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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | extern "C" { | |
21 | #include <libsigrokdecode/libsigrokdecode.h> | |
22 | } | |
23 | ||
24 | #include <mutex> | |
25 | ||
26 | #include <extdef.h> | |
27 | ||
28 | #include <tuple> | |
29 | ||
30 | #include <boost/functional/hash.hpp> | |
31 | ||
32 | #include <QAction> | |
33 | #include <QApplication> | |
34 | #include <QComboBox> | |
35 | #include <QFormLayout> | |
36 | #include <QLabel> | |
37 | #include <QMenu> | |
38 | #include <QPushButton> | |
39 | #include <QToolTip> | |
40 | ||
41 | #include "decodetrace.hpp" | |
42 | #include "view.hpp" | |
43 | #include "viewport.hpp" | |
44 | ||
45 | #include <pv/globalsettings.hpp> | |
46 | #include <pv/session.hpp> | |
47 | #include <pv/strnatcmp.hpp> | |
48 | #include <pv/data/decodesignal.hpp> | |
49 | #include <pv/data/decode/annotation.hpp> | |
50 | #include <pv/data/decode/decoder.hpp> | |
51 | #include <pv/data/logic.hpp> | |
52 | #include <pv/data/logicsegment.hpp> | |
53 | #include <pv/widgets/decodergroupbox.hpp> | |
54 | #include <pv/widgets/decodermenu.hpp> | |
55 | ||
56 | using std::all_of; | |
57 | using std::make_pair; | |
58 | using std::max; | |
59 | using std::min; | |
60 | using std::out_of_range; | |
61 | using std::pair; | |
62 | using std::shared_ptr; | |
63 | using std::tie; | |
64 | using std::vector; | |
65 | ||
66 | using pv::data::decode::Annotation; | |
67 | using pv::data::decode::Row; | |
68 | using pv::data::DecodeChannel; | |
69 | using pv::data::DecodeSignal; | |
70 | ||
71 | namespace pv { | |
72 | namespace views { | |
73 | namespace trace { | |
74 | ||
75 | ||
76 | #define DECODETRACE_COLOR_SATURATION (180) /* 0-255 */ | |
77 | #define DECODETRACE_COLOR_VALUE (170) /* 0-255 */ | |
78 | ||
79 | const QColor DecodeTrace::ErrorBgColor = QColor(0xEF, 0x29, 0x29); | |
80 | const QColor DecodeTrace::NoDecodeColor = QColor(0x88, 0x8A, 0x85); | |
81 | ||
82 | const int DecodeTrace::ArrowSize = 4; | |
83 | const double DecodeTrace::EndCapWidth = 5; | |
84 | const int DecodeTrace::RowTitleMargin = 10; | |
85 | const int DecodeTrace::DrawPadding = 100; | |
86 | ||
87 | const int DecodeTrace::MaxTraceUpdateRate = 1; // No more than 1 Hz | |
88 | ||
89 | DecodeTrace::DecodeTrace(pv::Session &session, | |
90 | shared_ptr<data::SignalBase> signalbase, int index) : | |
91 | Trace(signalbase), | |
92 | session_(session), | |
93 | row_height_(0), | |
94 | max_visible_rows_(0), | |
95 | delete_mapper_(this), | |
96 | show_hide_mapper_(this) | |
97 | { | |
98 | decode_signal_ = dynamic_pointer_cast<data::DecodeSignal>(base_); | |
99 | ||
100 | // Determine shortest string we want to see displayed in full | |
101 | QFontMetrics m(QApplication::font()); | |
102 | min_useful_label_width_ = m.width("XX"); // e.g. two hex characters | |
103 | ||
104 | // For the base color, we want to start at a very different color for | |
105 | // every decoder stack, so multiply the index with a number that is | |
106 | // rather close to 180 degrees of the color circle but not a dividend of 360 | |
107 | // Note: The offset equals the color of the first annotation | |
108 | QColor color; | |
109 | const int h = (120 + 160 * index) % 360; | |
110 | const int s = DECODETRACE_COLOR_SATURATION; | |
111 | const int v = DECODETRACE_COLOR_VALUE; | |
112 | color.setHsv(h, s, v); | |
113 | base_->set_color(color); | |
114 | ||
115 | connect(decode_signal_.get(), SIGNAL(new_annotations()), | |
116 | this, SLOT(on_new_annotations())); | |
117 | connect(decode_signal_.get(), SIGNAL(decode_reset()), | |
118 | this, SLOT(on_decode_reset())); | |
119 | connect(decode_signal_.get(), SIGNAL(decode_finished()), | |
120 | this, SLOT(on_decode_finished())); | |
121 | connect(decode_signal_.get(), SIGNAL(channels_updated()), | |
122 | this, SLOT(on_channels_updated())); | |
123 | ||
124 | connect(&delete_mapper_, SIGNAL(mapped(int)), | |
125 | this, SLOT(on_delete_decoder(int))); | |
126 | connect(&show_hide_mapper_, SIGNAL(mapped(int)), | |
127 | this, SLOT(on_show_hide_decoder(int))); | |
128 | ||
129 | connect(&delayed_trace_updater_, SIGNAL(timeout()), | |
130 | this, SLOT(on_delayed_trace_update())); | |
131 | delayed_trace_updater_.setSingleShot(true); | |
132 | delayed_trace_updater_.setInterval(1000 / MaxTraceUpdateRate); | |
133 | } | |
134 | ||
