Struct LwRectangle 

pub struct LwRectangle<T, U> {
    pub top_left: LwPoint<T>,
    pub size: LwSize<U>,
}

Lightweight rectangle type with configurable coordinate and dimension types.

This struct represents a 2D rectangle with a top-left point and size, using configurable integer types for coordinates and dimensions. It’s designed to be more memory-efficient than standard embedded_graphics::Rectangle for embedded systems.

Type Parameters

• T - The coordinate type for the top-left point (typically i8 or i16)
• U - The dimension type for the size (typically u8 or u16)

Example

use matrix_gui::prelude::*;

// Create a rectangle
let rect = LwRectangle::new(
    LwPoint::new(10, 20),
    LwSize::new(100, 200)
);

// Convert from embedded_graphics Rectangle
let eg_rect = embedded_graphics::primitives::Rectangle::new(
    embedded_graphics::geometry::Point::new(10, 20),
    embedded_graphics::geometry::Size::new(100, 200)
);
let lw_rect: LwRectangle<i16, u16> = eg_rect.into();

Fields

top_left: LwPoint<T>

The top-left corner of the rectangle.

size: LwSize<U>

The size of the rectangle.

Implementations

impl<T, U> LwRectangle<T, U>

where T: Copy + Clone + Eq + PartialEq + Debug + Default, U: Copy + Clone + Eq + PartialEq + Debug + Default,

pub const fn new(top_left: LwPoint<T>, size: LwSize<U>) -> Self

Creates a new LwRectangle with the specified top-left point and size.

Arguments

• top_left - The top-left corner point.
• size - The size of the rectangle.

Returns

A new LwRectangle instance.

impl LwRectangle<i16, u16>

pub fn center_scale( &self, horizontal_percent: u16, vertical_percent: u16, ) -> Self

Scales the rectangle around its center by the given percentage.

Arguments

• percent - The percentage to scale by (100% means no change). 200% means double the size, 50% means half the size, etc.

pub fn delta_resize(&self, delta: DeltaResize) -> Self

Resizes the rectangle using the specified resize delta.

pub fn move_by(&self, dx: i16, dy: i16) -> Self

Moves the rectangle by the specified amount.

pub fn rectangle(&self) -> Rectangle

Converts the LwRectangle to an embedded_graphics::Rectangle.

pub fn resized( &self, width: u16, height: u16, anchor_point: AnchorPoint, ) -> Self

Resizes the rectangle to the specified width and height, using the given anchor point.

Trait Implementations

impl<T: Clone, U: Clone> Clone for LwRectangle<T, U>

fn clone(&self) -> LwRectangle<T, U>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug, U: Debug> Debug for LwRectangle<T, U>

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

Formats the value using the given formatter.

impl<T: Default, U: Default> Default for LwRectangle<T, U>

fn default() -> LwRectangle<T, U>

Returns the “default value” for a type.

impl From<LwRectangle<i16, u16>> for Rectangle

Converts LwRectangle<i16, u16> to embedded_graphics::Rectangle.

fn from(lw_rect: LwRectangle<i16, u16>) -> Self

Converts to this type from the input type.

impl From<LwRectangle<i8, u8>> for Rectangle

Converts LwRectangle<i8, u8> to embedded_graphics::Rectangle.

fn from(lw_rect: LwRectangle<i8, u8>) -> Self

Converts to this type from the input type.

impl From<Rectangle> for LwRectangle<i16, u16>

Converts an embedded_graphics::Rectangle to LwRectangle<i16, u16> using saturating cast.

fn from(rect: Rectangle) -> Self

Converts to this type from the input type.

impl From<Rectangle> for LwRectangle<i8, u8>

Converts an embedded_graphics::Rectangle to LwRectangle<i8, u8> using saturating cast.

fn from(rect: Rectangle) -> Self

Converts to this type from the input type.

impl<T: PartialEq, U: PartialEq> PartialEq for LwRectangle<T, U>

fn eq(&self, other: &LwRectangle<T, U>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: Copy, U: Copy> Copy for LwRectangle<T, U>

impl<T: Eq, U: Eq> Eq for LwRectangle<T, U>

impl<T, U> StructuralPartialEq for LwRectangle<T, U>