custom font to render clock applet

[dnk]

use custom font to render clock applet.
configuration is available via gsettings/dconf-editor

example how it looks with vertical panel (panel width: 44, font:8 "DejaVu Sans", format: '24-hour'):

can be helpful for #1090 and #157

[zhuyaliang]

The code format is good, the compilation runs well, and no memory leak is found

[lukefromdc]

I got this to build and run fine, but on killing the panel (so it could restart) and running my older version dconf-editor 3.18 I was not able to find any references to the clock schema (a relocatable one?) so wondering if this may depend on
#1355
to actually work. Will apply that on top of this change and see what happens

[lukefromdc]

The changes here did not show up in dconf-editor after applying
#1355
rebuilding, restarting the pane, replacing my normal dconf-editor 3.18 with 3.36 (for relocatable schema support) and then opening dconf-editor.

Due to the relocatable schema issue, this might be more useful if custom formats can be applied from the clock preferences dialog as well

[L-U-T-i]

Why do we need "use-custom-font" setting?

If "custom-font" is left default ("Use default value" ON), custom font is not in use. If we turn it OFF and enter custom font, we use that one instead.

I find this setting redundant, and even potentially misleading (as one is on top of the window, and another one at the bottom - so one can easily miss the bottom "use-custom-font" setting, believing custom font is chosen already by setting "custom-font").

I support the idea of custom font through the clock preferences dialog (possibly with a selectable list of fonts installed instead of text window).

[raveit65]

Why removing the padding for vertical panels?
I can't recall but there was a reason why we use the padding, many years ago.
For me it looks nicer with a padding. Using 2px seems OK for me.
Any way, i don't want to block it.
But this needs to be moved in a single commit.
Otherwise you will never find the change in git history, when user will blame us about.

[raveit65]

And why adding the 2 blanks before padding-......?

[raveit65]

last time that i ask........

[raveit65]

It works on my box but having 2 gsettings keys for the same setting seems to be overloaded.
I am sure most people will forget to enable the setting explicit after choosing the font.
Edit:
I don't really block it , as i will never use a different font for myself. Too much options for a desktop :)

[lukefromdc]

What is the status of this?