Struct LayoutRecord 

pub struct LayoutRecord {
    pub name: String,
    pub constraints: Vec<Constraint>,
    pub available_size: u16,
    pub computed_sizes: Vec<u16>,
    pub direction: Direction,
    pub alignment: Alignment,
    pub margin: Sides,
    pub gap: u16,
    pub input_area: Rect,
    pub result_rects: Vec<Rect>,
    pub solve_time: Option<Duration>,
    pub parent_index: Option<usize>,
}

A record of a single layout solve operation.

Fields

name: String

User-provided name for identification.

constraints: Vec<Constraint>

The constraints that were solved.

available_size: u16

Total available size before solving.

computed_sizes: Vec<u16>

Computed sizes for each constraint.

direction: Direction

Layout direction.

alignment: Alignment

Alignment mode.

margin: Sides

Margin applied before solving.

gap: u16

Gap between items.

input_area: Rect

The input area.

result_rects: Vec<Rect>

The resulting rectangles.

solve_time: Option<Duration>

Time taken to solve (if measured).

parent_index: Option<usize>

Parent record index (for nested layouts).

Implementations

impl LayoutRecord

pub fn new(name: impl Into<String>) -> Self

Create a new layout record.

pub fn has_overflow(&self) -> bool

Check if the total computed size exceeds available space (overflow).

pub fn has_underflow(&self) -> bool

Check if significant space remains unused (underflow).

Returns true if more than 20% of available space is unused.

pub fn utilization(&self) -> f32

Percentage of available space used.

pub fn summary(&self) -> String

Generate a human-readable summary.

pub fn to_jsonl(&self) -> String

Generate a JSONL-formatted record for structured logging.

Returns a single-line JSON object suitable for appending to a log file.

Trait Implementations

impl Clone for LayoutRecord

fn clone(&self) -> LayoutRecord

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LayoutRecord

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

Formats the value using the given formatter.