Enum sixtyfps_corelib::item_tree::ItemTreeNode

#[repr(u8)]
pub enum ItemTreeNode<T> {
    Item {
        item: VOffset<T, ItemVTable, AllowPin>,
        children_count: u32,
        children_index: u32,
        parent_index: u32,
    },
    DynamicTree {
        index: usize,
        parent_index: u32,
    },
}

The item tree is an array of ItemTreeNode representing a static tree of items within a component.

Variants

Item

Fields

item: VOffset<T, ItemVTable, AllowPin>

byte offset where we can find the item (from the *ComponentImpl)

children_count: u32

number of children

children_index: u32

index of the first children within the item tree

parent_index: u32

The index of the parent item (not valid for the root)

Static item

DynamicTree

Fields

index: usize

the index which is passed in the visit_dynamic callback.

parent_index: u32

The index of the parent item (not valid for the root)

A placeholder for many instance of item in their own component which are instantiated according to a model.

Implementations

impl<T> ItemTreeNode<T>

pub fn parent_index(&self) -> usize

Trait Implementations

impl<T: Debug> Debug for ItemTreeNode<T>

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

Formats the value using the given formatter.