mirror of
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88 lines
1.9 KiB
Markdown
88 lines
1.9 KiB
Markdown
## Curse
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A utility for manipulating the terminal cursor. Current feature set:
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- Get terminal cursor position
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- Move cursor
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- Move up, down n-lines
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- Clear line
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- Clear Screen (up, down, all)
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- Set Color
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Basic Example usage (see below for an inline-progress bar):
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```go
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package main
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import (
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"fmt"
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"log"
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"github.com/sethgrid/curse"
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)
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func main() {
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c, err := curse.New()
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if err != nil {
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log.Fatal(err)
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}
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c.SetColorBold(curse.RED).SetBackgroundColor(curse.BLACK)
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fmt.Println("Position: ", c.Position)
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c.SetDefaultStyle()
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fmt.Println("something to be erased")
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c.MoveUp(1).EraseCurrentLine().MoveDown(1)
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}
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```
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Progress Bar Example:
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```go
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package main
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import (
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"fmt"
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"strings"
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"time"
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"github.com/sethgrid/curse"
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)
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func main() {
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fmt.Println("Progress Bar")
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total := 150
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progressBarWidth := 80
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c, _ := curse.New()
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// give some buffer space on the terminal
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fmt.Println()
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// display a progress bar
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for i := 0; i <= total; i++ {
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c.MoveUp(1)
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c.EraseCurrentLine()
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fmt.Printf("%d/%d ", i, total)
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c.MoveDown(1)
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c.EraseCurrentLine()
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fmt.Printf("%s", progressBar(i, total, progressBarWidth))
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time.Sleep(time.Millisecond * 25)
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}
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// end the previous last line of output
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fmt.Println()
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fmt.Println("Complete")
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}
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func progressBar(progress, total, width int) string {
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bar := make([]string, width)
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for i, _ := range bar {
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if float32(progress)/float32(total) > float32(i)/float32(width) {
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bar[i] = "*"
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} else {
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bar[i] = " "
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}
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}
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return "[" + strings.Join(bar, "") + "]"
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}
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```
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