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Create GpsListModel in order to be able to display GPS fixes

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This will allow us to visualize the GPS fixes that are currently stored in the
QML UI.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2016-01-07 00:08:00 -08:00
parent 0f31102020
commit a7f8a7574e
5 changed files with 162 additions and 6 deletions
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96
qt-models/gpslistmodel.cpp Normal file
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#include "gpslistmodel.h"
#include "helpers.h"
GpsTracker::GpsTracker()
{
m_latitude = 0;
m_longitude = 0;
m_when = 0;
m_name = QString();
}
GpsTracker::~GpsTracker()
{
}
uint64_t GpsTracker::when() const
{
return m_when;
}
int32_t GpsTracker::latitude() const
{
return m_latitude;
}
int32_t GpsTracker::longitude() const
{
return m_longitude;
}
QString GpsTracker::name() const
{
return m_name;
}
GpsListModel *GpsListModel::m_instance = NULL;
GpsListModel::GpsListModel(QObject *parent) : QAbstractListModel(parent)
{
m_instance = this;
}
void GpsListModel::addGpsFix(gpsTracker *g)
{
beginInsertColumns(QModelIndex(), rowCount(), rowCount());
m_gpsFixes.append(GpsTracker(g));
endInsertRows();
}
void GpsListModel::clear()
{
if (m_gpsFixes.count()) {
beginRemoveRows(QModelIndex(), 0, m_gpsFixes.count() - 1);
m_gpsFixes.clear();
endRemoveRows();
}
}
int GpsListModel::rowCount(const QModelIndex &parent) const
{
return m_gpsFixes.count();
}
QVariant GpsListModel::data(const QModelIndex &index, int role) const
{
if (index.row() < 0 || index.row() > m_gpsFixes.count())
return QVariant();
const GpsTracker &gt = m_gpsFixes[index.row()];
if (role == GpsDateRole)
return get_short_dive_date_string(gt.when());
else if (role == GpsNameRole)
return QString(gt.name());
else if (role == GpsLatitudeRole)
return QString::number(gt.latitude() / 1000000.0, 'f', 6);
else if (role == GpsLongitudeRole)
return QString::number(gt.longitude() / 1000000.0, 'f', 6);
return QVariant();
}
QHash<int, QByteArray> GpsListModel::roleNames() const
{
QHash<int, QByteArray> roles;
roles[GpsDateRole] = "when";
roles[GpsNameRole] = "name";
roles[GpsLatitudeRole] = "latitude";
roles[GpsLongitudeRole] = "longitude";
return roles;
}
GpsListModel *GpsListModel::instance()
{
return m_instance;
}