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Commit | Line | Data |
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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 | ||
4e5a4405 JH |
21 | #include <libsigrokdecode/libsigrokdecode.h> |
22 | ||
adb4b10c | 23 | #include <assert.h> |
f25770e2 | 24 | #include <limits.h> |
adb4b10c JH |
25 | #include <math.h> |
26 | ||
ca46b534 JH |
27 | #include <set> |
28 | ||
adb4b10c JH |
29 | #include <boost/foreach.hpp> |
30 | ||
31 | #include <QEvent> | |
cbd80f64 | 32 | #include <QMouseEvent> |
adb4b10c JH |
33 | #include <QScrollBar> |
34 | ||
b9329558 | 35 | #include "decodetrace.h" |
1d8dca91 | 36 | #include "header.h" |
ccdd3ef5 | 37 | #include "ruler.h" |
2e575351 | 38 | #include "signal.h" |
cdf7bea7 JH |
39 | #include "view.h" |
40 | #include "viewport.h" | |
adb4b10c | 41 | |
1b1ec774 JH |
42 | #include "pv/sigsession.h" |
43 | #include "pv/data/logic.h" | |
44 | #include "pv/data/logicsnapshot.h" | |
adb4b10c JH |
45 | |
46 | using namespace boost; | |
47 | using namespace std; | |
48 | ||
cdf7bea7 JH |
49 | namespace pv { |
50 | namespace view { | |
adb4b10c | 51 | |
cdf7bea7 JH |
52 | const double View::MaxScale = 1e9; |
53 | const double View::MinScale = 1e-15; | |
adb4b10c | 54 | |
f25770e2 JH |
55 | const int View::MaxScrollValue = INT_MAX / 2; |
56 | ||
8d44d030 JH |
57 | const int View::SignalHeight = 30; |
58 | const int View::SignalMargin = 10; | |
49153683 | 59 | const int View::SignalSnapGridSize = 10; |
1d8dca91 | 60 | |
f76af637 JH |
61 | const QColor View::CursorAreaColour(220, 231, 243); |
62 | ||
2e04f9bd JH |
63 | const QSizeF View::LabelPadding(4, 0); |
64 | ||
cdf7bea7 | 65 | View::View(SigSession &session, QWidget *parent) : |
adb4b10c JH |
66 | QAbstractScrollArea(parent), |
67 | _session(session), | |
cdf7bea7 | 68 | _viewport(new Viewport(*this)), |
ccdd3ef5 | 69 | _ruler(new Ruler(*this)), |
1d8dca91 | 70 | _header(new Header(*this)), |
adb4b10c JH |
71 | _data_length(0), |
72 | _scale(1e-6), | |
73 | _offset(0), | |
cbd80f64 | 74 | _v_offset(0), |
528bd8a1 | 75 | _updating_scroll(false), |
f76af637 | 76 | _show_cursors(false), |
b42d25c4 | 77 | _cursors(*this), |
cbd80f64 | 78 | _hover_point(-1, -1) |
adb4b10c | 79 | { |
b16907d3 JH |
80 | connect(horizontalScrollBar(), SIGNAL(valueChanged(int)), |
81 | this, SLOT(h_scroll_value_changed(int))); | |
adb4b10c JH |
82 | connect(verticalScrollBar(), SIGNAL(valueChanged(int)), |
83 | this, SLOT(v_scroll_value_changed(int))); | |
69dd2b03 JH |
84 | |
85 | connect(&_session, SIGNAL(signals_changed()), | |
86 | this, SLOT(signals_changed())); | |
adb4b10c JH |
87 | connect(&_session, SIGNAL(data_updated()), |
88 | this, SLOT(data_updated())); | |
1d8dca91 | 89 | |
58864c5c | 90 | connect(_cursors.first().get(), SIGNAL(time_changed()), |
ca4ec3ea | 91 | this, SLOT(marker_time_changed())); |
58864c5c | 92 | connect(_cursors.second().get(), SIGNAL(time_changed()), |
ca4ec3ea JH |
93 | this, SLOT(marker_time_changed())); |
94 | ||
d7c0ca4a JH |
95 | connect(_header, SIGNAL(geometry_updated()), |
96 | this, SLOT(on_geometry_updated())); | |
54401bbb | 97 | connect(_header, SIGNAL(signals_moved()), |
07204819 | 98 | this, SLOT(on_signals_moved())); |
54401bbb | 99 | |
17348f85 JH |
100 | connect(_header, SIGNAL(selection_changed()), |
101 | _ruler, SLOT(clear_selection())); | |
102 | connect(_ruler, SIGNAL(selection_changed()), | |
103 | _header, SLOT(clear_selection())); | |
104 | ||
8b454527 JH |
105 | connect(_header, SIGNAL(selection_changed()), |
