Refactor posix writer
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c-bata
parent
b9667240d6
commit
9e1bcdb9c0
@ -6,6 +6,33 @@ type WinSize struct {
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Col uint16
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}
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type DisplayAttribute int
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const (
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// DisplayReset reset all display attributes.
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DisplayReset DisplayAttribute = iota
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// DisplayBold set bold or increases intensity.
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DisplayBold
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// DisplayLowIntensity decreases intensity. Not widely supported.
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DisplayLowIntensity
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// DisplayItalic set italic. Not widely supported.
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DisplayItalic
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// DisplayUnderline set underline
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DisplayUnderline
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// DisplayBlink set blink (less than 150 per minute).
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DisplayBlink
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// DisplayBlink set blink (more than 150 per minute). Not widely supported.
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DisplayRapidBlink
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// DisplayReverse swap foreground and background colors.
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DisplayReverse
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// DisplayInvisible set invisible. Not widely supported.
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DisplayInvisible
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// DisplayCrossedOut set characters legible, but marked for deletion. Not widely supported.
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DisplayCrossedOut
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// DisplayDefaultFont set primary(default) font
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DisplayDefaultFont
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)
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// Color represents color on terminal.
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type Color int
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172
posix_output.go
172
posix_output.go
@ -53,37 +53,37 @@ func (w *PosixWriter) Flush() error {
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// EraseScreen erases the screen with the background colour and moves the cursor to home.
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func (w *PosixWriter) EraseScreen() {
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w.WriteRaw([]byte{0x1b, 0x5b, 0x32, 0x4a})
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w.WriteRaw([]byte{0x1b, '[', '2', 'J'})
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return
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}
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// EraseUp erases the screen from the current line up to the top of the screen.
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func (w *PosixWriter) EraseUp() {
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w.WriteRaw([]byte{0x1b, 0x5b, 0x31, 0x4a})
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w.WriteRaw([]byte{0x1b, '[', '2', 'J'})
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return
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}
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// EraseDown erases the screen from the current line down to the bottom of the screen.
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func (w *PosixWriter) EraseDown() {
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w.WriteRaw([]byte{0x1b, 0x5b, 0x4a})
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w.WriteRaw([]byte{0x1b, '[', 'J'})
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return
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}
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// EraseStartOfLine erases from the current cursor position to the start of the current line.
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func (w *PosixWriter) EraseStartOfLine() {
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w.WriteRaw([]byte{0x1b, 0x5b, 0x31, 0x4b})
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w.WriteRaw([]byte{0x1b, '[', '1', 'K'})
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return
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}
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// EraseEndOfLine erases from the current cursor position to the end of the current line.
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func (w *PosixWriter) EraseEndOfLine() {
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w.WriteRaw([]byte{0x1b, 0x5b, 0x4b})
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w.WriteRaw([]byte{0x1b, '[', 'K'})
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return
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}
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// EraseLine erases the entire current line.
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func (w *PosixWriter) EraseLine() {
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w.WriteRaw([]byte{0x1b, 0x5b, 0x32, 0x4b})
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w.WriteRaw([]byte{0x1b, '[', '2', 'K'})
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return
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}
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@ -91,12 +91,12 @@ func (w *PosixWriter) EraseLine() {
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// ShowCursor stops blinking cursor and show.
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func (w *PosixWriter) ShowCursor() {
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w.WriteRaw([]byte{0x1b, 0x5b, 0x3f, 0x31, 0x32, 0x6c, 0x1b, 0x5b, 0x3f, 0x32, 0x35, 0x68})
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w.WriteRaw([]byte{0x1b, '[', '?', '1', '2', 'l', 0x1b, '[', '?', '2', '5', 'h'})
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}
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// HideCursor hides cursor.
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func (w *PosixWriter) HideCursor() {
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w.WriteRaw([]byte{0x1b, 0x5b, 0x3f, 0x32, 0x35, 0x6c})
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w.WriteRaw([]byte{0x1b, '[', '?', '2', '5', 'l'})
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return
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}
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@ -104,16 +104,16 @@ func (w *PosixWriter) HideCursor() {
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func (w *PosixWriter) CursorGoTo(row, col int) {
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if row == 0 && col == 0 {
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// If no row/column parameters are provided (ie. <ESC>[H), the cursor will move to the home position.
