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adb4b10c | 1 | /* |
b3f22de0 | 2 | * This file is part of the PulseView project. |
adb4b10c JH |
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, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
269528f5 | 21 | #ifdef ENABLE_DECODE |
4e5a4405 | 22 | #include <libsigrokdecode/libsigrokdecode.h> |
269528f5 | 23 | #endif |
4e5a4405 | 24 | |
361c560e JH |
25 | #include <extdef.h> |
26 | ||
cf124e47 | 27 | #include <algorithm> |
c3a740dd JH |
28 | #include <cassert> |
29 | #include <climits> | |
30 | #include <cmath> | |
cf124e47 | 31 | #include <iterator> |
c3a740dd | 32 | #include <mutex> |
7ff0145f | 33 | #include <unordered_set> |
adb4b10c | 34 | |
361c560e | 35 | #include <QApplication> |
adb4b10c | 36 | #include <QEvent> |
361c560e | 37 | #include <QFontMetrics> |
cbd80f64 | 38 | #include <QMouseEvent> |
adb4b10c JH |
39 | #include <QScrollBar> |
40 | ||
fe3a1c21 | 41 | #include <libsigrokcxx/libsigrokcxx.hpp> |
448a72cf | 42 | |
2acdb232 JH |
43 | #include "decodetrace.hpp" |
44 | #include "header.hpp" | |
45 | #include "logicsignal.hpp" | |
46 | #include "ruler.hpp" | |
47 | #include "signal.hpp" | |
48 | #include "tracegroup.hpp" | |
49 | #include "view.hpp" | |
50 | #include "viewport.hpp" | |
adb4b10c | 51 | |
f65cd27b | 52 | #include "pv/session.hpp" |
da30ecb7 | 53 | #include "pv/devices/device.hpp" |
2acdb232 | 54 | #include "pv/data/logic.hpp" |
f3d66e52 | 55 | #include "pv/data/logicsegment.hpp" |
361c560e | 56 | #include "pv/util.hpp" |
adb4b10c | 57 | |
aca64cac JH |
58 | using boost::shared_lock; |
59 | using boost::shared_mutex; | |
361c560e | 60 | |
1bc6525b | 61 | using pv::data::SignalData; |
f3d66e52 | 62 | using pv::data::Segment; |
361c560e | 63 | using pv::util::format_time; |
ef454ad5 | 64 | using pv::util::TimeUnit; |
361c560e | 65 | |
819f4c25 | 66 | using std::deque; |
448a72cf | 67 | using std::dynamic_pointer_cast; |
cf124e47 | 68 | using std::inserter; |
819f4c25 | 69 | using std::list; |
c3a740dd | 70 | using std::lock_guard; |
819f4c25 | 71 | using std::max; |
1bc6525b | 72 | using std::make_pair; |
819f4c25 | 73 | using std::min; |
1bc6525b | 74 | using std::pair; |
819f4c25 | 75 | using std::set; |
cf124e47 | 76 | using std::set_difference; |
f9abf97e | 77 | using std::shared_ptr; |
448a72cf | 78 | using std::unordered_map; |
7ff0145f | 79 | using std::unordered_set; |
819f4c25 | 80 | using std::vector; |
f9abf97e | 81 | using std::weak_ptr; |
adb4b10c | 82 | |
cdf7bea7 JH |
83 | namespace pv { |
84 | namespace view { | |
adb4b10c | 85 | |
cdf7bea7 | 86 | const double View::MaxScale = 1e9; |
818f6179 | 87 | const double View::MinScale = 1e-12; |
adb4b10c | 88 | |
f25770e2 | 89 | const int View::MaxScrollValue = INT_MAX / 2; |
ce11b2ea | 90 | const int View::MaxViewAutoUpdateRate = 25; // No more than 25 Hz with sticky scrolling |
f25770e2 | 91 | |
361c560e JH |
92 | const int View::ScaleUnits[3] = {1, 2, 5}; |
93 | ||
2b81ae46 | 94 | View::View(Session &session, QWidget *parent) : |
adb4b10c | 95 | QAbstractScrollArea(parent), |
8dbbc7f0 JH |
96 | session_(session), |
97 | viewport_(new Viewport(*this)), | |
98 | ruler_(new Ruler(*this)), | |
8dbbc7f0 | 99 | header_(new Header(*this)), |
c0100b55 | 100 | scale_(1e-3), |
8dbbc7f0 | 101 | offset_(0), |
8dbbc7f0 | 102 | updating_scroll_(false), |
c7b03d9d | 103 | sticky_scrolling_(false), // Default setting is set in MainWindow::setup_ui() |
ce11b2ea | 104 | always_zoom_to_fit_(false), |
361c560e JH |
105 | tick_period_(0.0), |
106 | tick_prefix_(0), | |
d40f4db7 | 107 | tick_precision_(0), |
ef454ad5 | 108 | time_unit_(util::Time), |
8dbbc7f0 | 109 | show_cursors_(false), |
5c5ce757 | 110 | cursors_(new CursorPair(*this)), |
8914fe79 | 111 | next_flag_text_('A'), |
8dbbc7f0 | 112 | hover_point_(-1, -1) |
adb4b10c | 113 | { |
b16907d3 JH |
114 | connect(horizontalScrollBar(), SIGNAL(valueChanged(int)), |
115 | this, SLOT(h_scroll_value_changed(int))); | |
adb4b10c | 116 | connect(verticalScrollBar(), SIGNAL(valueChanged(int)), |
f8400017 | 117 | this, SLOT(v_scroll_value_changed())); |
69dd2b03 | 118 | |
8dbbc7f0 | 119 | connect(&session_, SIGNAL(signals_changed()), |
69dd2b03 | 120 | this, SLOT(signals_changed())); |
8dbbc7f0 | 121 | connect(&session_, SIGNAL(capture_state_changed(int)), |
7ee199a7 | 122 | this, SLOT(capture_state_updated(int))); |
8dbbc7f0 | 123 | connect(&session_, SIGNAL(data_received()), |
1f374035 | 124 | this, SLOT(data_updated())); |
8dbbc7f0 | 125 | connect(&session_, SIGNAL(frame_ended()), |
adb4b10c | 126 | this, SLOT(data_updated())); |
1d8dca91 | 127 | |
8dbbc7f0 | 128 | connect(header_, SIGNAL(selection_changed()), |
