Enum gif::Extension

#[repr(u8)]
pub enum Extension {
    Text,
    Control,
    Comment,
    Application,
}

[−] Expand description

Known GIF extension labels.

These are extensions which may be interpreted by the library and to which a specification with the internal data layout is known.

Variants

Text

[−] Expand description

Plain Text extension.

This instructs the decoder to render a text as characters in a grid of cells, in a mono-spaced font of its choosing. This is seldom actually implemented and ignored by ImageMagick. The color is always taken from the global table which further complicates any use. No real information on the frame sequencing of this block is available in the standard.

Control

[−] Expand description

Control extension.

Comment

[−] Expand description

Comment extension.

Application

[−] Expand description

Application extension.

See ImageMagick for an idea of commonly recognized extensions.

Implementations

impl Extension[−]

pub fn from_u8(n: u8) -> Option<Extension>[−]

Converts u8 to a Extension if it is known.

Trait Implementations

impl Clone for Extension[+]

[+] Show hidden undocumented items

fn clone(&self) -> Extension[−]

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Copy for Extension

impl Debug for Extension[+]

[+] Show hidden undocumented items

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

Formats the value using the given formatter.

impl Eq for Extension

impl From<Extension> for AnyExtension[+]

[+] Show hidden undocumented items

fn from(ext: Extension) -> Self[−]

Performs the conversion.

impl PartialEq<Extension> for Extension[+]

[+] Show hidden undocumented items

fn eq(&self, other: &Extension) -> bool[−]

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

#[must_use]

pub fn ne(&self, other: &Rhs) -> bool[−]

This method tests for !=.

impl StructuralEq for Extension

impl StructuralPartialEq for Extension