65 lines
1.8 KiB
Go
65 lines
1.8 KiB
Go
package pterm
|
|
|
|
import (
|
|
"os"
|
|
|
|
"golang.org/x/term"
|
|
)
|
|
|
|
// FallbackTerminalWidth is the value used for GetTerminalWidth, if the actual width can not be detected
|
|
// You can override that value if necessary.
|
|
var FallbackTerminalWidth = 80
|
|
|
|
// FallbackTerminalHeight is the value used for GetTerminalHeight, if the actual height can not be detected
|
|
// You can override that value if necessary.
|
|
var FallbackTerminalHeight = 10
|
|
|
|
// forcedTerminalWidth, when set along with forcedTerminalHeight, forces the terminal width value.
|
|
var forcedTerminalWidth int = 0
|
|
|
|
// forcedTerminalHeight, when set along with forcedTerminalWidth, forces the terminal height value.
|
|
var forcedTerminalHeight int = 0
|
|
|
|
// GetTerminalWidth returns the terminal width of the active terminal.
|
|
func GetTerminalWidth() int {
|
|
if forcedTerminalWidth > 0 {
|
|
return forcedTerminalWidth
|
|
}
|
|
width, _, _ := GetTerminalSize()
|
|
return width
|
|
}
|
|
|
|
// GetTerminalHeight returns the terminal height of the active terminal.
|
|
func GetTerminalHeight() int {
|
|
if forcedTerminalHeight > 0 {
|
|
return forcedTerminalHeight
|
|
}
|
|
_, height, _ := GetTerminalSize()
|
|
return height
|
|
}
|
|
|
|
// GetTerminalSize returns the width and the height of the active terminal.
|
|
func GetTerminalSize() (width, height int, err error) {
|
|
if forcedTerminalWidth > 0 && forcedTerminalHeight > 0 {
|
|
return forcedTerminalWidth, forcedTerminalHeight, nil
|
|
}
|
|
w, h, err := term.GetSize(int(os.Stdout.Fd()))
|
|
if w <= 0 {
|
|
w = FallbackTerminalWidth
|
|
}
|
|
if h <= 0 {
|
|
h = FallbackTerminalHeight
|
|
}
|
|
if err != nil {
|
|
err = ErrTerminalSizeNotDetectable
|
|
}
|
|
return w, h, err
|
|
}
|
|
|
|
// setForcedTerminalSize turns off terminal size autodetection. Usuful for unified tests.
|
|
func SetForcedTerminalSize(width int, height int) {
|
|
forcedTerminalWidth = width
|
|
forcedTerminalHeight = height
|
|
RecalculateTerminalSize()
|
|
}
|