106 | this, SIGNAL(selection_changed())); | |
107 | connect(_ruler, SIGNAL(selection_changed()), | |
108 | this, SIGNAL(selection_changed())); | |
109 | ||
adb4b10c | 110 | setViewport(_viewport); |
cbd80f64 JH |
111 | |
112 | _viewport->installEventFilter(this); | |
113 | _ruler->installEventFilter(this); | |
114 | _header->installEventFilter(this); | |
adb4b10c JH |
115 | } |
116 | ||
1d19ef83 JH |
117 | SigSession& View::session() |
118 | { | |
119 | return _session; | |
120 | } | |
121 | ||
38eeddea JH |
122 | const SigSession& View::session() const |
123 | { | |
124 | return _session; | |
125 | } | |
126 | ||
cdf7bea7 | 127 | double View::scale() const |
adb4b10c JH |
128 | { |
129 | return _scale; | |
130 | } | |
131 | ||
cdf7bea7 | 132 | double View::offset() const |
adb4b10c JH |
133 | { |
134 | return _offset; | |
135 | } | |
136 | ||
cdf7bea7 | 137 | int View::v_offset() const |
adb4b10c JH |
138 | { |
139 | return _v_offset; | |
140 | } | |
141 | ||
cdf7bea7 | 142 | void View::zoom(double steps) |
adb4b10c | 143 | { |
f3f98f8f | 144 | zoom(steps, _viewport->width() / 2); |
adb4b10c JH |
145 | } |
146 | ||
17c0f398 JH |
147 | void View::zoom(double steps, int offset) |
148 | { | |
e31551da JH |
149 | const double new_scale = max(min(_scale * pow(3.0/2.0, -steps), |
150 | MaxScale), MinScale); | |
d1e7d82c | 151 | set_zoom(new_scale, offset); |
17c0f398 JH |
152 | } |
153 | ||
ca46b534 JH |
154 | void View::zoom_fit() |
155 | { | |
156 | using pv::data::SignalData; | |
157 | ||
158 | const vector< shared_ptr<Signal> > sigs( | |
159 | session().get_signals()); | |
160 | ||
161 | // Make a set of all the visible data objects | |
162 | set< shared_ptr<SignalData> > visible_data; | |
163 | BOOST_FOREACH(const shared_ptr<Signal> sig, sigs) | |
164 | if (sig->enabled()) | |
165 | visible_data.insert(sig->data()); | |
166 | ||
167 | if (visible_data.empty()) | |
168 | return; | |
169 | ||
170 | double left_time = DBL_MAX, right_time = DBL_MIN; | |
171 | BOOST_FOREACH(const shared_ptr<SignalData> d, visible_data) | |
172 | { | |
173 | const double start_time = d->get_start_time(); | |
174 | left_time = min(left_time, start_time); | |
175 | right_time = max(right_time, start_time + | |
9d28da5a | 176 | d->get_max_sample_count() / d->samplerate()); |
ca46b534 JH |
177 | } |
178 | ||
179 | assert(left_time < right_time); | |
180 | if (right_time - left_time < 1e-12) | |
181 | return; | |
182 | ||
183 | assert(_viewport); | |
184 | const int w = _viewport->width(); | |
185 | if (w <= 0) | |
186 | return; | |
187 | ||
188 | set_scale_offset((right_time - left_time) / w, left_time); | |
189 | } | |
190 | ||
d1e7d82c JH |
191 | void View::zoom_one_to_one() |
192 | { | |
193 | using pv::data::SignalData; | |
194 | ||
195 | const vector< shared_ptr<Signal> > sigs( | |
196 | session().get_signals()); | |
197 | ||
198 | // Make a set of all the visible data objects | |
199 | set< shared_ptr<SignalData> > visible_data; | |
200 | BOOST_FOREACH(const shared_ptr<Signal> sig, sigs) | |
201 | if (sig->enabled()) | |
202 | visible_data.insert(sig->data()); | |
203 | ||
204 | if (visible_data.empty()) | |
205 | return; | |
206 | ||
207 | double samplerate = 0.0; | |
208 | BOOST_FOREACH(const shared_ptr<SignalData> d, visible_data) { | |
209 | assert(d); | |
210 | samplerate = max(samplerate, d->samplerate()); | |
211 | } | |
212 | ||
213 | if (samplerate == 0.0) | |
214 | return; | |
215 | ||
216 | assert(_viewport); | |
217 | const int w = _viewport->width(); | |
218 | if (w <= 0) | |
219 | return; | |
