orbtk_utils/
dirty_size.rs

1/// Size with width, height and dirty flag. If the dirty flag is `true`,
2/// layout tasks will handle this objects in its arrange and measure
3/// tasks.
4#[derive(Copy, Clone, PartialEq)]
5pub struct DirtySize {
6    width: f64,
7    height: f64,
8    dirty: bool,
9}
10
11impl Default for DirtySize {
12    fn default() -> Self {
13        DirtySize {
14            width: 0.0,
15            height: 0.0,
16            dirty: true,
17        }
18    }
19}
20
21impl DirtySize {
22    /// Creates a new dirty size with default values.
23    pub fn new() -> Self {
24        DirtySize::default()
25    }
26
27    pub fn width(&self) -> f64 {
28        self.width
29    }
30
31    pub fn set_width(&mut self, width: f64) {
32        if (self.width - width).abs() > std::f64::EPSILON {
33            self.dirty = true;
34        }
35
36        self.width = width;
37    }
38
39    pub fn height(&self) -> f64 {
40        self.height
41    }
42
43    pub fn set_height(&mut self, height: f64) {
44        if (self.height - height).abs() > std::f64::EPSILON {
45            self.dirty = true;
46        }
47
48        self.height = height;
49    }
50
51    pub fn size(&self) -> (f64, f64) {
52        (self.width, self.height)
53    }
54
55    pub fn set_size(&mut self, width: f64, height: f64) {
56        if (self.width - width).abs() > std::f64::EPSILON
57            && (self.height - height).abs() > std::f64::EPSILON
58        {
59            self.dirty = true
60        }
61
62        self.width = width;
63        self.height = height;
64    }
65
66    /// Gets the dirty flag.
67    pub fn dirty(&self) -> bool {
68        self.dirty
69    }
70
71    /// Sets the dirty flag.
72    pub fn set_dirty(&mut self, dirty: bool) {
73        self.dirty = dirty;
74    }
75}
76
77#[cfg(test)]
78mod tests {
79    use crate::prelude::*;
80
81    #[test]
82    fn test_set_width() {
83        let width = 10.0;
84
85        let mut dirty_size = DirtySize::default();
86
87        dirty_size.set_width(width);
88
89        assert!(crate::f64_cmp(dirty_size.width(), width));
90        assert!(dirty_size.dirty());
91    }
92
93    #[test]
94    fn test_set_height() {
95        let height = 10.0;
96
97        let mut dirty_size = DirtySize::default();
98        dirty_size.set_height(height);
99
100        assert!(crate::f64_cmp(dirty_size.height(), height));
101        assert!(dirty_size.dirty());
102    }
103
104    #[test]
105    fn test_set_size() {
106        let size = (10.0, 20.0);
107
108        let mut dirty_size = DirtySize::default();
109
110        dirty_size.set_size(size.0, size.1);
111
112        assert_eq!(dirty_size.size(), size);
113        assert!(dirty_size.dirty());
114    }
115
116    #[test]
117    fn test_set_dirty() {
118        let mut dirty_size = DirtySize::default();
119
120        dirty_size.set_dirty(false);
121
122        assert!(!dirty_size.dirty());
123    }
124}
orbtk_utils/dirty_size.rs

orbtk_utils/
dirty_size.rs
