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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 JH |
63 | using pv::util::format_time; |
64 | ||
819f4c25 | 65 | using std::deque; |
448a72cf | 66 | using std::dynamic_pointer_cast; |
cf124e47 | 67 | using std::inserter; |
819f4c25 | 68 | using std::list; |
c3a740dd | 69 | using std::lock_guard; |
819f4c25 | 70 | using std::max; |
1bc6525b | 71 | using std::make_pair; |
819f4c25 | 72 | using std::min; |
1bc6525b | 73 | using std::pair; |
819f4c25 | 74 | using std::set; |
cf124e47 | 75 | using std::set_difference; |
f9abf97e | 76 | using std::shared_ptr; |
448a72cf | 77 | using std::unordered_map; |
7ff0145f | 78 | using std::unordered_set; |
819f4c25 | 79 | using std::vector; |
f9abf97e | 80 | using std::weak_ptr; |
adb4b10c | 81 | |
cdf7bea7 JH |
82 | namespace pv { |
83 | namespace view { | |
adb4b10c | 84 | |
cdf7bea7 JH |
85 | const double View::MaxScale = 1e9; |
86 | const double View::MinScale = 1e-15; | |
adb4b10c | 87 | |
f25770e2 | 88 | const int View::MaxScrollValue = INT_MAX / 2; |
ce11b2ea | 89 | const int View::MaxViewAutoUpdateRate = 25; // No more than 25 Hz with sticky scrolling |
f25770e2 | 90 | |
361c560e JH |
91 | const int View::ScaleUnits[3] = {1, 2, 5}; |
92 | ||
2b81ae46 | 93 | View::View(Session &session, QWidget *parent) : |
adb4b10c | 94 | QAbstractScrollArea(parent), |
8dbbc7f0 JH |
95 | session_(session), |
96 | viewport_(new Viewport(*this)), | |
97 | ruler_(new Ruler(*this)), | |
8dbbc7f0 | 98 | header_(new Header(*this)), |
c0100b55 | 99 | scale_(1e-3), |
8dbbc7f0 | 100 | offset_(0), |
8dbbc7f0 | 101 | updating_scroll_(false), |
c7b03d9d | 102 | sticky_scrolling_(false), // Default setting is set in MainWindow::setup_ui() |
ce11b2ea | 103 | always_zoom_to_fit_(false), |
361c560e JH |
104 | tick_period_(0.0), |
105 | tick_prefix_(0), | |
8dbbc7f0 | 106 | show_cursors_(false), |
5c5ce757 | 107 | cursors_(new CursorPair(*this)), |
8914fe79 | 108 | next_flag_text_('A'), |
8dbbc7f0 | 109 | hover_point_(-1, -1) |
adb4b10c | 110 | { |
b16907d3 JH |
111 | connect(horizontalScrollBar(), SIGNAL(valueChanged(int)), |
112 | this, SLOT(h_scroll_value_changed(int))); | |
adb4b10c | 113 | connect(verticalScrollBar(), SIGNAL(valueChanged(int)), |
f8400017 | 114 | this, SLOT(v_scroll_value_changed())); |
69dd2b03 | 115 | |
8dbbc7f0 | 116 | connect(&session_, SIGNAL(signals_changed()), |
69dd2b03 | 117 | this, SLOT(signals_changed())); |
8dbbc7f0 | 118 | connect(&session_, SIGNAL(capture_state_changed(int)), |
50f97924 | 119 | this, SLOT(data_updated())); |
8dbbc7f0 | 120 | connect(&session_, SIGNAL(data_received()), |
1f374035 | 121 | this, SLOT(data_updated())); |
8dbbc7f0 | 122 | connect(&session_, SIGNAL(frame_ended()), |
adb4b10c | 123 | this, SLOT(data_updated())); |
1d8dca91 | 124 | |
8dbbc7f0 | 125 | connect(header_, SIGNAL(selection_changed()), |
819e2e95 JH |
126 | ruler_, SLOT(clear_selection())); |
127 | connect(ruler_, SIGNAL(selection_changed()), | |
8dbbc7f0 | 128 | header_, SLOT(clear_selection())); |
17348f85 | 129 | |
8dbbc7f0 | 130 | connect(header_, SIGNAL(selection_changed()), |
8b454527 | 131 | this, SIGNAL(selection_changed())); |
819e2e95 | 132 | connect(ruler_, SIGNAL(selection_changed()), |
8b454527 JH |
133 | this, SIGNAL(selection_changed())); |
134 | ||
33c62f44 JH |
135 | connect(this, SIGNAL(hover_point_changed()), |
136 | this, SLOT(on_hover_point_changed())); | |
137 | ||
8dbbc7f0 | 138 | connect(&lazy_event_handler_, SIGNAL(timeout()), |
32218d3e | 139 | this, SLOT(process_sticky_events())); |
8dbbc7f0 | 140 | lazy_event_handler_.setSingleShot(true); |
32218d3e | 141 | |
c7b03d9d SA |
142 | connect(&delayed_view_updater_, SIGNAL(timeout()), |
143 | this, SLOT(perform_delayed_view_update())); | |
144 | delayed_view_updater_.setSingleShot(true); | |
145 | delayed_view_updater_.setInterval(1000 / MaxViewAutoUpdateRate); | |
146 | ||
8dbbc7f0 | 147 | setViewport(viewport_); |
cbd80f64 | 148 | |
8dbbc7f0 JH |
149 | viewport_->installEventFilter(this); |
150 | ruler_->installEventFilter(this); | |
8dbbc7f0 | 151 | header_->installEventFilter(this); |
