C++ How to align multiple output? - c++

Question

I have a problem to solve where I need to show the output in this format:
But the problem I am facing is that for Purchase ID: 2, which has two book title, the second book title (Midnight Library) is shown in second line and does not align properly, how can I align it under the Book Title?
Code:
void viewPurchase() //View all purchase transactions
{
system("cls");
struct purchaseInfo* viewPurchase;
viewPurchase = head;
int choice;
cout << "*************" << endl;
cout << "VIEW PURCHASE" << endl;
cout << "*************" << endl;
cout << "1. View Purchase" << endl;
cout << " " << endl;
cout << "0. BACK TO MENU" << endl;
cout << "\nEnter your choice: ";
cin >> choice;
switch (choice)
{
case 1:
{
if (viewPurchase == NULL) {
cout << "No record in the list\n";
cout << "\nPress ENTER to Back to Menu...\n" << endl;
cin.clear();
cin.ignore(numeric_limits<streamsize>::max(), '\n');
cin.get();
}
while (viewPurchase != NULL) {
cout << "============================================================================\n";
cout << "Purchase ID \tBook Title \t\t Total Item \tTotal Price\n";
cout << "============================================================================\n";
while (viewPurchase != NULL) {
cout << left << setw(16) << viewPurchase->purchaseID;
for (int loop = 0; loop < viewPurchase->size; loop++) {
cout << left << setw(30) << viewPurchase->book[loop].bookTitle;
if (loop == 0) {
cout << left << setw(18) << viewPurchase->totalItem;
cout << left << setw(16) << viewPurchase->totalPrice;
}
cout << endl;
}
viewPurchase = viewPurchase->next;
}
}
break;
}
case 0:
break;
default:
cout << "\nInvalid selection. Press ENTER to continue...\n" << endl;
cin.clear();
cin.ignore(numeric_limits<streamsize>::max(), '\n');
cin.get();
break;
}
};
Anything need to change for this code?
cout << left << setw(30) << viewPurchase->book[loop].bookTitle;

Answer 1

but the second book title (Midnight Library) run away and does not align properly, how can I align it under the book Title?
Insert an empty string, using setw matching the width of the first column before inserting the book title.