CardioCurves: datahandler.cpp Source File

00001 /******************************************************************************
00002 *
00003 *   This file is part of Cardio Curves.
00004 *   Copyright (C) 2009 Jan Gunnar Andreassen
00005 *   Copyright (C) 2009 Lars Magne Engedal
00006 *
00007 *   Cardio Curves is free software: you can redistribute it and/or modify
00008 *   it under the terms of the GNU Lesser General Public License as published
00009 *   by the Free Software Foundation, either version 2.1 of the License, or
00010 *   (at your option) any later version.
00011 *
00012 *   Cardio Cruves is distributed in the hope that it will be useful,
00013 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
00014 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015 *   GNU Lesser General Public License for more details.
00016 *
00017 *   You should have received a copy of the GNU Lesser General Public License
00018 *   along with Cardio Curves.  If not, see <http://www.gnu.org/licenses/>.
00019 *
00020 *   Developer contact:
00021 *       (janislazzaroni at users.sourceforge.net)
00022 *       (engedal at users.sourceforge.net )
00023 ******************************************************************************/
00024 
00025 #include "datahandler.h"
00026 
00027 DataHandler::DataHandler()
00028 {
00029     startStamp = QDateTime::currentDateTime();
00030     detailStamp = startStamp;
00031     samplingRate = standardSamplingRate;
00032     samplesprLine = samplingRate * secondsprLine;
00033     initArrays();
00034 }
00035 
00036 DataHandler::DataHandler(int samplesprSecond)
00037 {
00038     startStamp = QDateTime::currentDateTime();
00039     detailStamp = startStamp;
00040     samplingRate = samplesprSecond;
00041     samplesprLine = samplingRate * secondsprLine;
00042     initArrays();
00043 }
00044 
00045 DataHandler::DataHandler(const QDateTime &startingPoint, int samplesprSecond)
00046 {
00047     startStamp = startingPoint;
00048     detailStamp = startStamp;
00049     samplingRate = samplesprSecond;
00050     samplesprLine = samplingRate * secondsprLine;
00051     initArrays();
00052 }
00053 
00054 DataHandler::~DataHandler()
00055 {
00056     //nothing to cleanup atm, everything is static
00057 }
00058 
00059 void DataHandler::initArrays()
00060 {
00061     yVectors.resize(numberofLines);
00062     xVector.resize(samplesprLine);
00063 
00064     for(int i=0;i<numberofLines;i++)
00065     {
00066         yVectors[i].resize(samplesprLine);
00067     }
00068 
00069     for (int i = 0; i < samplesprLine; i++)
00070     {
00071         xVector[i] = i / (double)samplingRate;
00072     }
00073 }
00074 
00075 double *DataHandler::getLineSample(int line, int sample)
00076 {
00077     double *py = yVectors[line].data();
00078     py += sample;
00079 
00080     return py;
00081 }
00082 
00083 QPoint DataHandler::getLineSampleBounds() const
00084 {
00085     return QPoint(0, getSamplesPrLine());
00086 }
00087 
00088 QPoint DataHandler::getDetailLineSampleBounds() const
00089 {
00090     return QPoint(0, getSamplesPrDetailLine());
00091 }
00092 
00093 void DataHandler::setSampleprSecond(int sprsec)
00094 {
00095     samplingRate = sprsec;
00096     samplesprLine = samplingRate * secondsprLine;
00097     initArrays();
00098 }
00099 
00100 QString DataHandler::getStartStampText() const
00101 {
00102     return QString(startStamp.toString(QString("yyyy-MM-dd hh:mm:ss")));
00103 }
00104 
00105 QString DataHandler::getStartStampText(int line, int sample) const
00106 {
00107     int sec = line * secondsprLine;
00108     sec += (sample / samplingRate);
00109     return QString(
00110         startStamp.addSecs(sec).toString(QString("yyyy-MM-dd hh:mm:ss")));
00111 }