220 | ||
221 | set_zoom(1.0 / samplerate, w / 2); | |
222 | } | |
223 | ||
cdf7bea7 | 224 | void View::set_scale_offset(double scale, double offset) |
adb4b10c JH |
225 | { |
226 | _scale = scale; | |
227 | _offset = offset; | |
ccdd3ef5 | 228 | |
adb4b10c | 229 | update_scroll(); |
ccdd3ef5 | 230 | _ruler->update(); |
adb4b10c | 231 | _viewport->update(); |
e0fc5810 | 232 | scale_offset_changed(); |
adb4b10c JH |
233 | } |
234 | ||
38eeddea JH |
235 | vector< shared_ptr<Trace> > View::get_traces() const |
236 | { | |
237 | const vector< shared_ptr<Signal> > sigs( | |
238 | session().get_signals()); | |
b9329558 | 239 | const vector< shared_ptr<DecodeTrace> > decode_sigs( |
38eeddea JH |
240 | session().get_decode_signals()); |
241 | vector< shared_ptr<Trace> > traces( | |
242 | sigs.size() + decode_sigs.size()); | |
243 | ||
244 | vector< shared_ptr<Trace> >::iterator i = traces.begin(); | |
245 | i = copy(sigs.begin(), sigs.end(), i); | |
246 | i = copy(decode_sigs.begin(), decode_sigs.end(), i); | |
247 | ||
9a2bc5fc | 248 | stable_sort(traces.begin(), traces.end(), compare_trace_v_offsets); |
38eeddea JH |
249 | return traces; |
250 | } | |
251 | ||
94936133 JH |
252 | list<weak_ptr<SelectableItem> > View::selected_items() const |
253 | { | |
254 | list<weak_ptr<SelectableItem> > items; | |
255 | ||
256 | // List the selected signals | |
38eeddea JH |
257 | const vector< shared_ptr<Trace> > traces(get_traces()); |
258 | BOOST_FOREACH (shared_ptr<Trace> t, traces) { | |
259 | assert(t); | |
260 | if (t->selected()) | |
261 | items.push_back(t); | |
94936133 JH |
262 | } |
263 | ||
264 | // List the selected cursors | |
265 | if (_cursors.first()->selected()) | |
266 | items.push_back(_cursors.first()); | |
267 | if (_cursors.second()->selected()) | |
268 | items.push_back(_cursors.second()); | |
269 | ||
270 | return items; | |
271 | } | |
272 | ||
f76af637 JH |
273 | bool View::cursors_shown() const |
274 | { | |
275 | return _show_cursors; | |
276 | } | |
277 | ||
278 | void View::show_cursors(bool show) | |
279 | { | |
280 | _show_cursors = show; | |
281 | _ruler->update(); | |
282 | _viewport->update(); | |
283 | } | |
284 | ||
b4d91e56 JH |
285 | void View::centre_cursors() |
286 | { | |
287 | const double time_width = _scale * _viewport->width(); | |
58864c5c JH |
288 | _cursors.first()->set_time(_offset + time_width * 0.4); |
289 | _cursors.second()->set_time(_offset + time_width * 0.6); | |
b4d91e56 JH |
290 | _ruler->update(); |
291 | _viewport->update(); | |
292 | } | |
293 | ||
b42d25c4 | 294 | CursorPair& View::cursors() |
f76af637 JH |
295 | { |
296 | return _cursors; | |
297 | } | |
298 | ||
58864c5c JH |
299 | const CursorPair& View::cursors() const |
300 | { | |
301 | return _cursors; | |
302 | } | |
303 | ||
cbd80f64 JH |
304 | const QPoint& View::hover_point() const |
305 | { | |
306 | return _hover_point; | |
307 | } | |
308 | ||
4b192962 JH |
309 | void View::normalize_layout() |
310 | { | |
38eeddea | 311 | const vector< shared_ptr<Trace> > traces(get_traces()); |
4b192962 JH |
312 | |
313 | int v_min = INT_MAX; | |
38eeddea JH |
314 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) |
315 | v_min = min(t->get_v_offset(), v_min); | |
4b192962 JH |
316 | |
317 | const int delta = -min(v_min, 0); | |
38eeddea JH |
318 | BOOST_FOREACH(shared_ptr<Trace> t, traces) |
319 | t->set_v_offset(t->get_v_offset() + delta); | |
4b192962 JH |
320 | |
321 | verticalScrollBar()->setSliderPosition(_v_offset + delta); | |
322 | v_scroll_value_changed(verticalScrollBar()->sliderPosition()); | |
