read_fonts/generated/
generated_cff2.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 (CFF) version 2](https://learn.microsoft.com/en-us/typography/opentype/spec/cff2) table header
9#[derive(Debug, Clone, Copy)]
10#[doc(hidden)]
11pub struct Cff2HeaderMarker {
12    _padding_byte_len: usize,
13    top_dict_data_byte_len: usize,
14    trailing_data_byte_len: usize,
15}
16
17impl Cff2HeaderMarker {
18    pub fn major_version_byte_range(&self) -> Range<usize> {
19        let start = 0;
20        start..start + u8::RAW_BYTE_LEN
21    }
22
23    pub fn minor_version_byte_range(&self) -> Range<usize> {
24        let start = self.major_version_byte_range().end;
25        start..start + u8::RAW_BYTE_LEN
26    }
27
28    pub fn header_size_byte_range(&self) -> Range<usize> {
29        let start = self.minor_version_byte_range().end;
30        start..start + u8::RAW_BYTE_LEN
31    }
32
33    pub fn top_dict_length_byte_range(&self) -> Range<usize> {
34        let start = self.header_size_byte_range().end;
35        start..start + u16::RAW_BYTE_LEN
36    }
37
38    pub fn _padding_byte_range(&self) -> Range<usize> {
39        let start = self.top_dict_length_byte_range().end;
40        start..start + self._padding_byte_len
41    }
42
43    pub fn top_dict_data_byte_range(&self) -> Range<usize> {
44        let start = self._padding_byte_range().end;
45        start..start + self.top_dict_data_byte_len
46    }
47
48    pub fn trailing_data_byte_range(&self) -> Range<usize> {
49        let start = self.top_dict_data_byte_range().end;
50        start..start + self.trailing_data_byte_len
51    }
52}
53
54impl MinByteRange for Cff2HeaderMarker {
55    fn min_byte_range(&self) -> Range<usize> {
56        0..self.trailing_data_byte_range().end
57    }
58}
59
60impl<'a> FontRead<'a> for Cff2Header<'a> {
61    fn read(data: FontData<'a>) -> Result<Self, ReadError> {
62        let mut cursor = data.cursor();
63        cursor.advance::<u8>();
64        cursor.advance::<u8>();
65        let header_size: u8 = cursor.read()?;
66        let top_dict_length: u16 = cursor.read()?;
67        let _padding_byte_len = (transforms::subtract(header_size, 5_usize))
68            .checked_mul(u8::RAW_BYTE_LEN)
69            .ok_or(ReadError::OutOfBounds)?;
70        cursor.advance_by(_padding_byte_len);
71        let top_dict_data_byte_len = (top_dict_length as usize)
72            .checked_mul(u8::RAW_BYTE_LEN)
73            .ok_or(ReadError::OutOfBounds)?;
74        cursor.advance_by(top_dict_data_byte_len);
75        let trailing_data_byte_len = cursor.remaining_bytes() / u8::RAW_BYTE_LEN * u8::RAW_BYTE_LEN;
76        cursor.advance_by(trailing_data_byte_len);
77        cursor.finish(Cff2HeaderMarker {
78            _padding_byte_len,
79            top_dict_data_byte_len,
80            trailing_data_byte_len,
81        })
82    }
83}
84
85/// [Compact Font Format (CFF) version 2](https://learn.microsoft.com/en-us/typography/opentype/spec/cff2) table header
86pub type Cff2Header<'a> = TableRef<'a, Cff2HeaderMarker>;
87
88#[allow(clippy::needless_lifetimes)]
89impl<'a> Cff2Header<'a> {
90    /// Format major version (set to 2).
91    pub fn major_version(&self) -> u8 {
92        let range = self.shape.major_version_byte_range();
93        self.data.read_at(range.start).unwrap()
94    }
95
96    /// Format minor version (set to 0).
97    pub fn minor_version(&self) -> u8 {
98        let range = self.shape.minor_version_byte_range();
99        self.data.read_at(range.start).unwrap()
100    }
101
102    /// Header size (bytes).
103    pub fn header_size(&self) -> u8 {
104        let range = self.shape.header_size_byte_range();
105        self.data.read_at(range.start).unwrap()
106    }
107
108    /// Length of Top DICT structure in bytes.
109    pub fn top_dict_length(&self) -> u16 {
110        let range = self.shape.top_dict_length_byte_range();
111        self.data.read_at(range.start).unwrap()
112    }
113
114    /// Padding bytes before the start of the Top DICT.
115    pub fn _padding(&self) -> &'a [u8] {
116        let range = self.shape._padding_byte_range();
117        self.data.read_array(range).unwrap()
118    }
119
120    /// Data containing the Top DICT.
121    pub fn top_dict_data(&self) -> &'a [u8] {
122        let range = self.shape.top_dict_data_byte_range();
123        self.data.read_array(range).unwrap()
124    }
125
126    /// Remaining table data.
127    pub fn trailing_data(&self) -> &'a [u8] {
128        let range = self.shape.trailing_data_byte_range();
129        self.data.read_array(range).unwrap()
130    }
131}
132
133#[cfg(feature = "experimental_traverse")]
134impl<'a> SomeTable<'a> for Cff2Header<'a> {
135    fn type_name(&self) -> &str {
136        "Cff2Header"
137    }
138    fn get_field(&self, idx: usize) -> Option<Field<'a>> {
139        match idx {
140            0usize => Some(Field::new("major_version", self.major_version())),
141            1usize => Some(Field::new("minor_version", self.minor_version())),
142            2usize => Some(Field::new("header_size", self.header_size())),
143            3usize => Some(Field::new("top_dict_length", self.top_dict_length())),
144            4usize => Some(Field::new("_padding", self._padding())),
145            5usize => Some(Field::new("top_dict_data", self.top_dict_data())),
146            6usize => Some(Field::new("trailing_data", self.trailing_data())),
147            _ => None,
148        }
149    }
150}
151
152#[cfg(feature = "experimental_traverse")]
153#[allow(clippy::needless_lifetimes)]
154impl<'a> std::fmt::Debug for Cff2Header<'a> {
155    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
156        (self as &dyn SomeTable<'a>).fmt(f)
157    }
158}
read_fonts/generated/generated_cff2.rs

read_fonts/generated/
generated_cff2.rs
