views/trace/viewport.hpp" | |
63 | ||
64 | #ifdef ENABLE_DECODE | |
65 | #include "pv/views/trace/decodetrace.hpp" | |
66 | #endif | |
67 | ||
68 | using pv::data::SignalBase; | |
69 | using pv::data::SignalData; | |
70 | using pv::data::Segment; | |
71 | using pv::util::TimeUnit; | |
72 | using pv::util::Timestamp; | |
73 | ||
74 | using std::back_inserter; | |
75 | using std::copy_if; | |
76 | using std::count_if; | |
77 | using std::inserter; | |
78 | using std::lock_guard; | |
79 | using std::max; | |
80 | using std::make_pair; | |
81 | using std::make_shared; | |
82 | using std::min; | |
83 | using std::numeric_limits; | |
84 | using std::pair; | |
85 | using std::set; | |
86 | using std::set_difference; | |
87 | using std::shared_ptr; | |
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 | /* Area at the top and bottom of the view that can't be scrolled out of sight */ | |
100 | const int View::ViewScrollMargin = 50; | |
101 | ||
102 | const int View::ScaleUnits[3] = {1, 2, 5}; | |
103 | ||
104 | CustomScrollArea::CustomScrollArea(QWidget *parent) : | |
105 | QAbstractScrollArea(parent) | |
106 | { | |
107 | } | |
108 | ||
109 | bool CustomScrollArea::viewportEvent(QEvent *event) | |
110 | { | |
111 | switch (event->type()) { | |
112 | case QEvent::Paint: | |
113 | case QEvent::MouseButtonPress: | |
114 | case QEvent::MouseButtonRelease: | |
115 | case QEvent::MouseButtonDblClick: | |
116 | case QEvent::MouseMove: | |
117 | case QEvent::Wheel: | |
118 | case QEvent::TouchBegin: | |
119 | case QEvent::TouchUpdate: | |
120 | case QEvent::TouchEnd: | |
121 | return false; | |
122 | default: | |
123 | return QAbstractScrollArea::viewportEvent(event); | |
124 | } | |
125 | } | |
126 | ||
127 | View::View(Session &session, bool is_main_view, QMainWindow *parent) : | |
128 | ViewBase(session, is_main_view, parent), | |
129 | ||
130 | // Note: Place defaults in View::reset_view_state(), not here | |
131 | splitter_(new QSplitter()), | |
132 | header_was_shrunk_(false), // The splitter remains unchanged after a reset, so this goes here | |
133 | sticky_scrolling_(false), // Default setting is set in MainWindow::setup_ui() | |
134 | scroll_needs_defaults_(true) | |
135 | { | |
136 | QVBoxLayout *root_layout = new QVBoxLayout(this); | |
137 | root_layout->setContentsMargins(0, 0, 0, 0); | |
138 | root_layout->addWidget(splitter_); | |
139 | ||
140 | viewport_ = new Viewport(*this); | |
141 | scrollarea_ = new CustomScrollArea(splitter_); | |
142 | scrollarea_->setViewport(viewport_); | |
143 | scrollarea_->setFrameShape(QFrame::NoFrame); | |
144 | ||
145 | ruler_ = new Ruler(*this); | |
146 | ||
147 | header_ = new Header(*this); | |
148 | header_->setMinimumWidth(10); // So that the arrow tips show at least | |
149 | ||
150 | // We put the header into a simple layout so that we can add the top margin, | |
151 | // allowing us to make it line up with the bottom of the ruler | |
152 | QWidget *header_container = new QWidget(); | |
153 | header_container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); | |
154 | QVBoxLayout *header_layout = new QVBoxLayout(header_container); | |
155 | header_layout->setContentsMargins(0, ruler_->sizeHint().height(), 0, 0); | |
156 | header_layout->addWidget(header_); | |
157 | ||
158 | // To let the ruler and scrollarea be on the same split pane, we need a layout | |
159 | QWidget *trace_container = new QWidget(); | |
160 | trace_container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); | |
161 | QVBoxLayout *trace_layout = new QVBoxLayout(trace_container); | |
162 | trace_layout->setSpacing(0); // We don't want space between the ruler and scrollarea | |
163 | trace_layout->setContentsMargins(0, 0, 0, 0); | |
164 | trace_layout->addWidget(ruler_); | |
165 | trace_layout->addWidget(scrollarea_); | |
166 | ||
167 | splitter_->addWidget(header_container); | |
168 | splitter_->addWidget(trace_container); | |
169 | splitter_->setHandleWidth(1); // Don't show a visible rubber band | |
170 | splitter_->setCollapsible(0, false); // Prevent the header from collapsing | |
171 | splitter_->setCollapsible(1, false); // Prevent the traces from collapsing | |
172 | splitter_->setStretchFactor(0, 0); // Prevent the panes from being resized | |
173 | splitter_->setStretchFactor(1, 1); // when the entire view is resized | |
174 | splitter_->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); | |
175 | ||
176 | viewport_->installEventFilter(this); | |
177 | ruler_->installEventFilter(this); | |
178 | header_->installEventFilter(this); | |
179 | ||
180 | // Set up settings and event handlers | |
181 | GlobalSettings settings; | |
182 | colored_bg_ = settings.value(GlobalSettings::Key_View_ColoredBG).toBool(); | |
183 | snap_distance_ = settings.value(GlobalSettings::Key_View_SnapDistance).toInt(); | |
184 | ||
185 | GlobalSettings::add_change_handler(this); | |
186 | ||
187 | // Set up metadata objects and event handlers | |
188 | if (is_main_view) { | |
189 | session_.metadata_obj_manager()->create_object(MetadataObjMainViewRange); | |
190 | session_.metadata_obj_manager()->create_object(MetadataObjMousePos); | |
191 | } | |
192 | ||
193 | // Set up UI event handlers | |
194 | connect(scrollarea_->horizontalScrollBar(), SIGNAL(valueChanged(int)), | |
195 | this, SLOT(h_scroll_value_changed(int))); | |
196 | connect(scrollarea_->verticalScrollBar(), SIGNAL(valueChanged(int)), | |
197 | this, SLOT(v_scroll_value_changed())); | |
198 | ||
199 | connect(header_, SIGNAL(selection_changed()), | |
200 | ruler_, SLOT(clear_selection())); | |
201 | connect(ruler_, SIGNAL(selection_changed()), | |
202 | header_, SLOT(clear_selection())); | |
203 | ||
204 | connect(header_, SIGNAL(selection_changed()), | |
205 | this, SIGNAL(selection_changed())); | |
206 | connect(ruler_, SIGNAL(selection_changed()), | |
207 | this, SIGNAL(selection_changed())); | |
208 | ||
209 | connect(splitter_, SIGNAL(splitterMoved(int, int)), | |
210 | this, SLOT(on_splitter_moved())); | |
211 | ||
212 | connect(&lazy_event_handler_, SIGNAL(timeout()), | |
213 | this, SLOT(process_sticky_events())); | |
214 | lazy_event_handler_.setSingleShot(true); | |
215 | lazy_event_handler_.setInterval(1000 / ViewBase::MaxViewAutoUpdateRate); | |
216 | ||
217 | // Set up local keyboard shortcuts | |
218 | zoom_in_shortcut_ = new QShortcut(QKeySequence(Qt::Key_Plus), this, | |
219 | SLOT(on_zoom_in_shortcut_triggered()), nullptr, Qt::WidgetWithChildrenShortcut); | |
220 | zoom_in_shortcut_->setAutoRepeat(false); | |
221 | ||
222 | zoom_out_shortcut_ = new QShortcut(QKeySequence(Qt::Key_Minus), this, | |
223 | SLOT(on_zoom_out_shortcut_triggered()), nullptr, Qt::WidgetWithChildrenShortcut); | |
224 | zoom_out_shortcut_->setAutoRepeat(false); | |
225 | ||
226 | zoom_in_shortcut_2_ = new QShortcut(QKeySequence(Qt::Key_Up), this, | |
227 | SLOT(on_zoom_in_shortcut_triggered()), nullptr, Qt::WidgetWithChildrenShortcut); | |
228 | zoom_out_shortcut_2_ = new QShortcut(QKeySequence(Qt::Key_Down), this, | |
229 | SLOT(on_zoom_out_shortcut_triggered()), nullptr, Qt::WidgetWithChildrenShortcut); | |
230 | ||
231 | home_shortcut_ = new QShortcut(QKeySequence(Qt::Key_Home), this, | |
232 | SLOT(on_scroll_to_start_shortcut_triggered()), nullptr, Qt::WidgetWithChildrenShortcut); | |
233 | home_shortcut_->setAutoRepeat(false); | |
234 | ||
235 | end_shortcut_ = new QShortcut(QKeySequence(Qt::Key_End), this, | |
236 | SLOT(on_scroll_to_end_shortcut_triggered()), nullptr, Qt::WidgetWithChildrenShortcut); | |
237 | end_shortcut_->setAutoRepeat(false); | |
238 | ||
239 | grab_ruler_left_shortcut_ = new QShortcut(QKeySequence(Qt::Key_1), this, | |
240 | nullptr, nullptr, Qt::WidgetWithChildrenShortcut); | |
241 | connect(grab_ruler_left_shortcut_, &QShortcut::activated, | |
242 | this, [=]{on_grab_ruler(1);}); | |
243 | grab_ruler_left_shortcut_->setAutoRepeat(false); | |
244 | ||
245 | grab_ruler_right_shortcut_ = new QShortcut(QKeySequence(Qt::Key_2), this, | |
246 | nullptr, nullptr, Qt::WidgetWithChildrenShortcut); | |
247 | connect(grab_ruler_right_shortcut_, &QShortcut::activated, | |
248 | this, [=]{on_grab_ruler(2);}); | |
249 | grab_ruler_right_shortcut_->setAutoRepeat(false); | |
250 | ||
251 | cancel_grab_shortcut_ = new QShortcut(QKeySequence(Qt::Key_Escape), this, | |
252 | nullptr, nullptr, Qt::WidgetWithChildrenShortcut); | |
253 | connect(cancel_grab_shortcut_, &QShortcut::activated, | |
254 | this, [=]{grabbed_widget_ = nullptr;}); | |
255 | cancel_grab_shortcut_->setAutoRepeat(false); | |
256 | ||
257 | // Trigger the initial event manually. The default device has signals | |
258 | // which were created before this object came into being | |
259 | signals_changed(); | |
260 | ||
261 | // Make sure the transparent widgets are on the top | |
262 | ruler_->raise(); | |
263 | header_->raise(); | |
264 | ||
265 | reset_view_state(); | |
266 | } | |
267 | ||
268 | View::~View() | |
269 | { | |
270 | GlobalSettings::remove_change_handler(this); | |
271 | } | |
272 | ||
273 | ViewType View::get_type() const | |
274 | { | |
275 | return ViewTypeTrace; | |
276 | } | |
277 | ||
278 | void View::reset_view_state() | |
279 | { | |
280 | ViewBase::reset_view_state(); | |
281 | ||
282 | segment_display_mode_ = Trace::ShowLastSegmentOnly; | |