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w.WriteRaw([]byte{0x1b, 0x5b, 0x3b, 0x48})
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w.WriteRaw([]byte{0x1b, '[', 'H'})
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return
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}
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r := strconv.Itoa(row)
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c := strconv.Itoa(col)
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w.WriteRaw([]byte{0x1b, 0x5b})
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w.WriteRaw([]byte{0x1b, '['})
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w.WriteRaw([]byte(r))
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w.WriteRaw([]byte{0x3b})
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w.WriteRaw([]byte{';'})
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w.WriteRaw([]byte(c))
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w.WriteRaw([]byte{0x48})
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w.WriteRaw([]byte{'H'})
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return
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}
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@ -126,9 +126,9 @@ func (w *PosixWriter) CursorUp(n int) {
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return
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}
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s := strconv.Itoa(n)
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w.WriteRaw([]byte{0x1b, 0x5b})
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w.WriteRaw([]byte{0x1b, '['})
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w.WriteRaw([]byte(s))
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w.WriteRaw([]byte{0x41})
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w.WriteRaw([]byte{'A'})
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return
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}
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@ -141,9 +141,9 @@ func (w *PosixWriter) CursorDown(n int) {
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return
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}
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s := strconv.Itoa(n)
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w.WriteRaw([]byte{0x1b, 0x5b})
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w.WriteRaw([]byte{0x1b, '['})
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w.WriteRaw([]byte(s))
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w.WriteRaw([]byte{0x42})
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w.WriteRaw([]byte{'B'})
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return
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}
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@ -156,9 +156,9 @@ func (w *PosixWriter) CursorForward(n int) {
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return
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}
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s := strconv.Itoa(n)
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w.WriteRaw([]byte{0x1b, 0x5b})
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w.WriteRaw([]byte{0x1b, '['})
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w.WriteRaw([]byte(s))
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w.WriteRaw([]byte{0x43})
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w.WriteRaw([]byte{'C'})
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return
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}
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@ -171,29 +171,29 @@ func (w *PosixWriter) CursorBackward(n int) {
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return
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}
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s := strconv.Itoa(n)
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w.WriteRaw([]byte{0x1b, 0x5b})
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w.WriteRaw([]byte{0x1b, '['})
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w.WriteRaw([]byte(s))
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w.WriteRaw([]byte{0x44})
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w.WriteRaw([]byte{'D'})
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return
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}
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// AskForCPR asks for a cursor position report (CPR).
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func (w *PosixWriter) AskForCPR() {
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// CPR: Cursor Position Request.
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w.WriteRaw([]byte{0x1b, 0x5b, 0x36, 0x6e})
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w.WriteRaw([]byte{0x1b, '[', '6', 'n'})
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w.Flush()
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return
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}
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// SaveCursor saves current cursor position.
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func (w *PosixWriter) SaveCursor() {
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w.WriteRaw([]byte{0x1b, 0x5b, 0x73})
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w.WriteRaw([]byte{0x1b, '[', 's'})
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return
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}
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// UnSaveCursor restores cursor position after a Save Cursor.
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func (w *PosixWriter) UnSaveCursor() {
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w.WriteRaw([]byte{0x1b, 0x5b, 0x75})
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w.WriteRaw([]byte{0x1b, '[', 'u'})
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return
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}
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@ -201,13 +201,13 @@ func (w *PosixWriter) UnSaveCursor() {
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// ScrollDown scrolls display down one line.
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func (w *PosixWriter) ScrollDown() {
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w.WriteRaw([]byte{0x1b, 0x44})
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w.WriteRaw([]byte{0x1b, 'D'})
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return
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}
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// ScrollUp scroll display up one line.
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func (w *PosixWriter) ScrollUp() {
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w.WriteRaw([]byte{0x1b, 0x4d})
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w.WriteRaw([]byte{0x1b, 'M'})
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return
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}
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@ -233,7 +233,7 @@ func (w *PosixWriter) SetTitle(title string) {
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titleBytes = bytes.Replace(titleBytes, patterns[i].from, patterns[i].to, -1)
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}
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w.WriteRaw([]byte{0x1b, 0x5d, 0x32, 0x3b})
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w.WriteRaw([]byte{0x1b, ']', '2', ';'})
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w.WriteRaw(titleBytes)
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w.WriteRaw([]byte{0x07})
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return
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@ -241,82 +241,112 @@ func (w *PosixWriter) SetTitle(title string) {
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// ClearTitle clears a title of terminal window.
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func (w *PosixWriter) ClearTitle() {
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w.WriteRaw([]byte{0x1b, 0x5d, 0x32, 0x3b, 0x07})
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w.WriteRaw([]byte{0x1b, ']', '2', ';', 0x07})
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return
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}
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/* Font */
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// SetColor sets text and background colors. and specify whether text is bold.
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// Deprecated. This interface is not cool, please use SetDisplayAttributes.
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func (w *PosixWriter) SetColor(fg, bg Color, bold bool) {
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if bold {
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w.SetDisplayAttributes(fg, bg, DisplayBold)
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} else {
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w.SetDisplayAttributes(fg, bg, DisplayDefaultFont)
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}
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return
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}
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// SetDisplayAttributes set display attributes (Set colors, blink, bold, italic and so on).
