ENC parser optimizations

+ ENC style enhancements

gpxsee.pro

@@ -116,7 +116,13 @@ HEADERS += src/common/config.h \
     src/GUI/passwordedit.h \
     src/data/style.h \
     src/data/twonavparser.h \
+    src/map/ENC/mapdata.h \
+    src/map/ENC/objects.h \
+    src/map/ENC/rastertile.h \
+    src/map/ENC/style.h \
     src/map/IMG/section.h \
+    src/map/encmap.h \
+    src/map/ENC/iso8211.h \
     src/map/gemfmap.h \
     src/map/oruxmap.h \
     src/map/osmdroidmap.h \
@@ -131,7 +137,7 @@ HEADERS += src/common/config.h \
     src/map/proj/krovak.h \
     src/map/proj/polarstereographic.h \
     src/map/proj/obliquestereographic.h \
-    src/map/IMG/bitmapline.h \
+    src/map/bitmapline.h \
     src/map/IMG/bitstream.h \
     src/map/IMG/deltastream.h \
     src/map/IMG/gmapdata.h \
@@ -322,6 +328,11 @@ SOURCES += src/main.cpp \
     src/GUI/projectioncombobox.cpp \
     src/GUI/passwordedit.cpp \
     src/data/twonavparser.cpp \
+    src/map/ENC/mapdata.cpp \
+    src/map/ENC/rastertile.cpp \
+    src/map/ENC/style.cpp \
+    src/map/encmap.cpp \
+    src/map/ENC/iso8211.cpp \
     src/map/gemfmap.cpp \
     src/map/oruxmap.cpp \
     src/map/osmdroidmap.cpp \
@@ -335,7 +346,7 @@ SOURCES += src/main.cpp \
     src/map/proj/krovak.cpp \
     src/map/proj/polarstereographic.cpp \
     src/map/proj/obliquestereographic.cpp \
-    src/map/IMG/bitmapline.cpp \
+    src/map/bitmapline.cpp \
     src/map/IMG/bitstream.cpp \
     src/map/IMG/deltastream.cpp \
     src/map/IMG/gmapdata.cpp \

gpxsee.qrc

@@ -149,6 +149,7 @@
 		<file alias="rock-dangerous.png">icons/IMG/marine/rock-dangerous.png</file>
 		<file alias="wreck.png">icons/IMG/marine/wreck.png</file>
 		<file alias="wreck-exposed.png">icons/IMG/marine/wreck-exposed.png</file>
+		<file alias="wreck-dangerous.png">icons/IMG/marine/wreck-dangerous.png</file>
 		<file alias="obstruction.png">icons/IMG/marine/obstruction.png</file>
 		<file alias="obstruction-covers.png">icons/IMG/marine/obstruction-covers.png</file>
 		<file alias="anchor-line.png">icons/IMG/marine/anchor-line.png</file>

src/GUI/stylecombobox.cpp

@@ -1,15 +1,13 @@
 #include <QPen>
 #include <QPainter>
 #include <QResizeEvent>
+#include "common/util.h"
 #include "stylecombobox.h"
 
 
 #define MIN_LINE_LENGTH  60
 #define LINE_WIDTH_RATIO 7
 
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*a))
-
-
 static Qt::PenStyle styles[] = {Qt::SolidLine, Qt::DashLine, Qt::DotLine,
   Qt::DashDotLine, Qt::DashDotDotLine};
 

src/common/polygon.h

@@ -3,6 +3,7 @@
 
 #include <QList>
 #include <QVector>
+#include <QDebug>
 #include "common/rectc.h"
 
 class Polygon
@@ -55,8 +56,19 @@ private:
 		return rect;
 	}
 
+	friend QDebug operator<<(QDebug dbg, const Polygon &poly);
+
 	QList<QVector<Coordinates> > _paths;
 	RectC _boundingRect;
 };
 
+
+#ifndef QT_NO_DEBUG
+inline QDebug operator<<(QDebug dbg, const Polygon &poly)
+{
+	dbg.nospace() << "Polygon(" << poly._paths << ")";
+	return dbg.space();
+}
+#endif // QT_NO_DEBUG
+
 #endif // POLYGON_H

src/common/util.cpp

@@ -113,6 +113,16 @@ double Util::niceNum(double x, bool round)
 	return nf * pow(10.0, expv);
 }
 
+int Util::log2i(unsigned val)
+{
+	int ret = 0;
+
+	while (val >>= 1)
+		ret++;
+
+	return ret;
+}
+
 QString Util::file2name(const QString &path)
 {
 	QFileInfo fi(displayName(path));

src/common/util.h

@@ -5,8 +5,12 @@
 
 class QTemporaryDir;
 
+#define ARRAY_SIZE(array) \
+  (sizeof(array) / sizeof(array[0]))
+
 namespace Util
 {
+	int log2i(unsigned val);
 	int str2int(const char *str, int len);
 	double niceNum(double x, bool round);
 	QString file2name(const QString &path);

src/map/ENC/iso8211.cpp

@@ -0,0 +1,328 @@
+#include <QFile>
+#include <QRegularExpression>
+#include "common/util.h"
+#include "iso8211.h"
+
+using namespace ENC;
+
+struct DR {
+	char RecordLength[5];
+	char InterchangeLevel;
+	char LeaderID;
+	char ExtensionFlag;
+	char Version;
+	char ApplicationIndicator;
+	char FieldControlLength[2];
+	char BaseAddress[5];
+	char ExtCharSetIndicator[3];
+	char FieldLengthSize;
+	char FieldPosSize;
+	char Reserved;
+	char FieldTagSize;
+};
+
+bool ISO8211::Field::subfield(const char *name, int *val, int idx) const
+{
+	const QVariant *v;
+	bool ok;
+
+	v = data().field(name, idx);
+	if (!v)
+		return false;
+	*val = v->toInt(&ok);
+
+	return ok;
+}
+
+bool ISO8211::Field::subfield(const char *name, uint *val, int idx) const
+{
+	const QVariant *v;
+	bool ok;
+
+	v = data().field(name, idx);
+	if (!v)
+		return false;
+	*val = v->toUInt(&ok);
+
+	return ok;
+}
+
+bool ISO8211::Field::subfield(const char *name, QByteArray *val, int idx) const
+{
+	const QVariant *v;
+
+	v = data().field(name, idx);
+	if (!v)
+		return false;
+	*val = v->toByteArray();
+
+	return true;
+}
+
+bool ISO8211::fieldType(const QString &str, int cnt, FieldType &type, int &size)
+{
+	if (str == "A" || str == "I" || str == "R") {
+		type = String;
+		size = cnt;
+	} else if (str == "B") {
+		type = Array;
+		size = cnt / 8;
+	} else if (str == "b11") {
+		type = U8;
+		size = 1;
+	} else if (str == "b12") {
+		type = U16;
+		size = 2;
+	} else if (str == "b14") {
+		type = U32;
+		size = 4;
+	} else if (str == "b21") {
+		type = S8;
+		size = 1;
+	} else if (str == "b22") {
+		type = S16;
+		size = 2;
+	} else if (str == "b24") {
+		type = S32;
+		size = 4;
+	} else
+		return false;
+
+	return true;
+}
+
+int ISO8211::readDR(QFile &file, QVector<FieldDefinition> &fields) const
+{
+	DR ddr;
+	QByteArray fieldLen, fieldPos;
+	int len, lenSize, posSize, tagSize, offset;
+
+	if (file.read((char*)&ddr, sizeof(ddr)) != sizeof(ddr))
+		return -1;
+
+	len = Util::str2int(ddr.RecordLength, sizeof(ddr.RecordLength));
+	offset = Util::str2int(ddr.BaseAddress, sizeof(ddr.BaseAddress));
+	lenSize = Util::str2int(&ddr.FieldLengthSize, sizeof(ddr.FieldLengthSize));
+	posSize = Util::str2int(&ddr.FieldPosSize, sizeof(ddr.FieldPosSize));
+	tagSize = Util::str2int(&ddr.FieldTagSize, sizeof(ddr.FieldTagSize));
+
+	if (len < 0 || offset < 0 || lenSize < 0 || posSize < 0 || tagSize < 0)
+		return -1;
+
+	fields.resize((offset - 1 - sizeof(DR)) / (lenSize + posSize + tagSize));
+	fieldLen.resize(lenSize);
+	fieldPos.resize(posSize);
+
+	for (int i = 0; i < fields.size(); i++) {
+		FieldDefinition &r = fields[i];
+
+		r.tag.resize(tagSize);
+
+		if (file.read(r.tag.data(), tagSize) != tagSize
+		  || file.read(fieldLen.data(), lenSize) != lenSize
+		  || file.read(fieldPos.data(), posSize) != posSize)
+			return -1;
+
+		r.pos = offset + Util::str2int(fieldPos.constData(), posSize);
+		r.size = Util::str2int(fieldLen.constData(), lenSize);
+
+		if (r.pos < 0 || r.size < 0)
+			return -1;
+	}
+
+	return len;
+}
+
+bool ISO8211::readDDA(QFile &file, const FieldDefinition &def, SubFields &fields)
+{
+	static QRegularExpression re("(\\d*)(\\w+)\\(*(\\d*)\\)*");
+	QByteArray ba;
+
+	ba.resize(def.size);
+	if (!(file.seek(def.pos) && file.read(ba.data(), ba.size()) == ba.size()))
+		return false;
+
+	QList<QByteArray> list(ba.split('\x1f'));
+	if (!list.at(1).isEmpty() && list.at(1).front() == '*') {
+		fields.setRepeat(true);
+		list[1].remove(0, 1);
+	}
+	QList<QByteArray> tags(list.at(1).split('!'));
+
+	if (list.size() > 2) {
+		QRegularExpressionMatchIterator it = re.globalMatch(list.at(2));
+		int tag = 0;
+
+		fields.resize(tags.size());
+
+		while (it.hasNext()) {
+			QRegularExpressionMatch match = it.next();
+			QString cntStr(match.captured(1));
+			QString typeStr(match.captured(2));
+			QString sizeStr(match.captured(3));
+			uint cnt = 1, size = 0;
+			bool ok;
+
+			if (!cntStr.isEmpty()) {
+				cnt = cntStr.toUInt(&ok);
+				if (!ok)
+					return false;
+			}
+			if (!sizeStr.isEmpty()) {
+				size = sizeStr.toUInt(&ok);
+				if (!ok)
+					return false;
+			}
+
+			for (uint i = 0; i < cnt; i++) {
+				SubFieldDefinition &f = fields[tag];
+				f.tag = tags.at(tag);
+				if (!fieldType(typeStr, size, f.type, f.size))
+					return false;
+				tag++;
+			}
+		}
+	}
+
+	return true;
+}
+
+bool ISO8211::readDDR(QFile &file)
+{
+	QVector<FieldDefinition> fields;
+	qint64 pos = file.pos();
+	int len = readDR(file, fields);
+
+	if (len < 0) {
+		_errorString = "Not a ENC file";
+		return false;
+	}
+
+	for (int i = 0; i < fields.size(); i++) {
+		SubFields def;
+		if (!readDDA(file, fields.at(i), def)) {
+			_errorString = QString("Error reading %1 DDA field")
+			  .arg(QString(fields.at(i).tag));
+			return false;
+		}
+		_map.insert(fields.at(i).tag, def);
+	}
+
+	if (file.pos() != pos + len || fields.size() < 2) {
+		_errorString = "DDR format error";
+		return false;
+	}
+
+	return true;
+}
+
+bool ISO8211::readUDA(QFile &file, quint64 pos, const FieldDefinition &def,
+  const SubFields &fields, Data &data) const
+{
+	QByteArray ba;
+
+	ba.resize(def.size);
+	if (!(file.seek(pos + def.pos)
+	  && file.read(ba.data(), ba.size()) == ba.size()))
+		return false;
+
+	const char *sp;
+	const char *dp = ba.constData();
+	const char *ep = ba.constData() + ba.size() - 1;
+
+	data.setFields(&fields);
+
+	do {
+		QVector<QVariant> row;
+		row.resize(fields.size());
+
+		for (int i = 0; i < fields.size(); i++) {
+			const SubFieldDefinition &f = fields.at(i);
+
+			switch (f.type) {
+				case String:
+				case Array:
+					if (f.size) {
+						row[i] = QVariant(QByteArray(dp, f.size));
+						dp += f.size;
+					} else {
+						sp = dp;
+						while (dp < ep && *dp != '\x1f')
+							dp++;
+						row[i] = QVariant(QByteArray(sp, dp - sp));
+						dp++;
+					}
+					break;
+				case S8:
+					row[i] = QVariant(*((qint8*)dp));
+					dp++;
+					break;
+				case S16:
+					row[i] = QVariant(INT16(dp));
+					dp += 2;
+					break;
+				case S32:
+					row[i] = QVariant(INT32(dp));
+					dp += 4;
+					break;
+				case U8:
+					row[i] = QVariant(*((quint8*)dp));
+					dp++;
+					break;
+				case U16:
+					row[i] = QVariant(UINT16(dp));
+					dp += 2;
+					break;
+				case U32:
+					row[i] = QVariant(UINT32(dp));
+					dp += 4;
+					break;
+			}
+		}
+
+		data.append(row);
+	} while (fields.repeat() && dp < ep);
+
+	return true;
+}
+
+bool ISO8211::readRecord(QFile &file, Record &record)
+{
+	QVector<FieldDefinition> fields;
+	qint64 pos = file.pos();
+	int len = readDR(file, fields);
+
+	if (len < 0) {
+		_errorString = "Error reading DR";
+		return false;
+	}
+
+	record.resize(fields.size());
+
+	for (int i = 0; i < fields.size(); i++) {
+		const FieldDefinition &def = fields.at(i);
+		Field &f = record[i];
+
+		FieldsMap::const_iterator it = _map.find(def.tag);
+		if (it == _map.constEnd()) {
+			_errorString = QString("%1: unknown record")
+			  .arg(QString(def.tag));
+			return false;
+		}
+
+		f.setTag(def.tag);
+
+		if (!readUDA(file, pos, def, it.value(), f.rdata())) {
+			_errorString = QString("Error reading %1 record")
+			  .arg(QString(def.tag));
+			return false;
+		}
+	}
+
+	if (file.pos() != pos + len) {
+		_errorString = "Record format error";
+		return false;
+	}
+
+	return true;
+}

