/**
 * decorator.h
 * Implemented by Blueprint Technologies, Inc.
 */

#ifndef _decorator_h
#define _decorator_h

/**
 * Defines the interface for objects that can have responsibilities
 * added to them dynamically.
 */

class Component
{

public:
	virtual void operation() = 0;

};

/**
 * Defines an object to which additional responsibilities
 * can be attached.
 */

class ConcreteComponent: public Component
{

public:
	virtual void operation()
	{
	};

};

/**
 * Maintains a reference to a Component object and defines
 * an interface that conforms to Component's interface.
 */

class Decorator: public Component
{

private:
	Component* component;

public:
	virtual void operation()
	{
		component -> operation();
	};

	/**
	 * Accessors.
	 */

	Component* getComponent()
	{
		return component;
	};

	void setComponent( Component* component )
	{
		this -> component = component;
	};

};

/**
 * Adds responsibilities to the component.
 */

class ConcreteDecoratorA: public Decorator
{

private:
	int addedState;

public:
	virtual void operation()
	{
	};

};

/**
 * Adds responsibilities to the component.
 */

class ConcreteDecoratorB: public Decorator
{

public:
	virtual void operation()
	{
		Decorator::operation();
		addedBehavior();
	};

	void addedBehavior()
	{
	};
};

#endif