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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.h" | |
31 | ||
32 | #include <pv/devicemanager.h> | |
33 | #include <pv/popups/deviceoptions.h> | |
34 | #include <pv/popups/channels.h> | |
35 | #include <pv/util.h> | |
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 | } | |
161 | ||
162 | void SamplingBar::update_sample_rate_selector() | |
163 | { | |
164 | Glib::VariantContainerBase gvar_dict; | |
165 | GVariant *gvar_list; | |
166 | const uint64_t *elements = NULL; | |
167 | gsize num_elements; | |
168 | ||
169 | if (_updating_sample_rate) | |
170 | return; | |
171 | ||
172 | const shared_ptr<Device> device = get_selected_device(); | |
173 | if (!device) | |
174 | return; | |
175 | ||
176 | assert(!_updating_sample_rate); | |
177 | _updating_sample_rate = true; | |
178 | ||
179 | try { | |
180 | gvar_dict = device->config_list(ConfigKey::SAMPLERATE); | |
181 | } catch (Error error) { | |
182 | _sample_rate.show_none(); | |
183 | _updating_sample_rate = false; | |
184 | return; | |
185 | } | |
186 | ||
187 | if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(), | |
188 | "samplerate-steps", G_VARIANT_TYPE("at")))) | |
189 | { | |
190 | elements = (const uint64_t *)g_variant_get_fixed_array( | |
191 | gvar_list, &num_elements, sizeof(uint64_t)); | |
192 | ||
193 | const uint64_t min = elements[0]; | |
194 | const uint64_t max = elements[1]; | |
195 | const uint64_t step = elements[2]; | |
196 | ||
197 | g_variant_unref(gvar_list); | |
198 | ||
199 | assert(min > 0); | |
200 | assert(max > 0); | |
201 | assert(max > min); | |
202 | assert(step > 0); | |
203 | ||
204 | if (step == 1) | |
205 | _sample_rate.show_125_list(min, max); | |
206 | else | |
207 | { | |
208 | // When the step is not 1, we cam't make a 1-2-5-10 | |
209 | // list of sample rates, because we may not be able to | |
210 | // make round numbers. Therefore in this case, show a | |
211 | // spin box. | |
212 | _sample_rate.show_min_max_step(min, max, step); | |
213 | } | |
214 | } | |
215 | else if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(), | |
216 | "samplerates", G_VARIANT_TYPE("at")))) | |
217 | { | |
218 | elements = (const uint64_t *)g_variant_get_fixed_array( | |
219 | gvar_list, &num_elements, sizeof(uint64_t)); | |
220 | _sample_rate.show_list(elements, num_elements); | |
221 | g_variant_unref(gvar_list); | |
222 | } | |
223 | _updating_sample_rate = false; | |
224 | ||
225 | update_sample_rate_selector_value(); | |
226 | } | |
227 | ||
228 | void SamplingBar::update_sample_rate_selector_value() | |
229 | { | |
230 | if (_updating_sample_rate) | |
231 | return; | |
232 | ||
233 | const shared_ptr<Device> device = get_selected_device(); | |
234 | if (!device) | |
235 | return; | |
236 | ||
237 | try { | |
238 | auto gvar = device->config_get(ConfigKey::SAMPLERATE); | |
239 | uint64_t samplerate = | |
240 | Glib::VariantBase::cast_dynamic<Glib::Variant<guint64>>(gvar).get(); | |
241 | assert(!_updating_sample_rate); | |
242 | _updating_sample_rate = true; | |
243 | _sample_rate.set_value(samplerate); | |
244 | _updating_sample_rate = false; | |
245 | } catch (Error error) { | |
246 | qDebug() << "WARNING: Failed to get value of sample rate"; | |
247 | return; | |
248 | } | |
249 | } | |
250 | ||
251 | void SamplingBar::update_sample_count_selector() | |
252 | { | |
