subsurface/qt-ui/globe.cpp

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#include "globe.h"
#ifndef NO_MARBLE
#include "mainwindow.h"
#include "helpers.h"
#include "divelistview.h"
#include "maintab.h"
#include "display.h"
#include <QTimer>
#include <QContextMenuEvent>
#include <QMouseEvent>
#include <marble/AbstractFloatItem.h>
#include <marble/GeoDataPlacemark.h>
#include <marble/GeoDataDocument.h>
#include <marble/MarbleModel.h>
#include <marble/MarbleDirs.h>
#include <marble/MapThemeManager.h>
#include <marble/GeoDataStyle.h>
#include <marble/GeoDataIconStyle.h>
#include <marble/GeoDataTreeModel.h>
#ifdef MARBLE_SUBSURFACE_BRANCH
#include <marble/MarbleDebug.h>
#endif
GlobeGPS *GlobeGPS::instance()
{
static GlobeGPS *self = new GlobeGPS();
return self;
}
GlobeGPS::GlobeGPS(QWidget *parent) : MarbleWidget(parent),
loadedDives(0),
messageWidget(new KMessageWidget(this)),
fixZoomTimer(new QTimer(this)),
needResetZoom(false),
editingDiveLocation(false),
doubleClick(false)
{
#ifdef MARBLE_SUBSURFACE_BRANCH
// we need to make sure this gets called after the command line arguments have
// been processed but before we initialize the rest of Marble
Marble::MarbleDebug::setEnabled(verbose);
#endif
currentZoomLevel = -1;
// check if Google Sat Maps are installed
// if not, check if they are in a known location
MapThemeManager mtm;
QStringList list = mtm.mapThemeIds();
QString subsurfaceDataPath;
QDir marble;
if (!list.contains("earth/googlesat/googlesat.dgml")) {
subsurfaceDataPath = getSubsurfaceDataPath("marbledata");
if (subsurfaceDataPath.size()) {
MarbleDirs::setMarbleDataPath(subsurfaceDataPath);
} else {
subsurfaceDataPath = getSubsurfaceDataPath("data");
if (subsurfaceDataPath.size())
MarbleDirs::setMarbleDataPath(subsurfaceDataPath);
}
}
messageWidget->setCloseButtonVisible(false);
messageWidget->setHidden(true);
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setMapThemeId("earth/googlesat/googlesat.dgml");
//setMapThemeId("earth/openstreetmap/openstreetmap.dgml");
setProjection(Marble::Spherical);
setAnimationsEnabled(true);
Q_FOREACH (AbstractFloatItem *i, floatItems()) {
i->setVisible(false);
}
setShowClouds(false);
setShowBorders(false);
setShowPlaces(true);
setShowCrosshairs(false);
setShowGrid(false);
setShowOverviewMap(false);
setShowScaleBar(true);
setShowCompass(false);
connect(this, SIGNAL(mouseClickGeoPosition(qreal, qreal, GeoDataCoordinates::Unit)),
this, SLOT(mouseClicked(qreal, qreal, GeoDataCoordinates::Unit)));
setMinimumHeight(0);
setMinimumWidth(0);
connect(fixZoomTimer, SIGNAL(timeout()), this, SLOT(fixZoom()));
fixZoomTimer->setSingleShot(true);
installEventFilter(this);
}
bool GlobeGPS::eventFilter(QObject *obj, QEvent *ev)
{
// sometimes Marble seems not to notice double clicks and consequently not call
// the right callback - so let's remember here if the last 'click' is a 'double' or not
enum QEvent::Type type = ev->type();
if (type == QEvent::MouseButtonDblClick)
doubleClick = true;
else if (type == QEvent::MouseButtonPress)
doubleClick = false;
// This disables Zooming when a double click occours on the scene.
if (type == QEvent::MouseButtonDblClick && !editingDiveLocation)
return true;
// This disables the Marble's Context Menu
// we need to move this to our 'contextMenuEvent'
// if we plan to do a different one in the future.
if (type == QEvent::ContextMenu) {
contextMenuEvent(static_cast<QContextMenuEvent *>(ev));
return true;
}
if (type == QEvent::MouseButtonPress) {
QMouseEvent *e = static_cast<QMouseEvent *>(ev);
if (e->button() == Qt::RightButton)
return true;
}
return QObject::eventFilter(obj, ev);
}
void GlobeGPS::contextMenuEvent(QContextMenuEvent *ev)
{
QMenu m;
QAction *a = m.addAction(tr("Edit selected dive locations"), this, SLOT(prepareForGetDiveCoordinates()));
a->setData(QVariant::fromValue<void *>(&m));
a->setEnabled(current_dive);
m.exec(ev->globalPos());
}
void GlobeGPS::mouseClicked(qreal lon, qreal lat, GeoDataCoordinates::Unit unit)
{
if (doubleClick) {
// strangely sometimes we don't get the changeDiveGeoPosition callback
// and end up here instead
changeDiveGeoPosition(lon, lat, unit);
return;
}
// don't mess with the selection while the user is editing a dive
if (MainWindow::instance()->information()->isEditing() || messageWidget->isVisible())
return;
GeoDataCoordinates here(lon, lat, unit);
long lon_udeg = rint(1000000 * here.longitude(GeoDataCoordinates::Degree));
long lat_udeg = rint(1000000 * here.latitude(GeoDataCoordinates::Degree));
// distance() is in km above the map.