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func (w *PosixWriter) SetDisplayAttributes(fg, bg Color, attrs ...DisplayAttribute) {
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w.WriteRaw([]byte{0x1b, '['}) // control sequence introducer
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defer w.WriteRaw([]byte{'m'}) // final character
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var separator byte = ';'
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for i := range attrs {
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p, ok := displayAttributeParameters[attrs[i]]
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if !ok {
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continue
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}
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w.WriteRaw(p)
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w.WriteRaw([]byte{separator})
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}
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f, ok := foregroundANSIColors[fg]
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if !ok {
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f = foregroundANSIColors[DefaultColor]
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}
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w.WriteRaw(f)
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w.WriteRaw([]byte{separator})
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b, ok := backgroundANSIColors[bg]
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if !ok {
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b = backgroundANSIColors[DefaultColor]
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}
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w.WriteRaw([]byte{0x1b, 0x5b})
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if !bold {
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w.WriteRaw([]byte{0x30, 0x3b})
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}
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w.WriteRaw(f)
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w.WriteRaw([]byte{0x3b})
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w.WriteRaw(b)
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if bold {
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w.WriteRaw([]byte{0x3b, 0x31})
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}
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w.WriteRaw([]byte{0x6d})
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return
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}
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var displayAttributeParameters = map[DisplayAttribute][]byte{
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DisplayReset: {'0'},
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DisplayBold: {'1'},
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DisplayLowIntensity: {'2'},
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DisplayItalic: {'3'},
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DisplayUnderline: {'4'},
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DisplayBlink: {'5'},
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DisplayRapidBlink: {'6'},
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DisplayReverse: {'7'},
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DisplayInvisible: {'8'},
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DisplayCrossedOut: {'9'},
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DisplayDefaultFont: {'1', '0'},
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}
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var foregroundANSIColors = map[Color][]byte{
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DefaultColor: {0x33, 0x39}, // 39
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DefaultColor: {'3', '9'},
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// Low intensity.
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Black: {0x33, 0x30}, // 30
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DarkRed: {0x33, 0x31}, // 31
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DarkGreen: {0x33, 0x32}, // 32
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Brown: {0x33, 0x33}, // 33
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DarkBlue: {0x33, 0x34}, // 34
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Purple: {0x33, 0x35}, // 35
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Cyan: {0x33, 0x36}, //36
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LightGray: {0x33, 0x37}, //37
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Black: {'3', '0'},
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DarkRed: {'3', '1'},
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DarkGreen: {'3', '2'},
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Brown: {'3', '3'},
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DarkBlue: {'3', '4'},
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Purple: {'3', '5'},
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Cyan: {'3', '6'},
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LightGray: {'3', '7'},
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// High intensity.
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DarkGray: {0x39, 0x30}, // 90
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Red: {0x39, 0x31}, // 91
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Green: {0x39, 0x32}, // 92
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Yellow: {0x39, 0x33}, // 93
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Blue: {0x39, 0x34}, // 94
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Fuchsia: {0x39, 0x35}, // 95
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Turquoise: {0x39, 0x36}, // 96
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White: {0x39, 0x37}, // 97
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DarkGray: {'9', '0'},
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Red: {'9', '1'},
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Green: {'9', '2'},
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Yellow: {'9', '3'},
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Blue: {'9', '4'},
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Fuchsia: {'9', '5'},
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Turquoise: {'9', '6'},
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White: {'9', '7'},
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}
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var backgroundANSIColors = map[Color][]byte{
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DefaultColor: {0x34, 0x39}, // 49
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DefaultColor: {'4', '9'},
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// Low intensity.
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Black: {0x34, 0x30}, // 40
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DarkRed: {0x34, 0x31}, // 41
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DarkGreen: {0x34, 0x32}, // 42
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Brown: {0x34, 0x33}, // 43
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DarkBlue: {0x34, 0x34}, // 44
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Purple: {0x34, 0x35}, // 45
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Cyan: {0x34, 0x36}, // 46
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LightGray: {0x34, 0x37}, // 47
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Black: {'4', '0'},
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DarkRed: {'4', '1'},
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DarkGreen: {'4', '2'},
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Brown: {'4', '3'},
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DarkBlue: {'4', '4'},
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Purple: {'4', '5'},
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Cyan: {'4', '6'},
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LightGray: {'4', '7'},
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// High intensity
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DarkGray: {0x31, 0x30, 0x30}, // 100
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Red: {0x31, 0x30, 0x31}, // 101
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Green: {0x31, 0x30, 0x32}, // 102
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Yellow: {0x31, 0x30, 0x33}, // 103
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Blue: {0x31, 0x30, 0x34}, // 104
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Fuchsia: {0x31, 0x30, 0x35}, // 105
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Turquoise: {0x31, 0x30, 0x36}, // 106
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White: {0x31, 0x30, 0x37}, // 107
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DarkGray: {'1', '0', '0'},
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Red: {'1', '0', '1'},
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Green: {'1', '0', '2'},
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Yellow: {'1', '0', '3'},
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Blue: {'1', '0', '4'},
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Fuchsia: {'1', '0', '5'},
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Turquoise: {'1', '0', '6'},
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White: {'1', '0', '7'},
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}
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var _ ConsoleWriter = &PosixWriter{}
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