Added initial WMTS support

gpxsee.pro

@@ -116,7 +116,10 @@ HEADERS += src/config.h \
     src/map/primemeridian.h \
     src/map/linearunits.h \
     src/map/ct.h \
-    src/map/mapsource.h
+    src/map/mapsource.h \
+    src/map/tileloader.h \
+    src/map/wmtsmap.h \
+    src/map/wmts.h
 SOURCES += src/main.cpp \
     src/common/coordinates.cpp \
     src/common/rectc.cpp \
@@ -202,7 +205,10 @@ SOURCES += src/main.cpp \
     src/map/angularunits.cpp \
     src/map/primemeridian.cpp \
     src/map/linearunits.cpp \
-    src/map/mapsource.cpp
+    src/map/mapsource.cpp \
+    src/map/tileloader.cpp \
+    src/map/wmtsmap.cpp \
+    src/map/wmts.cpp
 RESOURCES += gpxsee.qrc
 TRANSLATIONS = lang/gpxsee_cs.ts \
     lang/gpxsee_sv.ts \

src/GUI/app.cpp

@@ -4,7 +4,8 @@
 #include <QFileOpenEvent>
 #include <QNetworkProxyFactory>
 #include <QLibraryInfo>
-#include "map/onlinemap.h"
+#include "map/wmts.h"
+#include "map/tileloader.h"
 #include "map/downloader.h"
 #include "map/ellipsoid.h"
 #include "map/gcs.h"
@@ -36,7 +37,9 @@ App::App(int &argc, char **argv) : QApplication(argc, argv),
 #endif // Q_OS_MAC
 
 	QNetworkProxyFactory::setUseSystemConfiguration(true);
-	OnlineMap::setDownloader(new Downloader(this));
+	Downloader *dl = new Downloader(this);
+	TileLoader::setDownloader(dl);
+	WMTS::setDownloader(dl);
 	OPENGL_SET_SAMPLES(4);
 	loadDatums();
 	loadPCSs();

src/map/atlas.h

@@ -33,7 +33,7 @@ public:
 	void unload();
 
 	bool isValid() const {return _valid;}
-	const QString &errorString() const {return _errorString;}
+	QString errorString() const {return _errorString;}
 
 	static bool isAtlas(const QString &path);
 

src/map/downloader.cpp

@@ -61,7 +61,7 @@ bool Downloader::saveToDisk(const QString &filename, QIODevice *data)
 	QFile file(filename);
 
 	if (!file.open(QIODevice::WriteOnly)) {
-		qWarning("Error writing map tile: %s: %s\n",
+		qWarning("Error writing file: %s: %s\n",
 		  qPrintable(filename), qPrintable(file.errorString()));
 		return false;
 	}
@@ -80,11 +80,11 @@ void Downloader::downloadFinished(QNetworkReply *reply)
 		QUrl origin = reply->request().attribute(ATTR_ORIGIN).toUrl();
 		if (origin.isEmpty()) {
 			_errorDownloads.insert(url);
-			qWarning("Error downloading map tile: %s: %s\n",
+			qWarning("Error downloading file: %s: %s\n",
 			  url.toEncoded().constData(), qPrintable(reply->errorString()));
 		} else {
 			_errorDownloads.insert(origin);
-			qWarning("Error downloading map tile: %s -> %s: %s\n",
+			qWarning("Error downloading file: %s -> %s: %s\n",
 			  origin.toEncoded().constData(), url.toEncoded().constData(),
 			  qPrintable(reply->errorString()));
 		}
@@ -99,11 +99,11 @@ void Downloader::downloadFinished(QNetworkReply *reply)
 
 			if (location == url) {
 				_errorDownloads.insert(url);
-				qWarning("Error downloading map tile: %s: "
+				qWarning("Error downloading file: %s: "
 				  "redirect loop\n", url.toEncoded().constData());
 			} else if (level >= MAX_REDIRECT_LEVEL) {
 				_errorDownloads.insert(origin);
-				qWarning("Error downloading map tile: %s: "
+				qWarning("Error downloading file: %s: "
 				  "redirect level limit reached\n",
 				  origin.toEncoded().constData());
 			} else {

src/map/map.h

@@ -40,6 +40,9 @@ public:
 
 	void setBackgroundColor(const QColor &color) {_backgroundColor = color;}
 
+	virtual bool isValid() const {return true;}
+	virtual QString errorString() const {return QString();}
+
 signals:
 	void loaded();
 

src/map/maplist.cpp

@@ -13,7 +13,7 @@ bool MapList::loadSource(const QString &path, bool dir)
 	MapSource ms;
 	Map *map;
 