src/map/ENC/iso8211.h

@@ -0,0 +1,148 @@
+#ifndef ENC_ISO8211_H
+#define ENC_ISO8211_H
+
+#include <QByteArray>
+#include <QVariant>
+#include <QDebug>
+
+class QFile;
+
+#define UINT32(x) \
+  (((quint32)*(const uchar*)(x)) \
+  | ((quint32)(*((const uchar*)(x) + 1)) << 8) \
+  | ((quint32)(*((const uchar*)(x) + 2)) << 16) \
+  | ((quint32)(*((const uchar*)(x) + 3)) << 24))
+
+#define UINT16(x) \
+  (((quint16)*(const uchar*)(x)) \
+  | ((quint16)(*((const uchar*)(x) + 1)) << 8))
+
+#define INT32(x) ((qint32)UINT32(x))
+#define INT16(x) ((qint16)UINT16(x))
+
+namespace ENC {
+
+class ISO8211
+{
+public:
+	enum FieldType {String, Array, S8, S16, S32, U8, U16, U32};
+
+	struct FieldDefinition {
+		QByteArray tag;
+		int pos;
+		int size;
+	};
+
+	struct SubFieldDefinition {
+		QByteArray tag;
+		FieldType type;
+		int size;
+	};
+
+	class SubFields : public QVector<SubFieldDefinition>
+	{
+	public:
+		SubFields() : QVector<SubFieldDefinition>(), _repeat(false) {}
+
+		bool repeat() const {return _repeat;}
+		void setRepeat(bool repeat) {_repeat = repeat;}
+
+	private:
+		bool _repeat;
+	};
+
+	class Data : public QVector<QVector<QVariant> >
+	{
+	public:
+		Data() : QVector<QVector<QVariant> >(), _fields(0) {}
+
+		void setFields(const SubFields *fields) {_fields = fields;}
+
+		const QVariant *field(const QByteArray &name, int idx = 0) const
+		{
+			const QVector<QVariant> &v = at(idx);
+
+			for (int i = 0; i < _fields->size(); i++)
+				if (_fields->at(i).tag == name)
+					return &v.at(i);
+
+			return 0;
+		}
+
+	private:
+		const SubFields *_fields;
+	};
+
+	class Field
+	{
+	public:
+		const QByteArray &tag() const {return _tag;}
+		void setTag(const QByteArray &tag) {_tag = tag;}
+		Data &rdata() {return _data;}
+		const Data &data() const {return _data;}
+
+		bool subfield(const char *name, int *val, int idx = 0) const;
+		bool subfield(const char *name, uint *val, int idx = 0) const;
+		bool subfield(const char *name, QByteArray *val, int idx = 0) const;
+
+	private:
+		QByteArray _tag;
+		Data _data;
+	};
+
+	class Record : public QVector<Field>
+	{
+	public:
+		const Field *field(const QByteArray &name) const
+		{
+			for (int i = 0; i < size(); i++)
+				if (at(i).tag() == name)
+					return &at(i);
+			return 0;
+		}
+	};
+
+	bool readDDR(QFile &file);
+	bool readRecord(QFile &file, Record &record);
+
+	const QString &errorString() const {return _errorString;}
+
+private:
+	typedef QMap<QByteArray, SubFields> FieldsMap;
+
+	static bool fieldType(const QString &str, int cnt, FieldType &type,
+	  int &size);
+
+	int readDR(QFile &file, QVector<FieldDefinition> &fields) const;
+	bool readDDA(QFile &file, const FieldDefinition &def, SubFields &fields);
+	bool readUDA(QFile &file, quint64 pos, const FieldDefinition &def,
+	  const SubFields &fields, Data &data) const;
+
+	FieldsMap _map;
+	QString _errorString;
+};
+
+#ifndef QT_NO_DEBUG
+inline QDebug operator<<(QDebug dbg, const ISO8211::FieldDefinition &def)
+{
+	dbg.nospace() << "Field(" << def.tag << ", " << def.size << ")";
+	return dbg.space();
+}
+
+inline QDebug operator<<(QDebug dbg, const ISO8211::SubFieldDefinition &def)
+{
+	dbg.nospace() << "SubField(" << def.tag << ", " << def.type << ", "
+	  << def.size << ")";
+	return dbg.space();
+}
+
+inline QDebug operator<<(QDebug dbg, const ISO8211::Field &field)
+{
+	dbg.nospace() << "Field(" << field.tag() /*<< ", " << field.data()*/ << ")";
+	return dbg.space();
+}
+#endif // QT_NO_DEBUG
+
+}
+
+#endif // ENC_ISO8211_H

