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1 /*
2  * This file is part of the PulseView project.
3  *
4  * Copyright (C) 2012-2015 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 #include <extdef.h>
21
22 #include <algorithm>
23 #include <cassert>
24
25 #include <QAction>
26 #include <QDebug>
27 #include <QFileDialog>
28 #include <QHelpEvent>
29 #include <QMenu>
30 #include <QMessageBox>
31 #include <QSettings>
32 #include <QToolTip>
33
34 #include "mainbar.hpp"
35
36 #include <boost/algorithm/string/join.hpp>
37
38 #include <pv/data/mathsignal.hpp>
39 #include <pv/devicemanager.hpp>
40 #include <pv/devices/hardwaredevice.hpp>
41 #include <pv/devices/inputfile.hpp>
42 #include <pv/devices/sessionfile.hpp>
43 #include <pv/dialogs/connect.hpp>
44 #include <pv/dialogs/inputoutputoptions.hpp>
45 #include <pv/dialogs/storeprogress.hpp>
46 #include <pv/mainwindow.hpp>
47 #include <pv/popups/channels.hpp>
48 #include <pv/popups/deviceoptions.hpp>
49 #include <pv/util.hpp>
50 #include <pv/views/trace/view.hpp>
51 #include <pv/widgets/exportmenu.hpp>
52 #include <pv/widgets/importmenu.hpp>
53 #ifdef ENABLE_DECODE
54 #include <pv/data/decodesignal.hpp>
55 #endif
56
57 #include <libsigrokcxx/libsigrokcxx.hpp>
58
59 using std::back_inserter;
60 using std::copy;
61 using std::list;
62 using std::make_pair;
63 using std::make_shared;
64 using std::map;
65 using std::max;
66 using std::min;
67 using std::pair;
68 using std::set;
69 using std::shared_ptr;
70 using std::string;
71 using std::vector;
72
73 using sigrok::Capability;
74 using sigrok::ConfigKey;
75 using sigrok::Error;
76 using sigrok::InputFormat;
77 using sigrok::OutputFormat;
78
79 using boost::algorithm::join;
80
81 namespace pv {
82 namespace toolbars {
83
84 const uint64_t MainBar::MinSampleCount = 100ULL;
85 const uint64_t MainBar::MaxSampleCount = 1000000000000ULL;
86 const uint64_t MainBar::DefaultSampleCount = 1000000;
87
88 const char *MainBar::SettingOpenDirectory = "MainWindow/OpenDirectory";
89 const char *MainBar::SettingSaveDirectory = "MainWindow/SaveDirectory";
90
91 MainBar::MainBar(Session &session, QWidget *parent, pv::views::trace::View *view) :
92         StandardBar(session, parent, view, false),
93         action_new_view_(new QAction(this)),
94         action_open_(new QAction(this)),
95         action_save_(new QAction(this)),
96         action_save_as_(new QAction(this)),
97         action_save_selection_as_(new QAction(this)),
98         action_restore_setup_(new QAction(this)),
99         action_save_setup_(new QAction(this)),
100         action_connect_(new QAction(this)),
101         new_view_button_(new QToolButton()),
102         open_button_(new QToolButton()),
103         save_button_(new QToolButton()),
104         device_selector_(parent, session.device_manager(), action_connect_),
105         configure_button_(this),
106         configure_button_action_(nullptr),
107         channels_button_(this),
108         channels_button_action_(nullptr),
109         sample_count_(" samples", this),
110         sample_rate_("Hz", this),
111         updating_sample_rate_(false),
112         updating_sample_count_(false),
113         sample_count_supported_(false),
114 #ifdef ENABLE_DECODE
115         add_decoder_button_(new QToolButton()),
116 #endif
117         add_math_signal_button_(new QToolButton())
118 {
119         setObjectName(QString::fromUtf8("MainBar"));
120
121         setContextMenuPolicy(Qt::PreventContextMenu);
122
123         // Actions
124         action_new_view_->setText(tr("New &View"));
125         action_new_view_->setIcon(QIcon::fromTheme("window-new",
126                 QIcon(":/icons/window-new.png")));
127         connect(action_new_view_, SIGNAL(triggered(bool)),
128                 this, SLOT(on_actionNewView_triggered()));
129
130         action_open_->setText(tr("&Open..."));
131         action_open_->setIcon(QIcon::fromTheme("document-open",
132                 QIcon(":/icons/document-open.png")));
133         action_open_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_O));
