Struct Layer 

pub struct Layer {
    pub label: String,
    pub pixels: Vec<Rgba>,
    pub width: u32,
    pub height: u32,
    pub opacity: f32,
    pub blend_mode: BlendMode,
    pub visible: bool,
    pub z_order: i32,
}

A compositable image layer with blend settings.

Fields

label: String

pixels: Vec<Rgba>

Pixel data in row-major order (row 0 at index 0).

width: u32

height: u32

opacity: f32

Layer-wide opacity multiplier applied to each pixel’s alpha.

blend_mode: BlendMode

visible: bool

z_order: i32

Compositing order; layers are sorted ascending before compositing.

Implementations

impl Layer

pub fn new(label: impl Into<String>, width: u32, height: u32) -> Self

Create a new, fully transparent layer.

pub fn fill(self, color: Rgba) -> Self

Fill every pixel with color (builder pattern).

pub fn pixel_at(&self, x: u32, y: u32) -> Option<Rgba>

Return the pixel at (x, y), or None if out of bounds.

pub fn set_pixel(&mut self, x: u32, y: u32, color: Rgba) -> bool

Set the pixel at (x, y). Returns true on success.