src/map/ENC/mapdata.cpp

@@ -0,0 +1,682 @@
+#include <QFile>
+#include "common/util.h"
+#include "objects.h"
+#include "mapdata.h"
+
+using namespace ENC;
+
+#define RCNM_VI 110
+#define RCNM_VC 120
+#define RCNM_VE 130
+#define RCNM_VF 140
+
+#define PRIM_P 1
+#define PRIM_L 2
+#define PRIM_A 3
+
+static void warning(const ISO8211::Field &FRID, uint PRIM)
+{
+	uint RCID = 0xFFFFFFFF;
+	FRID.subfield("RCID", &RCID);
+
+	switch (PRIM) {
+		case PRIM_P:
+			qWarning("%u: invalid point feature", RCID);
+			break;
+		case PRIM_L:
+			qWarning("%u: invalid line feature", RCID);
+			break;
+		case PRIM_A:
+			qWarning("%u: invalid area feature", RCID);
+			break;
+	}
+}
+
+static void rectcBounds(const RectC &rect, double min[2], double max[2])
+{
+	min[0] = rect.left();
+	min[1] = rect.bottom();
+	max[0] = rect.right();
+	max[1] = rect.top();
+}
+
+static bool parseNAME(const ISO8211::Field *f, quint8 *type, quint32 *id,
+  int idx = 0)
+{
+	QByteArray ba(f->data().at(idx).at(0).toByteArray());
+	if (ba.size() != 5)
+		return false;
+
+	*type = (quint8)(*ba.constData());
+	*id = UINT32(ba.constData() + 1);
+
+	return true;
+}
+
+static const ISO8211::Field *SGXD(const ISO8211::Record &r)
+{
+	const ISO8211::Field *f;
+
+	if ((f = r.field("SG2D")))
+		return f;
+	else if ((f = r.field("SG3D")))
+		return f;
+	else
+		return 0;
+}
+
+static bool pointCb(MapData::Point *point, void *context)
+{
+	QList<MapData::Point*> *points = (QList<MapData::Point*>*)context;
+	points->append(point);
+	return true;
+}
+
+static bool lineCb(MapData::Line *line, void *context)
+{
+	QList<MapData::Line*> *lines = (QList<MapData::Line*>*)context;
+	lines->append(line);
+	return true;
+}
+
+static bool polygonCb(MapData::Poly *polygon, void *context)
+{
+	QList<MapData::Poly*> *polygons = (QList<MapData::Poly*>*)context;
+	polygons->append(polygon);
+	return true;
+}
+
+static uint depthLevel(const QVariant &DRVAL1)
+{
+	QString str(DRVAL1.toString());
+	double minDepth = str.isEmpty() ? -1 : str.toDouble();
+
+	if (minDepth < 0)
+		return 0;
+	else if (minDepth < 2)
+		return 1;
+	else if (minDepth < 5)
+		return 2;
+	else if (minDepth < 10)
+		return 3;
+	else if (minDepth < 20)
+		return 4;
+	else if (minDepth < 50)
+		return 5;
+	else
+		return 6;
+}
+
+RectC MapData::Line::bounds() const
+{
+	RectC b;
+
+	for (int i = 0; i < _path.size(); i++)
+		b = b.united(_path.at(i));
+
+	return b;
+}
+
+Coordinates MapData::coordinates(int x, int y) const
+{
+	return Coordinates(x / (double)_COMF, y / (double)_COMF);
+}
+
+Coordinates MapData::point(const ISO8211::Record &r)
+{
+	const ISO8211::Field *f = SGXD(r);
+	if (!f)
+		return Coordinates();
+
+	int y = f->data().at(0).at(0).toInt();
+	int x = f->data().at(0).at(1).toInt();
+
+	return coordinates(x, y);
+}
+
+QVector<MapData::Sounding> MapData::soundings(const ISO8211::Record &r)
+{
+	QVector<Sounding> s;
+	const ISO8211::Field *f = r.field("SG3D");
+	if (!f)
+		return QVector<Sounding>();
+
+	s.reserve(f->data().size());
+	for (int i = 0; i < f->data().size(); i++) {
+		int y = f->data().at(i).at(0).toInt();
+		int x = f->data().at(i).at(1).toInt();
+		int z = f->data().at(i).at(2).toInt();
+		s.append(Sounding(coordinates(x, y), z / (double)_SOMF));
+	}
+
+	return s;
+}
+
+QVector<MapData::Sounding> MapData::soundingGeometry(const ISO8211::Record &r)
+{
+	quint8 type;
+	quint32 id;
+	RecordMapIterator it;
+
+	const ISO8211::Field *FSPT = r.field("FSPT");
+	if (!FSPT || FSPT->data().at(0).size() != 4)
+		return QVector<Sounding>();
+
+	if (!parseNAME(FSPT, &type, &id))
+		return QVector<Sounding>();
+
+	if (type == RCNM_VI)
+		it = _vi.find(id);
+	else if (type == RCNM_VC)
+		it = _vc.find(id);
+	else
+		return QVector<Sounding>();
+	if (it == _ve.constEnd())
+		return QVector<Sounding>();
+
+	const ISO8211::Record &FRID = it.value();
+
+	return soundings(FRID);
+}
+
+Coordinates MapData::pointGeometry(const ISO8211::Record &r)
+{
+	quint8 type;
+	quint32 id;
+	RecordMapIterator it;
+
+	const ISO8211::Field *FSPT = r.field("FSPT");
+	if (!FSPT || FSPT->data().at(0).size() != 4)
+		return Coordinates();
+
+	if (!parseNAME(FSPT, &type, &id))
+		return Coordinates();
+
+	if (type == RCNM_VI)
+		it = _vi.find(id);
+	else if (type == RCNM_VC)
+		it = _vc.find(id);
+	else
+		return Coordinates();
+	if (it == _ve.constEnd())
+		return Coordinates();
+
+	const ISO8211::Record &FRID = it.value();
+
+	return point(FRID);
+}
+
+QVector<Coordinates> MapData::lineGeometry(const ISO8211::Record &r)
+{
+	QVector<Coordinates> path;
+	Coordinates c[2];
+	uint ORNT, MASK;
+	quint8 type;
+	quint32 id;
+
+	const ISO8211::Field *FSPT = r.field("FSPT");
+	if (!FSPT || FSPT->data().at(0).size() != 4)
+		return QVector<Coordinates>();
+
+	for (int i = 0; i < FSPT->data().size(); i++) {
+		if (!parseNAME(FSPT, &type, &id, i) || type != RCNM_VE)
+			return QVector<Coordinates>();
+		ORNT = FSPT->data().at(i).at(1).toUInt();
+		MASK = FSPT->data().at(i).at(3).toUInt();
+		Q_ASSERT(MASK != 1);
+
+		RecordMapIterator it = _ve.find(id);
+		if (it == _ve.constEnd())
+			return QVector<Coordinates>();
+		const ISO8211::Record &FRID = it.value();
+		const ISO8211::Field *VRPT = FRID.field("VRPT");
+		if (!VRPT || VRPT->data().size() != 2)
+			return QVector<Coordinates>();
+
+		for (int j = 0; j < 2; j++) {
+			if (!parseNAME(VRPT, &type, &id, j) || type != RCNM_VC)
+				return QVector<Coordinates>();
+
+			RecordMapIterator jt = _vc.find(id);
+			if (jt == _vc.constEnd())
+				return QVector<Coordinates>();
+			c[j] = point(jt.value());
+			if (c[j].isNull())
+				return QVector<Coordinates>();
+		}
+
+		const ISO8211::Field *vertexes = SGXD(FRID);
+		if (ORNT == 2) {
+			path.append(c[1]);
+			if (vertexes) {
+				for (int j = vertexes->data().size() - 1; j >= 0; j--) {
+					const QVector<QVariant> &cv = vertexes->data().at(j);
+					path.append(coordinates(cv.at(1).toInt(), cv.at(0).toInt()));
+				}
+			}
+			path.append(c[0]);
+		} else {
+			path.append(c[0]);
+			if (vertexes) {
+				for (int j = 0; j < vertexes->data().size(); j++) {
+					const QVector<QVariant> &cv = vertexes->data().at(j);
+					path.append(coordinates(cv.at(1).toInt(), cv.at(0).toInt()));
+				}
+			}
+			path.append(c[1]);
+		}
+	}
+
+	return path;
+}
+
+Polygon MapData::polyGeometry(const ISO8211::Record &r)
+{
+	Polygon path;
+	QVector<Coordinates> v;
+	Coordinates c[2];
+	uint ORNT, USAG, MASK;
+	quint8 type;
+	quint32 id;
+
+	const ISO8211::Field *FSPT = r.field("FSPT");
+	if (!FSPT || FSPT->data().at(0).size() != 4)
+		return Polygon();
+
+	for (int i = 0; i < FSPT->data().size(); i++) {
+		if (!parseNAME(FSPT, &type, &id, i) || type != RCNM_VE)
+			return Polygon();
+		ORNT = FSPT->data().at(i).at(1).toUInt();
+		USAG = FSPT->data().at(i).at(2).toUInt();
+		MASK = FSPT->data().at(i).at(3).toUInt();
+		Q_ASSERT(MASK != 1);
+
+		if (USAG == 2 && path.isEmpty()) {
+			path.append(v);
+			v.clear();
+		}
+
+		RecordMapIterator it = _ve.find(id);
+		if (it == _ve.constEnd())
+			return Polygon();
+		const ISO8211::Record &FRID = it.value();
+		const ISO8211::Field *VRPT = FRID.field("VRPT");
+		if (!VRPT || VRPT->data().size() != 2)
+			return Polygon();
+
+		for (int j = 0; j < 2; j++) {
+			if (!parseNAME(VRPT, &type, &id, j) || type != RCNM_VC)
+				return Polygon();
+
+			RecordMapIterator jt = _vc.find(id);
+			if (jt == _vc.constEnd())
+				return Polygon();
+			c[j] = point(jt.value());
+			if (c[j].isNull())
+				return Polygon();
+		}
+
+		const ISO8211::Field *vertexes = SGXD(FRID);
+		if (ORNT == 2) {
+			v.append(c[1]);
+			if (vertexes) {
+				for (int j = vertexes->data().size() - 1; j >= 0; j--) {
+					const QVector<QVariant> &cv = vertexes->data().at(j);
+					v.append(coordinates(cv.at(1).toInt(), cv.at(0).toInt()));
+				}
+			}
+			v.append(c[0]);
+		} else {
+			v.append(c[0]);
+			if (vertexes) {
+				for (int j = 0; j < vertexes->data().size(); j++) {
+					const QVector<QVariant> &cv = vertexes->data().at(j);
+					v.append(coordinates(cv.at(1).toInt(), cv.at(0).toInt()));