134         connect(action_open_, SIGNAL(triggered(bool)),
135                 this, SLOT(on_actionOpen_triggered()));
136
137         action_restore_setup_->setText(tr("Restore Session Setu&p..."));
138         connect(action_restore_setup_, SIGNAL(triggered(bool)),
139                 this, SLOT(on_actionRestoreSetup_triggered()));
140
141         action_save_->setText(tr("&Save..."));
142         action_save_->setIcon(QIcon::fromTheme("document-save-as",
143                 QIcon(":/icons/document-save-as.png")));
144         action_save_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_S));
145         connect(action_save_, SIGNAL(triggered(bool)),
146                 this, SLOT(on_actionSave_triggered()));
147
148         action_save_as_->setText(tr("Save &As..."));
149         action_save_as_->setIcon(QIcon::fromTheme("document-save-as",
150                 QIcon(":/icons/document-save-as.png")));
151         connect(action_save_as_, SIGNAL(triggered(bool)),
152                 this, SLOT(on_actionSaveAs_triggered()));
153
154         action_save_selection_as_->setText(tr("Save Selected &Range As..."));
155         action_save_selection_as_->setIcon(QIcon::fromTheme("document-save-as",
156                 QIcon(":/icons/document-save-as.png")));
157         action_save_selection_as_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_R));
158         connect(action_save_selection_as_, SIGNAL(triggered(bool)),
159                 this, SLOT(on_actionSaveSelectionAs_triggered()));
160
161         action_save_setup_->setText(tr("Save Session Setu&p..."));
162         connect(action_save_setup_, SIGNAL(triggered(bool)),
163                 this, SLOT(on_actionSaveSetup_triggered()));
164
165         widgets::ExportMenu *menu_file_export = new widgets::ExportMenu(this,
166                 session.device_manager().context());
167         menu_file_export->setTitle(tr("&Export"));
168         connect(menu_file_export, SIGNAL(format_selected(shared_ptr<sigrok::OutputFormat>)),
169                 this, SLOT(export_file(shared_ptr<sigrok::OutputFormat>)));
170
171         widgets::ImportMenu *menu_file_import = new widgets::ImportMenu(this,
172                 session.device_manager().context());
173         menu_file_import->setTitle(tr("&Import"));
174         connect(menu_file_import, SIGNAL(format_selected(shared_ptr<sigrok::InputFormat>)),
175                 this, SLOT(import_file(shared_ptr<sigrok::InputFormat>)));
176
177         action_connect_->setText(tr("&Connect to Device..."));
178         connect(action_connect_, SIGNAL(triggered(bool)),
179                 this, SLOT(on_actionConnect_triggered()));
180
181         // New view button
182         QMenu *menu_new_view = new QMenu();
183         connect(menu_new_view, SIGNAL(triggered(QAction*)),
184                 this, SLOT(on_actionNewView_triggered(QAction*)));
185
186         for (int i = 0; i < views::ViewTypeCount; i++) {
187                 QAction *const action = menu_new_view->addAction(tr(views::ViewTypeNames[i]));
188                 action->setData(QVariant::fromValue(i));
189         }
190
191         new_view_button_->setMenu(menu_new_view);
192         new_view_button_->setDefaultAction(action_new_view_);
193         new_view_button_->setPopupMode(QToolButton::MenuButtonPopup);
194
195         // Open button
196         vector<QAction*> open_actions;
197         open_actions.push_back(action_open_);
198         QAction* separator_o = new QAction(this);
199         separator_o->setSeparator(true);
200         open_actions.push_back(separator_o);
201         open_actions.push_back(action_restore_setup_);
202
203         widgets::ImportMenu *import_menu = new widgets::ImportMenu(this,
204                 session.device_manager().context(), open_actions);
205         connect(import_menu, SIGNAL(format_selected(shared_ptr<sigrok::InputFormat>)),
206                 this, SLOT(import_file(shared_ptr<sigrok::InputFormat>)));
207
208         open_button_->setMenu(import_menu);
