Using icon fonts (webfonts)?

[Oon-Ee Ng]

I'd like to use https://design.google.com/icons/ (Google's material
design icons) in Kivy, but haven't been able to figure out how to
actually get them to show.

https://github.com/google/material-design-icons/tree/master/iconfont
has the font files itself, including the ttf Kivy needs. Opening that
ttf in fontforge shows nothing, but based on what I read in this link
- http://www.axure.com/c/forum/tips-tricks-examples/15335-googles-material-design-icon-font-widget-library-v7-icon-fonts.html
- that's because of the way google has designed those fonts.

So I do a standard Button, set font_name, and then start trying
various values for text, but I can never get anything to show. Shown
below is my attempt at getting the 3D rotation icon (
https://design.google.com/icons/#ic_3d_rotation )

Button:
font_name: 'MaterialIcons-Regular.ttf'
text: u'\xE84D'

Any advise?

[Oon-Ee Ng]

Also, based on further reading all the characters I want to use are in
the Private Use Area, not sure if that's relevant.

[Brent Picasso]

Hi,

Try specifying your unicode character this way:
 text: u'\uf013'
Also, make sure you are referencing the font file relative to your project root as well.

We're using the fontawesome fonts in a similar way, so it should definitely work.

-Brent

[Oon-Ee Ng]

You're a champ, sir. What's the 'u' at the start of the string mean
anyway (not the u before the apostrophe, that's to indicate unicode
strings since I'm in python2)?

To be clear, here's what works:-
Button:
font_name: 'MaterialIcons-Regular.ttf'
text: u'\uE84D'

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[Brent Picasso]

It's the special incantation needed to specify a unicode char, I believe.  Glad you got it working!

Brent Picasso
Autosport Labs
Technology for Race and Street

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[Oon-Ee Ng]

Right... magic, in other words. Thanks again.