// We're going to use that to decide how
// approximate the dives have to be.
//
// Totally arbitrarily I say that 1km
// distance means that we can resolve
// to about 100m. Which in turn is about
// 1000 udeg.
//
// Trigonometry is hard, but sin x == x
// for small x, so let's just do this as
// a linear thing.
long resolve = rint(distance() * 1000);
int idx;
struct dive *dive;
bool clear = !(QApplication::keyboardModifiers() & Qt::ControlModifier);
QList<int> selectedDiveIds;
for_each_dive (idx, dive) {
long lat_diff, lon_diff;
struct dive_site *ds = get_dive_site_for_dive(dive);
if (!dive_site_has_gps_location(ds))
continue;
lat_diff = labs(ds->latitude.udeg - lat_udeg);
lon_diff = labs(ds->longitude.udeg - lon_udeg);
if (lat_diff > 180000000)
lat_diff = 360000000 - lat_diff;
if (lon_diff > 180000000)
lon_diff = 180000000 - lon_diff;
if (lat_diff > resolve || lon_diff > resolve)
continue;
selectedDiveIds.push_back(idx);
}
if (selectedDiveIds.empty())
return;
if (clear)
MainWindow::instance()->dive_list()->unselectDives();
MainWindow::instance()->dive_list()->selectDives(selectedDiveIds);
}
void GlobeGPS::repopulateLabels()
{
static GeoDataStyle otherSite, currentSite;
static GeoDataIconStyle darkFlag(QImage(":flagDark")), lightFlag(QImage(":flagLight"));
struct dive_site *ds;
int idx;
QMap<QString, GeoDataPlacemark *> locationMap;
if (loadedDives) {
model()->treeModel()->removeDocument(loadedDives);
delete loadedDives;
}
loadedDives = new GeoDataDocument;
otherSite.setIconStyle(darkFlag);
currentSite.setIconStyle(lightFlag);
if (displayed_dive_site.uuid && dive_site_has_gps_location(&displayed_dive_site)) {
GeoDataPlacemark *place = new GeoDataPlacemark(displayed_dive_site.name);
place->setStyle(&currentSite);
place->setCoordinate(displayed_dive_site.longitude.udeg / 1000000.0,
displayed_dive_site.latitude.udeg / 1000000.0, 0, GeoDataCoordinates::Degree);
locationMap[QString(displayed_dive_site.name)] = place;
loadedDives->append(place);
}
for_each_dive_site(idx, ds) {
if (ds->uuid == displayed_dive_site.uuid)
continue;
if (dive_site_has_gps_location(ds)) {
GeoDataPlacemark *place = new GeoDataPlacemark(ds->name);
place->setStyle(&otherSite);
place->setCoordinate(ds->longitude.udeg / 1000000.0, ds->latitude.udeg / 1000000.0, 0, GeoDataCoordinates::Degree);
// don't add dive locations twice, unless they are at least 50m apart
if (locationMap[QString(ds->name)]) {
GeoDataCoordinates existingLocation = locationMap[QString(ds->name)]->coordinate();
GeoDataLineString segment = GeoDataLineString();
segment.append(existingLocation);
GeoDataCoordinates newLocation = place->coordinate();
segment.append(newLocation);
double dist = segment.length(6371);
// the dist is scaled to the radius given - so with 6371km as radius
// 50m turns into 0.05 as threashold
if (dist < 0.05)
continue;
}
locationMap[QString(ds->name)] = place;
loadedDives->append(place);
}
}
model()->treeModel()->addDocument(loadedDives);
struct dive_site *center = displayed_dive_site.uuid != 0 ?
&displayed_dive_site : current_dive ?
get_dive_site_by_uuid(current_dive->dive_site_uuid) : NULL;
if(dive_site_has_gps_location(&displayed_dive_site) && center)
centerOn(displayed_dive_site.longitude.udeg / 1000000.0, displayed_dive_site.latitude.udeg / 1000000.0, true);
}
void GlobeGPS::reload()
{
editingDiveLocation = false;
messageWidget->hide();
repopulateLabels();
}
void GlobeGPS::centerOnDiveSite(struct dive_site *ds)
{
if (!dive_site_has_gps_location(ds)) {
// this is not intuitive and at times causes trouble - let's comment it out for now
// zoomOutForNoGPS();
return;
}
qreal longitude = ds->longitude.udeg / 1000000.0;
qreal latitude = ds->latitude.udeg / 1000000.0;
if(IS_FP_SAME(longitude, centerLongitude()) && IS_FP_SAME(latitude,centerLatitude())) {
return;
}
// if no zoom is set up, set the zoom as seen from 3km above
// if we come back from a dive without GPS data, reset to the last zoom value
// otherwise check to make sure we aren't still running an animation and then remember
// the current zoom level
if (currentZoomLevel == -1) {
currentZoomLevel = zoomFromDistance(3.0);
centerOn(longitude, latitude);
fixZoom(true);
return;
}
if (!fixZoomTimer->isActive()) {
if (needResetZoom) {
needResetZoom = false;
fixZoom();
} else if (zoom() >= 1200) {
currentZoomLevel = zoom();
}
}
// From the marble source code, the maximum time of
// 'spin and fit' is 2000 miliseconds so wait a bit them zoom again.