209         open_button_->setDefaultAction(action_open_);
210         open_button_->setPopupMode(QToolButton::MenuButtonPopup);
211
212         // Save button
213         vector<QAction*> save_actions;
214         save_actions.push_back(action_save_);
215         save_actions.push_back(action_save_as_);
216         save_actions.push_back(action_save_selection_as_);
217         QAction* separator_s = new QAction(this);
218         separator_s->setSeparator(true);
219         save_actions.push_back(separator_s);
220         save_actions.push_back(action_save_setup_);
221
222         widgets::ExportMenu *export_menu = new widgets::ExportMenu(this,
223                 session.device_manager().context(), save_actions);
224         connect(export_menu, SIGNAL(format_selected(shared_ptr<sigrok::OutputFormat>)),
225                 this, SLOT(export_file(shared_ptr<sigrok::OutputFormat>)));
226
227         save_button_->setMenu(export_menu);
228         save_button_->setDefaultAction(action_save_);
229         save_button_->setPopupMode(QToolButton::MenuButtonPopup);
230
231         // Device selector menu
232         connect(&device_selector_, SIGNAL(device_selected()),
233                 this, SLOT(on_device_selected()));
234
235         // Setup the decoder button
236 #ifdef ENABLE_DECODE
237         add_decoder_button_->setIcon(QIcon(":/icons/add-decoder.svg"));
238         add_decoder_button_->setPopupMode(QToolButton::InstantPopup);
239         add_decoder_button_->setToolTip(tr("Add protocol decoder"));
240         add_decoder_button_->setShortcut(QKeySequence(Qt::Key_D));
241
242         connect(add_decoder_button_, SIGNAL(clicked()),
243                 this, SLOT(on_add_decoder_clicked()));
244 #endif
245
246         // Setup the math signal button
247         add_math_signal_button_->setIcon(QIcon(":/icons/add-math-signal.svg"));
248         add_math_signal_button_->setPopupMode(QToolButton::InstantPopup);
249         add_math_signal_button_->setToolTip(tr("Add math signal"));
250         add_math_signal_button_->setShortcut(QKeySequence(Qt::Key_M));
251
252         connect(add_math_signal_button_, SIGNAL(clicked()),
253                 this, SLOT(on_add_math_signal_clicked()));
254
255
256         connect(&sample_count_, SIGNAL(value_changed()),
257                 this, SLOT(on_sample_count_changed()));
258         connect(&sample_rate_, SIGNAL(value_changed()),
259                 this, SLOT(on_sample_rate_changed()));
260
261         sample_count_.show_min_max_step(0, UINT64_MAX, 1);
262
263         set_capture_state(pv::Session::Stopped);
264
265         configure_button_.setToolTip(tr("Configure Device"));
266         configure_button_.setIcon(QIcon::fromTheme("preferences-system",
267                 QIcon(":/icons/preferences-system.png")));
268
269         channels_button_.setToolTip(tr("Configure Channels"));
270         channels_button_.setIcon(QIcon(":/icons/channels.svg"));
271
272         add_toolbar_widgets();
273
274         sample_count_.installEventFilter(this);
275         sample_rate_.installEventFilter(this);
276
277         // Setup session_ events
278         connect(&session_, SIGNAL(capture_state_changed(int)),
279                 this, SLOT(on_capture_state_changed(int)));
280         connect(&session, SIGNAL(device_changed()),
281                 this, SLOT(on_device_changed()));
282
283         update_device_list();
284 }
285
286 void MainBar::update_device_list()
287 {
288         DeviceManager &mgr = session_.device_manager();
289         shared_ptr<devices::Device> selected_device = session_.device();
290         list< shared_ptr<devices::Device> > devs;
291
292         copy(mgr.devices().begin(), mgr.devices().end(), back_inserter(devs));
293
294         if (std::find(devs.begin(), devs.end(), selected_device) == devs.end())
295                 devs.push_back(selected_device);
296
297         device_selector_.set_device_list(devs, selected_device);
298         update_device_config_widgets();
299 }
300
