docs(exp): explained the file

qt/snigdhaosassistant.h

@@ -16,16 +16,24 @@
 //class for managing network operations
 #include <QtNetwork/QNetworkAccessManager>
 
+/*
+* defines a namespace for the user interface of the application, typically generated by Qt Designer. 
+* QT_BEGIN_NAMESPACE and QT_END_NAMESPACE are macros used to enclose the Qt namespace.
+*/
 QT_BEGIN_NAMESPACE
 namespace Ui {
 class SnigdhaOSAssistant;
 }
 QT_END_NAMESPACE
 
+//declares a class named SnigdhaOSAssistant, which inherits from QMainWindow. 
+//the Q_OBJECT macro is used to enable the Qt's meta-object system for this class, allowing features like signals and slots.
 class SnigdhaOSAssistant : public QMainWindow
 {
     Q_OBJECT
 
+//declares an enumeration type named State inside the SnigdhaOSAssistant class,
+//containing various states that the application can be in.
 public:
     enum class State {
         QUIT,
@@ -42,18 +50,27 @@ class SnigdhaOSAssistant : public QMainWindow
         SUCCESS
     };
 
+    //constructor and destructor declarations for the SnigdhaOSAssistant class. 
+    //the constructor takes a QWidget pointer as the parent widget and a QString representing the initial state of the application. 
+    //the destructor has no parameters.
     SnigdhaOSAssistant(QWidget* parent = nullptr, QString state = "WELCOME");
     ~SnigdhaOSAssistant();
 
+//declare private slots, which are functions that can be connected to signals from widgets
 private slots:
     void on_textWidget_buttonBox_clicked(QAbstractButton* button);
     void on_selectWidget_buttonBox_clicked(QAbstractButton* button);
 
-
+//These are private member variables of the SnigdhaOSAssistant class. 
+//ui is a pointer to the user interface object generated by Qt Designer. 
+//executable_modify_date is a QDateTime object representing the modification date of the executable. 
+//currentState is an instance of the State enumeration representing the current state of the application.
 private:
     Ui::SnigdhaOSAssistant *ui;
     QDateTime executable_modify_date;
     State currentState;
+    //private member functions of the SnigdhaOSAssistant class. 
+    //they perform various tasks such as making internet requests, updating the application, populating select widgets, updating the application state, and relaunching the application.
     void doInternetUpRequest();
     void doUpdate();
     void doApply();