819e2e95 JH |
129 | ruler_, SLOT(clear_selection())); |
130 | connect(ruler_, SIGNAL(selection_changed()), | |
8dbbc7f0 | 131 | header_, SLOT(clear_selection())); |
17348f85 | 132 | |
8dbbc7f0 | 133 | connect(header_, SIGNAL(selection_changed()), |
8b454527 | 134 | this, SIGNAL(selection_changed())); |
819e2e95 | 135 | connect(ruler_, SIGNAL(selection_changed()), |
8b454527 JH |
136 | this, SIGNAL(selection_changed())); |
137 | ||
33c62f44 JH |
138 | connect(this, SIGNAL(hover_point_changed()), |
139 | this, SLOT(on_hover_point_changed())); | |
140 | ||
8dbbc7f0 | 141 | connect(&lazy_event_handler_, SIGNAL(timeout()), |
32218d3e | 142 | this, SLOT(process_sticky_events())); |
8dbbc7f0 | 143 | lazy_event_handler_.setSingleShot(true); |
32218d3e | 144 | |
c7b03d9d SA |
145 | connect(&delayed_view_updater_, SIGNAL(timeout()), |
146 | this, SLOT(perform_delayed_view_update())); | |
147 | delayed_view_updater_.setSingleShot(true); | |
148 | delayed_view_updater_.setInterval(1000 / MaxViewAutoUpdateRate); | |
149 | ||
8dbbc7f0 | 150 | setViewport(viewport_); |
cbd80f64 | 151 | |
8dbbc7f0 JH |
152 | viewport_->installEventFilter(this); |
153 | ruler_->installEventFilter(this); | |
8dbbc7f0 | 154 | header_->installEventFilter(this); |
d873f4d6 | 155 | |
9f46d905 JH |
156 | // Trigger the initial event manually. The default device has signals |
157 | // which were created before this object came into being | |
d873f4d6 | 158 | signals_changed(); |
84a0d458 | 159 | |
512bfc56 | 160 | // make sure the transparent widgets are on the top |
819e2e95 | 161 | ruler_->raise(); |
8dbbc7f0 | 162 | header_->raise(); |
361c560e JH |
163 | |
164 | // Update the zoom state | |
165 | calculate_tick_spacing(); | |
adb4b10c JH |
166 | } |
167 | ||
2b81ae46 | 168 | Session& View::session() |
1d19ef83 | 169 | { |
8dbbc7f0 | 170 | return session_; |
1d19ef83 JH |
171 | } |
172 | ||
2b81ae46 | 173 | const Session& View::session() const |
38eeddea | 174 | { |
8dbbc7f0 | 175 | return session_; |
38eeddea JH |
176 | } |
177 | ||
eae6e30a JH |
178 | View* View::view() |
179 | { | |
180 | return this; | |
181 | } | |
182 | ||
183 | const View* View::view() const | |
184 | { | |
185 | return this; | |
186 | } | |
187 | ||
2ae445ba SA |
188 | Viewport* View::viewport() |
189 | { | |
8dbbc7f0 | 190 | return viewport_; |
2ae445ba SA |
191 | } |
192 | ||
193 | const Viewport* View::viewport() const | |
194 | { | |
8dbbc7f0 | 195 | return viewport_; |
2ae445ba SA |
196 | } |
197 | ||
2496bf45 JH |
198 | vector< shared_ptr<TimeItem> > View::time_items() const |
199 | { | |
8914fe79 JH |
200 | const vector<shared_ptr<Flag>> f(flags()); |
201 | vector<shared_ptr<TimeItem>> items(f.begin(), f.end()); | |
5a3e53f6 | 202 | items.push_back(cursors_); |
5c5ce757 JH |
203 | items.push_back(cursors_->first()); |
204 | items.push_back(cursors_->second()); | |
2496bf45 JH |
205 | return items; |
206 | } | |
207 | ||
cdf7bea7 | 208 | double View::scale() const |
adb4b10c | 209 | { |
8dbbc7f0 | 210 | return scale_; |
adb4b10c JH |
211 | } |
212 | ||
cdf7bea7 | 213 | double View::offset() const |
adb4b10c | 214 | { |
8dbbc7f0 | 215 | return offset_; |
adb4b10c JH |
216 | } |
217 | ||
7ff0145f | 218 | int View::owner_visual_v_offset() const |
adb4b10c | 219 | { |
f8400017 | 220 | return -verticalScrollBar()->sliderPosition(); |
adb4b10c JH |
221 | } |
222 | ||
4d476647 JH |
223 | void View::set_v_offset(int offset) |
224 | { | |
225 | verticalScrollBar()->setSliderPosition(offset); | |
226 | header_->update(); | |
227 | viewport_->update(); | |
228 | } | |
229 | ||
3e769a37 JH |
230 | unsigned int View::depth() const |
231 | { | |
232 | return 0; | |
233 | } | |
234 | ||
361c560e JH |
235 | unsigned int View::tick_prefix() const |
236 | { | |
237 | return tick_prefix_; | |
238 | } | |
239 | ||
d40f4db7 SA |
240 | unsigned int View::tick_precision() const |
241 | { | |
242 | return tick_precision_; | |
243 | } | |
244 | ||
361c560e JH |
245 | double View::tick_period() const |
246 | { | |
247 | return tick_period_; | |
248 | } | |
249 | ||
ef454ad5 SA |
250 | TimeUnit View::time_unit() const |
251 | { | |
252 | return time_unit_; | |
253 | } | |
254 | ||
cdf7bea7 | 255 | void View::zoom(double steps) |
adb4b10c | 256 | { |
8dbbc7f0 | 257 | zoom(steps, viewport_->width() / 2); |
adb4b10c JH |
258 | } |
259 | ||
17c0f398 JH |
260 | void View::zoom(double steps, int offset) |
261 | { | |
8dbbc7f0 | 262 | set_zoom(scale_ * pow(3.0/2.0, -steps), offset); |
17c0f398 JH |
263 | } |
264 | ||
ce11b2ea | 265 | void View::zoom_fit(bool gui_state) |
ca46b534 | 266 | { |
ce11b2ea SA |
267 | // Act as one-shot when stopped, toggle along with the GUI otherwise |