283 | segment_selectable_ = false; | |
284 | scale_ = 1e-3; | |
285 | offset_ = 0; | |
286 | ruler_offset_ = 0; | |
287 | zero_offset_ = 0; | |
288 | custom_zero_offset_set_ = false; | |
289 | updating_scroll_ = false; | |
290 | restoring_state_ = false; | |
291 | always_zoom_to_fit_ = false; | |
292 | tick_period_ = 0; | |
293 | tick_prefix_ = pv::util::SIPrefix::yocto; | |
294 | tick_precision_ = 0; | |
295 | time_unit_ = util::TimeUnit::Time; | |
296 | show_cursors_ = false; | |
297 | cursors_ = make_shared<CursorPair>(*this); | |
298 | next_flag_text_ = 'A'; | |
299 | trigger_markers_.clear(); | |
300 | hover_widget_ = nullptr; | |
301 | grabbed_widget_ = nullptr; | |
302 | hover_point_ = QPoint(-1, -1); | |
303 | scroll_needs_defaults_ = true; | |
304 | scale_at_acq_start_ = 0; | |
305 | offset_at_acq_start_ = 0; | |
306 | ||
307 | show_cursors_ = false; | |
308 | cursor_state_changed(show_cursors_); | |
309 | flags_.clear(); | |
310 | ||
311 | // Update the zoom state | |
312 | calculate_tick_spacing(); | |
313 | ||
314 | // Make sure the standard bar's segment selector is in sync | |
315 | set_segment_display_mode(segment_display_mode_); | |
316 | ||
317 | scrollarea_->verticalScrollBar()->setRange(-100000000, 100000000); | |
318 | } | |
319 | ||
320 | Session& View::session() | |
321 | { | |
322 | return session_; | |
323 | } | |
324 | ||
325 | const Session& View::session() const | |
326 | { | |
327 | return session_; | |
328 | } | |
329 | ||
330 | vector< shared_ptr<Signal> > View::signals() const | |
331 | { | |
332 | return signals_; | |
333 | } | |
334 | ||
335 | shared_ptr<Signal> View::get_signal_by_signalbase(shared_ptr<data::SignalBase> base) const | |
336 | { | |
337 | shared_ptr<Signal> ret_val; | |
338 | ||
339 | for (const shared_ptr<Signal>& s : signals_) | |
340 | if (s->base() == base) { | |
341 | ret_val = s; | |
342 | break; | |
343 | } | |
344 | ||
345 | return ret_val; | |
346 | } | |
347 | ||
348 | void View::clear_signalbases() | |
349 | { | |
350 | ViewBase::clear_signalbases(); | |
351 | signals_.clear(); | |
352 | } | |
353 | ||
354 | void View::add_signalbase(const shared_ptr<data::SignalBase> signalbase) | |
355 | { | |
356 | ViewBase::add_signalbase(signalbase); | |
357 | ||
358 | shared_ptr<Signal> signal; | |
359 | ||
360 | switch (signalbase->type()) { | |
361 | case SignalBase::LogicChannel: | |
362 | signal = shared_ptr<Signal>(new LogicSignal(session_, session_.device(), signalbase)); | |
363 | break; | |
364 | ||
365 | case SignalBase::AnalogChannel: | |
366 | signal = shared_ptr<Signal>(new AnalogSignal(session_, signalbase)); | |
367 | break; | |
368 | ||
369 | case SignalBase::MathChannel: | |
370 | signal = shared_ptr<Signal>(new MathSignal(session_, signalbase)); | |
371 | break; | |
372 | ||
373 | default: | |
374 | qDebug() << "Unknown signalbase type:" << signalbase->type(); | |
375 | assert(false); | |
376 | break; | |
377 | } | |
378 | ||
379 | signals_.push_back(signal); | |
380 | ||
381 | signal->set_segment_display_mode(segment_display_mode_); | |
382 | signal->set_current_segment(current_segment_); | |
383 | ||
384 | // Secondary views use the signal's settings in the main view | |
385 | if (!is_main_view()) { | |
386 | shared_ptr<View> main_tv = dynamic_pointer_cast<View>(session_.main_view()); | |
387 | shared_ptr<Signal> main_signal = main_tv->get_signal_by_signalbase(signalbase); | |
388 | if (main_signal) | |
389 | signal->restore_settings(main_signal->save_settings()); | |
390 | } | |
391 | ||
392 | connect(signal->base().get(), SIGNAL(name_changed(const QString&)), | |
393 | this, SLOT(on_signal_name_changed())); | |
394 | } | |
395 | ||
396 | void View::remove_signalbase(const shared_ptr<data::SignalBase> signalbase) | |
397 | { | |
398 | ViewBase::remove_signalbase(signalbase); | |
399 | ||
400 | shared_ptr<Signal> signal = get_signal_by_signalbase(signalbase); | |
401 | ||
402 | if (signal) | |
403 | remove_trace(signal); | |
404 | } | |
405 | ||
406 | #ifdef ENABLE_DECODE | |
407 | void View::clear_decode_signals() | |
408 | { | |
409 | ViewBase::clear_decode_signals(); | |
410 | decode_traces_.clear(); | |
411 | } | |
412 | ||
413 | void View::add_decode_signal(shared_ptr<data::DecodeSignal> signal) | |
414 | { | |
415 | ViewBase::add_decode_signal(signal); | |
416 | ||
417 | shared_ptr<DecodeTrace> d( | |
418 | new DecodeTrace(session_, signal, decode_traces_.size())); | |
419 | decode_traces_.push_back(d); | |
420 | ||
421 | d->set_segment_display_mode(segment_display_mode_); | |
422 | d->set_current_segment(current_segment_); | |
423 | ||
424 | connect(signal.get(), SIGNAL(name_changed(const QString&)), | |
425 | this, SLOT(on_signal_name_changed())); | |
426 | } | |
427 | ||
428 | void View::remove_decode_signal(shared_ptr<data::DecodeSignal> signal) | |
429 | { | |
430 | for (auto i = decode_traces_.begin(); i != decode_traces_.end(); i++) | |
431 | if ((*i)->base() == signal) { | |
432 | decode_traces_.erase(i); | |
433 | break; | |
434 | } | |
435 | ||
436 | ViewBase::remove_decode_signal(signal); | |
437 | } | |
438 | #endif | |
439 | ||
440 | void View::remove_trace(shared_ptr<Trace> trace) | |
441 | { | |
442 | TraceTreeItemOwner *const owner = trace->owner(); | |
443 | assert(owner); | |
444 | owner->remove_child_item(trace); | |
445 | ||
446 | for (auto i = signals_.begin(); i != signals_.end(); i++) | |
447 | if ((*i) == trace) { | |
448 | signals_.erase(i); | |
449 | break; | |
450 | } | |
451 | ||
452 | if (!header_was_shrunk_) | |
453 | resize_header_to_fit(); | |
454 | ||
455 | update_layout(); | |
456 | ||
457 | header_->update(); | |
458 | viewport_->update(); | |
459 | } | |
460 | ||
461 | shared_ptr<Signal> View::get_signal_under_mouse_cursor() const | |
462 | { | |
463 | return signal_under_mouse_cursor_; | |
464 | } | |
465 | ||
466 | View* View::view() | |
467 | { | |
468 | return this; | |
469 | } | |
470 | ||
471 | const View* View::view() const | |
472 | { | |
473 | return this; | |
474 | } | |
475 | ||
476 | Viewport* View::viewport() | |
477 | { | |
478 | return viewport_; | |
479 | } | |
480 | ||
481 | const Viewport* View::viewport() const | |
482 | { | |
483 | return viewport_; | |
484 | } | |
485 | ||
486 | QAbstractScrollArea* View::scrollarea() const | |
487 | { | |
488 | return scrollarea_; | |
489 | } | |
490 | ||
491 | const Ruler* View::ruler() const | |
492 | { | |
493 | return ruler_; | |
494 | } | |
495 | ||
496 | void View::save_settings(QSettings &settings) const | |
497 | { | |
498 | settings.setValue("scale", scale_); | |
499 | settings.setValue("v_offset", | |
500 | scrollarea_->verticalScrollBar()->sliderPosition()); | |
501 | ||
502 | settings.setValue("splitter_state", splitter_->saveState()); | |
503 | settings.setValue("segment_display_mode", segment_display_mode_); | |
504 | ||
505 | GlobalSettings::store_timestamp(settings, "offset", offset_); | |
506 | ||
507 | if (custom_zero_offset_set_) | |
508 | GlobalSettings::store_timestamp(settings, "zero_offset", -zero_offset_); | |
509 | else | |
510 | settings.remove("zero_offset"); | |
511 | ||
512 | for (const shared_ptr<Signal>& signal : signals_) { | |
513 | settings.beginGroup(signal->base()->internal_name()); | |
514 | signal->save_settings(settings); | |
515 | settings.endGroup(); | |
516 | } | |
517 | } | |
518 | ||
519 | void View::restore_settings(QSettings &settings) | |
520 | { | |
521 | // Note: It is assumed that this function is only called once, | |
522 | // immediately after restoring a previous session. | |
523 | ||
524 | if (settings.contains("scale")) | |
525 | set_scale(settings.value("scale").toDouble()); | |
526 | ||
527 | if (settings.contains("offset")) { | |
528 | // This also updates ruler_offset_ | |
529 | set_offset(GlobalSettings::restore_timestamp(settings, "offset")); | |
530 | } | |
531 | ||
532 | if (settings.contains("zero_offset")) | |
533 | set_zero_position(GlobalSettings::restore_timestamp(settings, "zero_offset")); | |
534 | ||
535 | if (settings.contains("splitter_state")) | |
536 | splitter_->restoreState(settings.value("splitter_state").toByteArray()); | |
537 | ||
538 | if (settings.contains("segment_display_mode")) | |
539 | set_segment_display_mode( | |
540 | (Trace::SegmentDisplayMode)(settings.value("segment_display_mode").toInt())); | |
541 | ||
542 | for (shared_ptr<Signal> signal : signals_) { | |
543 | settings.beginGroup(signal->base()->internal_name()); | |
544 | signal->restore_settings(settings); | |
545 | settings.endGroup(); | |
546 | } | |
547 | ||
548 | if (settings.contains("v_offset")) { | |
549 | // Note: see eventFilter() for additional information | |
550 | saved_v_offset_ = settings.value("v_offset").toInt(); | |
551 | scroll_needs_defaults_ = false; | |
552 | } | |
553 | ||
554 | restoring_state_ = true; | |
555 | ||
556 | // Update the ruler so that it uses the new scale | |
557 | calculate_tick_spacing(); | |
558 | } | |
559 | ||
560 | vector< shared_ptr<TimeItem> > View::time_items() const | |
561 | { | |
562 | const vector<shared_ptr<Flag>> f(flags()); | |
563 | vector<shared_ptr<TimeItem>> items(f.begin(), f.end()); | |
564 | ||
565 | if (cursors_) { | |
566 | items.push_back(cursors_); | |
567 | items.push_back(cursors_->first()); | |
568 | items.push_back(cursors_->second()); | |
