premium_pixel/
utils.rs

1use core::ops::{Deref, DerefMut};
2
3use crate::Surface;
4
5/// Rotate a surface
6#[derive(Debug)]
7pub struct Rotate<S>(S);
8impl<S> Rotate<S> {
9    /// Rotate by 90 degrees clockwise
10    pub fn by90(surface: S) -> Rotate<S> {
11        Rotate(surface)
12    }
13    /// Rotate by 180 degrees clockwise
14    pub fn by180(surface: S) -> Rotate<Rotate<S>> {
15        Rotate(Rotate(surface))
16    }
17    /// Rotate by 270 degrees clockwise
18    pub fn by270(surface: S) -> Rotate<Rotate<Rotate<S>>> {
19        Rotate(Rotate(Rotate(surface)))
20    }
21}
22impl<S: Surface> Surface for Rotate<S> {
23    fn clear(&mut self) {
24        self.0.clear()
25    }
26    fn height(&self) -> i32 {
27        self.0.width()
28    }
29    fn width(&self) -> i32 {
30        self.0.height()
31    }
32    fn pixel(&mut self, x: i32, y: i32) {
33        self.0.pixel(self.0.width() - 1 - y, x)
34    }
35}
36impl<S> Deref for Rotate<S> {
37    type Target = S;
38    fn deref(&self) -> &Self::Target {
39        &self.0
40    }
41}
42impl<S> DerefMut for Rotate<S> {
43    fn deref_mut(&mut self) -> &mut Self::Target {
44        &mut self.0
45    }
46}
47
48/// This struct implements the Surface trait and can be used to measure the width of text without
49/// drawing anything
50pub struct Measure;
51impl Surface for Measure {
52    fn clear(&mut self) {}
53    fn pixel(&mut self, _x: i32, _y: i32) {}
54    fn height(&self) -> i32 {
55        1000
56    }
57    fn width(&self) -> i32 {
58        1000
59    }
60}
premium_pixel/utils.rs

premium_pixel/
utils.rs
