]> sigrok.org Git - pulseview.git/blobdiff - pv/mainwindow.cpp
Add menu option for coloured/alternating trace background colors
[pulseview.git] / pv / mainwindow.cpp
index 1f683f19ecd2a8efc2d7f022776568c4aac47194..272dac234374c9f4e69e825100520e81010644d4 100644 (file)
 #include <algorithm>
 #include <iterator>
 
+#include <boost/algorithm/string/join.hpp>
+
 #include <QAction>
 #include <QApplication>
 #include <QButtonGroup>
+#include <QCloseEvent>
 #include <QFileDialog>
 #include <QMessageBox>
 #include <QMenu>
 #include <QVBoxLayout>
 #include <QWidget>
 
-#include "mainwindow.h"
-
-#include "devicemanager.h"
-#include "device/device.h"
-#include "dialogs/about.h"
-#include "dialogs/connect.h"
-#include "dialogs/storeprogress.h"
-#include "toolbars/samplingbar.h"
-#include "view/logicsignal.h"
-#include "view/view.h"
+#include "mainwindow.hpp"
+
+#include "devicemanager.hpp"
+#include "util.hpp"
+#include "data/segment.hpp"
+#include "devices/hardwaredevice.hpp"
+#include "devices/inputfile.hpp"
+#include "devices/sessionfile.hpp"
+#include "dialogs/about.hpp"
+#include "dialogs/connect.hpp"
+#include "dialogs/inputoutputoptions.hpp"
+#include "dialogs/storeprogress.hpp"
+#include "toolbars/mainbar.hpp"
+#include "view/logicsignal.hpp"
+#include "view/view.hpp"
+#include "widgets/exportmenu.hpp"
+#include "widgets/importmenu.hpp"
 #ifdef ENABLE_DECODE
-#include "widgets/decodermenu.h"
+#include "widgets/decodermenu.hpp"
 #endif
+#include "widgets/hidingmenubar.hpp"
 
-/* __STDC_FORMAT_MACROS is required for PRIu64 and friends (in C++). */
-#define __STDC_FORMAT_MACROS
 #include <inttypes.h>
 #include <stdint.h>
 #include <stdarg.h>
 #include <glib.h>
-#include <libsigrok/libsigrok.h>
+#include <libsigrokcxx/libsigrokcxx.hpp>
 
+using std::cerr;
+using std::endl;
 using std::list;
+using std::map;
+using std::pair;
 using std::shared_ptr;
+using std::string;
+using std::vector;
+
+using boost::algorithm::join;
+
+using sigrok::Error;
+using sigrok::OutputFormat;
+using sigrok::InputFormat;
 
 namespace pv {
 
 namespace view {
-class SelectableItem;
+class ViewItem;
 }
 
 const char *MainWindow::SettingOpenDirectory = "MainWindow/OpenDirectory";
 const char *MainWindow::SettingSaveDirectory = "MainWindow/SaveDirectory";
 
