x-graphics 0.2.1

Graphics framework for X
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120

use std::ops::Mul;

use crate::{geometry::FRect, DefaultMatrix, Float};

pub trait MatrixBackend: Clone + Mul<Self, Output = Self> + Sized {
    fn identity() -> Self
    where
        Self: Sized;
    fn from_row(scx: Float, sky: Float, skx: Float, scy: Float, tx: Float, ty: Float) -> Self
    where
        Self: Sized;
    fn from_translate(x: Float, y: Float) -> Self
    where
        Self: Sized;
    fn from_scale(x: Float, y: Float) -> Self
    where
        Self: Sized;
    fn from_rotate(angle: Float) -> Self
    where
        Self: Sized;
    fn pre_rotate(&mut self, angle: Float);
    fn pre_scale(&mut self, x: Float, y: Float);
    fn pre_translate(&mut self, x: Float, y: Float);
    fn post_rotate(&mut self, angle: Float);
    fn post_scale(&mut self, x: Float, y: Float);
    fn post_translate(&mut self, x: Float, y: Float);
    fn map_rect(&self, rect: FRect) -> FRect;
}

impl<T: MatrixBackend> Default for Matrix<T> {
    fn default() -> Self {
        Self::identity()
    }
}

pub struct Matrix<T: MatrixBackend> {
    pub(crate) backend: T,
}

impl<T: MatrixBackend> Matrix<T> {
    pub fn identity() -> Self {
        Self {
            backend: T::identity(),
        }
    }

    pub fn from_row(scx: Float, sky: Float, skx: Float, scy: Float, tx: Float, ty: Float) -> Self {
        Self {
            backend: T::from_row(scx, sky, skx, scy, tx, ty),
        }
    }

    pub fn from_translate(x: Float, y: Float) -> Self {
        Self {
            backend: T::from_translate(x, y),
        }
    }

    pub fn from_scale(x: Float, y: Float) -> Self {
        Self {
            backend: T::from_scale(x, y),
        }
    }

    pub fn from_rotate(angle: Float) -> Self {
        Self {
            backend: T::from_rotate(angle),
        }
    }

    pub fn pre_rotate(&mut self, angle: Float) {
        self.backend.pre_rotate(angle)
    }

    pub fn pre_scale(&mut self, x: Float, y: Float) {
        self.backend.pre_scale(x, y)
    }

    pub fn pre_translate(&mut self, x: Float, y: Float) {
        self.backend.pre_translate(x, y)
    }

    pub fn post_rotate(&mut self, angle: Float) {
        self.backend.post_rotate(angle)
    }

    pub fn post_scale(&mut self, x: Float, y: Float) {
        self.backend.post_scale(x, y)
    }

    pub fn post_translate(&mut self, x: Float, y: Float) {
        self.backend.post_translate(x, y)
    }

    pub fn map_rect(&self, rect: FRect) -> FRect {
        self.backend.map_rect(rect)
    }
}

impl Matrix<DefaultMatrix> {
    pub fn default_identity() -> Self {
        Self::identity()
    }

    pub fn default_from_row(scx: Float, sky: Float, skx: Float, scy: Float, tx: Float, ty: Float) -> Self {
        Self::from_row(scx, sky, skx, scy, tx, ty)
    }

    pub fn default_from_translate(x: Float, y: Float) -> Self {
        Self::from_translate(x, y)
    }

    pub fn default_from_scale(x: Float, y: Float) -> Self {
        Self::from_scale(x, y)
    }

    pub fn default_from_rotate(angle: Float) -> Self {
        Self::from_rotate(angle)
    }
}