fonts - Font Library

Adapted Air780E/Air700E Air780EP Air601 Air101/Air103 Air105 ESP32C3 ESP32S3

Note

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fonts.list(tp)

Returns the list of fonts supported by the firmware

Parameters

Incoming Value Type	Explanation
string	Type, default u8g2, can also be lvgl

Return Value

return value type	explanation
table	Font List

Examples

-- API Added in 2022-07-12
if fonts.list then
    log.info("fonts", "u8g2", json.encode(fonts.list("u8g2")))
end

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fonts.u8g2_get(name, tp)

Get Font

Parameters

Incoming Value Type	Explanation
string	Font name, for example opposansm8_chinese unifont_t_symbols
string	Type, default u8g2, can also be lvgl

Return Value

return value type	explanation
userdata	If the font is stored, return the font pointer, otherwise return nil

Examples

oppo_8 = fonts.get("opposansm8_chinese", "u8g2")
if oppo_8 then
    u8g2.SetFont(oppo_8)
else
    log.warn("fonts", "no such font opposansm8_chinese")
end
-- If you use a cloud-compiled custom font library, use it as follows
oppo_8 = fonts.get("oppo_bold_8", "u8g2") -- oppo_bold_8 It is the font name of the cloud compilation interface.
if oppo_8 then
    u8g2.SetFont(oppo_8)
else
    log.warn("fonts", "no such font opposansm8_chinese")
end

---

fonts.u8g2_load(path, path)

Load fonts from file

Parameters

Incoming Value Type	Explanation
string	Font path, such /luadb/abc.bin
string	Type, which is also supported by the default u8g2.lvgl

Return Value

return value type	explanation
userdata	If the font is stored, return the font pointer, otherwise return nil

Examples

-- API Added in 2022-07-11
-- Reminder: If the file is located under/luadb, it does not need to occupy memory
-- if the file is in another path, such as tf/sd card or spi flash, it will be automatically loaded into the memory, consuming the memory space of lua vm
-- After loading, please refer to it appropriately without loading the same font file repeatedly.
oppo12 = fonts.load("/luadb/oppo12.bin")
if oppo12 then
    u8g2.SetFont(oppo12)
else
    log.warn("fonts", "no such font file oppo12.bin")
end

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