Struct font::Font

pub struct Font {
    pub units_per_em: usize,
    pub ascender: isize,
    pub descender: isize,
    pub case: Box<Case>,
}

A font.

Fields

units_per_em: usize

The number of units per em.

ascender: isize

The ascender line relative to the base line.

descender: isize

The descender line relative to the base line.

case: Box<Case>

The collection of glyphs.

Methods

impl Font

fn open<T: AsRef<Path>>(path: T) -> Result<Self>

Open a file containing a single font.

fn read<T: Read + Seek>(tape: &mut T) -> Result<Self>

Read a file containing a single font.

Methods from Deref<Target = Box<Case>>

fn downcast<T>(self) -> Result<Box<T>, Box<Any + 'static>> where
    T: Any, 

Attempt to downcast the box to a concrete type.

Examples

use std::any::Any;

fn print_if_string(value: Box<Any>) {
    if let Ok(string) = value.downcast::<String>() {
        println!("String ({}): {}", string.len(), string);
    }
}

fn main() {
    let my_string = "Hello World".to_string();
    print_if_string(Box::new(my_string));
    print_if_string(Box::new(0i8));
}

fn downcast<T>(self) -> Result<Box<T>, Box<Any + 'static + Send>> where
    T: Any, 

Attempt to downcast the box to a concrete type.

Examples

use std::any::Any;

fn print_if_string(value: Box<Any + Send>) {
    if let Ok(string) = value.downcast::<String>() {
        println!("String ({}): {}", string.len(), string);
    }
}

fn main() {
    let my_string = "Hello World".to_string();
    print_if_string(Box::new(my_string));
    print_if_string(Box::new(0i8));
}

Trait Implementations

impl Deref for Font

type Target = Box<Case>

The resulting type after dereferencing

fn deref(&self) -> &Self::Target

The method called to dereference a value