+				}
+			}
+			v.append(c[1]);
+		}
+
+		if (USAG == 2 && v.first() == v.last()) {
+			path.append(v);
+			v.clear();
+		}
+	}
+
+	if (!v.isEmpty())
+		path.append(v);
+
+	return path;
+}
+
+MapData::Attr MapData::pointAttr(const ISO8211::Record &r, uint OBJL)
+{
+	QString label;
+	uint subtype = 0;
+
+	const ISO8211::Field *ATTF = r.field("ATTF");
+	if (!(ATTF && ATTF->data().at(0).size() == 2))
+		return Attr();
+
+	for (int i = 0; i < ATTF->data().size(); i++) {
+		const QVector<QVariant> &av = ATTF->data().at(i);
+		uint key = av.at(0).toUInt();
+
+		if (key == 116)
+			label = av.at(1).toString();
+		if ((OBJL == HRBFAC && key == 30) || (OBJL == LNDMRK && key == 35)
+		  || (OBJL == WRECKS && key == 71))
+			subtype = av.at(1).toString().toUInt();
+	}
+
+	return Attr(subtype, label);
+}
+
+MapData::Attr MapData::lineAttr(const ISO8211::Record &r, uint OBJL)
+{
+	QString label;
+	uint subtype = 0;
+
+	const ISO8211::Field *ATTF = r.field("ATTF");
+	if (!(ATTF && ATTF->data().at(0).size() == 2))
+		return Attr();
+
+	for (int i = 0; i < ATTF->data().size(); i++) {
+		const QVector<QVariant> &av = ATTF->data().at(i);
+		uint key = av.at(0).toUInt();
+
+		if (key == 116)
+			label = av.at(1).toString();
+		if ((OBJL == DEPCNT && key == 174))
+			label = av.at(1).toString();
+	}
+
+	return Attr(subtype, label);
+}
+
+MapData::Attr MapData::polyAttr(const ISO8211::Record &r, uint OBJL)
+{
+	if (OBJL != DEPARE)
+		return Attr();
+
+	const ISO8211::Field *ATTF = r.field("ATTF");
+	if (!(ATTF && ATTF->data().at(0).size() == 2))
+		return Attr();
+
+	for (int i = 0; i < ATTF->data().size(); i++) {
+		const QVector<QVariant> &av = ATTF->data().at(i);
+		if (av.at(0).toUInt() == 87)
+			return Attr(depthLevel(av.at(1)));
+	}
+
+	return Attr();
+}
+
+MapData::Point *MapData::pointObject(const Sounding &s)
+{
+	return new Point(SOUNDG<<16, s.c, QString::number(s.depth));
+}
+
+MapData::Point *MapData::pointObject(const ISO8211::Record &r, uint OBJL)
+{
+	Coordinates c(pointGeometry(r));
+	Attr attr(pointAttr(r, OBJL));
+
+	return (c.isNull() ? 0 : new Point(OBJL<<16|attr.subtype(), c,
+	  attr.label()));
+}
+
+MapData::Line *MapData::lineObject(const ISO8211::Record &r, uint OBJL)
+{
+	QVector<Coordinates> path(lineGeometry(r));
+	Attr attr(lineAttr(r, OBJL));
+
+	return (path.isEmpty() ? 0 : new Line(OBJL<<16|attr.subtype(), path,
+	  attr.label()));
+}
+
+MapData::Poly *MapData::polyObject(const ISO8211::Record &r, uint OBJL)
+{
+	Polygon path(polyGeometry(r));
+	Attr attr(polyAttr(r, OBJL));
+
+	return (path.isEmpty() ? 0 : new Poly(OBJL<<16|attr.subtype(), path));
+}
+
+bool MapData::processRecord(const ISO8211::Record &record)
+{
+	const ISO8211::Field &f = record.at(1);
+	const QByteArray &ba = f.tag();
+
+	if (ba == "VRID") {
+		if (f.data().at(0).size() < 2)
+			return false;
+		int RCNM = f.data().at(0).at(0).toInt();
+		uint RCID = f.data().at(0).at(1).toUInt();
+
+		switch (RCNM) {
+			case RCNM_VI:
+				_vi.insert(RCID, record);
+				break;
+			case RCNM_VC:
+				_vc.insert(RCID, record);
+				break;
+			case RCNM_VE:
+				_ve.insert(RCID, record);
+				break;
+			case RCNM_VF:
+				_vf.insert(RCID, record);
+				break;
+			default:
+				return false;
+		}
+	} else if (ba == "FRID") {
+		_fe.append(record);
+	} else if (ba == "DSID") {
+		QByteArray DSNM;
+
+		if (!f.subfield("DSNM", &DSNM))
+			return false;
+
+		_name = DSNM;
+	} else if (ba == "DSPM") {
+		if (!(f.subfield("COMF", &_COMF) && f.subfield("SOMF", &_SOMF)))
+			return false;
+	}
+
+	return true;
+}
+
+bool MapData::bounds(const ISO8211::Record &record, Rect &rect)
+{
+	bool xok, yok;
+	const ISO8211::Field *f = SGXD(record);
+	if (!f)
+		return false;
+
+	for (int i = 0; i < f->data().size(); i++) {
+		const QVector<QVariant> &c = f->data().at(i);
+		rect.unite(c.at(1).toInt(&xok), c.at(0).toInt(&yok));
+		if (!(xok && yok))
+			return false;
+	}
+
+	return true;
+}
+
+MapData::Rect MapData::bounds(const RecordMap &map)
+{
+	Rect b, r;
+
+	for (RecordMapIterator it = map.constBegin(); it != map.constEnd(); ++it)
+		if (bounds(it.value(), r))
+			b |= r;
+
+	return b;
+}
+
+RectC MapData::bounds() const
+{
+	const RecordMap *maps[] = {&_vi, &_vc, &_ve, &_vf};
+	Rect b;
+
+	for (size_t i = 0; i < ARRAY_SIZE(maps); i++)
+		b |= bounds(*maps[i]);
+
+	return RectC(
+	  Coordinates(b.minX() / (double)_COMF, b.maxY() / (double)_COMF),
+	  Coordinates(b.maxX() / (double)_COMF, b.minY() / (double)_COMF));
+}
+
+MapData::MapData(const QString &path): _valid(false)
+{
+	QFile file(path);
+
+	if (!file.open(QIODevice::ReadOnly)) {
+		_errorString = file.errorString();
+		return;
+	}
+
+	if (!_ddf.readDDR(file)) {
+		_errorString = _ddf.errorString();
+		return;
+	}
+	while (!file.atEnd()) {
+		ISO8211::Record record;
+		if (!_ddf.readRecord(file, record)) {
+			_errorString = _ddf.errorString();
+			return;
+		}
+		if (!processRecord(record))
+			return;
+	}
+
+	_valid = true;
+}
+
+MapData::~MapData()
+{
+	LineTree::Iterator lit;
+	for (_lines.GetFirst(lit); !_lines.IsNull(lit); _lines.GetNext(lit))
+		delete _lines.GetAt(lit);
+
+	PolygonTree::Iterator ait;
+	for (_areas.GetFirst(ait); !_areas.IsNull(ait); _areas.GetNext(ait))
+		delete _areas.GetAt(ait);
+
+	PointTree::Iterator pit;
+	for (_points.GetFirst(pit); !_points.IsNull(pit); _points.GetNext(pit))
+		delete _points.GetAt(pit);
+}
+
+void MapData::load()
+{
+	uint PRIM, OBJL;
+	Poly *poly;
+	Line *line;
+	Point *point;
+	double min[2], max[2];
+
+	for (int i = 0; i < _fe.size(); i++) {
+		const ISO8211::Record &r = _fe.at(i);
+		const ISO8211::Field &f = r.at(1);
+
+		if (f.data().at(0).size() < 5)
+			continue;
+		PRIM = f.data().at(0).at(2).toUInt();
+		OBJL = f.data().at(0).at(4).toUInt();
+
+		switch (PRIM) {
+			case PRIM_P:
+				if (OBJL == SOUNDG) {
+					QVector<Sounding> s(soundingGeometry(r));
+					for (int i = 0; i < s.size(); i++) {
+						point = pointObject(s.at(i));
+						min[0] = point->pos().lon();
+						min[1] = point->pos().lat();
+						max[0] = point->pos().lon();
+						max[1] = point->pos().lat();
+						_points.Insert(min, max, point);
+					}
+				} else {
+					if ((point = pointObject(r, OBJL))) {
+						min[0] = point->pos().lon();
+						min[1] = point->pos().lat();
+						max[0] = point->pos().lon();
+						max[1] = point->pos().lat();
+						_points.Insert(min, max, point);
+					} else
+						warning(f, PRIM);
+				}
+				break;
+			case PRIM_L:
+				if ((line = lineObject(r, OBJL))) {
+					rectcBounds(line->bounds(), min, max);
+					_lines.Insert(min, max, line);
+				} else
+					warning(f, PRIM);
+				break;
+			case PRIM_A:
+				if ((poly = polyObject(r, OBJL))) {
+					rectcBounds(poly->bounds(), min, max);
+					_areas.Insert(min, max, poly);
+				} else
+					warning(f, PRIM);
+				break;
+		}
+	}
+}
+
+void MapData::clear()
+{
+	LineTree::Iterator lit;
+	for (_lines.GetFirst(lit); !_lines.IsNull(lit); _lines.GetNext(lit))
+		delete _lines.GetAt(lit);
+	_lines.RemoveAll();
+
+	PolygonTree::Iterator ait;
+	for (_areas.GetFirst(ait); !_areas.IsNull(ait); _areas.GetNext(ait))
+		delete _areas.GetAt(ait);
+	_areas.RemoveAll();
+
+	PointTree::Iterator pit;
+	for (_points.GetFirst(pit); !_points.IsNull(pit); _points.GetNext(pit))
+		delete _points.GetAt(pit);
+	_points.RemoveAll();
+}
+
+void MapData::points(const RectC &rect, QList<Point*> *points)
+{
+	double min[2], max[2];
+
+	min[0] = rect.left();
+	min[1] = rect.bottom();
+	max[0] = rect.right();
+	max[1] = rect.top();
+
+	_points.Search(min, max, pointCb, points);
+}
+
+void MapData::lines(const RectC &rect, QList<Line*> *lines)
+{
+	double min[2], max[2];
+
+	min[0] = rect.left();
+	min[1] = rect.bottom();
+	max[0] = rect.right();
+	max[1] = rect.top();
+
+	_lines.Search(min, max, lineCb, lines);
+}
+
+void MapData::polygons(const RectC &rect, QList<Poly*> *polygons)
+{
+	double min[2], max[2];
+
+	min[0] = rect.left();
+	min[1] = rect.bottom();
+	max[0] = rect.right();
+	max[1] = rect.top();
+
+	_areas.Search(min, max, polygonCb, polygons);
+}