d873f4d6 | 152 | |
9f46d905 JH |
153 | // Trigger the initial event manually. The default device has signals |
154 | // which were created before this object came into being | |
d873f4d6 | 155 | signals_changed(); |
84a0d458 | 156 | |
512bfc56 | 157 | // make sure the transparent widgets are on the top |
819e2e95 | 158 | ruler_->raise(); |
8dbbc7f0 | 159 | header_->raise(); |
361c560e JH |
160 | |
161 | // Update the zoom state | |
162 | calculate_tick_spacing(); | |
adb4b10c JH |
163 | } |
164 | ||
2b81ae46 | 165 | Session& View::session() |
1d19ef83 | 166 | { |
8dbbc7f0 | 167 | return session_; |
1d19ef83 JH |
168 | } |
169 | ||
2b81ae46 | 170 | const Session& View::session() const |
38eeddea | 171 | { |
8dbbc7f0 | 172 | return session_; |
38eeddea JH |
173 | } |
174 | ||
eae6e30a JH |
175 | View* View::view() |
176 | { | |
177 | return this; | |
178 | } | |
179 | ||
180 | const View* View::view() const | |
181 | { | |
182 | return this; | |
183 | } | |
184 | ||
2ae445ba SA |
185 | Viewport* View::viewport() |
186 | { | |
8dbbc7f0 | 187 | return viewport_; |
2ae445ba SA |
188 | } |
189 | ||
190 | const Viewport* View::viewport() const | |
191 | { | |
8dbbc7f0 | 192 | return viewport_; |
2ae445ba SA |
193 | } |
194 | ||
2496bf45 JH |
195 | vector< shared_ptr<TimeItem> > View::time_items() const |
196 | { | |
8914fe79 JH |
197 | const vector<shared_ptr<Flag>> f(flags()); |
198 | vector<shared_ptr<TimeItem>> items(f.begin(), f.end()); | |
5a3e53f6 | 199 | items.push_back(cursors_); |
5c5ce757 JH |
200 | items.push_back(cursors_->first()); |
201 | items.push_back(cursors_->second()); | |
2496bf45 JH |
202 | return items; |
203 | } | |
204 | ||
cdf7bea7 | 205 | double View::scale() const |
adb4b10c | 206 | { |
8dbbc7f0 | 207 | return scale_; |
adb4b10c JH |
208 | } |
209 | ||
cdf7bea7 | 210 | double View::offset() const |
adb4b10c | 211 | { |
8dbbc7f0 | 212 | return offset_; |
adb4b10c JH |
213 | } |
214 | ||
7ff0145f | 215 | int View::owner_visual_v_offset() const |
adb4b10c | 216 | { |
f8400017 | 217 | return -verticalScrollBar()->sliderPosition(); |
adb4b10c JH |
218 | } |
219 | ||
4d476647 JH |
220 | void View::set_v_offset(int offset) |
221 | { | |
222 | verticalScrollBar()->setSliderPosition(offset); | |
223 | header_->update(); | |
224 | viewport_->update(); | |
225 | } | |
226 | ||
3e769a37 JH |
227 | unsigned int View::depth() const |
228 | { | |
229 | return 0; | |
230 | } | |
231 | ||
361c560e JH |
232 | unsigned int View::tick_prefix() const |
233 | { | |
234 | return tick_prefix_; | |
235 | } | |
236 | ||
237 | double View::tick_period() const | |
238 | { | |
239 | return tick_period_; | |
240 | } | |
241 | ||
cdf7bea7 | 242 | void View::zoom(double steps) |
adb4b10c | 243 | { |
8dbbc7f0 | 244 | zoom(steps, viewport_->width() / 2); |
adb4b10c JH |
245 | } |
246 | ||
17c0f398 JH |
247 | void View::zoom(double steps, int offset) |
248 | { | |
8dbbc7f0 | 249 | set_zoom(scale_ * pow(3.0/2.0, -steps), offset); |
17c0f398 JH |
250 | } |
251 | ||
ce11b2ea | 252 | void View::zoom_fit(bool gui_state) |
ca46b534 | 253 | { |
ce11b2ea SA |
254 | // Act as one-shot when stopped, toggle along with the GUI otherwise |
255 | if (session_.get_capture_state() == Session::Stopped) { | |
256 | always_zoom_to_fit_ = false; | |
257 | always_zoom_to_fit_changed(false); | |
258 | } else { | |
259 | always_zoom_to_fit_ = gui_state; | |
260 | always_zoom_to_fit_changed(gui_state); | |
261 | } | |
262 | ||
1bc6525b JH |
263 | const pair<double, double> extents = get_time_extents(); |
264 | const double delta = extents.second - extents.first; | |
265 | if (delta < 1e-12) | |
ca46b534 JH |
266 | return; |
267 | ||
8dbbc7f0 JH |
268 | assert(viewport_); |
269 | const int w = viewport_->width(); | |
ca46b534 JH |
270 | if (w <= 0) |
271 | return; | |
272 | ||
78311127 JH |
273 | const double scale = max(min(delta / w, MaxScale), MinScale); |
274 | set_scale_offset(scale, extents.first); | |
ca46b534 JH |
275 | } |
276 | ||
d1e7d82c JH |
277 | void View::zoom_one_to_one() |
278 | { | |
279 | using pv::data::SignalData; | |
280 | ||
