Struct CGImageMetadataType 

#[repr(transparent)]
pub struct CGImageMetadataType(pub i32);

Available on crate feature CGImageMetadata only.

The XMP type for a CGImageMetadataTag

CGImageMetadataType defines a list of constants used to indicate the type for a CGImageMetadataTag. If you are reading metadata, use the type to determine how to interpret the CGImageMetadataTag’s value. If you are creating a CGImageMetadataTag, use the type to specify how the tag should be serialized in XMP. String types have CFStringRef values, array types have CFArray values, and structure types have CFDictionary values.

CFType of the tag’s value. This is only used when creating a new CGImageMetadataTag - no existing tags should have this value. CFString defaults to kCGImageMetadataTypeString, CFArray defaults to kCGImageMetadataTypeArrayOrdered, and CFDictionary defaults to kCGImageMetadataTypeStructure.

values will be converted to a string.

Serialized in XMP as .

Serialized in XMP as .

are alternates for the same value. Serialized in XMP as .

where all elements are different localized strings for the same value. Serialized in XMP as an alternate array of strings with xml:lang qualifiers.

array elements, fields of a structure may belong to different namespaces.

See also Apple’s documentation

Tuple Fields

0: i32

Implementations

impl CGImageMetadataType

pub const Invalid: Self

pub const Default: Self

pub const String: Self

pub const ArrayUnordered: Self

pub const ArrayOrdered: Self

pub const AlternateArray: Self

pub const AlternateText: Self

pub const Structure: Self

Trait Implementations

impl Clone for CGImageMetadataType

fn clone(&self) -> CGImageMetadataType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CGImageMetadataType

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

Formats the value using the given formatter.

impl Encode for CGImageMetadataType

Available on crate feature objc2 only.

const ENCODING: Encoding = i32::ENCODING

The Objective-C type-encoding for this type.

impl Hash for CGImageMetadataType

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 Ord for CGImageMetadataType

fn cmp(&self, other: &CGImageMetadataType) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for CGImageMetadataType

fn eq(&self, other: &CGImageMetadataType) -> 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 PartialOrd for CGImageMetadataType

fn partial_cmp(&self, other: &CGImageMetadataType) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl RefEncode for CGImageMetadataType

Available on crate feature objc2 only.

const ENCODING_REF: Encoding

The Objective-C type-encoding for a reference of this type.

impl Copy for CGImageMetadataType

impl Eq for CGImageMetadataType

impl StructuralPartialEq for CGImageMetadataType