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62a8b15f09
To avoid ambiguities regarding the use of FieldOffset, the BuiltinItem proc-macro uses fully-qualified type names now.
36 lines
1.4 KiB
Rust
36 lines
1.4 KiB
Rust
//! This module contains the basic datastructures that are exposed to the C API
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use vtable::*;
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use crate::input::{InputEventResult, MouseEvent};
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use crate::item_tree::{ItemVisitorVTable, TraversalOrder, VisitChildrenResult};
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use crate::layout::LayoutInfo;
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/// A Component is representing an unit that is allocated together
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#[vtable]
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#[repr(C)]
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pub struct ComponentVTable {
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/// Visit the children of the item at index `index`.
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/// Note that the root item is at index 0, so passing 0 would visit the item under root (the children of root).
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/// If you want to visit the root item, you need to pass -1 as an index.
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pub visit_children_item: extern "C" fn(
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core::pin::Pin<VRef<ComponentVTable>>,
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index: isize,
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order: TraversalOrder,
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visitor: VRefMut<ItemVisitorVTable>,
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) -> VisitChildrenResult,
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/// Returns the layout info for this component
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pub layout_info: extern "C" fn(core::pin::Pin<VRef<ComponentVTable>>) -> LayoutInfo,
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/// Will compute the layout of
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pub compute_layout: extern "C" fn(core::pin::Pin<VRef<ComponentVTable>>),
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/// input event
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pub input_event:
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extern "C" fn(core::pin::Pin<VRef<ComponentVTable>>, MouseEvent) -> InputEventResult,
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}
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/// Alias for `vtable::VRef<ComponentVTable>` which represent a pointer to a `dyn Component` with
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/// the associated vtable
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pub type ComponentRef<'a> = vtable::VRef<'a, ComponentVTable>;
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