mirror of https://github.com/docker/cli.git
52 lines
1.1 KiB
Go
52 lines
1.1 KiB
Go
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//
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package pty
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import (
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"os"
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"golang.org/x/sys/unix"
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)
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const (
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TIOCGWINSZ = 21608 // 'T' << 8 | 104
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TIOCSWINSZ = 21607 // 'T' << 8 | 103
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)
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// Winsize describes the terminal size.
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type Winsize struct {
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Rows uint16 // ws_row: Number of rows (in cells)
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Cols uint16 // ws_col: Number of columns (in cells)
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X uint16 // ws_xpixel: Width in pixels
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Y uint16 // ws_ypixel: Height in pixels
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}
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// GetsizeFull returns the full terminal size description.
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func GetsizeFull(t *os.File) (size *Winsize, err error) {
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var wsz *unix.Winsize
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wsz, err = unix.IoctlGetWinsize(int(t.Fd()), TIOCGWINSZ)
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if err != nil {
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return nil, err
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} else {
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return &Winsize{wsz.Row, wsz.Col, wsz.Xpixel, wsz.Ypixel}, nil
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}
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}
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// Get Windows Size
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func Getsize(t *os.File) (rows, cols int, err error) {
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var wsz *unix.Winsize
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wsz, err = unix.IoctlGetWinsize(int(t.Fd()), TIOCGWINSZ)
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if err != nil {
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return 80, 25, err
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} else {
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return int(wsz.Row), int(wsz.Col), nil
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}
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}
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// Setsize resizes t to s.
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func Setsize(t *os.File, ws *Winsize) error {
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wsz := unix.Winsize{ws.Rows, ws.Cols, ws.X, ws.Y}
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return unix.IoctlSetWinsize(int(t.Fd()), TIOCSWINSZ, &wsz)
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}
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