Struct druid::piet::cairo::glib::Class

pub struct Class<T>(_)
where
         T: IsClass;

Class struct of type T.

Implementations

impl Class<Object>

pub fn has_property(&self, property_name: &str, type_: Option<Type>) -> bool

Check if the object class has a property property_name of the given type_.

If no type is provided then only the existence of the property is checked.

pub fn property_type(&self, property_name: &str) -> Option<Type>

Get the type of the property property_name of this object class.

This returns None if the property does not exist.

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

Get the ParamSpec of the property property_name of this object class.

pub fn list_properties(&self) -> PtrSlice<ParamSpec>

Return all ParamSpec of the properties of this object class.

impl<T> Class<T>where T: IsClass,

pub fn type_(&self) -> Type

Get the type id for this class.

This is not equivalent to T::static_type() but is the type of the subclass of T where this class belongs to.

pub fn upcast_ref<U>(&self) -> &Class<U>where U: IsClass, T: IsA<U>,

Casts this class to a reference to a parent type’s class.

pub fn upcast_ref_mut<U>(&mut self) -> &mut Class<U>where U: IsClass, T: IsA<U>,

Casts this class to a mutable reference to a parent type’s class.

pub fn downcast_ref<U>(&self) -> Option<&Class<U>>where U: IsClass + IsA<T>,

Casts this class to a reference to a child type’s class or fails if this class is not implementing the child class.

pub fn downcast_ref_mut<U>(&mut self) -> Option<&mut Class<U>>where U: IsClass + IsA<T>,

Casts this class to a mutable reference to a child type’s class or fails if this class is not implementing the child class.

pub fn from_type(type_: Type) -> Option<ClassRef<'static, T>>

Gets the class struct for Self of type_.

This will return None if type_ is not a subclass of Self.

pub fn parent(&self) -> Option<ClassRef<'_, T>>

Gets the parent class struct, if any.

Trait Implementations

impl<T> AsMut<<T as ObjectType>::GlibClassType> for Class<T>where T: IsClass,

fn as_mut(&mut self) -> &mut <T as ObjectType>::GlibClassType

Converts this type into a mutable reference of the (usually inferred) input type.

impl<T> AsRef<<T as ObjectType>::GlibClassType> for Class<T>where T: IsClass,

fn as_ref(&self) -> &<T as ObjectType>::GlibClassType

Converts this type into a shared reference of the (usually inferred) input type.

impl<T> Deref for Class<T>where T: ParentClassIs,

type Target = Class<<T as ParentClassIs>::Parent>

The resulting type after dereferencing.

fn deref(&self) -> &<Class<T> as Deref>::Target

Dereferences the value.

impl<T> DerefMut for Class<T>where T: ParentClassIs,

fn deref_mut(&mut self) -> &mut <Class<T> as Deref>::Target

Mutably dereferences the value.

impl ObjectClassSubclassExt for Class<Object>

fn override_signal_class_handler<F>(&mut self, name: &str, class_handler: F)where F: Fn(&SignalClassHandlerToken, &[Value]) -> Option<Value> + Send + Sync + 'static,

impl<T> Send for Class<T>where T: IsClass,

impl<T> Sync for Class<T>where T: IsClass,