bdf_reader/
bitmap.rs

1use crate::BoundingBox;
2use bit_vec::BitVec;
3use thiserror::Error;
4
5#[derive(Debug, Error)]
6#[error("Index ({0}, {1}) Out Of Bounds")]
7#[non_exhaustive]
8pub struct OutOfBounds(usize, usize);
9
10#[derive(Clone, Copy, Debug)]
11pub struct Bitmap<'a> {
12	pub(crate) data: &'a Vec<BitVec>,
13	pub(crate) bbox: BoundingBox
14}
15
16impl Bitmap<'_> {
17	pub fn width(self) -> usize {
18		self.bbox.width as usize
19	}
20
21	pub fn height(self) -> usize {
22		self.bbox.height as usize
23	}
24
25	pub fn baseline(self) -> usize {
26		(self.bbox.height as i32 - 1 + self.bbox.offset_y) as usize
27	}
28
29	pub fn get(self, x: usize, y: usize) -> Result<bool, OutOfBounds> {
30		let row = self.data.get(y).ok_or(OutOfBounds(x, y))?;
31		row.get(x).ok_or(OutOfBounds(x, y))
32	}
33
34	pub fn ascii_art(self) -> String {
35		let mut buf = String::new();
36		for y in 0 .. self.height() {
37			for x in 0 .. self.width() {
38				if self.get(x, y).unwrap() {
39					buf += "##";
40				} else {
41					buf += "..";
42				}
43			}
44			buf += "\n";
45
46			if y == self.baseline() {
47				for _ in 0 .. self.width() {
48					buf += "--";
49				}
50				buf += "\n";
51			}
52		}
53		buf
54	}
55}
bdf_reader/bitmap.rs

bdf_reader/
bitmap.rs
