frame

type Column ¶

type Column struct {
	Width   int
	Surface lipgloss.Color
	Lines   []string
}

Column is one region's content: the lines it drew, the width it was budgeted, and the surface it is drawn on. Lines shorter than Height are padded with blanks; longer ones are clipped.

Surface is the frame's second job, and the reason panels do not paint their own base colour. A panel can only fill the rows it drew; the frame also owns the rows it did NOT draw — the blank padding under a short chat list, the empty-state views that go through lipgloss's own Height, and the whole column in single-panel mode. Painting in one place is what makes "no cell falls through to the terminal's default" true of the screen rather than of most of it.

Panels still paint their exceptions, and those win: cell.Fill reopens the surface before each span's own sequences, so a selected chat row that filled itself sel stays sel underneath a column filled with panel.

type Screen ¶

type Screen struct {
	Layout layout.Layout
	Roles  theme.Roles

	// TopBar and HintBar are already-rendered full-width rows. Empty when
	// the layout says they are not shown.
	TopBar  string
	HintBar string

	// Body columns, left to right. A column with Width 0 is skipped along
	// with its rule.
	ChatList Column
	Thread   Column
	Rail     Column
}

Screen is everything the frame needs to draw.