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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, 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 <assert.h> | |
24 | ||
25 | #include <QAction> | |
26 | #include <QDebug> | |
27 | #include <QHelpEvent> | |
28 | #include <QToolTip> | |
29 | ||
30 | #include "samplingbar.hpp" | |
31 | ||
32 | #include <pv/devicemanager.hpp> | |
33 | #include <pv/popups/deviceoptions.hpp> | |
34 | #include <pv/popups/channels.hpp> | |
35 | #include <pv/util.hpp> | |
36 | ||
37 | #include <libsigrok/libsigrok.hpp> | |
38 | ||
39 | using std::map; | |
40 | using std::vector; | |
41 | using std::max; | |
42 | using std::min; | |
43 | using std::shared_ptr; | |
44 | using std::string; | |
45 | ||
46 | using sigrok::Capability; | |
47 | using sigrok::ConfigKey; | |
48 | using sigrok::Device; | |
49 | using sigrok::Error; | |
50 | ||
51 | namespace pv { | |
52 | namespace toolbars { | |
53 | ||
54 | const uint64_t SamplingBar::MinSampleCount = 100ULL; | |
55 | const uint64_t SamplingBar::MaxSampleCount = 1000000000000ULL; | |
56 | const uint64_t SamplingBar::DefaultSampleCount = 1000000; | |
57 | ||
58 | SamplingBar::SamplingBar(SigSession &session, QWidget *parent) : | |
59 | QToolBar("Sampling Bar", parent), | |
60 | session_(session), | |
61 | device_selector_(this), | |
62 | updating_device_selector_(false), | |
63 | configure_button_(this), | |
64 | configure_button_action_(NULL), | |
65 | channels_button_(this), | |
66 | sample_count_(" samples", this), | |
67 | sample_rate_("Hz", this), | |
68 | updating_sample_rate_(false), | |
69 | updating_sample_count_(false), | |
70 | sample_count_supported_(false), | |
71 | icon_red_(":/icons/status-red.svg"), | |
72 | icon_green_(":/icons/status-green.svg"), | |
73 | icon_grey_(":/icons/status-grey.svg"), | |
74 | run_stop_button_(this) | |
75 | { | |
76 | setObjectName(QString::fromUtf8("SamplingBar")); | |
77 | ||
78 | connect(&run_stop_button_, SIGNAL(clicked()), | |
79 | this, SLOT(on_run_stop())); | |
80 | connect(&device_selector_, SIGNAL(currentIndexChanged (int)), | |
81 | this, SLOT(on_device_selected())); | |
82 | connect(&sample_count_, SIGNAL(value_changed()), | |
83 | this, SLOT(on_sample_count_changed())); | |
84 | connect(&sample_rate_, SIGNAL(value_changed()), | |
85 | this, SLOT(on_sample_rate_changed())); | |
86 | ||
87 | sample_count_.show_min_max_step(0, UINT64_MAX, 1); | |
88 | ||
89 | set_capture_state(pv::SigSession::Stopped); | |
90 | ||
91 | configure_button_.setIcon(QIcon::fromTheme("configure", | |
92 | QIcon(":/icons/configure.png"))); | |
93 | ||
94 | channels_button_.setIcon(QIcon::fromTheme("channels", | |
95 | QIcon(":/icons/channels.svg"))); | |
96 | ||
97 | run_stop_button_.setToolButtonStyle(Qt::ToolButtonTextBesideIcon); | |
98 | ||
99 | addWidget(&device_selector_); | |
100 | configure_button_action_ = addWidget(&configure_button_); | |
101 | addWidget(&channels_button_); | |
102 | addWidget(&sample_count_); | |
103 | addWidget(&sample_rate_); | |
104 | ||
105 | addWidget(&run_stop_button_); | |
106 | ||
107 | sample_count_.installEventFilter(this); | |
108 | sample_rate_.installEventFilter(this); | |
109 | } | |
110 | ||
111 | void SamplingBar::set_device_list( | |
112 | const std::list< std::pair<std::shared_ptr<sigrok::Device>, std::string> > &devices, | |
113 | shared_ptr<Device> selected) | |
114 | { | |
115 | int selected_index = -1; | |
116 | ||
117 | assert(selected); | |
118 | ||
119 | updating_device_selector_ = true; | |
120 | ||
121 | device_selector_.clear(); | |
122 | ||
123 | for (auto entry : devices) { | |
124 | auto device = entry.first; | |
125 | auto display_name = entry.second; | |
126 | ||
127 | assert(device); | |
128 | ||
129 | if (selected == device) | |
130 | selected_index = device_selector_.count(); | |
