Trait ItemTree

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pub trait ItemTree {
Show 16 methods    // Required methods
    fn visit_children_item(
        self: Pin<&Self>,
        _1: isize,
        _2: TraversalOrder,
        _3: VRefMut<'_, ItemVisitorVTable>,
    ) -> VisitChildrenResult;
    fn get_item_ref(self: Pin<&Self>, _1: u32) -> Pin<VRef<'_, ItemVTable>>;
    fn get_subtree_range(self: Pin<&Self>, _1: u32) -> IndexRange;
    fn get_subtree(
        self: Pin<&Self>,
        _1: u32,
        _2: usize,
        _3: &mut VWeak<ItemTreeVTable, Dyn>,
    );
    fn get_item_tree(self: Pin<&Self>) -> Slice<'_, ItemTreeNode>;
    fn parent_node(self: Pin<&Self>, _1: &mut ItemWeak);
    fn embed_component(
        self: Pin<&Self>,
        _1: &VWeak<ItemTreeVTable>,
        _2: u32,
    ) -> bool;
    fn subtree_index(self: Pin<&Self>) -> usize;
    fn layout_info(self: Pin<&Self>, _1: Orientation) -> LayoutInfo;
    fn item_geometry(self: Pin<&Self>, _1: u32) -> LogicalRect;
    fn accessible_role(self: Pin<&Self>, _1: u32) -> AccessibleRole;
    fn accessible_string_property(
        self: Pin<&Self>,
        _1: u32,
        _2: AccessibleStringProperty,
        _3: &mut SharedString,
    ) -> bool;
    fn accessibility_action(self: Pin<&Self>, _1: u32, _2: &AccessibilityAction);
    fn supported_accessibility_actions(
        self: Pin<&Self>,
        _1: u32,
    ) -> SupportedAccessibilityAction;
    fn item_element_infos(
        self: Pin<&Self>,
        _1: u32,
        _2: &mut SharedString,
    ) -> bool;
    fn window_adapter(
        self: Pin<&Self>,
        _1: bool,
        _2: &mut Option<WindowAdapterRc>,
    );
}

Expand description

A ItemTree is representing an unit that is allocated together Note: Was generated from the #[vtable] macro on ItemTreeVTable

Required Methods§

Source

fn visit_children_item( self: Pin<&Self>, _1: isize, _2: TraversalOrder, _3: VRefMut<'_, ItemVisitorVTable>, ) -> VisitChildrenResult

Visit the children of the item at index index. Note that the root item is at index 0, so passing 0 would visit the item under root (the children of root). If you want to visit the root item, you need to pass -1 as an index.

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fn get_item_ref(self: Pin<&Self>, _1: u32) -> Pin<VRef<'_, ItemVTable>>

Return a reference to an item using the given index

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fn get_subtree_range(self: Pin<&Self>, _1: u32) -> IndexRange

Return the range of indices below the dynamic ItemTreeNode at index

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fn get_subtree( self: Pin<&Self>, _1: u32, _2: usize, _3: &mut VWeak<ItemTreeVTable, Dyn>, )

Return the ItemTreeRc at subindex below the dynamic ItemTreeNode at index

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fn get_item_tree(self: Pin<&Self>) -> Slice<'_, ItemTreeNode>

Return the item tree that is defined by this ItemTree.

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fn parent_node(self: Pin<&Self>, _1: &mut ItemWeak)

Return the node this ItemTree is a part of in the parent ItemTree.

The return value is an item weak because it can be null if there is no parent. And the return value is passed by &mut because ItemWeak has a destructor Note that the returned value will typically point to a repeater node, which is strictly speaking not an Item at all!

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