C++博客-蜗牛的家-随笔分类-设计模式

C++博客-蜗牛的家-随笔分类-设计模式http://www.cppblog.com/bangle/category/8013.html男儿当自强zh-cnSat, 17 Jan 2009 07:19:06 GMTSat, 17 Jan 2009 07:19:06 GMT60decorator模式http://www.cppblog.com/bangle/archive/2009/01/16/72177.html黑色天使黑色天使Fri, 16 Jan 2009 07:58:00 GMThttp://www.cppblog.com/bangle/archive/2009/01/16/72177.htmlhttp://www.cppblog.com/bangle/comments/72177.htmlhttp://www.cppblog.com/bangle/archive/2009/01/16/72177.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/72177.htmlhttp://www.cppblog.com/bangle/services/trackbacks/72177.html1 适用性
\• 在不影响其他对象的情况下，以动态、透明的方式给单个对象添加一些职责，如：加密层，解密层。
• 处理那些可能偶尔才会用到的特性接口
• 当不能采用生成子类的方法进行扩充时。一种情况是，可能有大量独立的扩展，为支持
每一种组合将产生大量的子类，使得子类数目呈爆炸性增长

#include "stdafx.h"
#include <iostream>
using namespace std;

class Component            //被装饰者抽象类
{
public:
    virtual void Draw() = 0;
};
class Decorator : public Component //被装饰者基类
{
public:
    Decorator(Component *c) : _component(c){}
    ~Decorator() {delete _component;}

    virtual void Draw() { if (_component) _component->Draw();}
private:
    Component *_component;
};
//////////////////////////////////////////////////////////////////////////
class MyComponent : public Component //被装饰者
{
public:
    virtual void Draw() {cout << "MyComponent::Draw()" << endl;}
};
//////////////////////////////////////////////////////////////////////////
class BorderDecorator : public Decorator //边框装饰
{
public:
    BorderDecorator(Component *c) : Decorator(c){}
    virtual void Draw()
    {
        cout << "DrawBorder

" << endl;
        Decorator::Draw();
    }
};
class ScrollDecorator : public Decorator //滚动条装饰
{
public:
    ScrollDecorator(Component *c) : Decorator(c){}
    virtual void Draw()
    {
        cout << "DrawSrollbar

" << endl;
        Decorator::Draw();
    }
};
int main()
{
    Component *c2 = new BorderDecorator(
        new MyComponent()); //装饰边框的组件
    c2->Draw();
    delete c2;

    Component *c3 = new ScrollDecorator(
        new BorderDecorator(
        new MyComponent())); //同时装饰上边框和滚动条的组件
    c2->Draw();
    delete c3;

    system("pause");
    return 0;
}

黑色天使 2009-01-16 15:58 发表评论

]]>MVC模式理解——当年给我一个browser多好（转）http://www.cppblog.com/bangle/archive/2009/01/15/72084.html黑色天使黑色天使Thu, 15 Jan 2009 06:01:00 GMThttp://www.cppblog.com/bangle/archive/2009/01/15/72084.htmlhttp://www.cppblog.com/bangle/comments/72084.htmlhttp://www.cppblog.com/bangle/archive/2009/01/15/72084.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/72084.htmlhttp://www.cppblog.com/bangle/services/trackbacks/72084.html阅读全文

黑色天使 2009-01-15 14:01 发表评论

]]>C++设计模式-趣解http://www.cppblog.com/bangle/archive/2008/08/23/59725.html黑色天使黑色天使Sat, 23 Aug 2008 04:22:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/23/59725.htmlhttp://www.cppblog.com/bangle/comments/59725.htmlhttp://www.cppblog.com/bangle/archive/2008/08/23/59725.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59725.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59725.html阅读全文

黑色天使 2008-08-23 12:22 发表评论

]]>C++设计模式-visitorhttp://www.cppblog.com/bangle/archive/2008/08/23/59724.html黑色天使黑色天使Sat, 23 Aug 2008 04:18:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/23/59724.htmlhttp://www.cppblog.com/bangle/comments/59724.htmlhttp://www.cppblog.com/bangle/archive/2008/08/23/59724.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59724.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59724.html阅读全文

黑色天使 2008-08-23 12:18 发表评论

]]>C++设计模式-Mementohttp://www.cppblog.com/bangle/archive/2008/08/23/59708.html黑色天使黑色天使Fri, 22 Aug 2008 17:42:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/23/59708.htmlhttp://www.cppblog.com/bangle/comments/59708.htmlhttp://www.cppblog.com/bangle/archive/2008/08/23/59708.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59708.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59708.html阅读全文

黑色天使 2008-08-23 01:42 发表评论

]]>C++模式-Iteratorhttp://www.cppblog.com/bangle/archive/2008/08/23/59707.html黑色天使黑色天使Fri, 22 Aug 2008 17:18:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/23/59707.htmlhttp://www.cppblog.com/bangle/comments/59707.htmlhttp://www.cppblog.com/bangle/archive/2008/08/23/59707.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59707.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59707.html阅读全文

黑色天使 2008-08-23 01:18 发表评论

]]>C++设计模式-Observerhttp://www.cppblog.com/bangle/archive/2008/08/21/59593.html黑色天使黑色天使Thu, 21 Aug 2008 15:38:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/21/59593.htmlhttp://www.cppblog.com/bangle/comments/59593.htmlhttp://www.cppblog.com/bangle/archive/2008/08/21/59593.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59593.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59593.html阅读全文

黑色天使 2008-08-21 23:38 发表评论

]]>C++设计模式-Commandhttp://www.cppblog.com/bangle/archive/2008/08/20/59481.html黑色天使黑色天使Wed, 20 Aug 2008 15:32:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/20/59481.htmlhttp://www.cppblog.com/bangle/comments/59481.htmlhttp://www.cppblog.com/bangle/archive/2008/08/20/59481.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59481.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59481.html阅读全文

