1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
use Coverage;
use EngineShape;
use FontDescription;
use FontMap;
use FontMetrics;
use Glyph;
use Language;
use Rectangle;
use ffi;
use glib::object::IsA;
use glib::translate::*;
use gobject_ffi;
glib_wrapper! {
pub struct Font(Object<ffi::PangoFont>);
match fn {
get_type => || ffi::pango_font_get_type(),
}
}
pub trait FontExt {
fn describe(&self) -> Option<FontDescription>;
fn describe_with_absolute_size(&self) -> Option<FontDescription>;
fn find_shaper(&self, language: &Language, ch: u32) -> Option<EngineShape>;
fn get_coverage(&self, language: &Language) -> Option<Coverage>;
fn get_font_map(&self) -> Option<FontMap>;
fn get_glyph_extents(&self, glyph: Glyph) -> (Rectangle, Rectangle);
fn get_metrics<'a, P: Into<Option<&'a Language>>>(&self, language: P) -> Option<FontMetrics>;
}
impl<O: IsA<Font>> FontExt for O {
fn describe(&self) -> Option<FontDescription> {
unsafe {
from_glib_full(ffi::pango_font_describe(self.to_glib_none().0))
}
}
fn describe_with_absolute_size(&self) -> Option<FontDescription> {
unsafe {
from_glib_full(ffi::pango_font_describe_with_absolute_size(self.to_glib_none().0))
}
}
fn find_shaper(&self, language: &Language, ch: u32) -> Option<EngineShape> {
unsafe {
from_glib_none(ffi::pango_font_find_shaper(self.to_glib_none().0, mut_override(language.to_glib_none().0), ch))
}
}
fn get_coverage(&self, language: &Language) -> Option<Coverage> {
unsafe {
from_glib_full(ffi::pango_font_get_coverage(self.to_glib_none().0, mut_override(language.to_glib_none().0)))
}
}
fn get_font_map(&self) -> Option<FontMap> {
unsafe {
from_glib_none(ffi::pango_font_get_font_map(self.to_glib_none().0))
}
}
fn get_glyph_extents(&self, glyph: Glyph) -> (Rectangle, Rectangle) {
unsafe {
let mut ink_rect = Rectangle::uninitialized();
let mut logical_rect = Rectangle::uninitialized();
ffi::pango_font_get_glyph_extents(self.to_glib_none().0, glyph, ink_rect.to_glib_none_mut().0, logical_rect.to_glib_none_mut().0);
(ink_rect, logical_rect)
}
}
fn get_metrics<'a, P: Into<Option<&'a Language>>>(&self, language: P) -> Option<FontMetrics> {
let language = language.into();
unsafe {
from_glib_full(ffi::pango_font_get_metrics(self.to_glib_none().0, mut_override(language.to_glib_none().0)))
}
}
}