types.go RawHistoryFolder

1package ports
2
3// WindowID identifies a window.
4type WindowID uint64
5
6// Rect is a pixel rectangle.
7type Rect struct{ X, Y, W, H int }
8
9// Sides is a set of window sides.
10type Sides uint8
11
12const (
13	SideLeft Sides = 1 << iota
14	SideRight
15	SideTop
16	SideBottom
17	SideAll = SideLeft | SideRight | SideTop | SideBottom
18)
19
20// Inset shrinks r by b on each side in s.
21func (r Rect) Inset(s Sides, b int) Rect {
22	b = min(max(b, 0), r.W/2, r.H/2)
23	if s&SideLeft != 0 {
24		r.X, r.W = r.X+b, r.W-b
25	}
26	if s&SideRight != 0 {
27		r.W -= b
28	}
29	if s&SideTop != 0 {
30		r.Y, r.H = r.Y+b, r.H-b
31	}
32	if s&SideBottom != 0 {
33		r.H -= b
34	}
35	return r
36}