khanat-opennel-code/code/nel/tools/3d/object_viewer/range_manager.h

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2010-05-06 00:08:41 +00:00
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#ifndef RANGE_MANAGER_H
#define RANGE_MANAGER_H
#include <map>
#include <string>
#include "nel/misc/stream.h"
/** This class records the ranges used for edition (for a given slider).
* It enables the user to set the range that match best what he wants
* full ASCII names are used as identifier
*/
template <class T> class CRangeManager
{
public:
/** retrieve the range used for a given ID.
* If the ID wasn't present, a new entry is created, and the given values are returned
*/
static std::pair<T, T> GetRange(const std::string &id, const T &minRange, const T &maxRange)
{
nlassert(id != "");
if (_RangeMap.count(id) == 0) // not present yet ?
{
_RangeMap[id] = std::pair<T, T>(minRange, maxRange);
}
return _RangeMap[id];
}
/** the same but no default values are provided. An assertion occurs if not present.
* In release build, the entrie is created, but with uninitialized values ...
*/
static std::pair<T, T> GetRange(const std::string &id)
{
nlassert(id != "");
return _RangeMap[id];
}
/// set a new value for the given range
static void SetRange(const std::string &id, const T &minRange, const T &maxRange)
{
nlassert(id != "");
_RangeMap[id] = std::pair<T, T>(minRange, maxRange);
}
/// serialization
static void serial(NLMISC::IStream &f) throw(NLMISC::EStream)
{
uint32 size;
if (!f.isReading())
{
size = _RangeMap.size();
f.serial(size);
for (TRangeMap::const_iterator it = _RangeMap.begin(); it != _RangeMap.end(); ++it)
{
std::string s = it->first;
f.serial(s);
std::pair<T , T> value = it->second;
f.serial(value.first);
f.serial(value.second);
}
}
else
{
_RangeMap.clear();
f.serial(size);
while (size --)
{
std::string id;
std::pair<T , T> value;
f.serial(id);
f.serial(value.first);
f.serial(value.second);
_RangeMap[id] = value;
}
}
}
typedef std::map< std::string, std::pair<T, T> > TRangeMap;
protected:
// the map that contains the ID, and their range values
static TRangeMap _RangeMap;
};
#endif