301 void MainBar::set_capture_state(pv::Session::capture_state state)
302 {
303         bool ui_enabled = (state == pv::Session::Stopped) ? true : false;
304
305         device_selector_.setEnabled(ui_enabled);
306         configure_button_.setEnabled(ui_enabled);
307         channels_button_.setEnabled(ui_enabled);
308         sample_count_.setEnabled(ui_enabled);
309         sample_rate_.setEnabled(ui_enabled);
310 }
311
312 void MainBar::reset_device_selector()
313 {
314         device_selector_.reset();
315 }
316
317 QAction* MainBar::action_open() const
318 {
319         return action_open_;
320 }
321
322 QAction* MainBar::action_save() const
323 {
324         return action_save_;
325 }
326
327 QAction* MainBar::action_save_as() const
328 {
329         return action_save_as_;
330 }
331
332 QAction* MainBar::action_save_selection_as() const
333 {
334         return action_save_selection_as_;
335 }
336
337 QAction* MainBar::action_connect() const
338 {
339         return action_connect_;
340 }
341
342 void MainBar::update_sample_rate_selector()
343 {
344         Glib::VariantContainerBase gvar_dict;
345         GVariant *gvar_list;
346         const uint64_t *elements = nullptr;
347         gsize num_elements;
348         map< const ConfigKey*, set<Capability> > keys;
349
350         if (updating_sample_rate_) {
351                 sample_rate_.show_none();
352                 return;
353         }
354
355         const shared_ptr<devices::Device> device = device_selector_.selected_device();
356         if (!device)
357                 return;
358
359         assert(!updating_sample_rate_);
360         updating_sample_rate_ = true;
361
362         const shared_ptr<sigrok::Device> sr_dev = device->device();
363
364         sample_rate_.allow_user_entered_values(false);
365         if (sr_dev->config_check(ConfigKey::EXTERNAL_CLOCK, Capability::GET)) {
366                 try {
367                         auto gvar = sr_dev->config_get(ConfigKey::EXTERNAL_CLOCK);
368                         if (gvar.gobj()) {
369                                 bool value = Glib::VariantBase::cast_dynamic<Glib::Variant<bool>>(
370                                         gvar).get();
371                                 sample_rate_.allow_user_entered_values(value);
372                         }
373                 } catch (Error& error) {
374                         // Do nothing
375                 }
376         }
377
378
379         if (sr_dev->config_check(ConfigKey::SAMPLERATE, Capability::LIST)) {
380                 try {
381                         gvar_dict = sr_dev->config_list(ConfigKey::SAMPLERATE);
382                 } catch (Error& error) {
383                         qDebug() << tr("Failed to get sample rate list:") << error.what();
384                 }
385         } else {
386                 sample_rate_.show_none();
387                 updating_sample_rate_ = false;
388                 return;
389         }
390
391         if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
392                         "samplerate-steps", G_VARIANT_TYPE("at")))) {
393                 elements = (const uint64_t *)g_variant_get_fixed_array(
394                         gvar_list, &num_elements, sizeof(uint64_t));
395
396                 const uint64_t min = elements[0];
397                 const uint64_t max = elements[1];
398                 const uint64_t step = elements[2];
399
400                 g_variant_unref(gvar_list);
401
402                 assert(min > 0);
403                 assert(max > 0);
404                 assert(max > min);
405                 assert(step > 0);
406
407                 if (step == 1)
408                         sample_rate_.show_125_list(min, max);
409                 else {
410                         // When the step is not 1, we cam't make a 1-2-5-10
411                         // list of sample rates, because we may not be able to
412                         // make round numbers. Therefore in this case, show a
413                         // spin box.
