Struct TextMeasure 

pub struct TextMeasure {
    pub box_width: u32,
    pub box_height: u32,
    pub decoration_margin: u32,
    pub content: [f32; 4],
    pub ink: Option<[f32; 4]>,
    pub line_count: u32,
}

Where a request’s text lies, without drawing it (TextRasterizer::measure): rectangles as [left, top, right, bottom] in pixels from the layout box’s top-left corner, y down. The texture TextRasterizer::rasterize draws for the request holds that corner at (TextTexture::layout_x, TextTexture::layout_y).

Fields

box_width: u32

The layout box’s width in whole pixels: the width the request wraps at, else its widest line, rounded up.

box_height: u32

The layout box’s height in whole pixels: every line’s em box, rounded up.

decoration_margin: u32

TextRasterRequest::decoration_margin.

content: [f32; 4]

From the start of the line that starts farthest left to the end of the one that ends farthest right, the box’s height, grown by the decoration margin as the box is. It moves only as the lines’ advances do, not as glyphs with more or less ink are typed.

ink: Option<[f32; 4]>

What the text draws: each glyph’s outline (its curves, not their control points) or color form, the outline’s band around them, and the background’s boxes. Every pixel the raster gives any alpha meets it, and it reaches at most a pixel past them, or past a COLR glyph’s outlines and clip boxes, which may hold a little more than it paints. None when the text draws nothing.

line_count: u32

Number of laid-out lines.

Trait Implementations

impl Clone for TextMeasure

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TextMeasure

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

Formats the value using the given formatter.

impl PartialEq for TextMeasure

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TextMeasure