src/map/ENC/mapdata.h

@@ -0,0 +1,183 @@
+#ifndef ENC_MAPDATA_H
+#define ENC_MAPDATA_H
+
+#include <climits>
+#include <QPainterPath>
+#include "common/rectc.h"
+#include "common/rtree.h"
+#include "common/polygon.h"
+#include "iso8211.h"
+
+namespace ENC {
+
+class MapData
+{
+public:
+	class Poly {
+	public:
+		Poly(uint type, const Polygon &path)
+		  : _type(type), _path(path) {}
+
+		RectC bounds() const {return _path.boundingRect();}
+		const Polygon &path() const {return _path;}
+		uint type() const {return _type;}
+
+	private:
+		uint _type;
+		Polygon _path;
+	};
+
+	class Line {
+	public:
+		Line(uint type, const QVector<Coordinates> &path, const QString &label)
+		  : _type(type), _path(path), _label(label) {}
+
+		RectC bounds() const;
+		const QVector<Coordinates> &path() const {return _path;}
+		uint type() const {return _type;}
+		const QString &label() const {return _label;}
+
+	private:
+		uint _type;
+		QVector<Coordinates> _path;
+		QString _label;
+	};
+
+	class Point {
+	public:
+		Point(uint type, const Coordinates &c, const QString &label)
+		  : _type(type), _pos(c), _label(label)
+		{
+			uint hash = (uint)qHash(QPair<double,double>(c.lon(), c.lat()));
+			_id = ((quint64)type)<<32 | hash;
+		}
+
+		const Coordinates &pos() const {return _pos;}
+		uint type() const {return _type;}
+		const QString &label() const {return _label;}
+
+		bool operator<(const Point &other) const
+		  {return _id < other._id;}
+
+	private:
+		uint _type;
+		Coordinates _pos;
+		QString _label;
+		quint64 _id;
+	};
+
+	MapData(const QString &path);
+	~MapData();
+
+	const QString &name() const {return _name;}
+	RectC bounds() const;
+
+	void polygons(const RectC &rect, QList<Poly*> *polygons);
+	void lines(const RectC &rect, QList<Line*> *lines);
+	void points(const RectC &rect, QList<Point*> *points);
+
+	void load();
+	void clear();
+
+	bool isValid() const {return _valid;}
+	QString errorString() const {return _errorString;}
+
+private:
+	class Rect {
+	public:
+		Rect()
+		  : _minX(INT_MAX), _maxX(INT_MIN), _minY(INT_MAX), _maxY(INT_MIN) {}
+		Rect(int minX, int maxX, int minY, int maxY)
+		  : _minX(minX), _maxX(maxX), _minY(minY), _maxY(maxY) {}
+
+		int minX() const {return _minX;}
+		int maxX() const {return _maxX;}
+		int minY() const {return _minY;}
+		int maxY() const {return _maxY;}
+
+		void unite(int x, int y) {
+			if (x < _minX)
+				_minX = x;
+			if (x > _maxX)
+				_maxX = x;
+			if (y < _minY)
+				_minY = y;
+			if (y > _maxY)
+				_maxY = y;
+		}
+
+		Rect &operator|=(const Rect &r) {*this = *this | r; return *this;}
+		Rect operator|(const Rect &r) const
+		{
+			return Rect(qMin(_minX, r._minX), qMax(_maxX, r._maxX),
+			  qMin(_minY, r._minY), qMax(_maxY, r._maxY));
+		}
+
+	private:
+		int _minX, _maxX, _minY, _maxY;
+	};
+
+	class Attr {
+	public:
+		Attr() : _subtype(0) {}
+		Attr(uint subtype, const QString &label = QString())
+			: _subtype(subtype), _label(label) {}
+
+		unsigned subtype() const {return _subtype;}
+		const QString &label() const {return _label;}
+
+	private:
+		unsigned _subtype;
+		QString _label;
+	};
+
+	struct Sounding {
+		Sounding() : depth(NAN) {}
+		Sounding(const Coordinates &c, double depth) : c(c), depth(depth) {}
+
+		Coordinates c;
+		double depth;
+	};
+
+	typedef QMap<uint, ISO8211::Record> RecordMap;
+	typedef QMap<uint, ISO8211::Record>::const_iterator RecordMapIterator;
+	typedef RTree<Poly*, double, 2> PolygonTree;
+	typedef RTree<Line*, double, 2> LineTree;
+	typedef RTree<Point*, double, 2> PointTree;
+
+	bool processRecord(const ISO8211::Record &record);
+	Attr pointAttr(const ISO8211::Record &r, uint OBJL);
+	Attr lineAttr(const ISO8211::Record &r, uint OBJL);
+	Attr polyAttr(const ISO8211::Record &r, uint OBJL);
+	QVector<Sounding> soundingGeometry(const ISO8211::Record &r);
+	Coordinates pointGeometry(const ISO8211::Record &r);
+	QVector<Coordinates> lineGeometry(const ISO8211::Record &r);
+	Polygon polyGeometry(const ISO8211::Record &r);
+	Point *pointObject(const Sounding &s);
+	Point *pointObject(const ISO8211::Record &r, uint OBJL);
+	Line *lineObject(const ISO8211::Record &r, uint OBJL);
+	Poly *polyObject(const ISO8211::Record &r, uint OBJL);
+	Coordinates coordinates(int x, int y) const;
+	Coordinates point(const ISO8211::Record &r);
+	QVector<Sounding> soundings(const ISO8211::Record &r);
+
+	static bool bounds(const ISO8211::Record &record, Rect &rect);
+	static Rect bounds(const RecordMap &map);
+
+	QString _name;
+	RecordMap _vi, _vc, _ve, _vf;
+	QVector<ISO8211::Record> _fe;
+	uint _COMF, _SOMF;
+	ISO8211 _ddf;
+
+	PolygonTree _areas;
+	LineTree _lines;
+	PointTree _points;
+
+	bool _valid;
+	QString _errorString;
+};
+
+}
+
+#endif // ENC_MAPDATA_H

src/map/ENC/objects.h

@@ -0,0 +1,47 @@
+#ifndef ENC_OBJECTS_H
+#define ENC_OBJECTS_H
+
+#define AIRARE 2
+#define ACHBRT 3
+#define ACHARE 4
+#define BCNCAR 5
+#define BCNISD 6
+#define BCNLAT 7
+#define BCNSAW 8
+#define BCNSPP 9
+#define BRIDGE 11
+#define BUISGL 12
+#define BUAARE 13
+#define BOYCAR 14
+#define BOYINB 15
+#define BOYISD 16
+#define BOYLAT 17
+#define BOYSAW 18
+#define BOYSPP 19
+#define CBLOHD 21
+#define CBLSUB 22
+#define COALNE 30
+#define DEPARE 42
+#define DEPCNT 43
+#define DMPGRD 48
+#define DYKCON 49
+#define FAIRWY 51
+#define HRBFAC 64
+#define LAKARE 69
+#define LNDARE 71
+#define LNDELV 72
+#define LNDMRK 74
+#define LIGHTS 75
+#define NAVLNE 85
+#define OBSTRN 86
+#define PILPNT 90
+#define PIPSOL 94
+#define PONTON 95
+#define RIVERS 114
+#define SLCONS 122
+#define SOUNDG 129
+#define UWTROC 153
+#define WRECKS 159
+#define M_COVR 302
+
+#endif // ENC_OBJECTS_H

src/map/ENC/rastertile.cpp

@@ -0,0 +1,210 @@
+#include <QPainter>
+#include "map/bitmapline.h"
+#include "map/textpointitem.h"
+#include "map/textpathitem.h"
+#include "style.h"
+#include "rastertile.h"
+
+using namespace ENC;
+
+#define ICON_PADDING 2
+
+static const QColor haloColor(Qt::white);
+
+static struct {
+	bool operator()(MapData::Point* a, MapData::Point* b) const
+	  {return *a < *b;}
+} pointLess;
+
+static QFont pixelSizeFont(int pixelSize)
+{
+	QFont f;
+	f.setPixelSize(pixelSize);
+	return f;
+}
+
+static QFont *font(Style::FontSize size)
+{
+	/* The fonts must be initialized on first usage (after the QGuiApplication
+	   instance is created) */
+	static QFont large = pixelSizeFont(16);
+	static QFont normal = pixelSizeFont(12);
+	static QFont small = pixelSizeFont(10);
+
+	switch (size) {
+		case Style::None:
+			return 0;
+		case Style::Large:
+			return &large;
+		case Style::Small:
+			return &small;
+		default:
+			return &normal;
+	}
+}
+
+static const Style& style()
+{
+	static Style s;
+	return s;
+}
+
+QPainterPath RasterTile::painterPath(const Polygon &polygon) const
+{
+	QPainterPath path;
+
+	for (int i = 0; i < polygon.size(); i++) {
+		const QVector<Coordinates> &subpath = polygon.at(i);
+
+		path.moveTo(ll2xy(subpath.first()));
+		for (int j = 1; j < subpath.size(); j++)
+			path.lineTo(ll2xy(subpath.at(j)));
+	}
+
+	return path;
+}
+
+QPolygonF RasterTile::polyline(const QVector<Coordinates> &path) const
+{
+	QPolygonF polygon;
+	polygon.reserve(path.size());
+
+	for (int i = 0; i < path.size(); i++)
+		polygon.append(ll2xy(path.at(i)));
+
+	return polygon;
+}
+
+void RasterTile::drawPolygons(QPainter *painter)
+{
+	const Style &s = style();
+
+	for (int n = 0; n < s.drawOrder().size(); n++) {
+		for (int i = 0; i < _polygons.size(); i++) {
+			const MapData::Poly *poly = _polygons.at(i);
+			if (poly->type() != s.drawOrder().at(n))
+				continue;
+			const Style::Polygon &style = s.polygon(poly->type());
+
+			painter->setPen(style.pen());
+			painter->setBrush(style.brush());
+			painter->drawPath(painterPath(poly->path()));
+		}
+	}
+}
+
+void RasterTile::drawLines(QPainter *painter)
+{
+	const Style &s = style();
+
+	painter->setBrush(Qt::NoBrush);
+
+	for (int i = 0; i < _lines.size(); i++) {
+		const MapData::Line *line = _lines.at(i);
+		const Style::Line &style = s.line(line->type());
+
+		if (style.background() == Qt::NoPen)
+			continue;
+
+		painter->setPen(style.background());
+		painter->drawPolyline(polyline(line->path()));
+	}
+
+	for (int i = 0; i < _lines.size(); i++) {
+		const MapData::Line *line = _lines.at(i);
+		const Style::Line &style = s.line(line->type());
+
+		if (!style.img().isNull()) {
+			BitmapLine::draw(painter, polyline(line->path()), style.img());
+		} else if (style.foreground() != Qt::NoPen) {
+			painter->setPen(style.foreground());
+			painter->drawPolyline(polyline(line->path()));
+		}
+	}
+}
+
+void RasterTile::drawTextItems(QPainter *painter,
+  const QList<TextItem*> &textItems)
+{
+	for (int i = 0; i < textItems.size(); i++)
+		textItems.at(i)->paint(painter);
+}
+
+void RasterTile::processPoints(QList<TextItem*> &textItems)
+{
+	const Style &s = style();
+
+	std::sort(_points.begin(), _points.end(), pointLess);
+
+	for (int i = 0; i < _points.size(); i++) {
+		const MapData::Point *point = _points.at(i);
+		const Style::Point &style = s.point(point->type());
+
+		const QString *label = point->label().isEmpty() ? 0 : &(point->label());
+		const QImage *img = style.img().isNull() ? 0 : &style.img();
+		const QFont *fnt = font(style.textFontSize());
+		const QColor *color = &style.textColor();
+
+		if ((!label || !fnt) && !img)
+			continue;
+
+		TextPointItem *item = new TextPointItem(ll2xy(point->pos()).toPoint(),
+		  label, fnt, img, color, &haloColor, 0, ICON_PADDING);
+		if (item->isValid() && !item->collides(textItems))
+			textItems.append(item);
+		else
+			delete item;
+	}
+}
+
+void RasterTile::processLines(QList<TextItem*> &textItems)
+{
+	const Style &s = style();
+
+	for (int i = 0; i < _lines.size(); i++) {
+		const MapData::Line *line = _lines.at(i);
+		const Style::Line &style = s.line(line->type());
+
+		if (style.img().isNull() && style.foreground() == Qt::NoPen)
+			continue;
+		if (line->label().isEmpty() || style.textFontSize() == Style::None)
+			continue;
+
+		const QFont *fnt = font(style.textFontSize());
+		const QColor *color = &style.textColor();
+
+		TextPathItem *item = new TextPathItem(polyline(line->path()),
+		  &line->label(), _rect, fnt, color, 0);
+		if (item->isValid() && !item->collides(textItems))
+			textItems.append(item);
+		else
+			delete item;
+	}
+}
+
+void RasterTile::render()
+{
+	QList<TextItem*> textItems;
+
+	_pixmap.setDevicePixelRatio(_ratio);
+	_pixmap.fill(Qt::transparent);
+
+	processPoints(textItems);
+	processLines(textItems);
+
+	QPainter painter(&_pixmap);
+	painter.setRenderHint(QPainter::SmoothPixmapTransform);
+	painter.setRenderHint(QPainter::Antialiasing);
+	painter.translate(-_rect.x(), -_rect.y());
+
+	drawPolygons(&painter);
+	drawLines(&painter);
+
+	drawTextItems(&painter, textItems);
+
+	qDeleteAll(textItems);
+
+	//painter.setPen(Qt::red);
+	//painter.setBrush(Qt::NoBrush);
+	//painter.drawRect(QRect(_rect.topLeft(), _pixmap.size()));
+}