414                         sample_rate_.show_min_max_step(min, max, step);
415                 }
416         } else if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
417                         "samplerates", G_VARIANT_TYPE("at")))) {
418                 elements = (const uint64_t *)g_variant_get_fixed_array(
419                         gvar_list, &num_elements, sizeof(uint64_t));
420                 sample_rate_.show_list(elements, num_elements);
421                 g_variant_unref(gvar_list);
422         }
423         updating_sample_rate_ = false;
424
425         update_sample_rate_selector_value();
426 }
427
428 void MainBar::update_sample_rate_selector_value()
429 {
430         if (updating_sample_rate_)
431                 return;
432
433         const shared_ptr<devices::Device> device = device_selector_.selected_device();
434         if (!device)
435                 return;
436
437         try {
438                 auto gvar = device->device()->config_get(ConfigKey::SAMPLERATE);
439                 uint64_t samplerate =
440                         Glib::VariantBase::cast_dynamic<Glib::Variant<guint64>>(gvar).get();
441                 assert(!updating_sample_rate_);
442                 updating_sample_rate_ = true;
443                 sample_rate_.set_value(samplerate);
444                 updating_sample_rate_ = false;
445         } catch (Error& error) {
446                 qDebug() << tr("Failed to get sample rate:") << error.what();
447         }
448 }
449
450 void MainBar::update_sample_count_selector()
451 {
452         if (updating_sample_count_)
453                 return;
454
455         const shared_ptr<devices::Device> device = device_selector_.selected_device();
456         if (!device)
457                 return;
458
459         const shared_ptr<sigrok::Device> sr_dev = device->device();
460
461         assert(!updating_sample_count_);
462         updating_sample_count_ = true;
463
464         if (!sample_count_supported_) {
465                 sample_count_.show_none();
466                 updating_sample_count_ = false;
467                 return;
468         }
469
470         uint64_t sample_count = sample_count_.value();
471         uint64_t min_sample_count = 0;
472         uint64_t max_sample_count = MaxSampleCount;
473         bool default_count_set = false;
474
475         if (sample_count == 0) {
476                 sample_count = DefaultSampleCount;
477                 default_count_set = true;
478         }
479
480         if (sr_dev->config_check(ConfigKey::LIMIT_SAMPLES, Capability::LIST)) {
481                 try {
482                         auto gvar = sr_dev->config_list(ConfigKey::LIMIT_SAMPLES);
483                         if (gvar.gobj())
484                                 g_variant_get(gvar.gobj(), "(tt)",
485                                         &min_sample_count, &max_sample_count);
486                 } catch (Error& error) {
487                         qDebug() << tr("Failed to get sample limit list:") << error.what();
488                 }
489         }
490
491         min_sample_count = min(max(min_sample_count, MinSampleCount),
492                 max_sample_count);
493
494         sample_count_.show_125_list(min_sample_count, max_sample_count);
495
496         if (sr_dev->config_check(ConfigKey::LIMIT_SAMPLES, Capability::GET)) {
497                 auto gvar = sr_dev->config_get(ConfigKey::LIMIT_SAMPLES);
498                 sample_count = g_variant_get_uint64(gvar.gobj());
499                 if (sample_count == 0) {
500                         sample_count = DefaultSampleCount;
501                         default_count_set = true;
502                 }
503                 sample_count = min(max(sample_count, MinSampleCount),
504                         max_sample_count);
505         }
506
507         sample_count_.set_value(sample_count);
508
509         updating_sample_count_ = false;
510
511         // If we show the default rate then make sure the device uses the same
512         if (default_count_set)
513                 commit_sample_count();
514 }
515
516 void MainBar::update_device_config_widgets()
517 {
518         using namespace pv::popups;
519
520         const shared_ptr<devices::Device> device = device_selector_.selected_device();
521
522         // Hide the widgets if no device is selected
523         channels_button_action_->setVisible(!!device);
524         if (!device) {
525                 configure_button_action_->setVisible(false);
526                 sample_count_.show_none();
527                 sample_rate_.show_none();
528                 return;
529         }
530
531         const shared_ptr<sigrok::Device> sr_dev = device->device();
532         if (!sr_dev)
533                 return;
534
535         // Update the configure popup
536         DeviceOptions *const opts = new DeviceOptions(sr_dev, this);
537         configure_button_action_->setVisible(!opts->binding().properties().empty());
538         configure_button_.set_popup(opts);
539
540         // Update the channels popup
541         Channels *const channels = new Channels(session_, this);
542         channels_button_.set_popup(channels);
543
544         // Update supported options.
545         sample_count_supported_ = false;
546
547         if (sr_dev->config_check(ConfigKey::LIMIT_SAMPLES, Capability::SET))
548                 sample_count_supported_ = true;
549
550         // Add notification of reconfigure events
551         disconnect(this, SLOT(on_config_changed()));
552         connect(&opts->binding(), SIGNAL(config_changed()),
553                 this, SLOT(on_config_changed()));
554
555         // Update sweep timing widgets.
556         update_sample_count_selector();
557         update_sample_rate_selector();
558 }
559
560 void MainBar::commit_sample_rate()
561 {
562         uint64_t sample_rate = 0;
563
564         const shared_ptr<devices::Device> device = device_selector_.selected_device();
565         if (!device)
566                 return;
567
568         const shared_ptr<sigrok::Device> sr_dev = device->device();
569
570         sample_rate = sample_rate_.value();
571
572         try {
573                 sr_dev->config_set(ConfigKey::SAMPLERATE,
574                         Glib::Variant<guint64>::create(sample_rate));
575                 update_sample_rate_selector();
576         } catch (Error& error) {
577                 qDebug() << tr("Failed to configure samplerate:") << error.what();
578                 return;
579         }
580
581         // Devices with built-in memory might impose limits on certain
582         // configurations, so let's check what sample count the driver
583         // lets us use now.