323 | } | |
324 | ||
9cef9567 JH |
325 | void View::update_viewport() |
326 | { | |
327 | assert(_viewport); | |
328 | _viewport->update(); | |
329 | } | |
330 | ||
f25770e2 JH |
331 | void View::get_scroll_layout(double &length, double &offset) const |
332 | { | |
1b1ec774 | 333 | const shared_ptr<data::SignalData> sig_data = _session.get_data(); |
333d5bbc | 334 | if (!sig_data) |
f25770e2 JH |
335 | return; |
336 | ||
9d28da5a | 337 | length = _data_length / (sig_data->samplerate() * _scale); |
f25770e2 JH |
338 | offset = _offset / _scale; |
339 | } | |
340 | ||
d1e7d82c JH |
341 | void View::set_zoom(double scale, int offset) |
342 | { | |
343 | const double cursor_offset = _offset + _scale * offset; | |
344 | const double new_scale = max(min(scale, MaxScale), MinScale); | |
345 | const double new_offset = cursor_offset - new_scale * offset; | |
346 | set_scale_offset(new_scale, new_offset); | |
347 | } | |
348 | ||
cdf7bea7 | 349 | void View::update_scroll() |
adb4b10c JH |
350 | { |
351 | assert(_viewport); | |
352 | ||
353 | const QSize areaSize = _viewport->size(); | |
354 | ||
355 | // Set the horizontal scroll bar | |
356 | double length = 0, offset = 0; | |
f25770e2 JH |
357 | get_scroll_layout(length, offset); |
358 | length = max(length - areaSize.width(), 0.0); | |
adb4b10c | 359 | |
b4ef7f2a | 360 | horizontalScrollBar()->setPageStep(areaSize.width() / 2); |
f25770e2 | 361 | |
528bd8a1 JH |
362 | _updating_scroll = true; |
363 | ||
333d5bbc | 364 | if (length < MaxScrollValue) { |
f25770e2 JH |
365 | horizontalScrollBar()->setRange(0, length); |
366 | horizontalScrollBar()->setSliderPosition(offset); | |
367 | } else { | |
368 | horizontalScrollBar()->setRange(0, MaxScrollValue); | |
369 | horizontalScrollBar()->setSliderPosition( | |
370 | _offset * MaxScrollValue / (_scale * length)); | |
371 | } | |
adb4b10c | 372 | |
528bd8a1 JH |
373 | _updating_scroll = false; |
374 | ||
adb4b10c JH |
375 | // Set the vertical scrollbar |
376 | verticalScrollBar()->setPageStep(areaSize.height()); | |
377 | verticalScrollBar()->setRange(0, | |
4b192962 JH |
378 | _viewport->get_total_height() + SignalMargin - |
379 | areaSize.height()); | |
adb4b10c JH |
380 | } |
381 | ||
d7c0ca4a JH |
382 | void View::update_layout() |
383 | { | |
a6c1726e JH |
384 | setViewportMargins(_header->sizeHint().width(), |
385 | _ruler->sizeHint().height(), 0, 0); | |
d7c0ca4a JH |
386 | _ruler->setGeometry(_viewport->x(), 0, |
387 | _viewport->width(), _viewport->y()); | |
388 | _header->setGeometry(0, _viewport->y(), | |
389 | _viewport->x(), _viewport->height()); | |
390 | update_scroll(); | |
391 | } | |
392 | ||
38eeddea JH |
393 | bool View::compare_trace_v_offsets(const shared_ptr<Trace> &a, |
394 | const shared_ptr<Trace> &b) | |
395 | { | |
396 | assert(a); | |
397 | assert(b); | |
398 | return a->get_v_offset() < b->get_v_offset(); | |
399 | } | |
400 | ||
cbd80f64 JH |
401 | bool View::eventFilter(QObject *object, QEvent *event) |
402 | { | |
403 | const QEvent::Type type = event->type(); | |
333d5bbc | 404 | if (type == QEvent::MouseMove) { |
cbd80f64 JH |
405 | |
406 | const QMouseEvent *const mouse_event = (QMouseEvent*)event; | |
333d5bbc | 407 | if (object == _viewport) |
cbd80f64 | 408 | _hover_point = mouse_event->pos(); |
333d5bbc | 409 | else if (object == _ruler) |
cbd80f64 | 410 | _hover_point = QPoint(mouse_event->x(), 0); |
333d5bbc | 411 | else if (object == _header) |
cbd80f64 JH |
412 | _hover_point = QPoint(0, mouse_event->y()); |
413 | else | |
