Struct ItemVariationStore 

pub struct ItemVariationStore<'a> {
    pub variation_region_list: VariationRegionList<'a>,
    pub item_variation_data: Vec<ItemVariationData<'a>>,
}

Item variation store.

Includes a variation region list, which defines the different regions of the font’s variation space for which variation data is defined. It also includes a set of itemVariationData sub-tables, each of which provides a portion of the total variation data. Each sub-table is associated with some subset of the defined regions, and will include deltas used for one or more target items.

https://learn.microsoft.com/en-us/typography/opentype/spec/otvarcommonformats#variation-data

Fields

variation_region_list: VariationRegionList<'a>

The variation region list.

item_variation_data: Vec<ItemVariationData<'a>>

The item variation data

Implementations

impl<'a> ItemVariationStore<'a>

pub fn adjustment( &self, delta_set_entry: DeltaSetIndexMapEntry, instance: &OwnedTuple, ) -> Result<f32, ParseError>

Retrieve the scaled delta adjustment at the supplied delta_set_entry according to the user tuple instance.

pub fn regions( &self, index: u16, ) -> Result<impl Iterator<Item = Result<VariationRegion<'a>, ParseError>> + '_, ParseError>

Iterate over the variation regions of the ItemVariationData at index.

pub fn try_to_owned(&self) -> Result<ItemVariationStore, ParseError>

Returns an owned version of self.

Trait Implementations

impl<'a> Clone for ItemVariationStore<'a>

fn clone(&self) -> ItemVariationStore<'a>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl ReadBinary for ItemVariationStore<'_>

type HostType<'a> = ItemVariationStore<'a>

fn read<'a>(ctxt: &mut ReadCtxt<'a>) -> Result<Self::HostType<'a>, ParseError>

impl WriteBinary<&ItemVariationStore<'_>> for ItemVariationStore<'_>

type Output = ()

The type of the value returned by write.

fn write<C: WriteContext>( ctxt: &mut C, store: &Self, ) -> Result<Self::Output, WriteError>

Write the binary representation of Self to ctxt.