text: // +build windows
  
  package winterm
  
  import "github.com/Azure/go-ansiterm"
  
  const (
  	FOREGROUND_COLOR_MASK = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE
  	BACKGROUND_COLOR_MASK = BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE
  )
  
  // collectAnsiIntoWindowsAttributes modifies the passed Windows text mode flags to reflect the
  // request represented by the passed ANSI mode.
  func collectAnsiIntoWindowsAttributes(windowsMode uint16, inverted bool, baseMode uint16, ansiMode int16) (uint16, bool) {
  	switch ansiMode {
  
  	// Mode styles
  	case ansiterm.ANSI_SGR_BOLD:
  		windowsMode = windowsMode | FOREGROUND_INTENSITY
  
  	case ansiterm.ANSI_SGR_DIM, ansiterm.ANSI_SGR_BOLD_DIM_OFF:
  		windowsMode &^= FOREGROUND_INTENSITY
  
  	case ansiterm.ANSI_SGR_UNDERLINE:
  		windowsMode = windowsMode | COMMON_LVB_UNDERSCORE
  
  	case ansiterm.ANSI_SGR_REVERSE:
  		inverted = true
  
  	case ansiterm.ANSI_SGR_REVERSE_OFF:
  		inverted = false
  
  	case ansiterm.ANSI_SGR_UNDERLINE_OFF:
  		windowsMode &^= COMMON_LVB_UNDERSCORE
  
  		// Foreground colors
  	case ansiterm.ANSI_SGR_FOREGROUND_DEFAULT:
  		windowsMode = (windowsMode &^ FOREGROUND_MASK) | (baseMode & FOREGROUND_MASK)
  
  	case ansiterm.ANSI_SGR_FOREGROUND_BLACK:
  		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK)
  
  	case ansiterm.ANSI_SGR_FOREGROUND_RED:
  		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED
  
  	case ansiterm.ANSI_SGR_FOREGROUND_GREEN:
  		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_GREEN
  
  	case ansiterm.ANSI_SGR_FOREGROUND_YELLOW:
  		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED | FOREGROUND_GREEN
  
  	case ansiterm.ANSI_SGR_FOREGROUND_BLUE:
  		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_BLUE
  
  	case ansiterm.ANSI_SGR_FOREGROUND_MAGENTA:
  		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED | FOREGROUND_BLUE
  
  	case ansiterm.ANSI_SGR_FOREGROUND_CYAN:
  		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_GREEN | FOREGROUND_BLUE
  
  	case ansiterm.ANSI_SGR_FOREGROUND_WHITE:
  		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE
  
  		// Background colors
  	case ansiterm.ANSI_SGR_BACKGROUND_DEFAULT:
  		// Black with no intensity
  		windowsMode = (windowsMode &^ BACKGROUND_MASK) | (baseMode & BACKGROUND_MASK)
  
  	case ansiterm.ANSI_SGR_BACKGROUND_BLACK:
  		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK)
  
  	case ansiterm.ANSI_SGR_BACKGROUND_RED:
  		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED
  
  	case ansiterm.ANSI_SGR_BACKGROUND_GREEN:
  		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_GREEN
  
  	case ansiterm.ANSI_SGR_BACKGROUND_YELLOW:
  		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED | BACKGROUND_GREEN
  
  	case ansiterm.ANSI_SGR_BACKGROUND_BLUE:
  		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_BLUE
  
  	case ansiterm.ANSI_SGR_BACKGROUND_MAGENTA:
  		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED | BACKGROUND_BLUE
  
  	case ansiterm.ANSI_SGR_BACKGROUND_CYAN:
  		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_GREEN | BACKGROUND_BLUE
  
  	case ansiterm.ANSI_SGR_BACKGROUND_WHITE:
  		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE
  	}
  
  	return windowsMode, inverted
  }
  
  // invertAttributes inverts the foreground and background colors of a Windows attributes value
  func invertAttributes(windowsMode uint16) uint16 {
  	return (COMMON_LVB_MASK & windowsMode) | ((FOREGROUND_MASK & windowsMode) << 4) | ((BACKGROUND_MASK & windowsMode) >> 4)
  }
  