郭新乐软件设计与体系结构-实验4

郭新乐软件设计与体系结构-实验4郭新乐软件设计与体系结构-实验4郭新乐软件设计与体系结构-实验4资料仅供参考文件编号：2022年4月郭新乐软件设计与体系结构-实验4版本号：A修改号：1页次：1.0审核：批准:发布日期：大连海事大学软件设计与体系结构课程实验报告（2015-2016学年第一学期）实验四设计模式应用班级：计算机科学与技术2班学号：51姓名：程子璇指导教师：谢兄成绩：2016年01月02日

目录1 实验目的 32 实验内容 33 实验要求 34 实验步骤 35 总结与体会 12 实验中出现的问题及其解决方案 12 总结 12 体会 121实验目的利用Observer、单件等设计模式开发实现一个小的系统。通过常用的设计模式的实例实验，熟悉设计模式特点及应用条件，掌握基于设计模式的软件系统的设计与开发应用。实验内容用C++语言实现系统。利用设计模式设计并实现一个简单的图形编辑系统。程序截图实验要求深入复习教材中介绍的各种设计模式。实验步骤和实验总结中要详细描述实验过程中出现的问题、原因和解决方法。实验步骤采用单件设计模式设计抽象工厂类，画出类结构图，写出类结构图对应的代码原型，并写出相应的主函数中的实现代码。 类结构图代码原型namespaceges{ classAbstractFactory{ public: ~AbstractFactory(){ if(_count==1){ if(_pInstance){ delete_pInstance; } } --_count; } protected: AbstractFactory(){} public: virtualLine*CreateProductLine(constint&posX0,constint&posY0, constint&posX1,constint&posY1,constint&id) {returnnullptr;} virtualSymbol*CreateProductSymbol(constint&posX,constint&posY,constint&id) {returnnullptr;} virtualText*CreateProductText(constint&posX,constint&posY,constint&id) {returnnullptr;} virtualRectangle*CreateProductRectangle(constint&posX0,constint&posY0,constint&posX1,constint&posY1,constint&id) {returnnullptr;} virtualPicture*CreateProductPicture(constint&id){returnnewPicture(id);}; public: staticAbstractFactory*CreateInstance(){ if(nullptr==_pInstance){ _pInstance=newAbstractFactory(); } ++_count; return_pInstance; } protected: static AbstractFactory* _pInstance; static int _count; }; classConcreteFactory1:publicAbstractFactory{ public: ~ConcreteFactory1(){ if(_count==1){ if(_pInstance){ delete_pInstance; } } --_count; } private: ConcreteFactory1() {} public: virtualLine*CreateProductLine(constint&posX0,constint&posY0, constint&posX1,constint&posY1,constint&id)override{ returnnewLine1(posX0,posY0,posX1,posY1,id); } virtualSymbol*CreateProductSymbol(constint&posX,constint&posY,constint&id)override{ returnnewSymbol1(posX,posY,id); } virtualText*CreateProductText(constint&posX,constint&posY,constint&id)override{ returnnewText1(TEXT("双击输入标注内容"),posX,posY,id); } virtualRectangle*CreateProductRectangle(constint&posX0,constint&posY0,constint&posX1,constint&posY1,constint&id)override{ returnnewRectangle1(posX0,posY0,posX1,posY1,id); } if(FALSE==WriteFile(hFile,>,sizeof(int),&bw,nullptr)) returnfalse; for(auto&pObj:_pGraphics){ if(FALSE==WriteFile(hFile,&group,sizeof(int),&bw,nullptr)) returnfalse; if(false==pObj->Save(hFile)){ CloseHandle(hFile); returnfalse; } } returntrue; } virtual boolLoad(HANDLEhFile)override; virtualintQueryInterface()constoverride{ returnGT_PICTURE; } public: virtualboolIsHit(constint&x,constint&y)constoverride{ for(auto&pObj:_pGraphics){ if(pObj->IsHit(x,y)) returntrue; } returnfalse; } virtualvoidGetGraphicsPtrs(std::vector<Graphic*>&pGraphics)const{ pGraphics=_pGraphics; } public: inline voidSetReal(constbool&real){_real=real;} private: std::vector<Graphic*> _pGraphics; bool _real; };namespaceges{ classClient; } }; classLineabstract:publicGraphic{ public: Line(constint&id):Graphic(id){} public: virtualvoidSetStartPos(constint&posX,constint&posY)=0; virtualvoidSetEndPos(constint&posX,constint&posY)=0; virtualvoidSetText(TCHAR*pText)=0; public: virtualboolIsPossibleToViewThis()const=0; public: } }; classTextabstract:publicGraphic{ public: Text(constint&id):Graphic(id){} public: virtualvoidSetFontSize(constint&fontSize)=0; virtualvoidSetText(TCHAR*pText)=0; public: } }; classRectangleabstract:publicGraphic { public: Rectangle(constint&id):Graphic(id){} public: virtualvoidSetStartPos(constint&posX,constint&posY)=0; virtualvoidSetEndPos(constint&posX,constint&posY)=0; virtualboolIsPossibleToViewThis()const=0; public: } }; classLine1:publicLine{ public: Line1(constint&posX0,constint&posY0, constint&posX1,constint&posY1,constint&id); ~Line1(); public: } private: int _posX0; int _posY0; int _posX1; int _posY1; }; classLine2:publicLine{ public: Line2(TCHAR*pText,constint&posX0,constint&posY0, constint&posX1,constint&posY1,constint&id); ~Line2(); public: } private: int _posX0; int _posY0; int _posX1; int _posY1; public: TCHAR* _pText; }; classText1:publicText{ public: Text1(TCHAR*pText,constint&posX,constint&posY,constint&id); ~Text1(); public: } public: virtualvoidSetFontSize(constint&fontSize)override; virtualvoidSetText(TCHAR*pText)override; private: int _posX; int _posY; int _font_size; TCHAR* _pText; HFONT _hFont; }; classText2:publicText{ public: Text2(TCHAR*pText,constint&posX,constint&posY,constint&id); ~Text2(); public: } public: virtualvoidSetFontSize(constint&fontSize)override; virtualvoidSetText(TCHAR*pText)override; private: int _posX; int _posY; int _font_size; TCHAR* _pText; HFONT _hFont; }; classRectangle1:publicRectangle{ public: Rectangle1(constint&posX0,constint&posY0, constint&posX1,constint&posY1,constint&id); ~Rectangle1(); public: virtualvoidSetStartPos(constint&posX,constint&posY)override; virtualvoidSetEndPos(constint&posX,constint&posY)override; public: } private: int _posX0; int _posY0; int _posX1; int _posY1; }; classRectangle2:publicRectangle { public: Rectangle2(constint&posX0,constint&posY0, constint&posX1,constint&posY1,constint&id); ~Rectangle2(); public: virtualvoidSetStartPos(constint&posX,constint&posY)override; virtualvoidSetEndPos(constint&posX,constint&posY)override; public: } private: int _posX0; int _posY0; int _posX1; int _posY1; }; classSymbol1:publicSymbol{ public: Symbol1(constint&posX,constint&posY,constint&id); ~Symbol1(); public: } public: virtualvoidSetText(TCHAR*pText)override{} private: int _posX; int _posY; float _size; }; classSymbol2:publicSymbol{ public: Symbol2(TCHAR*pText,constint&posX,constint&posY,constint&id); ~Symbol2(); public: } public: virtualvoid SetText(TCHAR*pText)override; private: int _posX; int _posY; float _size; TCHAR* _pText; };} Attach(_tempGraphicObj[2]); _tempGraphicObj[2]=nullptr; } _optState=None; hdc=GetDC(_hWnd); break; caseToAddSymbol2: _pFactory=ConcreteFactory2::CreateInstance(); pGraphic=_pFactory->CreateProductSymbol(vX,vY,_idPool); ++_idPool; Attach(pGraphic); _optState=None; break; caseToAddLine1: _pFactory=ConcreteFactory1::CreateInstance(); pGraphic=_pFactory->CreateProductLine(vX,vY,vX,vY,_idPool); ++_idPool; Attach(pGraphic); _tempGraphicObj[0]=pGraphic; _optState=AddingLine1; break; caseToAddLine2: _pFactory=ConcreteFactory2::CreateInstance(); pGraphic=_pFactory->CreateProductLine(vX,vY,vX,vY,_idPool); ++_idPool; Attach(pGraphic); _tempGraphicObj[0]=pGraphic; _optState=AddingLine2; break; caseToAddText1: _pFactory=ConcreteFactory1::CreateInstance(); pGraphic=_pFactory->CreateProductText(vX,vY,_idPool); ++_idPool; Attach(pGraphic); _optState=None; break; caseToAddText2: _pFactory=ConcreteFactory2::CreateInstance(); pGraphic=_pFactory->CreateProductText(vX,vY,_idPool); ++_idPool; Attach(pGraphic); _optState=None; break; caseToAddRectangle1: _pFactory=ConcreteFactory1::CreateInstance(); pGraphic=_pFactory->CreateProductRectangle(vX,vY,vX,vY,_idPool); ++_idPool; Attach(pGraphic); _tempGraphicObj[0]=pGraphic; _optState=AddingRectangle1; break; caseToAddRectangle2: _pFactory=ConcreteFactory2::CreateInstance(); pGraphic=_pFactory->CreateProductRectangle(vX,vY,vX,vY,_idPool); ++_idPool; Attach(pGraphic); _tempGraphicObj[0]=pGraphic; _optState=AddingRectangle1; break; _optState=None; break; default: i=0; for(auto&pObserver:_pObservers){ if(pObserver->IsHit(vX,vY)){ ++i; if((MK_SHIFT|MK_LBUTTON)==wParam){ es)\0*.ges\0所有文件(*.*)\0*.*\0\0"); =l_szFileName; =1; =OFN_PATHMUSTEXIST|OFN_FILEMUSTEXIST; if(::GetOpenFileName(&l_str_ofn)){ if(false==g_pClient->LoadFile(l_szFileName)){ MessageBox(hWnd,TEXT("Failedtoload."),TEXT("Error"),MB_OK); } } break; caseID_FILE_SAVE: if(0==lstrlen(l_szFileName)) goto____lable_save_as; if(false==g_pClient->SaveFile(l_szFileName)){ MessageBox(hWnd,TEXT("Failedtosave."),TEXT("Error"),MB_OK); } break; caseID_FILE_SAVEAS:____lable_save_as: memset(&l_str_ofn,0,sizeof(l_str_ofn)); =sizeof(OPENFILENAME); =MAX_PATH; =TEXT("GES图形文件(*.ges)\0*.ges\0所有文件(*.*)\0*.*\0\0"); =l_szFileName; =1; =OFN_PATHMUSTEXIST|OFN_FILEMUSTEXIST; if(::GetSaveFileName(&l_str_ofn)){ if(false==g_pClient->SaveFile(l_szFileName)){