init repo

ActiveX/Common/ASCDocxFormat/Source/Utility/Setter.h

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+/*
+ * (c) Copyright Ascensio System SIA 2010-2014
+ *
+ * This program is a free software product. You can redistribute it and/or 
+ * modify it under the terms of the GNU Affero General Public License (AGPL) 
+ * version 3 as published by the Free Software Foundation. In accordance with 
+ * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect 
+ * that Ascensio System SIA expressly excludes the warranty of non-infringement
+ * of any third-party rights.
+ *
+ * This program is distributed WITHOUT ANY WARRANTY; without even the implied 
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For 
+ * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
+ *
+ * You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
+ * EU, LV-1021.
+ *
+ * The  interactive user interfaces in modified source and object code versions
+ * of the Program must display Appropriate Legal Notices, as required under 
+ * Section 5 of the GNU AGPL version 3.
+ *
+ * Pursuant to Section 7(b) of the License you must retain the original Product
+ * logo when distributing the program. Pursuant to Section 7(e) we decline to
+ * grant you any rights under trademark law for use of our trademarks.
+ *
+ * All the Product's GUI elements, including illustrations and icon sets, as
+ * well as technical writing content are licensed under the terms of the
+ * Creative Commons Attribution-ShareAlike 4.0 International. See the License
+ * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
+ *
+ */
+ #pragma once
+#ifndef UTILITY_SETTER_INCLUDE_H_
+#define UTILITY_SETTER_INCLUDE_H_
+
+#include <stdexcept>
+#include <algorithm>
+#include <set>
+
+#include "CallTraits.h"
+
+namespace setter
+{
+	template<typename Type>	class base_setter
+	{
+	protected:
+		typedef typename NSCallTraits<Type>::param_type Parameter;
+
+	public:
+		void operator()(Type& _value, Parameter value)
+		{
+			
+		}
+	};
+
+	class none
+	{
+	public:
+		template<typename T, typename E>
+		void operator()(T, E)
+		{
+		}
+	};
+
+	template<typename Type>
+	class simple : private base_setter<Type>
+	{
+	public:
+		void operator()(Type& _value, Parameter value)
+	    {
+			_value = value;
+		}
+	};
+
+	class read_only
+	{
+	public:
+		template<typename T, typename E>
+		void operator()(T, E)
+		{
+			
+		}
+	};
+
+	template<typename Type>
+	class only_positive : private base_setter<Type>
+	{
+	public:
+		void operator()(Type& _value, Parameter value)
+		{
+			_value = value < static_cast<Type>(0) ? static_cast<Type>(0) : value;
+		}
+	};
+
+
+	template<typename Type, int min_value = 0, int max_value = min_value>
+	class between : private base_setter<Type>
+	{
+	public:
+		void operator()(Type& _value, Parameter value)
+		{
+			if (value < min_value)
+				_value = min_value;
+			else if (max_value < value)
+				_value = max_value;
+			else
+				_value = value;
+		}
+	};
+
+
+	template<typename Type, int min_value = 0, int max_value = min_value>
+	class between_throw : private base_setter<Type>
+	{
+	public:
+		void operator()(Type& _value, Parameter value)
+		{
+			if (value < min_value)
+				throw std::range_error("between error");
+			else if (max_value < value)
+				throw std::range_error("between error");
+			else
+				_value = value;
+		}
+	};
+
+
+	template<typename Type>
+	class interval : private base_setter<Type>
+	{
+	public:
+		interval(Parameter min, Parameter max)
+			:	_min(min),
+				_max(max)
+		{
+			if (_max < _min)
+				std::swap(_min, _max);
+		}
+
+		void operator()(Type& _value, Parameter value)
+		{
+			if (value < _min)
+				_value = _min;	
+			else if (_max < value)
+				_value = _max;
+			else
+				_value = value;
+		}
+
+	private:
+		Type _min;
+		Type _max;
+	};
+
+
+	template<typename Type>
+	class interval_throw : private base_setter<Type>
+	{
+	public:
+		interval_throw(Parameter min, Parameter max)
+			:	_min(min),
+				_max(max)
+		{
+			if (_max < _min)
+				std::swap(_min, _max);
+		}
+
+		void operator()(Type& _value, Parameter value)
+		{
+			if (value < _min)
+				throw std::range_error("interval error");
+			else if (_max < value)
+				throw std::range_error("interval error");
+			else
+				_value = value;
+		}
+
+	private:
+		Type _min;
+		Type _max;
+	};
+
+
+	template<typename Type>
+	class from : private base_setter<Type>
+	{
+	protected:
+		void add(Parameter value)
+		{
+			_list.insert(value);
+		}
+
+	private:
+		virtual const Type no_find() const = 0;
+
+	public:
+		void operator()(Type& _value, Parameter value)
+		{
+			if (_list.find(value) != _list.end())
+				_value = value;
+			else
+				_value = no_find();
+		}
+
+	private:
+		std::set<Type>	_list;
+	};
+
+} 
+
+#endif // UTILITY_SETTER_INCLUDE_H_