Fix #831 by saving/restoring PD options

[pulseview.git] / pv / globalsettings.cpp

diff --git a/pv/globalsettings.cpp b/pv/globalsettings.cpp
index 915eaebcc9bee7df37981770f158117b60ffcd42..6b13df16e397fc44ab6dd2473b92bba1f316c58f 100644 (file)
--- a/pv/globalsettings.cpp
+++ b/pv/globalsettings.cpp
@@ -19,6 +19,9 @@
 
 #include "globalsettings.hpp"
 
 
 #include "globalsettings.hpp"
 

+#include <QByteArray>
+#include <QString>
+

 using std::function;
 using std::map;
 using std::multimap;
 using std::function;
 using std::map;
 using std::multimap;


@@ -102,4 +105,37 @@ void GlobalSettings::undo_tracked_changes()
        tracked_changes_.clear();
 }
 
        tracked_changes_.clear();
 }
 

+void GlobalSettings::store_gvariant(QSettings &settings, GVariant *v)
+{
+       const GVariantType *var_type = g_variant_get_type(v);
+       char *var_type_str = g_variant_type_dup_string(var_type);
+
+       QByteArray var_data = QByteArray((const char*)g_variant_get_data(v),
+               g_variant_get_size(v));
+
+       settings.setValue("value", var_data);
+       settings.setValue("type", var_type_str);
+
+       g_free(var_type_str);
+}
+
+GVariant* GlobalSettings::restore_gvariant(QSettings &settings)
+{
+       QString raw_type = settings.value("type").toString();
+       GVariantType *var_type = g_variant_type_new(raw_type.toUtf8());
+
+       QByteArray data = settings.value("value").toByteArray();
+
+       gpointer var_data = g_memdup((gconstpointer)data.constData(),
+               (guint)data.size());
+
+       GVariant *value = g_variant_new_from_data(var_type, var_data,
+               data.size(), false, g_free, var_data);
+
+       g_variant_type_free(var_type);
+
+       return value;
+}
+
+

 } // namespace pv
 } // namespace pv