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//***********************************************************
// Copyright © 2008 Valentin Pavlyuchenko
//
// This file is part of Boltun.
//
// Boltun is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 2 of the License, or
// (at your option) any later version.
//
// Boltun 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Boltun. If not, see <http://www.gnu.org/licenses/>.
//
//***********************************************************
#ifndef StringChooserH
#define StringChooserH
#include <vector>
#include <string>
template<class container = std::vector<tstring> >
class ValueChooser
{
private:
int freeNumbers;
bool *numbers;
const container data;
bool notifyOnReset;
public:
ValueChooser(const container& vec, bool NotifyOnReset = false)
:data(vec), notifyOnReset(NotifyOnReset)
{
//randomize();
numbers = NULL;
UpdateLength();
}
~ValueChooser()
{
delete numbers;
}
void UpdateLength()
{
delete numbers; //normal if numbers == NULL
numbers = new bool[data.size()];
Reset();
}
void Reset()
{
for (size_t i = 0; i < data.size(); i++)
numbers[i] = false;
freeNumbers = (int)data.size();
}
typename container::value_type GetString()
{
if (!freeNumbers)
{
Reset();
if (notifyOnReset)
return _T("");
}
int result;
while (numbers[result = rand() % data.size()])
;
freeNumbers--;
numbers[result] = true;
return data[result];
}
container GetContainer() const;
};
template<class container>
container ValueChooser<container>::GetContainer() const
{
return data;
}
#endif
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