Martin Bauer
ec9d617ad8
Slint cannot read woff2, which is the only form web/public/fonts/ carries, and Raspbian has no fonts-nunito to install instead - so the device was going to fall back to DejaVu Sans, which is not what any of this was drawn in. The upstream variable TTF (SIL OFL, weights 200-1000) is small enough to vendor and covers every weight the design uses, including the 800/900 the headings lean on. SLINT_DEFAULT_FONT takes one file and makes it the primary font. shell.nix now points at this copy rather than at nixpkgs' own, so development and the device render from the identical file, and the binary falls back to finding it beside the executable when neither the dev shell nor the device's launcher has set the variable. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
63 lines
2.0 KiB
Nix
63 lines
2.0 KiB
Nix
# Dev shell for the Slint front-end.
|
|
#
|
|
# NixOS has no rustup-installed toolchain here, and Slint's renderers link against
|
|
# system GL/X11/Wayland libraries that a plain `cargo build` cannot find on its own -
|
|
# hence LD_LIBRARY_PATH below rather than just a list of buildInputs.
|
|
{ pkgs ? import <nixpkgs> { } }:
|
|
|
|
let
|
|
# Everything the winit backend dlopen()s at runtime. Missing one of these shows up
|
|
# as a panic inside winit, not as a link error, so they are easy to misdiagnose.
|
|
runtimeLibs = with pkgs; [
|
|
libGL
|
|
libxkbcommon
|
|
wayland
|
|
xorg.libX11
|
|
xorg.libXcursor
|
|
xorg.libXi
|
|
xorg.libXrandr
|
|
fontconfig
|
|
freetype
|
|
];
|
|
in
|
|
pkgs.mkShell {
|
|
nativeBuildInputs = with pkgs; [
|
|
cargo
|
|
rustc
|
|
rustfmt
|
|
clippy
|
|
pkg-config
|
|
# Only needed when building with --features skia: rust-skia compiles its own
|
|
# bindings shim and wants a C++ toolchain plus python for the GN build.
|
|
clang
|
|
python3
|
|
];
|
|
|
|
# Nunito is the face the design is drawn in. `SLINT_DEFAULT_FONT` takes one file and
|
|
# makes it the primary font. This points at the copy vendored in `fonts/` rather than
|
|
# at nixpkgs, so development and the device render from the identical file.
|
|
SLINT_DEFAULT_FONT = toString ./fonts/Nunito.ttf;
|
|
|
|
buildInputs = runtimeLibs ++ (with pkgs; [
|
|
fontconfig
|
|
# libinput/libdrm/libseat are the linuxkms (kiosk) backend's dependencies. They
|
|
# cost nothing to have present on a desktop build.
|
|
libinput
|
|
libdrm
|
|
seatd
|
|
udev
|
|
]);
|
|
|
|
LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath runtimeLibs;
|
|
|
|
# rust-skia downloads a prebuilt libskia rather than building it, when it can.
|
|
SKIA_BINARIES_URL_TEMPLATE = null;
|
|
|
|
shellHook = ''
|
|
echo "musicmouse slint-frontend — cargo $(cargo --version | cut -d' ' -f2)"
|
|
echo " cargo run # windowed, femtovg"
|
|
echo " cargo run --features skia # windowed, skia (what the Pi uses)"
|
|
echo " cargo build --features kiosk # linuxkms + skia, for the device"
|
|
'';
|
|
}
|