]> sigrok.org Git - pulseview.git/blobdiff - pv/toolbars/mainbar.cpp
Improve icon/theme handling.
[pulseview.git] / pv / toolbars / mainbar.cpp
index 67cfa4c64d2dbdad9d221614c5da868d4a1a56b8..a3b722cc3dcfa041f6bc913c451d6f4e4fec8410 100644 (file)
@@ -14,8 +14,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <extdef.h>
 
 #include <QAction>
 #include <QDebug>
+#include <QFileDialog>
 #include <QHelpEvent>
 #include <QMenu>
+#include <QMessageBox>
+#include <QSettings>
 #include <QToolTip>
 
 #include "mainbar.hpp"
 
+#include <boost/algorithm/string/join.hpp>
+
 #include <pv/devicemanager.hpp>
+#include <pv/devices/hardwaredevice.hpp>
+#include <pv/devices/inputfile.hpp>
+#include <pv/devices/sessionfile.hpp>
+#include <pv/dialogs/connect.hpp>
+#include <pv/dialogs/inputoutputoptions.hpp>
+#include <pv/dialogs/storeprogress.hpp>
 #include <pv/mainwindow.hpp>
-#include <pv/popups/deviceoptions.hpp>
 #include <pv/popups/channels.hpp>
+#include <pv/popups/deviceoptions.hpp>
 #include <pv/util.hpp>
+#include <pv/view/view.hpp>
+#include <pv/widgets/exportmenu.hpp>
+#include <pv/widgets/importmenu.hpp>
+#ifdef ENABLE_DECODE
+#include <pv/widgets/decodermenu.hpp>
+#endif
 
 #include <libsigrokcxx/libsigrokcxx.hpp>
 
 using std::back_inserter;
 using std::copy;
 using std::list;
+using std::make_pair;
 using std::map;
 using std::max;
 using std::min;
+using std::pair;
+using std::set;
 using std::shared_ptr;
 using std::string;
 using std::vector;
 
 using sigrok::Capability;
 using sigrok::ConfigKey;
-using sigrok::Device;
 using sigrok::Error;
+using sigrok::InputFormat;
+using sigrok::OutputFormat;
+
+using boost::algorithm::join;
 
 namespace pv {
 namespace toolbars {
@@ -61,31 +83,111 @@ const uint64_t MainBar::MinSampleCount = 100ULL;
 const uint64_t MainBar::MaxSampleCount = 1000000000000ULL;
 const uint64_t MainBar::DefaultSampleCount = 1000000;
 
-MainBar::MainBar(Session &session, MainWindow &main_window) :
-       QToolBar("Sampling Bar", &main_window),
-       session_(session),
-       main_window_(main_window),
-       device_selector_(this, session.device_manager(),
-               main_window.action_connect()),
+const char *MainBar::SettingOpenDirectory = "MainWindow/OpenDirectory";
+const char *MainBar::SettingSaveDirectory = "MainWindow/SaveDirectory";
+
+MainBar::MainBar(Session &session, QWidget *parent,
+               pv::views::TraceView::View *view) :
+       StandardBar(session, parent, view, false),
+       action_new_view_(new QAction(this)),
+       action_open_(new QAction(this)),
+       action_save_as_(new QAction(this)),
+       action_save_selection_as_(new QAction(this)),
+       action_connect_(new QAction(this)),
+       open_button_(new QToolButton()),
+       save_button_(new QToolButton()),
+       device_selector_(parent, session.device_manager(),
+               action_connect_),
        configure_button_(this),
-       configure_button_action_(NULL),
+       configure_button_action_(nullptr),
        channels_button_(this),
+       channels_button_action_(nullptr),
        sample_count_(" samples", this),
        sample_rate_("Hz", this),
        updating_sample_rate_(false),
        updating_sample_count_(false),
-       sample_count_supported_(false),
-       icon_red_(":/icons/status-red.svg"),
-       icon_green_(":/icons/status-green.svg"),
-       icon_grey_(":/icons/status-grey.svg"),
-       run_stop_button_(this),
-       menu_button_(this)
+       sample_count_supported_(false)
+#ifdef ENABLE_DECODE
+       , add_decoder_button_(new QToolButton()),
+       menu_decoders_add_(new pv::widgets::DecoderMenu(this, true))
+#endif
 {
        setObjectName(QString::fromUtf8("MainBar"));
 
