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Signal: Added scale_handle_offset, scale_handle_dragged and scale_handle_released
[pulseview.git] / pv / view / logicsignal.cpp
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, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
19  */
20
21 #include <extdef.h>
22
23 #include <cassert>
24 #include <cmath>
25
26 #include <algorithm>
27
28 #include <QFormLayout>
29 #include <QToolBar>
30
31 #include "logicsignal.hpp"
32 #include "view.hpp"
33
34 #include <pv/session.hpp>
35 #include <pv/devicemanager.hpp>
36 #include <pv/devices/device.hpp>
37 #include <pv/data/logic.hpp>
38 #include <pv/data/logicsegment.hpp>
39 #include <pv/view/view.hpp>
40
41 #include <libsigrokcxx/libsigrokcxx.hpp>
42
43 using std::deque;
44 using std::max;
45 using std::make_pair;
46 using std::min;
47 using std::pair;
48 using std::shared_ptr;
49 using std::vector;
50
51 using sigrok::Channel;
52 using sigrok::ConfigKey;
53 using sigrok::Error;
54 using sigrok::Trigger;
55 using sigrok::TriggerStage;
56 using sigrok::TriggerMatch;
57 using sigrok::TriggerMatchType;
58
59 namespace pv {
60 namespace view {
61
62 const int LogicSignal::SignalHeight = 30;
63 const int LogicSignal::SignalMargin = 10;
64
65 const float LogicSignal::Oversampling = 2.0f;
66
67 const QColor LogicSignal::EdgeColour(0x80, 0x80, 0x80);
68 const QColor LogicSignal::HighColour(0x00, 0xC0, 0x00);
69 const QColor LogicSignal::LowColour(0xC0, 0x00, 0x00);
70
71 const QColor LogicSignal::SignalColours[10] = {
72         QColor(0x16, 0x19, 0x1A),       // Black
73         QColor(0x8F, 0x52, 0x02),       // Brown
74         QColor(0xCC, 0x00, 0x00),       // Red
75         QColor(0xF5, 0x79, 0x00),       // Orange
76         QColor(0xED, 0xD4, 0x00),       // Yellow
77         QColor(0x73, 0xD2, 0x16),       // Green
78         QColor(0x34, 0x65, 0xA4),       // Blue
79         QColor(0x75, 0x50, 0x7B),       // Violet
80         QColor(0x88, 0x8A, 0x85),       // Grey
81         QColor(0xEE, 0xEE, 0xEC),       // White
82 };
83
84 QColor LogicSignal::TriggerMarkerBackgroundColour = QColor(0xED, 0xD4, 0x00);
85 const int LogicSignal::TriggerMarkerPadding = 2;
86 const char* LogicSignal::TriggerMarkerIcons[8] = {
87         nullptr,
88         ":/icons/trigger-marker-low.svg",
89         ":/icons/trigger-marker-high.svg",
90         ":/icons/trigger-marker-rising.svg",
91         ":/icons/trigger-marker-falling.svg",
92         ":/icons/trigger-marker-change.svg",
93         nullptr,
94         nullptr
95 };
96
97 QCache<QString, const QIcon> LogicSignal::icon_cache_;
98 QCache<QString, const QPixmap> LogicSignal::pixmap_cache_;
99
100 LogicSignal::LogicSignal(
101         pv::Session &session,
102         shared_ptr<devices::Device> device,
103         shared_ptr<Channel> channel,
104         shared_ptr<data::Logic> data) :
105         Signal(session, channel),
106         device_(device),
107         data_(data),
108         trigger_none_(nullptr),
109         trigger_rising_(nullptr),
110         trigger_high_(nullptr),
111         trigger_falling_(nullptr),
112         trigger_low_(nullptr),
113         trigger_change_(nullptr)
114 {
115         shared_ptr<Trigger> trigger;
116
117         colour_ = SignalColours[channel->index() % countof(SignalColours)];
118
119         /* Populate this channel's trigger setting with whatever we
120          * find in the current session trigger, if anything. */
121         trigger_match_ = nullptr;
122         if ((trigger = session_.session()->trigger()))
123                 for (auto stage : trigger->stages())
124                         for (auto match : stage->matches())
125                                 if (match->channel() == channel_)
126                                         trigger_match_ = match->type();
127 }
128
129 LogicSignal::~LogicSignal()
130 {
131 }
132
133 shared_ptr<pv::data::SignalData> LogicSignal::data() const
134 {
135         return data_;
136 }
137
138 shared_ptr<pv::data::Logic> LogicSignal::logic_data() const
139 {
140         return data_;
141 }
142
143 void LogicSignal::set_logic_data(std::shared_ptr<pv::data::Logic> data)
144 {
145         data_ = data;
146 }
147
148 std::pair<int, int> LogicSignal::v_extents() const
149 {
150         return make_pair(-SignalHeight - SignalMargin, SignalMargin);
151 }
152
153 int LogicSignal::scale_handle_offset() const
154 {
155         return SignalHeight;
156 }
157