268 | if (session_.get_capture_state() == Session::Stopped) { | |
269 | always_zoom_to_fit_ = false; | |
270 | always_zoom_to_fit_changed(false); | |
271 | } else { | |
272 | always_zoom_to_fit_ = gui_state; | |
273 | always_zoom_to_fit_changed(gui_state); | |
274 | } | |
275 | ||
1bc6525b JH |
276 | const pair<double, double> extents = get_time_extents(); |
277 | const double delta = extents.second - extents.first; | |
278 | if (delta < 1e-12) | |
ca46b534 JH |
279 | return; |
280 | ||
8dbbc7f0 JH |
281 | assert(viewport_); |
282 | const int w = viewport_->width(); | |
ca46b534 JH |
283 | if (w <= 0) |
284 | return; | |
285 | ||
78311127 JH |
286 | const double scale = max(min(delta / w, MaxScale), MinScale); |
287 | set_scale_offset(scale, extents.first); | |
ca46b534 JH |
288 | } |
289 | ||
d1e7d82c JH |
290 | void View::zoom_one_to_one() |
291 | { | |
292 | using pv::data::SignalData; | |
293 | ||
d1e7d82c | 294 | // Make a set of all the visible data objects |
0fc664a9 | 295 | set< shared_ptr<SignalData> > visible_data = get_visible_data(); |
d1e7d82c JH |
296 | if (visible_data.empty()) |
297 | return; | |
298 | ||
299 | double samplerate = 0.0; | |
d9aecf1f | 300 | for (const shared_ptr<SignalData> d : visible_data) { |
d1e7d82c | 301 | assert(d); |
f3d66e52 JH |
302 | const vector< shared_ptr<Segment> > segments = |
303 | d->segments(); | |
304 | for (const shared_ptr<Segment> &s : segments) | |
ff008de6 | 305 | samplerate = max(samplerate, s->samplerate()); |
d1e7d82c JH |
306 | } |
307 | ||
308 | if (samplerate == 0.0) | |
309 | return; | |
310 | ||
8dbbc7f0 JH |
311 | assert(viewport_); |
312 | const int w = viewport_->width(); | |
d1e7d82c JH |
313 | if (w <= 0) |
314 | return; | |
315 | ||
316 | set_zoom(1.0 / samplerate, w / 2); | |
317 | } | |
318 | ||
cdf7bea7 | 319 | void View::set_scale_offset(double scale, double offset) |
adb4b10c | 320 | { |
ce11b2ea SA |
321 | // Disable sticky scrolling / always zoom to fit when acquisition runs |
322 | // and user drags the viewport | |
c7b03d9d | 323 | if ((scale_ == scale) && (offset_ != offset) && |
ce11b2ea SA |
324 | (session_.get_capture_state() == Session::Running)) { |
325 | ||
326 | if (sticky_scrolling_) { | |
327 | sticky_scrolling_ = false; | |
328 | sticky_scrolling_changed(false); | |
329 | } | |
330 | ||
331 | if (always_zoom_to_fit_) { | |
332 | always_zoom_to_fit_ = false; | |
333 | always_zoom_to_fit_changed(false); | |
334 | } | |
c7b03d9d SA |
335 | } |
336 | ||
8dbbc7f0 JH |
337 | scale_ = scale; |
338 | offset_ = offset; | |
ccdd3ef5 | 339 | |
361c560e JH |
340 | calculate_tick_spacing(); |
341 | ||
adb4b10c | 342 | update_scroll(); |
8dbbc7f0 | 343 | ruler_->update(); |
8dbbc7f0 | 344 | viewport_->update(); |
e0fc5810 | 345 | scale_offset_changed(); |
adb4b10c JH |
346 | } |
347 | ||
1bc6525b JH |
348 | set< shared_ptr<SignalData> > View::get_visible_data() const |
349 | { | |
aca64cac | 350 | shared_lock<shared_mutex> lock(session().signals_mutex()); |
78b0af3e | 351 | const unordered_set< shared_ptr<Signal> > &sigs(session().signals()); |
1bc6525b JH |
352 | |
353 | // Make a set of all the visible data objects | |
354 | set< shared_ptr<SignalData> > visible_data; | |
d9aecf1f | 355 | for (const shared_ptr<Signal> sig : sigs) |
1bc6525b JH |
356 | if (sig->enabled()) |
357 | visible_data.insert(sig->data()); | |
358 | ||
359 | return visible_data; | |
360 | } | |
361 | ||
362 | pair<double, double> View::get_time_extents() const | |
363 | { | |
1bc6525b | 364 | double left_time = DBL_MAX, right_time = DBL_MIN; |
7f4038d6 | 365 | const set< shared_ptr<SignalData> > visible_data = get_visible_data(); |
d9aecf1f | 366 | for (const shared_ptr<SignalData> d : visible_data) |
1bc6525b | 367 | { |
f3d66e52 JH |
368 | const vector< shared_ptr<Segment> > segments = |
369 | d->segments(); | |
370 | for (const shared_ptr<Segment> &s : segments) { | |
ff008de6 JH |
371 | double samplerate = s->samplerate(); |
372 | samplerate = (samplerate <= 0.0) ? 1.0 : samplerate; | |
373 | ||
7f4038d6 JH |
374 | const double start_time = s->start_time(); |
375 | left_time = min(left_time, start_time); | |
376 | right_time = max(right_time, start_time + | |
e45b13b5 | 377 | d->max_sample_count() / samplerate); |
7f4038d6 | 378 | } |
1bc6525b JH |
379 | } |
380 | ||
7f4038d6 JH |
381 | if (left_time == DBL_MAX && right_time == DBL_MIN) |
382 | return make_pair(0.0, 0.0); | |
383 | ||
1bc6525b JH |
384 | assert(left_time < right_time); |
385 | return make_pair(left_time, right_time); | |
386 | } | |
387 | ||
c7b03d9d SA |
388 | void View::enable_sticky_scrolling(bool state) |
389 | { | |
390 | sticky_scrolling_ = state; | |
