Struct TextMeasurement 

pub struct TextMeasurement {
    pub size: Size,
    pub line_height: f32,
    pub first_baseline: f32,
    pub line_count: usize,
}

What a string occupies once laid out — the answer DrawScope::measure_text gives, and exactly the box draw_text fills.

Fields

size: Size

Tight block size: the widest line by its total advance, and line_count * line_height tall.

line_height: f32

Baseline-to-baseline distance.

first_baseline: f32

Distance from the top of the block down to the first line’s baseline. Subtract it from a baseline y to get the top-left a _at draw wants.

line_count: usize

Number of laid-out lines. 1 for an empty string.

Implementations

impl TextMeasurement

pub fn empty(line_height: f32, first_baseline: f32) -> Self

The measurement of an empty string: no extent, but still one line’s worth of vertical metrics so callers can lay out an empty label.

Trait Implementations

impl Clone for TextMeasurement

fn clone(&self) -> TextMeasurement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TextMeasurement

impl Debug for TextMeasurement

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

Formats the value using the given formatter.

impl PartialEq for TextMeasurement

fn eq(&self, other: &TextMeasurement) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for TextMeasurement