termui

# termui

[<img src="./_assets/demo.gif" alt="demo cast under osx 10.10; Terminal.app; Menlo Regular 12pt.)" width="100%">](./_examples/demo.go)

termui is a cross-platform and fully-customizable terminal dashboard and widget library built on top of [termbox-go](https://github.com/nsf/termbox-go). It is inspired by [blessed-contrib](https://github.com/yaronn/blessed-contrib) and [tui-rs](https://github.com/fdehau/tui-rs) and written purely in Go.

## Note

Please be aware that due to my fluctuating availability, the frequency of updates to this project may not always follow a consistent schedule. I would like to invite potential maintainers to contribute to this project. If you are interested in becoming a maintainer, please do not hesitate to reach out to me.

## Versions

termui is currently compatible with Go 1.15 (as in go.mod) and above (tracking the Debian's [oldstable](https://wiki.debian.org/DebianReleases)). Please use the version-numbered branch as stable release. The new changes will be pushed to master branch first and then merge to version branch.

## Features

- Several premade widgets for common use cases
- Easily create custom widgets
- Position widgets either in a relative grid or with absolute coordinates
- Keyboard, mouse, and terminal resizing events
- Colors and styling

## Installation

### Go modules

It is not necessary to `go get` termui, since Go will automatically manage any imported dependencies for you. Do note that you have to include `/v3` in the import statements as shown in the 'Hello World' example below.

### Dep

Add with `dep ensure -add github.com/gizak/termui`. With Dep, `/v3` should *not* be included in the import statements.

## Hello World

```go
package main

import (
	"log"

	ui "github.com/gizak/termui/v3"
	"github.com/gizak/termui/v3/widgets"
)

func main() {
	if err := ui.Init(); err != nil {
		log.Fatalf("failed to initialize termui: %v", err)
	}
	defer ui.Close()

	p := widgets.NewParagraph()
	p.Text = "Hello World!"
	p.SetRect(0, 0, 25, 5)

	ui.Render(p)

	for e := range ui.PollEvents() {
		if e.Type == ui.KeyboardEvent {
			break
		}
	}
}
```

## Widgets

- [BarChart](./_examples/barchart.go)
- [Canvas](./_examples/canvas.go) (for drawing braille dots)
- [Gauge](./_examples/gauge.go)
- [Image](./_examples/image.go)
- [List](./_examples/list.go)
- [Tree](./_examples/tree.go)
- [Paragraph](./_examples/paragraph.go)
- [PieChart](./_examples/piechart.go)
- [Plot](./_examples/plot.go) (for scatterplots and linecharts)
- [Sparkline](./_examples/sparkline.go)
- [StackedBarChart](./_examples/stacked_barchart.go)
- [Table](./_examples/table.go)
- [Tabs](./_examples/tabs.go)

Run an example with `go run _examples/{example}.go` or run each example consecutively with `make run-examples`.

## Documentation

- [wiki](https://github.com/gizak/termui/wiki)

## Uses

- [dockdash](https://github.com/byrnedo/dockdash)
- [expvarmon](https://github.com/divan/expvarmon)
- [go-ethereum/monitorcmd](https://github.com/et