391 | } | |
392 | ||
f76af637 JH |
393 | bool View::cursors_shown() const |
394 | { | |
8dbbc7f0 | 395 | return show_cursors_; |
f76af637 JH |
396 | } |
397 | ||
398 | void View::show_cursors(bool show) | |
399 | { | |
8dbbc7f0 | 400 | show_cursors_ = show; |
819e2e95 | 401 | ruler_->update(); |
8dbbc7f0 | 402 | viewport_->update(); |
f76af637 JH |
403 | } |
404 | ||
b4d91e56 JH |
405 | void View::centre_cursors() |
406 | { | |
8dbbc7f0 | 407 | const double time_width = scale_ * viewport_->width(); |
5c5ce757 JH |
408 | cursors_->first()->set_time(offset_ + time_width * 0.4); |
409 | cursors_->second()->set_time(offset_ + time_width * 0.6); | |
819e2e95 | 410 | ruler_->update(); |
8dbbc7f0 | 411 | viewport_->update(); |
b4d91e56 JH |
412 | } |
413 | ||
5c5ce757 | 414 | std::shared_ptr<CursorPair> View::cursors() const |
58864c5c | 415 | { |
8dbbc7f0 | 416 | return cursors_; |
58864c5c JH |
417 | } |
418 | ||
8914fe79 JH |
419 | void View::add_flag(double time) |
420 | { | |
421 | flags_.push_back(shared_ptr<Flag>(new Flag(*this, time, | |
422 | QString("%1").arg(next_flag_text_)))); | |
423 | next_flag_text_ = (next_flag_text_ >= 'Z') ? 'A' : | |
424 | (next_flag_text_ + 1); | |
425 | time_item_appearance_changed(true, true); | |
426 | } | |
427 | ||
428 | void View::remove_flag(std::shared_ptr<Flag> flag) | |
429 | { | |
430 | flags_.remove(flag); | |
431 | time_item_appearance_changed(true, true); | |
432 | } | |
433 | ||
434 | vector< std::shared_ptr<Flag> > View::flags() const | |
435 | { | |
436 | vector< std::shared_ptr<Flag> > flags(flags_.begin(), flags_.end()); | |
437 | stable_sort(flags.begin(), flags.end(), | |
438 | [](const shared_ptr<Flag> &a, const shared_ptr<Flag> &b) { | |
439 | return a->time() < b->time(); | |
440 | }); | |
441 | ||
442 | return flags; | |
443 | } | |
444 | ||
cbd80f64 JH |
445 | const QPoint& View::hover_point() const |
446 | { | |
8dbbc7f0 | 447 | return hover_point_; |
cbd80f64 JH |
448 | } |
449 | ||
9cef9567 JH |
450 | void View::update_viewport() |
451 | { | |
8dbbc7f0 JH |
452 | assert(viewport_); |
453 | viewport_->update(); | |
454 | header_->update(); | |
7ff0145f JH |
455 | } |
456 | ||
457 | void View::restack_all_row_items() | |
458 | { | |
873cbed0 JH |
459 | // Make a list of owners that is sorted from deepest first |
460 | const auto owners = list_row_item_owners(); | |
7ff0145f JH |
461 | vector< RowItemOwner* > sorted_owners(owners.begin(), owners.end()); |
462 | sort(sorted_owners.begin(), sorted_owners.end(), | |
463 | [](const RowItemOwner* a, const RowItemOwner *b) { | |
464 | return a->depth() > b->depth(); }); | |
465 | ||
466 | // Restack the items recursively | |
467 | for (auto &o : sorted_owners) | |
468 | o->restack_items(); | |
469 | ||
470 | // Animate the items to their destination | |
471 | for (const auto &r : *this) | |
472 | r->animate_to_layout_v_offset(); | |
9cef9567 JH |
473 | } |
474 | ||
f25770e2 JH |
475 | void View::get_scroll_layout(double &length, double &offset) const |
476 | { | |
1bc6525b | 477 | const pair<double, double> extents = get_time_extents(); |
8dbbc7f0 JH |
478 | length = (extents.second - extents.first) / scale_; |
479 | offset = offset_ / scale_; | |
f25770e2 JH |
480 | } |
481 | ||
d1e7d82c JH |
482 | void View::set_zoom(double scale, int offset) |
483 | { | |
ce11b2ea SA |
484 | // Reset the "always zoom to fit" feature as the user changed the zoom |
485 | always_zoom_to_fit_ = false; | |
486 | always_zoom_to_fit_changed(false); | |
487 | ||
8dbbc7f0 | 488 | const double cursor_offset = offset_ + scale_ * offset; |
d1e7d82c JH |
489 | const double new_scale = max(min(scale, MaxScale), MinScale); |
490 | const double new_offset = cursor_offset - new_scale * offset; | |
491 | set_scale_offset(new_scale, new_offset); | |
492 | } | |
493 | ||
361c560e JH |
494 | void View::calculate_tick_spacing() |
495 | { | |
8a1bc087 SA |
496 | const double SpacingIncrement = 10.0f; |
497 | const double MinValueSpacing = 25.0f; | |
361c560e | 498 | |
1e124d4b SA |
499 | // Figure out the highest numeric value visible on a label |
500 | const QSize areaSize = viewport_->size(); | |
501 | const double max_time = max(fabs(offset_), | |
502 | fabs(offset_ + scale_ * areaSize.width())); | |
503 | ||
d40f4db7 SA |
504 | double min_width = SpacingIncrement; |
505 | double label_width, tick_period_width; | |
361c560e JH |
506 | |
507 | QFontMetrics m(QApplication::font()); | |
508 | ||
509 | do { | |
510 | const double min_period = scale_ * min_width; | |
511 | ||
512 | const int order = (int)floorf(log10f(min_period)); | |
513 | const double order_decimal = pow(10.0, order); | |
514 | ||
8a1bc087 SA |