569 | } | |
570 | ||
571 | for (auto& trigger_marker : trigger_markers_) | |
572 | items.push_back(trigger_marker); | |
573 | ||
574 | return items; | |
575 | } | |
576 | ||
577 | double View::scale() const | |
578 | { | |
579 | return scale_; | |
580 | } | |
581 | ||
582 | void View::set_scale(double scale) | |
583 | { | |
584 | if (scale_ != scale) { | |
585 | scale_ = scale; | |
586 | ||
587 | update_view_range_metaobject(); | |
588 | ||
589 | scale_changed(); | |
590 | } | |
591 | } | |
592 | ||
593 | void View::set_offset(const pv::util::Timestamp& offset, bool force_update) | |
594 | { | |
595 | if ((offset_ != offset) || force_update) { | |
596 | offset_ = offset; | |
597 | ruler_offset_ = offset_ + zero_offset_; | |
598 | ||
599 | update_view_range_metaobject(); | |
600 | ||
601 | offset_changed(); | |
602 | } | |
603 | } | |
604 | ||
605 | const Timestamp& View::offset() const | |
606 | { | |
607 | return offset_; | |
608 | } | |
609 | ||
610 | const Timestamp& View::ruler_offset() const | |
611 | { | |
612 | return ruler_offset_; | |
613 | } | |
614 | ||
615 | void View::set_zero_position(const pv::util::Timestamp& position) | |
616 | { | |
617 | zero_offset_ = -position; | |
618 | custom_zero_offset_set_ = true; | |
619 | ||
620 | // Force an immediate update of the offsets | |
621 | set_offset(offset_, true); | |
622 | ruler_->update(); | |
623 | } | |
624 | ||
625 | void View::reset_zero_position() | |
626 | { | |
627 | zero_offset_ = 0; | |
628 | ||
629 | // When enabled, the first trigger for this segment is used as the zero position | |
630 | GlobalSettings settings; | |
631 | bool trigger_is_zero_time = settings.value(GlobalSettings::Key_View_TriggerIsZeroTime).toBool(); | |
632 | ||
633 | if (trigger_is_zero_time) { | |
634 | vector<util::Timestamp> triggers = session_.get_triggers(current_segment_); | |
635 | ||
636 | if (triggers.size() > 0) | |
637 | zero_offset_ = triggers.front(); | |
638 | } | |
639 | ||
640 | custom_zero_offset_set_ = false; | |
641 | ||
642 | // Force an immediate update of the offsets | |
643 | set_offset(offset_, true); | |
644 | ruler_->update(); | |
645 | } | |
646 | ||
647 | pv::util::Timestamp View::zero_offset() const | |
648 | { | |
649 | return zero_offset_; | |
650 | } | |
651 | ||
652 | int View::owner_visual_v_offset() const | |
653 | { | |
654 | return -scrollarea_->verticalScrollBar()->sliderPosition(); | |
655 | } | |
656 | ||
657 | void View::set_v_offset(int offset) | |
658 | { | |
659 | scrollarea_->verticalScrollBar()->setSliderPosition(offset); | |
660 | header_->update(); | |
661 | viewport_->update(); | |
662 | } | |
663 | ||
664 | void View::set_h_offset(int offset) | |
665 | { | |
666 | scrollarea_->horizontalScrollBar()->setSliderPosition(offset); | |
667 | header_->update(); | |
668 | viewport_->update(); | |
669 | } | |
670 | ||
671 | int View::get_h_scrollbar_maximum() const | |
672 | { | |
673 | return scrollarea_->horizontalScrollBar()->maximum(); | |
674 | } | |
675 | ||
676 | unsigned int View::depth() const | |
677 | { | |
678 | return 0; | |
679 | } | |
680 | ||
681 | uint32_t View::current_segment() const | |
682 | { | |
683 | return current_segment_; | |
684 | } | |
685 | ||
686 | pv::util::SIPrefix View::tick_prefix() const | |
687 | { | |
688 | return tick_prefix_; | |
689 | } | |
690 | ||
691 | void View::set_tick_prefix(pv::util::SIPrefix tick_prefix) | |
692 | { | |
693 | if (tick_prefix_ != tick_prefix) { | |
694 | tick_prefix_ = tick_prefix; | |
695 | tick_prefix_changed(); | |
696 | } | |
697 | } | |
698 | ||
699 | unsigned int View::tick_precision() const | |
700 | { | |
701 | return tick_precision_; | |
702 | } | |
703 | ||
704 | void View::set_tick_precision(unsigned tick_precision) | |
705 | { | |
706 | if (tick_precision_ != tick_precision) { | |
707 | tick_precision_ = tick_precision; | |
708 | tick_precision_changed(); | |
709 | } | |
710 | } | |
711 | ||
712 | const pv::util::Timestamp& View::tick_period() const | |
713 | { | |
714 | return tick_period_; | |
715 | } | |
716 | ||
717 | unsigned int View::minor_tick_count() const | |
718 | { | |
719 | return minor_tick_count_; | |
720 | } | |
721 | ||
722 | void View::set_tick_period(const pv::util::Timestamp& tick_period) | |
723 | { | |
724 | if (tick_period_ != tick_period) { | |
725 | tick_period_ = tick_period; | |
726 | tick_period_changed(); | |
727 | } | |
728 | } | |
729 | ||
730 | TimeUnit View::time_unit() const | |
731 | { | |
732 | return time_unit_; | |
733 | } | |
734 | ||
735 | void View::set_time_unit(pv::util::TimeUnit time_unit) | |
736 | { | |
737 | if (time_unit_ != time_unit) { | |
738 | time_unit_ = time_unit; | |
739 | time_unit_changed(); | |
740 | } | |
741 | } | |
742 | ||
743 | void View::set_current_segment(uint32_t segment_id) | |
744 | { | |
745 | current_segment_ = segment_id; | |
746 | ||
747 | for (const shared_ptr<Signal>& signal : signals_) | |
748 | signal->set_current_segment(current_segment_); | |
749 | #ifdef ENABLE_DECODE | |
750 | for (shared_ptr<DecodeTrace>& dt : decode_traces_) | |
751 | dt->set_current_segment(current_segment_); | |
752 | #endif | |
753 | ||
754 | vector<util::Timestamp> triggers = session_.get_triggers(current_segment_); | |
755 | ||
756 | trigger_markers_.clear(); | |
757 | for (util::Timestamp timestamp : triggers) | |
758 | trigger_markers_.push_back(make_shared<TriggerMarker>(*this, timestamp)); | |
759 | ||
760 | if (!custom_zero_offset_set_) | |
761 | reset_zero_position(); | |
762 | ||
763 | viewport_->update(); | |
764 | ||
765 | segment_changed(segment_id); | |
766 | } | |
767 | ||
768 | bool View::segment_is_selectable() const | |
769 | { | |
770 | return segment_selectable_; | |
771 | } | |
772 | ||
773 | Trace::SegmentDisplayMode View::segment_display_mode() const | |
774 | { | |
775 | return segment_display_mode_; | |
776 | } | |
777 | ||
778 | void View::set_segment_display_mode(Trace::SegmentDisplayMode mode) | |
779 | { | |
780 | segment_display_mode_ = mode; | |
781 | ||
782 | for (const shared_ptr<Signal>& signal : signals_) | |
783 | signal->set_segment_display_mode(mode); | |
784 | ||
785 | uint32_t last_segment = session_.get_highest_segment_id(); | |
786 | ||
787 | switch (mode) { | |
788 | case Trace::ShowLastSegmentOnly: | |
789 | if (current_segment_ != last_segment) | |
790 | set_current_segment(last_segment); | |
791 | break; | |
792 | ||
793 | case Trace::ShowLastCompleteSegmentOnly: | |
794 | // Do nothing if we only have one segment so far | |
795 | if (last_segment > 0) { | |
796 | // If the last segment isn't complete, the previous one must be | |
797 | uint32_t segment_id = | |
798 | (session_.all_segments_complete(last_segment)) ? | |
799 | last_segment : last_segment - 1; | |
800 | ||
801 | if (current_segment_ != segment_id) | |
802 | set_current_segment(segment_id); | |
803 | } | |
804 | break; | |
805 | ||
806 | case Trace::ShowSingleSegmentOnly: | |
807 | case Trace::ShowAllSegments: | |
808 | case Trace::ShowAccumulatedIntensity: | |
809 | default: | |
810 | // Current segment remains as-is | |
811 | break; | |
812 | } | |
813 | ||
814 | segment_selectable_ = true; | |
815 | ||
816 | if ((mode == Trace::ShowAllSegments) || (mode == Trace::ShowAccumulatedIntensity)) | |
817 | segment_selectable_ = false; | |
818 | ||
819 | viewport_->update(); | |
820 | ||
821 | segment_display_mode_changed((int)mode, segment_selectable_); | |
822 | } | |
823 | ||
824 | void View::zoom(double steps) | |
825 | { | |
826 | zoom(steps, viewport_->width() / 2); | |
827 | } | |
828 | ||
829 | void View::zoom(double steps, int offset) | |
830 | { | |
831 | set_zoom(scale_ * pow(3.0 / 2.0, -steps), offset); | |
832 | } | |
833 | ||
834 | void View::zoom_fit(bool gui_state) | |
835 | { | |
836 | // Act as one-shot when stopped, toggle along with the GUI otherwise | |
837 | if (session_.get_capture_state() == Session::Stopped) { | |
838 | always_zoom_to_fit_ = false; | |
839 | always_zoom_to_fit_changed(false); | |
840 | } else { | |
841 | always_zoom_to_fit_ = gui_state; | |
842 | always_zoom_to_fit_changed(gui_state); | |
843 | } | |
844 | ||
845 | const pair<Timestamp, Timestamp> extents = get_time_extents(); | |
846 | const Timestamp delta = extents.second - extents.first; | |
847 | if (delta < Timestamp("1e-12")) | |
848 | return; | |
849 | ||
850 | assert(viewport_); | |
851 | const int w = viewport_->width(); | |
852 | if (w <= 0) | |
853 | return; | |
854 | ||
855 | const Timestamp scale = max(min(delta / w, MaxScale), MinScale); | |
856 | set_scale_offset(scale.convert_to<double>(), extents.first); | |
857 | } | |
858 | ||
859 | void View::focus_on_range(uint64_t start_sample, uint64_t end_sample) | |
860 | { | |
861 | assert(viewport_); | |
862 | const uint64_t w = viewport_->width(); | |
863 | if (w <= 0) | |
864 | return; | |
865 | ||
866 | const double samplerate = session_.get_samplerate(); | |
867 | const double samples_per_pixel = samplerate * scale_; | |
868 | const uint64_t viewport_samples = w * samples_per_pixel; | |
869 | ||
870 | const uint64_t sample_delta = (end_sample - start_sample); | |
871 | ||
872 | // Note: We add 20% margin on the left and 5% on the right | |
873 | const uint64_t ext_sample_delta = sample_delta * 1.25; | |
874 | ||