黑色天使 2008-08-20 23:32 发表评论

]]>C++模式-FlyWeighthttp://www.cppblog.com/bangle/archive/2008/08/20/59475.html黑色天使黑色天使Wed, 20 Aug 2008 14:54:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/20/59475.htmlhttp://www.cppblog.com/bangle/comments/59475.htmlhttp://www.cppblog.com/bangle/archive/2008/08/20/59475.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59475.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59475.html阅读全文

黑色天使 2008-08-20 22:54 发表评论

]]>C++设计模式-ChainOfResponsibilityhttp://www.cppblog.com/bangle/archive/2008/08/19/59392.html黑色天使黑色天使Tue, 19 Aug 2008 15:27:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/19/59392.htmlhttp://www.cppblog.com/bangle/comments/59392.htmlhttp://www.cppblog.com/bangle/archive/2008/08/19/59392.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59392.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59392.html阅读全文

黑色天使 2008-08-19 23:27 发表评论

]]>C++设计模式-TemplateMethodhttp://www.cppblog.com/bangle/archive/2008/08/19/59391.html黑色天使黑色天使Tue, 19 Aug 2008 14:54:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/19/59391.htmlhttp://www.cppblog.com/bangle/comments/59391.htmlhttp://www.cppblog.com/bangle/archive/2008/08/19/59391.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59391.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59391.html阅读全文

黑色天使 2008-08-19 22:54 发表评论

]]>C++模式-Proxyhttp://www.cppblog.com/bangle/archive/2008/08/19/59388.html黑色天使黑色天使Tue, 19 Aug 2008 14:23:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/19/59388.htmlhttp://www.cppblog.com/bangle/comments/59388.htmlhttp://www.cppblog.com/bangle/archive/2008/08/19/59388.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59388.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59388.html阅读全文

黑色天使 2008-08-19 22:23 发表评论

]]>C++设计模式-Decoratorhttp://www.cppblog.com/bangle/archive/2008/08/18/59288.html黑色天使黑色天使Mon, 18 Aug 2008 14:45:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/18/59288.htmlhttp://www.cppblog.com/bangle/comments/59288.htmlhttp://www.cppblog.com/bangle/archive/2008/08/18/59288.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59288.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59288.html阅读全文

黑色天使 2008-08-18 22:45 发表评论

]]>C++设计模式-Componenthttp://www.cppblog.com/bangle/archive/2008/08/18/59209.html黑色天使黑色天使Mon, 18 Aug 2008 04:22:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/18/59209.htmlhttp://www.cppblog.com/bangle/comments/59209.htmlhttp://www.cppblog.com/bangle/archive/2008/08/18/59209.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59209.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59209.html阅读全文

黑色天使 2008-08-18 12:22 发表评论

]]>C++设计模式-Bridgehttp://www.cppblog.com/bangle/archive/2008/08/17/59167.html黑色天使黑色天使Sun, 17 Aug 2008 15:11:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/17/59167.htmlhttp://www.cppblog.com/bangle/comments/59167.htmlhttp://www.cppblog.com/bangle/archive/2008/08/17/59167.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59167.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59167.html阅读全文

黑色天使 2008-08-17 23:11 发表评论

]]>C++设计模式-Adapterhttp://www.cppblog.com/bangle/archive/2008/08/17/59088.html黑色天使黑色天使Sat, 16 Aug 2008 18:29:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/17/59088.htmlhttp://www.cppblog.com/bangle/comments/59088.htmlhttp://www.cppblog.com/bangle/archive/2008/08/17/59088.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59088.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59088.html阅读全文

黑色天使 2008-08-17 02:29 发表评论

]]>C++设计模式-Singletonhttp://www.cppblog.com/bangle/archive/2008/08/17/59086.html黑色天使黑色天使Sat, 16 Aug 2008 17:37:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/17/59086.htmlhttp://www.cppblog.com/bangle/comments/59086.htmlhttp://www.cppblog.com/bangle/archive/2008/08/17/59086.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59086.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59086.html阅读全文

黑色天使 2008-08-17 01:37 发表评论

]]>C++设计模式-Prototypehttp://www.cppblog.com/bangle/archive/2008/08/17/59085.html黑色天使黑色天使Sat, 16 Aug 2008 17:16:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/17/59085.htmlhttp://www.cppblog.com/bangle/comments/59085.htmlhttp://www.cppblog.com/bangle/archive/2008/08/17/59085.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59085.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59085.html阅读全文

黑色天使 2008-08-17 01:16 发表评论

]]>C++设计模式-Builderhttp://www.cppblog.com/bangle/archive/2008/08/16/59071.html黑色天使黑色天使Sat, 16 Aug 2008 09:44:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/16/59071.htmlhttp://www.cppblog.com/bangle/comments/59071.htmlhttp://www.cppblog.com/bangle/archive/2008/08/16/59071.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59071.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59071.html阅读全文

黑色天使 2008-08-16 17:44 发表评论

]]>C++设计模式-Fatory Methodhttp://www.cppblog.com/bangle/archive/2008/08/16/59045.html黑色天使黑色天使Sat, 16 Aug 2008 04:13:00 GMThttp://www.cppblog.com/bangle/archive/2008/08/16/59045.htmlhttp://www.cppblog.com/bangle/comments/59045.htmlhttp://www.cppblog.com/bangle/archive/2008/08/16/59045.html#Feedback0http://www.cppblog.com/bangle/comments/commentRss/59045.htmlhttp://www.cppblog.com/bangle/services/trackbacks/59045.html阅读全文

黑色天使 2008-08-16 12:13 发表评论

]]>