253 | if (_updating_sample_count) | |
254 | return; | |
255 | ||
256 | const shared_ptr<Device> device = get_selected_device(); | |
257 | if (!device) | |
258 | return; | |
259 | ||
260 | assert(!_updating_sample_count); | |
261 | _updating_sample_count = true; | |
262 | ||
263 | if (_sample_count_supported) | |
264 | { | |
265 | uint64_t sample_count = _sample_count.value(); | |
266 | uint64_t min_sample_count = 0; | |
267 | uint64_t max_sample_count = MaxSampleCount; | |
268 | ||
269 | if (sample_count == 0) | |
270 | sample_count = DefaultSampleCount; | |
271 | ||
272 | try { | |
273 | auto gvar = device->config_list(ConfigKey::LIMIT_SAMPLES); | |
274 | g_variant_get(gvar.gobj(), "(tt)", | |
275 | &min_sample_count, &max_sample_count); | |
276 | } catch (Error error) {} | |
277 | ||
278 | min_sample_count = min(max(min_sample_count, MinSampleCount), | |
279 | max_sample_count); | |
280 | ||
281 | _sample_count.show_125_list( | |
282 | min_sample_count, max_sample_count); | |
283 | ||
284 | try { | |
285 | auto gvar = device->config_get(ConfigKey::LIMIT_SAMPLES); | |
286 | sample_count = g_variant_get_uint64(gvar.gobj()); | |
287 | if (sample_count == 0) | |
288 | sample_count = DefaultSampleCount; | |
289 | sample_count = min(max(sample_count, MinSampleCount), | |
290 | max_sample_count); | |
291 | } catch (Error error) {} | |
292 | ||
293 | _sample_count.set_value(sample_count); | |
294 | } | |
295 | else | |
296 | _sample_count.show_none(); | |
297 | ||
298 | _updating_sample_count = false; | |
299 | } | |
300 | ||
301 | void SamplingBar::update_device_config_widgets() | |
302 | { | |
303 | using namespace pv::popups; | |
304 | ||
305 | const shared_ptr<Device> device = get_selected_device(); | |
306 | if (!device) | |
307 | return; | |
308 | ||
309 | // Update the configure popup | |
310 | DeviceOptions *const opts = new DeviceOptions(device, this); | |
311 | _configure_button_action->setVisible( | |
312 | !opts->binding().properties().empty()); | |
313 | _configure_button.set_popup(opts); | |
314 | ||
315 | // Update the channels popup | |
316 | Channels *const channels = new Channels(_session, this); | |
317 | _channels_button.set_popup(channels); | |
318 | ||
319 | // Update supported options. | |
320 | _sample_count_supported = false; | |
321 | ||
322 | try { | |
323 | for (auto entry : device->config_keys(ConfigKey::DEVICE_OPTIONS)) | |
324 | { | |
325 | auto key = entry.first; | |
326 | auto capabilities = entry.second; | |
327 | switch (key->id()) { | |
328 | case SR_CONF_LIMIT_SAMPLES: | |
329 | if (capabilities.count(Capability::SET)) | |
330 | _sample_count_supported = true; | |
331 | break; | |
332 | case SR_CONF_LIMIT_FRAMES: | |
333 | if (capabilities.count(Capability::SET)) | |
334 | { | |
335 | device->config_set(ConfigKey::LIMIT_FRAMES, | |
336 | Glib::Variant<guint64>::create(1)); | |
337 | on_config_changed(); | |
338 | } | |
339 | break; | |
340 | default: | |
341 | break; | |
342 | } | |
343 | } | |
344 | } catch (Error error) {} | |
345 | ||
346 | // Add notification of reconfigure events | |
347 | disconnect(this, SLOT(on_config_changed())); | |
348 | connect(&opts->binding(), SIGNAL(config_changed()), | |
349 | this, SLOT(on_config_changed())); | |
350 | ||
351 | // Update sweep timing widgets. | |
352 | update_sample_count_selector(); | |
353 | update_sample_rate_selector(); | |
354 | } | |