d1e7d82c | 281 | // Make a set of all the visible data objects |
0fc664a9 | 282 | set< shared_ptr<SignalData> > visible_data = get_visible_data(); |
d1e7d82c JH |
283 | if (visible_data.empty()) |
284 | return; | |
285 | ||
286 | double samplerate = 0.0; | |
d9aecf1f | 287 | for (const shared_ptr<SignalData> d : visible_data) { |
d1e7d82c | 288 | assert(d); |
f3d66e52 JH |
289 | const vector< shared_ptr<Segment> > segments = |
290 | d->segments(); | |
291 | for (const shared_ptr<Segment> &s : segments) | |
ff008de6 | 292 | samplerate = max(samplerate, s->samplerate()); |
d1e7d82c JH |
293 | } |
294 | ||
295 | if (samplerate == 0.0) | |
296 | return; | |
297 | ||
8dbbc7f0 JH |
298 | assert(viewport_); |
299 | const int w = viewport_->width(); | |
d1e7d82c JH |
300 | if (w <= 0) |
301 | return; | |
302 | ||
303 | set_zoom(1.0 / samplerate, w / 2); | |
304 | } | |
305 | ||
cdf7bea7 | 306 | void View::set_scale_offset(double scale, double offset) |
adb4b10c | 307 | { |
ce11b2ea SA |
308 | // Disable sticky scrolling / always zoom to fit when acquisition runs |
309 | // and user drags the viewport | |
c7b03d9d | 310 | if ((scale_ == scale) && (offset_ != offset) && |
ce11b2ea SA |
311 | (session_.get_capture_state() == Session::Running)) { |
312 | ||
313 | if (sticky_scrolling_) { | |
314 | sticky_scrolling_ = false; | |
315 | sticky_scrolling_changed(false); | |
316 | } | |
317 | ||
318 | if (always_zoom_to_fit_) { | |
319 | always_zoom_to_fit_ = false; | |
320 | always_zoom_to_fit_changed(false); | |
321 | } | |
c7b03d9d SA |
322 | } |
323 | ||
8dbbc7f0 JH |
324 | scale_ = scale; |
325 | offset_ = offset; | |
ccdd3ef5 | 326 | |
361c560e JH |
327 | calculate_tick_spacing(); |
328 | ||
adb4b10c | 329 | update_scroll(); |
8dbbc7f0 | 330 | ruler_->update(); |
8dbbc7f0 | 331 | viewport_->update(); |
e0fc5810 | 332 | scale_offset_changed(); |
adb4b10c JH |
333 | } |
334 | ||
1bc6525b JH |
335 | set< shared_ptr<SignalData> > View::get_visible_data() const |
336 | { | |
aca64cac | 337 | shared_lock<shared_mutex> lock(session().signals_mutex()); |
78b0af3e | 338 | const unordered_set< shared_ptr<Signal> > &sigs(session().signals()); |
1bc6525b JH |
339 | |
340 | // Make a set of all the visible data objects | |
341 | set< shared_ptr<SignalData> > visible_data; | |
d9aecf1f | 342 | for (const shared_ptr<Signal> sig : sigs) |
1bc6525b JH |
343 | if (sig->enabled()) |
344 | visible_data.insert(sig->data()); | |
345 | ||
346 | return visible_data; | |
347 | } | |
348 | ||
349 | pair<double, double> View::get_time_extents() const | |
350 | { | |
1bc6525b | 351 | double left_time = DBL_MAX, right_time = DBL_MIN; |
7f4038d6 | 352 | const set< shared_ptr<SignalData> > visible_data = get_visible_data(); |
d9aecf1f | 353 | for (const shared_ptr<SignalData> d : visible_data) |
1bc6525b | 354 | { |
f3d66e52 JH |
355 | const vector< shared_ptr<Segment> > segments = |
356 | d->segments(); | |
357 | for (const shared_ptr<Segment> &s : segments) { | |
ff008de6 JH |
358 | double samplerate = s->samplerate(); |
359 | samplerate = (samplerate <= 0.0) ? 1.0 : samplerate; | |
360 | ||
7f4038d6 JH |
361 | const double start_time = s->start_time(); |
362 | left_time = min(left_time, start_time); | |
363 | right_time = max(right_time, start_time + | |
e45b13b5 | 364 | d->max_sample_count() / samplerate); |
7f4038d6 | 365 | } |
1bc6525b JH |
366 | } |
367 | ||
7f4038d6 JH |
368 | if (left_time == DBL_MAX && right_time == DBL_MIN) |
369 | return make_pair(0.0, 0.0); | |
370 | ||
1bc6525b JH |
371 | assert(left_time < right_time); |
372 | return make_pair(left_time, right_time); | |
373 | } | |
374 | ||
c7b03d9d SA |
375 | void View::enable_sticky_scrolling(bool state) |
376 | { | |
377 | sticky_scrolling_ = state; | |
378 | } | |
379 | ||
f76af637 JH |
380 | bool View::cursors_shown() const |
381 | { | |
8dbbc7f0 | 382 | return show_cursors_; |
f76af637 JH |
383 | } |
384 | ||
385 | void View::show_cursors(bool show) | |
386 | { | |
8dbbc7f0 | 387 | show_cursors_ = show; |
819e2e95 | 388 | ruler_->update(); |
8dbbc7f0 | 389 | viewport_->update(); |
f76af637 JH |
390 | } |
