Struct HostCopies 

pub struct HostCopies(/* private fields */);

While held, every crate::app::EmbeddedApp drawn on this thread is drawn for a host that presents each frame over the pixels it last presented and can move them, as crate::app::EmbeddedApp::set_accepts_scroll_copies says; an app that learned so keeps handing out copies, which a host that cannot make them repaints where they land.

Implementations

impl HostCopies

pub fn begin(copies: bool) -> HostCopies

For a host whose target has one pixel per unit of its scene.

pub fn begin_scaled(copies: bool, device_per_unit: f64) -> HostCopies

For a host whose target has device_per_unit pixels per unit of its scene (a display at 200 % has 2): an app plans its copies in those pixels, so a step of half a unit there is a whole pixel and copies.

Trait Implementations

impl Drop for HostCopies

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.