[dolphin] [Bug 455176] New: Additionally show actual size for sparse files

[soredake]

https://bugs.kde.org/show_bug.cgi?id=455176

            Bug ID: 455176
           Summary: Additionally show actual size for sparse files
           Product: dolphin
           Version: 22.04.2
          Platform: Fedora RPMs
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: panels: information
          Assignee: dolphin-bugs-null at kde.org
          Reporter: ndrzj1gbo at relay.firefox.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

Created attachment 149636
  --> https://bugs.kde.org/attachment.cgi?id=149636&action=edit
how windows deals with displaying sparse file size

SUMMARY
***
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***
It would be nice if dolphin can show 'actual size' for sparse files, like in
"windows explorer" on windows.

STEPS TO REPRODUCE
1. Create sparse file.
2. Check it's size.
3. Oh no, big file!

OBSERVED RESULT
Dolphin can't show sparse file actual size.

EXPECTED RESULT
Dolphin will show sparse file actual size.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Fedora KDE 36
(available in About System)
KDE Plasma Version: 5.24.5
KDE Frameworks Version: 5.93.0
Qt Version: 5.15.3

ADDITIONAL INFORMATION

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