119 lines
2.7 KiB
Markdown
119 lines
2.7 KiB
Markdown
## Description
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This library provides basic building blocks for building advanced console UIs.
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Initially created for [Gor](http://github.com/buger/gor).
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Full API documentation: http://godoc.org/github.com/buger/goterm
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## Basic usage
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Full screen console app, printing current time:
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```go
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import (
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tm "github.com/buger/goterm"
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"time"
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)
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func main() {
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tm.Clear() // Clear current screen
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for {
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// By moving cursor to top-left position we ensure that console output
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// will be overwritten each time, instead of adding new.
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tm.MoveCursor(1,1)
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tm.Println("Current Time:", time.Now().Format(time.RFC1123))
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tm.Flush() // Call it every time at the end of rendering
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time.Sleep(time.Second)
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}
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}
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```
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This can be seen in [examples/time_example.go](examples/time_example.go). To
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run it yourself, go into your `$GOPATH/src/github.com/buger/goterm` directory
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and run `go run ./examples/time_example.go`
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Print red bold message on white background:
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```go
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tm.Println(tm.Background(tm.Color(tm.Bold("Important header"), tm.RED), tm.WHITE))
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```
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Create box and move it to center of the screen:
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```go
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tm.Clear()
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// Create Box with 30% width of current screen, and height of 20 lines
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box := tm.NewBox(30|tm.PCT, 20, 0)
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// Add some content to the box
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// Note that you can add ANY content, even tables
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fmt.Fprint(box, "Some box content")
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// Move Box to approx center of the screen
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tm.Print(tm.MoveTo(box.String(), 40|tm.PCT, 40|tm.PCT))
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tm.Flush()
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```
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This can be found in [examples/box_example.go](examples/box_example.go).
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Draw table:
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```go
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// Based on http://golang.org/pkg/text/tabwriter
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totals := tm.NewTable(0, 10, 5, ' ', 0)
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fmt.Fprintf(totals, "Time\tStarted\tActive\tFinished\n")
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fmt.Fprintf(totals, "%s\t%d\t%d\t%d\n", "All", started, started-finished, finished)
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tm.Println(totals)
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tm.Flush()
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```
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This can be found in [examples/table_example.go](examples/table_example.go).
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## Line charts
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Chart example:
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```go
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import (
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tm "github.com/buger/goterm"
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)
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chart := tm.NewLineChart(100, 20)
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data := new(tm.DataTable)
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data.addColumn("Time")
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data.addColumn("Sin(x)")
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data.addColumn("Cos(x+1)")
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for i := 0.1; i < 10; i += 0.1 {
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data.addRow(i, math.Sin(i), math.Cos(i+1))
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}
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tm.Println(chart.Draw(data))
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```
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This can be found in [examples/chart_example.go](examples/chart_example.go).
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Drawing 2 separate graphs in different scales. Each graph have its own Y axe.
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```go
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chart.Flags = tm.DRAW_INDEPENDENT
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```
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Drawing graph with relative scale (Grapwh draw starting from min value instead of zero)
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```go
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chart.Flags = tm.DRAW_RELATIVE
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```
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