options/{bundle,connector,value}: allow setting to default values

This is complicated by Qt's rejection of template classes.

Also move some stuff to slots where makes sense.

1 files changed, 6 insertions, 0 deletions

diff --git a/options/value.hpp b/options/value.hpp
index 253da0c4..2021bd3e 100644
--- a/options/value.hpp
+++ b/options/value.hpp
@@ -90,6 +90,7 @@ public slots:
 
     virtual void reload() = 0;
     virtual void bundle_value_changed() const = 0;
+    virtual void set_to_default() = 0;
 };
 
 namespace detail {
@@ -171,6 +172,11 @@ public:
         return def;
     }
 
+    void set_to_default() override
+    {
+        *this = def;
+    }
+
     operator t() const { return get(); }
 
     void reload() override