AtomicGo | cursor
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Description
Package cursor contains cross-platform methods to move the terminal cursor in different directions. This package can be used to create interactive CLI tools and games, live charts, algorithm visualizations and other updatable output of any kind.
Special thanks to github.com/k0kubun/go-ansi which this project is based on.
Install
# Execute this command inside your project
go get -u github.com/atomicgo/cursor
// Add this to your imports
import "github.com/atomicgo/cursor"
Usage
func Bottom
func Bottom()
Bottom moves the cursor to the bottom of the terminal. This is done by calculating how many lines were moved by Up and Down.
func ClearLine
func ClearLine()
ClearLine clears the current line and moves the cursor to it's start position.
func ClearLinesDown
func ClearLinesDown(n int)
ClearLinesDown clears n lines downwards from the current position and moves the cursor.
func ClearLinesUp
func ClearLinesUp(n int)
ClearLinesUp clears n lines upwards from the current position and moves the cursor.
func Down
func Down(n int)
Down moves the cursor n lines down relative to the current position.
func DownAndClear
func DownAndClear(n int)
DownAndClear moves the cursor down by n lines, then clears the line.
func Hide
func Hide()
Hide the cursor. Don't forget to show the cursor at least at the end of your application with Show. Otherwise the user might have a terminal with a permanently hidden cursor, until he reopens the terminal.
func HorizontalAbsolute
func HorizontalAbsolute(n int)
HorizontalAbsolute moves the cursor to n horizontally. The position n is absolute to the start of the line.
func Left
func Left(n int)
Left moves the cursor n characters to the left relative to the current position.
func Move
func Move(x, y int)
Move moves the cursor relative by x and y.
func Right
func Right(n int)
Right moves the cursor n characters to the right relative to the current position.
func Show
func Show()
Show the cursor if it was hidden previously. Don't forget to show the cursor at least at the end of your application. Otherwise the user might have a terminal with a permanently hidden cursor, until he reopens the terminal.
func StartOfLine
func StartOfLine()
StartOfLine moves the cursor to the start of the current line.
func StartOfLineDown
func StartOfLineDown(n int)
StartOfLineDown moves the cursor down by n lines, then moves to cursor to the start of the line.
func StartOfLineUp
func StartOfLineUp(n int)
StartOfLineUp moves the cursor up by n lines, then moves to cursor to the start of the line.
func Up
func Up(n int)
Up moves the cursor n lines up relative to the current position.
func UpAndClear
func UpAndClear(n int)
UpAndClear moves the cursor up by n lines, then clears the line.
type Area
type Area struct {
}
Area displays content which can be updated on the fly. You can use this to create live output, charts, dropdowns, etc.
func NewArea
func NewArea() Area
NewArea returns a new Area.
func (*Area) Clear
func (area *Area) Clear()
Clear clears the content of the Area.
func (*Area) Update
func (area *Area) Update(content string)
Update overwrites the content of the Area.
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