urho3d/Engine/Common/HashedType.h

//
// Urho3D Engine
// Copyright (c) 2008-2011 Lasse Öörni
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//

#ifndef COMMON_HASHEDTYPE_H
#define COMMON_HASHEDTYPE_H

#include "RefCount.h"
#include "StringHash.h"

#define DEFINE_TYPE(typeName) \
    public: \
        virtual ShortStringHash getType() const { return getTypeStatic(); } \
        virtual const std::string& getTypeName() const { return getTypeNameStatic(); } \
        static ShortStringHash getTypeStatic() \
        { \
            static const ShortStringHash type(#typeName); \
            return type; \
        } \
        static const std::string& getTypeNameStatic() \
        { \
            static const std::string name = #typeName; \
            return name; \
        } \

//! Base class for objects which can be searched for by type
class HashedType : public RefCounted
{
public:
    virtual ShortStringHash getType() const = 0;
    virtual const std::string& getTypeName() const = 0;
};

#endif // COMMON_HASHEDTYPE_H