How to format a string to a const width padding with space at the tail

[lovelypp]

I want to format a string to a const width. if the length of string is less than the const value, then padding it with space char at the tail.
For example, with const = 5,
"a" is formatted to "a "
"ab" is formatted to "ab "
"abc" is formatted to "abc "
"abcd" is formatted to "abcd "
"abcde" is formatted to "abcde"

thanks!

[muellerp]

This is the same answer as with leading "0" for numbers. But instead of right you do a left.

[aamer4yu]

Do u want spaces to span the 5-x length ? or a single space if the length is less than 5 ??
If its latter, you can do it as -

if(myString.lengt()<5)
    myString.append(" ");

if(myString.lengt()<5)
    myString.append(" ");

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if u want the former way then -

myString.append(  QString("").fill(MAX-myString.length());

myString.append(  QString("").fill(MAX-myString.length());

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Hope u get the idea,
For numbers, u can use prepend with the same logic

[jpn]

Take a look at QString::arg() parameters fieldWidth and fillChar:

A positive value will produce right-aligned text, whereas a negative value will produce left-aligned text.