// Save the index to file, assuming it is loaded and sorted
void CreateIndexFromPlaceInfos(ProgressReportDelegate pr, int nTask, int nTotal)
{
// initialize Writer
using (FileStream fsIdx = File.Open(IndexFileName(), FileMode.Create, FileAccess.Write, FileShare.None))
using (BinaryWriter bwIdx = new BinaryWriter(fsIdx, System.Text.Encoding.Default))
{
// write index entry count (total overall place infos)
bwIdx.Write(this.m_indexedPlaces.Length);
// iterate over PlaceInfos
int nPlaceCount = m_indexedPlaces.Length;
for (int i = 0; i < nPlaceCount; i++)
{
IndexedPlace ip = m_indexedPlaces[i];
bwIdx.Write(ip.indexEntry.fileNumber);
bwIdx.Write(ip.indexEntry.seekOffset);
if (i % 100 == 0)
{ // don't update progress too often as that slows down
if (pr != null)
{
pr(ProgressPercent(nTask, nTotal, 0, nPlaceCount, i), "Writing index");
}
}
}
}
}
// add the places from a single wwp file to our places array
// note that nNextEntry is passed by reference - the total count is accumulated here
void AddSingleWwpPlaces(int nFileNbr, ref int nNextEntry)
{
// open reader
using (BinaryReader brWwp = OpenWwpReader(nFileNbr))
{
int nEntryCount = brWwp.ReadInt32(); // read number of entries
for (int i = 0; i < nEntryCount; i++)
{
IndexedPlace ip = new IndexedPlace(); // allocate indexed place class to store entries
ip.pn = new WorldWindPlacename();
ip.placeDescriptor = this.m_placeNameSet; // "inherit" placeNameSet
ip.indexEntry.fileNumber = (System.Int16)nFileNbr; // remember file number
ip.indexEntry.seekOffset = (int)brWwp.BaseStream.Position; // and location in file
PlaceItem pi = ip;
ReadPlaceName(brWwp, ref pi.pn, MetaDataAction.Skip); // skipping the metadata is faster
this.m_indexedPlaces[nNextEntry++] = ip; // remember this indexed place
}
}
}
// add the places from a single wwp file to our places array
// note that nNextEntry is passed by reference - the total count is accumulated here
void AddSingleWwpPlaces(int nFileNbr, ref int nNextEntry)
{
// open reader
using( BinaryReader brWwp = OpenWwpReader(nFileNbr) )
{
int nEntryCount = brWwp.ReadInt32(); // read number of entries
for(int i=0; i < nEntryCount; i++)
{
IndexedPlace ip = new IndexedPlace(); // allocate indexed place class to store entries
ip.pn = new WorldWindPlacename();
ip.placeDescriptor = this.m_placeNameSet; // "inherit" placeNameSet
ip.indexEntry.fileNumber = (System.Int16)nFileNbr; // remember file number
ip.indexEntry.seekOffset = (int)brWwp.BaseStream.Position; // and location in file
PlaceItem pi = ip;
ReadPlaceName(brWwp, ref pi.pn, MetaDataAction.Skip); // skipping the metadata is faster
this.m_indexedPlaces[nNextEntry++] = ip; // remember this indexed place
}
}
}
