# 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.

## Features

- Built in widget implementations for common use cases
- Utilities to create custom widgets
- A grid layout for relative widget positioning
- Mouse support
- Event handling for keyboard, mouse and resizing events
- Colors and styling

## Hello World

```go
package main

import (
	"log"

	ui "github.com/gizak/termui"
	"github.com/gizak/termui/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
		}
	}
}
```

## Installation

Installing from the master branch is recommended. termui has been completely reworked since the latest release, and the latest release also doesn't support Go modules.

```bash
go get -u github.com/gizak/termui@master
```

**Note**: termui is currently undergoing API changes so make sure to check the changelog when upgrading.
If you upgrade and notice something is missing or don't like a change, revert the upgrade and open an issue.

## 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)
- [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 all of them 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/ethereum/go-ethereum/blob/master/cmd/geth/monitorcmd.go)
- [go-jira-ui](https://github.com/mikepea/go-jira-ui)
- [gotop](https://github.com/cjbassi/gotop)
- [termeter](https://github.com/atsaki/termeter)

## Related Works

- [blessed-contrib](https://github.com/yaronn/blessed-contrib)
- [gocui](https://github.com/jroimartin/gocui)
- [tui-rs](https://github.com/fdehau/tui-rs)

## License

[MIT](http://opensource.org/licenses/MIT)