manageddisplaywidget: show colorspaces as well as DVL

app/widget/manageddisplay/manageddisplay.h

@@ -52,6 +52,11 @@ public:
    */
   const ColorTransform& GetColorTransform() const;
 
+  /**
+   * @brief Get menu that can be used to select the colorspace
+   */
+  Menu* GetColorSpaceMenu(QMenu* parent, bool auto_connect = true);
+
   /**
    * @brief Get menu that can be used to select the display transform
    */
@@ -169,6 +174,11 @@ private slots:
    */
   void MenuLookSelect(QAction* action);
 
+  /**
+   * @brief If GetColorSpaceMenu() is called with `auto_connect` set to true, it will be connected to this
+   */
+  void MenuColorspaceSelect(QAction* action);
+
 };
 
 OLIVE_NAMESPACE_EXIT