read-fonts 0.45.1

// 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 Vhea<'a> {
    fn min_byte_range(&self) -> Range<usize> {
        0..self.number_of_long_ver_metrics_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 Vhea<'_> {
    /// `vhea`
    const TAG: Tag = Tag::new(b"vhea");
}

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

impl<'a> FontRead<'a> for Vhea<'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 VheaFixedHeader {
    pub version: BigEndian<Version16Dot16>,
    pub ascender: BigEndian<FWord>,
    pub descender: BigEndian<FWord>,
    pub line_gap: BigEndian<FWord>,
    pub advance_height_max: BigEndian<UfWord>,
    pub min_top_side_bearing: BigEndian<FWord>,
    pub min_bottom_side_bearing: BigEndian<FWord>,
    pub y_max_extent: BigEndian<FWord>,
    pub caret_slope_rise: BigEndian<i16>,
    pub caret_slope_run: BigEndian<i16>,
    pub caret_offset: BigEndian<i16>,
    pub reserved1: BigEndian<i16>,
    pub reserved2: BigEndian<i16>,
    pub reserved3: BigEndian<i16>,
    pub reserved4: BigEndian<i16>,
    pub metric_data_format: BigEndian<i16>,
    pub number_of_long_ver_metrics: BigEndian<u16>,
}

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

/// The [vhea](https://docs.microsoft.com/en-us/typography/opentype/spec/vhea) Vertical Header Table
#[derive(Clone)]
pub struct Vhea<'a> {
    data: TableDataRef<'a, VheaFixedHeader>,
}

#[allow(clippy::needless_lifetimes)]
impl<'a> Vhea<'a> {
    pub const MIN_SIZE: usize = (Version16Dot16::RAW_BYTE_LEN
        + FWord::RAW_BYTE_LEN
        + FWord::RAW_BYTE_LEN
        + FWord::RAW_BYTE_LEN
        + UfWord::RAW_BYTE_LEN
        + FWord::RAW_BYTE_LEN
        + FWord::RAW_BYTE_LEN
        + FWord::RAW_BYTE_LEN
        + i16::RAW_BYTE_LEN
        + i16::RAW_BYTE_LEN
        + i16::RAW_BYTE_LEN
        + i16::RAW_BYTE_LEN
        + i16::RAW_BYTE_LEN
        + i16::RAW_BYTE_LEN
        + i16::RAW_BYTE_LEN
        + i16::RAW_BYTE_LEN
        + u16::RAW_BYTE_LEN);
    basic_table_impls!(impl_the_methods);

    /// The major/minor version (1, 0 or 1, 1)
    pub fn version(&self) -> Version16Dot16 {
        self.data.header().version.get()
    }

    /// Typographic ascent.
    pub fn ascender(&self) -> FWord {
        self.data.header().ascender.get()
    }

    /// Typographic descent.
    pub fn descender(&self) -> FWord {
        self.data.header().descender.get()
    }

    /// Typographic line gap. Negative LineGap values are treated as
    /// zero in some legacy platform implementations.
    pub fn line_gap(&self) -> FWord {
        self.data.header().line_gap.get()
    }

    /// Maximum advance height value in 'vmtx' table.
    pub fn advance_height_max(&self) -> UfWord {
        self.data.header().advance_height_max.get()
    }

    /// Minimum top sidebearing value in 'vmtx' table for glyphs with
    /// contours (empty glyphs should be ignored).
    pub fn min_top_side_bearing(&self) -> FWord {
        self.data.header().min_top_side_bearing.get()
    }

    /// Minimum bottom sidebearing value
    pub fn min_bottom_side_bearing(&self) -> FWord {
        self.data.header().min_bottom_side_bearing.get()
    }

    /// Defined as max( tsb + (yMax-yMin)).
    pub fn y_max_extent(&self) -> FWord {
        self.data.header().y_max_extent.get()
    }

    /// Used to calculate the slope of the cursor (rise/run); 1 for
    /// vertical caret, 0 for horizontal.
    pub fn caret_slope_rise(&self) -> i16 {
        self.data.header().caret_slope_rise.get()
    }

