Trait CharacterCache 

pub trait CharacterCache {
    type Texture: ImageSize;
    type Error: Debug;

    // Required method
    fn character(
        &mut self,
        font_size: FontSize,
        ch: char,
    ) -> Result<Character<'_, Self::Texture>, Self::Error>;

    // Provided method
    fn width(
        &mut self,
        size: FontSize,
        text: &str,
    ) -> Result<Scalar, Self::Error> { ... }
}

Stores characters in a buffer and loads them by demand.

Required Associated Types

type Texture: ImageSize

The texture type associated with the character cache.

type Error: Debug

The error type associated with the character cache.

Required Methods

fn character( &mut self, font_size: FontSize, ch: char, ) -> Result<Character<'_, Self::Texture>, Self::Error>

Get reference to character.

Provided Methods

fn width(&mut self, size: FontSize, text: &str) -> Result<Scalar, Self::Error>

Return the width for some given text.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors