I think of something like:
Code: Select all
[-] Directory 1
[+] Directory 2
File 1
File 2
File 3
[-] Directory 3 (Subdir of directory 2)
Code: Select all
[-] Directory 1
[+] Directory 2
[+] Subdir 1
File 1
File 2
[-] Subdir 2
File 1
File 2
File 3
[-] Directory 3
By the way I prefer the first "flat" "tree".
I also would suggest file-icons for this dialog.