355 | ||
356 | void SamplingBar::commit_sample_count() | |
357 | { | |
358 | uint64_t sample_count = 0; | |
359 | ||
360 | if (_updating_sample_count) | |
361 | return; | |
362 | ||
363 | const shared_ptr<Device> device = get_selected_device(); | |
364 | if (!device) | |
365 | return; | |
366 | ||
367 | sample_count = _sample_count.value(); | |
368 | ||
369 | // Set the sample count | |
370 | assert(!_updating_sample_count); | |
371 | _updating_sample_count = true; | |
372 | if (_sample_count_supported) | |
373 | { | |
374 | try { | |
375 | device->config_set(ConfigKey::LIMIT_SAMPLES, | |
376 | Glib::Variant<guint64>::create(sample_count)); | |
377 | on_config_changed(); | |
378 | } catch (Error error) { | |
379 | qDebug() << "Failed to configure sample count."; | |
380 | return; | |
381 | } | |
382 | } | |
383 | _updating_sample_count = false; | |
384 | } | |
385 | ||
386 | void SamplingBar::commit_sample_rate() | |
387 | { | |
388 | uint64_t sample_rate = 0; | |
389 | ||
390 | if (_updating_sample_rate) | |
391 | return; | |
392 | ||
393 | const shared_ptr<Device> device = get_selected_device(); | |
394 | if (!device) | |
395 | return; | |
396 | ||
397 | sample_rate = _sample_rate.value(); | |
398 | if (sample_rate == 0) | |
399 | return; | |
400 | ||
401 | // Set the samplerate | |
402 | assert(!_updating_sample_rate); | |
403 | _updating_sample_rate = true; | |
404 | try { | |
405 | device->config_set(ConfigKey::SAMPLERATE, | |
406 | Glib::Variant<guint64>::create(sample_rate)); | |
407 | on_config_changed(); | |
408 | } catch (Error error) { | |
409 | qDebug() << "Failed to configure samplerate."; | |
410 | return; | |
411 | } | |
412 | _updating_sample_rate = false; | |
413 | } | |
414 | ||
415 | void SamplingBar::on_device_selected() | |
416 | { | |
417 | if (_updating_device_selector) | |
418 | return; | |
419 | ||
420 | shared_ptr<Device> device = get_selected_device(); | |
421 | if (!device) | |
422 | return; | |
423 | ||
424 | _session.set_device(device); | |
425 | ||
426 | update_device_config_widgets(); | |
427 | } | |
428 | ||
429 | void SamplingBar::on_sample_count_changed() | |
430 | { | |
431 | commit_sample_count(); | |
432 | } | |
433 | ||
434 | void SamplingBar::on_sample_rate_changed() | |
435 | { | |
436 | commit_sample_rate(); | |
437 | } | |
438 | ||
439 | void SamplingBar::on_run_stop() | |
440 | { | |
441 | commit_sample_count(); | |
442 | commit_sample_rate(); | |
443 | run_stop(); | |
444 | } | |
445 | ||
446 | void SamplingBar::on_config_changed() | |
447 | { | |
448 | commit_sample_count(); | |
449 | update_sample_count_selector(); | |
450 | commit_sample_rate(); | |
451 | update_sample_rate_selector(); | |
452 | } | |
453 | ||
454 | bool SamplingBar::eventFilter(QObject *watched, QEvent *event) | |
455 | { | |
456 | if ((watched == &_sample_count || watched == &_sample_rate) && | |
457 | (event->type() == QEvent::ToolTip)) { | |
458 | double sec = (double)_sample_count.value() / _sample_rate.value(); | |
459 | QHelpEvent *help_event = static_cast<QHelpEvent*>(event); | |
460 | ||
461 | QString str = tr("Total sampling time: %1").arg(pv::util::format_second(sec)); | |
462 | QToolTip::showText(help_event->globalPos(), str); | |
463 | ||
464 | return true; | |
465 | } | |
466 | ||
467 | return false; | |
468 | } | |
469 | ||
470 | } // namespace toolbars | |
471 | } // namespace pv |