515 | // Allow for a margin of error so that a scale unit of 1 can be used. |
516 | // Otherwise, for a SU of 1 the tick period will almost always be below | |
517 | // the min_period by a small amount - and thus skipped in favor of 2. | |
518 | // Note: margin assumes that SU[0] and SU[1] contain the smallest values | |
519 | double tp_margin = (ScaleUnits[0] + ScaleUnits[1]) / 2.0; | |
520 | double tp_with_margin; | |
361c560e JH |
521 | unsigned int unit = 0; |
522 | ||
523 | do { | |
8a1bc087 SA |
524 | tp_with_margin = order_decimal * (ScaleUnits[unit++] + tp_margin); |
525 | } while (tp_with_margin < min_period && unit < countof(ScaleUnits)); | |
361c560e | 526 | |
8a1bc087 | 527 | tick_period_ = order_decimal * ScaleUnits[unit - 1]; |
361c560e JH |
528 | tick_prefix_ = (order - pv::util::FirstSIPrefixPower) / 3; |
529 | ||
d40f4db7 SA |
530 | // Precision is the number of fractional digits required, not |
531 | // taking the prefix into account (and it must never be negative) | |
532 | tick_precision_ = std::max((int)ceil(log10f(1 / tick_period_)), 0); | |
533 | ||
534 | tick_period_width = tick_period_ / scale_; | |
535 | ||
536 | const QString label_text = | |
1e124d4b | 537 | format_time(max_time, tick_prefix_, time_unit_, tick_precision_); |
d40f4db7 SA |
538 | |
539 | label_width = m.boundingRect(0, 0, INT_MAX, INT_MAX, | |
540 | Qt::AlignLeft | Qt::AlignTop, label_text).width() + | |
361c560e JH |
541 | MinValueSpacing; |
542 | ||
543 | min_width += SpacingIncrement; | |
544 | ||
d40f4db7 | 545 | } while (tick_period_width < label_width); |
361c560e JH |
546 | } |
547 | ||
cdf7bea7 | 548 | void View::update_scroll() |
adb4b10c | 549 | { |
8dbbc7f0 | 550 | assert(viewport_); |
adb4b10c | 551 | |
8dbbc7f0 | 552 | const QSize areaSize = viewport_->size(); |
adb4b10c JH |
553 | |
554 | // Set the horizontal scroll bar | |
555 | double length = 0, offset = 0; | |
f25770e2 JH |
556 | get_scroll_layout(length, offset); |
557 | length = max(length - areaSize.width(), 0.0); | |
adb4b10c | 558 | |
d7aae647 SA |
559 | int major_tick_distance = tick_period_ / scale_; |
560 | ||
b4ef7f2a | 561 | horizontalScrollBar()->setPageStep(areaSize.width() / 2); |
d7aae647 | 562 | horizontalScrollBar()->setSingleStep(major_tick_distance); |
f25770e2 | 563 | |
8dbbc7f0 | 564 | updating_scroll_ = true; |
528bd8a1 | 565 | |
333d5bbc | 566 | if (length < MaxScrollValue) { |
f25770e2 JH |
567 | horizontalScrollBar()->setRange(0, length); |
568 | horizontalScrollBar()->setSliderPosition(offset); | |
569 | } else { | |
570 | horizontalScrollBar()->setRange(0, MaxScrollValue); | |
571 | horizontalScrollBar()->setSliderPosition( | |
8dbbc7f0 | 572 | offset_ * MaxScrollValue / (scale_ * length)); |
f25770e2 | 573 | } |
adb4b10c | 574 | |
8dbbc7f0 | 575 | updating_scroll_ = false; |
528bd8a1 | 576 | |
adb4b10c JH |
577 | // Set the vertical scrollbar |
578 | verticalScrollBar()->setPageStep(areaSize.height()); | |
65c34596 | 579 | verticalScrollBar()->setSingleStep(areaSize.height() / 8); |
a5d93c27 JH |
580 | |
581 | const pair<int, int> extents = v_extents(); | |
f1d9ac67 SA |
582 | verticalScrollBar()->setRange(extents.first - (areaSize.height() / 2), |
583 | extents.second - (areaSize.height() / 2)); | |
adb4b10c JH |
584 | } |
585 | ||
d7c0ca4a JH |
586 | void View::update_layout() |
587 | { | |
512bfc56 | 588 | setViewportMargins( |
8dbbc7f0 JH |
589 | header_->sizeHint().width() - pv::view::Header::BaselineOffset, |
590 | ruler_->sizeHint().height(), 0, 0); | |
591 | ruler_->setGeometry(viewport_->x(), 0, | |
819e2e95 | 592 | viewport_->width(), ruler_->extended_size_hint().height()); |
8dbbc7f0 | 593 | header_->setGeometry(0, viewport_->y(), |
819e2e95 | 594 | header_->extended_size_hint().width(), viewport_->height()); |
d7c0ca4a JH |
595 | update_scroll(); |
596 | } | |
597 | ||
b3f44329 | 598 | void View::paint_label(QPainter &p, const QRect &rect, bool hover) |
eae6e30a JH |
599 | { |
600 | (void)p; | |
b3f44329 | 601 | (void)rect; |
eae6e30a JH |
602 | (void)hover; |
603 | } | |
604 | ||
b3f44329 | 605 | QRectF View::label_rect(const QRectF &rect) |
eae6e30a | 606 | { |
b3f44329 | 607 | (void)rect; |
eae6e30a JH |
608 | return QRectF(); |
609 | } | |
610 | ||
cf124e47 JH |
611 | RowItemOwner* View::find_prevalent_trace_group( |
612 | const shared_ptr<sigrok::ChannelGroup> &group, | |
613 | const unordered_map<shared_ptr<sigrok::Channel>, shared_ptr<Signal> > | |
614 | &signal_map) | |
448a72cf | 615 | { |
cf124e47 | 616 | assert(group); |
448a72cf | 617 | |
cf124e47 JH |
618 | unordered_set<RowItemOwner*> owners; |
619 | vector<RowItemOwner*> owner_list; | |
448a72cf | 620 | |
cf124e47 JH |