875 | // Check if we can keep the zoom level and just center the supplied range | |
876 | if (viewport_samples >= ext_sample_delta) { | |
877 | // Note: offset is the left edge of the view so to center, we subtract half the view width | |
878 | const int64_t sample_offset = (start_sample + (sample_delta / 2) - (viewport_samples / 2)); | |
879 | const Timestamp offset = sample_offset / samplerate; | |
880 | set_scale_offset(scale_, offset); | |
881 | } else { | |
882 | const Timestamp offset = (start_sample - sample_delta * 0.20) / samplerate; | |
883 | const Timestamp delta = ext_sample_delta / samplerate; | |
884 | const Timestamp scale = max(min(delta / w, MaxScale), MinScale); | |
885 | set_scale_offset(scale.convert_to<double>(), offset); | |
886 | } | |
887 | } | |
888 | ||
889 | void View::set_scale_offset(double scale, const Timestamp& offset) | |
890 | { | |
891 | // Disable sticky scrolling / always zoom to fit when acquisition runs | |
892 | // and user drags the viewport | |
893 | if ((scale_ == scale) && (offset_ != offset) && | |
894 | (session_.get_capture_state() == Session::Running)) { | |
895 | ||
896 | if (sticky_scrolling_) { | |
897 | sticky_scrolling_ = false; | |
898 | sticky_scrolling_changed(false); | |
899 | } | |
900 | ||
901 | if (always_zoom_to_fit_) { | |
902 | always_zoom_to_fit_ = false; | |
903 | always_zoom_to_fit_changed(false); | |
904 | } | |
905 | } | |
906 | ||
907 | set_scale(scale); | |
908 | set_offset(offset); | |
909 | ||
910 | calculate_tick_spacing(); | |
911 | ||
912 | update_scroll(); | |
913 | ruler_->update(); | |
914 | viewport_->update(); | |
915 | } | |
916 | ||
917 | vector< shared_ptr<SignalData> > View::get_visible_data() const | |
918 | { | |
919 | // Make a set of all the visible data objects | |
920 | vector< shared_ptr<SignalData> > visible_data; | |
921 | for (const shared_ptr<Signal>& sig : signals_) | |
922 | if (sig->enabled()) | |
923 | visible_data.push_back(sig->data()); | |
924 | ||
925 | return visible_data; | |
926 | } | |
927 | ||
928 | pair<Timestamp, Timestamp> View::get_time_extents() const | |
929 | { | |
930 | boost::optional<Timestamp> left_time, right_time; | |
931 | ||
932 | vector< shared_ptr<SignalData> > data; | |
933 | if (signals_.size() == 0) | |
934 | return make_pair(0, 0); | |
935 | ||
936 | for (shared_ptr<Signal> s : signals_) | |
937 | if (s->data() && (s->data()->segments().size() > 0)) | |
938 | data.push_back(s->data()); | |
939 | ||
940 | for (const shared_ptr<SignalData>& d : data) { | |
941 | const vector< shared_ptr<Segment> > segments = d->segments(); | |
942 | for (const shared_ptr<Segment>& s : segments) { | |
943 | double samplerate = s->samplerate(); | |
944 | samplerate = (samplerate <= 0.0) ? 1.0 : samplerate; | |
945 | ||
946 | const Timestamp start_time = s->start_time(); | |
947 | left_time = left_time ? | |
948 | min(*left_time, start_time) : | |
949 | start_time; | |
950 | right_time = right_time ? | |
951 | max(*right_time, start_time + d->max_sample_count() / samplerate) : | |
952 | start_time + d->max_sample_count() / samplerate; | |
953 | } | |
954 | } | |
955 | ||
956 | if (!left_time || !right_time) | |
957 | return make_pair(0, 0); | |
958 | ||
959 | assert(*left_time <= *right_time); | |
960 | return make_pair(*left_time, *right_time); | |
961 | } | |
962 | ||
963 | bool View::colored_bg() const | |
964 | { | |
965 | return colored_bg_; | |
966 | } | |
967 | ||
968 | bool View::cursors_shown() const | |
969 | { | |
970 | return show_cursors_; | |
971 | } | |
972 | ||
973 | void View::show_cursors(bool show) | |
974 | { | |
975 | if (show_cursors_ != show) { | |
976 | show_cursors_ = show; | |
977 | ||
978 | cursor_state_changed(show); | |
979 | ruler_->update(); | |
980 | viewport_->update(); | |
981 | } | |
982 | } | |
983 | ||
984 | void View::set_cursors(pv::util::Timestamp& first, pv::util::Timestamp& second) | |
985 | { | |
986 | assert(cursors_); | |
987 | ||
988 | cursors_->first()->set_time(first); | |
989 | cursors_->second()->set_time(second); | |
990 | ||
991 | ruler_->update(); | |
992 | viewport_->update(); | |
993 | } | |
994 | ||
995 | void View::center_cursors() | |
996 | { | |
997 | assert(cursors_); | |
998 | ||
999 | const double time_width = scale_ * viewport_->width(); | |
1000 | cursors_->first()->set_time(offset_ + time_width * 0.4); | |
1001 | cursors_->second()->set_time(offset_ + time_width * 0.6); | |
1002 | ||
1003 | ruler_->update(); | |
1004 | viewport_->update(); | |
1005 | } | |
1006 | ||
1007 | shared_ptr<CursorPair> View::cursors() const | |
1008 | { | |
1009 | return cursors_; | |
1010 | } | |
1011 | ||
1012 | shared_ptr<Flag> View::add_flag(const Timestamp& time) | |
1013 | { | |
1014 | shared_ptr<Flag> flag = | |
1015 | make_shared<Flag>(*this, time, QString("%1").arg(next_flag_text_)); | |
1016 | flags_.push_back(flag); | |
1017 | ||
1018 | next_flag_text_ = (next_flag_text_ >= 'Z') ? 'A' : | |
1019 | (next_flag_text_ + 1); | |
1020 | ||
1021 | time_item_appearance_changed(true, true); | |
1022 | return flag; | |
1023 | } | |
1024 | ||
1025 | void View::remove_flag(shared_ptr<Flag> flag) | |
1026 | { | |
1027 | flags_.remove(flag); | |
1028 | time_item_appearance_changed(true, true); | |
1029 | } | |
1030 | ||
1031 | vector< shared_ptr<Flag> > View::flags() const | |
1032 | { | |
1033 | vector< shared_ptr<Flag> > flags(flags_.begin(), flags_.end()); | |
1034 | stable_sort(flags.begin(), flags.end(), | |
1035 | [](const shared_ptr<Flag> &a, const shared_ptr<Flag> &b) { | |
1036 | return a->time() < b->time(); | |
1037 | }); | |
1038 | ||
1039 | return flags; | |
1040 | } | |
1041 | ||
1042 | const QPoint& View::hover_point() const | |
1043 | { | |
1044 | return hover_point_; | |
1045 | } | |
1046 | ||
1047 | const QWidget* View::hover_widget() const | |
1048 | { | |
1049 | return hover_widget_; | |
1050 | } | |
1051 | ||
1052 | int64_t View::get_nearest_level_change(const QPoint &p) | |
1053 | { | |
1054 | // Is snapping disabled? | |
1055 | if (snap_distance_ == 0) | |
1056 | return -1; | |
1057 | ||
1058 | struct entry_t { | |
1059 | entry_t(shared_ptr<Signal> s) : | |
1060 | signal(s), delta(numeric_limits<int64_t>::max()), sample(-1), is_dense(false) {} | |
1061 | shared_ptr<Signal> signal; | |
1062 | int64_t delta; | |
1063 | int64_t sample; | |
1064 | bool is_dense; | |
1065 | }; | |
1066 | ||
1067 | vector<entry_t> list; | |
1068 | ||
1069 | // Create list of signals to consider | |
1070 | if (signal_under_mouse_cursor_) | |
1071 | list.emplace_back(signal_under_mouse_cursor_); | |
1072 | else | |
1073 | for (shared_ptr<Signal> s : signals_) { | |
1074 | if (!s->enabled()) | |
1075 | continue; | |
1076 | ||
1077 | list.emplace_back(s); | |
1078 | } | |
1079 | ||
1080 | // Get data for listed signals | |
1081 | for (entry_t &e : list) { | |
1082 | // Calculate sample number from cursor position | |
1083 | const double samples_per_pixel = e.signal->base()->get_samplerate() * scale(); | |
1084 | const int64_t x_offset = offset().convert_to<double>() / scale(); | |
1085 | const int64_t sample_num = max(((x_offset + p.x()) * samples_per_pixel), 0.0); | |
1086 | ||
1087 | vector<data::LogicSegment::EdgePair> edges = | |
1088 | e.signal->get_nearest_level_changes(sample_num); | |
1089 | ||
1090 | if (edges.empty()) | |
1091 | continue; | |
1092 | ||
1093 | // Check first edge | |
1094 | const int64_t first_sample_delta = abs(sample_num - edges.front().first); | |
1095 | const int64_t first_delta = first_sample_delta / samples_per_pixel; | |
1096 | e.delta = first_delta; | |
1097 | e.sample = edges.front().first; | |
1098 | ||
1099 | // Check second edge if available | |
1100 | if (edges.size() == 2) { | |
1101 | // Note: -1 because this is usually the right edge and sample points are left-aligned | |
1102 | const int64_t second_sample_delta = abs(sample_num - edges.back().first - 1); | |
1103 | const int64_t second_delta = second_sample_delta / samples_per_pixel; | |
1104 | ||
1105 | // If both edges are too close, we mark this signal as being dense | |
1106 | if ((first_delta + second_delta) <= snap_distance_) | |
1107 | e.is_dense = true; | |
1108 | ||
1109 | if (second_delta < first_delta) { | |
1110 | e.delta = second_delta; | |
1111 | e.sample = edges.back().first; | |
1112 | } | |
1113 | } | |
1114 | } | |
1115 | ||
1116 | // Look for the best match: non-dense first, then dense | |
1117 | entry_t *match = nullptr; | |
1118 | ||
1119 | for (entry_t &e : list) { | |
1120 | if (e.delta > snap_distance_ || e.is_dense) | |
1121 | continue; | |
1122 | ||
1123 | if (match) { | |
1124 | if (e.delta < match->delta) | |
1125 | match = &e; | |
1126 | } else | |
1127 | match = &e; | |
1128 | } | |
1129 | ||
1130 | if (!match) { | |
1131 | for (entry_t &e : list) { | |
1132 | if (!e.is_dense) | |
1133 | continue; | |
1134 | ||
1135 | if (match) { | |
1136 | if (e.delta < match->delta) | |
1137 | match = &e; | |
1138 | } else | |
1139 | match = &e; | |
1140 | } | |
1141 | } | |
1142 | ||
1143 | if (match) { | |
1144 | // Somewhat ugly hack to make TimeItem::drag_by() work | |
1145 | signal_under_mouse_cursor_ = match->signal; | |
1146 | ||
1147 | return match->sample; | |
1148 | } | |
1149 | ||
1150 | return -1; | |
1151 | } | |
1152 | ||
1153 | void View::restack_all_trace_tree_items() | |