584         update_sample_count_selector();
585 }
586
587 void MainBar::commit_sample_count()
588 {
589         uint64_t sample_count = 0;
590
591         const shared_ptr<devices::Device> device = device_selector_.selected_device();
592         if (!device)
593                 return;
594
595         const shared_ptr<sigrok::Device> sr_dev = device->device();
596
597         sample_count = sample_count_.value();
598         if (sample_count_supported_) {
599                 try {
600                         sr_dev->config_set(ConfigKey::LIMIT_SAMPLES,
601                                 Glib::Variant<guint64>::create(sample_count));
602                         update_sample_count_selector();
603                 } catch (Error& error) {
604                         qDebug() << tr("Failed to configure sample count:") << error.what();
605                         return;
606                 }
607         }
608
609         // Devices with built-in memory might impose limits on certain
610         // configurations, so let's check what sample rate the driver
611         // lets us use now.
612         update_sample_rate_selector();
613 }
614
615 void MainBar::show_session_error(const QString text, const QString info_text)
616 {
617         QMessageBox msg(this);
618         msg.setText(text + "\n\n" + info_text);
619         msg.setStandardButtons(QMessageBox::Ok);
620         msg.setIcon(QMessageBox::Warning);
621         msg.exec();
622 }
623
624 void MainBar::export_file(shared_ptr<OutputFormat> format, bool selection_only, QString file_name)
625 {
626         using pv::dialogs::StoreProgress;
627
628         // Stop any currently running capture session
629         session_.stop_capture();
630
631         QSettings settings;
632         const QString dir = settings.value(SettingSaveDirectory).toString();
633
634         pair<uint64_t, uint64_t> sample_range;
635
636         // Selection only? Verify that the cursors are active and fetch their values
637         if (selection_only) {
638                 views::trace::View *trace_view =
639                         qobject_cast<views::trace::View*>(session_.main_view().get());
640
641                 if (!trace_view->cursors()->enabled()) {
642                         show_session_error(tr("Missing Cursors"), tr("You need to set the " \
643                                 "cursors before you can save the data enclosed by them " \
644                                 "to a session file (e.g. using the Show Cursors button)."));
645                         return;
646                 }
647
648                 const double samplerate = session_.get_samplerate();
649
650                 const pv::util::Timestamp& start_time = trace_view->cursors()->first()->time();
651                 const pv::util::Timestamp& end_time = trace_view->cursors()->second()->time();
652
653                 const uint64_t start_sample = (uint64_t)max(
654                         0.0, start_time.convert_to<double>() * samplerate);
655                 const uint64_t end_sample = (uint64_t)max(
656                         0.0, end_time.convert_to<double>() * samplerate);
657
658                 if ((start_sample == 0) && (end_sample == 0)) {
659                         // Both cursors are negative and were clamped to 0
660                         show_session_error(tr("Invalid Range"), tr("The cursors don't " \
661                                 "define a valid range of samples."));
662                         return;
663                 }
664
665                 sample_range = make_pair(start_sample, end_sample);
666         } else {
667                 sample_range = make_pair(0, 0);
668         }
669
670         // Construct the filter
671         const vector<string> exts = format->extensions();
672         QString filter = tr("%1 files ").arg(
673                 QString::fromStdString(format->description()));
674
675         if (exts.empty())
676                 filter += "(*)";
677         else
678                 filter += QString("(*.%1);;%2 (*)").arg(
679                         QString::fromStdString(join(exts, ", *.")),
680                         tr("All Files"));
681
682         // Show the file dialog
683         if (file_name.isEmpty())
684                 file_name = QFileDialog::getSaveFileName(this, tr("Save File"), dir, filter);
685
686         if (file_name.isEmpty())
687                 return;
688
689         const QString abs_path = QFileInfo(file_name).absolutePath();
690         settings.setValue(SettingSaveDirectory, abs_path);
691
692         // Show the options dialog
693         map<string, Glib::VariantBase> options;
694         if (!format->options().empty()) {
695                 dialogs::InputOutputOptions dlg(