135 | bool DecodeTrace::enabled() const | |
136 | { | |
137 | return true; | |
138 | } | |
139 | ||
140 | shared_ptr<data::SignalBase> DecodeTrace::base() const | |
141 | { | |
142 | return base_; | |
143 | } | |
144 | ||
145 | pair<int, int> DecodeTrace::v_extents() const | |
146 | { | |
147 | const int row_height = (ViewItemPaintParams::text_height() * 6) / 4; | |
148 | ||
149 | // Make an empty decode trace appear symmetrical | |
150 | const int row_count = max(1, max_visible_rows_); | |
151 | ||
152 | return make_pair(-row_height, row_height * row_count); | |
153 | } | |
154 | ||
155 | void DecodeTrace::paint_back(QPainter &p, ViewItemPaintParams &pp) | |
156 | { | |
157 | Trace::paint_back(p, pp); | |
158 | paint_axis(p, pp, get_visual_y()); | |
159 | } | |
160 | ||
161 | void DecodeTrace::paint_mid(QPainter &p, ViewItemPaintParams &pp) | |
162 | { | |
163 | const int text_height = ViewItemPaintParams::text_height(); | |
164 | row_height_ = (text_height * 6) / 4; | |
165 | const int annotation_height = (text_height * 5) / 4; | |
166 | ||
167 | const QString err = decode_signal_->error_message(); | |
168 | if (!err.isEmpty()) { | |
169 | draw_unresolved_period( | |
170 | p, annotation_height, pp.left(), pp.right()); | |
171 | draw_error(p, err, pp); | |
172 | return; | |
173 | } | |
174 | ||
175 | // Set default pen to allow for text width calculation | |
176 | p.setPen(Qt::black); | |
177 | ||
178 | // Iterate through the rows | |
179 | int y = get_visual_y(); | |
180 | pair<uint64_t, uint64_t> sample_range = get_sample_range( | |
181 | pp.left(), pp.right()); | |
182 | ||
183 | const vector<Row> rows = decode_signal_->visible_rows(); | |
184 | ||
185 | visible_rows_.clear(); | |
186 | for (const Row& row : rows) { | |
187 | // Cache the row title widths | |
188 | int row_title_width; | |
189 | try { | |
190 | row_title_width = row_title_widths_.at(row); | |
191 | } catch (out_of_range&) { | |
192 | const int w = p.boundingRect(QRectF(), 0, row.title()).width() + | |
193 | RowTitleMargin; | |
194 | row_title_widths_[row] = w; | |
195 | row_title_width = w; | |
196 | } | |
197 | ||
198 | vector<Annotation> annotations; | |
199 | decode_signal_->get_annotation_subset(annotations, row, | |
200 | current_segment_, sample_range.first, sample_range.second); | |
201 | if (!annotations.empty()) { | |
202 | draw_annotations(annotations, p, annotation_height, pp, y, | |
203 | get_row_color(visible_rows_.size()), row_title_width); | |
204 | ||
205 | y += row_height_; | |
206 | ||
207 | visible_rows_.push_back(row); | |
208 | } | |
209 | } | |
210 | ||
211 | // Draw the hatching | |
212 | draw_unresolved_period(p, annotation_height, pp.left(), pp.right()); | |
213 | ||
214 | if ((int)visible_rows_.size() > max_visible_rows_) { | |
215 | max_visible_rows_ = (int)visible_rows_.size(); | |
216 | ||
217 | // Call order is important, otherwise the lazy event handler won't work | |
218 | owner_->extents_changed(false, true); | |
219 | owner_->row_item_appearance_changed(false, true); | |
220 | } | |
221 | } | |
222 | ||
223 | void DecodeTrace::paint_fore(QPainter &p, ViewItemPaintParams &pp) | |
224 | { | |
225 | assert(row_height_); | |
226 | ||
227 | for (size_t i = 0; i < visible_rows_.size(); i++) { | |
228 | const int y = i * row_height_ + get_visual_y(); | |
229 | ||
230 | p.setPen(QPen(Qt::NoPen)); | |
231 | p.setBrush(QApplication::palette().brush(QPalette::WindowText)); | |
232 | ||
233 | if (i != 0) { | |
234 | const QPointF points[] = { | |
235 | QPointF(pp.left(), y - ArrowSize), | |
236 | QPointF(pp.left() + ArrowSize, y), | |
237 | QPointF(pp.left(), y + ArrowSize) | |
238 | }; | |
239 | p.drawPolygon(points, countof(points)); | |
240 | } | |
241 | ||
242 | const QRect r(pp.left() + ArrowSize * 2, y - row_height_ / 2, | |
243 | pp.right() - pp.left(), row_height_); | |
244 | const QString h(visible_rows_[i].title()); | |
245 | const int f = Qt::AlignLeft | Qt::AlignVCenter | | |
246 | Qt::TextDontClip; | |
247 | ||
248 | // Draw the outline | |
249 | p.setPen(QApplication::palette().color(QPalette::Base)); | |
250 | for (int dx = -1; dx <= 1; dx++) | |
251 | for (int dy = -1; dy <= 1; dy++) | |
252 | if (dx != 0 && dy != 0) | |
253 | p.drawText(r.translated(dx, dy), f, h); | |
254 | ||
255 | // Draw the text | |
256 | p.setPen(QApplication::palette().color(QPalette::WindowText)); | |
