#include "globalsettings.hpp"
+using std::function;
+using std::map;
+using std::multimap;
+
namespace pv {
const QString GlobalSettings::Key_View_AlwaysZoomToFit = "View_AlwaysZoomToFit";
const QString GlobalSettings::Key_View_ColouredBG = "View_ColouredBG";
+const QString GlobalSettings::Key_View_StickyScrolling = "View_StickyScrolling";
+const QString GlobalSettings::Key_View_ShowSamplingPoints = "View_ShowSamplingPoints";
+const QString GlobalSettings::Key_View_ShowAnalogMinorGrid = "View_ShowAnalogMinorGrid";
+const QString GlobalSettings::Key_Dec_InitialStateConfigurable = "Dec_InitialStateConfigurable";
-std::multimap< QString, std::function<void(QVariant)> > GlobalSettings::callbacks_;
+multimap< QString, function<void(QVariant)> > GlobalSettings::callbacks_;
+bool GlobalSettings::tracking_ = false;
+map<QString, QVariant> GlobalSettings::tracked_changes_;
GlobalSettings::GlobalSettings() :
QSettings()
beginGroup("Settings");
}
+void GlobalSettings::set_defaults_where_needed()
+{
+ // Enable coloured trace backgrounds by default
+ if (!contains(Key_View_ColouredBG))
+ setValue(Key_View_ColouredBG, true);
+}
+
void GlobalSettings::register_change_handler(const QString key,
- std::function<void(QVariant)> cb)
+ function<void(QVariant)> cb)
{
callbacks_.emplace(key, cb);
}
void GlobalSettings::setValue(const QString &key, const QVariant &value)
{
+ // Save previous value if we're tracking changes,
+ // not altering an already-existing saved setting
+ if (tracking_)
+ tracked_changes_.emplace(key, QSettings::value(key));
+
QSettings::setValue(key, value);
// Call all registered callbacks for this key
it->second(value);
}
+void GlobalSettings::start_tracking()
+{
+ tracking_ = true;
+ tracked_changes_.clear();
+}
+
+void GlobalSettings::stop_tracking()
+{
+ tracking_ = false;
+ tracked_changes_.clear();
+}
+
+void GlobalSettings::undo_tracked_changes()
+{
+ tracking_ = false;
+
+ for (auto entry : tracked_changes_)
+ setValue(entry.first, entry.second);
+
+ tracked_changes_.clear();
+}
} // namespace pv