1154 | { | |
1155 | // Make a list of owners that is sorted from deepest first | |
1156 | const vector<shared_ptr<TraceTreeItem>> items( | |
1157 | list_by_type<TraceTreeItem>()); | |
1158 | set< TraceTreeItemOwner* > owners; | |
1159 | for (const auto &r : items) | |
1160 | owners.insert(r->owner()); | |
1161 | vector< TraceTreeItemOwner* > sorted_owners(owners.begin(), owners.end()); | |
1162 | sort(sorted_owners.begin(), sorted_owners.end(), | |
1163 | [](const TraceTreeItemOwner* a, const TraceTreeItemOwner *b) { | |
1164 | return a->depth() > b->depth(); }); | |
1165 | ||
1166 | // Restack the items recursively | |
1167 | for (auto &o : sorted_owners) | |
1168 | o->restack_items(); | |
1169 | ||
1170 | // Animate the items to their destination | |
1171 | for (const auto &i : items) | |
1172 | i->animate_to_layout_v_offset(); | |
1173 | } | |
1174 | ||
1175 | int View::header_width() const | |
1176 | { | |
1177 | return header_->extended_size_hint().width(); | |
1178 | } | |
1179 | ||
1180 | void View::on_setting_changed(const QString &key, const QVariant &value) | |
1181 | { | |
1182 | GlobalSettings settings; | |
1183 | ||
1184 | if (key == GlobalSettings::Key_View_ColoredBG) { | |
1185 | colored_bg_ = settings.value(GlobalSettings::Key_View_ColoredBG).toBool(); | |
1186 | viewport_->update(); | |
1187 | } | |
1188 | ||
1189 | if ((key == GlobalSettings::Key_View_ShowSamplingPoints) || | |
1190 | (key == GlobalSettings::Key_View_ShowAnalogMinorGrid)) | |
1191 | viewport_->update(); | |
1192 | ||
1193 | if (key == GlobalSettings::Key_View_TriggerIsZeroTime) | |
1194 | on_settingViewTriggerIsZeroTime_changed(value); | |
1195 | ||
1196 | if (key == GlobalSettings::Key_View_SnapDistance) | |
1197 | snap_distance_ = settings.value(GlobalSettings::Key_View_SnapDistance).toInt(); | |
1198 | } | |
1199 | ||
1200 | void View::trigger_event(int segment_id, util::Timestamp location) | |
1201 | { | |
1202 | // TODO This doesn't work if we're showing multiple segments at once | |
1203 | if ((uint32_t)segment_id != current_segment_) | |
1204 | return; | |
1205 | ||
1206 | if (!custom_zero_offset_set_) | |
1207 | reset_zero_position(); | |
1208 | ||
1209 | trigger_markers_.push_back(make_shared<TriggerMarker>(*this, location)); | |
1210 | } | |
1211 | ||
1212 | void View::get_scroll_layout(double &length, Timestamp &offset) const | |
1213 | { | |
1214 | const pair<Timestamp, Timestamp> extents = get_time_extents(); | |
1215 | length = ((extents.second - extents.first) / scale_).convert_to<double>(); | |
1216 | offset = offset_ / scale_; | |
1217 | } | |
1218 | ||
1219 | void View::set_zoom(double scale, int offset) | |
1220 | { | |
1221 | // Reset the "always zoom to fit" feature as the user changed the zoom | |
1222 | always_zoom_to_fit_ = false; | |
1223 | always_zoom_to_fit_changed(false); | |
1224 | ||
1225 | const Timestamp cursor_offset = offset_ + scale_ * offset; | |
1226 | const Timestamp new_scale = max(min(Timestamp(scale), MaxScale), MinScale); | |
1227 | const Timestamp new_offset = cursor_offset - new_scale * offset; | |
1228 | set_scale_offset(new_scale.convert_to<double>(), new_offset); | |
1229 | } | |
1230 | ||
1231 | void View::calculate_tick_spacing() | |
1232 | { | |
1233 | const double SpacingIncrement = 10.0f; | |
1234 | const double MinValueSpacing = 40.0f; | |
1235 | ||
1236 | // Figure out the highest numeric value visible on a label | |
1237 | const QSize areaSize = viewport_->size(); | |
1238 | const Timestamp max_time = max(fabs(offset_), | |
1239 | fabs(offset_ + scale_ * areaSize.width())); | |
1240 | ||
1241 | double min_width = SpacingIncrement; | |
1242 | double label_width, tick_period_width; | |
1243 | ||
1244 | QFontMetrics m(QApplication::font()); | |
1245 | ||
1246 | // Copies of the member variables with the same name, used in the calculation | |
1247 | // and written back afterwards, so that we don't emit signals all the time | |
1248 | // during the calculation. | |
1249 | pv::util::Timestamp tick_period = tick_period_; | |
1250 | pv::util::SIPrefix tick_prefix = tick_prefix_; | |
1251 | unsigned tick_precision = tick_precision_; | |
1252 | ||
1253 | do { | |
1254 | const double min_period = scale_ * min_width; | |
1255 | ||
1256 | const int order = (int)floorf(log10f(min_period)); | |
1257 | const pv::util::Timestamp order_decimal = | |
1258 | pow(pv::util::Timestamp(10), order); | |
1259 | ||
1260 | // Allow for a margin of error so that a scale unit of 1 can be used. | |
1261 | // Otherwise, for a SU of 1 the tick period will almost always be below | |
1262 | // the min_period by a small amount - and thus skipped in favor of 2. | |
1263 | // Note: margin assumes that SU[0] and SU[1] contain the smallest values | |
1264 | double tp_margin = (ScaleUnits[0] + ScaleUnits[1]) / 2.0; | |
1265 | double tp_with_margin; | |
1266 | unsigned int unit = 0; | |
1267 | ||
1268 | do { | |
1269 | tp_with_margin = order_decimal.convert_to<double>() * | |
1270 | (ScaleUnits[unit++] + tp_margin); | |
1271 | } while (tp_with_margin < min_period && unit < countof(ScaleUnits)); | |
1272 | ||
1273 | minor_tick_count_ = (unit == 2) ? 4 : 5; | |
1274 | tick_period = order_decimal * ScaleUnits[unit - 1]; | |
1275 | tick_prefix = static_cast<pv::util::SIPrefix>( | |
1276 | (order - pv::util::exponent(pv::util::SIPrefix::yocto)) / 3); | |
1277 | ||
1278 | // Precision is the number of fractional digits required, not | |
1279 | // taking the prefix into account (and it must never be negative) | |
1280 | tick_precision = max(ceil(log10(1 / tick_period)).convert_to<int>(), 0); | |
1281 | ||
1282 | tick_period_width = (tick_period / scale_).convert_to<double>(); | |
1283 | ||
1284 | const QString label_text = Ruler::format_time_with_distance( | |
1285 | tick_period, max_time, tick_prefix, time_unit_, tick_precision); | |
1286 | ||
1287 | label_width = m.boundingRect(0, 0, INT_MAX, INT_MAX, | |
1288 | Qt::AlignLeft | Qt::AlignTop, label_text).width() + | |
1289 | MinValueSpacing; | |
1290 | ||
1291 | min_width += SpacingIncrement; | |
1292 | } while (tick_period_width < label_width); | |
1293 | ||
1294 | set_tick_period(tick_period); | |
1295 | set_tick_prefix(tick_prefix); | |
1296 | set_tick_precision(tick_precision); | |
1297 | } | |
1298 | ||
1299 | void View::adjust_top_margin() | |
1300 | { | |
1301 | assert(viewport_); | |
1302 | ||
1303 | const QSize areaSize = viewport_->size(); | |
1304 | ||
1305 | const pair<int, int> extents = v_extents(); | |
1306 | const int top_margin = owner_visual_v_offset() + extents.first; | |
1307 | const int trace_bottom = owner_visual_v_offset() + extents.first + extents.second; | |
1308 | ||
1309 | // Do we have empty space at the top while the last trace goes out of screen? | |
1310 | if ((top_margin > 0) && (trace_bottom > areaSize.height())) { | |
1311 | const int trace_height = extents.second - extents.first; | |
1312 | ||
1313 | // Center everything vertically if there is enough space | |
1314 | if (areaSize.height() >= trace_height) | |
1315 | set_v_offset(extents.first - | |
1316 | ((areaSize.height() - trace_height) / 2)); | |
1317 | else | |
1318 | // Remove the top margin to make as many traces fit on screen as possible | |
1319 | set_v_offset(extents.first); | |
1320 | } | |
1321 | } | |
1322 | ||
1323 | void View::update_scroll() | |
1324 | { | |
1325 | assert(viewport_); | |
1326 | QScrollBar *hscrollbar = scrollarea_->horizontalScrollBar(); | |
1327 | QScrollBar *vscrollbar = scrollarea_->verticalScrollBar(); | |
1328 | ||
1329 | const QSize areaSize = viewport_->size(); | |
1330 | ||
1331 | // Set the horizontal scroll bar | |
1332 | double length = 0; | |
1333 | Timestamp offset; | |
1334 | get_scroll_layout(length, offset); | |
1335 | length = max(length - areaSize.width(), 0.0); | |
1336 | ||
1337 | int major_tick_distance = (tick_period_ / scale_).convert_to<int>(); | |
1338 | ||
1339 | hscrollbar->setPageStep(areaSize.width() / 2); | |
1340 | hscrollbar->setSingleStep(major_tick_distance); | |
1341 | ||
1342 | updating_scroll_ = true; | |
1343 | ||
1344 | if (length < MaxScrollValue) { | |
1345 | hscrollbar->setRange(0, length); | |
1346 | hscrollbar->setSliderPosition(offset.convert_to<double>()); | |
1347 | } else { | |
1348 | hscrollbar->setRange(0, MaxScrollValue); | |
1349 | hscrollbar->setSliderPosition( | |
1350 | (offset_ * MaxScrollValue / (scale_ * length)).convert_to<double>()); | |
1351 | } | |
1352 | ||
1353 | updating_scroll_ = false; | |
1354 | ||
1355 | // Set the vertical scrollbar | |
1356 | vscrollbar->setPageStep(areaSize.height()); | |
1357 | vscrollbar->setSingleStep(areaSize.height() / 8); | |
1358 | ||
1359 | const pair<int, int> extents = v_extents(); | |
1360 | ||
1361 | // Don't change the scrollbar range if there are no traces | |
1362 | if (extents.first != extents.second) { | |
1363 | int top_margin = ViewScrollMargin; | |
1364 | int btm_margin = ViewScrollMargin; | |
1365 | ||
1366 | vscrollbar->setRange(extents.first - areaSize.height() + top_margin, | |
1367 | extents.second - btm_margin); | |
1368 | } | |
1369 | ||
1370 | if (scroll_needs_defaults_) { | |
1371 | set_scroll_default(); | |
1372 | scroll_needs_defaults_ = false; | |
1373 | } | |
1374 | } | |
1375 | ||
1376 | void View::reset_scroll() | |