257 | p.drawText(r, f, h); | |
258 | } | |
259 | } | |
260 | ||
261 | void DecodeTrace::populate_popup_form(QWidget *parent, QFormLayout *form) | |
262 | { | |
263 | using pv::data::decode::Decoder; | |
264 | ||
265 | assert(form); | |
266 | ||
267 | // Add the standard options | |
268 | Trace::populate_popup_form(parent, form); | |
269 | ||
270 | // Add the decoder options | |
271 | bindings_.clear(); | |
272 | channel_id_map_.clear(); | |
273 | init_state_map_.clear(); | |
274 | decoder_forms_.clear(); | |
275 | ||
276 | const vector< shared_ptr<Decoder> > &stack = decode_signal_->decoder_stack(); | |
277 | ||
278 | if (stack.empty()) { | |
279 | QLabel *const l = new QLabel( | |
280 | tr("<p><i>No decoders in the stack</i></p>")); | |
281 | l->setAlignment(Qt::AlignCenter); | |
282 | form->addRow(l); | |
283 | } else { | |
284 | auto iter = stack.cbegin(); | |
285 | for (int i = 0; i < (int)stack.size(); i++, iter++) { | |
286 | shared_ptr<Decoder> dec(*iter); | |
287 | create_decoder_form(i, dec, parent, form); | |
288 | } | |
289 | ||
290 | form->addRow(new QLabel( | |
291 | tr("<i>* Required channels</i>"), parent)); | |
292 | } | |
293 | ||
294 | // Add stacking button | |
295 | pv::widgets::DecoderMenu *const decoder_menu = | |
296 | new pv::widgets::DecoderMenu(parent); | |
297 | connect(decoder_menu, SIGNAL(decoder_selected(srd_decoder*)), | |
298 | this, SLOT(on_stack_decoder(srd_decoder*))); | |
299 | ||
300 | QPushButton *const stack_button = | |
301 | new QPushButton(tr("Stack Decoder"), parent); | |
302 | stack_button->setMenu(decoder_menu); | |
303 | stack_button->setToolTip(tr("Stack a higher-level decoder on top of this one")); | |
304 | ||
305 | QHBoxLayout *stack_button_box = new QHBoxLayout; | |
306 | stack_button_box->addWidget(stack_button, 0, Qt::AlignRight); | |
307 | form->addRow(stack_button_box); | |
308 | } | |
309 | ||
310 | QMenu* DecodeTrace::create_context_menu(QWidget *parent) | |
311 | { | |
312 | QMenu *const menu = Trace::create_context_menu(parent); | |
313 | ||
314 | menu->addSeparator(); | |
315 | ||
316 | QAction *const del = new QAction(tr("Delete"), this); | |
317 | del->setShortcuts(QKeySequence::Delete); | |
318 | connect(del, SIGNAL(triggered()), this, SLOT(on_delete())); | |
319 | menu->addAction(del); | |
320 | ||
321 | return menu; | |
322 | } | |
323 | ||
324 | void DecodeTrace::draw_annotations(vector<pv::data::decode::Annotation> annotations, | |
325 | QPainter &p, int h, const ViewItemPaintParams &pp, int y, | |
326 | QColor row_color, int row_title_width) | |
327 | { | |
328 | using namespace pv::data::decode; | |
329 | ||
330 | vector<Annotation> a_block; | |
331 | int p_end = INT_MIN; | |
332 | ||
333 | double samples_per_pixel, pixels_offset; | |
334 | tie(pixels_offset, samples_per_pixel) = | |
335 | get_pixels_offset_samples_per_pixel(); | |
336 | ||
337 | // Sort the annotations by start sample so that decoders | |
338 | // can't confuse us by creating annotations out of order | |
339 | stable_sort(annotations.begin(), annotations.end(), | |
340 | [](const Annotation &a, const Annotation &b) { | |
341 | return a.start_sample() < b.start_sample(); }); | |
342 | ||
343 | // Gather all annotations that form a visual "block" and draw them as such | |
344 | for (const Annotation &a : annotations) { | |
345 | ||
346 | const int a_start = a.start_sample() / samples_per_pixel - pixels_offset; | |
347 | const int a_end = a.end_sample() / samples_per_pixel - pixels_offset; | |
348 | const int a_width = a_end - a_start; | |
349 | ||
350 | const int delta = a_end - p_end; | |
351 | ||
352 | bool a_is_separate = false; | |
353 | ||
354 | // Annotation wider than the threshold for a useful label width? | |
355 | if (a_width >= min_useful_label_width_) { | |
356 | for (const QString &ann_text : a.annotations()) { | |
357 | const int w = p.boundingRect(QRectF(), 0, ann_text).width(); | |
358 | // Annotation wide enough to fit a label? Don't put it in a block then | |
359 | if (w <= a_width) { | |
360 | a_is_separate = true; | |
361 | break; | |
362 | } | |
363 | } | |
364 | } | |
365 | ||
366 | // Were the previous and this annotation more than a pixel apart? | |
367 | if ((abs(delta) > 1) || a_is_separate) { | |
368 | // Block was broken, draw annotations that form the current block | |
369 | if (a_block.size() == 1) { | |