-	if (!ms.loadFile(path, &map)) {
+	if (!(map = ms.loadFile(path))) {
 		if (dir)
 			_errorString += path + ": " + ms.errorString() + "\n";
 		else

src/map/mapsource.cpp

@@ -1,6 +1,7 @@
 #include <QFile>
 #include <QXmlStreamReader>
 #include "onlinemap.h"
+#include "wmtsmap.h"
 #include "mapsource.h"
 
 
@@ -121,13 +122,17 @@ RectC MapSource::bounds(QXmlStreamReader &reader)
 	return RectC(Coordinates(left, top), Coordinates(right, bottom));
 }
 
-void MapSource::map(QXmlStreamReader &reader, Map **map)
+Map *MapSource::map(QXmlStreamReader &reader)
 {
-	QString name, url;
+	QString name, url, format, layer, style, tileMatrixSet;
 	Range z(ZOOM_MIN, ZOOM_MAX);
 	RectC b(Coordinates(BOUNDS_LEFT, BOUNDS_TOP),
 	  Coordinates(BOUNDS_RIGHT, BOUNDS_BOTTOM));
 
+	const QXmlStreamAttributes &attr = reader.attributes();
+	bool wmts = (attr.hasAttribute("type") && attr.value("type") == "WMTS")
+	 ? true : false;
+
 	while (reader.readNextStartElement()) {
 		if (reader.name() == "name")
 			name = reader.readElementText();
@@ -139,34 +144,53 @@ void MapSource::map(QXmlStreamReader &reader, Map **map)
 		} else if (reader.name() == "bounds") {
 			b = bounds(reader);
 			reader.skipCurrentElement();
-		} else
+		} else if (reader.name() == "format")
+			format = reader.readElementText();
+		else if (reader.name() == "layer")
+			layer = reader.readElementText();
+		else if (reader.name() == "style")
+			style = reader.readElementText();
+		else if (reader.name() == "tilematrixset")
+			tileMatrixSet = reader.readElementText();
+		else
 			reader.skipCurrentElement();
 	}
 
-	*map = reader.error() ? 0 : new OnlineMap(name, url, z, b);
+	if (reader.error())
+		return 0;
+	else if (wmts)
+		return new WMTSMap(name, url, format, layer, style, tileMatrixSet);
+	else
+		return new OnlineMap(name, url, z, b);
 }
 
-bool MapSource::loadFile(const QString &path, Map **map)
+Map *MapSource::loadFile(const QString &path)
 {
 	QFile file(path);
 	QXmlStreamReader reader;
+	Map *map = 0;
 
 	if (!file.open(QFile::ReadOnly | QFile::Text)) {
 		_errorString = file.errorString();
-		return false;
+		return map;
 	}
 
 	reader.setDevice(&file);
 
 	if (reader.readNextStartElement()) {
 		if (reader.name() == "map")
-			MapSource::map(reader, map);
+			map = MapSource::map(reader);
 		else
 			reader.raiseError("Not an online map source file");
 	}
 
-	_errorString = reader.error() ? QString("%1: %2").arg(reader.lineNumber())
+	if (!map)
-	  .arg(reader.errorString()) : QString();
+		_errorString = QString("%1: %2").arg(reader.lineNumber())
-
+		  .arg(reader.errorString());
-	return !reader.error();
+	else if (!map->isValid()) {
+		_errorString = map->errorString();
+		delete map; map = 0;
+	}
+
+	return map;
 }

src/map/mapsource.h

@@ -11,13 +11,13 @@ class QXmlStreamReader;
 class MapSource
 {
 public:
-	bool loadFile(const QString &path, Map **map);
+	Map *loadFile(const QString &path);
 	const QString &errorString() const {return _errorString;}
 
 private:
 	RectC bounds(QXmlStreamReader &reader);
 	Range zooms(QXmlStreamReader &reader);
-	void map(QXmlStreamReader &reader, Map **map);
+	Map *map(QXmlStreamReader &reader);
 
 	QString _errorString;
 };

src/map/offlinemap.h

@@ -41,7 +41,7 @@ public:
 	void unload();
 
 	bool isValid() const {return _valid;}
-	const QString &errorString() const {return _errorString;}
+	QString errorString() const {return _errorString;}
 
 	QPointF ll2pp(const Coordinates &c) const
 	  {return _projection.ll2xy(c);}

src/map/onlinemap.cpp

@@ -1,5 +1,3 @@
-#include <QFileInfo>
-#include <QDir>
 #include <QPainter>
 #include "common/coordinates.h"
 #include "common/rectc.h"
@@ -41,45 +39,26 @@ static int scale2zoom(qreal scale)
 	return (int)log2(360.0/(scale * (qreal)TILE_SIZE));
 }
 
