[설계 패턴 C#] 9. 장식자 패턴

9. 장식자 패턴

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Decorator.zip

"본문 내용"은 언제나 휴일 본 사이트에 있습니다.

▶ Picture.cs

using System;   namespace Decorator {     class Picture     {         int tone;         int brightness;         int saturation;           public Picture(int tone,int brightness,int saturation)         {             this.tone = tone;             this.brightness = brightness;             this.saturation = saturation;         }           public void ChangeTone(int tone)         {             this.tone += tone;         }         public void ChangeBrightness(int brightness)         {             this.brightness += brightness;         }         public void ChangeSaturation(int saturation)         {              this.saturation += saturation;         }           public void View()         {             Console.WriteLine("색조:{0} 명도:{1} 채도:{2}",tone,brightness,saturation);         }     } }

 

▶ IChange.cs

namespace Decorator {     interface IChange     {         void Change(Picture picture,int tone,int brightness,int saturation);     } }

 

▶ ToneCompensator.cs

namespace Decorator {     class ToneCompensator:IChange     {         //IChange에서 약속한 사진을 수정하는 메서드 구현         public void Change(Picture picture, int tone, int brightness, int saturation)         {             picture.ChangeTone(tone);         }     } }

 

▶ BrightnessCompensator.cs

namespace Decorator {     class BrightnessCompensator:IChange     {         // IChange에서 약속한 사진을 수정하는 메서드 구현         public void Change(Picture picture, int tone, int brightness, int saturation)         {             picture.ChangeBrightness(brightness);         }     } }

 

▶ SaturationCompensator.cs

namespace Decorator {     class SaturationCompensator:IChange     {         // IChange에서 약속한 사진을 수정하는 메서드 구현         public void Change(Picture picture, int tone, int brightness, int saturation)         {             picture.ChangeSaturation(saturation);         }     } }

 

▶ MultiCompensator.cs

using System; using System.Collections.Generic; namespace Decorator {     class MultiCompensator:IChange     {         List<IChange> compensators = new List<IChange>();         public void Change(Picture picture, int tone, int brightness, int saturation)         {             // 내부에 보관된 IChange(단위 보정기)를 이용하여 기능 구현             foreach (IChange ichange in compensators)             {                 ichange.Change(picture, tone, brightness, saturation);             }         }         public void AddCompensator(IChange compensator)         {             compensators.Add(compensator);         }     } }

 

▶ Program.cs

namespace Decorator {     class Program     {         static void Main(string[] args)         {             IChange  compensator = new MultiCompensator();             Picture picture = new Picture(100, 100, 100);               IChange tonecom = new ToneCompensator();             IChange brightcom = new BrightnessCompensator();             IChange saturcom = new SaturationCompensator();             MultiCompensator mc = compensator as MultiCompensator;               if (mc != null)             {                 mc.AddCompensator(tonecom);                 mc.AddCompensator(brightcom);                 mc.AddCompensator(saturcom);             }             compensator.Change(picture, 20, 15, 12);             picture.View();         }     } }