Enum png::DisposeOp

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

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

Variants

None

Leave the buffer unchanged.

Background

Clear buffer with the background color.

Previous

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<DisposeOp> 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 StructuralEq for DisposeOp

impl StructuralPartialEq for DisposeOp