-static bool loadTileFile(Tile &tile, const QString &file)
-{
-	if (!tile.pixmap().load(file)) {
-		qWarning("%s: error loading tile file\n", qPrintable(file));
-		return false;
-	}
-
-	return true;
-}
-
-
-Downloader *OnlineMap::downloader;
 
 OnlineMap::OnlineMap(const QString &name, const QString &url,
   const Range &zooms, const RectC &bounds, QObject *parent)
-  : Map(parent), _name(name), _url(url), _zooms(zooms), _bounds(bounds)
+  : Map(parent), _name(name), _zooms(zooms), _bounds(bounds)
 {
 	_block = false;
 	_zoom = _zooms.max();
-
+	_tileLoader = TileLoader(url, TILES_DIR + "/" + name);
-	QString path = TILES_DIR + QString("/") + name;
-	if (!QDir().mkpath(path))
-		qWarning("Error creating tiles dir: %s\n", qPrintable(path));
 }
 
 void OnlineMap::load()
 {
-	connect(downloader, SIGNAL(finished()), this, SLOT(emitLoaded()));
+	connect(TileLoader::downloader(), SIGNAL(finished()), this,
+	  SLOT(emitLoaded()));
 }
 
 void OnlineMap::unload()
 {
-	disconnect(downloader, SIGNAL(finished()), this, SLOT(emitLoaded()));
+	disconnect(TileLoader::downloader(), SIGNAL(finished()), this,
-}
+	  SLOT(emitLoaded()));
-
-void OnlineMap::fillTile(Tile &tile)
-{
-	tile.pixmap() = QPixmap(TILE_SIZE, TILE_SIZE);
-	tile.pixmap().fill(_backgroundColor);
 }
 
 void OnlineMap::emitLoaded()
@@ -87,91 +66,6 @@ void OnlineMap::emitLoaded()
 	emit loaded();
 }
 
-void OnlineMap::loadTilesAsync(QList<Tile> &list)
-{
-	QList<Download> dl;
-
-	for (int i = 0; i < list.size(); i++) {
-		Tile &t = list[i];
-		QString file = tileFile(t);
-		QFileInfo fi(file);
-
-		if (!fi.exists()) {
-			fillTile(t);
-			dl.append(Download(tileUrl(t), file));
-		} else
-			loadTileFile(t, file);
-	}
-
-	if (!dl.empty())
-		downloader->get(dl);
-}
-
-void OnlineMap::loadTilesSync(QList<Tile> &list)
-{
-	QList<Download> dl;
-
-	for (int i = 0; i < list.size(); i++) {
-		Tile &t = list[i];
-		QString file = tileFile(t);
-		QFileInfo fi(file);
-
-		if (!fi.exists())
-			dl.append(Download(tileUrl(t), file));
-		else
-			loadTileFile(t, file);
-	}
-
-	if (dl.empty())
-		return;
-
-	QEventLoop wait;
-	connect(downloader, SIGNAL(finished()), &wait, SLOT(quit()));
-	if (downloader->get(dl))
-		wait.exec();
-
-	for (int i = 0; i < list.size(); i++) {
-		Tile &t = list[i];
-
-		if (t.pixmap().isNull()) {
-			QString file = tileFile(t);
-			QFileInfo fi(file);
-
-			if (!(fi.exists() && loadTileFile(t, file)))
-				fillTile(t);
-		}
-	}
-}
-
-QString OnlineMap::tileUrl(const Tile &tile) const
-{
-	QString url(_url);
-
-	url.replace("$z", QString::number(tile.zoom()));
-	url.replace("$x", QString::number(tile.xy().x()));
-	url.replace("$y", QString::number(tile.xy().y()));
-
-	return url;
-}
-
-QString OnlineMap::tileFile(const Tile &tile) const
-{
-	QString file = TILES_DIR + QString("/%1/%2-%3-%4").arg(name())
-	  .arg(tile.zoom()).arg(tile.xy().x()).arg(tile.xy().y());
-
-	return file;
-}
-
-void OnlineMap::clearCache()
-{
-	QString path = TILES_DIR + QString("/") + name();
-	QDir dir = QDir(path);
-	QStringList list = dir.entryList();
-
-	for (int i = 0; i < list.count(); i++)
-		dir.remove(list.at(i));
-}
-
 QRectF OnlineMap::bounds() const
 {
 	return QRectF(ll2xy(_bounds.topLeft()), ll2xy(_bounds.bottomRight()));
@@ -245,14 +139,18 @@ void OnlineMap::draw(QPainter *painter, const QRectF &rect)
 			tiles.append(Tile(QPoint(tile.x() + i, tile.y() + j), _zoom));
 
