Introduce "save selection range as..." feature

[pulseview.git] / pv / mainwindow.cpp

diff --git a/pv/mainwindow.cpp b/pv/mainwindow.cpp
index 8b32046a6e8d3db5aa3ccdfce967bf7022fc3a25..195c460a1de90f3aea20b3fb4af9745a6a34103b 100644 (file)
--- a/pv/mainwindow.cpp
+++ b/pv/mainwindow.cpp
@@ -45,6 +45,8 @@
 #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"
@@ -100,6 +102,7 @@ MainWindow::MainWindow(DeviceManager &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)),
@@ -259,8 +262,10 @@ void MainWindow::export_file(shared_ptr<OutputFormat> format)
                options = dlg.options();
        }
 
+       const std::pair<uint64_t, uint64_t> sample_range = std::make_pair(0, 0);
+
        StoreProgress *dlg = new StoreProgress(file_name, format, options,
-               session_, this);
+               sample_range, session_, this);
        dlg->run();
 }
 
@@ -347,6 +352,13 @@ void MainWindow::setup_ui()
        action_save_as_->setObjectName(QString::fromUtf8("actionSaveAs"));
        menu_file->addAction(action_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_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,
@@ -649,6 +661,87 @@ void MainWindow::load_file(QString file_name,
                session_error(errorMessage, infoMessage); });
 }
 
+void MainWindow::save_selection_to_file()
+{
+       // Stop any currently running capture session
+       session_.stop_capture();
+
+       // Get sample rate
+       double samplerate = 0.0;
+
+       for (const shared_ptr<pv::data::SignalData> d : session_.get_data()) {
+               assert(d);
+               const vector< shared_ptr<pv::data::Segment> > segments =
+                       d->segments();
+               for (const shared_ptr<pv::data::Segment> &s : segments)
+                       samplerate = std::max(samplerate, s->samplerate());
+       }
+
+       if (samplerate == 0.0)
+               samplerate = 1;
+
+       // Verify that the cursors are active and fetch their values
+       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 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;
+
+       const std::pair<uint64_t, uint64_t> sample_range =
+                       std::make_pair(start_sample, end_sample);
+
+       // Ask for output file name
+       QSettings settings;
+       const QString dir = settings.value(SettingSaveDirectory).toString();
+
+       shared_ptr<OutputFormat> format =
+                       device_manager_.context()->output_formats()["srzip"];
+
+       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"));
+
+       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();
+       }
+
+       // Save
+       pv::dialogs::StoreProgress *dlg = new pv::dialogs::StoreProgress(file_name,
+               format, options, sample_range, session_, this);
+       dlg->run();
+}
+
 void MainWindow::closeEvent(QCloseEvent *event)
 {
        save_ui_settings();
@@ -699,6 +792,11 @@ void MainWindow::on_actionSaveAs_triggered()
        export_file(device_manager_.context()->output_formats()["srzip"]);
 }
 
+void MainWindow::on_actionSaveSelectionAs_triggered()
+{
+       save_selection_to_file();
+}
+
 void MainWindow::on_actionConnect_triggered()
 {
        // Stop any currently running capture session