158 void LogicSignal::scale_handle_dragged(int offset)
159 {
160         (void)offset;
161 }
162
163 void LogicSignal::paint_back(QPainter &p, const ViewItemPaintParams &pp)
164 {
165         if (channel_->enabled())
166                 paint_axis(p, pp, get_visual_y());
167 }
168
169 void LogicSignal::paint_mid(QPainter &p, const ViewItemPaintParams &pp)
170 {
171         QLineF *line;
172
173         vector< pair<int64_t, bool> > edges;
174
175         assert(channel_);
176         assert(data_);
177         assert(owner_);
178
179         const int y = get_visual_y();
180
181         if (!channel_->enabled())
182                 return;
183
184         const float high_offset = y - SignalHeight + 0.5f;
185         const float low_offset = y + 0.5f;
186
187         const deque< shared_ptr<pv::data::LogicSegment> > &segments =
188                 data_->logic_segments();
189         if (segments.empty())
190                 return;
191
192         const shared_ptr<pv::data::LogicSegment> &segment =
193                 segments.front();
194
195         double samplerate = segment->samplerate();
196
197         // Show sample rate as 1Hz when it is unknown
198         if (samplerate == 0.0)
199                 samplerate = 1.0;
200
201         const double pixels_offset = pp.pixels_offset();
202         const pv::util::Timestamp& start_time = segment->start_time();
203         const int64_t last_sample = segment->get_sample_count() - 1;
204         const double samples_per_pixel = samplerate * pp.scale();
205         const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
206         const pv::util::Timestamp end = start + samples_per_pixel * pp.width();
207
208         const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
209                 (int64_t)0), last_sample);
210         const uint64_t end_sample = min(max(ceil(end).convert_to<int64_t>(),
211                 (int64_t)0), last_sample);
212
213         segment->get_subsampled_edges(edges, start_sample, end_sample,
214                 samples_per_pixel / Oversampling, channel_->index());
215         assert(edges.size() >= 2);
216
217         // Paint the edges
218         const unsigned int edge_count = edges.size() - 2;
219         QLineF *const edge_lines = new QLineF[edge_count];
220         line = edge_lines;
221
222         for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) {
223                 const float x = ((*i).first / samples_per_pixel -
224                         pixels_offset) + pp.left();
225                 *line++ = QLineF(x, high_offset, x, low_offset);
226         }
227
228         p.setPen(EdgeColour);
229         p.drawLines(edge_lines, edge_count);
230         delete[] edge_lines;
231
232         // Paint the caps
233         const unsigned int max_cap_line_count = edges.size();
234         QLineF *const cap_lines = new QLineF[max_cap_line_count];
235
236         p.setPen(HighColour);
237         paint_caps(p, cap_lines, edges, true, samples_per_pixel,
238                 pixels_offset, pp.left(), high_offset);
239         p.setPen(LowColour);
240         paint_caps(p, cap_lines, edges, false, samples_per_pixel,
241                 pixels_offset, pp.left(), low_offset);
242
243         delete[] cap_lines;
244 }
245
246 void LogicSignal::paint_fore(QPainter &p, const ViewItemPaintParams &pp)
247 {
248         // Draw the trigger marker
249         if (!trigger_match_)
250                 return;
251
252         const int y = get_visual_y();
253         const vector<int32_t> trig_types = get_trigger_types();
254         for (int32_t type_id : trig_types) {
255                 const TriggerMatchType *const type =
256                         TriggerMatchType::get(type_id);
257                 if (trigger_match_ != type || type_id < 0 ||
258                         (size_t)type_id >= countof(TriggerMarkerIcons) ||
259                         !TriggerMarkerIcons[type_id])
260                         continue;
261
262                 const QPixmap *const pixmap = get_pixmap(
263                         TriggerMarkerIcons[type_id]);
264                 if (!pixmap)
265                         continue;
266
267                 const float pad = TriggerMarkerPadding - 0.5f;
268                 const QSize size = pixmap->size();
269                 const QPoint point(
270                         pp.right() - size.width() - pad * 2,
271                         y - (SignalHeight + size.height()) / 2);
272
