Struct NSLayoutConstraint

#[repr(C)]
pub struct NSLayoutConstraint {
    pub ptr: Id<Object>,
}

The relationship between two user interface objects that must be satisfied by the constraint-based layout system.

Fields

ptr: Id<Object>

The raw pointer to the Objective-C object.

Implementations

impl NSLayoutConstraint

pub fn active(&self) -> bool

The active state of the constraint.

pub fn set_active(&self, active: bool)

Sets the active state of the constraint.

Arguments

• active - The active state of the constraint.

pub fn activate_constraints(constraints: NSArray<NSLayoutConstraint>)

Activates each constraint in the specified array.

Arguments

• constraints - The array of constraints to activate.

pub fn deactivate_constraints(constraints: NSArray<NSLayoutConstraint>)

Deactivates each constraint in the specified array.

Arguments

• constraints - The array of constraints to deactivate.

Methods from Deref<Target = Object>

pub fn class(&self) -> &Class

Returns the class of self.

pub unsafe fn get_ivar<T>(&self, name: &str) -> &T

where T: Encode,

Returns a reference to the ivar of self with the given name. Panics if self has no ivar with the given name. Unsafe because the caller must ensure that the ivar is actually of type T.

pub unsafe fn get_mut_ivar<T>(&mut self, name: &str) -> &mut T

where T: Encode,

Returns a mutable reference to the ivar of self with the given name. Panics if self has no ivar with the given name. Unsafe because the caller must ensure that the ivar is actually of type T.

pub unsafe fn set_ivar<T>(&mut self, name: &str, value: T)

where T: Encode,

Sets the value of the ivar of self with the given name. Panics if self has no ivar with the given name. Unsafe because the caller must ensure that the ivar is actually of type T.

Trait Implementations

impl Clone for NSLayoutConstraint

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NSLayoutConstraint

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

Formats the value using the given formatter.

impl Deref for NSLayoutConstraint

type Target = Object

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for NSLayoutConstraint

fn deref_mut(&mut self) -> &mut Object

Mutably dereferences the value.

impl Display for NSLayoutConstraint

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

Formats the value using the given formatter.

impl Encode for NSLayoutConstraint

fn encode() -> Encoding

Returns the Objective-C type encoding for Self.

impl FromId for NSLayoutConstraint

unsafe fn from_id(ptr: id) -> Self

Returns Self representation of the object.

impl Hash for NSLayoutConstraint

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 INSLayoutConstraint for NSLayoutConstraint

fn p_active(&self) -> bool

The active state of the constraint.

fn p_set_active(&self, active: bool)

Sets the active state of the constraint.

fn m_activate_constraints(constraints: NSArray<NSLayoutConstraint>)

Activates each constraint in the specified array.

fn m_deactivate_constraints(constraints: NSArray<NSLayoutConstraint>)

Deactivates each constraint in the specified array.

impl PNSObject for NSLayoutConstraint

fn m_class<'a>() -> &'a Class

Returns the class object for the receiver’s class.

fn m_self(&self) -> id

Returns the receiver.

fn m_new() -> Self

where Self: Sized + FromId,

Allocates a new instance of the receiving class, sends it an init message, and returns the initialized object.

fn m_alloc() -> Self

where Self: Sized + FromId,

Returns a new instance of the receiving class.

fn m_initialize()

Initializes the class before it receives its first message.

fn ip_superclass<'a>() -> Option<&'a Class>

Returns the class object for the receiver’s superclass.

fn m_is_equal(&self, object: &Self) -> bool

Returns a Boolean value that indicates whether the receiver and a given object are equal.

fn p_hash(&self) -> UInt

Returns an integer that can be used as a table address in a hash table structure.

fn m_is_kind_of_class(&self, class: Class) -> bool

Returns a Boolean value that indicates whether the receiver is an instance of given class or an instance of any class that inherits from that class.

fn m_is_member_of_class(&self, class: Class) -> bool

Returns a Boolean value that indicates whether the receiver is an instance of a given class.

fn m_responds_to_selector(&self, selector: Sel) -> bool

Returns a Boolean value that indicates whether the receiver implements or inherits a method that can respond to a specified message.

fn m_conforms_to_protocol(&self, protocol: Protocol) -> bool

Returns a Boolean value that indicates whether the receiver conforms to a given protocol.

fn p_description(&self) -> NSString

A textual representation of the receiver.

fn p_debug_description(&self) -> NSString

A textual representation of the receiver to use with a debugger.

fn m_perform_selector(&self, selector: Sel) -> id

Sends a specified message to the receiver and returns the result of the message.

fn m_perform_selector_with_object(&self, selector: Sel, with_object: id) -> id

Sends a message to the receiver with an object as the argument.

fn m_is_proxy(&self) -> bool

Returns a Boolean value that indicates whether the receiver does not descend from NSObject.

impl ToId for NSLayoutConstraint

fn to_id(self) -> id

Returns id representation of the object.