subsurface/qt-models/divelocationmodel.cpp
Berthold Stoeger 920eb7576f Dive site: pass pointer-to-dive_site via QVariant
There was this ugly pattern of passing pointers-to-dive_site via
a QVariant of void * type. This is of course inherently unsafe.

Pass these pointers using their proper types instead. This makes
it necessary to register them in Qt's meta-type system. Doing so,
fixes a bug: QML couldn't call into updateDiveSiteCoordinates()
because it didn't know the type and thus the coordinates of
the moved flag were not reflected in the divesite-dialog.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-29 00:09:31 +00:00

147 lines
3.8 KiB
C++

// SPDX-License-Identifier: GPL-2.0
#include "core/units.h"
#include "qt-models/divelocationmodel.h"
#include "core/qthelper.h"
#include <QDebug>
#include <QLineEdit>
#include <QIcon>
#include <core/gettextfromc.h>
static bool dive_site_less_than(dive_site *a, dive_site *b)
{
return QString(a->name) < QString(b->name);
}
LocationInformationModel *LocationInformationModel::instance()
{
static LocationInformationModel *self = new LocationInformationModel();
return self;
}
LocationInformationModel::LocationInformationModel(QObject *obj) : QAbstractTableModel(obj)
{
}
int LocationInformationModel::columnCount(const QModelIndex&) const
{
return COLUMNS;
}
int LocationInformationModel::rowCount(const QModelIndex&) const
{
return dive_site_table.nr;
}
QVariant LocationInformationModel::getDiveSiteData(const struct dive_site *ds, int column, int role)
{
if (!ds)
return QVariant();
switch(role) {
case Qt::EditRole:
case Qt::DisplayRole :
switch(column) {
case DIVESITE: return QVariant::fromValue<dive_site *>((dive_site *)ds); // Not nice: casting away const
case NAME: return ds->name;
case LATITUDE: return ds->location.lat.udeg;
case LONGITUDE: return ds->location.lon.udeg;
case COORDS: return "TODO";
case DESCRIPTION: return ds->description;
case NOTES: return ds->name;
case TAXONOMY_1: return "TODO";
case TAXONOMY_2: return "TODO";
case TAXONOMY_3: return "TODO";
}
break;
case Qt::DecorationRole : {
if (dive_site_has_gps_location(ds))
return QIcon(":geotag-icon");
else
return QVariant();
}
case DIVESITE_ROLE:
return QVariant::fromValue<dive_site *>((dive_site *)ds); // Not nice: casting away const
}
return QVariant();
}
QVariant LocationInformationModel::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
return QVariant();
struct dive_site *ds = get_dive_site(index.row());
return getDiveSiteData(ds, index.column(), role);
}
void LocationInformationModel::update()
{
beginResetModel();
qSort(dive_site_table.dive_sites, dive_site_table.dive_sites + dive_site_table.nr, dive_site_less_than);
locationNames.clear();
for (int i = 0; i < dive_site_table.nr; i++)
locationNames << QString(dive_site_table.dive_sites[i]->name);
endResetModel();
}
QStringList LocationInformationModel::allSiteNames() const
{
return locationNames;
}
bool LocationInformationModel::removeRows(int row, int, const QModelIndex&)
{
if(row >= rowCount())
return false;
beginRemoveRows(QModelIndex(), row, row);
struct dive_site *ds = get_dive_site(row);
if (ds)
delete_dive_site(ds);
endRemoveRows();
return true;
}
GeoReferencingOptionsModel *GeoReferencingOptionsModel::instance()
{
static GeoReferencingOptionsModel *self = new GeoReferencingOptionsModel();
return self;
}
GeoReferencingOptionsModel::GeoReferencingOptionsModel(QObject *parent) : QStringListModel(parent)
{
QStringList list;
int i;
for (i = 0; i < TC_NR_CATEGORIES; i++)
list << gettextFromC::tr(taxonomy_category_names[i]);
setStringList(list);
}
bool GPSLocationInformationModel::filterAcceptsRow(int sourceRow, const QModelIndex &parent) const
{
struct dive_site *ds = sourceModel()->index(sourceRow, LocationInformationModel::DIVESITE, parent).data().value<dive_site *>();
if (ds == ignoreDs || ds == RECENTLY_ADDED_DIVESITE)
return false;
return ds && same_location(&ds->location, &location);
}
GPSLocationInformationModel::GPSLocationInformationModel(QObject *parent) : QSortFilterProxyModel(parent),
ignoreDs(nullptr),
location({{0},{0}})
{
setSourceModel(LocationInformationModel::instance());
}
void GPSLocationInformationModel::set(const struct dive_site *ignoreDsIn, const location_t &locationIn)
{
ignoreDs = ignoreDsIn;
location = locationIn;
invalidate();
}
void GPSLocationInformationModel::setCoordinates(const location_t &locationIn)
{
location = locationIn;
invalidate();
}