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-rw-r--r--mobile-widgets/qmlmapwidgethelper.cpp264
1 files changed, 0 insertions, 264 deletions
diff --git a/mobile-widgets/qmlmapwidgethelper.cpp b/mobile-widgets/qmlmapwidgethelper.cpp
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index ba197f63f..000000000
--- a/mobile-widgets/qmlmapwidgethelper.cpp
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-// SPDX-License-Identifier: GPL-2.0
-#include <QApplication>
-#include <QClipboard>
-#include <QGeoCoordinate>
-#include <QDebug>
-#include <QVector>
-
-#include "qmlmapwidgethelper.h"
-#include "core/dive.h"
-#include "core/divesite.h"
-#include "core/helpers.h"
-#include "qt-models/maplocationmodel.h"
-
-#define MIN_DISTANCE_BETWEEN_DIVE_SITES_M 50.0
-#define SMALL_CIRCLE_RADIUS_PX 26.0
-
-MapWidgetHelper::MapWidgetHelper(QObject *parent) : QObject(parent)
-{
- m_mapLocationModel = new MapLocationModel(this);
- connect(m_mapLocationModel, SIGNAL(selectedLocationChanged(MapLocation *)),
- this, SLOT(selectedLocationChanged(MapLocation *)));
-}
-
-void MapWidgetHelper::centerOnDiveSite(struct dive_site *ds)
-{
- int idx;
- struct dive *dive;
- QVector<struct dive_site *> selDS;
- QVector<QGeoCoordinate> selGC;
- QGeoCoordinate dsCoord;
-
- for_each_dive (idx, dive) {
- struct dive_site *dss = get_dive_site_for_dive(dive);
- if (!dive_site_has_gps_location(dss) || !dive->selected)
- continue;
- // only store dive sites with GPS
- selDS.append(dss);
- selGC.append(QGeoCoordinate(dss->latitude.udeg * 0.000001,
- dss->longitude.udeg * 0.000001));
- }
- if (!dive_site_has_gps_location(ds) && !selDS.size()) {
- // only a single dive site with no GPS selected
- m_mapLocationModel->setSelectedUuid(ds ? ds->uuid : 0, false);
- QMetaObject::invokeMethod(m_map, "deselectMapLocation");
-
- } else if (selDS.size() == 1) {
- // a single dive site with GPS selected
- ds = selDS.at(0);
- m_mapLocationModel->setSelectedUuid(ds->uuid, false);
- dsCoord.setLatitude(ds->latitude.udeg * 0.000001);
- dsCoord.setLongitude(ds->longitude.udeg * 0.000001);
- QMetaObject::invokeMethod(m_map, "centerOnCoordinate", Q_ARG(QVariant, QVariant::fromValue(dsCoord)));
- } else if (selDS.size() > 1) {
- /* more than one dive sites with GPS selected.
- * find the most top-left and bottom-right dive sites on the map coordinate system. */
- ds = selDS.at(0);
- m_mapLocationModel->setSelectedUuid(ds->uuid, false);
- qreal minLat = 0.0, minLon = 0.0, maxLat = 0.0, maxLon = 0.0;
- bool start = true;
- foreach(QGeoCoordinate gc, selGC) {
- qreal lat = gc.latitude();
- qreal lon = gc.longitude();
- if (start) {
- minLat = maxLat = lat;
- minLon = maxLon = lon;
- start = false;
- continue;
- }
- if (lat < minLat)
- minLat = lat;
- else if (lat > maxLat)
- maxLat = lat;
- if (lon < minLon)
- minLon = lon;
- else if (lon > maxLon)
- maxLon = lon;
- }
- // pass rectangle coordinates to QML
- QGeoCoordinate coordTopLeft(minLat, minLon);
- QGeoCoordinate coordBottomRight(maxLat, maxLon);
- QGeoCoordinate coordCenter(minLat + (maxLat - minLat) * 0.5, minLon + (maxLon - minLon) * 0.5);
- QMetaObject::invokeMethod(m_map, "centerOnRectangle",
- Q_ARG(QVariant, QVariant::fromValue(coordTopLeft)),
- Q_ARG(QVariant, QVariant::fromValue(coordBottomRight)),
- Q_ARG(QVariant, QVariant::fromValue(coordCenter)));
- }
-}
-
-void MapWidgetHelper::reloadMapLocations()
-{