370 | draw_annotation(a_block.front(), p, h, pp, y, row_color, | |
371 | row_title_width); | |
372 | } | |
373 | else | |
374 | draw_annotation_block(a_block, p, h, y, row_color); | |
375 | ||
376 | a_block.clear(); | |
377 | } | |
378 | ||
379 | if (a_is_separate) { | |
380 | draw_annotation(a, p, h, pp, y, row_color, row_title_width); | |
381 | // Next annotation must start a new block. delta will be > 1 | |
382 | // because we set p_end to INT_MIN but that's okay since | |
383 | // a_block will be empty, so nothing will be drawn | |
384 | p_end = INT_MIN; | |
385 | } else { | |
386 | a_block.push_back(a); | |
387 | p_end = a_end; | |
388 | } | |
389 | } | |
390 | ||
391 | if (a_block.size() == 1) | |
392 | draw_annotation(a_block.front(), p, h, pp, y, row_color, row_title_width); | |
393 | else | |
394 | draw_annotation_block(a_block, p, h, y, row_color); | |
395 | } | |
396 | ||
397 | void DecodeTrace::draw_annotation(const pv::data::decode::Annotation &a, | |
398 | QPainter &p, int h, const ViewItemPaintParams &pp, int y, | |
399 | QColor row_color, int row_title_width) const | |
400 | { | |
401 | double samples_per_pixel, pixels_offset; | |
402 | tie(pixels_offset, samples_per_pixel) = | |
403 | get_pixels_offset_samples_per_pixel(); | |
404 | ||
405 | const double start = a.start_sample() / samples_per_pixel - | |
406 | pixels_offset; | |
407 | const double end = a.end_sample() / samples_per_pixel - pixels_offset; | |
408 | ||
409 | QColor color = get_annotation_color(row_color, a.ann_class()); | |
410 | p.setPen(color.darker()); | |
411 | p.setBrush(color); | |
412 | ||
413 | if (start > pp.right() + DrawPadding || end < pp.left() - DrawPadding) | |
414 | return; | |
415 | ||
416 | if (a.start_sample() == a.end_sample()) | |
417 | draw_instant(a, p, h, start, y); | |
418 | else | |
419 | draw_range(a, p, h, start, end, y, pp, row_title_width); | |
420 | } | |
421 | ||
422 | void DecodeTrace::draw_annotation_block( | |
423 | vector<pv::data::decode::Annotation> annotations, QPainter &p, int h, | |
424 | int y, QColor row_color) const | |
425 | { | |
426 | using namespace pv::data::decode; | |
427 | ||
428 | if (annotations.empty()) | |
429 | return; | |
430 | ||
431 | double samples_per_pixel, pixels_offset; | |
432 | tie(pixels_offset, samples_per_pixel) = | |
433 | get_pixels_offset_samples_per_pixel(); | |
434 | ||
435 | const double start = annotations.front().start_sample() / | |
436 | samples_per_pixel - pixels_offset; | |
437 | const double end = annotations.back().end_sample() / | |
438 | samples_per_pixel - pixels_offset; | |
439 | ||
440 | const double top = y + .5 - h / 2; | |
441 | const double bottom = y + .5 + h / 2; | |
442 | ||
443 | QColor color = get_annotation_color(row_color, annotations.front().ann_class()); | |
444 | ||
445 | // Check if all annotations are of the same type (i.e. we can use one color) | |
446 | // or if we should use a neutral color (i.e. gray) | |
447 | const Annotation::Class ann_class = annotations.front().ann_class(); | |
448 | const bool single_class = all_of( | |
449 | annotations.begin(), annotations.end(), | |
450 | [&](const Annotation &a) { return a.ann_class() == ann_class; }); | |
451 | ||
452 | const QRectF rect(start, top, end - start, bottom - top); | |
453 | const int r = h / 4; | |
454 | ||
455 | p.setPen(QPen(Qt::NoPen)); | |
456 | p.setBrush(Qt::white); | |
457 | p.drawRoundedRect(rect, r, r); | |
458 | ||
459 | p.setPen((single_class ? color.darker() : Qt::gray)); | |
460 | p.setBrush(QBrush((single_class ? color : Qt::gray), Qt::Dense4Pattern)); | |
461 | p.drawRoundedRect(rect, r, r); | |
462 | } | |
463 | ||
464 | void DecodeTrace::draw_instant(const pv::data::decode::Annotation &a, QPainter &p, | |
465 | int h, double x, int y) const | |
466 | { | |
467 | const QString text = a.annotations().empty() ? | |
468 | QString() : a.annotations().back(); | |
469 | const double w = min((double)p.boundingRect(QRectF(), 0, text).width(), | |
470 | 0.0) + h; | |
471 | const QRectF rect(x - w / 2, y - h / 2, w, h); | |
472 | ||
473 | p.drawRoundedRect(rect, h / 2, h / 2); | |
474 | ||
475 | p.setPen(Qt::black); | |
476 | p.drawText(rect, Qt::AlignCenter | Qt::AlignVCenter, text); | |
477 | } | |
478 | ||
479 | void DecodeTrace::draw_range(const pv::data::decode::Annotation &a, QPainter &p, | |
480 | int h, double start, double end, int y, const ViewItemPaintParams &pp, | |
