read-fonts 0.46.0

// THIS FILE IS AUTOGENERATED.
// Any changes to this file will be overwritten.
// For more information about how codegen works, see font-codegen/README.md

#[allow(unused_imports)]
use crate::codegen_prelude::*;

impl<'a> MinByteRange<'a> for Vvar<'a> {
    fn min_byte_range(&self) -> Range<usize> {
        0..self.v_org_mapping_offset_byte_range().end
    }
    fn min_table_bytes(&self) -> &'a [u8] {
        let range = self.min_byte_range();
        self.offset_data().as_bytes().get(range).unwrap_or_default()
    }
}

impl TopLevelTable for Vvar<'_> {
    /// `VVAR`
    const TAG: Tag = Tag::new(b"VVAR");
}

impl ReadArgs for Vvar<'_> {
    type Args = ();
}

impl<'a> FontRead<'a> for Vvar<'a> {
    fn read_with_args(data: FontData<'a>, _: ()) -> Result<Self, ReadError> {
        #[allow(clippy::absurd_extreme_comparisons)]
        if data.len() < Self::MIN_SIZE {
            return Err(ReadError::OutOfBounds);
        }
        let Some(data) = TableDataRef::new(data.as_bytes()) else {
            return Err(ReadError::OutOfBounds);
        };
        Ok(Self { data })
    }
}

/// The fields at the start of the table, which are read directly.
#[derive(Clone, Copy, bytemuck :: AnyBitPattern)]
#[repr(C, packed)]
#[doc(hidden)]
pub struct VvarFixedHeader {
    pub version: BigEndian<MajorMinor>,
    pub item_variation_store_offset: BigEndian<Offset32>,
    pub advance_height_mapping_offset: BigEndian<Nullable<Offset32>>,
    pub tsb_mapping_offset: BigEndian<Nullable<Offset32>>,
    pub bsb_mapping_offset: BigEndian<Nullable<Offset32>>,
    pub v_org_mapping_offset: BigEndian<Nullable<Offset32>>,
}

#[allow(clippy::absurd_extreme_comparisons)]
const _: () = assert!(std::mem::size_of::<VvarFixedHeader>() <= Vvar::MIN_SIZE);

/// The [VVAR (Vertical Metrics Variations)](https://docs.microsoft.com/en-us/typography/opentype/spec/vvar) table
#[derive(Clone)]
pub struct Vvar<'a> {
    data: TableDataRef<'a, VvarFixedHeader>,
}

#[allow(clippy::needless_lifetimes)]
impl<'a> Vvar<'a> {
    pub const MIN_SIZE: usize = (MajorMinor::RAW_BYTE_LEN
        + Offset32::RAW_BYTE_LEN
        + Offset32::RAW_BYTE_LEN
        + Offset32::RAW_BYTE_LEN
        + Offset32::RAW_BYTE_LEN
        + Offset32::RAW_BYTE_LEN);
    basic_table_impls!(impl_the_methods);

    /// Major version number of the horizontal metrics variations table — set to 1.
    /// Minor version number of the horizontal metrics variations table — set to 0.
    pub fn version(&self) -> MajorMinor {
        self.data.header().version.get()
    }

    /// Offset in bytes from the start of this table to the item variation store table.
    pub fn item_variation_store_offset(&self) -> Offset32 {
        self.data.header().item_variation_store_offset.get()
    }

    /// Attempt to resolve [`item_variation_store_offset`][Self::item_variation_store_offset].
    pub fn item_variation_store(&self) -> Result<ItemVariationStore<'a>, ReadError> {
        let data = self.offset_data();
        self.item_variation_store_offset().resolve(data)
    }

    /// Offset in bytes from the start of this table to the delta-set index mapping for advance heights (may be NULL).
    pub fn advance_height_mapping_offset(&self) -> Nullable<Offset32> {
        self.data.header().advance_height_mapping_offset.get()
    }

    /// Attempt to resolve [`advance_height_mapping_offset`][Self::advance_height_mapping_offset].
    pub fn advance_height_mapping(&self) -> Option<Result<DeltaSetIndexMap<'a>, ReadError>> {
        let data = self.offset_data();
        self.advance_height_mapping_offset().resolve(data)
    }

    /// Offset in bytes from the start of this table to the delta-set index mapping for top side bearings (may be NULL).
    pub fn tsb_mapping_offset(&self) -> Nullable<Offset32> {
        self.data.header().tsb_mapping_offset.get()
    }

    /// Attempt to resolve [`tsb_mapping_offset`][Self::tsb_mapping_offset].
    pub fn tsb_mapping(&self) -> Option<Result<DeltaSetIndexMap<'a>, ReadError>> {
        let data = self.offset_data();
        self.tsb_mapping_offset().resolve(data)
    }

    /// Offset in bytes from the start of this table to the delta-set index mapping for bottom side bearings (may be NULL).
    pub fn bsb_mapping_offset(&self) -> Nullable<Offset32> {
        self.data.header().bsb_mapping_offset.get()
    }

    /// Attempt to resolve [`bsb_mapping_offset`][Self::bsb_mapping_offset].
    pub fn bsb_mapping(&self) -> Option<Result<DeltaSetIndexMap<'a>, ReadError>> {
        let data = self.offset_data();
        self.bsb_mapping_offset().resolve(data)
    }

    /// Offset in bytes from the start of this table to the delta-set index mapping for Y coordinates of vertical origins (may be NULL).
    pub fn v_org_mapping_offset(&self) -> Nullable<Offset32> {
        self.data.header().v_org_mapping_offset.get()
    }

    /// Attempt to resolve [`v_org_mapping_offset`][Self::v_org_mapping_offset].
    pub fn v_org_mapping(&self) -> Option<Result<DeltaSetIndexMap<'a>, ReadError>> {
        let data = self.offset_data();
        self.v_org_mapping_offset().resolve(data)
    }

    pub fn version_byte_range(&self) -> Range<usize> {
        let start = 0;
        let end = start + MajorMinor::RAW_BYTE_LEN;
        start..end
    }

    pub fn item_variation_store_offset_byte_range(&self) -> Range<usize> {
        let start = self.version_byte_range().end;
        let end = start + Offset32::RAW_BYTE_LEN;
        start..end
    }

    pub fn advance_height_mapping_offset_byte_range(&self) -> Range<usize> {
        let start = self.item_variation_store_offset_byte_range().end;
        let end = start + Offset32::RAW_BYTE_LEN;
        start..end
    }

    pub fn tsb_mapping_offset_byte_range(&self) -> Range<usize> {
        let start = self.advance_height_mapping_offset_byte_range().end;
        let end = start + Offset32::RAW_BYTE_LEN;
        start..end
    }

    pub fn bsb_mapping_offset_byte_range(&self) -> Range<usize> {
        let start = self.tsb_mapping_offset_byte_range().end;
        let end = start + Offset32::RAW_BYTE_LEN;
        start..end
    }

    pub fn v_org_mapping_offset_byte_range(&self) -> Range<usize> {
        let start = self.bsb_mapping_offset_byte_range().end;
        let end = start + Offset32::RAW_BYTE_LEN;
        start..end
    }
}

const _: () = assert!(FontData::default_data_long_enough(Vvar::MIN_SIZE));

impl Default for Vvar<'_> {
    fn default() -> Self {
        Self {
            data: TableDataRef::new(FontData::default_table_data().as_bytes())
                .unwrap_or_else(|| unreachable!("the default data covers MIN_SIZE")),
        }
    }
}