- struct dive_site *ds;
- int idx;
- QMap<QString, MapLocation *> locationNameMap;
- m_mapLocationModel->clear();
- MapLocation *location;
- QVector<MapLocation *> locationList;
- qreal latitude, longitude;
-
- if (displayed_dive_site.uuid && dive_site_has_gps_location(&displayed_dive_site)) {
- latitude = displayed_dive_site.latitude.udeg * 0.000001;
- longitude = displayed_dive_site.longitude.udeg * 0.000001;
- location = new MapLocation(displayed_dive_site.uuid, QGeoCoordinate(latitude, longitude),
- QString(displayed_dive_site.name));
- locationList.append(location);
- locationNameMap[QString(displayed_dive_site.name)] = location;
- }
- for_each_dive_site(idx, ds) {
- if (!dive_site_has_gps_location(ds) || ds->uuid == displayed_dive_site.uuid)
- continue;
- latitude = ds->latitude.udeg * 0.000001;
- longitude = ds->longitude.udeg * 0.000001;
- QGeoCoordinate dsCoord(latitude, longitude);
- QString name(ds->name);
- // don't add dive locations with the same name, unless they are
- // at least MIN_DISTANCE_BETWEEN_DIVE_SITES_M apart
- if (locationNameMap.contains(name)) {
- MapLocation *existingLocation = locationNameMap[name];
- QGeoCoordinate coord = qvariant_cast<QGeoCoordinate>(existingLocation->getRole(MapLocation::Roles::RoleCoordinate));
- if (dsCoord.distanceTo(coord) < MIN_DISTANCE_BETWEEN_DIVE_SITES_M)
- continue;
- }
- location = new MapLocation(ds->uuid, dsCoord, name);
- locationList.append(location);
- locationNameMap[name] = location;
- }
- m_mapLocationModel->addList(locationList);
-}
-
-void MapWidgetHelper::selectedLocationChanged(MapLocation *location)
-{
- int idx;
- struct dive *dive;
- m_selectedDiveIds.clear();
- QGeoCoordinate locationCoord = location->coordinate();
- for_each_dive (idx, dive) {
- struct dive_site *ds = get_dive_site_for_dive(dive);
- if (!dive_site_has_gps_location(ds))
- continue;
- const qreal latitude = ds->latitude.udeg * 0.000001;
- const qreal longitude = ds->longitude.udeg * 0.000001;
- QGeoCoordinate dsCoord(latitude, longitude);
- if (locationCoord.distanceTo(dsCoord) < m_smallCircleRadius)
- m_selectedDiveIds.append(idx);
- }
- emit selectedDivesChanged(m_selectedDiveIds);
-}
-
-void MapWidgetHelper::selectVisibleLocations()
-{
- int idx;
- struct dive *dive;
- bool selectedFirst = false;
- m_selectedDiveIds.clear();
- for_each_dive (idx, dive) {
- struct dive_site *ds = get_dive_site_for_dive(dive);
- if (!dive_site_has_gps_location(ds))
- continue;
- const qreal latitude = ds->latitude.udeg * 0.000001;
- const qreal longitude = ds->longitude.udeg * 0.000001;
- QGeoCoordinate dsCoord(latitude, longitude);
- QPointF point;
- QMetaObject::invokeMethod(m_map, "fromCoordinate", Q_RETURN_ARG(QPointF, point),
- Q_ARG(QGeoCoordinate, dsCoord));
- if (!qIsNaN(point.x())) {
- if (!selectedFirst) {
- m_mapLocationModel->setSelectedUuid(ds->uuid, false);
- selectedFirst = true;
- }
- m_selectedDiveIds.append(idx);
- }
- }
- emit selectedDivesChanged(m_selectedDiveIds);
-}
-
-/*
- * Based on a 2D Map widget circle with center "coord" and radius SMALL_CIRCLE_RADIUS_PX,
- * obtain a "small circle" with radius m_smallCircleRadius in meters:
- * https://en.wikipedia.org/wiki/Circle_of_a_sphere
- *
- * The idea behind this circle is to be able to select multiple nearby dives, when clicking on
- * the map. This code can be in QML, but it is in C++ instead for performance reasons.
