Struct theme_parser::render::pff2::Bitmap

pub struct Bitmap { /* private fields */ }

A bitmap that can be used to query pixel data in a PFF2 Glyph.

There are 2 ways of querying pixels:

• Using Self::pixel()

let bitmap = Bitmap::new(8, 1, &[0b00000001])?;

let pixel = bitmap.pixel(7, 0)?;
assert_eq!(pixel, true);

• Using an iterator

let bitmap = Bitmap::default();

for row in bitmap {
    for pixel in row {
        print!("{}", if pixel { "##" } else { "  " });
    }
}

Implementations

impl Bitmap

pub fn byte_count_from_size(width: usize, height: usize) -> usize

Calculates the length of the bitmap in bytes from the dimentions of the bitmap in pixels

pub fn new(width: usize, height: usize, bitmap: &[u8]) -> Option<Self>

Constructs self by wrapping the bitmap slice in a OwnedSlice and verifying that it’s length is exactly Self::byte_count_from_size.

pub fn pixel(&self, x: usize, y: usize) -> Option<bool>

Returns Some(true) if the pixel is filled, Some(false) if the pixel if transparent, None if out of bounds.

pub fn width(&self) -> usize

Bitmap width (line length)

pub fn height(&self) -> usize

Bitmap height (number of lines)

pub fn iter(&self) -> BitmapIter

Creates an iter over self

Trait Implementations

impl Clone for Bitmap

fn clone(&self) -> Bitmap

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Bitmap

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

Formats the value using the given formatter.

impl Default for Bitmap

fn default() -> Self

Returns the “default value” for a type.

impl IntoIterator for &Bitmap

type IntoIter = BitmapIter

Which kind of iterator are we turning this into?

type Item = BitmapRowIter

The type of the elements being iterated over.

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl IntoIterator for Bitmap

type IntoIter = BitmapIter

Which kind of iterator are we turning this into?

type Item = BitmapRowIter

The type of the elements being iterated over.

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl PartialEq for Bitmap

fn eq(&self, other: &Bitmap) -> bool

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Eq for Bitmap

impl StructuralEq for Bitmap

impl StructuralPartialEq for Bitmap