 	if (_block)
-		loadTilesSync(tiles);
+		_tileLoader.loadTilesSync(tiles);
 	else
-		loadTilesAsync(tiles);
+		_tileLoader.loadTilesAsync(tiles);
 
 	for (int i = 0; i < tiles.count(); i++) {
 		Tile &t = tiles[i];
 		QPoint tp(tl.x() + (t.xy().x() - tile.x()) * TILE_SIZE,
 		  tl.y() + (t.xy().y() - tile.y()) * TILE_SIZE);
+		if (t.pixmap().isNull())
+			painter->fillRect(QRect(tp, QSize(TILE_SIZE, TILE_SIZE)),
+			  _backgroundColor);
+		else
 			painter->drawPixmap(tp, t.pixmap());
 	}
 }

src/map/onlinemap.h

@@ -5,9 +5,7 @@
 #include "common/range.h"
 #include "common/rectc.h"
 #include "map.h"
-#include "tile.h"
+#include "tileloader.h"
-
-class Downloader;
 
 class OnlineMap : public Map
 {
@@ -36,10 +34,7 @@ public:
 	void draw(QPainter *painter, const QRectF &rect);
 
 	void setBlockingMode(bool block) {_block = block;}
-	void clearCache();
+	void clearCache() {_tileLoader.clearCache();}
-
-	static void setDownloader(Downloader *downloader)
-	  {OnlineMap::downloader = downloader;}
 
 	void load();
 	void unload();
@@ -50,22 +45,14 @@ private slots:
 private:
 	QPointF ll2xy(const Coordinates &c) const;
 	Coordinates xy2ll(const QPointF &p) const;
-
-	void fillTile(Tile &tile);
-	QString tileUrl(const Tile &tile) const;
-	QString tileFile(const Tile &tile) const;
-	void loadTilesAsync(QList<Tile> &list);
-	void loadTilesSync(QList<Tile> &list);
 	int limitZoom(int zoom) const;
 
+	TileLoader _tileLoader;
 	QString _name;
-	QString _url;
 	Range _zooms;
 	RectC _bounds;
 	int _zoom;
 	bool _block;
-
-	static Downloader *downloader;
 };
 
 #endif // ONLINEMAP_H

src/map/projection.h

@@ -77,9 +77,14 @@ public:
 
 	Projection &operator=(const Projection &p);
 
+	bool isNull() const {return (_gcs == 0 && _ct == 0 && _units.isNull());}
+	bool isValid() const {return (_gcs == 0 || _ct == 0 || _units.isNull());}
+
 	QPointF ll2xy(const Coordinates &c) const;
 	Coordinates xy2ll(const QPointF &p) const;
 
+	const LinearUnits &units() const {return _units;}
+
 private:
 	const GCS * _gcs;
 	CT *_ct;

src/map/tileloader.cpp

@@ -0,0 +1,106 @@
+#include <QDir>
+#include <QFileInfo>
+#include <QEventLoop>
+#include "downloader.h"
+#include "tileloader.h"
+
+
+static bool loadTileFile(Tile &tile, const QString &file)
+{
+	if (!tile.pixmap().load(file)) {
+		qWarning("%s: error loading tile file\n", qPrintable(file));
+		return false;
+	}
+
+	return true;
+}
+
+Downloader *TileLoader::_downloader = 0;
+
+TileLoader::TileLoader(const QString &url, const QString &dir)
+  : _url(url), _dir(dir)
+{
+	if (!QDir().mkpath(_dir))
+		qWarning("Error creating tiles dir: %s\n", qPrintable(_dir));
+}
+
+void TileLoader::loadTilesAsync(QList<Tile> &list)
+{
+	QList<Download> dl;
+
+	for (int i = 0; i < list.size(); i++) {
+		Tile &t = list[i];
+		QString file = tileFile(t);
+		QFileInfo fi(file);
+
+		if (!fi.exists())
+			dl.append(Download(tileUrl(t), file));
+		else
+			loadTileFile(t, file);
+	}
+
+	if (!dl.empty())
+		_downloader->get(dl);
+}
+
+void TileLoader::loadTilesSync(QList<Tile> &list)
+{
+	QList<Download> dl;
+
+	for (int i = 0; i < list.size(); i++) {
+		Tile &t = list[i];
+		QString file = tileFile(t);
+		QFileInfo fi(file);
+
+		if (!fi.exists())
+			dl.append(Download(tileUrl(t), file));
+		else
+			loadTileFile(t, file);
+	}
+
+	if (dl.empty())
+		return;
+
+	QEventLoop wait;
+	QObject::connect(_downloader, SIGNAL(finished()), &wait, SLOT(quit()));
+	if (_downloader->get(dl))
+		wait.exec();
+
+	for (int i = 0; i < list.size(); i++) {
+		Tile &t = list[i];
+
+		if (t.pixmap().isNull()) {
+			QString file = tileFile(t);
+			if (QFileInfo(file).exists())
+				loadTileFile(t, file);
+		}
+	}
+}
+
+void TileLoader::clearCache()
+{
+	QDir dir = QDir(_dir);
+	QStringList list = dir.entryList();
+
+	for (int i = 0; i < list.count(); i++)
+		dir.remove(list.at(i));
+}
+
+QString TileLoader::tileUrl(const Tile &tile) const
+{
+	QString url(_url);
+
+	url.replace("$z", QString::number(tile.zoom()));
+	url.replace("$x", QString::number(tile.xy().x()));
+	url.replace("$y", QString::number(tile.xy().y()));
+
+	return url;
+}
+
+QString TileLoader::tileFile(const Tile &tile) const
+{
+	QString file = _dir + QString("/%1-%2-%3").arg(tile.zoom())
+	  .arg(tile.xy().x()).arg(tile.xy().y());
+
+	return file;
+}