-       setMovable(false);
-       setFloatable(false);
-       setContextMenuPolicy(Qt::PreventContextMenu);
+       // Actions
+       action_new_view_->setText(tr("New &View"));
+       action_new_view_->setIcon(QIcon::fromTheme("window-new",
+               QIcon(":/icons/window-new.png")));
+       connect(action_new_view_, SIGNAL(triggered(bool)),
+               this, SLOT(on_actionNewView_triggered()));
+
+       action_open_->setText(tr("&Open..."));
+       action_open_->setIcon(QIcon::fromTheme("document-open",
+               QIcon(":/icons/document-open.png")));
+       action_open_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_O));
+       connect(action_open_, SIGNAL(triggered(bool)),
+               this, SLOT(on_actionOpen_triggered()));
+
+       action_save_as_->setText(tr("&Save As..."));
+       action_save_as_->setIcon(QIcon::fromTheme("document-save-as",
+               QIcon(":/icons/document-save-as.png")));
+       action_save_as_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_S));
+       connect(action_save_as_, SIGNAL(triggered(bool)),
+               this, SLOT(on_actionSaveAs_triggered()));
+
+       action_save_selection_as_->setText(tr("Save Selected &Range As..."));
+       action_save_selection_as_->setIcon(QIcon::fromTheme("document-save-as",
+               QIcon(":/icons/document-save-as.png")));
+       action_save_selection_as_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_R));
+       connect(action_save_selection_as_, SIGNAL(triggered(bool)),
+               this, SLOT(on_actionSaveSelectionAs_triggered()));
+
+       widgets::ExportMenu *menu_file_export = new widgets::ExportMenu(this,
+               session.device_manager().context());
+       menu_file_export->setTitle(tr("&Export"));
+       connect(menu_file_export,
+               SIGNAL(format_selected(shared_ptr<sigrok::OutputFormat>)),
+               this, SLOT(export_file(shared_ptr<sigrok::OutputFormat>)));
+
+       widgets::ImportMenu *menu_file_import = new widgets::ImportMenu(this,
+               session.device_manager().context());
+       menu_file_import->setTitle(tr("&Import"));
+       connect(menu_file_import,
+               SIGNAL(format_selected(shared_ptr<sigrok::InputFormat>)),
+               this, SLOT(import_file(shared_ptr<sigrok::InputFormat>)));
+
+       action_connect_->setText(tr("&Connect to Device..."));
+       connect(action_connect_, SIGNAL(triggered(bool)),
+               this, SLOT(on_actionConnect_triggered()));
+
+       // Open button
+       widgets::ImportMenu *import_menu = new widgets::ImportMenu(this,
+               session.device_manager().context(), action_open_);
+       connect(import_menu,
+               SIGNAL(format_selected(shared_ptr<sigrok::InputFormat>)),
+               this,
+               SLOT(import_file(shared_ptr<sigrok::InputFormat>)));
+
+       open_button_->setMenu(import_menu);
+       open_button_->setDefaultAction(action_open_);
+       open_button_->setPopupMode(QToolButton::MenuButtonPopup);
+
+       // Save button
+       vector<QAction *> open_actions;
+       open_actions.push_back(action_save_as_);
+       open_actions.push_back(action_save_selection_as_);
+
+       widgets::ExportMenu *export_menu = new widgets::ExportMenu(this,
+               session.device_manager().context(),
+               open_actions);
+       connect(export_menu,
+               SIGNAL(format_selected(shared_ptr<sigrok::OutputFormat>)),
+               this,
+               SLOT(export_file(shared_ptr<sigrok::OutputFormat>)));
+
+       save_button_->setMenu(export_menu);
+       save_button_->setDefaultAction(action_save_as_);
+       save_button_->setPopupMode(QToolButton::MenuButtonPopup);
 
        // Device selector menu
        connect(&device_selector_, SIGNAL(device_selected()),
@@ -93,43 +195,16 @@ MainBar::MainBar(Session &session, MainWindow &main_window) :
 
        // Setup the decoder button
 #ifdef ENABLE_DECODE
-       QToolButton *add_decoder_button = new QToolButton(this);
-       add_decoder_button->setIcon(QIcon::fromTheme("add-decoder",
-               QIcon(":/icons/add-decoder.svg")));
-       add_decoder_button->setPopupMode(QToolButton::InstantPopup);
-       add_decoder_button->setMenu(main_window_.menu_decoder_add());
+       menu_decoders_add_->setTitle(tr("&Add"));
+       connect(menu_decoders_add_, SIGNAL(decoder_selected(srd_decoder*)),
+               this, SLOT(add_decoder(srd_decoder*)));
+
+       add_decoder_button_->setIcon(QIcon(":/icons/add-decoder.svg"));
+       add_decoder_button_->setPopupMode(QToolButton::InstantPopup);
+       add_decoder_button_->setMenu(menu_decoders_add_);
+       add_decoder_button_->setToolTip(tr("Add low-level, non-stacked protocol decoder"));
 #endif
 