391 | ||
b4d91e56 JH |
392 | void View::centre_cursors() |
393 | { | |
8dbbc7f0 | 394 | const double time_width = scale_ * viewport_->width(); |
5c5ce757 JH |
395 | cursors_->first()->set_time(offset_ + time_width * 0.4); |
396 | cursors_->second()->set_time(offset_ + time_width * 0.6); | |
819e2e95 | 397 | ruler_->update(); |
8dbbc7f0 | 398 | viewport_->update(); |
b4d91e56 JH |
399 | } |
400 | ||
5c5ce757 | 401 | std::shared_ptr<CursorPair> View::cursors() const |
58864c5c | 402 | { |
8dbbc7f0 | 403 | return cursors_; |
58864c5c JH |
404 | } |
405 | ||
8914fe79 JH |
406 | void View::add_flag(double time) |
407 | { | |
408 | flags_.push_back(shared_ptr<Flag>(new Flag(*this, time, | |
409 | QString("%1").arg(next_flag_text_)))); | |
410 | next_flag_text_ = (next_flag_text_ >= 'Z') ? 'A' : | |
411 | (next_flag_text_ + 1); | |
412 | time_item_appearance_changed(true, true); | |
413 | } | |
414 | ||
415 | void View::remove_flag(std::shared_ptr<Flag> flag) | |
416 | { | |
417 | flags_.remove(flag); | |
418 | time_item_appearance_changed(true, true); | |
419 | } | |
420 | ||
421 | vector< std::shared_ptr<Flag> > View::flags() const | |
422 | { | |
423 | vector< std::shared_ptr<Flag> > flags(flags_.begin(), flags_.end()); | |
424 | stable_sort(flags.begin(), flags.end(), | |
425 | [](const shared_ptr<Flag> &a, const shared_ptr<Flag> &b) { | |
426 | return a->time() < b->time(); | |
427 | }); | |
428 | ||
429 | return flags; | |
430 | } | |
431 | ||
cbd80f64 JH |
432 | const QPoint& View::hover_point() const |
433 | { | |
8dbbc7f0 | 434 | return hover_point_; |
cbd80f64 JH |
435 | } |
436 | ||
9cef9567 JH |
437 | void View::update_viewport() |
438 | { | |
8dbbc7f0 JH |
439 | assert(viewport_); |
440 | viewport_->update(); | |
441 | header_->update(); | |
7ff0145f JH |
442 | } |
443 | ||
444 | void View::restack_all_row_items() | |
445 | { | |
873cbed0 JH |
446 | // Make a list of owners that is sorted from deepest first |
447 | const auto owners = list_row_item_owners(); | |
7ff0145f JH |
448 | vector< RowItemOwner* > sorted_owners(owners.begin(), owners.end()); |
449 | sort(sorted_owners.begin(), sorted_owners.end(), | |
450 | [](const RowItemOwner* a, const RowItemOwner *b) { | |
451 | return a->depth() > b->depth(); }); | |
452 | ||
453 | // Restack the items recursively | |
454 | for (auto &o : sorted_owners) | |
455 | o->restack_items(); | |
456 | ||
457 | // Animate the items to their destination | |
458 | for (const auto &r : *this) | |
459 | r->animate_to_layout_v_offset(); | |
9cef9567 JH |
460 | } |
461 | ||
f25770e2 JH |
462 | void View::get_scroll_layout(double &length, double &offset) const |
463 | { | |
1bc6525b | 464 | const pair<double, double> extents = get_time_extents(); |
8dbbc7f0 JH |
465 | length = (extents.second - extents.first) / scale_; |
466 | offset = offset_ / scale_; | |
f25770e2 JH |
467 | } |
468 | ||
d1e7d82c JH |
469 | void View::set_zoom(double scale, int offset) |
470 | { | |
ce11b2ea SA |
471 | // Reset the "always zoom to fit" feature as the user changed the zoom |
472 | always_zoom_to_fit_ = false; | |
473 | always_zoom_to_fit_changed(false); | |
474 | ||
8dbbc7f0 | 475 | const double cursor_offset = offset_ + scale_ * offset; |
d1e7d82c JH |
476 | const double new_scale = max(min(scale, MaxScale), MinScale); |
477 | const double new_offset = cursor_offset - new_scale * offset; | |
478 | set_scale_offset(new_scale, new_offset); | |
479 | } | |
480 | ||
361c560e JH |
481 | void View::calculate_tick_spacing() |
482 | { | |
483 | const double SpacingIncrement = 32.0f; | |
484 | const double MinValueSpacing = 32.0f; | |
485 | ||
486 | double min_width = SpacingIncrement, typical_width; | |
487 | ||
488 | QFontMetrics m(QApplication::font()); | |
489 | ||
490 | do { | |
491 | const double min_period = scale_ * min_width; | |
492 | ||
493 | const int order = (int)floorf(log10f(min_period)); | |
494 | const double order_decimal = pow(10.0, order); | |
495 | ||
496 | unsigned int unit = 0; | |
497 | ||
498 | do { | |
499 | tick_period_ = order_decimal * ScaleUnits[unit++]; | |
500 | } while (tick_period_ < min_period && | |
