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Aded support for downloading hillshading DEMs

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This commit is contained in:
Martin Tůma 2024-02-27 21:36:16 +01:00
parent c33215565f
commit 69c4e6d2dc
7 changed files with 112 additions and 32 deletions
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100
src/GUI/gui.cpp
View File

@ -121,6 +121,7 @@ GUI::GUI()
updateGraphTabs();
updateStatusBarInfo();
updateMapDEMDownloadAction();
}
void GUI::createBrowser()
@ -453,11 +454,17 @@ void GUI::createActions()
&MapView::useStyles);
// DEM actions
_downloadDEMAction = new QAction(tr("Download DEM data"), this);
_downloadDEMAction->setMenuRole(QAction::NoRole);
_downloadDEMAction->setEnabled(false);
_downloadDEMAction->setShortcut(DOWNLOAD_DEM_SHORTCUT);
connect(_downloadDEMAction, &QAction::triggered, this, &GUI::downloadDEM);
_downloadDataDEMAction = new QAction(tr("Download data DEM"), this);
_downloadDataDEMAction->setMenuRole(QAction::NoRole);
_downloadDataDEMAction->setEnabled(false);
_downloadDataDEMAction->setShortcut(DOWNLOAD_DEM_SHORTCUT);
connect(_downloadDataDEMAction, &QAction::triggered, this,
&GUI::downloadDataDEM);
_downloadMapDEMAction = new QAction(tr("Download map DEM"), this);
_downloadMapDEMAction->setMenuRole(QAction::NoRole);
_downloadMapDEMAction->setEnabled(false);
connect(_downloadMapDEMAction, &QAction::triggered, this,
&GUI::downloadMapDEM);
_showDEMTilesAction = new QAction(tr("Show local DEM tiles"), this);
_showDEMTilesAction->setMenuRole(QAction::NoRole);
connect(_showDEMTilesAction, &QAction::triggered, this, &GUI::showDEMTiles);
@ -715,7 +722,9 @@ void GUI::createMenus()
QMenu *demMenu = menuBar()->addMenu(tr("DEM"));
demMenu->addAction(_showDEMTilesAction);
demMenu->addAction(_downloadDEMAction);
demMenu->addSeparator();
demMenu->addAction(_downloadDataDEMAction);
demMenu->addAction(_downloadMapDEMAction);
demMenu->addSeparator();
demMenu->addAction(_drawHillShadingAction);
@ -1075,7 +1084,7 @@ bool GUI::loadFile(const QString &fileName, bool tryUnknown, int &showError)
updateStatusBarInfo();
updateWindowTitle();
updateGraphTabs();
updateDEMDownloadAction();
updateDataDEMDownloadAction();
if (_files.isEmpty())
_fileActionGroup->setEnabled(false);
@ -1156,7 +1165,7 @@ void GUI::loadData(const Data &data)
}
}
updateDEMDownloadAction();
updateDataDEMDownloadAction();
}
void GUI::openPOIFile()
@ -1566,7 +1575,7 @@ void GUI::reloadFiles()
else
_browser->setCurrent(_files.last());
#endif // Q_OS_ANDROID
updateDEMDownloadAction();
updateDataDEMDownloadAction();
}
void GUI::closeFiles()
@ -1599,7 +1608,7 @@ void GUI::closeAll()
updateStatusBarInfo();
updateWindowTitle();
updateGraphTabs();
updateDEMDownloadAction();
updateDataDEMDownloadAction();
#ifdef Q_OS_ANDROID
_browser->setCurrentDir(QString());
@ -1670,7 +1679,7 @@ void GUI::showTracks(bool show)
updateStatusBarInfo();
updateGraphTabs();
updateDEMDownloadAction();
updateDataDEMDownloadAction();
}
void GUI::showRoutes(bool show)
@ -1682,19 +1691,19 @@ void GUI::showRoutes(bool show)
updateStatusBarInfo();
updateGraphTabs();
updateDEMDownloadAction();
updateDataDEMDownloadAction();
}
void GUI::showWaypoints(bool show)
{
_mapView->showWaypoints(show);
