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Add documentation to the server

UI/ui_led.hpp

@@ -4,15 +4,52 @@
 
 #define UI_LED_TYPE std::string("ui_led")
 
+/**
+ * @brief Class representing a UI led
+ *
+ */
 class UI_led : public UI_item
 {
     Q_OBJECT
   public:
+    /**
+     * @brief Construct a UI led object
+     *
+     * @param parent The parent QObject
+     */
     UI_led(QObject *parent = nullptr);
+    /**
+     * @brief Construct a UI led object
+     *
+     * @param text The text to display
+     * @param fg_color The foreground color
+     * @param bg_color The background color
+     * @param parent The parent QObject
+     */
     UI_led(std::string text, Color fg_color, Color bg_color, QObject *parent = nullptr);
 
+    /**
+     * @brief Set the state of the LED
+     *
+     * @param state The state to set
+     * @param on The color when the LED is on
+     * @param off The color when the LED is off
+     * @return true If the state was changed
+     * @return false If the state was not changed
+     */
     bool set_led(bool state, Color on, Color off);
 
+    /**
+     * @brief Deserialize the LED from JSON
+     *
+     * @param j The JSON object
+     */
     void from_json(const json &j) override;
+    /**
+     * @brief Serialize the LED to JSON
+     *
+     * @param id The id of the LED
+     * @return json The JSON representation of the LED
+     */
     json to_json(size_t id) const override;
 };