 MainWindow::MainWindow(DeviceManager &device_manager,
-       const char *open_file_name,
+       string open_file_name, string open_file_format,
        QWidget *parent) :
        QMainWindow(parent),
-       _device_manager(device_manager),
-       _session(device_manager)
+       device_manager_(device_manager),
+       session_(device_manager),
+       action_open_(new QAction(this)),
+       action_save_as_(new QAction(this)),
+       action_save_selection_as_(new QAction(this)),
+       action_connect_(new QAction(this)),
+       action_quit_(new QAction(this)),
+       action_view_zoom_in_(new QAction(this)),
+       action_view_zoom_out_(new QAction(this)),
+       action_view_zoom_fit_(new QAction(this)),
+       action_view_zoom_one_to_one_(new QAction(this)),
+       action_view_sticky_scrolling_(new QAction(this)),
+       action_view_coloured_bg_(new QAction(this)),
+       action_view_show_cursors_(new QAction(this)),
+       action_about_(new QAction(this))
+#ifdef ENABLE_DECODE
+       , menu_decoders_add_(new pv::widgets::DecoderMenu(this, true))
+#endif
 {
+       qRegisterMetaType<util::Timestamp>("util::Timestamp");
+
        setup_ui();
-       if (open_file_name) {
-               const QString s(QString::fromUtf8(open_file_name));
-               QMetaObject::invokeMethod(this, "load_file",
-                       Qt::QueuedConnection,
-                       Q_ARG(QString, s));
+       restore_ui_settings();
+       if (open_file_name.empty())
+               select_init_device();
+       else
+               load_init_file(open_file_name, open_file_format);
+}
+
+QAction* MainWindow::action_open() const
+{
+       return action_open_;
+}
+
+QAction* MainWindow::action_save_as() const
+{
+       return action_save_as_;
+}
+
+QAction* MainWindow::action_save_selection_as() const
+{
+       return action_save_selection_as_;
+}
+
+QAction* MainWindow::action_connect() const
+{
+       return action_connect_;
+}
+
+QAction* MainWindow::action_quit() const
+{
+       return action_quit_;
+}
+
+QAction* MainWindow::action_view_zoom_in() const
+{
+       return action_view_zoom_in_;
+}
+
+QAction* MainWindow::action_view_zoom_out() const
+{
+       return action_view_zoom_out_;
+}
+
+QAction* MainWindow::action_view_zoom_fit() const
+{
+       return action_view_zoom_fit_;
+}
+
+QAction* MainWindow::action_view_zoom_one_to_one() const
+{
+       return action_view_zoom_one_to_one_;
+}
+
+QAction* MainWindow::action_view_sticky_scrolling() const
+{
+       return action_view_sticky_scrolling_;
+}
+
+QAction* MainWindow::action_view_show_cursors() const
+{
+       return action_view_show_cursors_;
+}
+
+QAction* MainWindow::action_about() const
+{
+       return action_about_;
+}
+
+#ifdef ENABLE_DECODE
+QMenu* MainWindow::menu_decoder_add() const
+{
+       return menu_decoders_add_;
+}
+#endif
+
+void MainWindow::run_stop()
+{
+       switch (session_.get_capture_state()) {
+       case Session::Stopped:
+               session_.start_capture([&](QString message) {
+                       session_error("Capture failed", message); });
+               break;
+       case Session::AwaitingTrigger:
+       case Session::Running:
+               session_.stop_capture();
+               break;
+       }
+}
+
+void MainWindow::select_device(shared_ptr<devices::Device> device)
+{
+       try {
+               if (device)
+                       session_.set_device(device);
+               else
+                       session_.set_default_device();
+       } catch (const QString &e) {
+               QMessageBox msg(this);
+               msg.setText(e);
+               msg.setInformativeText(tr("Failed to Select Device"));
+               msg.setStandardButtons(QMessageBox::Ok);
+               msg.setIcon(QMessageBox::Warning);
+               msg.exec();
+       }
+}
+
+void MainWindow::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();
+
+       std::pair<uint64_t, uint64_t> sample_range;
+
+       // Selection only? Verify that the cursors are active and fetch their values
+       if (selection_only) {
+               if (!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 = view_->cursors()->first()->time();
+               const pv::util::Timestamp& end_time = view_->cursors()->second()->time();
+
+               const uint64_t start_sample = start_time.convert_to<double>() * samplerate;
+               const uint64_t end_sample = end_time.convert_to<double>() * samplerate;
+
+               sample_range = std::make_pair(start_sample, end_sample);
+       } else {
+               sample_range = std::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, ", *."))).arg(
+                       tr("All Files"));
+
+       // Show the file dialog
+       const QString file_name = QFileDialog::getSaveFileName(
+               this, tr("Save File"), dir, filter);
+
+       if (file_name.isEmpty())
+               return;
+
+       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();
        }
+
+       StoreProgress *dlg = new StoreProgress(file_name, format, options,
+               sample_range, session_, this);
+       dlg->run();
+}
+
+void MainWindow::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())).arg(
+                       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();
+       }
+
+       load_file(file_name, format, options);
+
+       const QString abs_path = QFileInfo(file_name).absolutePath();
+       settings.setValue(SettingOpenDirectory, abs_path);
 }
 
 void MainWindow::setup_ui()
 {
        setObjectName(QString::fromUtf8("MainWindow"));
 