updateDEMDownloadAction();
updateDataDEMDownloadAction();
}
void GUI::showAreas(bool show)
{
_mapView->showAreas(show);
updateDEMDownloadAction();
updateDataDEMDownloadAction();
}
void GUI::showGraphGrids(bool show)
@ -1748,6 +1757,12 @@ void GUI::loadMap()
lastReady->trigger();
}
void GUI::reloadMap()
{
_mapView->setMap(_map);
updateMapDEMDownloadAction();
}
static MapAction *findMapAction(const QList<QAction*> &mapActions,
const Map *map)
{
@ -1951,15 +1966,33 @@ void GUI::clearMapCache()
_mapView->clearMapCache();
}
void GUI::downloadDEM()
void GUI::downloadDataDEM()
{
RectC br(_mapView->boundingRect());
_demRects.append(br);
if (!_dem->loadTiles(br) && _demRects.size() == 1)
demLoaded();
downloadDEM(_mapView->boundingRect());
}
void GUI::downloadMapDEM()
{
downloadDEM(_map->llBounds());
}
void GUI::downloadDEM(const RectC &rect)
{
int cnt = _dem->numTiles(rect);
if (cnt > DEM_DOWNLOAD_LIMIT)
QMessageBox::information(this, APP_NAME,
tr("DEM tiles download limit exceeded. If you really need data for "
"such a huge area, download the files manually."));
else if (cnt < DEM_DOWNLOAD_WARNING || QMessageBox::question(this, APP_NAME,
tr("Download %1 DEM tiles?").arg(cnt)) == QMessageBox::Yes) {
_demRects.append(rect);
if (!_dem->loadTiles(rect) && _demRects.size() == 1)
demLoaded();
}
}
void GUI::demLoaded()
{
for (int i = 0; i < _demRects.size(); i++) {
@ -1970,9 +2003,14 @@ void GUI::demLoaded()
}
}
DEM::clearCache();
_demRects.clear();
DEM::lock();
DEM::clearCache();
DEM::unlock();
reloadFiles();
reloadMap();
}
void GUI::showDEMTiles()
@ -2079,6 +2117,7 @@ void GUI::mapChanged(QAction *action)
{
_map = action->data().value<Map*>();
_mapView->setMap(_map);
updateMapDEMDownloadAction();
}
void GUI::nextMap()
@ -2199,12 +2238,18 @@ bool GUI::updateGraphTabs()
return (hidden != _graphTabWidget->isHidden());
}
void GUI::updateDEMDownloadAction()
void GUI::updateDataDEMDownloadAction()
{
_downloadDEMAction->setEnabled(!_dem->url().isEmpty()
_downloadDataDEMAction->setEnabled(!_dem->url().isEmpty()
&& !_dem->checkTiles(_mapView->boundingRect()));
}
void GUI::updateMapDEMDownloadAction()
{
_downloadMapDEMAction->setEnabled(!_dem->url().isEmpty()
&& _map->usesDEM() && !_dem->checkTiles(_map->llBounds()));
}
void GUI::setTimeType(TimeType type)
{
for (int i = 0; i <_tabs.count(); i++)
@ -2976,7 +3021,9 @@ void GUI::loadOptions()
Downloader::setTimeout(_options.connectionTimeout);
QPixmapCache::setCacheLimit(_options.pixmapCache * 1024);
DEM::lock();
DEM::setCacheSize(_options.demCache * 1024);
DEM::unlock();
_poi->setRadius(_options.poiRadius);
@ -3101,8 +3148,11 @@ void GUI::updateOptions(const Options &options)
if (options.pixmapCache != _options.pixmapCache)
QPixmapCache::setCacheLimit(options.pixmapCache * 1024);
if (options.demCache != _options.demCache)
if (options.demCache != _options.demCache) {
DEM::lock();
DEM::setCacheSize(options.demCache * 1024);
DEM::unlock();
}
if (options.connectionTimeout != _options.connectionTimeout)
Downloader::setTimeout(options.connectionTimeout);
@ -3121,7 +3171,7 @@ void GUI::updateOptions(const Options &options)
_options = options;
updateDEMDownloadAction();
updateDataDEMDownloadAction();
}
void GUI::loadInitialMaps(const QString &selected)