- *
- * This can be made faster with an exponential regression [a * exp(b * x)], with a pretty
- * decent R-squared, but it becomes bound to map provider zoom level mappings and the
- * SMALL_CIRCLE_RADIUS_PX value, which makes the code hard to maintain.
- */
-void MapWidgetHelper::calculateSmallCircleRadius(QGeoCoordinate coord)
-{
- QPointF point;
- QMetaObject::invokeMethod(m_map, "fromCoordinate", Q_RETURN_ARG(QPointF, point),
- Q_ARG(QGeoCoordinate, coord));
- QPointF point2(point.x() + SMALL_CIRCLE_RADIUS_PX, point.y());
- QGeoCoordinate coord2;
- QMetaObject::invokeMethod(m_map, "toCoordinate", Q_RETURN_ARG(QGeoCoordinate, coord2),
- Q_ARG(QPointF, point2));
- m_smallCircleRadius = coord2.distanceTo(coord);
-}
-
-void MapWidgetHelper::copyToClipboardCoordinates(QGeoCoordinate coord, bool formatTraditional)
-{
- bool savep = prefs.coordinates_traditional;
- prefs.coordinates_traditional = formatTraditional;
-
- const int lat = lrint(1000000.0 * coord.latitude());
- const int lon = lrint(1000000.0 * coord.longitude());
- const char *coordinates = printGPSCoords(lat, lon);
- QApplication::clipboard()->setText(QString(coordinates), QClipboard::Clipboard);
-
- free((void *)coordinates);
- prefs.coordinates_traditional = savep;
-}
-
-void MapWidgetHelper::updateCurrentDiveSiteCoordinates(quint32 uuid, QGeoCoordinate coord)
-{
- MapLocation *loc = m_mapLocationModel->getMapLocationForUuid(uuid);
- if (loc)
- loc->setCoordinate(coord);
- displayed_dive_site.latitude.udeg = lrint(coord.latitude() * 1000000.0);
- displayed_dive_site.longitude.udeg = lrint(coord.longitude() * 1000000.0);
- emit coordinatesChanged();
-}
-
-bool MapWidgetHelper::editMode()
-{
- return m_editMode;
-}
-
-void MapWidgetHelper::setEditMode(bool editMode)
-{
- m_editMode = editMode;
- MapLocation *exists = m_mapLocationModel->getMapLocationForUuid(displayed_dive_site.uuid);
- // if divesite uuid doesn't exist in the model, add a new MapLocation.
- if (editMode && !exists) {
- QGeoCoordinate coord(0.0, 0.0);
- m_mapLocationModel->add(new MapLocation(displayed_dive_site.uuid, coord,
- QString(displayed_dive_site.name)));
- QMetaObject::invokeMethod(m_map, "centerOnCoordinate",
- Q_ARG(QVariant, QVariant::fromValue(coord)));
- }
- emit editModeChanged();
-}
-
-QString MapWidgetHelper::pluginObject()
-{
- QString str;
- str += "import QtQuick 2.0;";
- str += "import QtLocation 5.3;";
- str += "Plugin {";
- str += " id: mapPlugin;";
- str += " name: 'googlemaps';";
- str += " PluginParameter { name: 'googlemaps.maps.language'; value: '%lang%' }";
- str += " PluginParameter { name: 'googlemaps.cachefolder'; value: '%cacheFolder%' }";
- str += " Component.onCompleted: {";
- str += " if (availableServiceProviders.indexOf(name) === -1) {";
- str += " console.warn('MapWidget.qml: cannot find a plugin named: ' + name);";
- str += " }";
- str += " }";
- str += "}";
- QString lang = uiLanguage(NULL).replace('_', '-');
- str.replace("%lang%", lang);
- QString cacheFolder = QString(system_default_directory()).append("/googlemaps");
- str.replace("%cacheFolder%", cacheFolder.replace("\\", "/"));
- return str;
-}