131 | ||
132 | device_selector_.addItem(display_name.c_str(), | |
133 | qVariantFromValue(device)); | |
134 | } | |
135 | ||
136 | // The selected device should have been in the list | |
137 | assert(selected_index != -1); | |
138 | device_selector_.setCurrentIndex(selected_index); | |
139 | ||
140 | update_device_config_widgets(); | |
141 | ||
142 | updating_device_selector_ = false; | |
143 | } | |
144 | ||
145 | shared_ptr<Device> SamplingBar::get_selected_device() const | |
146 | { | |
147 | const int index = device_selector_.currentIndex(); | |
148 | if (index < 0) | |
149 | return shared_ptr<Device>(); | |
150 | ||
151 | return device_selector_.itemData(index).value<shared_ptr<Device>>(); | |
152 | } | |
153 | ||
154 | void SamplingBar::set_capture_state(pv::SigSession::capture_state state) | |
155 | { | |
156 | const QIcon *icons[] = {&icon_grey_, &icon_red_, &icon_green_}; | |
157 | run_stop_button_.setIcon(*icons[state]); | |
158 | run_stop_button_.setText((state == pv::SigSession::Stopped) ? | |
159 | tr("Run") : tr("Stop")); | |
160 | run_stop_button_.setShortcut(QKeySequence(Qt::Key_Space)); | |
161 | } | |
162 | ||
163 | void SamplingBar::update_sample_rate_selector() | |
164 | { | |
165 | Glib::VariantContainerBase gvar_dict; | |
166 | GVariant *gvar_list; | |
167 | const uint64_t *elements = NULL; | |
168 | gsize num_elements; | |
169 | ||
170 | if (updating_sample_rate_) | |
171 | return; | |
172 | ||
173 | const shared_ptr<Device> device = get_selected_device(); | |
174 | if (!device) | |
175 | return; | |
176 | ||
177 | assert(!updating_sample_rate_); | |
178 | updating_sample_rate_ = true; | |
179 | ||
180 | const auto keys = device->config_keys(ConfigKey::DEVICE_OPTIONS); | |
181 | const auto iter = keys.find(ConfigKey::SAMPLERATE); | |
182 | if (iter != keys.end() && | |
183 | (*iter).second.find(sigrok::LIST) != (*iter).second.end()) { | |
184 | gvar_dict = device->config_list(ConfigKey::SAMPLERATE); | |
185 | } else { | |
186 | sample_rate_.show_none(); | |
187 | updating_sample_rate_ = false; | |
188 | return; | |
189 | } | |
190 | ||
191 | if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(), | |
192 | "samplerate-steps", G_VARIANT_TYPE("at")))) | |
193 | { | |
194 | elements = (const uint64_t *)g_variant_get_fixed_array( | |
195 | gvar_list, &num_elements, sizeof(uint64_t)); | |
196 | ||
197 | const uint64_t min = elements[0]; | |
198 | const uint64_t max = elements[1]; | |
199 | const uint64_t step = elements[2]; | |
200 | ||
201 | g_variant_unref(gvar_list); | |
202 | ||
203 | assert(min > 0); | |
204 | assert(max > 0); | |
205 | assert(max > min); | |
206 | assert(step > 0); | |
207 | ||
208 | if (step == 1) | |
209 | sample_rate_.show_125_list(min, max); | |
210 | else | |
211 | { | |
212 | // When the step is not 1, we cam't make a 1-2-5-10 | |
213 | // list of sample rates, because we may not be able to | |
214 | // make round numbers. Therefore in this case, show a | |
215 | // spin box. | |
216 | sample_rate_.show_min_max_step(min, max, step); | |
217 | } | |
218 | } | |
219 | else if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(), | |
220 | "samplerates", G_VARIANT_TYPE("at")))) | |
221 | { | |
222 | elements = (const uint64_t *)g_variant_get_fixed_array( | |
223 | gvar_list, &num_elements, sizeof(uint64_t)); | |
224 | sample_rate_.show_list(elements, num_elements); | |
225 | g_variant_unref(gvar_list); | |
226 | } | |
227 | updating_sample_rate_ = false; | |
228 | ||
229 | update_sample_rate_selector_value(); | |
230 | } | |
231 | ||
232 | void SamplingBar::update_sample_rate_selector_value() | |
233 | { | |
234 | if (updating_sample_rate_) | |
235 | return; | |
236 | ||
237 | const shared_ptr<Device> device = get_selected_device(); | |
238 | if (!device) | |
239 | return; | |