481 | int row_title_width) const | |
482 | { | |
483 | const double top = y + .5 - h / 2; | |
484 | const double bottom = y + .5 + h / 2; | |
485 | const vector<QString> annotations = a.annotations(); | |
486 | ||
487 | // If the two ends are within 1 pixel, draw a vertical line | |
488 | if (start + 1.0 > end) { | |
489 | p.drawLine(QPointF(start, top), QPointF(start, bottom)); | |
490 | return; | |
491 | } | |
492 | ||
493 | const double cap_width = min((end - start) / 4, EndCapWidth); | |
494 | ||
495 | QPointF pts[] = { | |
496 | QPointF(start, y + .5f), | |
497 | QPointF(start + cap_width, top), | |
498 | QPointF(end - cap_width, top), | |
499 | QPointF(end, y + .5f), | |
500 | QPointF(end - cap_width, bottom), | |
501 | QPointF(start + cap_width, bottom) | |
502 | }; | |
503 | ||
504 | p.drawConvexPolygon(pts, countof(pts)); | |
505 | ||
506 | if (annotations.empty()) | |
507 | return; | |
508 | ||
509 | const int ann_start = start + cap_width; | |
510 | const int ann_end = end - cap_width; | |
511 | ||
512 | const int real_start = max(ann_start, pp.left() + row_title_width); | |
513 | const int real_end = min(ann_end, pp.right()); | |
514 | const int real_width = real_end - real_start; | |
515 | ||
516 | QRectF rect(real_start, y - h / 2, real_width, h); | |
517 | if (rect.width() <= 4) | |
518 | return; | |
519 | ||
520 | p.setPen(Qt::black); | |
521 | ||
522 | // Try to find an annotation that will fit | |
523 | QString best_annotation; | |
524 | int best_width = 0; | |
525 | ||
526 | for (const QString &a : annotations) { | |
527 | const int w = p.boundingRect(QRectF(), 0, a).width(); | |
528 | if (w <= rect.width() && w > best_width) | |
529 | best_annotation = a, best_width = w; | |
530 | } | |
531 | ||
532 | if (best_annotation.isEmpty()) | |
533 | best_annotation = annotations.back(); | |
534 | ||
535 | // If not ellide the last in the list | |
536 | p.drawText(rect, Qt::AlignCenter, p.fontMetrics().elidedText( | |
537 | best_annotation, Qt::ElideRight, rect.width())); | |
538 | } | |
539 | ||
540 | void DecodeTrace::draw_error(QPainter &p, const QString &message, | |
541 | const ViewItemPaintParams &pp) | |
542 | { | |
543 | const int y = get_visual_y(); | |
544 | ||
545 | p.setPen(ErrorBgColor.darker()); | |
546 | p.setBrush(ErrorBgColor); | |
547 | ||
548 | const QRectF bounding_rect = | |
549 | QRectF(pp.left(), INT_MIN / 2 + y, pp.right(), INT_MAX); | |
550 | const QRectF text_rect = p.boundingRect(bounding_rect, | |
551 | Qt::AlignCenter, message); | |
552 | const float r = text_rect.height() / 4; | |
553 | ||
554 | p.drawRoundedRect(text_rect.adjusted(-r, -r, r, r), r, r, | |
555 | Qt::AbsoluteSize); | |
556 | ||
557 | p.setPen(Qt::black); | |
558 | p.drawText(text_rect, message); | |
559 | } | |
560 | ||
561 | void DecodeTrace::draw_unresolved_period(QPainter &p, int h, int left, int right) const | |
562 | { | |
563 | using namespace pv::data; | |
564 | using pv::data::decode::Decoder; | |
565 | ||
566 | double samples_per_pixel, pixels_offset; | |
567 | ||
568 | const int64_t sample_count = decode_signal_->get_working_sample_count(current_segment_); | |
569 | if (sample_count == 0) | |
570 | return; | |
571 | ||
572 | const int64_t samples_decoded = decode_signal_->get_decoded_sample_count(current_segment_); | |
573 | if (sample_count == samples_decoded) | |
574 | return; | |
575 | ||
576 | const int y = get_visual_y(); | |
577 | ||
578 | tie(pixels_offset, samples_per_pixel) = get_pixels_offset_samples_per_pixel(); | |
579 | ||
580 | const double start = max(samples_decoded / | |
581 | samples_per_pixel - pixels_offset, left - 1.0); | |
582 | const double end = min(sample_count / samples_per_pixel - | |
583 | pixels_offset, right + 1.0); | |
584 | const QRectF no_decode_rect(start, y - (h / 2) + 0.5, end - start, h); | |
585 | ||
586 | p.setPen(QPen(Qt::NoPen)); | |
587 | p.setBrush(Qt::white); | |
588 | p.drawRect(no_decode_rect); | |
589 | ||
590 | p.setPen(NoDecodeColor); | |
591 | p.setBrush(QBrush(NoDecodeColor, Qt::Dense6Pattern)); | |
592 | p.drawRect(no_decode_rect); | |
593 | } | |
594 | ||
595 | pair<double, double> DecodeTrace::get_pixels_offset_samples_per_pixel() const | |
596 | { | |
597 | assert(owner_); | |
598 | ||
599 | const View *view = owner_->view(); | |
600 | assert(view); | |
601 | ||
