Struct layout::core::geometry::Position

pub struct Position { /* private fields */ }

Represents the size, location and centerpoint of a shape. We align shapes along their center points, and have edges directed at the center. Shapes like Box and Circle have their center point in the middle, but labels have their center point in one of the sides to make sure that edges don’t obscure the text. The halo is the gap around the shape where nothing can be placed and it is applied symmetrically to the sides.

This struct has fields that represent the following points:

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| _____________ | | | | | | | | | | | M <––|—|–the middle of the shape, in absolute coordinates. | | C <-|—|–the center point, saved as delta, relative to M. | |_____________| | | ^—|— the size of the shape. |____________________| <—– size + halo.

Implementations

impl Position

pub fn new(middle: Point, size: Point, center: Point, halo: Point) -> Self

pub fn distance_to_left(&self, with_halo: bool) -> f64

pub fn distance_to_right(&self, with_halo: bool) -> f64

pub fn left(&self, with_halo: bool) -> f64

pub fn right(&self, with_halo: bool) -> f64

pub fn top(&self, with_halo: bool) -> f64

pub fn bottom(&self, with_halo: bool) -> f64

pub fn bbox(&self, with_halo: bool) -> (Point, Point)

pub fn center(&self) -> Point

Returns the center of the shape in absolute coordinates.

pub fn middle(&self) -> Point

Returns the middle of the shape. (not center!)

pub fn size(&self, with_halo: bool) -> Point

pub fn in_x_range(&self, range: (f64, f64), with_halo: bool) -> bool

\return True if the box fits within the x ranges of \p range.

pub fn set_size(&mut self, size: Point)

pub fn set_new_center_point(&mut self, center: Point)

Update the center point for the shape. This is expressed as the delta from the center of mass (middle-point).

pub fn move_to(&mut self, p: Point)

pub fn align_to_top(&mut self, y: f64)

pub fn align_to_left(&mut self, x: f64)

pub fn align_to_right(&mut self, x: f64)

pub fn translate(&mut self, d: Point)

pub fn align_x(&mut self, x: f64, to_left: bool)

Align the shape to the line \p x, to the right or the left, depending on \p to_left.

pub fn set_x(&mut self, x: f64)

pub fn set_y(&mut self, y: f64)

pub fn transpose(&mut self)

Trait Implementations

impl Clone for Position

fn clone(&self) -> Position

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Position

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

Formats the value using the given formatter.

impl Copy for Position