diff options
Diffstat (limited to 'vendor/github.com/jessevdk/go-flags/termsize_windows.go')
-rw-r--r-- | vendor/github.com/jessevdk/go-flags/termsize_windows.go | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/vendor/github.com/jessevdk/go-flags/termsize_windows.go b/vendor/github.com/jessevdk/go-flags/termsize_windows.go deleted file mode 100644 index 5c0fa6ba2..000000000 --- a/vendor/github.com/jessevdk/go-flags/termsize_windows.go +++ /dev/null @@ -1,85 +0,0 @@ -// +build windows - -package flags - -import ( - "syscall" - "unsafe" -) - -type ( - SHORT int16 - WORD uint16 - - SMALL_RECT struct { - Left SHORT - Top SHORT - Right SHORT - Bottom SHORT - } - - COORD struct { - X SHORT - Y SHORT - } - - CONSOLE_SCREEN_BUFFER_INFO struct { - Size COORD - CursorPosition COORD - Attributes WORD - Window SMALL_RECT - MaximumWindowSize COORD - } -) - -var kernel32DLL = syscall.NewLazyDLL("kernel32.dll") -var getConsoleScreenBufferInfoProc = kernel32DLL.NewProc("GetConsoleScreenBufferInfo") - -func getError(r1, r2 uintptr, lastErr error) error { - // If the function fails, the return value is zero. - if r1 == 0 { - if lastErr != nil { - return lastErr - } - return syscall.EINVAL - } - return nil -} - -func getStdHandle(stdhandle int) (uintptr, error) { - handle, err := syscall.GetStdHandle(stdhandle) - if err != nil { - return 0, err - } - return uintptr(handle), nil -} - -// GetConsoleScreenBufferInfo retrieves information about the specified console screen buffer. -// http://msdn.microsoft.com/en-us/library/windows/desktop/ms683171(v=vs.85).aspx -func GetConsoleScreenBufferInfo(handle uintptr) (*CONSOLE_SCREEN_BUFFER_INFO, error) { - var info CONSOLE_SCREEN_BUFFER_INFO - if err := getError(getConsoleScreenBufferInfoProc.Call(handle, uintptr(unsafe.Pointer(&info)), 0)); err != nil { - return nil, err - } - return &info, nil -} - -func getTerminalColumns() int { - defaultWidth := 80 - - stdoutHandle, err := getStdHandle(syscall.STD_OUTPUT_HANDLE) - if err != nil { - return defaultWidth - } - - info, err := GetConsoleScreenBufferInfo(stdoutHandle) - if err != nil { - return defaultWidth - } - - if info.MaximumWindowSize.X > 0 { - return int(info.MaximumWindowSize.X) - } - - return defaultWidth -} |