273                 p.setPen(QPen(TriggerMarkerBackgroundColour.darker()));
274                 p.setBrush(TriggerMarkerBackgroundColour);
275                 p.drawRoundedRect(QRectF(point, size).adjusted(
276                         -pad, -pad, pad, pad), pad, pad);
277                 p.drawPixmap(point, *pixmap);
278
279                 break;
280         }
281 }
282
283 void LogicSignal::paint_caps(QPainter &p, QLineF *const lines,
284         vector< pair<int64_t, bool> > &edges, bool level,
285         double samples_per_pixel, double pixels_offset, float x_offset,
286         float y_offset)
287 {
288         QLineF *line = lines;
289
290         for (auto i = edges.begin(); i != (edges.end() - 1); i++)
291                 if ((*i).second == level) {
292                         *line++ = QLineF(
293                                 ((*i).first / samples_per_pixel -
294                                         pixels_offset) + x_offset, y_offset,
295                                 ((*(i+1)).first / samples_per_pixel -
296                                         pixels_offset) + x_offset, y_offset);
297                 }
298
299         p.drawLines(lines, line - lines);
300 }
301
302 void LogicSignal::init_trigger_actions(QWidget *parent)
303 {
304         trigger_none_ = new QAction(*get_icon(":/icons/trigger-none.svg"),
305                 tr("No trigger"), parent);
306         trigger_none_->setCheckable(true);
307         connect(trigger_none_, SIGNAL(triggered()), this, SLOT(on_trigger()));
308
309         trigger_rising_ = new QAction(*get_icon(":/icons/trigger-rising.svg"),
310                 tr("Trigger on rising edge"), parent);
311         trigger_rising_->setCheckable(true);
312         connect(trigger_rising_, SIGNAL(triggered()), this, SLOT(on_trigger()));
313
314         trigger_high_ = new QAction(*get_icon(":/icons/trigger-high.svg"),
315                 tr("Trigger on high level"), parent);
316         trigger_high_->setCheckable(true);
317         connect(trigger_high_, SIGNAL(triggered()), this, SLOT(on_trigger()));
318
319         trigger_falling_ = new QAction(*get_icon(":/icons/trigger-falling.svg"),
320                 tr("Trigger on falling edge"), parent);
321         trigger_falling_->setCheckable(true);
322         connect(trigger_falling_, SIGNAL(triggered()), this, SLOT(on_trigger()));
323
324         trigger_low_ = new QAction(*get_icon(":/icons/trigger-low.svg"),
325                 tr("Trigger on low level"), parent);
326         trigger_low_->setCheckable(true);
327         connect(trigger_low_, SIGNAL(triggered()), this, SLOT(on_trigger()));
328
329         trigger_change_ = new QAction(*get_icon(":/icons/trigger-change.svg"),
330                 tr("Trigger on rising or falling edge"), parent);
331         trigger_change_->setCheckable(true);
332         connect(trigger_change_, SIGNAL(triggered()), this, SLOT(on_trigger()));
333 }
334
335 const vector<int32_t> LogicSignal::get_trigger_types() const
336 {
337         const auto sr_dev = device_->device();
338         const auto keys = sr_dev->config_keys(ConfigKey::DEVICE_OPTIONS);
339         const auto iter = keys.find(ConfigKey::TRIGGER_MATCH);
340         if (iter != keys.end() &&
341                 (*iter).second.find(sigrok::LIST) != (*iter).second.end()) {
342                 try {
343                         const Glib::VariantContainerBase gvar =
344                                 sr_dev->config_list(ConfigKey::TRIGGER_MATCH);
345                         return Glib::VariantBase::cast_dynamic<
346                                 Glib::Variant<vector<int32_t>>>(gvar).get();
347                 } catch (Error e) {
348                         // Failed to enumerate triggers
349                         (void)e;
350                 }
351         }
352
353         return vector<int32_t>();
354 }
355
356 QAction* LogicSignal::action_from_trigger_type(const TriggerMatchType *type)
357 {
358         QAction *action;
359
360         action = trigger_none_;
361         if (type) {
362                 switch (type->id()) {
363                 case SR_TRIGGER_ZERO:
364                         action = trigger_low_;
365                         break;
366                 case SR_TRIGGER_ONE:
367                         action = trigger_high_;
368                         break;
369                 case SR_TRIGGER_RISING:
370                         action = trigger_rising_;
371                         break;
