Modernized code in guisan objects, improved GUI layout

external/libguisan/include/guisan/actionevent.hpp

@@ -64,42 +64,41 @@
 
 namespace gcn
 {
-    class Widget;
+	class Widget;
 
-    /**
-     * Represents an action event.
-     *
-     * @author Olof Naessén
-     * @since 0.6.0
-     */
-    class GCN_CORE_DECLSPEC ActionEvent: public Event
-    {
-    public:
+	/**
+	 * Represents an action event.
+	 *
+	 * @author Olof Naessén
+	 * @since 0.6.0
+	 */
+	class GCN_CORE_DECLSPEC ActionEvent : public Event
+	{
+	public:
 
-        /**
-         * Constructor.
-         *
-         * @param source the source widget of the event.
-         * @param id the identifier of the event.
-         */
-        ActionEvent(Widget* source, const std::string& id);
+		/**
+		 * Constructor.
+		 *
+		 * @param source the source widget of the event.
+		 * @param id the identifier of the event.
+		 */
+		ActionEvent(Widget* source, std::string id);
 
-        /**
-         * Destructor.
-         */
-        virtual ~ActionEvent();
+		/**
+		 * Destructor.
+		 */
+		virtual ~ActionEvent();
 
-        /**
-         * Gets the id of the event.
-         *
-         * @return the id of the event.
-         */
-        const std::string& getId() const;
+		/**
+		 * Gets the id of the event.
+		 *
+		 * @return the id of the event.
+		 */
+		[[nodiscard]] const std::string& getId() const;
 
-    protected:
-        std::string mId;
-    };
+	protected:
+		std::string mId;
+	};
 }
 
 #endif // GCN_ACTIONEVENT_HPP
-