-       // Setup the menu
-       QMenu *const menu = new QMenu(this);
-
-       QMenu *const menu_help = new QMenu;
-       menu_help->setTitle(tr("&Help"));
-       menu_help->addAction(main_window.action_about());
-
-       menu->addAction(menu_help->menuAction());
-       menu->addSeparator();
-       menu->addAction(main_window.action_quit());
-
-       menu_button_.setMenu(menu);
-       menu_button_.setPopupMode(QToolButton::InstantPopup);
-       menu_button_.setIcon(QIcon::fromTheme("menu",
-               QIcon(":/icons/menu.svg")));
-
-       // Setup the toolbar
-       addAction(main_window.action_open());
-       addAction(main_window.action_save_as());
-       addSeparator();
-       addAction(main_window.action_view_zoom_in());
-       addAction(main_window.action_view_zoom_out());
-       addAction(main_window.action_view_zoom_fit());
-       addAction(main_window.action_view_zoom_one_to_one());
-       addSeparator();
-       addAction(main_window.action_view_show_cursors());
-       addSeparator();
-
-       connect(&run_stop_button_, SIGNAL(clicked()),
-               this, SLOT(on_run_stop()));
        connect(&sample_count_, SIGNAL(value_changed()),
                this, SLOT(on_sample_count_changed()));
        connect(&sample_rate_, SIGNAL(value_changed()),
@@ -139,101 +214,111 @@ MainBar::MainBar(Session &session, MainWindow &main_window) :
 
        set_capture_state(pv::Session::Stopped);
 
-       configure_button_.setIcon(QIcon::fromTheme("configure",
-               QIcon(":/icons/configure.png")));
-
-       channels_button_.setIcon(QIcon::fromTheme("channels",
-               QIcon(":/icons/channels.svg")));
-
-       run_stop_button_.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
-
-       addWidget(&device_selector_);
-       configure_button_action_ = addWidget(&configure_button_);
-       addWidget(&channels_button_);
-       addWidget(&sample_count_);
-       addWidget(&sample_rate_);
-       addWidget(&run_stop_button_);
-#ifdef ENABLE_DECODE
-       addSeparator();
-       addWidget(add_decoder_button);
-#endif
+       configure_button_.setToolTip(tr("Configure Device"));
+       configure_button_.setIcon(QIcon::fromTheme("preferences-system",
+               QIcon(":/icons/preferences-system.png")));
 
-       QWidget *const spacer = new QWidget();
-       spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
-       addWidget(spacer);
+       channels_button_.setToolTip(tr("Configure Channels"));
+       channels_button_.setIcon(QIcon(":/icons/channels.svg"));
 
-       addWidget(&menu_button_);
+       add_toolbar_widgets();
 
        sample_count_.installEventFilter(this);
        sample_rate_.installEventFilter(this);
+
+       // Setup session_ events
+       connect(&session_, SIGNAL(capture_state_changed(int)),
+               this, SLOT(on_capture_state_changed(int)));
+       connect(&session, SIGNAL(device_changed()),
+               this, SLOT(on_device_changed()));
+
+       update_device_list();
 }
 
 void MainBar::update_device_list()
 {
        DeviceManager &mgr = session_.device_manager();
-       shared_ptr<Device> selected_device = session_.device();
-       list< shared_ptr<Device> > devs;
+       shared_ptr<devices::Device> selected_device = session_.device();
+       list< shared_ptr<devices::Device> > devs;
 
        copy(mgr.devices().begin(), mgr.devices().end(), back_inserter(devs));
 
        if (std::find(devs.begin(), devs.end(), selected_device) == devs.end())
                devs.push_back(selected_device);
-       assert(selected_device);
 
        device_selector_.set_device_list(devs, selected_device);
        update_device_config_widgets();
 }
 
