ribir_types 0.4.0-alpha.63

A non-intrusive declarative GUI framework, to build modern native/wasm cross-platform applications.
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
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148

use crate::{INFINITY_SIZE, Size, ZERO_SIZE};

/// Boundary constraints for size-based layout.
#[derive(Debug, Clone, PartialEq, Copy)]
pub struct BoxClamp {
  pub min: Size,
  pub max: Size,
}

impl BoxClamp {
  pub const UNLIMITED: BoxClamp = BoxClamp { min: ZERO_SIZE, max: INFINITY_SIZE };
  /// Expand horizontally to fill available width
  pub const EXPAND_X: BoxClamp =
    BoxClamp { min: Size::new(f32::INFINITY, 0.), max: Size::new(f32::INFINITY, f32::INFINITY) };
  /// Expand vertically to fill available height
  pub const EXPAND_Y: BoxClamp =
    BoxClamp { min: Size::new(0., f32::INFINITY), max: Size::new(f32::INFINITY, f32::INFINITY) };
  /// Expand both horizontally and vertically to fill available space
  pub const EXPAND_BOTH: BoxClamp = BoxClamp { min: INFINITY_SIZE, max: INFINITY_SIZE };

  /// clamp use fixed width and unfixed height
  pub const fn fixed_width(width: f32) -> Self {
    BoxClamp { min: Size::new(width, 0.), max: Size::new(width, f32::INFINITY) }
  }

  /// clamp use fixed height and unfixed width
  pub const fn fixed_height(height: f32) -> Self {
    BoxClamp { min: Size::new(0., height), max: Size::new(f32::INFINITY, height) }
  }

  /// clamp use fixed size
  pub const fn fixed_size(size: Size) -> Self { BoxClamp { min: size, max: size } }

  pub const fn min_width(width: f32) -> Self {
    let mut clamp = Self::UNLIMITED;
    clamp.min.width = width;
    clamp
  }

  pub const fn min_height(height: f32) -> Self {
    let mut clamp = Self::UNLIMITED;
    clamp.min.height = height;
    clamp
  }

  pub const fn min_size(min: Size) -> Self {
    Self { min, max: Size::new(f32::INFINITY, f32::INFINITY) }
  }

  pub const fn max_size(max: Size) -> Self { Self { min: ZERO_SIZE, max } }

  pub const fn max_height(height: f32) -> Self {
    Self { min: ZERO_SIZE, max: Size::new(f32::INFINITY, height) }
  }

  pub const fn max_width(width: f32) -> Self {
    Self { min: ZERO_SIZE, max: Size::new(width, f32::INFINITY) }
  }

  pub const fn with_min_size(mut self, size: Size) -> Self {
    self.min = Size::new(size.width.min(self.max.width), size.height.min(self.max.height));
    self
  }

  pub const fn with_max_size(mut self, size: Size) -> Self {
    self.max = Size::new(size.width.max(self.min.width), size.height.max(self.min.height));
    self
  }

  pub const fn with_fixed_height(mut self, height: f32) -> Self {
    self.min.height = height;
    self.max.height = height;
    self
  }

  pub const fn with_fixed_width(mut self, width: f32) -> Self {
    self.min.width = width;
    self.max.width = width;
    self
  }

  pub const fn with_max_width(mut self, width: f32) -> Self {
    self.max.width = width.max(self.min.width);
    self
  }

  pub const fn with_max_height(mut self, height: f32) -> Self {
    self.max.height = height.max(self.min.height);
    self
  }

  pub const fn with_min_width(mut self, width: f32) -> Self {
    self.min.width = width.min(self.max.width);
    self
  }

  pub const fn with_min_height(mut self, height: f32) -> Self {
    self.min.height = height.min(self.max.height);
    self
  }

  /// Calculates an estimated container width during child layout phases when
  /// parent width is unknown.
  pub const fn container_width(&self, child_width: f32) -> f32 {
    let min = self.min.width;
    let max = self.max.width;
    if max.is_finite() { max } else { min.max(child_width) }
  }

  /// Calculates an estimated container height during child layout phases when
  /// parent height is unknown.
  pub const fn container_height(&self, child_height: f32) -> f32 {
    let min = self.min.height;
    let max = self.max.height;
    if max.is_finite() { max } else { min.max(child_height) }
  }

  #[inline]
  pub fn clamp(self, size: Size) -> Size { size.clamp(self.min, self.max) }

  #[inline]
  pub fn expand(mut self) -> Self {
    self.max = INFINITY_SIZE;
    self
  }

  #[inline]
  pub fn loose(mut self) -> Self {
    self.min = ZERO_SIZE;
    self
  }

  pub fn free_width(mut self) -> Self {
    self.min.width = 0.0;
    self.max.width = f32::INFINITY;
    self
  }

  pub fn free_height(mut self) -> Self {
    self.min.height = 0.0;
    self.max.height = f32::INFINITY;
    self
  }
}

impl Default for BoxClamp {
  fn default() -> Self { Self::UNLIMITED }
}