diff options
Diffstat (limited to 'src/list_fonts.rs')
| -rw-r--r-- | src/list_fonts.rs | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/src/list_fonts.rs b/src/list_fonts.rs deleted file mode 100644 index f171f57e..00000000 --- a/src/list_fonts.rs +++ /dev/null @@ -1,186 +0,0 @@ -use std::collections::HashMap; -use std::ffi::{CStr, CString}; -use std::fmt; -use std::path::PathBuf; -use std::ptr; -use std::str::from_utf8; - -use libc::{c_char, c_int}; - -use fontconfig::fontconfig::{FcConfigGetCurrent, FcConfigGetFonts, FcSetSystem}; -use fontconfig::fontconfig::{FcPatternGetString, FcPatternCreate, FcPatternAddString}; -use fontconfig::fontconfig::{FcPatternGetInteger}; -use fontconfig::fontconfig::{FcObjectSetCreate, FcObjectSetAdd}; -use fontconfig::fontconfig::{FcResultMatch, FcFontSetList}; -use fontconfig::fontconfig::{FcChar8}; -use fontconfig::fontconfig::{FcFontSetDestroy, FcPatternDestroy, FcObjectSetDestroy}; - -unsafe fn fc_char8_to_string(fc_str: *mut FcChar8) -> String { - from_utf8(CStr::from_ptr(fc_str as *const c_char).to_bytes()).unwrap().to_owned() -} - -fn list_families() -> Vec<String> { - let mut families = 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 family: *mut FcChar8 = ptr::null_mut(); - let mut format: *mut FcChar8 = ptr::null_mut(); - - let result = FcPatternGetString(*font, - b"fontformat\0".as_ptr() as *mut c_char, - id, - &mut format); - - if result != FcResultMatch { - continue; - } - - let format = fc_char8_to_string(format); - - if format != "TrueType" && format != "CFF" { - continue - } - - let mut id = 0; - while FcPatternGetString(*font, b"family\0".as_ptr() as *mut c_char, id, &mut family) == FcResultMatch { - let safe_family = fc_char8_to_string(family); - id += 1; - families.push(safe_family); - } - } - } - - families.sort(); - families.dedup(); - families -} - -#[derive(Debug)] -pub struct Variant { - style: String, - file: PathBuf, - index: isize, -} - -impl Variant { - #[inline] - pub fn path(&self) -> &::std::path::Path { - self.file.as_path() - } - - #[inline] - pub fn index(&self) -> isize { - self.index - } -} - -#[derive(Debug)] -pub struct Family { - name: String, - variants: HashMap<String, Variant>, -} - -impl fmt::Display for Family { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { - try!(write!(f, "{}: ", self.name)); - for (k, _v) in &self.variants { - try!(write!(f, "{}, ", k)); - } - - Ok(()) - } -} - -impl Family { - #[inline] - pub fn variants(&self) -> &HashMap<String, Variant> { - &self.variants - } -} - -static FILE: &'static [u8] = b"file\0"; -static FAMILY: &'static [u8] = b"family\0"; -static INDEX: &'static [u8] = b"index\0"; -static STYLE: &'static [u8] = b"style\0"; - -pub fn get_family_info(family: String) -> Family { - - let mut members = Vec::new(); - - unsafe { - let config = FcConfigGetCurrent(); // *mut FcConfig - let mut font_set = FcConfigGetFonts(config, FcSetSystem); // *mut FcFontSet - - let pattern = FcPatternCreate(); - let family_name = CString::new(&family[..]).unwrap(); - let family_name = family_name.as_ptr(); - - // Add family name to pattern. Use this for searching. - FcPatternAddString(pattern, FAMILY.as_ptr() as *mut c_char, family_name as *mut FcChar8); - - // Request filename, style, and index for each variant in family - let object_set = FcObjectSetCreate(); // *mut FcObjectSet - FcObjectSetAdd(object_set, FILE.as_ptr() as *mut c_char); - FcObjectSetAdd(object_set, INDEX.as_ptr() as *mut c_char); - FcObjectSetAdd(object_set, STYLE.as_ptr() as *mut c_char); - - let variants = FcFontSetList(config, &mut font_set, 1 /* nsets */, pattern, object_set); - let num_variant = (*variants).nfont as isize; - - for i in 0..num_variant { - let font = (*variants).fonts.offset(i); - let mut file: *mut FcChar8 = ptr::null_mut(); - assert_eq!(FcPatternGetString(*font, FILE.as_ptr() as *mut c_char, 0, &mut file), - FcResultMatch); - let file = fc_char8_to_string(file); - - let mut style: *mut FcChar8 = ptr::null_mut(); - assert_eq!(FcPatternGetString(*font, STYLE.as_ptr() as *mut c_char, 0, &mut style), - FcResultMatch); - let style = fc_char8_to_string(style); - - let mut index = 0 as c_int; - assert_eq!(FcPatternGetInteger(*font, INDEX.as_ptr() as *mut c_char, 0, &mut index), - FcResultMatch); - - members.push(Variant { - style: style, - file: PathBuf::from(file), - index: index as isize, - }); - } - - FcFontSetDestroy(variants); - FcPatternDestroy(pattern); - FcObjectSetDestroy(object_set); - } - - Family { - name: family, - variants: members.into_iter().map(|v| (v.style.clone(), v)).collect() - } -} - -pub fn get_font_families() -> HashMap<String, Family> { - list_families().into_iter() - .map(|family| (family.clone(), get_family_info(family))) - .collect() -} - -#[cfg(test)] -mod tests { - #[test] - fn get_font_families() { - let families = super::get_font_families(); - assert!(!families.is_empty()); - } -} |