414 | _hover_point = QPoint(-1, -1); | |
415 | ||
416 | hover_point_changed(); | |
417 | ||
333d5bbc | 418 | } else if (type == QEvent::Leave) { |
cbd80f64 JH |
419 | _hover_point = QPoint(-1, -1); |
420 | hover_point_changed(); | |
421 | } | |
422 | ||
423 | return QObject::eventFilter(object, event); | |
424 | } | |
425 | ||
cdf7bea7 | 426 | bool View::viewportEvent(QEvent *e) |
adb4b10c JH |
427 | { |
428 | switch(e->type()) { | |
429 | case QEvent::Paint: | |
430 | case QEvent::MouseButtonPress: | |
431 | case QEvent::MouseButtonRelease: | |
432 | case QEvent::MouseButtonDblClick: | |
433 | case QEvent::MouseMove: | |
434 | case QEvent::Wheel: | |
435 | return false; | |
436 | ||
437 | default: | |
438 | return QAbstractScrollArea::viewportEvent(e); | |
439 | } | |
440 | } | |
441 | ||
e314eca4 | 442 | void View::resizeEvent(QResizeEvent*) |
adb4b10c | 443 | { |
d7c0ca4a | 444 | update_layout(); |
adb4b10c JH |
445 | } |
446 | ||
b16907d3 | 447 | void View::h_scroll_value_changed(int value) |
adb4b10c | 448 | { |
528bd8a1 JH |
449 | if (_updating_scroll) |
450 | return; | |
451 | ||
f25770e2 | 452 | const int range = horizontalScrollBar()->maximum(); |
333d5bbc | 453 | if (range < MaxScrollValue) |
f25770e2 JH |
454 | _offset = _scale * value; |
455 | else { | |
456 | double length = 0, offset; | |
457 | get_scroll_layout(length, offset); | |
458 | _offset = _scale * length * value / MaxScrollValue; | |
459 | } | |
460 | ||
ccdd3ef5 | 461 | _ruler->update(); |
adb4b10c JH |
462 | _viewport->update(); |
463 | } | |
464 | ||
cdf7bea7 | 465 | void View::v_scroll_value_changed(int value) |
adb4b10c JH |
466 | { |
467 | _v_offset = value; | |
1d8dca91 | 468 | _header->update(); |
adb4b10c JH |
469 | _viewport->update(); |
470 | } | |
471 | ||
69dd2b03 JH |
472 | void View::signals_changed() |
473 | { | |
ef8311a4 | 474 | int offset = SignalMargin + SignalHeight; |
01fd3263 JH |
475 | const vector< shared_ptr<Trace> > traces(get_traces()); |
476 | BOOST_FOREACH(shared_ptr<Trace> t, traces) { | |
477 | t->set_view(this); | |
01fd3263 | 478 | t->set_v_offset(offset); |
ef8311a4 JH |
479 | offset += SignalHeight + 2 * SignalMargin; |
480 | } | |
481 | ||
a6c1726e | 482 | update_layout(); |
ef8311a4 | 483 | normalize_layout(); |
69dd2b03 JH |
484 | } |
485 | ||
cdf7bea7 | 486 | void View::data_updated() |
adb4b10c JH |
487 | { |
488 | // Get the new data length | |
489 | _data_length = 0; | |
1b1ec774 | 490 | shared_ptr<data::Logic> sig_data = _session.get_data(); |
333d5bbc | 491 | if (sig_data) { |
1b1ec774 | 492 | deque< shared_ptr<data::LogicSnapshot> > &snapshots = |
adb4b10c | 493 | sig_data->get_snapshots(); |
1b1ec774 | 494 | BOOST_FOREACH(shared_ptr<data::LogicSnapshot> s, snapshots) |
333d5bbc | 495 | if (s) |
adb4b10c JH |
496 | _data_length = max(_data_length, |
497 | s->get_sample_count()); | |
498 | } | |
499 | ||
500 | // Update the scroll bars | |
501 | update_scroll(); | |
502 | ||
503 | // Repaint the view | |
504 | _viewport->update(); | |
505 | } | |
cdf7bea7 | 506 | |
ca4ec3ea JH |
507 | void View::marker_time_changed() |
508 | { | |
509 | _ruler->update(); | |
510 | _viewport->update(); | |
511 | } | |
512 | ||
07204819 | 513 | void View::on_signals_moved() |
54401bbb | 514 | { |
07204819 JH |
515 | update_scroll(); |
516 | signals_moved(); | |
54401bbb JH |
517 | } |
518 | ||
d7c0ca4a JH |
519 | void View::on_geometry_updated() |
520 | { | |
521 | update_layout(); | |
522 | } | |
523 | ||
cdf7bea7 JH |
524 | } // namespace view |
525 | } // namespace pv |