Add function for listing font names on linux
This function isn't exactly useful, but it's working ffi with the fontconfig library. Woo! Next step will be returning some objects with more information (like font path so we can start rendering glyphs!).
This commit is contained in:
Joe Wilm
parent
621776cd94
commit
2a7dc1deb8
|
|
@ -0,0 +1,10 @@
|
|||
language: rust
|
||||
sudo: false
|
||||
|
||||
rust:
|
||||
# There's currently a cargo bug on stable which prevents libfontconfig_sys
|
||||
# from building properly.
|
||||
- nightly
|
||||
|
||||
script:
|
||||
- cargo test
|
||||
|
|
@ -0,0 +1,68 @@
|
|||
[root]
|
||||
name = "alacritty"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"freetype 0.1.0 (git+https://github.com/servo/rust-freetype.git)",
|
||||
"libc 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"servo-fontconfig 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "expat-sys"
|
||||
version = "2.1.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"make-cmd 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"pkg-config 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "freetype"
|
||||
version = "0.1.0"
|
||||
source = "git+https://github.com/servo/rust-freetype.git#d564ff90a3c69d987f5c015d7ec034cfaee21aff"
|
||||
dependencies = [
|
||||
"libc 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "libc"
|
||||
version = "0.2.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "make-cmd"
|
||||
version = "0.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "pkg-config"
|
||||
version = "0.3.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "servo-fontconfig"
|
||||
version = "0.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"libc 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"servo-fontconfig-sys 2.11.3 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "servo-fontconfig-sys"
|
||||
version = "2.11.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"expat-sys 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"pkg-config 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"servo-freetype-sys 2.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "servo-freetype-sys"
|
||||
version = "2.4.11"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"pkg-config 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
|
|
@ -4,3 +4,6 @@ version = "0.1.0"
|
|||
authors = ["Joe Wilm <joe@jwilm.com>"]
|
||||
|
||||
[dependencies]
|
||||
servo-fontconfig = "0.2"
|
||||
freetype = { git = "https://github.com/servo/rust-freetype.git" }
|
||||
libc = "*"
|
||||
|
|
|
|||
|
|
@ -0,0 +1,57 @@
|
|||
use std::ffi::CStr;
|
||||
use std::ptr;
|
||||
use std::str;
|
||||
|
||||
use libc::{c_char, c_int};
|
||||
|
||||
use fontconfig::fontconfig::{FcConfigGetCurrent, FcConfigGetFonts, FcSetSystem};
|
||||
use fontconfig::fontconfig::{FcPatternGetString};
|
||||
use fontconfig::fontconfig::{FcResultMatch};
|
||||
use fontconfig::fontconfig::{FcChar8};
|
||||
|
||||
pub fn list_font_names() -> Vec<String> {
|
||||
let mut fonts = Vec::new();
|
||||
unsafe {
|
||||
// https://www.freedesktop.org/software/fontconfig/fontconfig-devel/fcconfiggetcurrent.html
|
||||
let config = FcConfigGetCurrent(); // *mut FcConfig
|
||||
|
||||
// https://www.freedesktop.org/software/fontconfig/fontconfig-devel/fcconfiggetfonts.html
|
||||
let font_set = FcConfigGetFonts(config, FcSetSystem); // *mut FcFontSet
|
||||
|
||||
let nfont = (*font_set).nfont as isize;
|
||||
for i in 0..nfont {
|
||||
let font = (*font_set).fonts.offset(i); // *mut FcPattern
|
||||
let id = 0 as c_int;
|
||||
let mut fullname: *mut FcChar8 = ptr::null_mut();
|
||||
|
||||
// The second parameter here (fullname) is from the "FONT PROPERTIES" table:
|
||||
// https://www.freedesktop.org/software/fontconfig/fontconfig-devel/x19.html
|
||||
let result = FcPatternGetString(*font,
|
||||
b"fullname\0".as_ptr() as *mut c_char,
|
||||
id,
|
||||
&mut fullname);
|
||||
if result != FcResultMatch {
|
||||
continue;
|
||||
}
|
||||
|
||||
let s = str::from_utf8(CStr::from_ptr(fullname as *const c_char).to_bytes())
|
||||
.unwrap().to_owned();
|
||||
fonts.push(s);
|
||||
}
|
||||
}
|
||||
|
||||
fonts
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::list_font_names;
|
||||
|
||||
#[test]
|
||||
fn list_fonts() {
|
||||
let fonts = list_font_names();
|
||||
assert!(!fonts.is_empty());
|
||||
|
||||
println!("fonts: {:?}", fonts);
|
||||
}
|
||||
}
|
||||
|
|
@ -1,3 +1,9 @@
|
|||
extern crate fontconfig;
|
||||
extern crate freetype;
|
||||
extern crate libc;
|
||||
|
||||
mod list_fonts;
|
||||
|
||||
fn main() {
|
||||
println!("Hello, world!");
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue