Gnome-Disk-Utility: UI too big

[Gendre Sebastien]

Hello everybody. I have a proble with Gnome-Disk-Utility: When I select
the system disk (LVM encrypted), the UI become too big. The UI become
too wide for 1024 px width and too high for 768 px height screen.

It's even more annoying than majority of new laptop have a 1366x768
screen. 

I hade created, in May, a bug report:
https://bugzilla.redhat.com/show_bug.cgi?id=596843

I propose a solution for this:

Move the volumes table to the big tree on the left of the UI (like old
UI). Each volumes becomes a node of the tree and have their owner disk
for root node. If you selecte a disk on the tree, you have only options
and informations of this disk and you must to select a volume to have
options and informations of this volume. For don't have a big width
tree, you can hide/show all same level node to their root node.

Exemple:

1/ 

*********************
                    *
(-) Disk-00         *
 +----- Volume-00   *
 +----- Volume-01   *
 +----- Volume-01   *
        .           *
        .           *
        .           *

2/ (when you clic on minus button of the node (disk-00))

**************************
                         *
(+) Disk-00 (3 volumes)  *
         .               *
         .               *
         .               *

With this solution, we have 3 levels:
1/ Computer (local or network).
2/ Phisical controllers and LVM.
3/ Phisical disks and LVM logical group.
4/ Phisical volumes and LVM logical volumes.