621 | // Make a set and a list of all the owners |
622 | for (const auto &channel : group->channels()) { | |
448a72cf | 623 | const auto iter = signal_map.find(channel); |
cf124e47 | 624 | if (iter == signal_map.end()) |
448a72cf JH |
625 | continue; |
626 | ||
cf124e47 JH |
627 | RowItemOwner *const o = (*iter).second->owner(); |
628 | owner_list.push_back(o); | |
629 | owners.insert(o); | |
630 | } | |
448a72cf | 631 | |
cf124e47 JH |
632 | // Iterate through the list of owners, and find the most prevalent |
633 | size_t max_prevalence = 0; | |
634 | RowItemOwner *prevalent_owner = nullptr; | |
635 | for (RowItemOwner *owner : owners) { | |
636 | const size_t prevalence = std::count_if( | |
637 | owner_list.begin(), owner_list.end(), | |
638 | [&](RowItemOwner *o) { return o == owner; }); | |
639 | if (prevalence > max_prevalence) { | |
640 | max_prevalence = prevalence; | |
641 | prevalent_owner = owner; | |
642 | } | |
448a72cf JH |
643 | } |
644 | ||
cf124e47 | 645 | return prevalent_owner; |
448a72cf JH |
646 | } |
647 | ||
cf124e47 JH |
648 | vector< shared_ptr<Trace> > View::extract_new_traces_for_channels( |
649 | const vector< shared_ptr<sigrok::Channel> > &channels, | |
650 | const unordered_map<shared_ptr<sigrok::Channel>, shared_ptr<Signal> > | |
651 | &signal_map, | |
652 | set< shared_ptr<Trace> > &add_list) | |
653 | { | |
654 | vector< shared_ptr<Trace> > filtered_traces; | |
655 | ||
656 | for (const auto &channel : channels) | |
657 | { | |
658 | const auto map_iter = signal_map.find(channel); | |
659 | if (map_iter == signal_map.end()) | |
660 | continue; | |
661 | ||
662 | shared_ptr<Trace> trace = (*map_iter).second; | |
663 | const auto list_iter = add_list.find(trace); | |
664 | if (list_iter == add_list.end()) | |
665 | continue; | |
666 | ||
667 | filtered_traces.push_back(trace); | |
668 | add_list.erase(list_iter); | |
669 | } | |
670 | ||
671 | return filtered_traces; | |
448a72cf JH |
672 | } |
673 | ||
ef454ad5 SA |
674 | void View::determine_time_unit() |
675 | { | |
7ee199a7 SA |
676 | // Check whether we know the sample rate and hence can use time as the unit |
677 | if (time_unit_ == util::Samples) { | |
678 | shared_lock<shared_mutex> lock(session().signals_mutex()); | |
679 | const unordered_set< shared_ptr<Signal> > &sigs(session().signals()); | |
680 | ||
681 | // Check all signals but... | |
682 | for (const shared_ptr<Signal> signal : sigs) { | |
683 | const shared_ptr<SignalData> data = signal->data(); | |
684 | ||
685 | // ...only check first segment of each | |
686 | const vector< shared_ptr<Segment> > segments = data->segments(); | |
687 | if (!segments.empty()) | |
688 | if (segments[0]->samplerate()) { | |
689 | time_unit_ = util::Time; | |
690 | break; | |
691 | } | |
692 | } | |
ef454ad5 SA |
693 | } |
694 | } | |
695 | ||
cbd80f64 JH |
696 | bool View::eventFilter(QObject *object, QEvent *event) |
697 | { | |
698 | const QEvent::Type type = event->type(); | |
333d5bbc | 699 | if (type == QEvent::MouseMove) { |
cbd80f64 JH |
700 | |
701 | const QMouseEvent *const mouse_event = (QMouseEvent*)event; | |
8dbbc7f0 JH |
702 | if (object == viewport_) |
703 | hover_point_ = mouse_event->pos(); | |
819e2e95 | 704 | else if (object == ruler_) |
8dbbc7f0 JH |
705 | hover_point_ = QPoint(mouse_event->x(), 0); |
706 | else if (object == header_) | |
707 | hover_point_ = QPoint(0, mouse_event->y()); | |
cbd80f64 | 708 | else |
8dbbc7f0 | 709 | hover_point_ = QPoint(-1, -1); |
cbd80f64 JH |
710 | |
711 | hover_point_changed(); | |
712 | ||
333d5bbc | 713 | } else if (type == QEvent::Leave) { |
8dbbc7f0 | 714 | hover_point_ = QPoint(-1, -1); |
cbd80f64 JH |
715 | hover_point_changed(); |
716 | } | |
717 | ||
718 | return QObject::eventFilter(object, event); | |
719 | } | |
720 | ||
cdf7bea7 | 721 | bool View::viewportEvent(QEvent *e) |
adb4b10c JH |
722 | { |
723 | switch(e->type()) { | |
724 | case QEvent::Paint: | |
725 | case QEvent::MouseButtonPress: | |
726 | case QEvent::MouseButtonRelease: | |
727 | case QEvent::MouseButtonDblClick: | |
728 | case QEvent::MouseMove: | |
729 | case QEvent::Wheel: | |
4b4f1c0d MC |
730 | case QEvent::TouchBegin: |
731 | case QEvent::TouchUpdate: | |
732 | case QEvent::TouchEnd: | |
adb4b10c JH |
733 | return false; |
734 | ||
735 | default: | |
736 | return QAbstractScrollArea::viewportEvent(e); | |
737 | } | |
738 | } | |
739 | ||
e314eca4 | 740 | void View::resizeEvent(QResizeEvent*) |
adb4b10c | 741 | { |
d7c0ca4a | 742 | update_layout(); |
adb4b10c JH |
743 | } |
744 | ||
6e2c3c85 | 745 | void View::row_item_appearance_changed(bool label, bool content) |
32218d3e JH |
746 | { |
747 | if (label) | |
