Struct XPathAdjust 

pub struct XPathAdjust {
    pub first_pt: usize,
    pub last_pt: usize,
    pub vert: bool,
    pub x0a: f64,
    pub x0b: f64,
    pub x0: f64,
    pub xma: f64,
    pub xmb: f64,
    pub xm: f64,
    pub x1a: f64,
    pub x1b: f64,
    pub x1: f64,
}

An axis-aligned stroke-adjust hint, derived from a StrokeAdjustHint (see crate::path::stroke) after path transformation.

Matches SplashXPathAdjust in splash/SplashXPath.cc.

Snap-window fields

The three snap windows are open intervals; a coordinate v is replaced by the target only when v ∈ (xa, xb) (strictly inside):

Fields	Meaning
x0a, x0b, x0	Left snap window: coordinate in (x0a, x0b) snaps to x0.
xma, xmb, xm	Mid snap window: coordinate in (xma, xmb) snaps to xm.
x1a, x1b, x1	Right snap window: coordinate in (x1a, x1b) snaps to x1.

Fields

first_pt: usize

First path-point index (inclusive) in the range to adjust.

last_pt: usize

Last path-point index (inclusive) in the range to adjust.

vert: bool

true → adjust the x-coordinate; false → adjust the y-coordinate.

x0a: f64

Left snap window lower bound (adj0 - 0.01).

x0b: f64

Left snap window upper bound (adj0 + 0.01).

x0: f64

Left snap target (rounded adj0).

xma: f64

Mid snap window lower bound (mid - 0.01).

xmb: f64

Mid snap window upper bound (mid + 0.01).

xm: f64

Mid snap target (midpoint of rounded endpoints).

x1a: f64

Right snap window lower bound (adj1 - 0.01).

x1b: f64

Right snap window upper bound (adj1 + 0.01).

x1: f64

Right snap target (rounded_adj1 - 0.01).

Implementations

impl XPathAdjust

pub fn new( first_pt: usize, last_pt: usize, vert: bool, adj0: f64, adj1: f64, adjust_lines: bool, line_pos_i: i32, ) -> Self

Construct an adjust record for two endpoint values adj0 ≤ adj1.

Precondition

adj0 <= adj1. The caller in build_adjusts in xpath.rs guarantees this by passing min/max-reduced values.

adjust_lines and line_pos_i implement the same special-case logic as in SplashXPath constructor: when the two rounded endpoints coincide and adjust_lines is true, the span is expanded to [line_pos_i, line_pos_i + 1].

Trait Implementations

impl Clone for XPathAdjust

fn clone(&self) -> XPathAdjust

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for XPathAdjust

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

Formats the value using the given formatter.