-       resize(1024, 768);
-
        // Set the window icon
        QIcon icon;
-       icon.addFile(QString::fromUtf8(":/icons/sigrok-logo-notext.png"),
-               QSize(), QIcon::Normal, QIcon::Off);
+       icon.addFile(QString(":/icons/sigrok-logo-notext.svg"));
        setWindowIcon(icon);
 
        // Setup the central widget
-       _central_widget = new QWidget(this);
-       _vertical_layout = new QVBoxLayout(_central_widget);
-       _vertical_layout->setSpacing(6);
-       _vertical_layout->setContentsMargins(0, 0, 0, 0);
-       setCentralWidget(_central_widget);
+       central_widget_ = new QWidget(this);
+       vertical_layout_ = new QVBoxLayout(central_widget_);
+       vertical_layout_->setSpacing(6);
+       vertical_layout_->setContentsMargins(0, 0, 0, 0);
+       setCentralWidget(central_widget_);
 
-       _view = new pv::view::View(_session, this);
+       view_ = new pv::view::View(session_, this);
 
-       _vertical_layout->addWidget(_view);
+       vertical_layout_->addWidget(view_);
 
        // Setup the menu bar
-       QMenuBar *const menu_bar = new QMenuBar(this);
-       menu_bar->setGeometry(QRect(0, 0, 400, 25));
+       pv::widgets::HidingMenuBar *const menu_bar =
+               new pv::widgets::HidingMenuBar(this);
 
        // File Menu
        QMenu *const menu_file = new QMenu;
        menu_file->setTitle(tr("&File"));
 
-       QAction *const action_open = new QAction(this);
-       action_open->setText(tr("&Open..."));
-       action_open->setIcon(QIcon::fromTheme("document-open",
+       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));
-       action_open->setObjectName(QString::fromUtf8("actionOpen"));
-       menu_file->addAction(action_open);
+       action_open_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_O));
+       action_open_->setObjectName(QString::fromUtf8("actionOpen"));
+       menu_file->addAction(action_open_);
+
+       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));
+       action_save_as_->setObjectName(QString::fromUtf8("actionSaveAs"));
+       menu_file->addAction(action_save_as_);
 
-       QAction *const action_save_as = new QAction(this);
-       action_save_as->setText(tr("&Save As..."));
-       action_save_as->setIcon(QIcon::fromTheme("document-save-as",
+       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_as->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_S));
-       action_save_as->setObjectName(QString::fromUtf8("actionSaveAs"));
-       menu_file->addAction(action_save_as);
+       action_save_selection_as_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_R));
+       action_save_selection_as_->setObjectName(QString::fromUtf8("actionSaveSelectionAs"));
+       menu_file->addAction(action_save_selection_as_);
+
+       menu_file->addSeparator();
+
+       widgets::ExportMenu *menu_file_export = new widgets::ExportMenu(this,
+               device_manager_.context());
+       menu_file_export->setTitle(tr("&Export"));
+       connect(menu_file_export,
+               SIGNAL(format_selected(std::shared_ptr<sigrok::OutputFormat>)),
+               this, SLOT(export_file(std::shared_ptr<sigrok::OutputFormat>)));
+       menu_file->addAction(menu_file_export->menuAction());
+
+       widgets::ImportMenu *menu_file_import = new widgets::ImportMenu(this,
+               device_manager_.context());
+       menu_file_import->setTitle(tr("&Import"));
+       connect(menu_file_import,
+               SIGNAL(format_selected(std::shared_ptr<sigrok::InputFormat>)),
+               this, SLOT(import_file(std::shared_ptr<sigrok::InputFormat>)));
+       menu_file->addAction(menu_file_import->menuAction());
 
        menu_file->addSeparator();
 
-       QAction *const action_connect = new QAction(this);
-       action_connect->setText(tr("&Connect to Device..."));
-       action_connect->setObjectName(QString::fromUtf8("actionConnect"));
-       menu_file->addAction(action_connect);
+       action_connect_->setText(tr("&Connect to Device..."));
+       action_connect_->setObjectName(QString::fromUtf8("actionConnect"));
+       menu_file->addAction(action_connect_);
 
        menu_file->addSeparator();
 