-
 void MainBar::set_capture_state(pv::Session::capture_state state)
 {
-       const QIcon *icons[] = {&icon_grey_, &icon_red_, &icon_green_};
-       run_stop_button_.setIcon(*icons[state]);
-       run_stop_button_.setText((state == pv::Session::Stopped) ?
-               tr("Run") : tr("Stop"));
-       run_stop_button_.setShortcut(QKeySequence(Qt::Key_Space));
+       bool ui_enabled = (state == pv::Session::Stopped) ? true : false;
+
+       device_selector_.setEnabled(ui_enabled);
+       configure_button_.setEnabled(ui_enabled);
+       channels_button_.setEnabled(ui_enabled);
+       sample_count_.setEnabled(ui_enabled);
+       sample_rate_.setEnabled(ui_enabled);
+}
+
+void MainBar::reset_device_selector()
+{
+       device_selector_.reset();
+}
+
+QAction* MainBar::action_open() const
+{
+       return action_open_;
+}
+
+QAction* MainBar::action_save_as() const
+{
+       return action_save_as_;
+}
+
+QAction* MainBar::action_save_selection_as() const
+{
+       return action_save_selection_as_;
+}
+
+QAction* MainBar::action_connect() const
+{
+       return action_connect_;
 }
 
 void MainBar::update_sample_rate_selector()
 {
        Glib::VariantContainerBase gvar_dict;
        GVariant *gvar_list;
-       const uint64_t *elements = NULL;
+       const uint64_t *elements = nullptr;
        gsize num_elements;
+       map< const ConfigKey*, set<Capability> > keys;
 
-       if (updating_sample_rate_)
+       if (updating_sample_rate_) {
+               sample_rate_.show_none();
                return;
+       }
 
-       const shared_ptr<Device> device = device_selector_.selected_device();
+       const shared_ptr<devices::Device> device =
+               device_selector_.selected_device();
        if (!device)
                return;
 
        assert(!updating_sample_rate_);
        updating_sample_rate_ = true;
 
-       const auto keys = device->config_keys(ConfigKey::DEVICE_OPTIONS);
-       const auto iter = keys.find(ConfigKey::SAMPLERATE);
-       if (iter != keys.end() &&
-               (*iter).second.find(sigrok::LIST) != (*iter).second.end()) {
-               const auto keys = device->config_keys(
-                       ConfigKey::DEVICE_OPTIONS);
-               try {
-                       gvar_dict = device->config_list(ConfigKey::SAMPLERATE);
-               } catch(const sigrok::Error &e) {
-                       // Failed to enunmerate samplerate
-                       (void)e;
-               }
-       }
+       const shared_ptr<sigrok::Device> sr_dev = device->device();
 
-       if (!gvar_dict) {
+       if (sr_dev->config_check(ConfigKey::SAMPLERATE, Capability::LIST)) {
+               gvar_dict = sr_dev->config_list(ConfigKey::SAMPLERATE);
+       } else {
                sample_rate_.show_none();
                updating_sample_rate_ = false;
                return;
        }
 
        if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
-                       "samplerate-steps", G_VARIANT_TYPE("at"))))
-       {
+                       "samplerate-steps", G_VARIANT_TYPE("at")))) {
                elements = (const uint64_t *)g_variant_get_fixed_array(
                                gvar_list, &num_elements, sizeof(uint64_t));
 
@@ -250,18 +335,15 @@ void MainBar::update_sample_rate_selector()
 
                if (step == 1)
                        sample_rate_.show_125_list(min, max);
-               else
-               {
+               else {
                        // When the step is not 1, we cam't make a 1-2-5-10
                        // list of sample rates, because we may not be able to
                        // make round numbers. Therefore in this case, show a
                        // spin box.
                        sample_rate_.show_min_max_step(min, max, step);
                }
-       }
-       else if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
-                       "samplerates", G_VARIANT_TYPE("at"))))
-       {
+       } else if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
+                       "samplerates", G_VARIANT_TYPE("at")))) {
                elements = (const uint64_t *)g_variant_get_fixed_array(
                                gvar_list, &num_elements, sizeof(uint64_t));
                sample_rate_.show_list(elements, num_elements);
@@ -277,12 +359,13 @@ void MainBar::update_sample_rate_selector_value()
        if (updating_sample_rate_)
                return;
 
-       const shared_ptr<Device> device = device_selector_.selected_device();
+       const shared_ptr<devices::Device> device =
+               device_selector_.selected_device();
        if (!device)
                return;
 
        try {
-               auto gvar = device->config_get(ConfigKey::SAMPLERATE);
+               auto gvar = device->device()->config_get(ConfigKey::SAMPLERATE);
                uint64_t samplerate =
                        Glib::VariantBase::cast_dynamic<Glib::Variant<guint64>>(gvar).get();
                assert(!updating_sample_rate_);
@@ -300,15 +383,17 @@ void MainBar::update_sample_count_selector()
        if (updating_sample_count_)
                return;
 
