Struct Viewport 

pub struct Viewport {
    pub top_line: u32,
    pub height: u32,
    pub scroll_off: u32,
}

Visible region of a buffer. The host writes top_line and height per render frame; the engine reads to decide where the cursor must land for visibility (cf. scroll_off).

Fields

top_line: u32

height: u32

scroll_off: u32

Trait Implementations

impl Clone for Viewport

fn clone(&self) -> Viewport

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Viewport

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Viewport

fn default() -> Viewport

Returns the “default value” for a type.

impl Hash for Viewport

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Viewport

fn eq(&self, other: &Viewport) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Viewport

impl Eq for Viewport

impl StructuralPartialEq for Viewport