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PoC find font with glyph

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This commit is contained in:
Joe Wilm 2017-02-25 15:48:00 -08:00 committed by Joe Wilm
parent f10394e003
commit 28700ed3dc
2 changed files with 61 additions and 2 deletions
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1
font/Cargo.lock generated
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@ -10,6 +10,7 @@ dependencies = [
"ffi-util 0.1.0",
"freetype-rs 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
"servo-fontconfig 0.2.0 (git+https://github.com/jwilm/rust-fontconfig)",
]

62
font/src/ft/list_fonts.rs
View file

@ -29,7 +29,7 @@ pub mod fc {
use self::ffi::{FcPatternGetInteger, FcPatternAddInteger};
use self::ffi::{FcObjectSetCreate, FcObjectSetAdd};
use self::ffi::{FcResultMatch, FcResultNoMatch, FcFontSetList};
use self::ffi::{FcChar8, FcConfig, FcPattern, FcFontSet, FcObjectSet, FcCharSet};
use self::ffi::{FcChar8, FcConfig, FcPattern, FcFontSet, FcObjectSet};
use self::ffi::{FcFontSetDestroy, FcPatternDestroy, FcObjectSetDestroy, FcConfigDestroy};
use self::ffi::{FcFontMatch, FcFontList, FcFontSort, FcConfigSubstitute, FcDefaultSubstitute};
use self::ffi::{FcMatchFont, FcMatchPattern, FcMatchScan, FC_SLANT_ITALIC, FC_SLANT_ROMAN};
@ -37,6 +37,8 @@ pub mod fc {
use self::ffi::{FC_WEIGHT_THIN, FC_WEIGHT_EXTRALIGHT, FC_WEIGHT_LIGHT};
use self::ffi::{FC_WEIGHT_BOOK, FC_WEIGHT_REGULAR, FC_WEIGHT_MEDIUM, FC_WEIGHT_SEMIBOLD};
use self::ffi::{FC_WEIGHT_BOLD, FC_WEIGHT_EXTRABOLD, FC_WEIGHT_BLACK, FC_WEIGHT_EXTRABLACK};
use self::ffi::{FcCharSet, FcCharSetDestroy, FcPatternAddCharSet, FcCharSetAddChar};
use self::ffi::{FcCharSetCreate};
/// Iterator over a font set
pub struct FontSetIter<'a> {
@ -49,6 +51,7 @@ pub mod fc {
ffi_type!(Config, ConfigRef, FcConfig, FcConfigDestroy);
ffi_type!(ObjectSet, ObjectSetRef, FcObjectSet, FcObjectSetDestroy);
ffi_type!(FontSet, FontSetRef, FcFontSet, FcFontSetDestroy);
ffi_type!(CharSet, CharSetRef, FcCharSet, FcCharSetDestroy);
impl ObjectSet {
#[allow(dead_code)]
@ -291,6 +294,23 @@ pub mod fc {
Extrablack = FC_WEIGHT_EXTRABLACK as isize,
}
impl CharSet {
pub fn new() -> CharSet {
CharSet(unsafe { FcCharSetCreate() })
}
}
impl CharSetRef {
pub fn add(&mut self, glyph: char) -> bool {
unsafe {
FcCharSetAddChar(
self.as_ptr(),
glyph as _
) == 1
}
}
}
impl PatternRef {
/// Add a string value to the pattern
///
@ -353,6 +373,21 @@ pub mod fc {
}
}
/// Add charset to the pattern
///
/// The lifetimes here ensure that the charset is alive at least as long
/// as the pattern.
pub fn add_charset<'b, 'a: 'b>(&'b self, charset: &'a CharSetRef) -> bool {
unsafe {
FcPatternAddCharSet(
self.as_ptr(),
b"charset\0".as_ptr() as *mut c_char,
charset.as_ptr()
) == 1
}
}
pub fn file(&self, index: isize) -> Option<PathBuf> {
unsafe {
self.get_string(b"file\0", index)
@ -520,7 +555,30 @@ mod tests {
break;
}
}
info!("");
println!("");
}
}
#[test]
fn font_sort_with_glyph() {
let mut charset = fc::CharSet::new();
charset.add('💖');
let mut pattern = fc::Pattern::new();
pattern.add_charset(&charset);
let config = fc::Config::get_current();
let fonts = fc::font_sort(config, &mut pattern).expect("font_sort");
for font in fonts.into_iter().take(10) {
print!("family={:?}", font.family(0));
for i in 0.. {
if let Some(style) = font.style(i) {
print!(", style={:?}", style);
} else {
break;
}
}
println!("");
}
}
}