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/*
* scribiu -- read notebooks and voice memos from Livescribe pens
* Copyright (C) 2021 Javier S. Pedro <javier@javispedro.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <QtCore/QDebug>
#include <QtCore/QTextStream>
#include <QtCore/QXmlStreamWriter>
#include "stfexporter.h"
#define XMLNS_INK "http://www.w3.org/2003/InkML"
class StfToTXYP : public StfReader::StrokeHandler {
QTextStream _out;
QPoint _lastP;
int _lastForce;
qint64 _startTime;
bool _relativeTime;
public:
StfToTXYP(QIODevice *out, bool relativeTime)
: _out(out), _lastP(), _lastForce(0), _startTime(0), _relativeTime(relativeTime) {
_out << "T\tX\tY\tP\n";
}
bool startStroke(const QPoint& p, int force, qint64 time) {
if (_relativeTime && _startTime == 0) {
_startTime = time;
}
_out << (time - _startTime) << '\t' << p.x() << '\t' << p.y() << '\t' << force << '\n';
_lastP = p;
_lastForce = force;
return true;
}
bool strokePoint(const QPoint& p, int force, qint64 time) {
_out << (time - _startTime) << '\t' << p.x() << '\t' << p.y() << '\t' << force << '\n';
_lastP = p;
_lastForce = force;
return true;
}
bool endStroke(qint64 time) {
// Ensure there is a entry with force=0, in case the pen didn't provide it
if (_lastForce != 0) {
_out << (time - _startTime) << '\t' << _lastP.x() << '\t' << _lastP.y() << '\t' << 0 << '\n';
_lastForce = 0;
}
return true;
}
};
class StfToInkML : public StfReader::StrokeHandler {
QXmlStreamWriter *_out;
QPoint _lastP;
qint64 _startTime;
public:
StfToInkML(QXmlStreamWriter *out)
: _out(out), _lastP(), _startTime(0) {
}
bool startStroke(const QPoint& p, int force, qint64 time) {
Q_UNUSED(force);
if (_startTime == 0) {
_startTime = time;
}
_out->writeStartElement(XMLNS_INK, "trace");
_out->writeAttribute("timeOffset", QString::number(time - _startTime));
_out->writeCharacters(QString("%1 %2").arg(p.x()).arg(p.y()));
_lastP = p;
return true;
}
bool strokePoint(const QPoint& p, int force, qint64 time) {
Q_UNUSED(force);
Q_UNUSED(time);
QPoint delta = p - _lastP;
_out->writeCharacters(QString(", %1 %2").arg(delta.x()).arg(delta.y()));
_lastP = p;
return true;
}
bool endStroke(qint64 time) {
Q_UNUSED(time);
_out->writeEndElement();
return true;
}
};
StfExporter::StfExporter(AfdNotebook *nb)
: _nb(nb)
{
}
void StfExporter::exportToTXYP(QIODevice *out, int pageNum, bool relativeTime)
{
QStringList pens = _nb->penSerials();
if (pens.isEmpty()) return;
StfToTXYP h(out, relativeTime);
exportPage(&h, pageNum);
}
void StfExporter::exportToInkML(QIODevice *out, int pageNum)
{
QStringList pens = _nb->penSerials();
if (pens.isEmpty()) return;
QXmlStreamWriter writer(out);
writer.setAutoFormatting(true);
writer.writeStartDocument();
writer.writeDefaultNamespace(XMLNS_INK);
writer.writeStartElement(XMLNS_INK, "ink");
#if 0 /* No need to write out inkSource element, since default trace format is OK for now */
writer.writeStartElement(XMLNS_INK, "inkSource");
writer.writeAttribute("manufacturer", "Livescribe");
writer.writeAttribute("description", "Dumped by Scribiu");
writer.writeStartElement(XMLNS_INK, "traceFormat");
writer.writeEmptyElement(XMLNS_INK, "channel");
writer.writeAttribute("name", "X");
writer.writeAttribute("type", "integer");
writer.writeEmptyElement(XMLNS_INK, "channel");
writer.writeAttribute("name", "Y");
writer.writeAttribute("type", "integer");
writer.writeEndElement();
writer.writeEmptyElement(XMLNS_INK, "sampleRate");
writer.writeAttribute("uniform", "true");
writer.writeAttribute("value", "75");
writer.writeEndElement();
#endif
StfToInkML h(&writer);
exportPage(&h, pageNum);
writer.writeEndElement();
writer.writeEndDocument();
}
bool StfExporter::exportPage(StfReader::StrokeHandler *handler, int pageNum)
{
QStringList pens = _nb->penSerials();
if (pens.isEmpty()) return true; // No pen wrote on this page
StfReader r;
r.setStrokeHandler(handler);
foreach (const QString &pen, pens) {
QStringList strokeFiles = _nb->strokeFiles(pen, pageNum);
foreach (const QString &strokeFile, strokeFiles) {
QFile in(strokeFile);
if (!in.open(QIODevice::ReadOnly)) {
qWarning() << "Could not open stroke file:" << strokeFile;
continue;
}
if (!r.parse(&in)) {
qWarning() << "Could not parse stroke file:" << strokeFile;
continue;
}
}
}
return true;
}
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