602 | const double scale = view->scale(); | |
603 | assert(scale > 0); | |
604 | ||
605 | const double pixels_offset = | |
606 | ((view->offset() - decode_signal_->start_time()) / scale).convert_to<double>(); | |
607 | ||
608 | double samplerate = decode_signal_->samplerate(); | |
609 | ||
610 | // Show sample rate as 1Hz when it is unknown | |
611 | if (samplerate == 0.0) | |
612 | samplerate = 1.0; | |
613 | ||
614 | return make_pair(pixels_offset, samplerate * scale); | |
615 | } | |
616 | ||
617 | pair<uint64_t, uint64_t> DecodeTrace::get_sample_range( | |
618 | int x_start, int x_end) const | |
619 | { | |
620 | double samples_per_pixel, pixels_offset; | |
621 | tie(pixels_offset, samples_per_pixel) = | |
622 | get_pixels_offset_samples_per_pixel(); | |
623 | ||
624 | const uint64_t start = (uint64_t)max( | |
625 | (x_start + pixels_offset) * samples_per_pixel, 0.0); | |
626 | const uint64_t end = (uint64_t)max( | |
627 | (x_end + pixels_offset) * samples_per_pixel, 0.0); | |
628 | ||
629 | return make_pair(start, end); | |
630 | } | |
631 | ||
632 | QColor DecodeTrace::get_row_color(int row_index) const | |
633 | { | |
634 | // For each row color, use the base color hue and add an offset that's | |
635 | // not a dividend of 360 | |
636 | ||
637 | QColor color; | |
638 | const int h = (base_->color().toHsv().hue() + 20 * row_index) % 360; | |
639 | const int s = DECODETRACE_COLOR_SATURATION; | |
640 | const int v = DECODETRACE_COLOR_VALUE; | |
641 | color.setHsl(h, s, v); | |
642 | ||
643 | return color; | |
644 | } | |
645 | ||
646 | QColor DecodeTrace::get_annotation_color(QColor row_color, int annotation_index) const | |
647 | { | |
648 | // For each row color, use the base color hue and add an offset that's | |
649 | // not a dividend of 360 and not a multiple of the row offset | |
650 | ||
651 | QColor color(row_color); | |
652 | const int h = (color.toHsv().hue() + 55 * annotation_index) % 360; | |
653 | const int s = DECODETRACE_COLOR_SATURATION; | |
654 | const int v = DECODETRACE_COLOR_VALUE; | |
655 | color.setHsl(h, s, v); | |
656 | ||
657 | return color; | |
658 | } | |
659 | ||
660 | int DecodeTrace::get_row_at_point(const QPoint &point) | |
661 | { | |
662 | if (!row_height_) | |
663 | return -1; | |
664 | ||
665 | const int y = (point.y() - get_visual_y() + row_height_ / 2); | |
666 | ||
667 | /* Integer divison of (x-1)/x would yield 0, so we check for this. */ | |
668 | if (y < 0) | |
669 | return -1; | |
670 | ||
671 | const int row = y / row_height_; | |
672 | ||
673 | if (row >= (int)visible_rows_.size()) | |
674 | return -1; | |
675 | ||
676 | return row; | |
677 | } | |
678 | ||
679 | const QString DecodeTrace::get_annotation_at_point(const QPoint &point) | |
680 | { | |
681 | using namespace pv::data::decode; | |
682 | ||
683 | if (!enabled()) | |
684 | return QString(); | |
685 | ||
686 | const pair<uint64_t, uint64_t> sample_range = | |
687 | get_sample_range(point.x(), point.x() + 1); | |
688 | const int row = get_row_at_point(point); | |
689 | if (row < 0) | |
690 | return QString(); | |
691 | ||
692 | vector<pv::data::decode::Annotation> annotations; | |
693 | ||
694 | decode_signal_->get_annotation_subset(annotations, visible_rows_[row], | |
695 | current_segment_, sample_range.first, sample_range.second); | |
696 | ||
697 | return (annotations.empty()) ? | |
698 | QString() : annotations[0].annotations().front(); | |
699 | } | |
700 | ||
701 | void DecodeTrace::hover_point_changed(const QPoint &hp) | |
702 | { | |
703 | assert(owner_); | |
704 | ||
705 | const View *const view = owner_->view(); | |
706 | assert(view); | |
707 | ||
708 | if (hp.x() == 0) { | |
709 | QToolTip::hideText(); | |
710 | return; | |
711 | } | |
712 | ||
713 | QString ann = get_annotation_at_point(hp); | |
714 | ||
715 | assert(view); | |
716 | ||
717 | if (!row_height_ || ann.isEmpty()) { | |
718 | QToolTip::hideText(); | |
719 | return; | |
720 | } | |
721 | ||
722 | const int hover_row = get_row_at_point(hp); | |
723 | ||
724 | QFontMetrics m(QToolTip::font()); | |
725 | const QRect text_size = m.boundingRect(QRect(), 0, ann); | |
726 | ||
727 | // This is OS-specific and unfortunately we can't query it, so | |
728 | // use an approximation to at least try to minimize the error. | |
729 | const int padding = 8; | |
730 | ||
731 | // Make sure the tool tip doesn't overlap with the mouse cursor. | |
