read-fonts 0.46.0

Reading OpenType font files.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

//! The [vmtx (Vertical Metrics)](https://docs.microsoft.com/en-us/typography/opentype/spec/vmtx) table

use super::hmtx;
pub use super::hmtx::LongMetric;

include!("../../generated/generated_vmtx.rs");

macro_rules! impl_vmtx_lookup {
    ($table:ident) => {
        impl $table<'_> {
            /// Returns the advance height for the given glyph identifier.
            pub fn advance(&self, glyph_id: GlyphId) -> Option<u16> {
                hmtx::advance(self.v_metrics(), glyph_id)
            }

            /// Returns the top side bearing for the given glyph identifier.
            pub fn side_bearing(&self, glyph_id: GlyphId) -> Option<i16> {
                hmtx::side_bearing(self.v_metrics(), self.top_side_bearings(), glyph_id)
            }
        }
    };
}

impl_vmtx_lookup!(Vmtx);
impl_vmtx_lookup!(VmtxExtended);