Add ResolveVariables()

Settings will be set to fixed values based on the values of the
variables used.

lib/variables/variable-number.hpp

@@ -22,6 +22,7 @@ public:
 	Type GetType() const { return _type; }
 	bool IsFixedType() const { return _type == Type::FIXED_VALUE; }
 	std::weak_ptr<Variable> GetVariable() const { return _variable; }
+	void ResolveVariables();
 
 private:
 	Type _type = Type::FIXED_VALUE;

lib/variables/variable-number.tpp

@@ -93,3 +93,9 @@ template<typename T> NumberVariable<T>::operator T() const
 {
 	return GetValue();
 }
+
+template<typename T> void NumberVariable<T>::ResolveVariables()
+{
+	_value = GetValue();
+	_type = Type::FIXED_VALUE;
+}

lib/variables/variable-string.cpp

@@ -50,6 +50,12 @@ void StringVariable::Save(obs_data_t *obj, const char *name) const
 	obs_data_set_string(obj, name, _value.c_str());
 }
 
+void StringVariable::ResolveVariables()
+{
+	Resolve();
+	_value = _resolvedValue;
+}
+
 const char *StringVariable::c_str()
 {
 	Resolve();

lib/variables/variable-string.hpp

@@ -27,6 +27,8 @@ public:
 	EXPORT void Load(obs_data_t *obj, const char *name);
 	EXPORT void Save(obs_data_t *obj, const char *name) const;
 
+	EXPORT void ResolveVariables();
+
 private:
 	void Resolve() const;