Struct druid::piet::cairo::glib::subclass::basic::ClassStruct

pub struct ClassStruct<T>where
    T: ObjectSubclass,{ /* private fields */ }

A basic class struct that does not store any additional data or virtual methods.

Methods from Deref<Target = Class<<T as ObjectSubclass>::Type>>

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.

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

Gets the parent class struct, if any.

Trait Implementations

impl<T> ClassStruct for ClassStruct<T>where T: ObjectSubclass,

type Type = T

Corresponding object subclass type for this class struct.

fn class_init(&mut self)

Override the vfuncs of all parent types.

impl<T> Debug for ClassStruct<T>where T: ObjectSubclass, <<T as ObjectSubclass>::ParentType as ObjectType>::GlibClassType: Debug,

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

Formats the value using the given formatter.

impl<T> Deref for ClassStruct<T>where T: ObjectSubclass,

type Target = Class<<T as ObjectSubclass>::Type>

The resulting type after dereferencing.

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

Dereferences the value.

impl<T> DerefMut for ClassStruct<T>where T: ObjectSubclass,

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

Mutably dereferences the value.