-       QAction *action_quit = new QAction(this);
-       action_quit->setText(tr("&Quit"));
-       action_quit->setIcon(QIcon::fromTheme("application-exit",
+       action_quit_->setText(tr("&Quit"));
+       action_quit_->setIcon(QIcon::fromTheme("application-exit",
                QIcon(":/icons/application-exit.png")));
-       action_quit->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
-       action_quit->setObjectName(QString::fromUtf8("actionQuit"));
-       menu_file->addAction(action_quit);
+       action_quit_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
+       action_quit_->setObjectName(QString::fromUtf8("actionQuit"));
+       menu_file->addAction(action_quit_);
 
        // View Menu
        QMenu *menu_view = new QMenu;
        menu_view->setTitle(tr("&View"));
 
-       QAction *const action_view_zoom_in = new QAction(this);
-       action_view_zoom_in->setText(tr("Zoom &In"));
-       action_view_zoom_in->setIcon(QIcon::fromTheme("zoom-in",
+       action_view_zoom_in_->setText(tr("Zoom &In"));
+       action_view_zoom_in_->setIcon(QIcon::fromTheme("zoom-in",
                QIcon(":/icons/zoom-in.png")));
        // simply using Qt::Key_Plus shows no + in the menu
-       action_view_zoom_in->setShortcut(QKeySequence::ZoomIn);
-       action_view_zoom_in->setObjectName(
+       action_view_zoom_in_->setShortcut(QKeySequence::ZoomIn);
+       action_view_zoom_in_->setObjectName(
                QString::fromUtf8("actionViewZoomIn"));
-       menu_view->addAction(action_view_zoom_in);
+       menu_view->addAction(action_view_zoom_in_);
 
-       QAction *const action_view_zoom_out = new QAction(this);
-       action_view_zoom_out->setText(tr("Zoom &Out"));
-       action_view_zoom_out->setIcon(QIcon::fromTheme("zoom-out",
+       action_view_zoom_out_->setText(tr("Zoom &Out"));
+       action_view_zoom_out_->setIcon(QIcon::fromTheme("zoom-out",
                QIcon(":/icons/zoom-out.png")));
-       action_view_zoom_out->setShortcut(QKeySequence::ZoomOut);
-       action_view_zoom_out->setObjectName(
+       action_view_zoom_out_->setShortcut(QKeySequence::ZoomOut);
+       action_view_zoom_out_->setObjectName(
                QString::fromUtf8("actionViewZoomOut"));
-       menu_view->addAction(action_view_zoom_out);
+       menu_view->addAction(action_view_zoom_out_);
 
-       QAction *const action_view_zoom_fit = new QAction(this);
-       action_view_zoom_fit->setText(tr("Zoom to &Fit"));
-       action_view_zoom_fit->setIcon(QIcon::fromTheme("zoom-fit",
+       action_view_zoom_fit_->setCheckable(true);
+       action_view_zoom_fit_->setText(tr("Zoom to &Fit"));
+       action_view_zoom_fit_->setIcon(QIcon::fromTheme("zoom-fit",
                QIcon(":/icons/zoom-fit.png")));
-       action_view_zoom_fit->setShortcut(QKeySequence(Qt::Key_F));
-       action_view_zoom_fit->setObjectName(
+       action_view_zoom_fit_->setShortcut(QKeySequence(Qt::Key_F));
+       action_view_zoom_fit_->setObjectName(
                QString::fromUtf8("actionViewZoomFit"));
-       menu_view->addAction(action_view_zoom_fit);
+       menu_view->addAction(action_view_zoom_fit_);
 
-       QAction *const action_view_zoom_one_to_one = new QAction(this);
-       action_view_zoom_one_to_one->setText(tr("Zoom to &One-to-One"));
-       action_view_zoom_one_to_one->setIcon(QIcon::fromTheme("zoom-original",
+       action_view_zoom_one_to_one_->setText(tr("Zoom to O&ne-to-One"));
+       action_view_zoom_one_to_one_->setIcon(QIcon::fromTheme("zoom-original",
                QIcon(":/icons/zoom-original.png")));
-       action_view_zoom_one_to_one->setShortcut(QKeySequence(Qt::Key_O));
-       action_view_zoom_one_to_one->setObjectName(
+       action_view_zoom_one_to_one_->setShortcut(QKeySequence(Qt::Key_O));
+       action_view_zoom_one_to_one_->setObjectName(
                QString::fromUtf8("actionViewZoomOneToOne"));
-       menu_view->addAction(action_view_zoom_one_to_one);
+       menu_view->addAction(action_view_zoom_one_to_one_);
 
        menu_view->addSeparator();
 