501 | unit < countof(ScaleUnits)); | |
502 | ||
503 | tick_prefix_ = (order - pv::util::FirstSIPrefixPower) / 3; | |
504 | ||
505 | typical_width = m.boundingRect(0, 0, INT_MAX, INT_MAX, | |
506 | Qt::AlignLeft | Qt::AlignTop, | |
507 | format_time(offset_, tick_prefix_)).width() + | |
508 | MinValueSpacing; | |
509 | ||
510 | min_width += SpacingIncrement; | |
511 | ||
f3290553 | 512 | } while (typical_width > tick_period_ / scale_); |
361c560e JH |
513 | } |
514 | ||
cdf7bea7 | 515 | void View::update_scroll() |
adb4b10c | 516 | { |
8dbbc7f0 | 517 | assert(viewport_); |
adb4b10c | 518 | |
8dbbc7f0 | 519 | const QSize areaSize = viewport_->size(); |
adb4b10c JH |
520 | |
521 | // Set the horizontal scroll bar | |
522 | double length = 0, offset = 0; | |
f25770e2 JH |
523 | get_scroll_layout(length, offset); |
524 | length = max(length - areaSize.width(), 0.0); | |
adb4b10c | 525 | |
d7aae647 SA |
526 | int major_tick_distance = tick_period_ / scale_; |
527 | ||
b4ef7f2a | 528 | horizontalScrollBar()->setPageStep(areaSize.width() / 2); |
d7aae647 | 529 | horizontalScrollBar()->setSingleStep(major_tick_distance); |
f25770e2 | 530 | |
8dbbc7f0 | 531 | updating_scroll_ = true; |
528bd8a1 | 532 | |
333d5bbc | 533 | if (length < MaxScrollValue) { |
f25770e2 JH |
534 | horizontalScrollBar()->setRange(0, length); |
535 | horizontalScrollBar()->setSliderPosition(offset); | |
536 | } else { | |
537 | horizontalScrollBar()->setRange(0, MaxScrollValue); | |
538 | horizontalScrollBar()->setSliderPosition( | |
8dbbc7f0 | 539 | offset_ * MaxScrollValue / (scale_ * length)); |
f25770e2 | 540 | } |
adb4b10c | 541 | |
8dbbc7f0 | 542 | updating_scroll_ = false; |
528bd8a1 | 543 | |
adb4b10c JH |
544 | // Set the vertical scrollbar |
545 | verticalScrollBar()->setPageStep(areaSize.height()); | |
65c34596 | 546 | verticalScrollBar()->setSingleStep(areaSize.height() / 8); |
a5d93c27 JH |
547 | |
548 | const pair<int, int> extents = v_extents(); | |
f1d9ac67 SA |
549 | verticalScrollBar()->setRange(extents.first - (areaSize.height() / 2), |
550 | extents.second - (areaSize.height() / 2)); | |
adb4b10c JH |
551 | } |
552 | ||
d7c0ca4a JH |
553 | void View::update_layout() |
554 | { | |
512bfc56 | 555 | setViewportMargins( |
8dbbc7f0 JH |
556 | header_->sizeHint().width() - pv::view::Header::BaselineOffset, |
557 | ruler_->sizeHint().height(), 0, 0); | |
558 | ruler_->setGeometry(viewport_->x(), 0, | |
819e2e95 | 559 | viewport_->width(), ruler_->extended_size_hint().height()); |
8dbbc7f0 | 560 | header_->setGeometry(0, viewport_->y(), |
819e2e95 | 561 | header_->extended_size_hint().width(), viewport_->height()); |
d7c0ca4a JH |
562 | update_scroll(); |
563 | } | |
564 | ||
b3f44329 | 565 | void View::paint_label(QPainter &p, const QRect &rect, bool hover) |
eae6e30a JH |
566 | { |
567 | (void)p; | |
b3f44329 | 568 | (void)rect; |
eae6e30a JH |
569 | (void)hover; |
570 | } | |
571 | ||
b3f44329 | 572 | QRectF View::label_rect(const QRectF &rect) |
eae6e30a | 573 | { |
b3f44329 | 574 | (void)rect; |
eae6e30a JH |
575 | return QRectF(); |
576 | } | |
577 | ||
cf124e47 JH |
578 | RowItemOwner* View::find_prevalent_trace_group( |
579 | const shared_ptr<sigrok::ChannelGroup> &group, | |
580 | const unordered_map<shared_ptr<sigrok::Channel>, shared_ptr<Signal> > | |
581 | &signal_map) | |
448a72cf | 582 | { |
cf124e47 | 583 | assert(group); |
448a72cf | 584 | |
cf124e47 JH |
585 | unordered_set<RowItemOwner*> owners; |
586 | vector<RowItemOwner*> owner_list; | |
448a72cf | 587 | |
cf124e47 JH |
588 | // Make a set and a list of all the owners |
589 | for (const auto &channel : group->channels()) { | |
448a72cf | 590 | const auto iter = signal_map.find(channel); |
cf124e47 | 591 | if (iter == signal_map.end()) |
448a72cf JH |
592 | continue; |
593 | ||
cf124e47 JH |
594 | RowItemOwner *const o = (*iter).second->owner(); |
595 | owner_list.push_back(o); | |
596 | owners.insert(o); | |
597 | } | |
448a72cf | 598 | |
cf124e47 JH |
599 | // Iterate through the list of owners, and find the most prevalent |
600 | size_t max_prevalence = 0; | |