fixZoomTimer->stop();
if (zoom() < 1200 && IS_FP_SAME(centerLatitude(), latitude) && IS_FP_SAME(centerLongitude(), longitude)) {
// create a tiny movement
centerOn(longitude + 0.00001, latitude + 0.00001);
fixZoomTimer->start(300);
} else {
fixZoomTimer->start(2100);
}
centerOn(longitude, latitude, true);
}
void GlobeGPS::fixZoom(bool now)
{
setZoom(currentZoomLevel, now ? Marble::Instant : Marble::Linear);
}
void GlobeGPS::zoomOutForNoGPS()
{
// this is called if the dive has no GPS location.
// zoom out quite a bit to show the globe and remember that the next time
// we show a dive with GPS location we need to zoom in again
if (!needResetZoom) {
needResetZoom = true;
if (!fixZoomTimer->isActive() && zoom() >= 1500) {
currentZoomLevel = zoom();
}
}
if (fixZoomTimer->isActive())
fixZoomTimer->stop();
// 1000 is supposed to make sure you see the whole globe
setZoom(1000, Marble::Linear);
}
void GlobeGPS::endGetDiveCoordinates()
{
messageWidget->animatedHide();
editingDiveLocation = false;
}
void GlobeGPS::prepareForGetDiveCoordinates()
{
messageWidget->setMessageType(KMessageWidget::Warning);
messageWidget->setText(QObject::tr("Move the map and double-click to set the dive location"));
messageWidget->setWordWrap(true);
messageWidget->setCloseButtonVisible(false);
messageWidget->animatedShow();
editingDiveLocation = true;
// this is not intuitive and at times causes trouble - let's comment it out for now
// if (!dive_has_gps_location(current_dive))
// zoomOutForNoGPS();
}
void GlobeGPS::changeDiveGeoPosition(qreal lon, qreal lat, GeoDataCoordinates::Unit unit)
{
if (!editingDiveLocation)
return;
// convert to degrees if in radian.
if (unit == GeoDataCoordinates::Radian) {
lon = lon * 180 / M_PI;
lat = lat * 180 / M_PI;
}
centerOn(lon, lat, true);
// change the location of the displayed_dive and put the UI in edit mode
displayed_dive_site.latitude.udeg = lrint(lat * 1000000.0);
displayed_dive_site.longitude.udeg = lrint(lon * 1000000.0);
emit coordinatesChanged();
repopulateLabels();
}
void GlobeGPS::mousePressEvent(QMouseEvent *event)
{
if (event->type() != QEvent::MouseButtonDblClick)
return;
qreal lat, lon;
bool clickOnGlobe = geoCoordinates(event->pos().x(), event->pos().y(), lon, lat, GeoDataCoordinates::Degree);
// there could be two scenarios that got us here; let's check if we are editing a dive
if (MainWindow::instance()->information()->isEditing() && clickOnGlobe) {
//
// FIXME
// TODO
//
// this needs to do this on the dive site screen
// MainWindow::instance()->information()->updateCoordinatesText(lat, lon);
repopulateLabels();
} else if (clickOnGlobe) {
changeDiveGeoPosition(lon, lat, GeoDataCoordinates::Degree);
}
}
void GlobeGPS::resizeEvent(QResizeEvent *event)
{
int size = event->size().width();
MarbleWidget::resizeEvent(event);
if (size > 600)
messageWidget->setGeometry((size - 600) / 2, 5, 600, 0);
else
messageWidget->setGeometry(5, 5, size - 10, 0);
messageWidget->setMaximumHeight(500);
}
void GlobeGPS::centerOnIndex(const QModelIndex& idx)
{
struct dive_site *ds = get_dive_site_by_uuid(idx.model()->index(idx.row(), 0).data().toInt());
if (!ds || !dive_site_has_gps_location(ds))
centerOnDiveSite(&displayed_dive_site);
else
centerOnDiveSite(ds);
}
#else
GlobeGPS *GlobeGPS::instance()
{
static GlobeGPS *self = new GlobeGPS();
return self;
}
GlobeGPS::GlobeGPS(QWidget *parent)
{
setText("MARBLE DISABLED AT BUILD TIME");
}
void GlobeGPS::repopulateLabels()
{
}
void GlobeGPS::centerOnCurrentDive()
{
}
bool GlobeGPS::eventFilter(QObject *obj, QEvent *ev)
{
return QObject::eventFilter(obj, ev);
}
void GlobeGPS::prepareForGetDiveCoordinates()
{
}
void GlobeGPS::endGetDiveCoordinates()
{
}
void GlobeGPS::reload()
{
}
void GlobeGPS::centerOnIndex(const QModelIndex& idx)
{
}
#endif