src/map/ENC/rastertile.h

@@ -0,0 +1,55 @@
+#ifndef ENC_RASTERTILE_H
+#define ENC_RASTERTILE_H
+
+#include <QPixmap>
+#include "map/projection.h"
+#include "map/transform.h"
+#include "mapdata.h"
+
+class TextItem;
+
+namespace ENC {
+
+class RasterTile
+{
+public:
+	RasterTile(const Projection &proj, const Transform &transform, int zoom,
+	  const QRect &rect, qreal ratio, const QList<MapData::Line*> &lines,
+	  const QList<MapData::Poly*> &polygons, const QList<MapData::Point*> &points)
+	  : _proj(proj), _transform(transform), _zoom(zoom), _rect(rect),
+	  _ratio(ratio), _pixmap(rect.width() * ratio, rect.height() * ratio),
+	  _lines(lines), _polygons(polygons), _points(points) {}
+
+	int zoom() const {return _zoom;}
+	QPoint xy() const {return _rect.topLeft();}
+	const QPixmap &pixmap() const {return _pixmap;}
+
+	void render();
+
+private:
+	QPointF ll2xy(const Coordinates &c) const
+	  {return _transform.proj2img(_proj.ll2xy(c));}
+	QPainterPath painterPath(const Polygon &polygon) const;
+	QPolygonF polyline(const QVector<Coordinates> &path) const;
+	void processPoints(QList<TextItem*> &textItems);
+	void processLines(QList<TextItem*> &textItems);
+	void drawBitmapPath(QPainter *painter, const QImage &img,
+	  const Polygon &polygon);
+	void drawPolygons(QPainter *painter);
+	void drawLines(QPainter *painter);
+	void drawTextItems(QPainter *painter, const QList<TextItem*> &textItems);
+
+	Projection _proj;
+	Transform _transform;
+	int _zoom;
+	QRect _rect;
+	qreal _ratio;
+	QPixmap _pixmap;
+	QList<MapData::Line*> _lines;
+	QList<MapData::Poly*> _polygons;
+	QList<MapData::Point*> _points;
+};
+
+}
+
+#endif // ENC_RASTERTILE_H

src/map/ENC/style.cpp

@@ -0,0 +1,125 @@
+#include "objects.h"
+#include "style.h"
+
+using namespace ENC;
+
+#define TYPE(t) ((t)<<16)
+#define SUBTYPE(t, s) (((t)<<16)|(s))
+
+void Style::defaultPolygonStyle()
+{
+	_polygons[TYPE(M_COVR)] = Polygon(QBrush("#ffffff"));
+	_polygons[TYPE(LNDARE)] = Polygon(QBrush("#e8e064"));
+	_polygons[TYPE(BUISGL)] = Polygon(QBrush("#d98b21"));
+	_polygons[TYPE(BRIDGE)] = Polygon(QBrush("#a58140"));
+	_polygons[SUBTYPE(DEPARE, 0)] = Polygon(QBrush("#98c064"));
+	_polygons[SUBTYPE(DEPARE, 1)] = Polygon(QBrush("#a0a0ff"));
+	_polygons[SUBTYPE(DEPARE, 2)] = Polygon(QBrush("#b0b0ff"));
+	_polygons[SUBTYPE(DEPARE, 3)] = Polygon(QBrush("#c0c0ff"));
+	_polygons[SUBTYPE(DEPARE, 4)] = Polygon(QBrush("#c0d0ff"));
+	_polygons[SUBTYPE(DEPARE, 5)] = Polygon(QBrush("#c0e0ff"));
+	_polygons[SUBTYPE(DEPARE, 6)] = Polygon(QBrush("#ffffff"));
+	_polygons[TYPE(DMPGRD)] = Polygon(QBrush(QColor("#a3a3a3"), Qt::Dense3Pattern));
+	_polygons[TYPE(FAIRWY)] = Polygon(QBrush("#fcb4fc"));
+	_polygons[TYPE(OBSTRN)] = Polygon(Qt::NoBrush, QPen(QColor("#000000"), 1.5,
+	  Qt::DotLine));
+	_polygons[TYPE(PONTON)] = Polygon(QBrush("#333333"));
+	_polygons[TYPE(SLCONS)] = Polygon(Qt::NoBrush, QPen(QColor("#333333"), 1.5,
+	  Qt::DashLine));
+	_polygons[TYPE(ACHARE)] = Polygon(Qt::NoBrush, QPen(QColor("#e728e7"), 1,
+	  Qt::DashDotLine));
+	_polygons[TYPE(LAKARE)] = Polygon(QBrush("#9fc4e1"),
+	  QPen(QColor("#000000"), 1));
+	_polygons[TYPE(RIVERS)] = Polygon(QBrush("#9fc4e1"));
+	_polygons[TYPE(AIRARE)] = Polygon(QBrush("#333333"));
+
+	_drawOrder
+	  << TYPE(M_COVR) << TYPE(LNDARE) << TYPE(BUISGL) << SUBTYPE(DEPARE, 0)
+	  << SUBTYPE(DEPARE, 1) << SUBTYPE(DEPARE, 2) << SUBTYPE(DEPARE, 3)
+	  << SUBTYPE(DEPARE, 4) << SUBTYPE(DEPARE, 5) << SUBTYPE(DEPARE, 6)
+	  << TYPE(LAKARE) << TYPE(RIVERS) << TYPE(FAIRWY) << TYPE(AIRARE)
+	  << TYPE(BRIDGE) << TYPE(SLCONS) << TYPE(PONTON) << TYPE(DMPGRD)
+	  << TYPE(OBSTRN) << TYPE(ACHARE);
+}
+
+void Style::defaultLineStyle()
+{
+	_lines[TYPE(DEPCNT)] = Line(QPen(QColor("#659aef"), 1, Qt::SolidLine));
+	_lines[TYPE(DEPCNT)].setTextColor(QColor("#558adf"));
+	_lines[TYPE(DEPCNT)].setTextFontSize(Small);
+	_lines[TYPE(CBLOHD)] = Line(QImage(":/IMG/cable-line.png"));
+	_lines[TYPE(BRIDGE)] = Line(QPen(QColor("#a58140"), 3, Qt::SolidLine));
+	_lines[TYPE(CBLSUB)] = Line(QImage(":/IMG/cable.png"));
+	_lines[TYPE(CBLSUB)].setTextFontSize(Small);
+	_lines[TYPE(PIPSOL)] = Line(QImage(":/IMG/pipeline.png"));
+	_lines[TYPE(NAVLNE)] = Line(QPen(QColor("#eb49eb"), 1, Qt::DashLine));
+	_lines[TYPE(COALNE)] = Line(QPen(QColor("#000000"), 1, Qt::SolidLine));
+	_lines[TYPE(SLCONS)] = Line(QPen(QColor("#000000"), 2, Qt::SolidLine));
+	_lines[TYPE(PONTON)] = Line(QPen(QColor("#333333"), 1, Qt::SolidLine));
+	_lines[TYPE(DYKCON)] = Line(QPen(QColor("#333333"), 2, Qt::SolidLine));
+	_lines[TYPE(RIVERS)] = Line(QPen(QColor("#000000"), 1, Qt::SolidLine));
+}
+
+void Style::defaultPointStyle()
+{
+	_points[TYPE(BUAARE)].setTextFontSize(Large);
+	_points[TYPE(SOUNDG)].setTextFontSize(Small);
+	_points[TYPE(LIGHTS)] = Point(QImage(":/IMG/light-major.png"), Small);
+	_points[TYPE(BOYCAR)] = Point(QImage(":/IMG/buoy.png"), Small);
+	_points[TYPE(BOYINB)] = Point(QImage(":/IMG/buoy.png"), Small);
+	_points[TYPE(BOYISD)] = Point(QImage(":/IMG/buoy.png"), Small);
+	_points[TYPE(BOYLAT)] = Point(QImage(":/IMG/buoy.png"), Small);
+	_points[TYPE(BOYSAW)] = Point(QImage(":/IMG/buoy.png"), Small);
+	_points[TYPE(BOYSPP)] = Point(QImage(":/IMG/buoy.png"), Small);
+	_points[TYPE(BCNISD)] = Point(QImage(":/IMG/beacon.png"), Small);
+	_points[TYPE(BCNLAT)] = Point(QImage(":/IMG/beacon.png"), Small);
+	_points[TYPE(BCNSAW)] = Point(QImage(":/IMG/beacon.png"), Small);
+	_points[TYPE(BCNSPP)] = Point(QImage(":/IMG/beacon.png"), Small);
+	_points[SUBTYPE(LNDMRK, 3)] = Point(QImage(":/IMG/chimney.png"));
+	_points[SUBTYPE(LNDMRK, 20)] = Point(QImage(":/IMG/church.png"));
+	_points[SUBTYPE(LNDMRK, 17)] = Point(QImage(":/IMG/tower.png"));
+	_points[TYPE(LNDELV)] = Point(QImage(":/IMG/triangulation-point.png"));
+	_points[TYPE(OBSTRN)] = Point(QImage(":/IMG/obstruction.png"), Small);
+	_points[TYPE(WRECKS)] = Point(QImage(":/IMG/wreck.png"), Small);
+	_points[SUBTYPE(WRECKS, 1)] = Point(QImage(":/IMG/wreck.png"), Small);
+	_points[SUBTYPE(WRECKS, 2)] = Point(QImage(":/IMG/wreck-dangerous.png"),
+	  Small);
+	_points[SUBTYPE(WRECKS, 3)] = Point(QImage(":/IMG/wreck.png"), Small);
+	_points[SUBTYPE(WRECKS, 4)] = Point(QImage(":/IMG/wreck.png"), Small);
+	_points[SUBTYPE(WRECKS, 5)] = Point(QImage(":/IMG/wreck-exposed.png"));
+	_points[TYPE(UWTROC)] = Point(QImage(":/IMG/rock-dangerous.png"), Small);
+	_points[SUBTYPE(HRBFAC, 5)] = Point(QImage(":/IMG/yacht-harbor.png"));
+	_points[TYPE(PILPNT)] = Point(QImage(":/IMG/pile.png"), Small);
+	_points[TYPE(ACHBRT)] = Point(QImage(":/IMG/anchorage.png"));
+}
+
+Style::Style()
+{
+	defaultPolygonStyle();
+	defaultLineStyle();
+	defaultPointStyle();
+}
+
+const Style::Line &Style::line(quint32 type) const
+{
+	static Line null;
+
+	QMap<uint, Line>::const_iterator it = _lines.find(type);
+	return (it == _lines.constEnd()) ? null : *it;
+}
+
+const Style::Polygon &Style::polygon(quint32 type) const
+{
+	static Polygon null;
+
+	QMap<uint, Polygon>::const_iterator it = _polygons.find(type);
+	return (it == _polygons.constEnd()) ? null : *it;
+}
+
+const Style::Point &Style::point(quint32 type) const
+{
+	static Point null;
+
+	QMap<uint, Point>::const_iterator it = _points.find(type);
+	return (it == _points.constEnd()) ? null : *it;
+}

