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101 lines
3.3 KiB
C++
101 lines
3.3 KiB
C++
/*
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* $Id: RawFile.cpp,v 1.2 2006/08/11 19:58:07 srhea Exp $
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*
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* Copyright (c) 2006 Sean C. Rhea (srhea@srhea.net)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 51
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* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "RawFile.h"
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#include <QMessageBox>
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extern "C" {
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#include "../pt.h"
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}
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struct RawFileReadState
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{
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QList<RawFilePoint*> &points;
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QStringList &errors;
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double last_secs, last_miles;
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unsigned last_interval;
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time_t start_since_epoch;
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unsigned rec_int;
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RawFileReadState(QList<RawFilePoint*> &points, QStringList &errors) :
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points(points), errors(errors), last_secs(0.0), last_miles(0.0),
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last_interval(0), start_since_epoch(0), rec_int(0) {}
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};
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static void
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config_cb(unsigned /*interval*/, unsigned rec_int,
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unsigned /*wheel_sz_mm*/, void *context)
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{
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RawFileReadState *state = (RawFileReadState*) context;
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// Assume once set, rec_int should never change.
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assert((state->rec_int == 0) || (state->rec_int == rec_int));
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state->rec_int = rec_int;
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}
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static void
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time_cb(struct tm *, time_t since_epoch, void *context)
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{
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RawFileReadState *state = (RawFileReadState*) context;
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if (state->start_since_epoch == 0)
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state->start_since_epoch = since_epoch;
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double secs = since_epoch - state->start_since_epoch;
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RawFilePoint *point = new RawFilePoint(secs, -1.0, -1.0, -1.0,
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state->last_miles, 0, 0,
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state->last_interval);
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state->points.append(point);
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state->last_secs = secs;
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}
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static void
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data_cb(double secs, double nm, double mph, double watts, double miles,
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unsigned cad, unsigned hr, unsigned interval, void *context)
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{
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RawFileReadState *state = (RawFileReadState*) context;
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RawFilePoint *point = new RawFilePoint(secs, nm, mph, watts, miles,
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cad, hr, interval);
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state->points.append(point);
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state->last_secs = secs;
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state->last_miles = miles;
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state->last_interval = interval;
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}
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static void
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error_cb(const char *msg, void *context)
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{
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RawFileReadState *state = (RawFileReadState*) context;
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state->errors.append(QString(msg));
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}
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RawFile *RawFile::readFile(const QFile &file, QStringList &errors)
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{
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RawFile *result = new RawFile(file.fileName());
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if (!result->file.open(QIODevice::ReadOnly)) {
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delete result;
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return NULL;
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}
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FILE *f = fdopen(result->file.handle(), "r");
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assert(f);
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RawFileReadState state(result->points, errors);
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pt_read_raw(f, 0 /* not compat */, &state, config_cb,
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time_cb, data_cb, error_cb);
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result->rec_int = state.rec_int;
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return result;
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}
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