package util import ( "bytes" ui "github.com/gizak/termui/v3" "image" "math" "strconv" "strings" ) func FormatValue(value float64, scale int) string { if math.Abs(value) == math.MaxFloat64 { return "Inf" } else { return formatTrailingDigits(addRadixChars(value), scale) } } func FormatValueWithSign(value float64, scale int) string { if value == 0 { return " 0" } else if value > 0 { return "+" + FormatValue(value, scale) } else { return FormatValue(value, scale) } } func addRadixChars(value float64) string { buf := &bytes.Buffer{} if value < 0 { buf.Write([]byte{'-'}) value = 0 - value } radix := []byte{','} parts := strings.Split(strconv.FormatFloat(value, 'f', -1, 64), ".") pos := 0 if len(parts[0])%3 != 0 { pos += len(parts[0]) % 3 buf.WriteString(parts[0][:pos]) buf.Write(radix) } for ; pos < len(parts[0]); pos += 3 { buf.WriteString(parts[0][pos : pos+3]) buf.Write(radix) } buf.Truncate(buf.Len() - 1) if len(parts) > 1 { buf.Write([]byte{'.'}) buf.WriteString(parts[1]) } return buf.String() } func formatTrailingDigits(value string, scale int) string { if i := strings.Index(value, "."); i >= 0 { formatted := value if scale <= 0 { formatted = value[:i] } i++ if i+scale < len(value) { formatted = value[:i+scale] } formatted = strings.TrimRight(formatted, "0") return strings.TrimRight(formatted, ".") } return value } func GetMiddlePoint(rectangle image.Rectangle, text string, offset int) image.Point { return image.Pt(rectangle.Min.X+rectangle.Dx()/2-len(text)/2, rectangle.Max.Y-rectangle.Dy()/2+offset) } func PrintString(s string, style ui.Style, p image.Point, buffer *ui.Buffer) { for i, char := range s { buffer.SetCell(ui.Cell{Rune: char, Style: style}, image.Pt(p.X+i, p.Y)) } }