8dbbc7f0 | 748 | header_->update(); |
32218d3e | 749 | if (content) |
8dbbc7f0 | 750 | viewport_->update(); |
32218d3e JH |
751 | } |
752 | ||
98cfe4e8 JH |
753 | void View::time_item_appearance_changed(bool label, bool content) |
754 | { | |
755 | if (label) | |
819e2e95 | 756 | ruler_->update(); |
98cfe4e8 JH |
757 | if (content) |
758 | viewport_->update(); | |
759 | } | |
760 | ||
32218d3e JH |
761 | void View::extents_changed(bool horz, bool vert) |
762 | { | |
8dbbc7f0 | 763 | sticky_events_ |= |
76fea660 JH |
764 | (horz ? RowItemHExtentsChanged : 0) | |
765 | (vert ? RowItemVExtentsChanged : 0); | |
8dbbc7f0 | 766 | lazy_event_handler_.start(); |
32218d3e JH |
767 | } |
768 | ||
b16907d3 | 769 | void View::h_scroll_value_changed(int value) |
adb4b10c | 770 | { |
8dbbc7f0 | 771 | if (updating_scroll_) |
528bd8a1 JH |
772 | return; |
773 | ||
c7b03d9d SA |
774 | // Disable sticky scrolling when user moves the horizontal scroll bar |
775 | // during a running acquisition | |
776 | if (sticky_scrolling_ && (session_.get_capture_state() == Session::Running)) { | |
777 | sticky_scrolling_ = false; | |
778 | sticky_scrolling_changed(false); | |
779 | } | |
780 | ||
f25770e2 | 781 | const int range = horizontalScrollBar()->maximum(); |
333d5bbc | 782 | if (range < MaxScrollValue) |
8dbbc7f0 | 783 | offset_ = scale_ * value; |
f25770e2 JH |
784 | else { |
785 | double length = 0, offset; | |
786 | get_scroll_layout(length, offset); | |
8dbbc7f0 | 787 | offset_ = scale_ * length * value / MaxScrollValue; |
f25770e2 JH |
788 | } |
789 | ||
8dbbc7f0 | 790 | ruler_->update(); |
8dbbc7f0 | 791 | viewport_->update(); |
adb4b10c JH |
792 | } |
793 | ||
f8400017 | 794 | void View::v_scroll_value_changed() |
adb4b10c | 795 | { |
8dbbc7f0 JH |
796 | header_->update(); |
797 | viewport_->update(); | |
adb4b10c JH |
798 | } |
799 | ||
69dd2b03 JH |
800 | void View::signals_changed() |
801 | { | |
cf124e47 | 802 | vector< shared_ptr<RowItem> > new_top_level_items; |
68b21a71 | 803 | |
e37e05f7 JH |
804 | const auto device = session_.device(); |
805 | if (!device) | |
806 | return; | |
807 | ||
808 | shared_ptr<sigrok::Device> sr_dev = device->device(); | |
809 | assert(sr_dev); | |
448a72cf | 810 | |
cf124e47 JH |
811 | // Make a list of traces that are being added, and a list of traces |
812 | // that are being removed | |
813 | const set<shared_ptr<Trace>> prev_traces = list_by_type<Trace>(); | |
448a72cf | 814 | |
8dbbc7f0 | 815 | shared_lock<shared_mutex> lock(session_.signals_mutex()); |
78b0af3e | 816 | const unordered_set< shared_ptr<Signal> > &sigs(session_.signals()); |
448a72cf | 817 | |
cf124e47 JH |
818 | set< shared_ptr<Trace> > traces(sigs.begin(), sigs.end()); |
819 | ||
820 | #ifdef ENABLE_DECODE | |
821 | const vector< shared_ptr<DecodeTrace> > decode_traces( | |
822 | session().get_decode_signals()); | |
823 | traces.insert(decode_traces.begin(), decode_traces.end()); | |
824 | #endif | |
825 | ||
826 | set< shared_ptr<Trace> > add_traces; | |
827 | set_difference(traces.begin(), traces.end(), | |
828 | prev_traces.begin(), prev_traces.end(), | |
829 | inserter(add_traces, add_traces.begin())); | |
830 | ||
831 | set< shared_ptr<Trace> > remove_traces; | |
832 | set_difference(prev_traces.begin(), prev_traces.end(), | |
833 | traces.begin(), traces.end(), | |
834 | inserter(remove_traces, remove_traces.begin())); | |
835 | ||
836 | // Make a look-up table of sigrok Channels to pulseview Signals | |
837 | unordered_map<shared_ptr<sigrok::Channel>, shared_ptr<Signal> > | |
838 | signal_map; | |
448a72cf JH |
839 | for (const shared_ptr<Signal> &sig : sigs) |
840 | signal_map[sig->channel()] = sig; | |
841 | ||
842 | // Populate channel groups | |
e37e05f7 | 843 | for (auto entry : sr_dev->channel_groups()) |
448a72cf JH |
844 | { |
845 | const shared_ptr<sigrok::ChannelGroup> &group = entry.second; | |
846 | ||
847 | if (group->channels().size() <= 1) | |
848 | continue; | |
849 | ||
cf124e47 JH |
850 | // Find best trace group to add to |
851 | RowItemOwner *owner = find_prevalent_trace_group( | |
852 | group, signal_map); | |
448a72cf | 853 | |
cf124e47 JH |
854 | // If there is no trace group, create one |
855 | shared_ptr<TraceGroup> new_trace_group; | |
856 | if (!owner) { | |
857 | new_trace_group.reset(new TraceGroup()); | |
858 | owner = new_trace_group.get(); | |
859 | } | |
448a72cf | 860 | |
cf124e47 JH |
861 | // Extract traces for the trace group, removing them from |
862 | // the add list | |
863 | const vector< shared_ptr<Trace> > new_traces_in_group = | |
864 | extract_new_traces_for_channels(group->channels(), | |
865 | signal_map, add_traces); | |
866 | ||