601 | RowItemOwner *prevalent_owner = nullptr; | |
602 | for (RowItemOwner *owner : owners) { | |
603 | const size_t prevalence = std::count_if( | |
604 | owner_list.begin(), owner_list.end(), | |
605 | [&](RowItemOwner *o) { return o == owner; }); | |
606 | if (prevalence > max_prevalence) { | |
607 | max_prevalence = prevalence; | |
608 | prevalent_owner = owner; | |
609 | } | |
448a72cf JH |
610 | } |
611 | ||
cf124e47 | 612 | return prevalent_owner; |
448a72cf JH |
613 | } |
614 | ||
cf124e47 JH |
615 | vector< shared_ptr<Trace> > View::extract_new_traces_for_channels( |
616 | const vector< shared_ptr<sigrok::Channel> > &channels, | |
617 | const unordered_map<shared_ptr<sigrok::Channel>, shared_ptr<Signal> > | |
618 | &signal_map, | |
619 | set< shared_ptr<Trace> > &add_list) | |
620 | { | |
621 | vector< shared_ptr<Trace> > filtered_traces; | |
622 | ||
623 | for (const auto &channel : channels) | |
624 | { | |
625 | const auto map_iter = signal_map.find(channel); | |
626 | if (map_iter == signal_map.end()) | |
627 | continue; | |
628 | ||
629 | shared_ptr<Trace> trace = (*map_iter).second; | |
630 | const auto list_iter = add_list.find(trace); | |
631 | if (list_iter == add_list.end()) | |
632 | continue; | |
633 | ||
634 | filtered_traces.push_back(trace); | |
635 | add_list.erase(list_iter); | |
636 | } | |
637 | ||
638 | return filtered_traces; | |
448a72cf JH |
639 | } |
640 | ||
cbd80f64 JH |
641 | bool View::eventFilter(QObject *object, QEvent *event) |
642 | { | |
643 | const QEvent::Type type = event->type(); | |
333d5bbc | 644 | if (type == QEvent::MouseMove) { |
cbd80f64 JH |
645 | |
646 | const QMouseEvent *const mouse_event = (QMouseEvent*)event; | |
8dbbc7f0 JH |
647 | if (object == viewport_) |
648 | hover_point_ = mouse_event->pos(); | |
819e2e95 | 649 | else if (object == ruler_) |
8dbbc7f0 JH |
650 | hover_point_ = QPoint(mouse_event->x(), 0); |
651 | else if (object == header_) | |
652 | hover_point_ = QPoint(0, mouse_event->y()); | |
cbd80f64 | 653 | else |
8dbbc7f0 | 654 | hover_point_ = QPoint(-1, -1); |
cbd80f64 JH |
655 | |
656 | hover_point_changed(); | |
657 | ||
333d5bbc | 658 | } else if (type == QEvent::Leave) { |
8dbbc7f0 | 659 | hover_point_ = QPoint(-1, -1); |
cbd80f64 JH |
660 | hover_point_changed(); |
661 | } | |
662 | ||
663 | return QObject::eventFilter(object, event); | |
664 | } | |
665 | ||
cdf7bea7 | 666 | bool View::viewportEvent(QEvent *e) |
adb4b10c JH |
667 | { |
668 | switch(e->type()) { | |
669 | case QEvent::Paint: | |
670 | case QEvent::MouseButtonPress: | |
671 | case QEvent::MouseButtonRelease: | |
672 | case QEvent::MouseButtonDblClick: | |
673 | case QEvent::MouseMove: | |
674 | case QEvent::Wheel: | |
4b4f1c0d MC |
675 | case QEvent::TouchBegin: |
676 | case QEvent::TouchUpdate: | |
677 | case QEvent::TouchEnd: | |
adb4b10c JH |
678 | return false; |
679 | ||
680 | default: | |
681 | return QAbstractScrollArea::viewportEvent(e); | |
682 | } | |
683 | } | |
684 | ||
e314eca4 | 685 | void View::resizeEvent(QResizeEvent*) |
adb4b10c | 686 | { |
d7c0ca4a | 687 | update_layout(); |
adb4b10c JH |
688 | } |
689 | ||
6e2c3c85 | 690 | void View::row_item_appearance_changed(bool label, bool content) |
32218d3e JH |
691 | { |
692 | if (label) | |
8dbbc7f0 | 693 | header_->update(); |
32218d3e | 694 | if (content) |
8dbbc7f0 | 695 | viewport_->update(); |
32218d3e JH |
696 | } |
697 | ||
98cfe4e8 JH |
698 | void View::time_item_appearance_changed(bool label, bool content) |
699 | { | |
700 | if (label) | |
819e2e95 | 701 | ruler_->update(); |
98cfe4e8 JH |
702 | if (content) |
703 | viewport_->update(); | |
704 | } | |
705 | ||
32218d3e JH |
706 | void View::extents_changed(bool horz, bool vert) |
707 | { | |
8dbbc7f0 | 708 | sticky_events_ |= |
76fea660 JH |
709 | (horz ? RowItemHExtentsChanged : 0) | |
710 | (vert ? RowItemVExtentsChanged : 0); | |
8dbbc7f0 | 711 | lazy_event_handler_.start(); |
32218d3e JH |
712 | } |
713 | ||
b16907d3 | 714 | void View::h_scroll_value_changed(int value) |
adb4b10c | 715 | { |
8dbbc7f0 | 716 | if (updating_scroll_) |
528bd8a1 JH |
717 | return; |
