Struct AzulPixmap 

pub struct AzulPixmap { /* private fields */ }

A simple RGBA pixel buffer. Replaces tiny_skia::Pixmap.

Implementations

impl AzulPixmap

pub fn new(width: u32, height: u32) -> Option<Self>

Create a new pixmap filled with opaque white.

pub fn fill(&mut self, r: u8, g: u8, b: u8, a: u8)

Fill the entire pixmap with a single color.

pub fn fill_rect( &mut self, x: i32, y: i32, w: i32, h: i32, r: u8, g: u8, b: u8, a: u8, )

Fill a rectangular region with a single color (pixel coordinates).

pub fn data(&self) -> &[u8]

Raw RGBA pixel data.

pub fn data_mut(&mut self) -> &mut [u8]

Mutable raw RGBA pixel data.

pub fn width(&self) -> u32

Width in pixels.

pub fn height(&self) -> u32

Height in pixels.

pub fn clone_pixmap(&self) -> Self

Create a clone of this pixmap (for filter application).

pub fn resize_grow_only( &mut self, new_width: u32, new_height: u32, fill_r: u8, fill_g: u8, fill_b: u8, fill_a: u8, ) -> Option<()>

Resize the pixmap preserving existing content in the top-left corner. New right/bottom strips are filled with the specified color. Only grows — returns None if new dimensions are smaller (caller should realloc).

pub fn resize_reuse( &mut self, new_width: u32, new_height: u32, fill_r: u8, fill_g: u8, fill_b: u8, fill_a: u8, )

Resize the pixmap, reusing existing content for the overlapping region. Works for both growing and shrinking. New areas are filled with the given color.

pub fn encode_png(&self) -> Result<Vec<u8>, String>

Encode to PNG using the png crate.

pub fn decode_png(png_bytes: &[u8]) -> Result<Self, String>

Decode a PNG byte slice into an AzulPixmap.