867 | // Add the traces to the group | |
868 | const pair<int, int> prev_v_extents = owner->v_extents(); | |
869 | int offset = prev_v_extents.second - prev_v_extents.first; | |
870 | for (shared_ptr<Trace> trace : new_traces_in_group) { | |
871 | assert(trace); | |
872 | owner->add_child_item(trace); | |
873 | ||
874 | const pair<int, int> extents = trace->v_extents(); | |
875 | if (trace->enabled()) | |
876 | offset += -extents.first; | |
877 | trace->force_to_v_offset(offset); | |
878 | if (trace->enabled()) | |
879 | offset += extents.second; | |
880 | } | |
68b21a71 | 881 | |
cf124e47 JH |
882 | // If this is a new group, enqueue it in the new top level |
883 | // items list | |
884 | if (!new_traces_in_group.empty() && new_trace_group) | |
885 | new_top_level_items.push_back(new_trace_group); | |
448a72cf JH |
886 | } |
887 | ||
cf124e47 JH |
888 | // Enqueue the remaining channels as free ungrouped traces |
889 | const vector< shared_ptr<Trace> > new_top_level_signals = | |
890 | extract_new_traces_for_channels(sr_dev->channels(), | |
891 | signal_map, add_traces); | |
892 | new_top_level_items.insert(new_top_level_items.end(), | |
893 | new_top_level_signals.begin(), new_top_level_signals.end()); | |
894 | ||
895 | // Enqueue any remaining traces i.e. decode traces | |
896 | new_top_level_items.insert(new_top_level_items.end(), | |
897 | add_traces.begin(), add_traces.end()); | |
898 | ||
899 | // Remove any removed traces | |
900 | for (shared_ptr<Trace> trace : remove_traces) { | |
901 | RowItemOwner *const owner = trace->owner(); | |
902 | assert(owner); | |
903 | owner->remove_child_item(trace); | |
904 | } | |
448a72cf | 905 | |
cf124e47 JH |
906 | // Add and position the pending top levels items |
907 | for (auto item : new_top_level_items) { | |
908 | add_child_item(item); | |
909 | ||
910 | // Position the item after the last present item | |
911 | int offset = v_extents().second; | |
912 | const pair<int, int> extents = item->v_extents(); | |
913 | if (item->enabled()) | |
914 | offset += -extents.first; | |
915 | item->force_to_v_offset(offset); | |
916 | if (item->enabled()) | |
917 | offset += extents.second; | |
ef8311a4 JH |
918 | } |
919 | ||
a6c1726e | 920 | update_layout(); |
cf124e47 JH |
921 | |
922 | header_->update(); | |
923 | viewport_->update(); | |
69dd2b03 JH |
924 | } |
925 | ||
7ee199a7 | 926 | void View::capture_state_updated(int state) |
adb4b10c | 927 | { |
ce11b2ea | 928 | // Reset "always zoom to fit" when we change to the stopped state |
7ee199a7 | 929 | if (always_zoom_to_fit_ && (state == Session::Stopped)) { |
ce11b2ea SA |
930 | always_zoom_to_fit_ = false; |
931 | always_zoom_to_fit_changed(false); | |
932 | } | |
933 | ||
7ee199a7 SA |
934 | if (state == Session::Running) |
935 | time_unit_ = util::Samples; | |
936 | } | |
937 | ||
938 | void View::data_updated() | |
939 | { | |
ce11b2ea | 940 | if (always_zoom_to_fit_ || sticky_scrolling_) { |
c7b03d9d SA |
941 | if (!delayed_view_updater_.isActive()) |
942 | delayed_view_updater_.start(); | |
943 | } else { | |
ef454ad5 | 944 | determine_time_unit(); |
c7b03d9d SA |
945 | update_scroll(); |
946 | ruler_->update(); | |
947 | viewport_->update(); | |
948 | } | |
949 | } | |
950 | ||
951 | void View::perform_delayed_view_update() | |
952 | { | |
ce11b2ea SA |
953 | if (always_zoom_to_fit_) |
954 | zoom_fit(true); | |
955 | ||
c7b03d9d SA |
956 | if (sticky_scrolling_) { |
957 | // Make right side of the view sticky | |
958 | double length = 0, offset; | |
959 | get_scroll_layout(length, offset); | |
960 | ||
961 | const QSize areaSize = viewport_->size(); | |
962 | length = max(length - areaSize.width(), 0.0); | |
963 | ||
964 | offset_ = scale_ * length; | |
965 | } | |
adb4b10c | 966 | |
ef454ad5 | 967 | determine_time_unit(); |
c7b03d9d SA |
968 | update_scroll(); |
969 | ruler_->update(); | |
8dbbc7f0 | 970 | viewport_->update(); |
adb4b10c | 971 | } |
cdf7bea7 | 972 | |
32218d3e | 973 | void View::process_sticky_events() |
d7c0ca4a | 974 | { |
76fea660 | 975 | if (sticky_events_ & RowItemHExtentsChanged) |
32218d3e | 976 | update_layout(); |
f15bb3bc | 977 | if (sticky_events_ & RowItemVExtentsChanged) { |
7ff0145f | 978 | restack_all_row_items(); |
f15bb3bc JH |
979 | update_scroll(); |
980 | } | |
32218d3e JH |
981 | |
982 | // Clear the sticky events | |
8dbbc7f0 | 983 | sticky_events_ = 0; |
d7c0ca4a JH |
984 | } |
985 | ||
33c62f44 JH |
986 | void View::on_hover_point_changed() |
987 | { | |
aa59d5c2 | 988 | for (shared_ptr<RowItem> r : *this) |
eae6e30a | 989 | r->hover_point_changed(); |
33c62f44 JH |
990 | } |
991 | ||
cdf7bea7 JH |
992 | } // namespace view |
993 | } // namespace pv |