122 lines
3.4 KiB
C++
122 lines
3.4 KiB
C++
/**
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* \file lib/generic/graphics/qt/common/Pointplot.h
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* \version 1.0
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*
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* \section COPYRIGHT
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*
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* Copyright 2012-2013 The Iris Project Developers. See the
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* COPYRIGHT file at the top-level directory of this distribution
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* and at http://www.softwareradiosystems.com/iris/copyright.html.
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*
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* \section LICENSE
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*
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* This file is part of the Iris Project.
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*
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* Iris is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* Iris is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* A copy of the GNU Lesser General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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* \section DESCRIPTION
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*
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* Implementation of a plot of complex data values as points on an IQ axis.
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*/
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#include "Pointplot.h"
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#include <algorithm>
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using namespace std;
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class MyZoomer: public QwtPlotZoomer
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{
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public:
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MyZoomer(QwtPlotCanvas *canvas):
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QwtPlotZoomer(canvas)
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{
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setTrackerMode(AlwaysOn);
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}
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virtual QwtText trackerTextF(const QPointF &pos) const
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{
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QColor bg(Qt::white);
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bg.setAlpha(200);
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QwtText text = QwtPlotZoomer::trackerTextF(pos);
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text.setBackgroundBrush( QBrush( bg ));
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return text;
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}
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};
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Pointplot::Pointplot(QWidget *parent)
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:QwtPlot(parent)
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{
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counter_ = 0;
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numPoints_ = 1;
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realPoints_ = new double[numPoints_];
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imagPoints_ = new double[numPoints_];
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QPalette palette;
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palette.setColor(canvas()->backgroundRole(), QColor("white"));
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canvas()->setPalette(palette);
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setAxisScaleEngine(QwtPlot::xBottom, new QwtLinearScaleEngine);
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setAxisTitle(QwtPlot::xBottom, "In-phase");
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setAxisScaleEngine(QwtPlot::yLeft, new QwtLinearScaleEngine);
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setAxisTitle(QwtPlot::yLeft, "Quadrature");
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curve_ = new QwtPlotCurve("Constellation Points");
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curve_->attach(this);
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curve_->setPen(QPen(Qt::blue, 5, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
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curve_->setStyle(QwtPlotCurve::Dots);
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curve_->setRawSamples(realPoints_, imagPoints_, numPoints_);
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memset(realPoints_, 0x0, numPoints_*sizeof(double));
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memset(imagPoints_, 0x0, numPoints_*sizeof(double));
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zoomer_ = new MyZoomer(canvas());
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zoomer_->setMousePattern(QwtEventPattern::MouseSelect1, Qt::LeftButton);
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zoomer_->setMousePattern(QwtEventPattern::MouseSelect2, Qt::LeftButton,
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Qt::ControlModifier);
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panner_ = new QwtPlotPanner(canvas());
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panner_->setMouseButton(Qt::RightButton);
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magnifier_ = new QwtPlotMagnifier(canvas());
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magnifier_->setMouseButton(Qt::NoButton);
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}
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Pointplot::~Pointplot()
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{
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delete[] realPoints_;
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delete[] imagPoints_;
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}
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void Pointplot::setData(double* iData, double* qData, int n)
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{
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if(numPoints_ != n)
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{
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numPoints_ = n;
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delete[] realPoints_;
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delete[] imagPoints_;
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realPoints_ = new double[numPoints_];
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imagPoints_ = new double[numPoints_];
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}
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copy(iData, iData+n, realPoints_);
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copy(qData, qData+n, imagPoints_);
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//Need to setRawSamples again for autoscaling to work
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curve_->setRawSamples(realPoints_, imagPoints_, numPoints_);
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zoomer_->setZoomBase(curve_->boundingRect());
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}
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