That 'll do me

[shootingstar]

'That'll do me,' Colin says softly once the choir has processed out. 'That was heaven, that was.' His Scottish accent, often barely discernible is pronounced. 'Who wouldn't want to come and hear that? tell me, William, cos I can't understand how anyone in their right mind could not want to hear that.'

(From A Terrible Kindness by Jo Browning Wroe, Part IV Midnight Choir, scene 57)

What does "That'll do me" mean? Does it mean something like "That blows my mind" (blow someone's mind)? Moreover, I wonder why the future is used there.

 

[emsr2d2]

It just means "I'm happy with that".

 

[tedmc]

It's a set phrase. The future tense does not have anything to do with the future in this case, like saying "that will do" (that's enough).