Save/restore view states and signal settings

[pulseview.git] / pv / view / view.cpp

diff --git a/pv/view/view.cpp b/pv/view/view.cpp
index 3f832474cebdf9415df879dc3592a7de27a25f7d..c69e75caec10594ba3122aa31a8344a2e5dd5b3a 100644 (file)
--- a/pv/view/view.cpp
+++ b/pv/view/view.cpp
@@ -28,10 +28,14 @@
 #include <cassert>
 #include <climits>
 #include <cmath>
+#include <iostream>
 #include <iterator>
 #include <mutex>
 #include <unordered_set>
 
+#include <boost/archive/text_iarchive.hpp>
+#include <boost/archive/text_oarchive.hpp>
+#include <boost/serialization/serialization.hpp>
 #include <boost/thread/locks.hpp>
 
 #include <QApplication>
@@ -245,6 +249,45 @@ const Viewport* View::viewport() const
        return viewport_;
 }
 
+void View::save_settings(QSettings &settings) const
+{
+       settings.setValue("scale", scale_);
+
+       std::stringstream ss;
+       boost::archive::text_oarchive oa(ss);
+       oa << boost::serialization::make_nvp("offset", offset_);
+       settings.setValue("offset", QString::fromStdString(ss.str()));
+
+       for (shared_ptr<view::Signal> signal : signals_) {
+               settings.beginGroup(signal->base()->internal_name());
+               signal->save_settings(settings);
+               settings.endGroup();
+       }
+}
+
+void View::restore_settings(QSettings &settings)
+{
+       if (settings.contains("scale"))
+               set_scale(settings.value("scale").toDouble());
+
+       if (settings.contains("offset")) {
+               util::Timestamp offset;
+               std::stringstream ss;
+               ss << settings.value("offset").toString().toStdString();
+
+               boost::archive::text_iarchive ia(ss);
+               ia >> boost::serialization::make_nvp("offset", offset);
+
+               set_offset(offset);
+       }
+
+       for (shared_ptr<view::Signal> signal : signals_) {
+               settings.beginGroup(signal->base()->internal_name());
+               signal->restore_settings(settings);
+               settings.endGroup();
+       }
+}
+
 vector< shared_ptr<TimeItem> > View::time_items() const
 {
        const vector<shared_ptr<Flag>> f(flags());