732 | // If it did, the tool tip would constantly hide and re-appear. | |
733 | // We also push it up by one row so that it appears above the | |
734 | // decode trace, not below. | |
735 | QPoint p = hp; | |
736 | p.setX(hp.x() - (text_size.width() / 2) - padding); | |
737 | ||
738 | p.setY(get_visual_y() - (row_height_ / 2) + | |
739 | (hover_row * row_height_) - | |
740 | row_height_ - text_size.height() - padding); | |
741 | ||
742 | QToolTip::showText(view->viewport()->mapToGlobal(p), ann); | |
743 | } | |
744 | ||
745 | void DecodeTrace::create_decoder_form(int index, | |
746 | shared_ptr<data::decode::Decoder> &dec, QWidget *parent, | |
747 | QFormLayout *form) | |
748 | { | |
749 | GlobalSettings settings; | |
750 | ||
751 | assert(dec); | |
752 | const srd_decoder *const decoder = dec->decoder(); | |
753 | assert(decoder); | |
754 | ||
755 | const bool decoder_deletable = index > 0; | |
756 | ||
757 | pv::widgets::DecoderGroupBox *const group = | |
758 | new pv::widgets::DecoderGroupBox( | |
759 | QString::fromUtf8(decoder->name), | |
760 | tr("%1:\n%2").arg(QString::fromUtf8(decoder->longname), | |
761 | QString::fromUtf8(decoder->desc)), | |
762 | nullptr, decoder_deletable); | |
763 | group->set_decoder_visible(dec->shown()); | |
764 | ||
765 | if (decoder_deletable) { | |
766 | delete_mapper_.setMapping(group, index); | |
767 | connect(group, SIGNAL(delete_decoder()), &delete_mapper_, SLOT(map())); | |
768 | } | |
769 | ||
770 | show_hide_mapper_.setMapping(group, index); | |
771 | connect(group, SIGNAL(show_hide_decoder()), | |
772 | &show_hide_mapper_, SLOT(map())); | |
773 | ||
774 | QFormLayout *const decoder_form = new QFormLayout; | |
775 | group->add_layout(decoder_form); | |
776 | ||
777 | const vector<DecodeChannel> channels = decode_signal_->get_channels(); | |
778 | ||
779 | // Add the channels | |
780 | for (DecodeChannel ch : channels) { | |
781 | // Ignore channels not part of the decoder we create the form for | |
782 | if (ch.decoder_ != dec) | |
783 | continue; | |
784 | ||
785 | QComboBox *const combo = create_channel_selector(parent, &ch); | |
786 | QComboBox *const combo_init_state = create_channel_selector_init_state(parent, &ch); | |
787 | ||
788 | channel_id_map_[combo] = ch.id; | |
789 | init_state_map_[combo_init_state] = ch.id; | |
790 | ||
791 | connect(combo, SIGNAL(currentIndexChanged(int)), | |
792 | this, SLOT(on_channel_selected(int))); | |
793 | connect(combo_init_state, SIGNAL(currentIndexChanged(int)), | |
794 | this, SLOT(on_init_state_changed(int))); | |
795 | ||
796 | QHBoxLayout *const hlayout = new QHBoxLayout; | |
797 | hlayout->addWidget(combo); | |
798 | hlayout->addWidget(combo_init_state); | |
799 | ||
800 | if (!settings.value(GlobalSettings::Key_Dec_InitialStateConfigurable).toBool()) | |
801 | combo_init_state->hide(); | |
802 | ||
803 | const QString required_flag = ch.is_optional ? QString() : QString("*"); | |
804 | decoder_form->addRow(tr("<b>%1</b> (%2) %3") | |
805 | .arg(ch.name, ch.desc, required_flag), hlayout); | |
806 | } | |
807 | ||
808 | // Add the options | |
809 | shared_ptr<binding::Decoder> binding( | |
810 | new binding::Decoder(decode_signal_, dec)); | |
811 | binding->add_properties_to_form(decoder_form, true); | |
812 | ||
813 | bindings_.push_back(binding); | |
814 | ||
815 | form->addRow(group); | |
816 | decoder_forms_.push_back(group); | |
817 | } | |
818 | ||
819 | QComboBox* DecodeTrace::create_channel_selector(QWidget *parent, const DecodeChannel *ch) | |
820 | { | |
821 | const auto sigs(session_.signalbases()); | |
822 | ||
823 | // Sort signals in natural order | |
824 | vector< shared_ptr<data::SignalBase> > sig_list(sigs.begin(), sigs.end()); | |
825 | sort(sig_list.begin(), sig_list.end(), | |
826 | [](const shared_ptr<data::SignalBase> &a, | |
827 | const shared_ptr<data::SignalBase> &b) { | |
828 | return strnatcasecmp(a->name().toStdString(), | |
829 | b->name().toStdString()) < 0; }); | |
830 | ||
831 | QComboBox *selector = new QComboBox(parent); | |
832 | ||
833 | selector->addItem("-", qVariantFromValue((void*)nullptr)); | |
834 | ||
835 | if (!ch->assigned_signal) | |
836 | selector->setCurrentIndex(0); | |
837 | ||
838 | for (const shared_ptr<data::SignalBase> &b : sig_list) { | |
839 | assert(b); | |
840 | if (b->logic_data() && b->enabled()) { | |
841 | selector->addItem(b->name(), | |
