geometry.go RawHistoryFolder

1// Package entity defines domain entities for the browser.
2package entity
3
4// PaneRect represents a pane's screen position and size.
5// Used for geometric navigation to find adjacent panes by position.
6type PaneRect struct {
7	PaneID PaneID
8	X, Y   int // Top-left position relative to workspace container
9	W, H   int // Width and height
10}
11
12// Center returns the center point of the rectangle.
13func (r PaneRect) Center() (cx, cy int) {
14	return r.X + r.W/2, r.Y + r.H/2
15}
16
17// OverlapsVertically returns true if the two rectangles overlap in the Y axis.
18// Used for left/right navigation to prefer panes at the same vertical level.
19func (r PaneRect) OverlapsVertically(other PaneRect) bool {
20	// r spans [r.Y, r.Y+r.H), other spans [other.Y, other.Y+other.H)
21	return r.Y < other.Y+other.H && other.Y < r.Y+r.H
22}
23
24// OverlapsHorizontally returns true if the two rectangles overlap in the X axis.
25// Used for up/down navigation to prefer panes at the same horizontal level.
26func (r PaneRect) OverlapsHorizontally(other PaneRect) bool {
27	// r spans [r.X, r.X+r.W), other spans [other.X, other.X+other.W)
28	return r.X < other.X+other.W && other.X < r.X+r.W
29}