Enum png::DisposeOp

#[repr(u8)]
pub enum DisposeOp {
    None = 0,
    Background = 1,
    Previous = 2,
}

How to reset buffer of an animated png (APNG) at the end of a frame.

Variants

None = 0

Leave the buffer unchanged.

Background = 1

Clear buffer with the background color.

Previous = 2

Reset the buffer to the state before the current frame.

Implementations

impl DisposeOp

pub fn from_u8(n: u8) -> Option<DisposeOp>

u8 -> Self. Using enum_primitive or transmute is probably the right thing but this will do for now.

Trait Implementations

impl Clone for DisposeOp

fn clone(&self) -> DisposeOp

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DisposeOp

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

Formats the value using the given formatter.

impl Display for DisposeOp

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

Formats the value using the given formatter.

impl PartialEq for DisposeOp

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for DisposeOp

impl Eq for DisposeOp

impl StructuralPartialEq for DisposeOp