842 | qVariantFromValue((void*)b.get())); | |
843 | ||
844 | if (ch->assigned_signal == b.get()) | |
845 | selector->setCurrentIndex(selector->count() - 1); | |
846 | } | |
847 | } | |
848 | ||
849 | return selector; | |
850 | } | |
851 | ||
852 | QComboBox* DecodeTrace::create_channel_selector_init_state(QWidget *parent, | |
853 | const DecodeChannel *ch) | |
854 | { | |
855 | QComboBox *selector = new QComboBox(parent); | |
856 | ||
857 | selector->addItem("0", qVariantFromValue((int)SRD_INITIAL_PIN_LOW)); | |
858 | selector->addItem("1", qVariantFromValue((int)SRD_INITIAL_PIN_HIGH)); | |
859 | selector->addItem("X", qVariantFromValue((int)SRD_INITIAL_PIN_SAME_AS_SAMPLE0)); | |
860 | ||
861 | selector->setCurrentIndex(ch->initial_pin_state); | |
862 | ||
863 | selector->setToolTip("Initial (assumed) pin value before the first sample"); | |
864 | ||
865 | return selector; | |
866 | } | |
867 | ||
868 | void DecodeTrace::on_new_annotations() | |
869 | { | |
870 | if (!delayed_trace_updater_.isActive()) | |
871 | delayed_trace_updater_.start(); | |
872 | } | |
873 | ||
874 | void DecodeTrace::on_delayed_trace_update() | |
875 | { | |
876 | if (owner_) | |
877 | owner_->row_item_appearance_changed(false, true); | |
878 | } | |
879 | ||
880 | void DecodeTrace::on_decode_reset() | |
881 | { | |
882 | visible_rows_.clear(); | |
883 | max_visible_rows_ = 0; | |
884 | ||
885 | if (owner_) | |
886 | owner_->row_item_appearance_changed(false, true); | |
887 | } | |
888 | ||
889 | void DecodeTrace::on_decode_finished() | |
890 | { | |
891 | if (owner_) | |
892 | owner_->row_item_appearance_changed(false, true); | |
893 | } | |
894 | ||
895 | void DecodeTrace::delete_pressed() | |
896 | { | |
897 | on_delete(); | |
898 | } | |
899 | ||
900 | void DecodeTrace::on_delete() | |
901 | { | |
902 | session_.remove_decode_signal(decode_signal_); | |
903 | } | |
904 | ||
905 | void DecodeTrace::on_channel_selected(int) | |
906 | { | |
907 | QComboBox *cb = qobject_cast<QComboBox*>(QObject::sender()); | |
908 | ||
909 | // Determine signal that was selected | |
910 | const data::SignalBase *signal = | |
911 | (data::SignalBase*)cb->itemData(cb->currentIndex()).value<void*>(); | |
912 | ||
913 | // Determine decode channel ID this combo box is the channel selector for | |
914 | const uint16_t id = channel_id_map_.at(cb); | |
915 | ||
916 | decode_signal_->assign_signal(id, signal); | |
917 | } | |
918 | ||
919 | void DecodeTrace::on_channels_updated() | |
920 | { | |
921 | if (owner_) | |
922 | owner_->row_item_appearance_changed(false, true); | |
923 | } | |
924 | ||
925 | void DecodeTrace::on_init_state_changed(int) | |
926 | { | |
927 | QComboBox *cb = qobject_cast<QComboBox*>(QObject::sender()); | |
928 | ||
929 | // Determine inital pin state that was selected | |
930 | int init_state = cb->itemData(cb->currentIndex()).value<int>(); | |
931 | ||
932 | // Determine decode channel ID this combo box is the channel selector for | |
933 | const uint16_t id = init_state_map_.at(cb); | |
934 | ||
935 | decode_signal_->set_initial_pin_state(id, init_state); | |
936 | } | |
937 | ||
938 | void DecodeTrace::on_stack_decoder(srd_decoder *decoder) | |
939 | { | |
940 | decode_signal_->stack_decoder(decoder); | |
941 | ||
942 | create_popup_form(); | |
943 | } | |
944 | ||
945 | void DecodeTrace::on_delete_decoder(int index) | |
946 | { | |
947 | decode_signal_->remove_decoder(index); | |
948 | ||
949 | // Force re-calculation of the trace height, see paint_mid() | |
950 | max_visible_rows_ = 0; | |
951 | owner_->extents_changed(false, true); | |
952 | ||
953 | // Update the popup | |
954 | create_popup_form(); | |
955 | } | |
956 | ||
957 | void DecodeTrace::on_show_hide_decoder(int index) | |
958 | { | |
959 | const bool state = decode_signal_->toggle_decoder_visibility(index); | |
960 | ||
961 | assert(index < (int)decoder_forms_.size()); | |
962 | decoder_forms_[index]->set_decoder_visible(state); | |
963 | ||
964 | if (!state) { | |
965 | // Force re-calculation of the trace height, see paint_mid() | |
966 | max_visible_rows_ = 0; | |
967 | owner_->extents_changed(false, true); | |
968 | } | |
969 | ||
970 | if (owner_) | |
971 | owner_->row_item_appearance_changed(false, true); | |
972 | } | |
973 | ||
974 | } // namespace trace | |
975 | } // namespace views | |
976 | } // namespace pv |