- Qt 5.3
- Qt Multimedia
- Spectrum Example
- frequencyspectrum.cpp Example File
- Qt 5.3.2 Reference Documentation

# frequencyspectrum.cpp Example File

spectrum/app/frequencyspectrum.cpp

    /****************************************************************************
    **
    ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
    ** Contact: http://www.qt-project.org/legal
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    ** This file is part of the examples of the Qt Toolkit.
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    ** $QT_BEGIN_LICENSE:BSD$
    ** You may use this file under the terms of the BSD license as follows:
    **
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    #include "frequencyspectrum.h"

    FrequencySpectrum::FrequencySpectrum(int numPoints)
        :   m_elements(numPoints)
    {

    }

    void FrequencySpectrum::reset()
    {
        iterator i = begin();
        for ( ; i != end(); ++i)
            *i = Element();
    }

    int FrequencySpectrum::count() const
    {
        return m_elements.count();
    }

    FrequencySpectrum::Element &FrequencySpectrum::operator[](int index)
    {
        return m_elements[index];
    }

    const FrequencySpectrum::Element &FrequencySpectrum::operator[](int index) const
    {
        return m_elements[index];
    }

    FrequencySpectrum::iterator FrequencySpectrum::begin()
    {
        return m_elements.begin();
    }

    FrequencySpectrum::iterator FrequencySpectrum::end()
    {
        return m_elements.end();
    }

    FrequencySpectrum::const_iterator FrequencySpectrum::begin() const
    {
        return m_elements.begin();
    }

    FrequencySpectrum::const_iterator FrequencySpectrum::end() const
    {
        return m_elements.end();
    }