    /// 0 for vertical caret, 1 for horizontal.
    pub fn caret_slope_run(&self) -> i16 {
        self.data.header().caret_slope_run.get()
    }

    /// The amount by which a slanted highlight on a glyph needs to be
    /// shifted to produce the best appearance. Set to 0 for
    /// non-slanted fonts
    pub fn caret_offset(&self) -> i16 {
        self.data.header().caret_offset.get()
    }

    /// 0 for current format.
    pub fn metric_data_format(&self) -> i16 {
        self.data.header().metric_data_format.get()
    }

    /// Number of advance heights in the vertical metrics (`vmtx`) table.
    pub fn number_of_long_ver_metrics(&self) -> u16 {
        self.data.header().number_of_long_ver_metrics.get()
    }

    pub fn version_byte_range(&self) -> Range<usize> {
        let start = 0;
        let end = start + Version16Dot16::RAW_BYTE_LEN;
        start..end
    }

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

    pub fn descender_byte_range(&self) -> Range<usize> {
        let start = self.ascender_byte_range().end;
        let end = start + FWord::RAW_BYTE_LEN;
        start..end
    }

    pub fn line_gap_byte_range(&self) -> Range<usize> {
        let start = self.descender_byte_range().end;
        let end = start + FWord::RAW_BYTE_LEN;
        start..end
    }

    pub fn advance_height_max_byte_range(&self) -> Range<usize> {
        let start = self.line_gap_byte_range().end;
        let end = start + UfWord::RAW_BYTE_LEN;
        start..end
    }

    pub fn min_top_side_bearing_byte_range(&self) -> Range<usize> {
        let start = self.advance_height_max_byte_range().end;
        let end = start + FWord::RAW_BYTE_LEN;
        start..end
    }

    pub fn min_bottom_side_bearing_byte_range(&self) -> Range<usize> {
        let start = self.min_top_side_bearing_byte_range().end;
        let end = start + FWord::RAW_BYTE_LEN;
        start..end
    }

    pub fn y_max_extent_byte_range(&self) -> Range<usize> {
        let start = self.min_bottom_side_bearing_byte_range().end;
        let end = start + FWord::RAW_BYTE_LEN;
        start..end
    }

    pub fn caret_slope_rise_byte_range(&self) -> Range<usize> {
        let start = self.y_max_extent_byte_range().end;
        let end = start + i16::RAW_BYTE_LEN;
        start..end
    }

    pub fn caret_slope_run_byte_range(&self) -> Range<usize> {
        let start = self.caret_slope_rise_byte_range().end;
        let end = start + i16::RAW_BYTE_LEN;
        start..end
    }

    pub fn caret_offset_byte_range(&self) -> Range<usize> {
        let start = self.caret_slope_run_byte_range().end;
        let end = start + i16::RAW_BYTE_LEN;
        start..end
    }

    pub fn reserved1_byte_range(&self) -> Range<usize> {
        let start = self.caret_offset_byte_range().end;
        let end = start + i16::RAW_BYTE_LEN;
        start..end
    }

    pub fn reserved2_byte_range(&self) -> Range<usize> {
        let start = self.reserved1_byte_range().end;
        let end = start + i16::RAW_BYTE_LEN;
        start..end
    }

    pub fn reserved3_byte_range(&self) -> Range<usize> {
        let start = self.reserved2_byte_range().end;
        let end = start + i16::RAW_BYTE_LEN;
        start..end
    }

    pub fn reserved4_byte_range(&self) -> Range<usize> {
        let start = self.reserved3_byte_range().end;
        let end = start + i16::RAW_BYTE_LEN;
        start..end
    }

    pub fn metric_data_format_byte_range(&self) -> Range<usize> {
        let start = self.reserved4_byte_range().end;
        let end = start + i16::RAW_BYTE_LEN;
        start..end
    }

    pub fn number_of_long_ver_metrics_byte_range(&self) -> Range<usize> {
        let start = self.metric_data_format_byte_range().end;
        let end = start + u16::RAW_BYTE_LEN;
        start..end
    }
}

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

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