1377 | { | |
1378 | scrollarea_->verticalScrollBar()->setRange(0, 0); | |
1379 | } | |
1380 | ||
1381 | void View::set_scroll_default() | |
1382 | { | |
1383 | assert(viewport_); | |
1384 | ||
1385 | const QSize areaSize = viewport_->size(); | |
1386 | ||
1387 | const pair<int, int> extents = v_extents(); | |
1388 | const int trace_height = extents.second - extents.first; | |
1389 | ||
1390 | // Do all traces fit in the view? | |
1391 | if (areaSize.height() >= trace_height) | |
1392 | // Center all traces vertically | |
1393 | set_v_offset(extents.first - | |
1394 | ((areaSize.height() - trace_height) / 2)); | |
1395 | else | |
1396 | // Put the first trace at the top, letting the bottom ones overflow | |
1397 | set_v_offset(extents.first); | |
1398 | } | |
1399 | ||
1400 | void View::determine_if_header_was_shrunk() | |
1401 | { | |
1402 | const int header_pane_width = | |
1403 | splitter_->sizes().front(); // clazy:exclude=detaching-temporary | |
1404 | ||
1405 | // Allow for a slight margin of error so that we also accept | |
1406 | // slight differences when e.g. a label name change increased | |
1407 | // the overall width | |
1408 | header_was_shrunk_ = (header_pane_width < (header_width() - 10)); | |
1409 | } | |
1410 | ||
1411 | void View::resize_header_to_fit() | |
1412 | { | |
1413 | // Setting the maximum width of the header widget doesn't work as | |
1414 | // expected because the splitter would allow the user to make the | |
1415 | // pane wider than that, creating empty space as a result. | |
1416 | // To make this work, we stricly enforce the maximum width by | |
1417 | // expanding the header unless the user shrunk it on purpose. | |
1418 | // As we're then setting the width of the header pane, we set the | |
1419 | // splitter to the maximum allowed position. | |
1420 | ||
1421 | int splitter_area_width = 0; | |
1422 | for (int w : splitter_->sizes()) // clazy:exclude=range-loop | |
1423 | splitter_area_width += w; | |
1424 | ||
1425 | // Make sure the header has enough horizontal space to show all labels fully | |
1426 | QList<int> pane_sizes; | |
1427 | pane_sizes.push_back(header_->extended_size_hint().width()); | |
1428 | pane_sizes.push_back(splitter_area_width - header_->extended_size_hint().width()); | |
1429 | splitter_->setSizes(pane_sizes); | |
1430 | } | |
1431 | ||
1432 | void View::update_layout() | |
1433 | { | |
1434 | update_scroll(); | |
1435 | ||
1436 | update_view_range_metaobject(); | |
1437 | } | |
1438 | ||
1439 | TraceTreeItemOwner* View::find_prevalent_trace_group( | |
1440 | const shared_ptr<sigrok::ChannelGroup> &group, | |
1441 | const map<shared_ptr<data::SignalBase>, shared_ptr<Signal> > &signal_map) | |
1442 | { | |
1443 | assert(group); | |
1444 | ||
1445 | set<TraceTreeItemOwner*> owners; | |
1446 | vector<TraceTreeItemOwner*> owner_list; | |
1447 | ||
1448 | // Make a set and a list of all the owners | |
1449 | for (const auto& channel : group->channels()) { | |
1450 | for (auto& entry : signal_map) { | |
1451 | if (entry.first->channel() == channel) { | |
1452 | TraceTreeItemOwner *const o = (entry.second)->owner(); | |
1453 | owner_list.push_back(o); | |
1454 | owners.insert(o); | |
1455 | } | |
1456 | } | |
1457 | } | |
1458 | ||
1459 | // Iterate through the list of owners, and find the most prevalent | |
1460 | size_t max_prevalence = 0; | |
1461 | TraceTreeItemOwner *prevalent_owner = nullptr; | |
1462 | for (TraceTreeItemOwner *owner : owners) { | |
1463 | const size_t prevalence = count_if( | |
1464 | owner_list.begin(), owner_list.end(), | |
1465 | [&](TraceTreeItemOwner *o) { return o == owner; }); | |
1466 | if (prevalence > max_prevalence) { | |
1467 | max_prevalence = prevalence; | |
1468 | prevalent_owner = owner; | |
1469 | } | |
1470 | } | |
1471 | ||
1472 | return prevalent_owner; | |
1473 | } | |
1474 | ||
1475 | vector< shared_ptr<Trace> > View::extract_new_traces_for_channels( | |
1476 | const vector< shared_ptr<sigrok::Channel> > &channels, | |
1477 | const map<shared_ptr<data::SignalBase>, shared_ptr<Signal> > &signal_map, | |
1478 | set< shared_ptr<Trace> > &add_list) | |
1479 | { | |
1480 | vector< shared_ptr<Trace> > filtered_traces; | |
1481 | ||
1482 | for (const auto& channel : channels) { | |
1483 | for (auto& entry : signal_map) { | |
1484 | if (entry.first->channel() == channel) { | |
1485 | shared_ptr<Trace> trace = entry.second; | |
1486 | const auto list_iter = add_list.find(trace); | |
1487 | if (list_iter == add_list.end()) | |
1488 | continue; | |
1489 | ||
1490 | filtered_traces.push_back(trace); | |
1491 | add_list.erase(list_iter); | |
1492 | } | |
1493 | } | |
1494 | } | |
1495 | ||
1496 | return filtered_traces; | |
1497 | } | |
1498 | ||
1499 | void View::determine_time_unit() | |
1500 | { | |
1501 | // Check whether we know the sample rate and hence can use time as the unit | |
1502 | if (time_unit_ == util::TimeUnit::Samples) { | |
1503 | // Check all signals but... | |
1504 | for (const shared_ptr<Signal>& signal : signals_) { | |
1505 | const shared_ptr<SignalData> data = signal->data(); | |
1506 | ||
1507 | // ...only check first segment of each | |
1508 | const vector< shared_ptr<Segment> > segments = data->segments(); | |
1509 | if (!segments.empty()) | |
1510 | if (segments[0]->samplerate()) { | |
1511 | set_time_unit(util::TimeUnit::Time); | |
1512 | break; | |
1513 | } | |
1514 | } | |
1515 | } | |
1516 | } | |
1517 | ||
1518 | bool View::eventFilter(QObject *object, QEvent *event) | |
1519 | { | |
1520 | const QEvent::Type type = event->type(); | |
1521 | ||
1522 | if (type == QEvent::MouseMove) { | |
1523 | ||
1524 | if (object) | |
1525 | hover_widget_ = qobject_cast<QWidget*>(object); | |
1526 | ||
1527 | const QMouseEvent *const mouse_event = (QMouseEvent*)event; | |
1528 | if (object == viewport_) | |
1529 | hover_point_ = mouse_event->pos(); | |
1530 | else if (object == ruler_) | |
1531 | hover_point_ = mouse_event->pos(); | |
1532 | else if (object == header_) | |
1533 | hover_point_ = QPoint(0, mouse_event->y()); | |
1534 | else | |
1535 | hover_point_ = QPoint(-1, -1); | |
1536 | ||
1537 | update_hover_point(); | |
1538 | ||
1539 | if (grabbed_widget_) { | |
1540 | int64_t nearest = get_nearest_level_change(hover_point_); | |
1541 | pv::util::Timestamp mouse_time = offset_ + hover_point_.x() * scale_; | |
1542 | ||
1543 | if (nearest == -1) { | |
1544 | grabbed_widget_->set_time(mouse_time); | |
1545 | } else { | |
1546 | grabbed_widget_->set_time(nearest / get_signal_under_mouse_cursor()->base()->get_samplerate()); | |
1547 | } | |
1548 | } | |
1549 | ||
1550 | } else if (type == QEvent::MouseButtonPress) { | |
1551 | grabbed_widget_ = nullptr; | |
1552 | ||
1553 | const QMouseEvent *const mouse_event = (QMouseEvent*)event; | |
1554 | if ((object == viewport_) && (mouse_event->button() & Qt::LeftButton)) { | |
1555 | // Send event to all trace tree items | |
1556 | const vector<shared_ptr<TraceTreeItem>> trace_tree_items( | |
1557 | list_by_type<TraceTreeItem>()); | |
1558 | for (const shared_ptr<TraceTreeItem>& r : trace_tree_items) | |
1559 | r->mouse_left_press_event(mouse_event); | |
1560 | } | |
1561 | } else if (type == QEvent::Leave) { | |
1562 | hover_point_ = QPoint(-1, -1); | |
1563 | update_hover_point(); | |
1564 | } else if (type == QEvent::Show) { | |
1565 | ||
1566 | // This is somewhat of a hack, unfortunately. We cannot use | |
1567 | // set_v_offset() from within restore_settings() as the view | |
1568 | // at that point is neither visible nor properly sized. | |
1569 | // This is the least intrusive workaround I could come up | |
1570 | // with: set the vertical offset (or scroll defaults) when | |
1571 | // the view is shown, which happens after all widgets were | |
1572 | // resized to their final sizes. | |
1573 | update_layout(); | |
1574 | ||
1575 | if (restoring_state_) | |
1576 | determine_if_header_was_shrunk(); | |
1577 | else | |
1578 | resize_header_to_fit(); | |
1579 | ||
1580 | if (scroll_needs_defaults_) { | |
1581 | set_scroll_default(); | |
1582 | scroll_needs_defaults_ = false; | |
1583 | } | |
1584 | ||
1585 | if (restoring_state_) | |
1586 | set_v_offset(saved_v_offset_); | |
1587 | } | |
1588 | ||
1589 | return QObject::eventFilter(object, event); | |
1590 | } | |
1591 | ||
1592 | void View::contextMenuEvent(QContextMenuEvent *event) | |
1593 | { | |
1594 | QPoint pos = event->pos() - QPoint(0, ruler_->sizeHint().height()); | |
1595 | ||
1596 | const shared_ptr<ViewItem> r = viewport_->get_mouse_over_item(pos); | |
1597 | if (!r) | |
1598 | return; | |
1599 | ||
1600 | QMenu *menu = r->create_view_context_menu(this, pos); | |
1601 | if (menu) | |
1602 | menu->popup(event->globalPos()); | |
1603 | } | |
1604 | ||
1605 | void View::resizeEvent(QResizeEvent* event) | |
1606 | { | |
1607 | // Only adjust the top margin if we shrunk vertically | |
1608 | if (event->size().height() < event->oldSize().height()) | |
1609 | adjust_top_margin(); | |
1610 | ||
1611 | update_layout(); | |
1612 | } | |
1613 | ||
1614 | void View::update_view_range_metaobject() const | |
1615 | { | |
1616 | const int w = viewport_->width(); | |
1617 | if (w > 0) { | |
1618 | const double samplerate = session_.get_samplerate(); | |
1619 | // Note: sample_num = time * samplerate | |
