GridStorage

kas_core::layout

Trait GridStorage 

Source 
pub trait GridStorage:
    Sealed
    + Clone
    + Debug {
    // Required methods
    fn set_dims(&mut self, cols: usize, rows: usize);
    fn widths_and_rules(&mut self) -> (&mut [i32], &mut [SizeRules]);
    fn heights_and_rules(&mut self) -> (&mut [i32], &mut [SizeRules]);

    // Provided methods
    fn width_rules(&mut self) -> &mut [SizeRules] { ... }
    fn height_rules(&mut self) -> &mut [SizeRules] { ... }
    fn widths(&mut self) -> &mut [i32] { ... }
    fn heights(&mut self) -> &mut [i32] { ... }
}
Expand description

Requirements of grid solver storage type

Usually this is set by a crate::layout::GridSolver from crate::Layout::size_rules, then used by crate::Layout::set_rect to divide the assigned rect between children.

It may be useful to access this directly if not solving size rules normally; specifically this allows a different size solver to replace size_rules and influence set_rect.

Note: some implementations allocate when Self::set_dims is first called. It is expected that this method is called before other methods.

Required Methods§

Source

fn set_dims(&mut self, cols: usize, rows: usize)

Set dimension: number of columns and rows

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fn widths_and_rules(&mut self) -> (&mut [i32], &mut [SizeRules])

Access column widths and rules simultaneously

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fn heights_and_rules(&mut self) -> (&mut [i32], &mut [SizeRules])

Access row heights and rules simultaneously

Provided Methods§

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fn width_rules(&mut self) -> &mut [SizeRules]

Access SizeRules for each column

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fn height_rules(&mut self) -> &mut [SizeRules]

Access SizeRules for each row

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fn widths(&mut self) -> &mut [i32]

Access widths for each column

Widths are calculated from rules when set_rect is called. Assigning to widths before set_rect is called only has any effect when the available size exceeds the minimum required (see SizeRules::solve_seq).

Source

fn heights(&mut self) -> &mut [i32]

Access heights for each row

Heights are calculated from rules when set_rect is called. Assigning to heights before set_rect is called only has any effect when the available size exceeds the minimum required (see SizeRules::solve_seq).

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§