detailplot.cpp

/******************************************************************************
*
*   This file is part of Cardio Curves.
*   Copyright (C) 2009 Jan Gunnar Andreassen
*   Copyright (C) 2009 Lars Magne Engedal
*
*   Cardio Curves is free software: you can redistribute it and/or modify
*   it under the terms of the GNU Lesser General Public License as published
*   by the Free Software Foundation, either version 2.1 of the License, or
*   (at your option) any later version.
*
*   Cardio Cruves 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 Lesser General Public License for more details.
*
*   You should have received a copy of the GNU Lesser General Public License
*   along with Cardio Curves.  If not, see <http://www.gnu.org/licenses/>.
*
*   Developer contact:
*       (janislazzaroni at users.sourceforge.net)
*       (engedal at users.sourceforge.net )
******************************************************************************/

#include <QPainter>
#include <QPoint>

#include <qwt_plot_curve.h>
#include <qwt_plot_grid.h>
#include <qwt_plot_layout.h>
#include <qwt_plot_marker.h>
#include <qwt_text.h>

#include "detailplot.h"

DetailPlot::DetailPlot(int linesize, QPointF lineAxis, QWidget *parent):
        QwtPlot(parent)
{
    d_valid = false;
    samplesprCruve = linesize;
    setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
    d_lineAxisbounds = lineAxis;
}

void DetailPlot::setData(const double *x, const double *y,
    const QString &dateTimeLabel)
{
    if (!d_valid)
    {
        // initializing curve
        d_curve = new QwtPlotCurve("Channel ...");
        d_curve->setPen(QPen(Qt::black));
        d_curve->setStyle(QwtPlotCurve::Lines);
        d_curve->attach(this);

        // also grid settings
        setAxisScale(QwtPlot::xBottom, 0.0, 10.0, 0.2);
        setAxisScale(QwtPlot::yLeft,
            d_lineAxisbounds.x(),
            d_lineAxisbounds.y(),
            qAbs((d_lineAxisbounds.y() - d_lineAxisbounds.x())) / 8);

        setAxisMaxMinor(QwtPlot::xBottom, 5);
        setAxisMaxMinor(QwtPlot::yLeft, 5);

        //grid
        QwtPlotGrid *grid = new QwtPlotGrid;
        grid->enableXMin(true);
        grid->enableYMin(true);
        grid->setMajPen(QPen(Qt::red, 0, Qt::SolidLine));
        grid->setMinPen(QPen(Qt::red, 0, Qt::DotLine));
        grid->attach(this);

        d_valid = true;
        enableAxis(QwtPlot::yLeft, false);
        enableAxis(QwtPlot::xBottom, false);
        plotLayout()->setCanvasMargin(0);

        //marker
        d_marker = new QwtPlotMarker;
        d_marker->setValue(0, d_lineAxisbounds.x());
        d_marker->setLineStyle(QwtPlotMarker::HLine);
        d_marker->setLabelAlignment(Qt::AlignLeft | Qt::AlignTop);
        d_marker->attach(this);
    }
    QwtText text(dateTimeLabel);
    text.setFont(QFont("Helvetica", 14, QFont::Bold));
    d_marker->setLabel(text);
    d_curve->setRawData(x, y, samplesprCruve);
    replot();
    updateGeometry();
}

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