-       const shared_ptr<Device> device = device_selector_.selected_device();
+       const shared_ptr<devices::Device> device =
+               device_selector_.selected_device();
        if (!device)
                return;
 
+       const shared_ptr<sigrok::Device> sr_dev = device->device();
+
        assert(!updating_sample_count_);
        updating_sample_count_ = true;
 
-       if (!sample_count_supported_)
-       {
+       if (!sample_count_supported_) {
                sample_count_.show_none();
                updating_sample_count_ = false;
                return;
@@ -317,56 +402,67 @@ void MainBar::update_sample_count_selector()
        uint64_t sample_count = sample_count_.value();
        uint64_t min_sample_count = 0;
        uint64_t max_sample_count = MaxSampleCount;
+       bool default_count_set = false;
 
-       if (sample_count == 0)
+       if (sample_count == 0) {
                sample_count = DefaultSampleCount;
+               default_count_set = true;
+       }
 
-       const auto keys = device->config_keys(ConfigKey::DEVICE_OPTIONS);
-       const auto iter = keys.find(ConfigKey::LIMIT_SAMPLES);
-       if (iter != keys.end() &&
-               (*iter).second.find(sigrok::LIST) != (*iter).second.end()) {
-               try {
-                       auto gvar =
-                               device->config_list(ConfigKey::LIMIT_SAMPLES);
-                       if (gvar)
-                               g_variant_get(gvar.gobj(), "(tt)",
-                                       &min_sample_count, &max_sample_count);
-               } catch(const sigrok::Error &e) {
-                       // Failed to query sample limit
-                       (void)e;
-               }
+       if (sr_dev->config_check(ConfigKey::LIMIT_SAMPLES, Capability::LIST)) {
+               auto gvar = sr_dev->config_list(ConfigKey::LIMIT_SAMPLES);
+               if (gvar.gobj())
+                       g_variant_get(gvar.gobj(), "(tt)",
+                               &min_sample_count, &max_sample_count);
        }
 
        min_sample_count = min(max(min_sample_count, MinSampleCount),
                max_sample_count);
 
-       sample_count_.show_125_list(
-               min_sample_count, max_sample_count);
+       sample_count_.show_125_list(min_sample_count, max_sample_count);
 
-       try {
-               auto gvar = device->config_get(ConfigKey::LIMIT_SAMPLES);
+       if (sr_dev->config_check(ConfigKey::LIMIT_SAMPLES, Capability::GET)) {
+               auto gvar = sr_dev->config_get(ConfigKey::LIMIT_SAMPLES);
                sample_count = g_variant_get_uint64(gvar.gobj());
-               if (sample_count == 0)
+               if (sample_count == 0) {
                        sample_count = DefaultSampleCount;
+                       default_count_set = true;
+               }
                sample_count = min(max(sample_count, MinSampleCount),
                        max_sample_count);
-       } catch (Error error) {}
+       }
 
        sample_count_.set_value(sample_count);
 
        updating_sample_count_ = false;
+
+       // If we show the default rate then make sure the device uses the same
+       if (default_count_set)
+               commit_sample_count();
 }
 
 void MainBar::update_device_config_widgets()
 {
        using namespace pv::popups;
 
-       const shared_ptr<Device> device = device_selector_.selected_device();
-       if (!device)
+       const shared_ptr<devices::Device> device =
+               device_selector_.selected_device();
+
+       // Hide the widgets if no device is selected
+       channels_button_action_->setVisible(!!device);
+       if (!device) {
+               configure_button_action_->setVisible(false);
+               sample_count_.show_none();
+               sample_rate_.show_none();
+               return;
+       }
+
+       const shared_ptr<sigrok::Device> sr_dev = device->device();
+       if (!sr_dev)
                return;
 
        // Update the configure popup
-       DeviceOptions *const opts = new DeviceOptions(device, this);
+       DeviceOptions *const opts = new DeviceOptions(sr_dev, this);
        configure_button_action_->setVisible(
                !opts->binding().properties().empty());
        configure_button_.set_popup(opts);
@@ -378,29 +474,14 @@ void MainBar::update_device_config_widgets()
        // Update supported options.
        sample_count_supported_ = false;
 