696                         tr("Export %1").arg(QString::fromStdString(
697                                 format->description())),
698                         format->options(), this);
699                 if (!dlg.exec())
700                         return;
701                 options = dlg.options();
702         }
703
704         if (!selection_only) {
705                 if (format == session_.device_manager().context()->output_formats()["srzip"]) {
706                         session_.set_save_path(QFileInfo(file_name).absolutePath());
707                         session_.set_name(QFileInfo(file_name).fileName());
708                 } else
709                         session_.set_save_path("");
710         }
711
712         StoreProgress *dlg = new StoreProgress(file_name, format, options,
713                 sample_range, session_, this);
714         dlg->run();
715 }
716
717 void MainBar::import_file(shared_ptr<InputFormat> format)
718 {
719         assert(format);
720
721         QSettings settings;
722         const QString dir = settings.value(SettingOpenDirectory).toString();
723
724         // Construct the filter
725         const vector<string> exts = format->extensions();
726         const QString filter_exts = exts.empty() ? "" : QString::fromStdString("%1 (%2)").arg(
727                 tr("%1 files").arg(QString::fromStdString(format->description())),
728                 QString::fromStdString("*.%1").arg(QString::fromStdString(join(exts, " *."))));
729         const QString filter_all = QString::fromStdString("%1 (%2)").arg(
730                 tr("All Files"), QString::fromStdString("*"));
731         const QString filter = QString::fromStdString("%1%2%3").arg(
732                 exts.empty() ? "" : filter_exts,
733                 exts.empty() ? "" : ";;",
734                 filter_all);
735
736         // Show the file dialog
737         const QString file_name = QFileDialog::getOpenFileName(
738                 this, tr("Import File"), dir, filter);
739
740         if (file_name.isEmpty())
741                 return;
742
743         // Show the options dialog
744         map<string, Glib::VariantBase> options;
745         if (!format->options().empty()) {
746                 dialogs::InputOutputOptions dlg(
747                         tr("Import %1").arg(QString::fromStdString(
748                                 format->description())),
749                         format->options(), this);
750                 if (!dlg.exec())
751                         return;
752                 options = dlg.options();
753         }
754
755         session_.load_file(file_name, "", format, options);
756
757         const QString abs_path = QFileInfo(file_name).absolutePath();
758         settings.setValue(SettingOpenDirectory, abs_path);
759 }
760
761 void MainBar::on_device_selected()
762 {
763         shared_ptr<devices::Device> device = device_selector_.selected_device();
764
765         if (device)
766                 session_.select_device(device);
767         else
768                 reset_device_selector();
769 }
770
771 void MainBar::on_device_changed()
772 {
773         update_device_list();
774         update_device_config_widgets();
775 }
776
777 void MainBar::on_capture_state_changed(int state)
778 {
779         set_capture_state((pv::Session::capture_state)state);
780 }
781
782 void MainBar::on_sample_count_changed()
783 {
784         if (!updating_sample_count_)
785                 commit_sample_count();
786 }
787
788 void MainBar::on_sample_rate_changed()
789 {
790         if (!updating_sample_rate_)
791                 commit_sample_rate();
792 }
793
794 void MainBar::on_config_changed()
795 {
796         // We want to also call update_sample_rate_selector() here in case
797         // the user changed the SR_CONF_EXTERNAL_CLOCK option. However,
798         // commit_sample_rate() does this already, so we don't call it here
799
800         commit_sample_count();
801         commit_sample_rate();
802 }
803
804 void MainBar::on_actionNewView_triggered(QAction* action)
805 {
806         if (action)
807                 new_view(&session_, action->data().toInt());
808         else
809                 // When the icon of the button is clicked, we create a trace view
810                 new_view(&session_, views::ViewTypeTrace);
811 }
812
813 void MainBar::on_actionOpen_triggered()
814 {
815         QSettings settings;
816         const QString dir = settings.value(SettingOpenDirectory).toString();
817
818         // Show the dialog
819         const QString file_name = QFileDialog::getOpenFileName(
820                 this, tr("Open File"), dir, tr(
821                         "sigrok Sessions (*.sr);;"