src/map/tileloader.h

@@ -0,0 +1,33 @@
+#ifndef TILELOADER_H
+#define TILELOADER_H
+
+#include <QString>
+#include "tile.h"
+#include "downloader.h"
+
+class TileLoader
+{
+public:
+	TileLoader() {}
+	TileLoader(const QString &url, const QString &dir);
+
+	void loadTilesAsync(QList<Tile> &list);
+	void loadTilesSync(QList<Tile> &list);
+	void clearCache();
+
+	static Downloader *downloader() {return _downloader;}
+	static void setDownloader(Downloader *downloader)
+	  {_downloader = downloader;}
+
+private:
+	void fillTile(Tile &tile);
+	QString tileUrl(const Tile &tile) const;
+	QString tileFile(const Tile &tile) const;
+
+	QString _url;
+	QString _dir;
+
+	static Downloader *_downloader;
+};
+
+#endif // TILELOADER_Honlinemap

src/map/wmts.cpp

@@ -0,0 +1,169 @@
+#include <QXmlStreamReader>
+#include <QFile>
+#include <QFileInfo>
+#include <QEventLoop>
+#include <QTextStream>
+#include "downloader.h"
+#include "pcs.h"
+#include "wmts.h"
+
+
+Downloader *WMTS::_downloader = 0;
+
+bool WMTS::createProjection(const QString &crs)
+{
+	QStringList list(crs.split(':'));
+	QString authority, code;
+	const PCS *pcs;
+
+	switch (list.size()) {
+		case 2:
+			authority = list.at(0);
+			code = list.at(1);
+			break;
+		case 7:
+			authority = list.at(4);
+			code = list.at(6);
+			break;
+		default:
+			return false;
+	}
+
+	if (authority != "EPSG")
+		return false;
+	if (!(pcs = PCS::pcs(code.toInt())))
+		return false;
+
+	_projection = Projection(pcs->gcs(), pcs->method(), pcs->setup(),
+	  pcs->units());
+	return true;
+}
+
+void WMTS::tileMatrix(QXmlStreamReader &reader)
+{
+	Zoom zoom;
+
+	while (reader.readNextStartElement()) {
+		if (reader.name() == "ScaleDenominator")
+			zoom.scaleDenominator = reader.readElementText().toDouble();
+		else if (reader.name() == "TopLeftCorner") {
+			QString str = reader.readElementText();
+			QTextStream(&str) >> zoom.topLeft.rx() >> zoom.topLeft.ry();
+		} else if (reader.name() == "TileWidth")
+			zoom.tile.setWidth(reader.readElementText().toInt());
+		else if (reader.name() == "TileHeight")
+			zoom.tile.setHeight(reader.readElementText().toInt());
+		else if (reader.name() == "MatrixWidth")
+			zoom.matrix.setWidth(reader.readElementText().toInt());
+		else if (reader.name() == "MatrixHeight")
+			zoom.matrix.setHeight(reader.readElementText().toInt());
+		else
+			reader.skipCurrentElement();
+	}
+
+	_zooms.append(zoom);
+}
+
+void WMTS::tileMatrixSet(QXmlStreamReader &reader, const QString &set)
+{
+	QString id;
+
+	while (reader.readNextStartElement()) {
+		if (reader.name() == "Identifier")
+			id = reader.readElementText();
+		else if (reader.name() == "SupportedCRS" && id == set) {
+			if (!createProjection(reader.readElementText()))
+				reader.raiseError("Invalid/unknown CRS");
+		} else if (reader.name() == "TileMatrix" && id == set)
+			tileMatrix(reader);
+		else
+			reader.skipCurrentElement();
+	}
+}
+
+void WMTS::contents(QXmlStreamReader &reader, const QString &set)
+{
+	while (reader.readNextStartElement()) {
+		if (reader.name() == "TileMatrixSet")
+			tileMatrixSet(reader, set);
+		else
+			reader.skipCurrentElement();
+	}
+}
