A general-purpose 5x7 Unicode font.
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README update after changing fxconv specifications in fxSDK 2.3
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uf5x7 Improvement suggested by @Lephenixnoir 1 year ago
README.md README update after changing fxconv specifications in fxSDK 2.3 3 weeks ago
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uf5x7.png Improvement suggested by @Lephenixnoir 1 year ago


uf5x7: A 5x7 Unicode font

uf5x7 is a 5x7 font that suports most of the common Unicode blocks. It can be used in C.Basic with the custom font mechanism or in add-ins if the font manager supports it.

Preview image: "Mézalors Δ=2 ⇒ ∀x∈S, x⊆Δ"

The font is under CC0, there are no conditions for using it. A link back here would be appreciated though!

Related topic on Planète Casio: Police 5x7 Unicode pour add-ins et C.Basic

Currently the following blocks have been drawn:

  • U+0020 .. U+007F - ASCII (128 chars)
  • U+00A0 .. U+00FF - Latin-1 Supplement (96 chars)
  • U+0100 .. U+017F - Latin Extended-A (128 chars)
  • U+0370 .. U+03FF - Greek (144 chars)
  • U+0400 .. U+047F - Cyrillic (128 chars)
  • U+16A0 .. U+16FF - Runic (96 chars)
  • U+2010 .. U+205F - General punctuation (80 chars)
  • U+2070 .. U+209F - Subscripts and superscripts (48 chars)
  • U+20A0 .. U+20BF - Currency symbols (32 chars - thanks @Alice!)
  • U+2160 .. U+217F - Roman numerals (32 chars)
  • U+2190 .. U+21FF - Arrows (112 chars)
  • U+2200 .. U+22FF - Mathematical operators (256 chars)
  • U+2440 .. U+244F - Optical character recognition (16 chars - thanks @Alice!)
  • U+25A0 .. U+25FF - Geometric shapes (96 chars)
  • U+2800 .. U+28FF - Braille patterns (256 chars - thanks @Alice!)
  • U+3000 .. U+303F - CJK Punctuation (48 chars - thanks @Alice!)

The following blocks are being considered for future support:

  • Finish Cyrillic
  • IPA extensions and Phonetic extensions
  • Hiragana and Katakana

Other characters supported in FONTCHARACTER (incomplete list):

  • U+2139 - Imaginary number
  • U+231F - Fraction symbol

Constructing a full image of the font

The gen.py script can be used to generate uf5x7.png, the full image of the font. You will need Python 3 and Pillow (PIL might be okay).

% ./gen.py uf5x7/*

It will read each block's position from its file name (which should be on the form U\+[0-9A-Fa-f]{4}.png) and guess the block end from the image dimensions. For image files with a different name, it will output an anonymous block.

The file gen-chars.png provides some character templates for it to render the full image.

Using in C.Basic

TODO - Check out the documentation (egadget2.web.fc2.com) for extended font support.

Using in gint

To convert the font with fxconv, pass the name of a folder containing block images instead of a simple image and set charset to unicode. Note that in this setting, area is ignored and the same grid parameters are applied to all block images.

% fxconv -f uf5x7/ name:uf5x7 charset:unicode grid.size:5x7 grid.padding:1

When using the fxSDK, add the uf5x7 folder to your list of metadata files and set the type as font.

uf5x7: # Note that this is a folder
  type: font
  name: uf5x7
  charset: unicode
  grid.size: 5x7
  grid.padding: 1

To use the font, configure it with dfont(), then call dtext() as usual. Make sure the string is encoded as UTF-8. The u8 prefix can be used if your source file is not encoded as UTF-8.

dtext(5, 5, "Mézalors Δ=2 ⇒ ∀x∈S, x⊆Δ", BLACK, WHITE);