12
src/GUI/gui.h
View File

@ -84,7 +84,8 @@ private slots:
void prevMap();
void openOptions();
void clearMapCache();
void downloadDEM();
void downloadDataDEM();
void downloadMapDEM();
void showDEMTiles();
void mapChanged(QAction *action);
@ -164,7 +165,8 @@ private:
void updateStatusBarInfo();
void updateWindowTitle();
bool updateGraphTabs();
void updateDEMDownloadAction();
void updateDataDEMDownloadAction();
void updateMapDEMDownloadAction();
#ifndef Q_OS_ANDROID
void updateRecentFiles(const QString &fileName);
#endif // Q_OS_ANDROID
@ -184,12 +186,15 @@ private:
void readSettings(QString &activeMap, QStringList &disabledPOIs,
QStringList &recentFiles);
void reloadMap();
void loadInitialMaps(const QString &selected);
void loadInitialPOIs(const QStringList &disabled);
#ifndef Q_OS_ANDROID
void loadRecentFiles(const QStringList &files);
#endif // Q_OS_ANDROID
void downloadDEM(const RectC &rect);
void loadOptions();
void updateOptions(const Options &options);
@ -289,7 +294,8 @@ private:
QAction *_useStylesAction;
QAction *_showCoordinatesAction;
QAction *_openOptionsAction;
QAction *_downloadDEMAction;
QAction *_downloadDataDEMAction;
QAction *_downloadMapDEMAction;
QAction *_showDEMTilesAction;
QAction *_drawHillShadingAction;
QAction *_mapsEnd;

23
src/data/demloader.cpp
View File

@ -4,8 +4,6 @@
#include "demloader.h"
#define DOWNLOAD_LIMIT 16
static QList<DEM::Tile> tiles(const RectC &rect)
{
QList<DEM::Tile> list;
@ -34,6 +32,23 @@ DEMLoader::DEMLoader(const QString &dir, QObject *parent)
connect(_downloader, &Downloader::finished, this, &DEMLoader::finished);
}
int DEMLoader::numTiles(const RectC &rect) const
{
QList<DEM::Tile> tl(tiles(rect));
int cnt = 0;
for (int i = 0; i < tl.size(); i++) {
const DEM::Tile &t = tl.at(i);
QString fn(tileFile(t));
QString zn(fn + ".zip");
if (!(QFileInfo::exists(zn) || QFileInfo::exists(fn)))
cnt++;
}
return cnt;
}
bool DEMLoader::loadTiles(const RectC &rect)
{
QList<DEM::Tile> tl(tiles(rect));
@ -58,8 +73,8 @@ bool DEMLoader::loadTiles(const RectC &rect)
dl.append(Download(url, isZip(url) ? zn : fn));
}
if (dl.size() > DOWNLOAD_LIMIT) {
qWarning("DEM download limit exceeded.");
if (dl.size() > DEM_DOWNLOAD_LIMIT) {
qWarning("DEM download limit (%d) exceeded.", DEM_DOWNLOAD_LIMIT);
return false;
}
}

4
src/data/demloader.h
View File

@ -8,6 +8,9 @@
class RectC;
#define DEM_DOWNLOAD_WARNING 4
#define DEM_DOWNLOAD_LIMIT 1024
class DEMLoader : public QObject
{
Q_OBJECT
@ -18,6 +21,7 @@ public:
void setUrl(const QString &url) {_url = url;}
void setAuthorization(const Authorization &authorization);
int numTiles(const RectC &rect) const;
bool loadTiles(const RectC &rect);
bool checkTiles(const RectC &rect) const;

2
src/map/imgmap.h
View File

@ -74,6 +74,8 @@ public:
bool hidpi);
void unload();
bool usesDEM() const {return true;}
bool isValid() const {return _valid;}
QString errorString() const {return _errorString;}

1
src/map/map.h
View File

@ -57,6 +57,7 @@ public:
virtual void draw(QPainter *painter, const QRectF &rect, Flags flags) = 0;
virtual void clearCache() {}
virtual bool usesDEM() const {return false;}
signals:
void tilesLoaded();

2
src/map/mapsforgemap.h
View File

@ -71,6 +71,8 @@ public:
void draw(QPainter *painter, const QRectF &rect, Flags flags);
bool usesDEM() const {return true;}
bool isValid() const {return _data.isValid();}
QString errorString() const {return _data.errorString();}