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/*
* Copyright (C) 2023 Arseniy Movshev <dodoradio@outlook.com>
* 2017 Florent Revest <revestflo@gmail.com>
* All rights reserved.
*
* You may use this file under the terms of BSD license as follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the author nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "hrGraph.h"
#include "stepsDataLoader.h"
#include <QPainter>
#include <QDate>
#include <QFile>
#include <QVector>
#include <QSettings>
#include <QStandardPaths>
HrGraph::HrGraph()
{
setFlag(ItemHasContents, true);
setRenderTarget(QQuickPaintedItem::FramebufferObject);
loadGraphData();
}
void HrGraph::paint(QPainter *painter)
{
if (!m_fileLoadStatus) {
return;
}
int j = m_filedata.count();
QPointF points[j];
float valueDelta = maxHrValue - minHrValue;
float timeDelta = maxTime - minTime;
float calculatedValue = 0;
float calculatedTimeSeconds = 0;
for(int i = 0; i < j; i++) {
calculatedTimeSeconds = (m_filedata.at(i).time - minTime)/timeDelta;
calculatedValue = 1 - (m_filedata.at(i).value - minHrValue)/valueDelta;
points[i] = QPointF(1 + calculatedTimeSeconds*(height()-2), 1 + calculatedValue*(width()-2)); //these +2 -1 are here to make sure that the graph fits within the drawn area, as it will be clipped by qt if it doesn't.
}
painter->drawPolyline(points,j);
}
void HrGraph::loadGraphData(QDate date) {
m_fileLoadStatus = false;
QFile file(fileNameForDate(date, "heartrateSensor"));
if (!file.open(QIODevice::ReadWrite | QIODevice::Text)) {
qDebug() << "failed to open file";
return;
}
m_fileLoadStatus = true;
QTextStream inStream(&file);
QString line;
int i = 0;
int currTime;
int currValue;
m_filedata.clear();
while(!inStream.atEnd())
{
line = inStream.readLine();
currTime = line.split(":")[0].toInt();
currValue = line.split(":")[1].toInt();
HrDatapoint datapoint;
datapoint.time = currTime;
datapoint.value = currValue;
m_filedata.append(datapoint);
if(i == 0) {
minTime = currTime;
maxHrValue = currValue;
minHrValue = currValue;
}
if(currValue > maxHrValue) { maxHrValue = currValue; }
if(currValue < minHrValue) { minHrValue = currValue; }
i++;
}
maxTime = currTime;
qDebug() << "heartrate graph file loading done";
file.close();
}
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