1620 | // Note: samples_per_pixel = samplerate * scale | |
1621 | const int64_t start_sample = (offset_ * samplerate).convert_to<int64_t>(); | |
1622 | const int64_t end_sample = (offset_ * samplerate).convert_to<int64_t>() + | |
1623 | (w * session_.get_samplerate() * scale_); | |
1624 | ||
1625 | MetadataObject* md_obj = | |
1626 | session_.metadata_obj_manager()->find_object_by_type(MetadataObjMainViewRange); | |
1627 | ||
1628 | const int64_t old_start_sample = md_obj->value(MetadataValueStartSample).toLongLong(); | |
1629 | const int64_t old_end_sample = md_obj->value(MetadataValueEndSample).toLongLong(); | |
1630 | ||
1631 | if (start_sample != old_start_sample) | |
1632 | md_obj->set_value(MetadataValueStartSample, QVariant((qlonglong)start_sample)); | |
1633 | ||
1634 | if (end_sample != old_end_sample) | |
1635 | md_obj->set_value(MetadataValueEndSample, QVariant((qlonglong)end_sample)); | |
1636 | } | |
1637 | } | |
1638 | ||
1639 | void View::update_hover_point() | |
1640 | { | |
1641 | // Determine signal that the mouse cursor is hovering over | |
1642 | signal_under_mouse_cursor_.reset(); | |
1643 | if (hover_widget_ == this) { | |
1644 | for (const shared_ptr<Signal>& s : signals_) { | |
1645 | const pair<int, int> extents = s->v_extents(); | |
1646 | const int top = s->get_visual_y() + extents.first; | |
1647 | const int btm = s->get_visual_y() + extents.second; | |
1648 | if ((hover_point_.y() >= top) && (hover_point_.y() <= btm) | |
1649 | && s->base()->enabled()) | |
1650 | signal_under_mouse_cursor_ = s; | |
1651 | } | |
1652 | } | |
1653 | ||
1654 | // Update all trace tree items | |
1655 | const vector<shared_ptr<TraceTreeItem>> trace_tree_items( | |
1656 | list_by_type<TraceTreeItem>()); | |
1657 | for (const shared_ptr<TraceTreeItem>& r : trace_tree_items) | |
1658 | r->hover_point_changed(hover_point_); | |
1659 | ||
1660 | // Notify this view's listeners | |
1661 | hover_point_changed(hover_widget_, hover_point_); | |
1662 | ||
1663 | // Hover point is -1 when invalid and 0 for the header | |
1664 | if (hover_point_.x() > 0) { | |
1665 | // Notify global listeners | |
1666 | pv::util::Timestamp mouse_time = offset_ + hover_point_.x() * scale_; | |
1667 | int64_t sample_num = (mouse_time * session_.get_samplerate()).convert_to<int64_t>(); | |
1668 | ||
1669 | MetadataObject* md_obj = | |
1670 | session_.metadata_obj_manager()->find_object_by_type(MetadataObjMousePos); | |
1671 | md_obj->set_value(MetadataValueStartSample, QVariant((qlonglong)sample_num)); | |
1672 | } | |
1673 | } | |
1674 | ||
1675 | void View::row_item_appearance_changed(bool label, bool content) | |
1676 | { | |
1677 | if (label) | |
1678 | header_->update(); | |
1679 | if (content) | |
1680 | viewport_->update(); | |
1681 | } | |
1682 | ||
1683 | void View::time_item_appearance_changed(bool label, bool content) | |
1684 | { | |
1685 | if (label) { | |
1686 | ruler_->update(); | |
1687 | ||
1688 | // Make sure the header pane width is updated, too | |
1689 | update_layout(); | |
1690 | } | |
1691 | ||
1692 | if (content) | |
1693 | viewport_->update(); | |
1694 | } | |
1695 | ||
1696 | void View::extents_changed(bool horz, bool vert) | |
1697 | { | |
1698 | sticky_events_ |= | |
1699 | (horz ? TraceTreeItemHExtentsChanged : 0) | | |
1700 | (vert ? TraceTreeItemVExtentsChanged : 0); | |
1701 | ||
1702 | if (!lazy_event_handler_.isActive()) | |
1703 | lazy_event_handler_.start(); | |
1704 | } | |
1705 | ||
1706 | void View::on_signal_name_changed() | |
1707 | { | |
1708 | if (!header_was_shrunk_) | |
1709 | resize_header_to_fit(); | |
1710 | } | |
1711 | ||
1712 | void View::on_splitter_moved() | |
1713 | { | |
1714 | // The header can only shrink when the splitter is moved manually | |
1715 | determine_if_header_was_shrunk(); | |
1716 | ||
1717 | if (!header_was_shrunk_) | |
1718 | resize_header_to_fit(); | |
1719 | } | |
1720 | ||
1721 | void View::on_zoom_in_shortcut_triggered() | |
1722 | { | |
1723 | zoom(1); | |
1724 | } | |
1725 | ||
1726 | void View::on_zoom_out_shortcut_triggered() | |
1727 | { | |
1728 | zoom(-1); | |
1729 | } | |
1730 | ||
1731 | void View::on_scroll_to_start_shortcut_triggered() | |
1732 | { | |
1733 | set_h_offset(0); | |
1734 | } | |
1735 | ||
1736 | void View::on_scroll_to_end_shortcut_triggered() | |
1737 | { | |
1738 | set_h_offset(get_h_scrollbar_maximum()); | |
1739 | } | |
1740 | ||
1741 | void View::h_scroll_value_changed(int value) | |
1742 | { | |
1743 | if (updating_scroll_) | |
1744 | return; | |
1745 | ||
1746 | // Disable sticky scrolling when user moves the horizontal scroll bar | |
1747 | // during a running acquisition | |
1748 | if (sticky_scrolling_ && (session_.get_capture_state() == Session::Running)) { | |
1749 | sticky_scrolling_ = false; | |
1750 | sticky_scrolling_changed(false); | |
1751 | } | |
1752 | ||
1753 | const int range = scrollarea_->horizontalScrollBar()->maximum(); | |
1754 | if (range < MaxScrollValue) | |
1755 | set_offset(scale_ * value); | |
1756 | else { | |
1757 | double length = 0; | |
1758 | Timestamp offset; | |
1759 | get_scroll_layout(length, offset); | |
1760 | set_offset(scale_ * length * value / MaxScrollValue); | |
1761 | } | |
1762 | ||
1763 | ruler_->update(); | |
1764 | viewport_->update(); | |
1765 | } | |
1766 | ||
1767 | void View::v_scroll_value_changed() | |
1768 | { | |
1769 | header_->update(); | |
1770 | viewport_->update(); | |
1771 | } | |
1772 | ||
1773 | void View::on_grab_ruler(int ruler_id) | |
1774 | { | |
1775 | if (!cursors_shown()) { | |
1776 | center_cursors(); | |
1777 | show_cursors(); | |
1778 | } | |
1779 | ||
1780 | // Release the grabbed widget if its trigger hotkey was pressed twice | |
1781 | if (ruler_id == 1) | |
1782 | grabbed_widget_ = (grabbed_widget_ == cursors_->first().get()) ? | |
1783 | nullptr : cursors_->first().get(); | |
1784 | else | |
1785 | grabbed_widget_ = (grabbed_widget_ == cursors_->second().get()) ? | |
1786 | nullptr : cursors_->second().get(); | |
1787 | ||
1788 | if (grabbed_widget_) | |
1789 | grabbed_widget_->set_time(ruler_->get_absolute_time_from_x_pos( | |
1790 | mapFromGlobal(QCursor::pos()).x() - header_width())); | |
1791 | } | |
1792 | ||
1793 | void View::signals_changed() | |
1794 | { | |
1795 | using sigrok::Channel; | |
1796 | ||
1797 | lock_guard<mutex> lock(signal_mutex_); | |
1798 | ||
1799 | vector< shared_ptr<Channel> > channels; | |
1800 | shared_ptr<sigrok::Device> sr_dev; | |
1801 | bool signals_added_or_removed = false; | |
1802 | ||
1803 | // Do we need to set the vertical scrollbar to its default position later? | |
1804 | // We do if there are no traces, i.e. the scroll bar has no range set | |
1805 | bool reset_scrollbar = | |
1806 | (scrollarea_->verticalScrollBar()->minimum() == | |
1807 | scrollarea_->verticalScrollBar()->maximum()); | |
1808 | ||
1809 | if (!session_.device()) { | |
1810 | reset_scroll(); | |
1811 | signals_.clear(); | |
1812 | } else { | |
1813 | sr_dev = session_.device()->device(); | |
1814 | assert(sr_dev); | |
1815 | channels = sr_dev->channels(); | |
1816 | } | |
1817 | ||
1818 | vector< shared_ptr<TraceTreeItem> > new_top_level_items; | |
1819 | ||
1820 | // Make a list of traces that are being added, and a list of traces | |
1821 | // that are being removed. The set_difference() algorithms require | |
1822 | // both sets to be in the exact same order, which means that PD signals | |
1823 | // must always be last as they interrupt the sort order otherwise | |
1824 | const vector<shared_ptr<Trace>> prev_trace_list = list_by_type<Trace>(); | |
1825 | const set<shared_ptr<Trace>> prev_traces( | |
1826 | prev_trace_list.begin(), prev_trace_list.end()); | |
1827 | ||
1828 | set< shared_ptr<Trace> > traces(signals_.begin(), signals_.end()); | |
1829 | ||
1830 | #ifdef ENABLE_DECODE | |
1831 | traces.insert(decode_traces_.begin(), decode_traces_.end()); | |
1832 | #endif | |
1833 | set< shared_ptr<Trace> > add_traces; | |
1834 | set_difference(traces.begin(), traces.end(), | |
1835 | prev_traces.begin(), prev_traces.end(), | |
1836 | inserter(add_traces, add_traces.begin())); | |
1837 | ||
1838 | set< shared_ptr<Trace> > remove_traces; | |
1839 | set_difference(prev_traces.begin(), prev_traces.end(), | |
1840 | traces.begin(), traces.end(), | |
1841 | inserter(remove_traces, remove_traces.begin())); | |
1842 | ||
1843 | // Make a look-up table of sigrok Channels to pulseview Signals | |
1844 | map<shared_ptr<data::SignalBase>, shared_ptr<Signal> > signal_map; | |
1845 | for (const shared_ptr<Signal>& sig : signals_) | |
1846 | signal_map[sig->base()] = sig; | |
1847 | ||
1848 | // Populate channel groups | |
1849 | if (sr_dev) | |
1850 | for (auto& entry : sr_dev->channel_groups()) { | |
1851 | const shared_ptr<sigrok::ChannelGroup> &group = entry.second; | |
1852 | ||
1853 | if (group->channels().size() <= 1) | |
1854 | continue; | |
1855 | ||
1856 | // Find best trace group to add to | |
1857 | TraceTreeItemOwner *owner = find_prevalent_trace_group( | |
1858 | group, signal_map); | |
1859 | ||
1860 | // If there is no trace group, create one | |
1861 | shared_ptr<TraceGroup> new_trace_group; | |
1862 | if (!owner) { | |
1863 | new_trace_group.reset(new TraceGroup()); | |
1864 | owner = new_trace_group.get(); | |
1865 | } | |
