■ IValueConverter 인터페이스를 구현해 색상→문자열 변환자를 사용하는 방법을 보여준다.
▶ 예제 코드 (C#)
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using System.Globalization; /// <summary> /// 색상→문자열 변환자 /// </summary> public class ColorToStringConverter : IValueConverter { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 변환하기 - Convert(sourceValue, targetType, parameter, cultureInfo) /// <summary> /// 변환하기 /// </summary> /// <param name="sourceValue">소스 값</param> /// <param name="targetType">타겟 타입</param> /// <param name="parameter">매개 변수</param> /// <param name="cultureInfo">문화 정보</param> /// <returns>변환 값</returns> public object Convert(object sourceValue, Type targetType, object parameter, CultureInfo cultureInfo) { Color color = sourceValue as Color; if(color == null) { return null; } int alpha = (int)Math.Round(255 * color.Alpha); int red = (int)Math.Round(255 * color.Red ); int green = (int)Math.Round(255 * color.Green); int blue = (int)Math.Round(255 * color.Blue ); return $"{alpha:X2}:{red:X2}:{green:X2}:{blue:X2}"; } #endregion #region 역변환하기 - ConvertBack(sourceValue, targetType, parameter, cultureInfo) /// <summary> /// 역변환하기 /// </summary> /// <param name="sourceValue">소스 값</param> /// <param name="targetType">타겟 타입</param> /// <param name="parameter">매개 변수</param> /// <param name="cultureInfo">문화 정보</param> /// <returns>역변환 값</returns> public object ConvertBack(object sourceValue, Type targetType, object parameter, CultureInfo cultureInfo) { } #endregion } |