Struct gegl::Operation

#[repr(transparent)]
pub struct Operation { /* private fields */ }

GLib type: GObject with reference counted clone semantics.

Implementations

impl Operation

pub fn find_property( operation_type: &str, property_name: &str ) -> Option<ParamSpec>

operation_type

the name of the operation type we want to locate a property on.

property_name

the name of the property we seek.

Returns

The paramspec of the matching property - or NULL if there as no match.

pub fn key(operation_type: &str, key_name: &str) -> Option<GString>

pub fn op_version(op_name: &str) -> Option<GString>

pub fn property_key( operation_type: &str, property_name: &str, property_key_name: &str ) -> Option<GString>

operation_type

the name of the operation type we want to query to property keys for.

property_name

the property to query a key for.

property_key_name

the property mata data key to query

Returns

NULL or a string with the meta-data value for the operation key.

pub fn list_keys(operation_type: &str) -> Vec<GString>

operation_type

the name of the operation type we want to query to property keys for.

Returns

An allocated NULL terminated array of operation-key names. The list should be freed with g_free after use.

pub fn list_properties(operation_type: &str) -> Vec<ParamSpec>

operation_type

the name of the operation type we want to query to properties of.

Returns

An allocated array of GParamSpecs describing the properties of the operation available when a node has operation_type set. The list should be freed with g_free after use.

pub fn list_property_keys( operation_type: &str, property_name: &str ) -> Vec<GString>

operation_type

the name of the operation type we want to query to property keys for.

property_name

the property to query a key for.

Returns

An allocated NULL terminated array of property-key names. The list should be freed with g_free after use.

Trait Implementations

impl Clone for Operation

fn clone(&self) -> Self

Makes a clone of this shared reference.

This increments the strong reference count of the object. Dropping the object will decrement it again.

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

Performs copy-assignment from source.

impl Debug for Operation

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

Formats the value using the given formatter.

impl HasParamSpec for Operation

type ParamSpec = ParamSpecObject

type SetValue = Operation

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, Operation>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for Operation

fn hash<H>(&self, state: &mut H)where H: Hasher,

Hashes the memory address of this object.

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 Operation

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

Comparison for two GObjects.

Compares the memory addresses of the provided objects.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl ParentClassIs for Operation

type Parent = Object

impl<OT: ObjectType> PartialEq<OT> for Operation

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

Equality for two GObjects.

Two GObjects are equal if their memory addresses are equal.

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<OT: ObjectType> PartialOrd<OT> for Operation

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

Partial comparison for two GObjects.

Compares the memory addresses of the provided objects.

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl StaticType for Operation

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for Operation