1866 | ||
1867 | // Extract traces for the trace group, removing them from | |
1868 | // the add list | |
1869 | const vector< shared_ptr<Trace> > new_traces_in_group = | |
1870 | extract_new_traces_for_channels(group->channels(), | |
1871 | signal_map, add_traces); | |
1872 | ||
1873 | // Add the traces to the group | |
1874 | const pair<int, int> prev_v_extents = owner->v_extents(); | |
1875 | int offset = prev_v_extents.second - prev_v_extents.first; | |
1876 | for (const shared_ptr<Trace>& trace : new_traces_in_group) { | |
1877 | assert(trace); | |
1878 | owner->add_child_item(trace); | |
1879 | ||
1880 | const pair<int, int> extents = trace->v_extents(); | |
1881 | if (trace->enabled()) | |
1882 | offset += -extents.first; | |
1883 | trace->force_to_v_offset(offset); | |
1884 | if (trace->enabled()) | |
1885 | offset += extents.second; | |
1886 | } | |
1887 | ||
1888 | if (new_trace_group) { | |
1889 | // Assign proper vertical offsets to each channel in the group | |
1890 | new_trace_group->restack_items(); | |
1891 | ||
1892 | // If this is a new group, enqueue it in the new top level | |
1893 | // items list | |
1894 | if (!new_traces_in_group.empty()) | |
1895 | new_top_level_items.push_back(new_trace_group); | |
1896 | } | |
1897 | } | |
1898 | ||
1899 | // Enqueue the remaining logic channels in a group | |
1900 | vector< shared_ptr<Channel> > logic_channels; | |
1901 | copy_if(channels.begin(), channels.end(), back_inserter(logic_channels), | |
1902 | [](const shared_ptr<Channel>& c) { | |
1903 | return c->type() == sigrok::ChannelType::LOGIC; }); | |
1904 | ||
1905 | const vector< shared_ptr<Trace> > non_grouped_logic_signals = | |
1906 | extract_new_traces_for_channels(logic_channels, signal_map, add_traces); | |
1907 | ||
1908 | if (non_grouped_logic_signals.size() > 0) { | |
1909 | const shared_ptr<TraceGroup> non_grouped_trace_group( | |
1910 | make_shared<TraceGroup>()); | |
1911 | for (const shared_ptr<Trace>& trace : non_grouped_logic_signals) | |
1912 | non_grouped_trace_group->add_child_item(trace); | |
1913 | ||
1914 | non_grouped_trace_group->restack_items(); | |
1915 | new_top_level_items.push_back(non_grouped_trace_group); | |
1916 | } | |
1917 | ||
1918 | // Enqueue the remaining channels as free ungrouped traces | |
1919 | const vector< shared_ptr<Trace> > new_top_level_signals = | |
1920 | extract_new_traces_for_channels(channels, signal_map, add_traces); | |
1921 | new_top_level_items.insert(new_top_level_items.end(), | |
1922 | new_top_level_signals.begin(), new_top_level_signals.end()); | |
1923 | ||
1924 | // Enqueue any remaining traces i.e. decode traces | |
1925 | new_top_level_items.insert(new_top_level_items.end(), | |
1926 | add_traces.begin(), add_traces.end()); | |
1927 | ||
1928 | // Remove any removed traces | |
1929 | for (const shared_ptr<Trace>& trace : remove_traces) { | |
1930 | TraceTreeItemOwner *const owner = trace->owner(); | |
1931 | assert(owner); | |
1932 | owner->remove_child_item(trace); | |
1933 | signals_added_or_removed = true; | |
1934 | } | |
1935 | ||
1936 | // Remove any empty trace groups | |
1937 | for (shared_ptr<TraceGroup> group : list_by_type<TraceGroup>()) | |
1938 | if (group->child_items().size() == 0) { | |
1939 | remove_child_item(group); | |
1940 | group.reset(); | |
1941 | } | |
1942 | ||
1943 | // Add and position the pending top levels items | |
1944 | int offset = v_extents().second; | |
1945 | for (shared_ptr<TraceTreeItem> item : new_top_level_items) { | |
1946 | // items may already have gained an owner when they were added to a group above | |
1947 | if (item->owner()) | |
1948 | continue; | |
1949 | ||
1950 | add_child_item(item); | |
1951 | ||
1952 | // Position the item after the last item or at the top if there is none | |
1953 | const pair<int, int> extents = item->v_extents(); | |
1954 | ||
1955 | if (item->enabled()) | |
1956 | offset += -extents.first; | |
1957 | ||
1958 | item->force_to_v_offset(offset); | |
1959 | ||
1960 | if (item->enabled()) | |
1961 | offset += extents.second; | |
1962 | signals_added_or_removed = true; | |
1963 | } | |
1964 | ||
1965 | ||
1966 | if (signals_added_or_removed && !header_was_shrunk_) | |
1967 | resize_header_to_fit(); | |
1968 | ||
1969 | update_layout(); | |
1970 | ||
1971 | header_->update(); | |
1972 | viewport_->update(); | |
1973 | ||
1974 | if (reset_scrollbar) | |
1975 | set_scroll_default(); | |
1976 | } | |
1977 | ||
1978 | void View::capture_state_updated(int state) | |
1979 | { | |
1980 | GlobalSettings settings; | |
1981 | ||
1982 | if (state == Session::Running) { | |
1983 | set_time_unit(util::TimeUnit::Samples); | |
1984 | ||
1985 | trigger_markers_.clear(); | |
1986 | if (!custom_zero_offset_set_) | |
1987 | set_zero_position(0); | |
1988 | ||
1989 | scale_at_acq_start_ = scale_; | |
1990 | offset_at_acq_start_ = offset_; | |
1991 | ||
1992 | // Activate "always zoom to fit" if the setting is enabled and we're | |
1993 | // the main view of this session (other trace views may be used for | |
1994 | // zooming and we don't want to mess them up) | |
1995 | bool state = settings.value(GlobalSettings::Key_View_ZoomToFitDuringAcq).toBool(); | |
1996 | if (is_main_view_ && state && !restoring_state_) { | |
1997 | always_zoom_to_fit_ = true; | |
1998 | always_zoom_to_fit_changed(always_zoom_to_fit_); | |
1999 | } | |
2000 | ||
2001 | // Enable sticky scrolling if the setting is enabled | |
2002 | sticky_scrolling_ = !restoring_state_ && | |
2003 | settings.value(GlobalSettings::Key_View_StickyScrolling).toBool(); | |
2004 | ||
2005 | // Reset all traces to segment 0 | |
2006 | current_segment_ = 0; | |
2007 | set_current_segment(current_segment_); | |
2008 | } | |
2009 | ||
2010 | if (state == Session::Stopped) { | |
2011 | // After acquisition has stopped we need to re-calculate the ticks once | |
2012 | // as it's otherwise done when the user pans or zooms, which is too late | |
2013 | calculate_tick_spacing(); | |
2014 | ||
2015 | // Reset "always zoom to fit", the acquisition has stopped | |
2016 | if (always_zoom_to_fit_) { | |
2017 | // Perform a final zoom-to-fit before disabling | |
2018 | zoom_fit(always_zoom_to_fit_); | |
2019 | always_zoom_to_fit_ = false; | |
2020 | always_zoom_to_fit_changed(always_zoom_to_fit_); | |
2021 | } | |
2022 | ||
2023 | bool zoom_to_fit_after_acq = | |
2024 | settings.value(GlobalSettings::Key_View_ZoomToFitAfterAcq).toBool(); | |
2025 | ||
2026 | // Only perform zoom-to-fit if the user hasn't altered the viewport and | |
2027 | // we didn't restore settings in the meanwhile | |
2028 | if (zoom_to_fit_after_acq && | |
2029 | !restoring_state_ && | |
2030 | (scale_ == scale_at_acq_start_) && | |
2031 | (sticky_scrolling_ || (offset_ == offset_at_acq_start_))) { | |
2032 | zoom_fit(false); // We're stopped, so the GUI state doesn't matter | |
2033 | } | |
2034 | ||
2035 | restoring_state_ = false; | |
2036 | } | |
2037 | } | |
2038 | ||
2039 | void View::on_new_segment(int new_segment_id) | |
2040 | { | |
2041 | on_segment_changed(new_segment_id); | |
2042 | } | |
2043 | ||
2044 | void View::on_segment_completed(int segment_id) | |
2045 | { | |
2046 | on_segment_changed(segment_id); | |
2047 | } | |
2048 | ||
2049 | void View::on_segment_changed(int segment) | |
2050 | { | |
2051 | switch (segment_display_mode_) { | |
2052 | case Trace::ShowLastSegmentOnly: | |
2053 | case Trace::ShowSingleSegmentOnly: | |
2054 | set_current_segment(segment); | |
2055 | break; | |
2056 | ||
2057 | case Trace::ShowLastCompleteSegmentOnly: | |
2058 | // Only update if all segments are complete | |
2059 | if (session_.all_segments_complete(segment)) | |
2060 | set_current_segment(segment); | |
2061 | break; | |
2062 | ||
2063 | case Trace::ShowAllSegments: | |
2064 | case Trace::ShowAccumulatedIntensity: | |
2065 | default: | |
2066 | break; | |
2067 | } | |
2068 | } | |
2069 | ||
2070 | void View::on_settingViewTriggerIsZeroTime_changed(const QVariant new_value) | |
2071 | { | |
2072 | (void)new_value; | |
2073 | ||
2074 | if (!custom_zero_offset_set_) | |
2075 | reset_zero_position(); | |
2076 | } | |
2077 | ||
2078 | void View::perform_delayed_view_update() | |
2079 | { | |
2080 | if (always_zoom_to_fit_) { | |
2081 | zoom_fit(true); | |
2082 | } else if (sticky_scrolling_) { | |
2083 | // Make right side of the view sticky | |
2084 | double length = 0; | |
2085 | Timestamp offset; | |
2086 | get_scroll_layout(length, offset); | |
2087 | ||
2088 | const QSize areaSize = viewport_->size(); | |
2089 | length = max(length - areaSize.width(), 0.0); | |
2090 | ||
2091 | set_offset(scale_ * length); | |
2092 | } | |
2093 | ||
2094 | determine_time_unit(); | |
2095 | update_scroll(); | |
2096 | ruler_->update(); | |
2097 | viewport_->update(); | |
2098 | } | |
2099 | ||
2100 | void View::process_sticky_events() | |
2101 | { | |
2102 | if (sticky_events_ & TraceTreeItemHExtentsChanged) | |
2103 | update_layout(); | |
2104 | if (sticky_events_ & TraceTreeItemVExtentsChanged) { | |
2105 | restack_all_trace_tree_items(); | |
2106 | update_scroll(); | |
2107 | } | |
2108 | ||
2109 | // Clear the sticky events | |
2110 | sticky_events_ = 0; | |
2111 | } | |
2112 | ||
2113 | } // namespace trace | |
2114 | } // namespace views | |
2115 | } // namespace pv |