-       try {
-               for (auto entry : device->config_keys(ConfigKey::DEVICE_OPTIONS))
-               {
-                       auto key = entry.first;
-                       auto capabilities = entry.second;
-                       switch (key->id()) {
-                       case SR_CONF_LIMIT_SAMPLES:
-                               if (capabilities.count(Capability::SET))
-                                       sample_count_supported_ = true;
-                               break;
-                       case SR_CONF_LIMIT_FRAMES:
-                               if (capabilities.count(Capability::SET))
-                               {
-                                       device->config_set(ConfigKey::LIMIT_FRAMES,
-                                               Glib::Variant<guint64>::create(1));
-                                       on_config_changed();
-                               }
-                               break;
-                       default:
-                               break;
-                       }
-               }
-       } catch (Error error) {}
+       if (sr_dev->config_check(ConfigKey::LIMIT_SAMPLES, Capability::SET))
+               sample_count_supported_ = true;
+
+       if (sr_dev->config_check(ConfigKey::LIMIT_FRAMES, Capability::SET)) {
+               sr_dev->config_set(ConfigKey::LIMIT_FRAMES,
+                       Glib::Variant<guint64>::create(1));
+                       on_config_changed();
+       }
 
        // Add notification of reconfigure events
        disconnect(this, SLOT(on_config_changed()));
@@ -412,109 +493,334 @@ void MainBar::update_device_config_widgets()
        update_sample_rate_selector();
 }
 
-void MainBar::commit_sample_count()
+void MainBar::commit_sample_rate()
 {
-       uint64_t sample_count = 0;
+       uint64_t sample_rate = 0;
 
-       if (updating_sample_count_)
+       const shared_ptr<devices::Device> device =
+               device_selector_.selected_device();
+       if (!device)
                return;
 
-       const shared_ptr<Device> device = device_selector_.selected_device();
+       const shared_ptr<sigrok::Device> sr_dev = device->device();
+
+       sample_rate = sample_rate_.value();
+       if (sample_rate == 0)
+               return;
+
+       try {
+               sr_dev->config_set(ConfigKey::SAMPLERATE,
+                       Glib::Variant<guint64>::create(sample_rate));
+               update_sample_rate_selector();
+       } catch (Error error) {
+               qDebug() << "Failed to configure samplerate.";
+               return;
+       }
+
+       // Devices with built-in memory might impose limits on certain
+       // configurations, so let's check what sample count the driver
+       // lets us use now.
+       update_sample_count_selector();
+}
+
+void MainBar::commit_sample_count()
+{
+       uint64_t sample_count = 0;
+
+       const shared_ptr<devices::Device> device =
+               device_selector_.selected_device();
        if (!device)
                return;
 
-       sample_count = sample_count_.value();
+       const shared_ptr<sigrok::Device> sr_dev = device->device();
 
-       // Set the sample count
-       assert(!updating_sample_count_);
-       updating_sample_count_ = true;
-       if (sample_count_supported_)
-       {
+       sample_count = sample_count_.value();
+       if (sample_count_supported_) {
                try {
-                       device->config_set(ConfigKey::LIMIT_SAMPLES,
+                       sr_dev->config_set(ConfigKey::LIMIT_SAMPLES,
                                Glib::Variant<guint64>::create(sample_count));
-                       on_config_changed();
+                       update_sample_count_selector();
                } catch (Error error) {
                        qDebug() << "Failed to configure sample count.";
                        return;
                }
        }
-       updating_sample_count_ = false;
+
+       // Devices with built-in memory might impose limits on certain
+       // configurations, so let's check what sample rate the driver
+       // lets us use now.
+       update_sample_rate_selector();
 }
 
-void MainBar::commit_sample_rate()
+void MainBar::session_error(const QString text, const QString info_text)
 {
-       uint64_t sample_rate = 0;
+       QMetaObject::invokeMethod(this, "show_session_error",
+               Qt::QueuedConnection, Q_ARG(QString, text),
+               Q_ARG(QString, info_text));
+}
 
-       if (updating_sample_rate_)
-               return;
+void MainBar::show_session_error(const QString text, const QString info_text)
+{
+       QMessageBox msg(this);
+       msg.setText(text);
+       msg.setInformativeText(info_text);
+       msg.setStandardButtons(QMessageBox::Ok);
+       msg.setIcon(QMessageBox::Warning);
+       msg.exec();
+}
 
-       const shared_ptr<Device> device = device_selector_.selected_device();
-       if (!device)
-               return;
+void MainBar::add_decoder(srd_decoder *decoder)
+{
+#ifdef ENABLE_DECODE
+       assert(decoder);
+       session_.add_decoder(decoder);
+#else
+       (void)decoder;
+#endif
+}
 
