internal static void ReadOptionalFields(ReadBuffer readBuffer, MapFileInfoBuilder mapFileInfoBuilder)
{
OptionalFields optionalFields = new OptionalFields(readBuffer.ReadByte());
mapFileInfoBuilder.optionalFields = optionalFields;
optionalFields.ReadOptionalFields(readBuffer);
}
internal static void ReadTilePixelSize(ReadBuffer readBuffer, MapFileInfoBuilder mapFileInfoBuilder)
{
// get and check the tile pixel size (2 bytes)
int tilePixelSize = readBuffer.ReadShort();
// if (tilePixelSize != Tile.TILE_SIZE) {
// return new FileOpenResult("unsupported tile pixel size: " + tilePixelSize);
// }
mapFileInfoBuilder.tilePixelSize = tilePixelSize;
}
internal static void ReadFileVersion(ReadBuffer readBuffer, MapFileInfoBuilder mapFileInfoBuilder)
{
// get and check the file version (4 bytes)
int fileVersion = readBuffer.ReadInt();
if (fileVersion < SUPPORTED_FILE_VERSION_MIN || fileVersion > SUPPORTED_FILE_VERSION_MAX)
{
throw new MapFileException("unsupported file version: " + fileVersion);
}
mapFileInfoBuilder.fileVersion = fileVersion;
}
internal static void ReadFileSize(ReadBuffer readBuffer, long fileSize, MapFileInfoBuilder mapFileInfoBuilder)
{
// get and check the file size (8 bytes)
long headerFileSize = readBuffer.ReadLong();
if (headerFileSize != fileSize)
{
throw new MapFileException("invalid file size: " + headerFileSize);
}
mapFileInfoBuilder.fileSize = fileSize;
}
internal static void ReadProjectionName(ReadBuffer readBuffer, MapFileInfoBuilder mapFileInfoBuilder)
{
// get and check the projection name
string projectionName = readBuffer.ReadUTF8EncodedString();
if (!MERCATOR.Equals(projectionName))
{
throw new MapFileException("unsupported projection: " + projectionName);
}
mapFileInfoBuilder.projectionName = projectionName;
}
internal static void ReadMapDate(ReadBuffer readBuffer, MapFileInfoBuilder mapFileInfoBuilder)
{
// get and check the the map date (8 bytes)
long mapDate = readBuffer.ReadLong();
// is the map date before 2010-01-10 ?
if (mapDate < 1200000000000L)
{
throw new MapFileException("invalid map date: " + mapDate);
}
mapFileInfoBuilder.mapDate = mapDate;
}
internal static void ReadBoundingBox(ReadBuffer readBuffer, MapFileInfoBuilder mapFileInfoBuilder)
{
double minLatitude = PointUtils.MicrodegreesToDegrees(readBuffer.ReadInt());
double minLongitude = PointUtils.MicrodegreesToDegrees(readBuffer.ReadInt());
double maxLatitude = PointUtils.MicrodegreesToDegrees(readBuffer.ReadInt());
double maxLongitude = PointUtils.MicrodegreesToDegrees(readBuffer.ReadInt());
try
{
mapFileInfoBuilder.boundingBox = new BoundingBox(minLongitude, minLatitude, maxLongitude, maxLatitude);
}
catch (System.ArgumentException e)
{
throw new MapFileException(e.Message);
}
}
internal MapFileInfo(MapFileInfoBuilder mapFileInfoBuilder)
{
this.Comment = mapFileInfoBuilder.optionalFields.Comment;
this.CreatedBy = mapFileInfoBuilder.optionalFields.CreatedBy;
this.DebugFile = mapFileInfoBuilder.optionalFields.IsDebugFile;
this.FileSize = mapFileInfoBuilder.fileSize;
this.FileVersion = mapFileInfoBuilder.fileVersion;
this.LanguagesPreference = mapFileInfoBuilder.optionalFields.LanguagesPreference;
this.BoundingBox = mapFileInfoBuilder.boundingBox;
this.MapDate = mapFileInfoBuilder.mapDate;
this.NumberOfSubFiles = mapFileInfoBuilder.numberOfSubFiles;
this.PoiTags = mapFileInfoBuilder.poiTags;
this.ProjectionName = mapFileInfoBuilder.projectionName;
this.StartPosition = mapFileInfoBuilder.optionalFields.StartPosition;
this.StartZoomLevel = mapFileInfoBuilder.optionalFields.StartZoomLevel;
this.TilePixelSize = mapFileInfoBuilder.tilePixelSize;
this.WayTags = mapFileInfoBuilder.wayTags;
this.ZoomLevelMax = mapFileInfoBuilder.zoomLevelMax;
this.ZoomLevelMin = mapFileInfoBuilder.zoomLevelMin;
}
internal static void ReadPoiTags(ReadBuffer readBuffer, MapFileInfoBuilder mapFileInfoBuilder)
{
// get and check the number of POI tags (2 bytes)
int numberOfPoiTags = readBuffer.ReadShort();
if (numberOfPoiTags < 0)
{
throw new MapFileException("invalid number of POI tags: " + numberOfPoiTags);
}
Tag[] poiTags = new Tag[numberOfPoiTags];
for (int currentTagId = 0; currentTagId < numberOfPoiTags; ++currentTagId)
{
// get and check the POI tag
string tag = readBuffer.ReadUTF8EncodedString();
if (string.ReferenceEquals(tag, null))
{
throw new MapFileException("POI tag must not be null: " + currentTagId);
}
poiTags[currentTagId] = new Tag(tag);
}
mapFileInfoBuilder.poiTags = poiTags;
}
