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/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
* Qwt Widget Library
* Copyright (C) 1997 Josef Wilgen
* Copyright (C) 2002 Uwe Rathmann
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the Qwt License, Version 1.0
*****************************************************************************/
#ifndef QWT_PLOT_DICT
#define QWT_PLOT_DICT
#include "qwt_global.h"
#include "qwt_plot_classes.h"
#include <qintdict.h>
//
// Template classes used by QwtPlot
//
template<class type>
class QWT_EXPORT QwtSeqDict : public QIntDict<type>
{
public:
QwtSeqDict(): QIntDict<type>() {}
void insert(long key, const type *item)
{
uint prime;
if ((uint(key) >= this->size()) && (prime = nextPrime(uint(key))))
this->resize(prime);
QIntDict<type>::insert(key, item);
}
private:
uint nextPrime(uint i)
{
// first primes bigger than 1<<n for n = 2, 3, .., 15
uint primes[] =
{
17,
37,
67,
131,
257,
521,
1031,
2053,
4099,
8209,
16411,
32771,
};
for (uint j=0; j<sizeof(primes); j++)
{
if (i<primes[j])
return primes[j];
}
return 0;
}
};
class QWT_EXPORT QwtCurveDict : public QwtSeqDict<QwtPlotCurve>
{
public:
QwtCurveDict() { setAutoDelete(TRUE); }
};
class QWT_EXPORT QwtMarkerDict : public QwtSeqDict<QwtPlotMarker>
{
public:
QwtMarkerDict() { setAutoDelete(TRUE); }
};
typedef QIntDictIterator<QwtPlotCurve> QwtPlotCurveIterator;
typedef QIntDictIterator<QwtPlotMarker> QwtPlotMarkerIterator;
#endif
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