Add serial_num/connection_id handling and save/restore last device

[pulseview.git] / pv / mainwindow.cpp

diff --git a/pv/mainwindow.cpp b/pv/mainwindow.cpp
index 50cab695a8a87d850f4f2fda04f6b8f233ed8ee8..d4c5f1f79ed27111c17bcbe9bee6a97902d4a7e8 100644 (file)
--- a/pv/mainwindow.cpp
+++ b/pv/mainwindow.cpp
@@ -30,6 +30,7 @@
 #include <QAction>
 #include <QApplication>
 #include <QButtonGroup>
+#include <QCloseEvent>
 #include <QFileDialog>
 #include <QMessageBox>
 #include <QMenu>
@@ -62,7 +63,9 @@
 #include <libsigrok/libsigrok.h>
 
 using std::list;
+using std::map;
 using std::shared_ptr;
+using std::string;
 
 namespace pv {
 
@@ -81,6 +84,7 @@ MainWindow::MainWindow(DeviceManager &device_manager,
        _session(device_manager)
 {
        setup_ui();
+       restore_ui_settings();
        if (open_file_name) {
                const QString s(QString::fromUtf8(open_file_name));
                QMetaObject::invokeMethod(this, "load_file",
@@ -93,8 +97,6 @@ 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"),
@@ -240,6 +242,7 @@ void MainWindow::setup_ui()
 
        // Setup the toolbar
        QToolBar *const toolbar = new QToolBar(tr("Main Toolbar"), this);
+       toolbar->setObjectName(QString::fromUtf8("MainToolbar"));
        toolbar->addAction(action_open);
        toolbar->addAction(action_save_as);
        toolbar->addSeparator();
@@ -265,7 +268,89 @@ void MainWindow::setup_ui()
        // Setup _session events
        connect(&_session, SIGNAL(capture_state_changed(int)), this,
                SLOT(capture_state_changed(int)));
+}
+
+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.get_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 = _session.get_device()->get_device_info();
+
+               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;
 
+       shared_ptr<pv::device::DevInst> device;
+
+       map<string, string> dev_info;
+       list<string> key_list;
+       string value;
+
+       settings.beginGroup("MainWindow");
+
+       if (settings.contains("geometry")) {
+               restoreGeometry(settings.value("geometry").toByteArray());
+               restoreState(settings.value("state").toByteArray());
+       } else
+               resize(1000, 720);
+
+       settings.endGroup();
+
+       // 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) {
+               if (!settings.contains(QString::fromUtf8(key.c_str())))
+                       continue;
+
+               value = settings.value(QString::fromUtf8(key.c_str())).toString().toStdString();
+
+               if (value.size() > 0)
+                       dev_info.insert(std::make_pair(key, value));
+       }
+
+       device = _device_manager.find_device_from_info(dev_info);
+
+       if (device) {
+               _session.set_device(device);
+               update_device_list();
+       }
+
+       settings.endGroup();
 }
 
 void MainWindow::session_error(
@@ -297,6 +382,12 @@ void MainWindow::update_device_list()
        _sampling_bar->set_device_list(devices, selected_device);
 }
 
+void MainWindow::closeEvent(QCloseEvent *event)
+{
+       save_ui_settings();
+       event->accept();
+}
+
 void MainWindow::load_file(QString file_name)
 {
        const QString errorMessage(