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/* -*- c++ -*- */
/*
* Copyright 2012 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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 3, or (at your option)
* any later version.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include <cmath>
#include <QMessageBox>
#include <qtgui/freqdisplayform.h>
#include <iostream>
FreqDisplayForm::FreqDisplayForm(int nplots, QWidget* parent)
: DisplayForm(nplots, parent)
{
_intValidator = new QIntValidator(this);
_intValidator->setBottom(0);
_layout = new QGridLayout(this);
_displayPlot = new FrequencyDisplayPlot(nplots, this);
_layout->addWidget(_displayPlot, 0, 0);
setLayout(_layout);
_numRealDataPoints = 1024;
_fftsize = 1024;
_fftavg = 1.0;
FFTSizeMenu *sizemenu = new FFTSizeMenu(this);
FFTAverageMenu *avgmenu = new FFTAverageMenu(this);
FFTWindowMenu *winmenu = new FFTWindowMenu(this);
_menu->addMenu(sizemenu);
_menu->addMenu(avgmenu);
_menu->addMenu(winmenu);
connect(sizemenu, SIGNAL(whichTrigger(int)),
this, SLOT(setFFTSize(const int)));
connect(avgmenu, SIGNAL(whichTrigger(float)),
this, SLOT(setFFTAverage(const float)));
connect(winmenu, SIGNAL(whichTrigger(gr::filter::firdes::win_type)),
this, SLOT(setFFTWindowType(const gr::filter::firdes::win_type)));
Reset();
connect(_displayPlot, SIGNAL(plotPointSelected(const QPointF)),
this, SLOT(onPlotPointSelected(const QPointF)));
}
FreqDisplayForm::~FreqDisplayForm()
{
// Qt deletes children when parent is deleted
// Don't worry about deleting Display Plots - they are deleted when parents are deleted
delete _intValidator;
}
FrequencyDisplayPlot*
FreqDisplayForm::getPlot()
{
return ((FrequencyDisplayPlot*)_displayPlot);
}
void
FreqDisplayForm::newData(const QEvent *updateEvent)
{
FreqUpdateEvent *fevent = (FreqUpdateEvent*)updateEvent;
const std::vector<double*> dataPoints = fevent->getPoints();
const uint64_t numDataPoints = fevent->getNumDataPoints();
getPlot()->plotNewData(dataPoints, numDataPoints,
0, 0, 0, d_update_time);
}
void
FreqDisplayForm::customEvent( QEvent * e)
{
if(e->type() == FreqUpdateEvent::Type()) {
newData(e);
}
}
int
FreqDisplayForm::getFFTSize() const
{
return _fftsize;
}
float
FreqDisplayForm::getFFTAverage() const
{
return _fftavg;
}
gr::filter::firdes::win_type
FreqDisplayForm::getFFTWindowType() const
{
return _fftwintype;
}
void
FreqDisplayForm::setSampleRate(const QString &samprate)
{
setFrequencyRange(_center_freq, samprate.toDouble());
}
void
FreqDisplayForm::setFFTSize(const int newsize)
{
_fftsize = newsize;
getPlot()->replot();
}
void
FreqDisplayForm::setFFTAverage(const float newavg)
{
_fftavg = newavg;
getPlot()->replot();
}
void
FreqDisplayForm::setFFTWindowType(const gr::filter::firdes::win_type newwin)
{
_fftwintype = newwin;
getPlot()->replot();
}
void
FreqDisplayForm::setFrequencyRange(const double centerfreq,
const double bandwidth)
{
std::string strunits[4] = {"Hz", "kHz", "MHz", "GHz"};
double units10 = floor(log10(bandwidth));
double units3 = std::max(floor(units10 / 3.0), 0.0);
double units = pow(10, (units10-fmod(units10, 3.0)));
int iunit = static_cast<int>(units3);
_center_freq = centerfreq;
_samp_rate = bandwidth;
getPlot()->setFrequencyRange(centerfreq, bandwidth,
units, strunits[iunit]);
}
void
FreqDisplayForm::setYaxis(double min, double max)
{
getPlot()->setYaxis(min, max);
}
void
FreqDisplayForm::autoScale(bool en)
{
if(en) {
_autoscale_state = true;
}
else {
_autoscale_state = false;
}
getPlot()->setAutoScale(_autoscale_state);
getPlot()->replot();
}
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