240 | ||
241 | try { | |
242 | auto gvar = device->config_get(ConfigKey::SAMPLERATE); | |
243 | uint64_t samplerate = | |
244 | Glib::VariantBase::cast_dynamic<Glib::Variant<guint64>>(gvar).get(); | |
245 | assert(!updating_sample_rate_); | |
246 | updating_sample_rate_ = true; | |
247 | sample_rate_.set_value(samplerate); | |
248 | updating_sample_rate_ = false; | |
249 | } catch (Error error) { | |
250 | qDebug() << "WARNING: Failed to get value of sample rate"; | |
251 | return; | |
252 | } | |
253 | } | |
254 | ||
255 | void SamplingBar::update_sample_count_selector() | |
256 | { | |
257 | if (updating_sample_count_) | |
258 | return; | |
259 | ||
260 | const shared_ptr<Device> device = get_selected_device(); | |
261 | if (!device) | |
262 | return; | |
263 | ||
264 | assert(!updating_sample_count_); | |
265 | updating_sample_count_ = true; | |
266 | ||
267 | if (!sample_count_supported_) | |
268 | { | |
269 | sample_count_.show_none(); | |
270 | updating_sample_count_ = false; | |
271 | return; | |
272 | } | |
273 | ||
274 | uint64_t sample_count = sample_count_.value(); | |
275 | uint64_t min_sample_count = 0; | |
276 | uint64_t max_sample_count = MaxSampleCount; | |
277 | ||
278 | if (sample_count == 0) | |
279 | sample_count = DefaultSampleCount; | |
280 | ||
281 | const auto keys = device->config_keys(ConfigKey::DEVICE_OPTIONS); | |
282 | const auto iter = keys.find(ConfigKey::LIMIT_SAMPLES); | |
283 | if (iter != keys.end() && | |
284 | (*iter).second.find(sigrok::LIST) != (*iter).second.end()) { | |
285 | auto gvar = device->config_list(ConfigKey::LIMIT_SAMPLES); | |
286 | g_variant_get(gvar.gobj(), "(tt)", | |
287 | &min_sample_count, &max_sample_count); | |
288 | } | |
289 | ||
290 | min_sample_count = min(max(min_sample_count, MinSampleCount), | |
291 | max_sample_count); | |
292 | ||
293 | sample_count_.show_125_list( | |
294 | min_sample_count, max_sample_count); | |
295 | ||
296 | try { | |
297 | auto gvar = device->config_get(ConfigKey::LIMIT_SAMPLES); | |
298 | sample_count = g_variant_get_uint64(gvar.gobj()); | |
299 | if (sample_count == 0) | |
300 | sample_count = DefaultSampleCount; | |
301 | sample_count = min(max(sample_count, MinSampleCount), | |
302 | max_sample_count); | |
303 | } catch (Error error) {} | |
304 | ||
305 | sample_count_.set_value(sample_count); | |
306 | ||
307 | updating_sample_count_ = false; | |
308 | } | |
309 | ||
310 | void SamplingBar::update_device_config_widgets() | |
311 | { | |
312 | using namespace pv::popups; | |
313 | ||
314 | const shared_ptr<Device> device = get_selected_device(); | |
315 | if (!device) | |
316 | return; | |
317 | ||
318 | // Update the configure popup | |
319 | DeviceOptions *const opts = new DeviceOptions(device, this); | |
320 | configure_button_action_->setVisible( | |
321 | !opts->binding().properties().empty()); | |
322 | configure_button_.set_popup(opts); | |
323 | ||
324 | // Update the channels popup | |
325 | Channels *const channels = new Channels(session_, this); | |
326 | channels_button_.set_popup(channels); | |
327 | ||
328 | // Update supported options. | |
329 | sample_count_supported_ = false; | |
330 | ||
331 | try { | |
332 | for (auto entry : device->config_keys(ConfigKey::DEVICE_OPTIONS)) | |
333 | { | |
334 | auto key = entry.first; | |
335 | auto capabilities = entry.second; | |
336 | switch (key->id()) { | |
337 | case SR_CONF_LIMIT_SAMPLES: | |
338 | if (capabilities.count(Capability::SET)) | |
339 | sample_count_supported_ = true; | |
340 | break; | |
341 | case SR_CONF_LIMIT_FRAMES: | |
342 | if (capabilities.count(Capability::SET)) | |
343 | { | |
344 | device->config_set(ConfigKey::LIMIT_FRAMES, | |
345 | Glib::Variant<guint64>::create(1)); | |
346 | on_config_changed(); | |
347 | } | |
348 | break; | |
349 | default: | |