src/map/ENC/style.h

@@ -0,0 +1,104 @@
+#ifndef ENC_STYLE_H
+#define ENC_STYLE_H
+
+#include <QPen>
+#include <QBrush>
+#include <QMap>
+
+namespace ENC {
+
+class Style
+{
+public:
+	enum FontSize {
+		None,
+		Small,
+		Normal,
+		Large,
+	};
+
+	class Polygon {
+	public:
+		Polygon() : _brush(Qt::NoBrush), _pen(Qt::NoPen) {}
+		Polygon(const QBrush &brush, const QPen &pen = Qt::NoPen)
+			: _brush(brush)
+		{
+			_pen = (pen == Qt::NoPen) ? QPen(_brush, 0) : pen;
+		}
+
+		const QPen &pen() const {return _pen;}
+		const QBrush &brush() const {return _brush;}
+
+	private:
+		QBrush _brush;
+		QPen _pen;
+	};
+
+	class Line {
+	public:
+		Line() : _foreground(Qt::NoPen), _background(Qt::NoPen),
+		  _textFontSize(None) {}
+		Line(const QPen &foreground, const QPen &background = Qt::NoPen)
+		  : _foreground(foreground), _background(background),
+		  _textFontSize(None) {}
+		Line(const QImage &img)
+		  : _foreground(Qt::NoPen), _background(Qt::NoPen),
+		  _textFontSize(None), _img(img.convertToFormat(
+		  QImage::Format_ARGB32_Premultiplied)) {}
+
+		void setTextColor(const QColor &color) {_textColor = color;}
+		void setTextFontSize(FontSize size) {_textFontSize = size;}
+
+		const QPen &foreground() const {return _foreground;}
+		const QPen &background() const {return _background;}
+		const QColor &textColor() const {return _textColor;}
+		FontSize textFontSize() const {return _textFontSize;}
+		const QImage &img() const {return _img;}
+
+	private:
+		QPen _foreground, _background;
+		QColor _textColor;
+		FontSize _textFontSize;
+		QImage _img;
+	};
+
+	class Point {
+	public:
+		Point() : _textColor(Qt::black), _textFontSize(Normal) {}
+		Point(const QImage &img, FontSize fontSize = Normal)
+		  : _textColor(Qt::black), _textFontSize(fontSize), _img(img) {}
+
+		void setTextColor(const QColor &color) {_textColor = color;}
+		void setTextFontSize(FontSize size) {_textFontSize = size;}
+
+		const QColor &textColor() const {return _textColor;}
+		FontSize textFontSize() const {return _textFontSize;}
+		const QImage &img() const {return _img;}
+
+	private:
+		QColor _textColor;
+		FontSize _textFontSize;
+		QImage _img;
+	};
+
+	Style();
+
+	const Line &line(uint type) const;
+	const Polygon &polygon(uint type) const;
+	const Point &point(quint32 type) const;
+	const QVector<uint> &drawOrder() const {return _drawOrder;}
+
+private:
+	void defaultPolygonStyle();
+	void defaultLineStyle();
+	void defaultPointStyle();
+
+	QMap<uint, Line> _lines;
+	QMap<uint, Polygon> _polygons;
+	QMap<uint, Point> _points;
+	QVector<uint> _drawOrder;
+};
+
+}
+
+#endif // ENC_STYLE_H

src/map/IMG/nodfile.cpp

@@ -1,11 +1,10 @@
+#include "common/util.h"
 #include "bitstream.h"
 #include "nodfile.h"
 
 using namespace Garmin;
 using namespace IMG;
 
-#define ARRAY_SIZE(array) \
-  (sizeof(array) / sizeof(array[0]))
 #define DELTA(val, llBits, maxBits) \
   (((int)((val) << (32 - (llBits))) >> (32 - (llBits))) << (32 - (maxBits)))
 

src/map/IMG/rastertile.cpp

@@ -4,7 +4,7 @@
 #include "map/imgmap.h"
 #include "map/textpathitem.h"
 #include "map/textpointitem.h"
-#include "bitmapline.h"
+#include "map/bitmapline.h"
 #include "style.h"
 #include "lblfile.h"
 #include "rastertile.h"
@@ -357,7 +357,7 @@ void RasterTile::processStreetNames(QList<TextItem*> &textItems)
 		  ? &style.textColor() : 0;
 
 		TextPathItem *item = new TextPathItem(poly.points,
-		  &poly.label.text(), _rect, fnt, color);
+		  &poly.label.text(), _rect, fnt, color, &haloColor);
 		if (item->isValid() && !item->collides(textItems))
 			textItems.append(item);
 		else

src/map/IMG/style.h

@@ -37,7 +37,6 @@ public:
 	private:
 		QBrush _brush;
 		QPen _pen;
-		QColor _textColor;
 	};
 
 	class Line {

src/map/encmap.cpp

@@ -0,0 +1,186 @@
+#include <QPainter>
+#include <QPixmapCache>
+#include <QtConcurrent>
+#include "common/range.h"
+#include "common/wgs84.h"
+#include "ENC/rastertile.h"
+#include "rectd.h"
+#include "pcs.h"
+#include "encmap.h"
+
+#define TILE_SIZE 512
+#define TEXT_EXTENT 160
+
+using namespace ENC;
+
+static Range ZOOMS = Range(0, 20);
+
+ENCMap::ENCMap(const QString &fileName, QObject *parent)
+  : Map(fileName, parent), _data(fileName), _projection(PCS::pcs(3857)),
+  _tileRatio(1.0), _zoom(0)
+{
+	if (_data.isValid()) {
+		_llBounds = _data.bounds();
+		updateTransform();
+	}
+}
+
+void ENCMap::load()
+{
+	_data.load();
+}
+
+void ENCMap::unload()
+{
+	_data.clear();
+}
+
+int ENCMap::zoomFit(const QSize &size, const RectC &rect)
+{
+	if (rect.isValid()) {
+		RectD pr(rect, _projection, 10);
+
+		_zoom = ZOOMS.min();
+		for (int i = ZOOMS.min() + 1; i <= ZOOMS.max(); i++) {
+			Transform t(transform(i));
+			QRectF r(t.proj2img(pr.topLeft()), t.proj2img(pr.bottomRight()));
+			if (size.width() < r.width() || size.height() < r.height())
+				break;
+			_zoom = i;
+		}
+	} else
+		_zoom = ZOOMS.max();
+
+	updateTransform();
+
+	return _zoom;
+}
+
+int ENCMap::zoomIn()
+{
+	_zoom = qMin(_zoom + 1, ZOOMS.max());
+	updateTransform();
+	return _zoom;
+}
+
+int ENCMap::zoomOut()
+{
+	_zoom = qMax(_zoom - 1, ZOOMS.min());
+	updateTransform();
+	return _zoom;
+}
+
+void ENCMap::setZoom(int zoom)
+{
+	_zoom = zoom;
+	updateTransform();
+}
+
+Transform ENCMap::transform(int zoom) const
+{
+	int z = zoom + Util::log2i(TILE_SIZE);
+
+	double scale = _projection.isGeographic()
+	  ? 360.0 / (1<<z) : (2.0 * M_PI * WGS84_RADIUS) / (1<<z);
+	PointD topLeft(_projection.ll2xy(_llBounds.topLeft()));
+	return Transform(ReferencePoint(PointD(0, 0), topLeft),
+	  PointD(scale, scale));
+}
+
+void ENCMap::updateTransform()
+{
+	_transform = transform(_zoom);
+
+	RectD prect(_llBounds, _projection);
+	_bounds = QRectF(_transform.proj2img(prect.topLeft()),
+	  _transform.proj2img(prect.bottomRight()));
+}
+
+QString ENCMap::key(int zoom, const QPoint &xy) const
+{
+	return path() + "-" + QString::number(zoom) + "_"
+	  + QString::number(xy.x()) + "_" + QString::number(xy.y());
+}
+
+void ENCMap::draw(QPainter *painter, const QRectF &rect, Flags flags)
+{
+	Q_UNUSED(flags);
+	QPointF tl(floor(rect.left() / TILE_SIZE) * TILE_SIZE,
+	  floor(rect.top() / TILE_SIZE) * TILE_SIZE);
+	QSizeF s(rect.right() - tl.x(), rect.bottom() - tl.y());
+	int width = ceil(s.width() / TILE_SIZE);
+	int height = ceil(s.height() / TILE_SIZE);
+
+	QList<RasterTile> tiles;
+
+	for (int i = 0; i < width; i++) {
+		for (int j = 0; j < height; j++) {
+			QPoint ttl(tl.x() + i * TILE_SIZE, tl.y() + j * TILE_SIZE);
+
+			QPixmap pm;
+			if (QPixmapCache::find(key(_zoom, ttl), &pm))
+				painter->drawPixmap(ttl, pm);
+			else {
+				QList<MapData::Poly*> polygons;
+				QList<MapData::Line*> lines;
+				QList<MapData::Point*> points;
+
+				QRectF polyRect(ttl, QPointF(ttl.x() + TILE_SIZE,
+				  ttl.y() + TILE_SIZE));
+				polyRect &= _bounds;
+				RectD polyRectD(_transform.img2proj(polyRect.topLeft()),
+				  _transform.img2proj(polyRect.bottomRight()));
+				RectC polyRectC(polyRectD.toRectC(_projection, 20));
+				_data.lines(polyRectC, &lines);
+				_data.polygons(polyRectC, &polygons);
+
+				QRectF pointRect(QPointF(ttl.x() - TEXT_EXTENT,
+				  ttl.y() - TEXT_EXTENT), QPointF(ttl.x() + TILE_SIZE
+				  + TEXT_EXTENT, ttl.y() + TILE_SIZE + TEXT_EXTENT));
+				pointRect &= _bounds;
+				RectD pointRectD(_transform.img2proj(pointRect.topLeft()),
+				  _transform.img2proj(pointRect.bottomRight()));
+				_data.points(pointRectD.toRectC(_projection, 20), &points);
+
+				tiles.append(RasterTile(_projection, _transform, _zoom,
+				  QRect(ttl, QSize(TILE_SIZE, TILE_SIZE)), _tileRatio,
+				  lines, polygons, points));
+			}
+		}
+	}
+
+	QFuture<void> future = QtConcurrent::map(tiles, &RasterTile::render);
+	future.waitForFinished();
+
+	for (int i = 0; i < tiles.size(); i++) {
+		const RasterTile &mt = tiles.at(i);
+		const QPixmap &pm = mt.pixmap();
+		painter->drawPixmap(mt.xy(), pm);
+		QPixmapCache::insert(key(mt.zoom(), mt.xy()), pm);
+	}
+}
+
+void ENCMap::setDevicePixelRatio(qreal deviceRatio, qreal mapRatio)
+{
+	Q_UNUSED(mapRatio);
+
+	_tileRatio = deviceRatio;
+}
+
+void ENCMap::setOutputProjection(const Projection &projection)
+{
+	if (projection == _projection)
+		return;
+
+	_projection = projection;
+	updateTransform();
+	QPixmapCache::clear();
+}
+
+Map *ENCMap::create(const QString &path, const Projection &, bool *isMap)
+{
+	if (isMap)
+		*isMap = false;
+
+	return new ENCMap(path);
+}

