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package ql
import (
"fmt"
"io"
"strings"
)
// Status is a decoder for the status packed returned by the printer.
type Status [32]byte
func (s *Status) MediaWidthMM() int { return int(s[10]) }
func (s *Status) MediaLengthMM() int { return int(s[17]) }
type StatusType byte
const (
StatusTypeReplyToRequest StatusType = 0x00
StatusTypePrintingCompleted = 0x01
StatusTypeErrorOccurred = 0x02
StatusTypeTurnedOff = 0x04
StatusTypeNotification = 0x05
StatusTypePhaseChange = 0x06
)
func (s *Status) Type() StatusType { return StatusType(s[18]) }
type StatusPhase byte
const (
StatusPhaseReceiving StatusPhase = 0x00
StatusPhasePrinting = 0x01
)
func (s *Status) Phase() StatusPhase { return StatusPhase(s[19]) }
func decodeBitfieldErrors(b byte, errors [8]string) []string {
var result []string
for i := uint(0); i < 8; i++ {
if b&(1<<i) != 0 {
result = append(result, errors[i])
}
}
return result
}
func (s *Status) Errors() (errors []string) {
errors = append(errors, decodeBitfieldErrors(s[8], [8]string{
"no media", "end of media", "cutter jam", "?", "printer in use",
"printer turned off", "high-voltage adapter", "fan motor error"})...)
errors = append(errors, decodeBitfieldErrors(s[9], [8]string{
"replace media", "expansion buffer full", "communication error",
"communication buffer full", "cover open", "cancel key",
"media cannot be fed", "system error"})...)
return
}
// -----------------------------------------------------------------------------
// String implements the Stringer interface.
func (s *Status) String() string {
var b strings.Builder
s.Dump(&b)
return b.String()
}
// Dump writes the status data to an io.Writer in a human-readable format.
func (s *Status) Dump(f io.Writer) {
/*
if s[0] != 0x80 || s[1] != 0x20 || s[2] != 0x42 || s[3] != 0x34 {
fmt.Fprintln(f, "unexpected status fixed bytes")
}
*/
// Model code.
switch m := s[4]; m {
case 0x38:
fmt.Fprintln(f, "model: QL-800")
case 0x39:
fmt.Fprintln(f, "model: QL-810W")
case 0x41:
fmt.Fprintln(f, "model: QL-820NWB")
case 0x43:
fmt.Fprintln(f, "model: QL-1100")
case 0x44:
fmt.Fprintln(f, "model: QL-1110NWB")
case 0x45:
fmt.Fprintln(f, "model: QL-1115NWB")
default:
fmt.Fprintln(f, "model:", m)
}
/*
// s[6] seems to be 0x00 in a real-world QL-800, as in QL-1100 docs.
if s[5] != 0x30 || s[6] != 0x30 || s[7] != 0x00 {
fmt.Fprintln(f, "unexpected status fixed bytes")
}
*/
// Error information 1.
for _, e := range decodeBitfieldErrors(s[8], [8]string{
"no media", "end of media", "cutter jam", "?", "printer in use",
"printer turned off", "high-voltage adapter", "fan motor error"}) {
fmt.Fprintln(f, "error 1:", e)
}
// Error information 2.
for _, e := range decodeBitfieldErrors(s[9], [8]string{
"replace media", "expansion buffer full", "communication error",
"communication buffer full", "cover open", "cancel key",
"media cannot be fed", "system error"}) {
fmt.Fprintln(f, "error 2:", e)
}
// Media width.
fmt.Fprintln(f, "media width:", s[10], "mm")
// Media type.
switch t := s[11]; t {
case 0x00:
fmt.Fprintln(f, "media: no media")
case 0x4a, 0x0a: // 0x4a = J, in reality we get 0x0a, as in QL-1100 docs.
fmt.Fprintln(f, "media: continuous length tape")
case 0x4b, 0x0b: // 0x4b = K, in reality we get 0x0b, as in QL-1100 docs.
fmt.Fprintln(f, "media: die-cut labels")
default:
fmt.Fprintln(f, "media:", t)
}
/*
// In a real-world QL-800, s[14] seems to be:
// 0x01 with die-cut 29mm long labels,
// 0x14 with 29mm tape,
// 0x23 with red-black 62mm tape,
// and directly corresponds to physical pins on the tape.
if s[12] != 0x00 || s[13] != 0x00 || s[14] != 0x3f {
fmt.Fprintln(f, "unexpected status fixed bytes")
}
*/
// Mode.
fmt.Fprintln(f, "mode:", s[15])
/*
if s[16] != 0x00 {
fmt.Fprintln(f, "unexpected status fixed bytes")
}
*/
// Media length.
fmt.Fprintln(f, "media length:", s[17], "mm")
// Status type.
switch t := s[18]; StatusType(t) {
case StatusTypeReplyToRequest:
fmt.Fprintln(f, "status type: reply to status request")
case StatusTypePrintingCompleted:
fmt.Fprintln(f, "status type: printing completed")
case StatusTypeErrorOccurred:
fmt.Fprintln(f, "status type: error occurred")
case StatusTypeTurnedOff:
fmt.Fprintln(f, "status type: turned off")
case StatusTypeNotification:
fmt.Fprintln(f, "status type: notification")
case StatusTypePhaseChange:
fmt.Fprintln(f, "status type: phase change")
default:
fmt.Fprintln(f, "status type:", t)
}
// Phase type.
switch t := s[19]; StatusPhase(t) {
case StatusPhaseReceiving:
fmt.Fprintln(f, "phase state: receiving state")
case StatusPhasePrinting:
fmt.Fprintln(f, "phase state: printing state")
default:
fmt.Fprintln(f, "phase state:", t)
}
// Phase number.
fmt.Fprintln(f, "phase number:", int(s[20])*256+int(s[21]))
// Notification number.
switch n := s[22]; n {
case 0x00:
fmt.Fprintln(f, "notification number: not available")
case 0x03:
fmt.Fprintln(f, "notification number: cooling (started)")
case 0x04:
fmt.Fprintln(f, "notification number: cooling (finished)")
default:
fmt.Fprintln(f, "notification number:", n)
}
/*
// In a real-world QL-800, s[25] seems to be:
// 0x01 with 29mm tape or die-cut 29mm long labels,
// 0x81 with red-black 62mm tape.
if s[23] != 0x00 || s[24] != 0x00 || s[25] != 0x00 || s[26] != 0x00 ||
s[27] != 0x00 || s[28] != 0x00 || s[29] != 0x00 || s[30] != 0x00 ||
s[31] != 0x00 {
fmt.Fprintln(f, "unexpected status fixed bytes")
}
*/
}
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