+
+void WMTS::capabilities(QXmlStreamReader &reader, const QString &set)
+{
+	while (reader.readNextStartElement()) {
+		if (reader.name() == "Contents")
+			contents(reader, set);
+		else
+			reader.skipCurrentElement();
+	}
+}
+
+bool WMTS::parseCapabilities(const QString &path, const QString &tileMatrixSet)
+{
+	QFile file(path);
+	QXmlStreamReader reader;
+
+	if (!file.open(QFile::ReadOnly | QFile::Text)) {
+		_errorString = file.errorString();
+		return false;
+	}
+
+	reader.setDevice(&file);
+
+	if (reader.readNextStartElement()) {
+		if (reader.name() == "Capabilities")
+			capabilities(reader, tileMatrixSet);
+		else
+			reader.raiseError("Not a Capabilities XML file");
+	}
+
+	_errorString = reader.error() ? QString("%1:%2: %3").arg(path)
+	  .arg(reader.lineNumber()).arg(reader.errorString()) : QString();
+
+	return reader.error() ? false : true;
+}
+
+bool WMTS::getCapabilities(const QString &url, const QString &file)
+{
+	QList<Download> dl;
+
+	QString capabilitiesUrl = QString("%1?service=WMTS&Version=1.0.0"
+	  "&request=GetCapabilities").arg(url);
+	dl.append(Download(capabilitiesUrl, file));
+
+	QEventLoop wait;
+	QObject::connect(_downloader, SIGNAL(finished()), &wait, SLOT(quit()));
+	if (_downloader->get(dl))
+		wait.exec();
+
+	if (QFileInfo(file).exists())
+		return true;
+	else {
+		_errorString = "Error downloading capabilities XML file";
+		return false;
+	}
+}
+
+bool WMTS::load(const QString &file, const QString &url,
+  const QString &tileMatrixSet)
+{
+	if (!QFileInfo(file).exists())
+		if (!getCapabilities(url, file))
+			return false;
+	if (!parseCapabilities(file, tileMatrixSet))
+		return false;
+
+	if (_projection.isNull()) {
+		_errorString = "Missing CRS definition";
+		return false;
+	}
+	if (_zooms.isEmpty()) {
+		_errorString = "No tile matrix found";
+		return false;
+	}
+
+	return true;
+}

src/map/wmts.h

@@ -0,0 +1,50 @@
+#ifndef WMTS_H
+#define WMTS_H
+
+#include <QSize>
+#include <QList>
+#include "projection.h"
+
+class QXmlStreamReader;
+class Downloader;
+
+class WMTS
+{
+public:
+	struct Zoom {
+		qreal scaleDenominator;
+		QPointF topLeft;
+		QSize tile;
+		QSize matrix;
+	};
+
+	bool load(const QString &path, const QString &url,
+	  const QString &tileMatrixSet);
+	const QString &errorString() const {return _errorString;}
+
+	const QList<Zoom> &zooms() {return _zooms;}
+	const Projection &projection() {return _projection;}
+
+	static Downloader *downloader() {return _downloader;}
+	static void setDownloader(Downloader *downloader)
+	  {_downloader = downloader;}
+
+private:
+	bool createProjection(const QString &crs);
+
+	void tileMatrix(QXmlStreamReader &reader);
+	void tileMatrixSet(QXmlStreamReader &reader, const QString &set);
+	void contents(QXmlStreamReader &reader, const QString &set);
+	void capabilities(QXmlStreamReader &reader, const QString &set);
+	bool parseCapabilities(const QString &path, const QString &tileMatrixSet);
+	bool getCapabilities(const QString &url, const QString &file);
+
+	QList<Zoom> _zooms;
+	Projection _projection;
+
+	QString _errorString;
+
+	static Downloader *_downloader;
+};
+
+#endif // WMTS_H