-       QAction *action_view_show_cursors = new QAction(this);
-       action_view_show_cursors->setCheckable(true);
-       action_view_show_cursors->setChecked(_view->cursors_shown());
-       action_view_show_cursors->setShortcut(QKeySequence(Qt::Key_C));
-       action_view_show_cursors->setObjectName(
+       action_view_sticky_scrolling_->setCheckable(true);
+       action_view_sticky_scrolling_->setChecked(true);
+       action_view_sticky_scrolling_->setShortcut(QKeySequence(Qt::Key_S));
+       action_view_sticky_scrolling_->setObjectName(
+               QString::fromUtf8("actionViewStickyScrolling"));
+       action_view_sticky_scrolling_->setText(tr("&Sticky Scrolling"));
+       menu_view->addAction(action_view_sticky_scrolling_);
+
+       view_->enable_sticky_scrolling(action_view_sticky_scrolling_->isChecked());
+
+       menu_view->addSeparator();
+
+       action_view_coloured_bg_->setCheckable(true);
+       action_view_coloured_bg_->setChecked(true);
+       action_view_coloured_bg_->setShortcut(QKeySequence(Qt::Key_S));
+       action_view_coloured_bg_->setObjectName(
+               QString::fromUtf8("actionViewColouredBg"));
+       action_view_coloured_bg_->setText(tr("Use &coloured backgrounds"));
+       menu_view->addAction(action_view_coloured_bg_);
+
+       menu_view->addSeparator();
+
+       action_view_show_cursors_->setCheckable(true);
+       action_view_show_cursors_->setChecked(view_->cursors_shown());
+       action_view_show_cursors_->setIcon(QIcon::fromTheme("show-cursors",
+               QIcon(":/icons/show-cursors.svg")));
+       action_view_show_cursors_->setShortcut(QKeySequence(Qt::Key_C));
+       action_view_show_cursors_->setObjectName(
                QString::fromUtf8("actionViewShowCursors"));
-       action_view_show_cursors->setText(tr("Show &Cursors"));
-       menu_view->addAction(action_view_show_cursors);
+       action_view_show_cursors_->setText(tr("Show &Cursors"));
+       menu_view->addAction(action_view_show_cursors_);
 
        // Decoders Menu
 #ifdef ENABLE_DECODE
        QMenu *const menu_decoders = new QMenu;
        menu_decoders->setTitle(tr("&Decoders"));
 
-       pv::widgets::DecoderMenu *const menu_decoders_add =
-               new pv::widgets::DecoderMenu(menu_decoders, true);
-       menu_decoders_add->setTitle(tr("&Add"));
-       connect(menu_decoders_add, SIGNAL(decoder_selected(srd_decoder*)),
+       menu_decoders_add_->setTitle(tr("&Add"));
+       connect(menu_decoders_add_, SIGNAL(decoder_selected(srd_decoder*)),
                this, SLOT(add_decoder(srd_decoder*)));
 
-       menu_decoders->addMenu(menu_decoders_add);
+       menu_decoders->addMenu(menu_decoders_add_);
 #endif
 
        // Help Menu
        QMenu *const menu_help = new QMenu;
        menu_help->setTitle(tr("&Help"));
 
-       QAction *const action_about = new QAction(this);
-       action_about->setObjectName(QString::fromUtf8("actionAbout"));
-       action_about->setText(tr("&About..."));
-       menu_help->addAction(action_about);
+       action_about_->setObjectName(QString::fromUtf8("actionAbout"));
+       action_about_->setText(tr("&About..."));
+       menu_help->addAction(action_about_);
 
        menu_bar->addAction(menu_file->menuAction());
        menu_bar->addAction(menu_view->menuAction());
@@ -238,34 +524,140 @@ void MainWindow::setup_ui()
        setMenuBar(menu_bar);
        QMetaObject::connectSlotsByName(this);
 
