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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
pub mod cache;
pub mod editor;
pub mod paragraph;
pub use cache::Cache;
pub use editor::Editor;
pub use paragraph::Paragraph;
pub use cosmic_text;
use crate::core::font::{self, Font};
use crate::core::text::Shaping;
use crate::core::Size;
use once_cell::sync::OnceCell;
use std::borrow::Cow;
use std::sync::{Arc, RwLock};
pub fn font_system() -> &'static RwLock<FontSystem> {
static FONT_SYSTEM: OnceCell<RwLock<FontSystem>> = OnceCell::new();
FONT_SYSTEM.get_or_init(|| {
RwLock::new(FontSystem {
raw: cosmic_text::FontSystem::new_with_fonts(
[cosmic_text::fontdb::Source::Binary(Arc::new(
include_bytes!("../fonts/Iced-Icons.ttf").as_slice(),
))]
.into_iter(),
),
version: Version::default(),
})
})
}
#[allow(missing_debug_implementations)]
pub struct FontSystem {
raw: cosmic_text::FontSystem,
version: Version,
}
impl FontSystem {
pub fn raw(&mut self) -> &mut cosmic_text::FontSystem {
&mut self.raw
}
pub fn load_font(&mut self, bytes: Cow<'static, [u8]>) {
let _ = self.raw.db_mut().load_font_source(
cosmic_text::fontdb::Source::Binary(Arc::new(bytes.into_owned())),
);
self.version = Version(self.version.0 + 1);
}
pub fn version(&self) -> Version {
self.version
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Default)]
pub struct Version(u32);
pub fn measure(buffer: &cosmic_text::Buffer) -> Size {
let (width, total_lines) = buffer
.layout_runs()
.fold((0.0, 0usize), |(width, total_lines), run| {
(run.line_w.max(width), total_lines + 1)
});
Size::new(width, total_lines as f32 * buffer.metrics().line_height)
}
pub fn to_attributes(font: Font) -> cosmic_text::Attrs<'static> {
cosmic_text::Attrs::new()
.family(to_family(font.family))
.weight(to_weight(font.weight))
.stretch(to_stretch(font.stretch))
.style(to_style(font.style))
}
fn to_family(family: font::Family) -> cosmic_text::Family<'static> {
match family {
font::Family::Name(name) => cosmic_text::Family::Name(name),
font::Family::SansSerif => cosmic_text::Family::SansSerif,
font::Family::Serif => cosmic_text::Family::Serif,
font::Family::Cursive => cosmic_text::Family::Cursive,
font::Family::Fantasy => cosmic_text::Family::Fantasy,
font::Family::Monospace => cosmic_text::Family::Monospace,
}
}
fn to_weight(weight: font::Weight) -> cosmic_text::Weight {
match weight {
font::Weight::Thin => cosmic_text::Weight::THIN,
font::Weight::ExtraLight => cosmic_text::Weight::EXTRA_LIGHT,
font::Weight::Light => cosmic_text::Weight::LIGHT,
font::Weight::Normal => cosmic_text::Weight::NORMAL,
font::Weight::Medium => cosmic_text::Weight::MEDIUM,
font::Weight::Semibold => cosmic_text::Weight::SEMIBOLD,
font::Weight::Bold => cosmic_text::Weight::BOLD,
font::Weight::ExtraBold => cosmic_text::Weight::EXTRA_BOLD,
font::Weight::Black => cosmic_text::Weight::BLACK,
}
}
fn to_stretch(stretch: font::Stretch) -> cosmic_text::Stretch {
match stretch {
font::Stretch::UltraCondensed => cosmic_text::Stretch::UltraCondensed,
font::Stretch::ExtraCondensed => cosmic_text::Stretch::ExtraCondensed,
font::Stretch::Condensed => cosmic_text::Stretch::Condensed,
font::Stretch::SemiCondensed => cosmic_text::Stretch::SemiCondensed,
font::Stretch::Normal => cosmic_text::Stretch::Normal,
font::Stretch::SemiExpanded => cosmic_text::Stretch::SemiExpanded,
font::Stretch::Expanded => cosmic_text::Stretch::Expanded,
font::Stretch::ExtraExpanded => cosmic_text::Stretch::ExtraExpanded,
font::Stretch::UltraExpanded => cosmic_text::Stretch::UltraExpanded,
}
}
fn to_style(style: font::Style) -> cosmic_text::Style {
match style {
font::Style::Normal => cosmic_text::Style::Normal,
font::Style::Italic => cosmic_text::Style::Italic,
font::Style::Oblique => cosmic_text::Style::Oblique,
}
}
pub fn to_shaping(shaping: Shaping) -> cosmic_text::Shaping {
match shaping {
Shaping::Basic => cosmic_text::Shaping::Basic,
Shaping::Advanced => cosmic_text::Shaping::Advanced,
}
}
|
