Ubuntu – Customizing tray/taskbar date display in Ubuntu with GNOME 3

QML

The KDE plasmoids are using qml scripts, http://en.wikipedia.org/wiki/QML .

The plasmoid scripts are at: /usr/share/plasma/plasmoids/... ie the digital clock scripts are at: /usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/... You could edit those but any update will overwrite your changes.

The KDE TechBase has tutorial - Plasma5 QML2 GettingStarted: https://techbase.kde.org/Development/Tutorials/Plasma5/QML2/GettingStarted .

The Date QML Type: http://doc.qt.io/qt-5/qml-qtqml-date.html

-> Date:

-> Time:

My panel clock

Writing a quick and dirty clock.

Making:

• /tmp/mypanelclock/metadata.desktop: http://pastebin.com/PZe812VR
• /tmp/mypanelclock/contents/ui/main.qml: http://pastebin.com/WqwD49N5
• /tmp/mypanelclock/contents/ui/CompactRepresentation.qml: http://pastebin.com/9Ky7Fgj2

Opening a terminal window to the tmp directory and running command:

plasmapkg2 -i mypanelclock

The command:

:~$ plasmapkg2 --help
Usage: plasmapkg2 [options]
Plasma Package Manager

Options:
  -v, --version             Displays version information.
  -h, --help                Displays this help.
  --hash <path>             Generate a SHA1 hash for the package at <path>
  -g, --global              For install or remove, operates on packages
                            installed for all users.
  -t, --type <type>         The type of package, e.g. theme, wallpaper,
                            plasmoid, dataengine, runner, layout-template, etc.
  -i, --install <path>      Install the package at <path>
  -s, --show <name>         Show information of package <name>
  -u, --upgrade <path>      Upgrade the package at <path>
  -l, --list                List installed packages
  --list-types              List all known package types that can be installed
  -r, --remove <name>       Remove the package named <name>
  -p, --packageroot <path>  Absolute path to the package root. If not supplied,
                            then the standard data directories for this KDE
                            session will be searched instead.

Now there are available:

Adding the clock to the panel:

More of the KDE clocks: https://www.kubuntuforums.net/showthread.php?61798-Clocks

More of the qml & plasma 5: https://www.kubuntuforums.net/showthread.php?67726-Quick-KDE-plasma-qml-widgets

There are some GNOME shell extensions which may help you achieve this goal.

1. Window List
   It displays a list of open windows at the bottom of the screen. You'll be able to minimise and restore windows by clicking on the window names.
2. Window List Mod
   It's a modification of the Window List extension. It displays a list of open windows at the top of the screen and offers a few more customisations.