718 | ||
c7b03d9d SA |
719 | // Disable sticky scrolling when user moves the horizontal scroll bar |
720 | // during a running acquisition | |
721 | if (sticky_scrolling_ && (session_.get_capture_state() == Session::Running)) { | |
722 | sticky_scrolling_ = false; | |
723 | sticky_scrolling_changed(false); | |
724 | } | |
725 | ||
f25770e2 | 726 | const int range = horizontalScrollBar()->maximum(); |
333d5bbc | 727 | if (range < MaxScrollValue) |
8dbbc7f0 | 728 | offset_ = scale_ * value; |
f25770e2 JH |
729 | else { |
730 | double length = 0, offset; | |
731 | get_scroll_layout(length, offset); | |
8dbbc7f0 | 732 | offset_ = scale_ * length * value / MaxScrollValue; |
f25770e2 JH |
733 | } |
734 | ||
8dbbc7f0 | 735 | ruler_->update(); |
8dbbc7f0 | 736 | viewport_->update(); |
adb4b10c JH |
737 | } |
738 | ||
f8400017 | 739 | void View::v_scroll_value_changed() |
adb4b10c | 740 | { |
8dbbc7f0 JH |
741 | header_->update(); |
742 | viewport_->update(); | |
adb4b10c JH |
743 | } |
744 | ||
69dd2b03 JH |
745 | void View::signals_changed() |
746 | { | |
cf124e47 | 747 | vector< shared_ptr<RowItem> > new_top_level_items; |
68b21a71 | 748 | |
e37e05f7 JH |
749 | const auto device = session_.device(); |
750 | if (!device) | |
751 | return; | |
752 | ||
753 | shared_ptr<sigrok::Device> sr_dev = device->device(); | |
754 | assert(sr_dev); | |
448a72cf | 755 | |
cf124e47 JH |
756 | // Make a list of traces that are being added, and a list of traces |
757 | // that are being removed | |
758 | const set<shared_ptr<Trace>> prev_traces = list_by_type<Trace>(); | |
448a72cf | 759 | |
8dbbc7f0 | 760 | shared_lock<shared_mutex> lock(session_.signals_mutex()); |
78b0af3e | 761 | const unordered_set< shared_ptr<Signal> > &sigs(session_.signals()); |
448a72cf | 762 | |
cf124e47 JH |
763 | set< shared_ptr<Trace> > traces(sigs.begin(), sigs.end()); |
764 | ||
765 | #ifdef ENABLE_DECODE | |
766 | const vector< shared_ptr<DecodeTrace> > decode_traces( | |
767 | session().get_decode_signals()); | |
768 | traces.insert(decode_traces.begin(), decode_traces.end()); | |
769 | #endif | |
770 | ||
771 | set< shared_ptr<Trace> > add_traces; | |
772 | set_difference(traces.begin(), traces.end(), | |
773 | prev_traces.begin(), prev_traces.end(), | |
774 | inserter(add_traces, add_traces.begin())); | |
775 | ||
776 | set< shared_ptr<Trace> > remove_traces; | |
777 | set_difference(prev_traces.begin(), prev_traces.end(), | |
778 | traces.begin(), traces.end(), | |
779 | inserter(remove_traces, remove_traces.begin())); | |
780 | ||
781 | // Make a look-up table of sigrok Channels to pulseview Signals | |
782 | unordered_map<shared_ptr<sigrok::Channel>, shared_ptr<Signal> > | |
783 | signal_map; | |
448a72cf JH |
784 | for (const shared_ptr<Signal> &sig : sigs) |
785 | signal_map[sig->channel()] = sig; | |
786 | ||
787 | // Populate channel groups | |
e37e05f7 | 788 | for (auto entry : sr_dev->channel_groups()) |
448a72cf JH |
789 | { |
790 | const shared_ptr<sigrok::ChannelGroup> &group = entry.second; | |
791 | ||
792 | if (group->channels().size() <= 1) | |
793 | continue; | |
794 | ||
cf124e47 JH |
795 | // Find best trace group to add to |
796 | RowItemOwner *owner = find_prevalent_trace_group( | |
797 | group, signal_map); | |
448a72cf | 798 | |
cf124e47 JH |
799 | // If there is no trace group, create one |
800 | shared_ptr<TraceGroup> new_trace_group; | |
801 | if (!owner) { | |
802 | new_trace_group.reset(new TraceGroup()); | |
803 | owner = new_trace_group.get(); | |
804 | } | |
448a72cf | 805 | |
cf124e47 JH |
806 | // Extract traces for the trace group, removing them from |
807 | // the add list | |
808 | const vector< shared_ptr<Trace> > new_traces_in_group = | |
809 | extract_new_traces_for_channels(group->channels(), | |
810 | signal_map, add_traces); | |
811 | ||
812 | // Add the traces to the group | |
813 | const pair<int, int> prev_v_extents = owner->v_extents(); | |
814 | int offset = prev_v_extents.second - prev_v_extents.first; | |
815 | for (shared_ptr<Trace> trace : new_traces_in_group) { | |
816 | assert(trace); | |
817 | owner->add_child_item(trace); | |
