update vendor

vendor/github.com/atomicgo/cursor/cursor_windows.go

@@ -0,0 +1,105 @@
+package cursor
+
+import (
+	"os"
+	"syscall"
+	"unsafe"
+)
+
+// Up moves the cursor n lines up relative to the current position.
+func Up(n int) {
+	move(0, -n)
+	height += n
+}
+
+// Down moves the cursor n lines down relative to the current position.
+func Down(n int) {
+	move(0, n)
+	if height-n <= 0 {
+		height = 0
+	} else {
+		height -= n
+	}
+}
+
+// Right moves the cursor n characters to the right relative to the current position.
+func Right(n int) {
+	move(n, 0)
+}
+
+// Left moves the cursor n characters to the left relative to the current position.
+func Left(n int) {
+	move(-n, 0)
+}
+
+func move(x int, y int) {
+	handle := syscall.Handle(os.Stdout.Fd())
+
+	var csbi consoleScreenBufferInfo
+	_, _, _ = procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi)))
+
+	var cursor coord
+	cursor.x = csbi.cursorPosition.x + short(x)
+	cursor.y = csbi.cursorPosition.y + short(y)
+
+	_, _, _ = procSetConsoleCursorPosition.Call(uintptr(handle), uintptr(*(*int32)(unsafe.Pointer(&cursor))))
+}
+
+// HorizontalAbsolute moves the cursor to n horizontally.
+// The position n is absolute to the start of the line.
+func HorizontalAbsolute(n int) {
+	handle := syscall.Handle(os.Stdout.Fd())
+
+	var csbi consoleScreenBufferInfo
+	_, _, _ = procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi)))
+
+	var cursor coord
+	cursor.x = short(n)
+	cursor.y = csbi.cursorPosition.y
+
+	if csbi.size.x < cursor.x {
+		cursor.x = csbi.size.x
+	}
+
+	_, _, _ = procSetConsoleCursorPosition.Call(uintptr(handle), uintptr(*(*int32)(unsafe.Pointer(&cursor))))
+}
+
+// Show the cursor if it was hidden previously.
+// Don't forget to show the cursor at least at the end of your application.
+// Otherwise the user might have a terminal with a permanently hidden cursor, until he reopens the terminal.
+func Show() {
+	handle := syscall.Handle(os.Stdout.Fd())
+
+	var cci consoleCursorInfo
+	_, _, _ = procGetConsoleCursorInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&cci)))
+	cci.visible = 1
+
+	_, _, _ = procSetConsoleCursorInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&cci)))
+}
+
+// Hide the cursor.
+// Don't forget to show the cursor at least at the end of your application with Show.
+// Otherwise the user might have a terminal with a permanently hidden cursor, until he reopens the terminal.
+func Hide() {
+	handle := syscall.Handle(os.Stdout.Fd())
+
+	var cci consoleCursorInfo
+	_, _, _ = procGetConsoleCursorInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&cci)))
+	cci.visible = 0
+
+	_, _, _ = procSetConsoleCursorInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&cci)))
+}
+
+// ClearLine clears the current line and moves the cursor to it's start position.
+func ClearLine() {
+	handle := syscall.Handle(os.Stdout.Fd())
+
+	var csbi consoleScreenBufferInfo
+	_, _, _ = procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi)))
+
+	var w uint32
+	var x short
+	cursor := csbi.cursorPosition
+	x = csbi.size.x
+	_, _, _ = procFillConsoleOutputCharacter.Call(uintptr(handle), uintptr(' '), uintptr(x), uintptr(*(*int32)(unsafe.Pointer(&cursor))), uintptr(unsafe.Pointer(&w)))
+}