-       sample_rate = sample_rate_.value();
-       if (sample_rate == 0)
+void MainBar::export_file(shared_ptr<OutputFormat> format, bool selection_only)
+{
+       using pv::dialogs::StoreProgress;
+
+       // Stop any currently running capture session
+       session_.stop_capture();
+
+       QSettings settings;
+       const QString dir = settings.value(SettingSaveDirectory).toString();
+
+       pair<uint64_t, uint64_t> sample_range;
+
+       // Selection only? Verify that the cursors are active and fetch their values
+       if (selection_only) {
+               views::TraceView::View *trace_view =
+                       qobject_cast<views::TraceView::View*>(session_.main_view().get());
+
+               if (!trace_view->cursors()->enabled()) {
+                       show_session_error(tr("Missing Cursors"), tr("You need to set the " \
+                                       "cursors before you can save the data enclosed by them " \
+                                       "to a session file (e.g. using ALT-V - Show Cursors)."));
+                       return;
+               }
+
+               const double samplerate = session_.get_samplerate();
+
+               const pv::util::Timestamp& start_time = trace_view->cursors()->first()->time();
+               const pv::util::Timestamp& end_time = trace_view->cursors()->second()->time();
+
+               const uint64_t start_sample = (uint64_t)max(
+                       (double)0, start_time.convert_to<double>() * samplerate);
+               const uint64_t end_sample = (uint64_t)max(
+                       (double)0, end_time.convert_to<double>() * samplerate);
+
+               sample_range = make_pair(start_sample, end_sample);
+       } else {
+               sample_range = make_pair(0, 0);
+       }
+
+       // Construct the filter
+       const vector<string> exts = format->extensions();
+       QString filter = tr("%1 files ").arg(
+               QString::fromStdString(format->description()));
+
+       if (exts.empty())
+               filter += "(*.*)";
+       else
+               filter += QString("(*.%1);;%2 (*.*)").arg(
+                       QString::fromStdString(join(exts, ", *.")),
+                       tr("All Files"));
+
+       // Show the file dialog
+       const QString file_name = QFileDialog::getSaveFileName(
+               this, tr("Save File"), dir, filter);
+
+       if (file_name.isEmpty())
                return;
 
-       // Set the samplerate
-       assert(!updating_sample_rate_);
-       updating_sample_rate_ = true;
-       try {
-               device->config_set(ConfigKey::SAMPLERATE,
-                       Glib::Variant<guint64>::create(sample_rate));
-               on_config_changed();
-       } catch (Error error) {
-               qDebug() << "Failed to configure samplerate.";
+       const QString abs_path = QFileInfo(file_name).absolutePath();
+       settings.setValue(SettingSaveDirectory, abs_path);
+
+       // Show the options dialog
+       map<string, Glib::VariantBase> options;
+       if (!format->options().empty()) {
+               dialogs::InputOutputOptions dlg(
+                       tr("Export %1").arg(QString::fromStdString(
+                               format->description())),
+                       format->options(), this);
+               if (!dlg.exec())
+                       return;
+               options = dlg.options();
+       }
+
+       if (!selection_only)
+               session_.set_name(QFileInfo(file_name).fileName());
+
+       StoreProgress *dlg = new StoreProgress(file_name, format, options,
+               sample_range, session_, this);
+       dlg->run();
+}
+
+void MainBar::import_file(shared_ptr<InputFormat> format)
+{
+       assert(format);
+
+       QSettings settings;
+       const QString dir = settings.value(SettingOpenDirectory).toString();
+
+       // Construct the filter
+       const vector<string> exts = format->extensions();
+       const QString filter = exts.empty() ? "" :
+               tr("%1 files (*.%2)").arg(
+                       QString::fromStdString(format->description()),
+                       QString::fromStdString(join(exts, ", *.")));
+
+       // Show the file dialog
+       const QString file_name = QFileDialog::getOpenFileName(
+               this, tr("Import File"), dir, tr(
+                       "%1 files (*.*);;All Files (*.*)").arg(
+                       QString::fromStdString(format->description())));
+
+       if (file_name.isEmpty())
                return;
+
+       // Show the options dialog
+       map<string, Glib::VariantBase> options;
+       if (!format->options().empty()) {
+               dialogs::InputOutputOptions dlg(
+                       tr("Import %1").arg(QString::fromStdString(
+                               format->description())),
+                       format->options(), this);
+               if (!dlg.exec())
+                       return;
+               options = dlg.options();
        }
-       updating_sample_rate_ = false;
+
+       session_.load_file(file_name, format, options);
+
+       const QString abs_path = QFileInfo(file_name).absolutePath();
+       settings.setValue(SettingOpenDirectory, abs_path);
 }
 
 void MainBar::on_device_selected()
 {
-       shared_ptr<Device> device = device_selector_.selected_device();
-       if (!device)
+       shared_ptr<devices::Device> device = device_selector_.selected_device();
+       if (!device) {
+               reset_device_selector();
                return;
+       }
 
