Trait CharstringContext 

pub trait CharstringContext {
    // Required methods
    fn kind(&self) -> CharstringKind;
    fn seac_components(
        &self,
        base_code: i32,
        accent_code: i32,
    ) -> Result<[&[u8]; 2], Error>;
    fn global_subr(&self, index: i32) -> Result<&[u8], Error>;
    fn subr(&self, index: i32) -> Result<&[u8], Error>;

    // Provided methods
    fn weight_vector(&self) -> &[Fixed] { ... }
    fn build_char_len(&self) -> usize { ... }
}

Trait that provides context for charstring evaluation.

Required Methods

fn kind(&self) -> CharstringKind

Returns the type of the charstring.

fn seac_components( &self, base_code: i32, accent_code: i32, ) -> Result<[&[u8]; 2], Error>

Returns the base and accent charstrings for the seac (standard encoded accented character) operator.

fn global_subr(&self, index: i32) -> Result<&[u8], Error>

Returns the charstring for the global subroutine at the given index as encoded in the calling charstring.

fn subr(&self, index: i32) -> Result<&[u8], Error>

Returns the charstring for the local subroutine at the given index as encoded in the calling charstring.

Provided Methods

fn weight_vector(&self) -> &[Fixed]

Returns the current active weight vector for a multiple master font.

fn build_char_len(&self) -> usize

Returns the number of elements in the BuildCharArray of a multiple master font, which othersubrs read and write.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<'a> CharstringContext for (&'a [u8], &'a Index<'a>, &'a Index<'a>, &'a Index<'a>)

fn kind(&self) -> CharstringKind

fn seac_components( &self, base_code: i32, accent_code: i32, ) -> Result<[&[u8]; 2], Error>

fn global_subr(&self, index: i32) -> Result<&[u8], Error>

fn subr(&self, index: i32) -> Result<&[u8], Error>

Implementors

impl CharstringContext for Type1Font

impl CharstringContext for Type1Instance<'_>