pango/
language.rs

1// Copyright 2018, The Gtk-rs Project Developers.
2// See the COPYRIGHT file at the top-level directory of this distribution.
3// Licensed under the MIT license, see the LICENSE file or <http://opensource.org/licenses/MIT>
4
5use glib::translate::*;
6use glib::GString;
7use pango_sys;
8use Script;
9
10pub struct Language(*mut pango_sys::PangoLanguage);
11
12#[doc(hidden)]
13impl<'a> ToGlibPtr<'a, *mut pango_sys::PangoLanguage> for &'a Language {
14    type Storage = &'a Language;
15
16    fn to_glib_none(&self) -> Stash<'a, *mut pango_sys::PangoLanguage, Self> {
17        Stash(self.0, *self)
18    }
19}
20
21#[doc(hidden)]
22impl<'a> ToGlibPtrMut<'a, *mut pango_sys::PangoLanguage> for Language {
23    type Storage = &'a mut Self;
24
25    #[inline]
26    fn to_glib_none_mut(&'a mut self) -> StashMut<'a, *mut pango_sys::PangoLanguage, Self> {
27        StashMut(self.0, self)
28    }
29}
30
31#[doc(hidden)]
32impl FromGlibPtrNone<*mut pango_sys::PangoLanguage> for Language {
33    unsafe fn from_glib_none(ptr: *mut pango_sys::PangoLanguage) -> Self {
34        assert!(!ptr.is_null());
35        Language(ptr)
36    }
37}
38
39#[doc(hidden)]
40impl FromGlibPtrFull<*mut pango_sys::PangoLanguage> for Language {
41    unsafe fn from_glib_full(ptr: *mut pango_sys::PangoLanguage) -> Self {
42        assert!(!ptr.is_null());
43        Language(ptr)
44    }
45}
46
47#[doc(hidden)]
48impl FromGlibPtrNone<*const pango_sys::PangoLanguage> for Language {
49    unsafe fn from_glib_none(ptr: *const pango_sys::PangoLanguage) -> Self {
50        assert!(!ptr.is_null());
51        Language(ptr as *mut _)
52    }
53}
54
55#[doc(hidden)]
56impl FromGlibPtrFull<*const pango_sys::PangoLanguage> for Language {
57    unsafe fn from_glib_full(ptr: *const pango_sys::PangoLanguage) -> Self {
58        assert!(!ptr.is_null());
59        Language(ptr as *mut _)
60    }
61}
62
63impl Default for Language {
64    fn default() -> Language {
65        unsafe { from_glib_full(pango_sys::pango_language_get_default()) }
66    }
67}
68
69impl Language {
70    pub fn from_string(language: &str) -> Language {
71        unsafe {
72            from_glib_full(pango_sys::pango_language_from_string(
73                language.to_glib_none().0,
74            ))
75        }
76    }
77
78    pub fn to_string(&self) -> GString {
79        unsafe { from_glib_none(pango_sys::pango_language_to_string(self.to_glib_none().0)) }
80    }
81
82    pub fn matches(&self, range_list: &str) -> bool {
83        unsafe {
84            pango_sys::pango_language_matches(self.to_glib_none().0, range_list.to_glib_none().0)
85                .to_bool()
86        }
87    }
88
89    pub fn includes_script(&self, script: Script) -> bool {
90        unsafe {
91            pango_sys::pango_language_includes_script(self.to_glib_none().0, script.to_glib())
92                .to_bool()
93        }
94    }
95
96    pub fn get_scripts(&self) -> Vec<Script> {
97        let mut num_scripts = 0;
98        let mut ret = Vec::new();
99
100        unsafe {
101            let scripts: *const pango_sys::PangoScript =
102                pango_sys::pango_language_get_scripts(self.to_glib_none().0, &mut num_scripts);
103            if num_scripts > 0 {
104                for x in 0..num_scripts {
105                    ret.push(from_glib(
106                        *(scripts.offset(x as isize) as *const pango_sys::PangoScript),
107                    ));
108                }
109            }
110            ret
111        }
112    }
113
114    pub fn get_sample_string(&self) -> GString {
115        unsafe {
116            from_glib_none(pango_sys::pango_language_get_sample_string(
117                self.to_glib_none().0,
118            ))
119        }
120    }
121}