-       main_window_.select_device(device);
+       session_.select_device(device);
+}
 
+void MainBar::on_device_changed()
+{
+       update_device_list();
        update_device_config_widgets();
 }
 
+void MainBar::on_capture_state_changed(int state)
+{
+       set_capture_state((pv::Session::capture_state)state);
+}
+
 void MainBar::on_sample_count_changed()
 {
-       commit_sample_count();
+       if (!updating_sample_count_)
+               commit_sample_count();
 }
 
 void MainBar::on_sample_rate_changed()
 {
-       commit_sample_rate();
+       if (!updating_sample_rate_)
+               commit_sample_rate();
 }
 
-void MainBar::on_run_stop()
+void MainBar::on_config_changed()
 {
        commit_sample_count();
-       commit_sample_rate();   
-       main_window_.run_stop();
+       commit_sample_rate();
 }
 
-void MainBar::on_config_changed()
+void MainBar::on_actionNewView_triggered()
 {
-       commit_sample_count();
-       update_sample_count_selector(); 
-       commit_sample_rate();   
-       update_sample_rate_selector();
+       new_view(&session_);
+}
+
+void MainBar::on_actionOpen_triggered()
+{
+       QSettings settings;
+       const QString dir = settings.value(SettingOpenDirectory).toString();
+
+       // Show the dialog
+       const QString file_name = QFileDialog::getOpenFileName(
+               this, tr("Open File"), dir, tr(
+                       "Sigrok Sessions (*.sr);;"
+                       "All Files (*.*)"));
+
+       if (!file_name.isEmpty()) {
+               session_.load_file(file_name);
+
+               const QString abs_path = QFileInfo(file_name).absolutePath();
+               settings.setValue(SettingOpenDirectory, abs_path);
+       }
+}
+
+void MainBar::on_actionSaveAs_triggered()
+{
+       export_file(session_.device_manager().context()->output_formats()["srzip"]);
+}
+
+void MainBar::on_actionSaveSelectionAs_triggered()
+{
+       export_file(session_.device_manager().context()->output_formats()["srzip"], true);
+}
+
+void MainBar::on_actionConnect_triggered()
+{
+       // Stop any currently running capture session
+       session_.stop_capture();
+
+       dialogs::Connect dlg(this, session_.device_manager());
+
+       // If the user selected a device, select it in the device list. Select the
+       // current device otherwise.
+       if (dlg.exec())
+               session_.select_device(dlg.get_selected_device());
+
+       update_device_list();
+}
+
+void MainBar::add_toolbar_widgets()
+{
+       addAction(action_new_view_);
+       addSeparator();
+       addWidget(open_button_);
+       addWidget(save_button_);
+       addSeparator();
+
+       StandardBar::add_toolbar_widgets();
+
+       addWidget(&device_selector_);
+       configure_button_action_ = addWidget(&configure_button_);
+       channels_button_action_ = addWidget(&channels_button_);
+       addWidget(&sample_count_);
+       addWidget(&sample_rate_);
+#ifdef ENABLE_DECODE
+       addSeparator();
+       addWidget(add_decoder_button_);
+#endif
 }
 
 bool MainBar::eventFilter(QObject *watched, QEvent *event)
 {
-       if ((watched == &sample_count_ || watched == &sample_rate_) &&
-               (event->type() == QEvent::ToolTip)) {
-               double sec = (double)sample_count_.value() / sample_rate_.value();
+       if (sample_count_supported_ && (watched == &sample_count_ ||
+                       watched == &sample_rate_) &&
+                       (event->type() == QEvent::ToolTip)) {
+               auto sec = pv::util::Timestamp(sample_count_.value()) / sample_rate_.value();
                QHelpEvent *help_event = static_cast<QHelpEvent*>(event);
 
-               QString str = tr("Total sampling time: %1").arg(pv::util::format_second(sec));
+               QString str = tr("Total sampling time: %1").arg(
+                       pv::util::format_time_si(sec, pv::util::SIPrefix::unspecified, 0, "s", false));
                QToolTip::showText(help_event->globalPos(), str);
 
                return true;