350 | break; | |
351 | } | |
352 | } | |
353 | } catch (Error error) {} | |
354 | ||
355 | // Add notification of reconfigure events | |
356 | disconnect(this, SLOT(on_config_changed())); | |
357 | connect(&opts->binding(), SIGNAL(config_changed()), | |
358 | this, SLOT(on_config_changed())); | |
359 | ||
360 | // Update sweep timing widgets. | |
361 | update_sample_count_selector(); | |
362 | update_sample_rate_selector(); | |
363 | } | |
364 | ||
365 | void SamplingBar::commit_sample_count() | |
366 | { | |
367 | uint64_t sample_count = 0; | |
368 | ||
369 | if (updating_sample_count_) | |
370 | return; | |
371 | ||
372 | const shared_ptr<Device> device = get_selected_device(); | |
373 | if (!device) | |
374 | return; | |
375 | ||
376 | sample_count = sample_count_.value(); | |
377 | ||
378 | // Set the sample count | |
379 | assert(!updating_sample_count_); | |
380 | updating_sample_count_ = true; | |
381 | if (sample_count_supported_) | |
382 | { | |
383 | try { | |
384 | device->config_set(ConfigKey::LIMIT_SAMPLES, | |
385 | Glib::Variant<guint64>::create(sample_count)); | |
386 | on_config_changed(); | |
387 | } catch (Error error) { | |
388 | qDebug() << "Failed to configure sample count."; | |
389 | return; | |
390 | } | |
391 | } | |
392 | updating_sample_count_ = false; | |
393 | } | |
394 | ||
395 | void SamplingBar::commit_sample_rate() | |
396 | { | |
397 | uint64_t sample_rate = 0; | |
398 | ||
399 | if (updating_sample_rate_) | |
400 | return; | |
401 | ||
402 | const shared_ptr<Device> device = get_selected_device(); | |
403 | if (!device) | |
404 | return; | |
405 | ||
406 | sample_rate = sample_rate_.value(); | |
407 | if (sample_rate == 0) | |
408 | return; | |
409 | ||
410 | // Set the samplerate | |
411 | assert(!updating_sample_rate_); | |
412 | updating_sample_rate_ = true; | |
413 | try { | |
414 | device->config_set(ConfigKey::SAMPLERATE, | |
415 | Glib::Variant<guint64>::create(sample_rate)); | |
416 | on_config_changed(); | |
417 | } catch (Error error) { | |
418 | qDebug() << "Failed to configure samplerate."; | |
419 | return; | |
420 | } | |
421 | updating_sample_rate_ = false; | |
422 | } | |
423 | ||
424 | void SamplingBar::on_device_selected() | |
425 | { | |
426 | if (updating_device_selector_) | |
427 | return; | |
428 | ||
429 | shared_ptr<Device> device = get_selected_device(); | |
430 | if (!device) | |
431 | return; | |
432 | ||
433 | session_.set_device(device); | |
434 | ||
435 | update_device_config_widgets(); | |
436 | } | |
437 | ||
438 | void SamplingBar::on_sample_count_changed() | |
439 | { | |
440 | commit_sample_count(); | |
441 | } | |
442 | ||
443 | void SamplingBar::on_sample_rate_changed() | |
444 | { | |
445 | commit_sample_rate(); | |
446 | } | |
447 | ||
448 | void SamplingBar::on_run_stop() | |
449 | { | |
450 | commit_sample_count(); | |
451 | commit_sample_rate(); | |
452 | run_stop(); | |
453 | } | |
454 | ||
455 | void SamplingBar::on_config_changed() | |
456 | { | |
457 | commit_sample_count(); | |
458 | update_sample_count_selector(); | |
459 | commit_sample_rate(); | |
460 | update_sample_rate_selector(); | |
461 | } | |
462 | ||
463 | bool SamplingBar::eventFilter(QObject *watched, QEvent *event) | |
464 | { | |
465 | if ((watched == &sample_count_ || watched == &sample_rate_) && | |
466 | (event->type() == QEvent::ToolTip)) { | |
467 | double sec = (double)sample_count_.value() / sample_rate_.value(); | |
468 | QHelpEvent *help_event = static_cast<QHelpEvent*>(event); | |
469 | ||
470 | QString str = tr("Total sampling time: %1").arg(pv::util::format_second(sec)); | |
471 | QToolTip::showText(help_event->globalPos(), str); | |
472 | ||
473 | return true; | |
474 | } | |
475 | ||
476 | return false; | |
477 | } | |
478 | ||
479 | } // namespace toolbars | |
480 | } // namespace pv |