+       // Also add all actions to the main window for always-enabled hotkeys
+       for (QAction* action : menu_bar->actions())
+               this->addAction(action);
+
        // Setup the toolbar
-       QToolBar *const toolbar = new QToolBar(tr("Main Toolbar"), this);
-       toolbar->addAction(action_open);
-       toolbar->addAction(action_save_as);
-       toolbar->addSeparator();
-       toolbar->addAction(action_view_zoom_in);
-       toolbar->addAction(action_view_zoom_out);
-       toolbar->addAction(action_view_zoom_fit);
-       toolbar->addAction(action_view_zoom_one_to_one);
-       addToolBar(toolbar);
-
-       // Setup the sampling bar
-       _sampling_bar = new toolbars::SamplingBar(_session, this);
+       main_bar_ = new toolbars::MainBar(session_, *this);
 
        // Populate the device list and select the initially selected device
        update_device_list();
 
-       connect(_sampling_bar, SIGNAL(run_stop()), this,
-               SLOT(run_stop()));
-       addToolBar(_sampling_bar);
+       addToolBar(main_bar_);
 
        // Set the title
        setWindowTitle(tr("PulseView"));
 
-       // Setup _session events
-       connect(&_session, SIGNAL(capture_state_changed(int)), this,
+       // Setup session_ events
+       connect(&session_, SIGNAL(capture_state_changed(int)), this,
                SLOT(capture_state_changed(int)));
+       connect(&session_, SIGNAL(device_selected()), this,
+               SLOT(device_selected()));
+       connect(&session_, SIGNAL(trigger_event(util::Timestamp)), view_,
+               SLOT(trigger_event(util::Timestamp)));
+
+       // Setup view_ events
+       connect(view_, SIGNAL(sticky_scrolling_changed(bool)), this,
+               SLOT(sticky_scrolling_changed(bool)));
+       connect(view_, SIGNAL(always_zoom_to_fit_changed(bool)), this,
+               SLOT(always_zoom_to_fit_changed(bool)));
+
+}
+
+void MainWindow::select_init_device()
+{
+       QSettings settings;
+       map<string, string> dev_info;
+       list<string> key_list;
+
+       // Re-select last used device if possible.
+       settings.beginGroup("Device");
+       key_list.push_back("vendor");
+       key_list.push_back("model");
+       key_list.push_back("version");
+       key_list.push_back("serial_num");
+       key_list.push_back("connection_id");
+
+       for (string key : key_list) {
+               const QString k = QString::fromStdString(key);
+               if (!settings.contains(k))
+                       continue;
+
+               const string value = settings.value(k).toString().toStdString();
+               if (!value.empty())
+                       dev_info.insert(std::make_pair(key, value));
+       }
 
+       const shared_ptr<devices::HardwareDevice> device =
+               device_manager_.find_device_from_info(dev_info);
+       select_device(device);
+       update_device_list();
+
+       settings.endGroup();
+}
+
+void MainWindow::load_init_file(const std::string &file_name,
+       const std::string &format)
+{
+       shared_ptr<InputFormat> input_format;
+
+       if (!format.empty()) {
+               const map<string, shared_ptr<InputFormat> > formats =
+                       device_manager_.context()->input_formats();
+               const auto iter = find_if(formats.begin(), formats.end(),
+                       [&](const pair<string, shared_ptr<InputFormat> > f) {
+                               return f.first == format; });
+               if (iter == formats.end()) {
+                       cerr << "Unexpected input format: " << format << endl;
+                       return;
+               }
+
+               input_format = (*iter).second;
+       }
+
+       load_file(QString::fromStdString(file_name), input_format);
+}
+
+
+void MainWindow::save_ui_settings()
+{
+       QSettings settings;
+
+       map<string, string> dev_info;
+       list<string> key_list;
+
+       settings.beginGroup("MainWindow");
+       settings.setValue("state", saveState());
+       settings.setValue("geometry", saveGeometry());
+       settings.endGroup();
+
+       if (session_.device()) {
+               settings.beginGroup("Device");
+               key_list.push_back("vendor");
+               key_list.push_back("model");
+               key_list.push_back("version");
+               key_list.push_back("serial_num");
+               key_list.push_back("connection_id");
+
+               dev_info = device_manager_.get_device_info(
+                       session_.device());
+
+               for (string key : key_list) {
+                       if (dev_info.count(key))
+                               settings.setValue(QString::fromUtf8(key.c_str()),
+                                               QString::fromUtf8(dev_info.at(key).c_str()));
+                       else
+                               settings.remove(QString::fromUtf8(key.c_str()));
+               }
+
+               settings.endGroup();
+       }
+}
+
+void MainWindow::restore_ui_settings()
+{
+       QSettings settings;
+
+       settings.beginGroup("MainWindow");
+
+       if (settings.contains("geometry")) {
+               restoreGeometry(settings.value("geometry").toByteArray());
+               restoreState(settings.value("state").toByteArray());
+       } else
+               resize(1000, 720);
+
+       settings.endGroup();
 }
 
