Struct font::Font
[−]
[src]
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 from Deref<Target=Box<Case>>
fn downcast<T>(self) -> Result<Box<T>, Box<Any + 'static>> where T: Any
1.0.0
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
1.0.0
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)); }