k9s/internal/ui/padding.go

59 lines
1.2 KiB
Go

// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of K9s
package ui
import (
"strings"
"unicode"
"github.com/derailed/k9s/internal/render"
)
// MaxyPad tracks uniform column padding.
type MaxyPad []int
// ComputeMaxColumns figures out column max size and necessary padding.
func ComputeMaxColumns(pads MaxyPad, sortColName string, header render.Header, ee render.RowEvents) {
const colPadding = 1
for index, h := range header {
pads[index] = len(h.Name)
if h.Name == sortColName {
pads[index] = len(h.Name) + 2
}
}
var row int
for _, e := range ee {
for index, field := range e.Row.Fields {
width := len(field) + colPadding
if index < len(pads) && width > pads[index] {
pads[index] = width
}
}
row++
}
}
// IsASCII checks if table cell has all ascii characters.
func IsASCII(s string) bool {
for i := 0; i < len(s); i++ {
if s[i] > unicode.MaxASCII {
return false
}
}
return true
}
// Pad a string up to the given length or truncates if greater than length.
func Pad(s string, width int) string {
if len(s) == width {
return s
}
if len(s) > width {
return render.Truncate(s, width)
}
return s + strings.Repeat(" ", width-len(s))
}