src/map/wmtsmap.cpp

@@ -0,0 +1,203 @@
+#include <QPainter>
+#include "common/rectc.h"
+#include "config.h"
+#include "transform.h"
+#include "wmts.h"
+#include "wmtsmap.h"
+
+
+#define CAPABILITIES_FILE "capabilities.xml"
+
+WMTSMap::WMTSMap(const QString &name, const QString &url, const QString &format,
+  const QString &layer, const QString &style, const QString &tileMatrixSet,
+  QObject *parent) : Map(parent), _name(name), _url(url),
+  _tileMatrixSet(tileMatrixSet), _zoom(0), _valid(false)
+{
+	QString dir(TILES_DIR + "/" + _name);
+	QString file = dir + "/" + CAPABILITIES_FILE;
+
+	QString tileUrl = QString("%1?service=WMTS&Version=1.0.0&request=GetTile"
+	  "&Format=%2&Layer=%3&Style=%4&TileMatrixSet=%5&TileMatrix=$z&TileRow=$y"
+	  "&TileCol=$x").arg(_url).arg(format).arg(layer).arg(style)
+	  .arg(_tileMatrixSet);
+	_tileLoader = TileLoader(tileUrl, dir);
+
+	WMTS wmts;
+	if (!wmts.load(file, _url, _tileMatrixSet)) {
+		_errorString = wmts.errorString();
+		return;
+	}
+	_zooms = wmts.zooms();
+	_projection = wmts.projection();
+
+	updateTransform();
+
+	_block = false;
+	_valid = true;
+}
+
+qreal WMTSMap::sd2res(qreal scaleDenominator) const
+{
+	return scaleDenominator * 0.28e-3 * _projection.units().fromMeters(1.0);
+}
+
+void WMTSMap::updateTransform()
+{
+	const WMTS::Zoom &z = _zooms.at(_zoom);
+	ReferencePoint tl, br;
+
+	qreal pixelSpan = sd2res(z.scaleDenominator);
+	QPointF tileSpan(z.tile.width() * pixelSpan, z.tile.height() * pixelSpan);
+	QPointF bottomRight(z.topLeft.x() + tileSpan.x() * z.matrix.width(),
+	  z.topLeft.y() - tileSpan.y() * z.matrix.height());
+
+	tl.xy = QPoint(0, 0);
+	tl.pp = z.topLeft;
+	br.xy = QPoint(z.tile.width() * z.matrix.width(),
+	  z.tile.height() * z.matrix.height());
+	br.pp = bottomRight;
+
+	QList<ReferencePoint> points;
+	points << tl << br;
+	Transform tr(points);
+	_transform = tr.transform();
+	_inverted = _transform.inverted();
+}
+
+void WMTSMap::load()
+{
+	connect(TileLoader::downloader(), SIGNAL(finished()), this,
+	  SLOT(emitLoaded()));
+}
+
+void WMTSMap::unload()
+{
+	disconnect(TileLoader::downloader(), SIGNAL(finished()), this,
+	  SLOT(emitLoaded()));
+}
+
+void WMTSMap::clearCache()
+{
+	QString dir(TILES_DIR + "/" + _name);
+	QString file = dir + "/" + CAPABILITIES_FILE;
+
+	_tileLoader.clearCache();
+
+	WMTS wmts;
+	if (!wmts.load(file, _url, _tileMatrixSet))
+		return;
+	_zooms = wmts.zooms();
+	_projection = wmts.projection();
+
+	if (_zoom >= _zooms.size())
+		_zoom = _zooms.size() - 1;
+	updateTransform();
+}
+
+void WMTSMap::emitLoaded()
+{
+	emit loaded();
+}
+
+QRectF WMTSMap::bounds() const
+{
+	const WMTS::Zoom &z = _zooms.at(_zoom);
+	return QRectF(QPointF(0, 0), QSize(z.tile.width() * z.matrix.width(),
+	  z.tile.height() * z.matrix.height()));
+}
+
+qreal WMTSMap::zoomFit(const QSize &size, const RectC &br)
+{
+	_zoom = 0;
+
+	if (br.isValid()) {
+		QRectF tbr(_projection.ll2xy(br.topLeft()),
+		  _projection.ll2xy(br.bottomRight()));
+		QPointF sc(tbr.width() / size.width(), tbr.height() / size.height());
+		qreal resolution = qMax(qAbs(sc.x()), qAbs(sc.y()));
+
+		for (int i = 0; i < _zooms.size(); i++) {
+			if (sd2res(_zooms.at(i).scaleDenominator) < resolution)
+				break;
+			_zoom = i;
+		}
+	}
+
+	updateTransform();
+	return _zoom;
+}
+
+qreal WMTSMap::zoomFit(qreal resolution, const Coordinates &c)
+{
+	Q_UNUSED(c);
+
+	_zoom = 0;
+
+	for (int i = 0; i < _zooms.size(); i++) {
+		if (sd2res(_zooms.at(i).scaleDenominator) < resolution)
+			break;
+		_zoom = i;
+	}
+
+	updateTransform();
+	return _zoom;
+}
+
+qreal WMTSMap::resolution(const QPointF &p) const
+{
+	Q_UNUSED(p);
+
+	return sd2res(_zooms.at(_zoom).scaleDenominator);
+}
+
+qreal WMTSMap::zoomIn()
+{
+	_zoom = qMin(_zoom + 1, _zooms.size() - 1);
+	updateTransform();
+	return _zoom;
+}
+
+qreal WMTSMap::zoomOut()
+{
+	_zoom = qMax(_zoom - 1, 0);
+	updateTransform();
+	return _zoom;
+}
+
+void WMTSMap::draw(QPainter *painter, const QRectF &rect)
+{
+	const WMTS::Zoom &z = _zooms.at(_zoom);
+	QPoint tl = QPoint((int)floor(rect.left() / (qreal)z.tile.width()),
+	  (int)floor(rect.top() / (qreal)z.tile.height()));
+	QPoint br = QPoint((int)floor(rect.right() / (qreal)z.tile.width()),
+	  (int)floor(rect.bottom() / (qreal)z.tile.height()));
+
+	QList<Tile> tiles;
+	for (int i = tl.x(); i <= br.x(); i++)
+		for (int j = tl.y(); j <= br.y(); j++)
+			tiles.append(Tile(QPoint(i, j), _zoom));
+
+	if (_block)
+		_tileLoader.loadTilesSync(tiles);
+	else
+		_tileLoader.loadTilesAsync(tiles);
+
+	for (int i = 0; i < tiles.count(); i++) {
+		Tile &t = tiles[i];
+		QPoint tp(t.xy().x() * z.tile.width(), t.xy().y() * z.tile.height());
+		if (t.pixmap().isNull())
+			painter->fillRect(QRect(tp, z.tile), _backgroundColor);
+		else
+			painter->drawPixmap(tp, t.pixmap());
+	}
+}
+
+QPointF WMTSMap::ll2xy(const Coordinates &c) const
+{
+	return _transform.map(_projection.ll2xy(c));
+}
+
+Coordinates WMTSMap::xy2ll(const QPointF &p) const
+{
+	return _projection.xy2ll(_inverted.map(p));
+}

