[설계 패턴 C#] 7. 가교 패턴

7. 가교 패턴

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Bridge.zip

"본문 내용"은 언제나 휴일 본 사이트에 있습니다.

 

▶ IImageProcessing.cs

namespace Bridge {     interface IImageProcessing     {         string ImageProcessing(string subject);     } }

 

▶ VRModule.cs

namespace Bridge {     class VRModule:IImageProcessing     {         public string  ImageProcessing(string subject) //약속한 기능 구현         {             return subject.Replace("떨림","");         } }

 

▶ PCModule.cs

namespace Bridge {     class PCModule:IImageProcessing     {         public string ImageProcessing(string subject)  //약속한 기능 구현         {             return subject.Replace("0", "1");         }     } }

 

▶ Lens.cs

using System.Collections.Generic; namespace Bridge {     abstract class Lens     {         const int min_focuslevel=1;         const int max_focuslevel=3;         public int FocusLevel         {             get;             private set;         }         public int ModuleIndex         {             get;             private set;         }         List<IImageProcessing> modules = new List<IImageProcessing>();         //피사체를 얻어와 영성처리하여 사진으로 변환하는 메서드 약속         public abstract string Take(string subject, int distance);         public int ModuleCount         {             get             {                 return modules.Count;             }         }                 public Lens()         {             FocusLevel = min_focuslevel;             ModuleIndex = -1;         }           public void AddModule(IImageProcessing module)         {             modules.Add(module); // 실제 영상 처리를 하는 모듈 장착         }           //장착된 영상 처리 모듈을 이용하여 영상 처리를 하는 메서드         protected string ImageProcessing(string subject,int index)         {             if((index>=0)||(index<ModuleCount))             {                 IImageProcessing module = modules[index];                 subject = module.ImageProcessing(subject);             }             return subject;         }         public virtual void FocusUp()         {             if(FocusLevel < max_focuslevel)             {                 FocusLevel++;             }         }         public virtual void FocusDown()         {             if(FocusLevel > min_focuslevel)             {                 FocusLevel--;             }         }           protected string MakePicture(string subject,int distance)         {             string s = distance.ToString();             return subject.Replace(s,"선명");         }         //영상 처리에 사용할 모듈을 선택하는 메서드         public void SetModuleIndex(int index)         {             if((index >=0 )&&(index<ModuleCount))             {                 ModuleIndex = index;             }         }     } }

 

▶ AFLens.cs

namespace Bridge {     class AFLens:Lens     {         public override string Take(string subject, int distance)         {             AutoFocusing(distance);             subject = Processing(subject);             return MakePicture(subject,distance);         }           void AutoFocusing(int distance)         {             //먼 거리에 있을 때 줌 레벨을 높인다.             while (distance > FocusLevel)             {                 FocusUp();             }               //가까운 거리에 있을 때 줌 레벨을 낮춘다.             while(distance<FocusLevel)             {                 FocusDown();             }         }             string Processing(string subject)         {             int mcount = ModuleCount;               //내부에 장착된 모듈들을 이용하여 영상 처리             for(int i =0; i<mcount; i++)             {                 subject = ImageProcessing(subject,i);             }             return subject;         }     } }

 

▶ MFLens.cs

using System; namespace Bridge {     class MFLens:Lens     {         public override string Take(string subject, int distance)         {             int mindex = ModuleIndex;             int mcount = ModuleCount;             if((mindex>=0)&&(mindex<mcount))             {                 subject = ImageProcessing(subject,mindex);             }             return MakePicture(subject, FocusLevel);         }         public override void FocusUp()         {             base.FocusUp();             Console.WriteLine("현재 FocusLevel:{0}",FocusLevel);         }         public override void FocusDown()         {             base.FocusDown();             Console.WriteLine("현재 FocusLevel:{0}",FocusLevel);         }     } }

 

▶ Camera.cs

using System; namespace Bridge {     class Camera     {         Lens lens = null;         public int ModuleCount         {             get             {                 if( lens!=null )                 {                     return lens.ModuleCount;                 }                 return -1;             }         }           public void SetModuleIndex(int index)         {             if(lens!=null)             {                 lens.SetModuleIndex(index);             }         }           public void PutInLens(Lens lens)         {             this.lens = lens;         }         public void TakeAPicture(string subject,int distance)         {             Console.WriteLine("피사체:{0}",subject);             string picture = "■";             if(lens!=null)             {                picture = lens.Take(subject,distance);             }             Console.WriteLine("사진:{0}",picture);         }         public void FocusUp()         {             if(lens!=null)             {                 lens.FocusUp();             }         }         public void FocusDown()         {             if(lens!=null)             {                 lens.FocusDown();             }         }     } }

 

▶ Program.cs

using System;   namespace Bridge {     class Program     {         static void Main(string[] args)         {              Camera camera = new Camera();             TestAFVRPCLens(camera);             TestMFVRLens(camera);         }           static void TestAFVRPCLens(Camera camera)         {             Console.WriteLine("AFVRPCLens 테스트");             VRModule vr = new VRModule();             PCModule pc = new PCModule();             Lens lens = new AFLens();             lens.AddModule(vr);             lens.AddModule(pc);             camera.PutInLens(lens);             camera.TakeAPicture("잎사귀떨림(0) 사람떨림(1) 건물(2) 산(3)", 1);                    }         static void TestMFVRLens(Camera camera)         {             Console.WriteLine("MFVRLens 테스트");             IImageProcessing module = new VRModule();             Lens lens = new MFLens();             lens.AddModule(module);             camera.PutInLens(lens);             camera.TakeAPicture("잎사귀떨림(0) 사람떨림(1) 건물(2) 산(3)", 1);             camera.FocusUp();             camera.TakeAPicture("잎사귀떨림(0) 사람떨림(1) 건물(2) 산(3)", 1);             camera.FocusDown();             camera.SetModuleIndex(0);             camera.TakeAPicture("잎사귀떨림(0) 사람떨림(1) 건물(2) 산(3)", 1);                    }     } }