818 | ||
819 | const pair<int, int> extents = trace->v_extents(); | |
820 | if (trace->enabled()) | |
821 | offset += -extents.first; | |
822 | trace->force_to_v_offset(offset); | |
823 | if (trace->enabled()) | |
824 | offset += extents.second; | |
825 | } | |
68b21a71 | 826 | |
cf124e47 JH |
827 | // If this is a new group, enqueue it in the new top level |
828 | // items list | |
829 | if (!new_traces_in_group.empty() && new_trace_group) | |
830 | new_top_level_items.push_back(new_trace_group); | |
448a72cf JH |
831 | } |
832 | ||
cf124e47 JH |
833 | // Enqueue the remaining channels as free ungrouped traces |
834 | const vector< shared_ptr<Trace> > new_top_level_signals = | |
835 | extract_new_traces_for_channels(sr_dev->channels(), | |
836 | signal_map, add_traces); | |
837 | new_top_level_items.insert(new_top_level_items.end(), | |
838 | new_top_level_signals.begin(), new_top_level_signals.end()); | |
839 | ||
840 | // Enqueue any remaining traces i.e. decode traces | |
841 | new_top_level_items.insert(new_top_level_items.end(), | |
842 | add_traces.begin(), add_traces.end()); | |
843 | ||
844 | // Remove any removed traces | |
845 | for (shared_ptr<Trace> trace : remove_traces) { | |
846 | RowItemOwner *const owner = trace->owner(); | |
847 | assert(owner); | |
848 | owner->remove_child_item(trace); | |
849 | } | |
448a72cf | 850 | |
cf124e47 JH |
851 | // Add and position the pending top levels items |
852 | for (auto item : new_top_level_items) { | |
853 | add_child_item(item); | |
854 | ||
855 | // Position the item after the last present item | |
856 | int offset = v_extents().second; | |
857 | const pair<int, int> extents = item->v_extents(); | |
858 | if (item->enabled()) | |
859 | offset += -extents.first; | |
860 | item->force_to_v_offset(offset); | |
861 | if (item->enabled()) | |
862 | offset += extents.second; | |
ef8311a4 JH |
863 | } |
864 | ||
a6c1726e | 865 | update_layout(); |
cf124e47 JH |
866 | |
867 | header_->update(); | |
868 | viewport_->update(); | |
69dd2b03 JH |
869 | } |
870 | ||
cdf7bea7 | 871 | void View::data_updated() |
adb4b10c | 872 | { |
ce11b2ea SA |
873 | // Reset "always zoom to fit" when we change to the stopped state |
874 | if (always_zoom_to_fit_ && (session_.get_capture_state() == Session::Stopped)) { | |
875 | always_zoom_to_fit_ = false; | |
876 | always_zoom_to_fit_changed(false); | |
877 | } | |
878 | ||
879 | if (always_zoom_to_fit_ || sticky_scrolling_) { | |
c7b03d9d SA |
880 | if (!delayed_view_updater_.isActive()) |
881 | delayed_view_updater_.start(); | |
882 | } else { | |
883 | update_scroll(); | |
884 | ruler_->update(); | |
885 | viewport_->update(); | |
886 | } | |
887 | } | |
888 | ||
889 | void View::perform_delayed_view_update() | |
890 | { | |
ce11b2ea SA |
891 | if (always_zoom_to_fit_) |
892 | zoom_fit(true); | |
893 | ||
c7b03d9d SA |
894 | if (sticky_scrolling_) { |
895 | // Make right side of the view sticky | |
896 | double length = 0, offset; | |
897 | get_scroll_layout(length, offset); | |
898 | ||
899 | const QSize areaSize = viewport_->size(); | |
900 | length = max(length - areaSize.width(), 0.0); | |
901 | ||
902 | offset_ = scale_ * length; | |
903 | } | |
adb4b10c | 904 | |
c7b03d9d SA |
905 | update_scroll(); |
906 | ruler_->update(); | |
8dbbc7f0 | 907 | viewport_->update(); |
adb4b10c | 908 | } |
cdf7bea7 | 909 | |
32218d3e | 910 | void View::process_sticky_events() |
d7c0ca4a | 911 | { |
76fea660 | 912 | if (sticky_events_ & RowItemHExtentsChanged) |
32218d3e | 913 | update_layout(); |
f15bb3bc | 914 | if (sticky_events_ & RowItemVExtentsChanged) { |
7ff0145f | 915 | restack_all_row_items(); |
f15bb3bc JH |
916 | update_scroll(); |
917 | } | |
32218d3e JH |
918 | |
919 | // Clear the sticky events | |
8dbbc7f0 | 920 | sticky_events_ = 0; |
d7c0ca4a JH |
921 | } |
922 | ||
33c62f44 JH |
923 | void View::on_hover_point_changed() |
924 | { | |
aa59d5c2 | 925 | for (shared_ptr<RowItem> r : *this) |
eae6e30a | 926 | r->hover_point_changed(); |
33c62f44 JH |
927 | } |
928 | ||
cdf7bea7 JH |
929 | } // namespace view |
930 | } // namespace pv |