refs #314, fromQVariant / location of toQVariant

* renamed fromQVariant to convertFromQVariant, the "from" methods imply the object is changed (fromJson, fromString ..)
* implemented fromQVariant - changing the object by QVariant
* moved toQVariant into PQ template
* free function setFromQVariant

src/blackmisc/setkeyboardhotkeylist.h

@@ -30,23 +30,27 @@ namespace BlackMisc
             //! Construct from a base class object.
             CSettingKeyboardHotkeyList(const CSequence<CSettingKeyboardHotkey> &baseClass);
 
-            //! \copydoc CValueObject::toQVariant
-            virtual QVariant toQVariant() const override { return QVariant::fromValue(*this); }
-
             //! Contains given hotkey function?
             bool containsFunction(const CHotkeyFunction &function) const;
 
             //! Key for given function
             BlackMisc::Settings::CSettingKeyboardHotkey keyForFunction(const CHotkeyFunction &function) const;
 
-            //! Register metadata
-            static void registerMetadata();
-
             /*!
              * Fill the list with hotkeys
              * \param reset true, list will be be reset, otherwise values will not be overridde
              */
             void initAsHotkeyList(bool reset = true);
+
+            //! \copydoc CValueObject::toQVariant
+            virtual QVariant toQVariant() const override { return QVariant::fromValue(*this); }
+
+            //! \copydoc CValueObject::fromQVariant
+            virtual void fromQVariant(const QVariant &variant) override { BlackMisc::setFromQVariant(this, variant); }
+
+            //! Register metadata
+            static void registerMetadata();
+
         };
 
     } //namespace