How to use custom fonts

[enelson1001]

I am trying to include a font that I created from https://lvgl.io/tools/fontconverter. I placed this converted tft to c file in my project directory under a directory called custom_fonts

esp-rust-projects/year2023/rust-lvgl-hello
├── build.rs
├── Cargo.lock
├── Cargo.toml
├── custom_fonts
│   └── gotham_bold_80.c
├── logs
│   ├── log_esp_idf_hal_objdump.txt
│   ├── log_lvgl_objdump.txt
│   ├── log.txt
│   └── objdump.txt
├── lvgl-configs
│   ├── lv_conf.h
│   ├── lv_drv_conf.h
│   └── lv_drv_conf old.h
├── rust-toolchain.toml
├── sdkconfig.defaults
├── src
│   └── main.rs

I also include the ENV variable LVGL_FONTS_DIR

export LVGL_FONTS_DIR="/home/ed/esp-rust-projects/year2023/rust-lvgl-hello/custom_fonts"

I try and use the following call to set_text_font but fails because gotham_bold_80 is not found in lvgl_sys. This makes sense because gotham_bold_80 is not included in lvgl_sys/fonts.

style_time.set_text_font(unsafe { Font::new_raw(lvgl_sys::gotham_bold_80) })

and the error

error[E0425]: cannot find value `gotham_bold_80` in crate `lvgl_sys`
   --> src/main.rs:136:71
    |
136 |             style_time.set_text_font(unsafe { Font::new_raw(lvgl_sys::gotham_bold_80) });
    |                                                                       ^^^^^^^^^^^^^^ not found in `lvgl_sys`

So what is the correct way to use my custom font?

[enelson1001]

Solved Needed to create a header file for gotham_bold.c Used noto_sans_numeric_80.h as an example. So now custom_fonts includes gotham_bold_80.h file