架构训练营第三章课后作业单例模式 组合模式

1. 请在草稿纸上手写一个单例模式的实现代码，拍照提交作业。





2. 请用组合设计模式编写程序，打印输出图 1 的窗口，窗口组件的树结构如图 2 所示，打印输出示例参考图 3。





GUI 实现有3个重点在GUI树形结构组织、刷新绘制机制、事件响应机制



#include "stdafx.h"

#include "stdio.h"

#include "stdlib.h"

#include "string.h"

#include <string>

#include <vector>

#define Uint16 unsigned int



class sonoWidget

{

public:

sonoWidget(const std::string & type,const std::string & caption)

{

m_Caption = caption;

m_Type = type;

}



virtual bool addWidget()

{

return true;

}



virtual void draw()

{

return;

}



virtual sonoWidget::~ sonoWidget()

{



}



protected:

std::string m_Caption;//组件标题

std::string m_Type;//组件类型

};



//叶子

class sonoLeafWidget : public sonoWidget

{

public:

sonoLeafWidget(const std::string & type,const std::string & caption):sonoWidget(type,caption)

{

}



virtual ~ sonoLeafWidget()

{



}



virtual void draw()

{

printf("print %s (%s)\n",mType.cstr(),mCaption.cstr());

}



virtual bool addWidget(sonoWidget * win)

{

return true;

}

};



//容器

class sonoContainer : public sonoWidget

{

public:



sonoContainer(const std::string & type,const std::string & caption):sonoWidget(type,caption)

{



}



virtual ~ sonoContainer()

{

for (Uint16 i = 0; i < m_Children.size(); i++)

{

delete m_Children[i];

}

m_Children.clear();

}



virtual void draw()

{

printf("print %s (%s)\n",mType.cstr(),mCaption.cstr());

for (Uint16 i = 0; i < m_Children.size(); i++)

{

m_Children[i]->draw();

}

}



virtual bool addWidget(sonoWidget * win)

{

if (!win || win == this)

return false;



std::vector<sonoWidget *>::iterator p = std::find(mChildren.begin(), mChildren.end(), win);



if (p == m_Children.end())

{

mChildren.pushback(win);

return true;

}

return false;

}



private:

std::vector<sonoWidget *> m_Children;

};



int tmain(int argc, TCHAR* argv[])

{

sonoContainer *winMainForm = new sonoContainer("WinForm","WINDOW窗口");



//login 界面

sonoLeafWidget * picLogopic = new sonoLeafWidget("Picture","LOGO图片");

sonoLeafWidget * btnLogin = new sonoLeafWidget("Button","登录");

sonoLeafWidget * btnRegister = new sonoLeafWidget("Button","注册");



//login 用户信息输入界面

sonoContainer *frameFrame = new sonoContainer("Frame","FRAME1");



winMainForm->addWidget(picLogopic);

winMainForm->addWidget(btnLogin);

winMainForm->addWidget(btnRegister);

winMainForm->addWidget(frameFrame);



sonoLeafWidget * lblUserName = new sonoLeafWidget("Label","用户名");

sonoLeafWidget * txtboxUserName = new sonoLeafWidget("TextBox","文本框");

sonoLeafWidget * lblPassWord = new sonoLeafWidget("Label","密码");

sonoLeafWidget * txtBoxPassWord = new sonoLeafWidget("PassWordBox","密码框");

sonoLeafWidget * chkBoxRememberUser = new sonoLeafWidget("CheckBox","复选框");

sonoLeafWidget * txtboxRememberUser = new sonoLeafWidget("TextBox","记忆用户");

sonoLeafWidget * llblForgetPassWord = new sonoLeafWidget("LinkLabel","忘记密码");



frameFrame->addWidget(lblUserName);

frameFrame->addWidget(txtboxUserName);

frameFrame->addWidget(lblPassWord);

frameFrame->addWidget(txtBoxPassWord);

frameFrame->addWidget(chkBoxRememberUser);

frameFrame->addWidget(txtboxRememberUser);

frameFrame->addWidget(llblForgetPassWord);



//绘制输出

winMainForm->draw();



delete winMainForm;

winMainForm=NULL;

printf("end\n");

return 0;

}