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