rules

type Editor struct {
	// contains filtered or unexported fields
}

type Host interface {
	Theme() *theme.Theme
	Size() (width, height int)
	// Line is the shared edit line text rows are typed in.
	Line() *lineedit.Line
	// Close closes the open overlay.
	Close()
	// Sheet is the sheet whose rules are edited.
	Sheet() *sheet.Sheet
	// Selection is the range a new rule applies to.
	Selection() sheet.Rect
	// SaveFormat and SaveValidation store rule i (-1 adds one), as the
	// commands macros record do, reporting why they couldn't.
	SaveFormat(i int, f sheet.CondFormat) error
	SaveValidation(i int, v sheet.Validation) error
	// Reworked follows a rule removed or moved: the file is modified,
	// and a macro being recorded notes what it can't replay.
	Reworked()
	// Slot is the terminal's color for an ANSI slot, for color scales.
	Slot(i int) color.Color
}