src/map/wmtsmap.h

@@ -0,0 +1,69 @@
+#ifndef WMTSMAP_H
+#define WMTSMAP_H
+
+#include <QTransform>
+#include "projection.h"
+#include "map.h"
+#include "wmts.h"
+#include "tileloader.h"
+
+
+class WMTSMap : public Map
+{
+	Q_OBJECT
+
+public:
+	WMTSMap(const QString &name, const QString &url, const QString &format,
+	  const QString &layer, const QString &style, const QString &tileMatrixSet,
+	  QObject *parent = 0);
+
+	const QString &name() const {return _name;}
+
+	QRectF bounds() const;
+	qreal resolution(const QPointF &p) const;
+
+	qreal zoom() const {return _zoom;}
+	qreal zoomFit(const QSize &size, const RectC &br);
+	qreal zoomFit(qreal resolution, const Coordinates &c);
+	qreal zoomIn();
+	qreal zoomOut();
+
+	QPointF ll2xy(const Coordinates &c)
+		{return static_cast<const WMTSMap &>(*this).ll2xy(c);}
+	Coordinates xy2ll(const QPointF &p)
+		{return static_cast<const WMTSMap &>(*this).xy2ll(p);}
+
+	void draw(QPainter *painter, const QRectF &rect);
+
+	void setBlockingMode(bool block) {_block = block;}
+	void clearCache();
+
+	void load();
+	void unload();
+
+	bool isValid() const {return _valid;}
+	QString errorString() const {return _errorString;}
+
+private slots:
+	void emitLoaded();
+
+private:
+	qreal sd2res(qreal scaleDenominator) const;
+	void updateTransform();
+
+	QPointF ll2xy(const Coordinates &c) const;
+	Coordinates xy2ll(const QPointF &p) const;
+
+	QString _name, _url, _tileMatrixSet;
+	TileLoader _tileLoader;
+	QList<WMTS::Zoom> _zooms;
+	Projection _projection;
+	QTransform _transform, _inverted;
+	int _zoom;
+	bool _block;
+
+	bool _valid;
+	QString _errorString;
+};
+
+#endif // WMTSMAP_H