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extern crate finder;
extern crate freetype;
extern crate log;
extern crate regex;
mod font;
pub mod types;
mod utils;
use finder::{Finder, IntoIter};
use font::Font;
use freetype::{error::Error, Face, Library};
use log::{info, warn};
use types::FontEntry;
pub struct Fonts {
lib: Library,
finder: IntoIter,
}
impl Fonts {
pub fn new(dirs: &Vec<String>) -> Result<Self, Error> {
match Library::init() {
Err(err) => return Err(err),
Ok(lib) => {
info!("Freetype2 library initialized successful");
return Ok(Fonts {
lib,
finder: Finder::new(&dirs.join(":"))
.filter(&utils::filter_files)
.into_iter(),
});
}
};
}
pub fn to_json(self) -> String {
let mut json = "{".to_owned();
for font in self {
let string = font.to_json();
json.push_str(&string[1..string.len() - 1]);
json.push_str(",");
}
json = json[0..json.len() - 1].to_string();
json.push_str("}");
json
}
}
impl Iterator for Fonts {
type Item = Font;
fn next(&mut self) -> Option<Font> {
match self.finder.next() {
None => return None,
Some(file) => {
let font_path = String::from(file.path().to_str().unwrap());
let mut entry = Font {
path: "".to_owned(),
entries: vec![],
};
match self.lib.new_face(&font_path, 0) {
Err(err) => {
warn!("Cannot open font {}, ERROR: {}", &font_path, err);
}
Ok(font) => {
let font_index = font.num_faces();
if font_index == 1 {
let mut values: Vec<FontEntry> = Vec::new();
values.push(make_fonts(&font));
entry.path = font_path;
entry.entries = values;
} else if font_index > 1 {
let mut values: Vec<FontEntry> = Vec::new();
for index in 1..font_index {
values.push(make_fonts(
&self.lib.new_face(&font_path, isize::from(index)).unwrap(),
));
}
entry.path = font_path;
entry.entries = values;
}
}
};
Some(entry)
}
}
}
}
fn make_fonts(face: &Face) -> FontEntry {
let mut is_italic = false;
let flags = face.style_flags().bits();
if flags == 1 || flags == 3 {
is_italic = true;
}
FontEntry {
postscript: String::from(
face
.postscript_name()
.expect("BUG: Cannot get postscript_name"),
),
family: String::from(face.family_name().expect("BUG: Cannot get family_name")),
id: String::from(face.family_name().expect("BUG: Cannot get family_name")),
style: String::from(face.style_name().expect("BUG: Cannot get style_name")),
weight: 400,
stretch: 5,
italic: is_italic,
}
}