 void MainWindow::session_error(
@@ -278,42 +670,56 @@ void MainWindow::session_error(
 
 void MainWindow::update_device_list()
 {
-       assert(_sampling_bar);
-
-       shared_ptr<pv::device::DevInst> selected_device = _session.get_device();
-       list< shared_ptr<device::DevInst> > devices;
-       std::copy(_device_manager.devices().begin(),
-               _device_manager.devices().end(), std::back_inserter(devices));
-
-       if (std::find(devices.begin(), devices.end(), selected_device) ==
-               devices.end())
-               devices.push_back(selected_device);
-       assert(selected_device);
-
-       _sampling_bar->set_device_list(devices, selected_device);
+       main_bar_->update_device_list();
 }
 
-void MainWindow::load_file(QString file_name)
+void MainWindow::load_file(QString file_name,
+       std::shared_ptr<sigrok::InputFormat> format,
+       const std::map<std::string, Glib::VariantBase> &options)
 {
        const QString errorMessage(
                QString("Failed to load file %1").arg(file_name));
-       const QString infoMessage;
 
        try {
-               _session.set_file(file_name.toStdString());
-       } catch(QString e) {
-               show_session_error(tr("Failed to load ") + file_name, e);
-               _session.set_default_device();
+               if (format)
+                       session_.set_device(shared_ptr<devices::Device>(
+                               new devices::InputFile(
+                                       device_manager_.context(),
+                                       file_name.toStdString(),
+                                       format, options)));
+               else
+                       session_.set_device(shared_ptr<devices::Device>(
+                               new devices::SessionFile(
+                                       device_manager_.context(),
+                                       file_name.toStdString())));
+       } catch (Error e) {
+               show_session_error(tr("Failed to load ") + file_name, e.what());
+               session_.set_default_device();
                update_device_list();
                return;
        }
 
        update_device_list();
 
-       _session.start_capture([&, errorMessage, infoMessage](QString) {
+       session_.start_capture([&, errorMessage](QString infoMessage) {
                session_error(errorMessage, infoMessage); });
 }
 
+void MainWindow::closeEvent(QCloseEvent *event)
+{
+       save_ui_settings();
+       event->accept();
+}
+
+void MainWindow::keyReleaseEvent(QKeyEvent *event)
+{
+       if (event->key() == Qt::Key_Alt) {
+               menuBar()->setHidden(!menuBar()->isHidden());
+               menuBar()->setFocus();
+       }
+       QMainWindow::keyReleaseEvent(event);
+}
+
 void MainWindow::show_session_error(
        const QString text, const QString info_text)
 {
@@ -346,39 +752,25 @@ void MainWindow::on_actionOpen_triggered()
 
 void MainWindow::on_actionSaveAs_triggered()
 {
-       using pv::dialogs::StoreProgress;
-
-       // Stop any currently running capture session
-       _session.stop_capture();
-
-       QSettings settings;
-       const QString dir = settings.value(SettingSaveDirectory).toString();
-
-       // Show the dialog
-       const QString file_name = QFileDialog::getSaveFileName(
-               this, tr("Save File"), dir, tr("Sigrok Sessions (*.sr)"));
-
-       if (file_name.isEmpty())
-               return;
-
-       const QString abs_path = QFileInfo(file_name).absolutePath();
-       settings.setValue(SettingSaveDirectory, abs_path);
+       export_file(device_manager_.context()->output_formats()["srzip"]);
+}
 
