read_fonts/generated/
generated_vmtx.rs#[allow(unused_imports)]
use crate::codegen_prelude::*;
#[derive(Debug, Clone, Copy)]
#[doc(hidden)]
pub struct VmtxMarker {
v_metrics_byte_len: usize,
top_side_bearings_byte_len: usize,
}
impl VmtxMarker {
fn v_metrics_byte_range(&self) -> Range<usize> {
let start = 0;
start..start + self.v_metrics_byte_len
}
fn top_side_bearings_byte_range(&self) -> Range<usize> {
let start = self.v_metrics_byte_range().end;
start..start + self.top_side_bearings_byte_len
}
}
impl TopLevelTable for Vmtx<'_> {
const TAG: Tag = Tag::new(b"vmtx");
}
impl ReadArgs for Vmtx<'_> {
type Args = (u16, u16);
}
impl<'a> FontReadWithArgs<'a> for Vmtx<'a> {
fn read_with_args(data: FontData<'a>, args: &(u16, u16)) -> Result<Self, ReadError> {
let (number_of_long_ver_metrics, num_glyphs) = *args;
let mut cursor = data.cursor();
let v_metrics_byte_len = (number_of_long_ver_metrics as usize)
.checked_mul(LongMetric::RAW_BYTE_LEN)
.ok_or(ReadError::OutOfBounds)?;
cursor.advance_by(v_metrics_byte_len);
let top_side_bearings_byte_len =
(transforms::subtract(num_glyphs, number_of_long_ver_metrics))
.checked_mul(i16::RAW_BYTE_LEN)
.ok_or(ReadError::OutOfBounds)?;
cursor.advance_by(top_side_bearings_byte_len);
cursor.finish(VmtxMarker {
v_metrics_byte_len,
top_side_bearings_byte_len,
})
}
}
impl<'a> Vmtx<'a> {
pub fn read(
data: FontData<'a>,
number_of_long_ver_metrics: u16,
num_glyphs: u16,
) -> Result<Self, ReadError> {
let args = (number_of_long_ver_metrics, num_glyphs);
Self::read_with_args(data, &args)
}
}
pub type Vmtx<'a> = TableRef<'a, VmtxMarker>;
impl<'a> Vmtx<'a> {
pub fn v_metrics(&self) -> &'a [LongMetric] {
let range = self.shape.v_metrics_byte_range();
self.data.read_array(range).unwrap()
}
pub fn top_side_bearings(&self) -> &'a [BigEndian<i16>] {
let range = self.shape.top_side_bearings_byte_range();
self.data.read_array(range).unwrap()
}
}
#[cfg(feature = "experimental_traverse")]
impl<'a> SomeTable<'a> for Vmtx<'a> {
fn type_name(&self) -> &str {
"Vmtx"
}
fn get_field(&self, idx: usize) -> Option<Field<'a>> {
match idx {
0usize => Some(Field::new(
"v_metrics",
traversal::FieldType::array_of_records(
stringify!(LongMetric),
self.v_metrics(),
self.offset_data(),
),
)),
1usize => Some(Field::new("top_side_bearings", self.top_side_bearings())),
_ => None,
}
}
}
#[cfg(feature = "experimental_traverse")]
impl<'a> std::fmt::Debug for Vmtx<'a> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
(self as &dyn SomeTable<'a>).fmt(f)
}
}