polyhorn_layout::algorithm

Trait Algorithm

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pub trait Algorithm {
    type Node: Copy + Clone + Hash + Eq;

    // Required methods
    fn new() -> Self;
    fn new_node(
        &mut self,
        style: ViewStyle,
        children: &[Self::Node],
    ) -> Self::Node;
    fn new_leaf(&mut self, style: ViewStyle, measure: MeasureFunc) -> Self::Node;
    fn add_child(&mut self, parent: Self::Node, child: Self::Node);
    fn remove_child(&mut self, parent: Self::Node, child: Self::Node);
    fn child_count(&self, parent: Self::Node) -> usize;
    fn remove(&mut self, node: Self::Node);
    fn set_style(&mut self, node: Self::Node, style: ViewStyle);
    fn set_measure(&mut self, node: Self::Node, measure: MeasureFunc);
    fn compute_layout(&mut self, node: Self::Node, size: Size<Dimension<f32>>);
    fn layout(&self, node: Self::Node) -> Layout;
}

Required Associated Types§

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type Node: Copy + Clone + Hash + Eq

Required Methods§

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fn new() -> Self

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fn new_node(&mut self, style: ViewStyle, children: &[Self::Node]) -> Self::Node

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fn new_leaf(&mut self, style: ViewStyle, measure: MeasureFunc) -> Self::Node

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fn add_child(&mut self, parent: Self::Node, child: Self::Node)

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fn remove_child(&mut self, parent: Self::Node, child: Self::Node)

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fn child_count(&self, parent: Self::Node) -> usize

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fn remove(&mut self, node: Self::Node)

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fn set_style(&mut self, node: Self::Node, style: ViewStyle)

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fn set_measure(&mut self, node: Self::Node, measure: MeasureFunc)

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fn compute_layout(&mut self, node: Self::Node, size: Size<Dimension<f32>>)

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fn layout(&self, node: Self::Node) -> Layout

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§