src/map/encmap.h

@@ -0,0 +1,63 @@
+#ifndef ENCMAP_H
+#define ENCMAP_H
+
+#include "map.h"
+#include "projection.h"
+#include "transform.h"
+#include "ENC/mapdata.h"
+
+class QFile;
+
+class ENCMap : public Map
+{
+	Q_OBJECT
+
+public:
+	ENCMap(const QString &fileName, QObject *parent = 0);
+
+	QString name() const {return _data.name();}
+
+	QRectF bounds() {return _bounds;}
+	RectC llBounds() {return _llBounds;}
+
+	int zoom() const {return _zoom;}
+	void setZoom(int zoom);
+	int zoomFit(const QSize &size, const RectC &rect);
+	int zoomIn();
+	int zoomOut();
+
+	void load();
+	void unload();
+	void setOutputProjection(const Projection &projection);
+	void setDevicePixelRatio(qreal deviceRatio, qreal mapRatio);
+
+	QPointF ll2xy(const Coordinates &c)
+	  {return _transform.proj2img(_projection.ll2xy(c));}
+	Coordinates xy2ll(const QPointF &p)
+	  {return _projection.xy2ll(_transform.img2proj(p));}
+
+	void draw(QPainter *painter, const QRectF &rect, Flags flags);
+
+	bool isValid() const {return _data.isValid();}
+	QString errorString() const {return _data.errorString();}
+
+	static Map *create(const QString &path, const Projection &, bool *isMap);
+
+private:
+	Transform transform(int zoom) const;
+	void updateTransform();
+	QString key(int zoom, const QPoint &xy) const;
+
+	ENC::MapData _data;
+	Projection _projection;
+	Transform _transform;
+	qreal _tileRatio;
+	RectC _llBounds;
+	QRectF _bounds;
+	int _zoom;
+
+	bool _valid;
+	QString _errorString;
+};
+
+#endif // ENCMAP_H

src/map/maplist.cpp

@@ -19,6 +19,7 @@
 #include "osmdroidmap.h"
 #include "gemfmap.h"
 #include "oruxmap.h"
+#include "encmap.h"
 #include "invalidmap.h"
 #include "maplist.h"
 
@@ -54,6 +55,7 @@ MapList::ParserMap MapList::parsers()
 	map.insert("sqlite", &OsmdroidMap::create);
 	map.insert("gemf", &GEMFMap::create);
 	map.insert("otrk2.xml", &OruxMap::create);
+	map.insert("000", &ENCMap::create);
 
 	return map;
 }
@@ -153,6 +155,7 @@ QString MapList::formats()
 	return
 	  qApp->translate("MapList", "Supported files")
 		+ " (" + filter().join(" ") + ");;"
+	  + qApp->translate("MapList", "Electronic Navigational Charts") + " (*.000);;"
 	  + qApp->translate("MapList", "AlpineQuest maps") + " (*.aqm);;"
 	  + qApp->translate("MapList", "GEMF maps") + " (*.gemf);;"
 	  + qApp->translate("MapList", "Garmin IMG maps")

src/map/mapsforgemap.cpp

@@ -1,6 +1,7 @@
 #include <QPainter>
 #include <QPixmapCache>
 #include "common/wgs84.h"
+#include "common/util.h"
 #include "pcs.h"
 #include "rectd.h"
 #include "mapsforgemap.h"
@@ -10,16 +11,6 @@ using namespace Mapsforge;
 
 #define TEXT_EXTENT 160
 
-static int log2i(unsigned val)
-{
-	int ret = 0;
-
-	while (val >>= 1)
-		ret++;
-
-	return ret;
-}
-
 MapsforgeMap::MapsforgeMap(const QString &fileName, QObject *parent)
   : Map(fileName, parent), _data(fileName), _zoom(0),
   _projection(PCS::pcs(3857)), _tileRatio(1.0)
@@ -87,7 +78,7 @@ void MapsforgeMap::setZoom(int zoom)
 
 Transform MapsforgeMap::transform(int zoom) const
 {
-	int z = zoom + log2i(_data.tileSize());
+	int z = zoom + Util::log2i(_data.tileSize());
 
 	double scale = _projection.isGeographic()
 	  ? 360.0 / (1<<z) : (2.0 * M_PI * WGS84_RADIUS) / (1<<z);

src/map/prjfile.cpp

@@ -1,12 +1,9 @@
 #include <QFile>
+#include "common/util.h"
 #include "gcs.h"
 #include "pcs.h"
 #include "prjfile.h"
 
-
-#define ARRAY_SIZE(array) \
-  (sizeof(array) / sizeof(array[0]))
-
 static Projection::Method projectionMethod(const QString &name)
 {
 	static const struct {

src/map/textpathitem.cpp

@@ -237,8 +237,9 @@ static bool reverse(const QPainterPath &path)
 }
 
 TextPathItem::TextPathItem(const QPolygonF &line, const QString *label,
-  const QRect &tileRect, const QFont *font, const QColor *color)
-  : TextItem(label), _font(font), _color(color), _haloColor(0)
+  const QRect &tileRect, const QFont *font, const QColor *color,
+  const QColor *haloColor) : TextItem(label), _font(font), _color(color),
+  _haloColor(haloColor)
 {
 	qreal cw = font->pixelSize() * 0.6;
 	qreal textWidth = _text->size() * cw;
@@ -290,29 +291,32 @@ void TextPathItem::paint(QPainter *painter) const
 	QTransform t = painter->transform();
 
 	painter->setFont(*_font);
-	painter->setPen(_haloColor ? *_haloColor : Qt::white);
 
-	for (int i = 0; i < _text->size(); i++) {
-		QPointF point = _path.pointAtPercent(percent);
-		qreal angle = _path.angleAtPercent(percent);
-		QChar c = _text->at(i);
+	if (_haloColor) {
+		painter->setPen(*_haloColor);
 
-		painter->translate(point);
-		painter->rotate(-angle);
-		painter->drawText(QPoint(-1, fm.descent() - 1), c);
-		painter->drawText(QPoint(1, fm.descent() + 1), c);
-		painter->drawText(QPoint(-1, fm.descent() + 1), c);
-		painter->drawText(QPoint(1, fm.descent() -1), c);
-		painter->drawText(QPoint(0, fm.descent() - 1), c);
-		painter->drawText(QPoint(0, fm.descent() + 1), c);
-		painter->drawText(QPoint(-1, fm.descent()), c);
-		painter->drawText(QPoint(1, fm.descent()), c);
-		painter->setTransform(t);
+		for (int i = 0; i < _text->size(); i++) {
+			QPointF point = _path.pointAtPercent(percent);
+			qreal angle = _path.angleAtPercent(percent);
+			QChar c = _text->at(i);
 
-		int width = fm.horizontalAdvance(_text->at(i));
-		percent += ((qreal)width / (qreal)textWidth) * factor;
+			painter->translate(point);
+			painter->rotate(-angle);
+			painter->drawText(QPoint(-1, fm.descent() - 1), c);
+			painter->drawText(QPoint(1, fm.descent() + 1), c);
+			painter->drawText(QPoint(-1, fm.descent() + 1), c);
+			painter->drawText(QPoint(1, fm.descent() -1), c);
+			painter->drawText(QPoint(0, fm.descent() - 1), c);
+			painter->drawText(QPoint(0, fm.descent() + 1), c);
+			painter->drawText(QPoint(-1, fm.descent()), c);
+			painter->drawText(QPoint(1, fm.descent()), c);
+			painter->setTransform(t);
+
+			int width = fm.horizontalAdvance(_text->at(i));
+			percent += ((qreal)width / (qreal)textWidth) * factor;
+		}
+		percent = (1.0 - factor) / 2.0;
 	}
-	percent = (1.0 - factor) / 2.0;
 
 	painter->setPen(_color ? *_color : Qt::black);
 	for (int i = 0; i < _text->size(); i++) {

src/map/textpathitem.h

@@ -10,7 +10,8 @@ class TextPathItem : public TextItem
 public:
 	TextPathItem() : TextItem(0), _font(0), _color(0) {}
 	TextPathItem(const QPolygonF &line, const QString *label,
-	  const QRect &tileRect, const QFont *font, const QColor *color);
+	  const QRect &tileRect, const QFont *font, const QColor *color,
+	  const QColor *haloColor);
 	TextPathItem(const QPainterPath &line, const QString *label,
 	  const QRect &tileRect, const QFont *font, const QColor *color,
 	  const QColor *haloColor);