822                         "All Files (*)"));
823
824         if (!file_name.isEmpty()) {
825                 session_.load_file(file_name);
826
827                 const QString abs_path = QFileInfo(file_name).absolutePath();
828                 settings.setValue(SettingOpenDirectory, abs_path);
829         }
830 }
831
832 void MainBar::on_actionSave_triggered()
833 {
834         // A path is only set if we loaded/saved an srzip file before
835         if (session_.save_path().isEmpty()) {
836                 on_actionSaveAs_triggered();
837                 return;
838         }
839
840         QFileInfo fi = QFileInfo(QDir(session_.save_path()), session_.name());
841         export_file(session_.device_manager().context()->output_formats()["srzip"], false,
842                 fi.absoluteFilePath());
843 }
844
845 void MainBar::on_actionSaveAs_triggered()
846 {
847         export_file(session_.device_manager().context()->output_formats()["srzip"]);
848 }
849
850 void MainBar::on_actionSaveSelectionAs_triggered()
851 {
852         export_file(session_.device_manager().context()->output_formats()["srzip"], true);
853 }
854
855 void MainBar::on_actionSaveSetup_triggered()
856 {
857         QSettings settings;
858         const QString dir = settings.value(SettingSaveDirectory).toString();
859
860         const QString file_name = QFileDialog::getSaveFileName(
861                 this, tr("Save File"), dir, tr(
862                                 "PulseView Session Setups (*.pvs);;"
863                                 "All Files (*)"));
864
865         if (file_name.isEmpty())
866                 return;
867
868         QSettings settings_storage(file_name, QSettings::IniFormat);
869         session_.save_setup(settings_storage);
870 }
871
872 void MainBar::on_actionRestoreSetup_triggered()
873 {
874         QSettings settings;
875         const QString dir = settings.value(SettingSaveDirectory).toString();
876
877         const QString file_name = QFileDialog::getOpenFileName(
878                 this, tr("Open File"), dir, tr(
879                                 "PulseView Session Setups (*.pvs);;"
880                                 "All Files (*)"));
881
882         if (file_name.isEmpty())
883                 return;
884
885         QSettings settings_storage(file_name, QSettings::IniFormat);
886         session_.restore_setup(settings_storage);
887 }
888
889 void MainBar::on_actionConnect_triggered()
890 {
891         // Stop any currently running capture session
892         session_.stop_capture();
893
894         dialogs::Connect dlg(this, session_.device_manager());
895
896         // If the user selected a device, select it in the device list. Select the
897         // current device otherwise.
898         if (dlg.exec())
899                 session_.select_device(dlg.get_selected_device());
900
901         update_device_list();
902 }
903
904 void MainBar::on_add_decoder_clicked()
905 {
906         show_decoder_selector(&session_);
907 }
908
909 void MainBar::on_add_math_signal_clicked()
910 {
911         shared_ptr<data::SignalBase> signal = make_shared<data::MathSignal>(session_);
912         session_.add_generated_signal(signal);
913 }
914
915 void MainBar::add_toolbar_widgets()
916 {
917         addWidget(new_view_button_);
918         addSeparator();
919         addWidget(open_button_);
920         addWidget(save_button_);
921         addSeparator();
922
923         StandardBar::add_toolbar_widgets();
924
925         addWidget(&device_selector_);
926         configure_button_action_ = addWidget(&configure_button_);
927         channels_button_action_ = addWidget(&channels_button_);
928         addWidget(&sample_count_);
929         addWidget(&sample_rate_);
930 #ifdef ENABLE_DECODE
931         addSeparator();
932         addWidget(add_decoder_button_);
933 #endif
934         addWidget(add_math_signal_button_);
935 }
936
937 bool MainBar::eventFilter(QObject *watched, QEvent *event)
938 {
939         if (sample_count_supported_ && (watched == &sample_count_ ||
940                 watched == &sample_rate_) &&
941                 (event->type() == QEvent::ToolTip)) {
942
943                 auto sec = pv::util::Timestamp(sample_count_.value()) / sample_rate_.value();
944                 QHelpEvent *help_event = static_cast<QHelpEvent*>(event);
945
946                 QString str = tr("Total sampling time: %1").arg(
947                         pv::util::format_time_si(sec, pv::util::SIPrefix::unspecified, 0, "s", false));
948                 QToolTip::showText(help_event->globalPos(), str);
949
950                 return true;
951         }
952
953         return false;
954 }
955
956 } // namespace toolbars
957 } // namespace pv