read_fonts/generated/
generated_cff.rs

1// THIS FILE IS AUTOGENERATED.
2// Any changes to this file will be overwritten.
3// For more information about how codegen works, see font-codegen/README.md
4
5#[allow(unused_imports)]
6use crate::codegen_prelude::*;
7
8/// [Compact Font Format](https://learn.microsoft.com/en-us/typography/opentype/spec/cff) table header
9#[derive(Debug, Clone, Copy)]
10#[doc(hidden)]
11pub struct CffHeaderMarker {
12    _padding_byte_len: usize,
13    trailing_data_byte_len: usize,
14}
15
16impl CffHeaderMarker {
17    pub fn major_byte_range(&self) -> Range<usize> {
18        let start = 0;
19        start..start + u8::RAW_BYTE_LEN
20    }
21
22    pub fn minor_byte_range(&self) -> Range<usize> {
23        let start = self.major_byte_range().end;
24        start..start + u8::RAW_BYTE_LEN
25    }
26
27    pub fn hdr_size_byte_range(&self) -> Range<usize> {
28        let start = self.minor_byte_range().end;
29        start..start + u8::RAW_BYTE_LEN
30    }
31
32    pub fn off_size_byte_range(&self) -> Range<usize> {
33        let start = self.hdr_size_byte_range().end;
34        start..start + u8::RAW_BYTE_LEN
35    }
36
37    pub fn _padding_byte_range(&self) -> Range<usize> {
38        let start = self.off_size_byte_range().end;
39        start..start + self._padding_byte_len
40    }
41
42    pub fn trailing_data_byte_range(&self) -> Range<usize> {
43        let start = self._padding_byte_range().end;
44        start..start + self.trailing_data_byte_len
45    }
46}
47
48impl MinByteRange for CffHeaderMarker {
49    fn min_byte_range(&self) -> Range<usize> {
50        0..self.trailing_data_byte_range().end
51    }
52}
53
54impl<'a> FontRead<'a> for CffHeader<'a> {
55    fn read(data: FontData<'a>) -> Result<Self, ReadError> {
56        let mut cursor = data.cursor();
57        cursor.advance::<u8>();
58        cursor.advance::<u8>();
59        let hdr_size: u8 = cursor.read()?;
60        cursor.advance::<u8>();
61        let _padding_byte_len = (transforms::subtract(hdr_size, 4_usize))
62            .checked_mul(u8::RAW_BYTE_LEN)
63            .ok_or(ReadError::OutOfBounds)?;
64        cursor.advance_by(_padding_byte_len);
65        let trailing_data_byte_len = cursor.remaining_bytes() / u8::RAW_BYTE_LEN * u8::RAW_BYTE_LEN;
66        cursor.advance_by(trailing_data_byte_len);
67        cursor.finish(CffHeaderMarker {
68            _padding_byte_len,
69            trailing_data_byte_len,
70        })
71    }
72}
73
74/// [Compact Font Format](https://learn.microsoft.com/en-us/typography/opentype/spec/cff) table header
75pub type CffHeader<'a> = TableRef<'a, CffHeaderMarker>;
76
77#[allow(clippy::needless_lifetimes)]
78impl<'a> CffHeader<'a> {
79    /// Format major version (starting at 1).
80    pub fn major(&self) -> u8 {
81        let range = self.shape.major_byte_range();
82        self.data.read_at(range.start).unwrap()
83    }
84
85    /// Format minor version (starting at 0).
86    pub fn minor(&self) -> u8 {
87        let range = self.shape.minor_byte_range();
88        self.data.read_at(range.start).unwrap()
89    }
90
91    /// Header size (bytes).
92    pub fn hdr_size(&self) -> u8 {
93        let range = self.shape.hdr_size_byte_range();
94        self.data.read_at(range.start).unwrap()
95    }
96
97    /// Absolute offset size.
98    pub fn off_size(&self) -> u8 {
99        let range = self.shape.off_size_byte_range();
100        self.data.read_at(range.start).unwrap()
101    }
102
103    /// Padding bytes before the start of the Name INDEX.
104    pub fn _padding(&self) -> &'a [u8] {
105        let range = self.shape._padding_byte_range();
106        self.data.read_array(range).unwrap()
107    }
108
109    /// Remaining table data.
110    pub fn trailing_data(&self) -> &'a [u8] {
111        let range = self.shape.trailing_data_byte_range();
112        self.data.read_array(range).unwrap()
113    }
114}
115
116#[cfg(feature = "experimental_traverse")]
117impl<'a> SomeTable<'a> for CffHeader<'a> {
118    fn type_name(&self) -> &str {
119        "CffHeader"
120    }
121    fn get_field(&self, idx: usize) -> Option<Field<'a>> {
122        match idx {
123            0usize => Some(Field::new("major", self.major())),
124            1usize => Some(Field::new("minor", self.minor())),
125            2usize => Some(Field::new("hdr_size", self.hdr_size())),
126            3usize => Some(Field::new("off_size", self.off_size())),
127            4usize => Some(Field::new("_padding", self._padding())),
128            5usize => Some(Field::new("trailing_data", self.trailing_data())),
129            _ => None,
130        }
131    }
132}
133
134#[cfg(feature = "experimental_traverse")]
135#[allow(clippy::needless_lifetimes)]
136impl<'a> std::fmt::Debug for CffHeader<'a> {
137    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
138        (self as &dyn SomeTable<'a>).fmt(f)
139    }
140}
read_fonts/generated/generated_cff.rs

read_fonts/generated/
generated_cff.rs