372                 case SR_TRIGGER_FALLING:
373                         action = trigger_falling_;
374                         break;
375                 case SR_TRIGGER_EDGE:
376                         action = trigger_change_;
377                         break;
378                 default:
379                         assert(0);
380                 }
381         }
382
383         return action;
384 }
385
386 const TriggerMatchType *LogicSignal::trigger_type_from_action(QAction *action)
387 {
388         if (action == trigger_low_)
389                 return TriggerMatchType::ZERO;
390         else if (action == trigger_high_)
391                 return TriggerMatchType::ONE;
392         else if (action == trigger_rising_)
393                 return TriggerMatchType::RISING;
394         else if (action == trigger_falling_)
395                 return TriggerMatchType::FALLING;
396         else if (action == trigger_change_)
397                 return TriggerMatchType::EDGE;
398         else
399                 return nullptr;
400 }
401
402 void LogicSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
403 {
404         Signal::populate_popup_form(parent, form);
405
406         const vector<int32_t> trig_types = get_trigger_types();
407
408         if (!trig_types.empty()) {
409                 trigger_bar_ = new QToolBar(parent);
410                 init_trigger_actions(trigger_bar_);
411                 trigger_bar_->addAction(trigger_none_);
412                 trigger_none_->setChecked(!trigger_match_);
413
414                 for (auto type_id : trig_types) {
415                         const TriggerMatchType *const type =
416                                 TriggerMatchType::get(type_id);
417                         QAction *const action = action_from_trigger_type(type);
418                         trigger_bar_->addAction(action);
419                         action->setChecked(trigger_match_ == type);
420                 }
421                 form->addRow(tr("Trigger"), trigger_bar_);
422         }
423 }
424
425 void LogicSignal::modify_trigger()
426 {
427         auto trigger = session_.session()->trigger();
428         auto new_trigger = session_.device_manager().context()->create_trigger("pulseview");
429
430         if (trigger) {
431                 for (auto stage : trigger->stages()) {
432                         const auto &matches = stage->matches();
433                         if (std::none_of(matches.begin(), matches.end(),
434                             [&](shared_ptr<TriggerMatch> match) {
435                                         return match->channel() != channel_; }))
436                                 continue;
437
438                         auto new_stage = new_trigger->add_stage();
439                         for (auto match : stage->matches()) {
440                                 if (match->channel() == channel_)
441                                         continue;
442                                 new_stage->add_match(match->channel(), match->type());
443                         }
444                 }
445         }
446
447         if (trigger_match_)
448                 new_trigger->add_stage()->add_match(channel_, trigger_match_);
449
450         session_.session()->set_trigger(
451                 new_trigger->stages().empty() ? nullptr : new_trigger);
452
453         if (owner_)
454                 owner_->row_item_appearance_changed(false, true);
455 }
456
457 const QIcon* LogicSignal::get_icon(const char *path)
458 {
459         const QIcon *icon = icon_cache_.take(path);
460         if (!icon) {
461                 icon = new QIcon(path);
462                 icon_cache_.insert(path, icon);
463         }
464
465         return icon;
466 }
467
468 const QPixmap* LogicSignal::get_pixmap(const char *path)
469 {
470         const QPixmap *pixmap = pixmap_cache_.take(path);
471         if (!pixmap) {
472                 pixmap = new QPixmap(path);
473                 pixmap_cache_.insert(path, pixmap);
474         }
475
476         return pixmap;
477 }
478
479 void LogicSignal::on_trigger()
480 {
481         QAction *action;
482
483         action_from_trigger_type(trigger_match_)->setChecked(false);
484
485         action = (QAction *)sender();
486         action->setChecked(true);
487         trigger_match_ = trigger_type_from_action(action);
488
489         modify_trigger();
490 }
491
492 } // namespace view
493 } // namespace pv