pancake.hpp

来自「深入浅出设计模式（书配套c++源代码)。包含20个设计模式的c++实现。」· HPP 代码 · 共 48 行

#ifndef	_HFDP_CPP_VISITOR_PANCAKE_HPP_
#define _HFDP_CPP_VISITOR_PANCAKE_HPP_

namespace HeadFirstDesignPatterns {
namespace Visitor {
namespace Menus {

class Pancake : public Ingredient {

	public: explicit Pancake( float amount = 1.0f ) :
		Ingredient( amount ) {
	}
	public: void accept( Visitor* visitor ) { assert( visitor );
		return visitor->visit( this );
	}
	public: float getCalories() const {
		return 86.0f;
	};
	public: float getCarbs() const {
		return 11.0f;
	};
	public: float getProtien() const {
		return 2.0f;
	}
	public: float getFat() const {
		return 4.0f;
	}
	public: float getCholesterol() const {
		return 0.22f;
	}
	public: float getSodium() const {
		return 0.167f;
	}
	public: bool isVegetarian() const {
		return true;
	}
	public: std::string toString() const {
		std::stringstream result;
		result << "Pancake(" << _amount << ")";
		return result.str();
	}
};

} // namespace Menus
} // namespace Visitor
} // namespace HeadFirstDesignPatterns

#endif