-       StoreProgress *dlg = new StoreProgress(file_name, _session, this);
-       dlg->run();
+void MainWindow::on_actionSaveSelectionAs_triggered()
+{
+       export_file(device_manager_.context()->output_formats()["srzip"], true);
 }
 
 void MainWindow::on_actionConnect_triggered()
 {
        // Stop any currently running capture session
-       _session.stop_capture();
+       session_.stop_capture();
 
-       dialogs::Connect dlg(this, _device_manager);
+       dialogs::Connect dlg(this, device_manager_);
 
        // If the user selected a device, select it in the device list. Select the
        // current device otherwise.
        if (dlg.exec())
-               _session.set_device(dlg.get_selected_device());
+               select_device(dlg.get_selected_device());
 
        update_device_list();
 }
@@ -390,69 +782,84 @@ void MainWindow::on_actionQuit_triggered()
 
 void MainWindow::on_actionViewZoomIn_triggered()
 {
-       _view->zoom(1);
+       view_->zoom(1);
 }
 
 void MainWindow::on_actionViewZoomOut_triggered()
 {
-       _view->zoom(-1);
+       view_->zoom(-1);
 }
 
 void MainWindow::on_actionViewZoomFit_triggered()
 {
-       _view->zoom_fit();
+       view_->zoom_fit(action_view_zoom_fit_->isChecked());
 }
 
 void MainWindow::on_actionViewZoomOneToOne_triggered()
 {
-       _view->zoom_one_to_one();
+       view_->zoom_one_to_one();
+}
+
+void MainWindow::on_actionViewStickyScrolling_triggered()
+{
+       view_->enable_sticky_scrolling(action_view_sticky_scrolling_->isChecked());
+}
+
+void MainWindow::on_actionViewColouredBg_triggered()
+{
 }
 
 void MainWindow::on_actionViewShowCursors_triggered()
 {
-       assert(_view);
+       assert(view_);
 
-       const bool show = !_view->cursors_shown();
-       if(show)
-               _view->centre_cursors();
+       const bool show = !view_->cursors_shown();
+       if (show)
+               view_->centre_cursors();
 
-       _view->show_cursors(show);
+       view_->show_cursors(show);
 }
 
 void MainWindow::on_actionAbout_triggered()
 {
-       dialogs::About dlg(this);
+       dialogs::About dlg(device_manager_.context(), this);
        dlg.exec();
 }
 
+void MainWindow::sticky_scrolling_changed(bool state)
+{
+       action_view_sticky_scrolling_->setChecked(state);
+}
+
+void MainWindow::always_zoom_to_fit_changed(bool state)
+{
+       action_view_zoom_fit_->setChecked(state);
+}
+
 void MainWindow::add_decoder(srd_decoder *decoder)
 {
 #ifdef ENABLE_DECODE
        assert(decoder);
-       _session.add_decoder(decoder);
+       session_.add_decoder(decoder);
 #else
        (void)decoder;
 #endif
 }
 
-void MainWindow::run_stop()
+void MainWindow::capture_state_changed(int state)
 {
-       switch(_session.get_capture_state()) {
-       case SigSession::Stopped:
-               _session.start_capture([&](QString message) {
-                       session_error("Capture failed", message); });
-               break;
-
-       case SigSession::AwaitingTrigger:
-       case SigSession::Running:
-               _session.stop_capture();
-               break;
-       }
+       main_bar_->set_capture_state((pv::Session::capture_state)state);
 }
 
-void MainWindow::capture_state_changed(int state)
+void MainWindow::device_selected()
 {
-       _sampling_bar->set_capture_state((pv::SigSession::capture_state)state);
+       // Set the title to include the device/file name
+       const shared_ptr<devices::Device> device = session_.device();
+       if (!device)
+               return;
+
+       const string display_name = device->display_name(device_manager_);
+       setWindowTitle(tr("%1 - PulseView").arg(display_name.c_str()));
 }
 
 } // namespace pv