rpui.alignment source code

1 module rpui.alignment;
2 
3 import std.math;
4 
5 enum RegionAlign {
6     none,
7     left,
8     right,
9     top,
10     bottom,
11     client,
12 }
13 
14 enum Align {
15     none,
16     left,
17     center,
18     right,
19 }
20 
21 enum VerticalAlign {
22     none,
23     top,
24     middle,
25     bottom,
26 }
27 
28 RegionAlign oppositeRegionAlign(in RegionAlign regionAlign) {
29     switch (regionAlign) {
30         case RegionAlign.top:
31             return RegionAlign.bottom;
32 
33         case RegionAlign.bottom:
34             return RegionAlign.top;
35 
36         case RegionAlign.left:
37             return RegionAlign.right;
38 
39         case RegionAlign.right:
40             return RegionAlign.left;
41 
42         default:
43             return regionAlign;
44     }
45 }
46 
47 float alignBox(in Align align_, in float width, in float containerWidth) {
48     switch (align_) {
49         case Align.center:
50             return round((containerWidth - width) * 0.5);
51 
52         case Align.right:
53             return containerWidth - width;
54 
55         default:
56             return 0;
57     }
58 }
59 
60 float verticalAlignBox(in VerticalAlign verticalAlign, in float height, in float containerHeight) {
61     switch (verticalAlign) {
62         case VerticalAlign.bottom:
63             return containerHeight - height;
64 
65         case VerticalAlign.middle:
66             return round((containerHeight - height) * 0.5);
67 
68         default:
69             return 0;
70     }
71 }