UI

Add virtual event methods to UI_item and override them in derived class

src/UI/UI_button.hpp

@@ -13,7 +13,7 @@ class UI_button : public UI_item
         void from_json(const json& j) override;
         json to_json() const override;
 
-        void click() const;
+        void click() const override;
     private:
         std::function<void(std::string)> p_on_click = nullptr;
 };

src/UI/UI_combobox.hpp

@@ -14,7 +14,7 @@ class UI_combobox : public UI_x_boxes
         UI_combobox(const json& j);
 
         void set_selected(size_t selected);
-        void set_selected(std::string selected);
+        void set_selected(std::string selected) override;
         size_t selected() const;
         std::string selected_text() const;
     

src/UI/UI_item.hpp

@@ -34,6 +34,10 @@ class UI_item {
 
     virtual json to_json() const;
 
+    virtual void click() const {};
+    virtual void set_selected(std::string selected) {UNUSED(selected);};
+    virtual void set_value(double value) {UNUSED(value);};
+
   protected:
     std::string p_id;
     std::string p_type;

src/UI/UI_slider.hpp

@@ -9,7 +9,7 @@ class UI_slider : public UI_item
         UI_slider(std::string id, std::string text, Color fg_color, Color bg_color, double min, double max, double value, std::function<void(std::string, double)> on_change = nullptr);
         UI_slider(const json& j);
 
-        void set_value(double value);
+        void set_value(double value) override;
         double value() const;
 
         void from_json(const json& j) override;