public async Task <Dictionary <string, Record> > writeGeoTag(Dictionary <string, Record> recordDict, BlockingCollection <string> fileQueue, string inPath, string outPath)
{
int mQueueSize = fileQueue.Count;
progressForm = new ProgressForm("Writing geotags to photos...");
string[] _files = Directory.GetFiles(inPath);
progressForm.Show();
progressForm.BringToFront();
progressForm.cancel += cancelImport;
cts = new CancellationTokenSource();
var token = cts.Token;
var progressHandler1 = new Progress <int>(value =>
{
progressForm.ProgressValue = value;
progressForm.Message = "Geotagging, please wait... " + value.ToString() + "% completed\n" +
geoTagCount + " of " + mQueueSize + " photos geotagged\n" +
"Photos with no geomark: " + stationaryCount + "\n" + "Photos with no gps point: " + errorCount + "\n";
});
var progressValue = progressHandler1 as IProgress <int>;
geoTagCount = 0;
errorCount = 0;
stationaryCount = 0;
Dictionary <string, Record> newRecordDict = new Dictionary <string, Record>();
int processors = Environment.ProcessorCount;
int minWorkerThreads = processors;
int minIOThreads = processors;
int maxWorkerThreads = processors;
int maxIOThreads = processors;
//ThreadPool.SetMinThreads(minWorkerThreads, minIOThreads);
ThreadPool.SetMaxThreads(maxWorkerThreads, maxIOThreads);
await Task.Factory.StartNew(() =>
{
try
{
while (fileQueue.Count != 0)
{
if (token.IsCancellationRequested)
{
token.ThrowIfCancellationRequested();
}
Parallel.Invoke(
() =>
{
ThreadInfo threadInfo = new ThreadInfo();
threadInfo.OutPath = outPath;
threadInfo.Length = mQueueSize;
threadInfo.ProgressHandler = progressHandler1;
threadInfo.File = fileQueue.Take();
try
{
Record r = recordDict[Path.GetFileNameWithoutExtension(threadInfo.File)];
threadInfo.Record = r;
if (r.GeoMark)
{
Record newRecord = null;
newRecord = ProcessFile(threadInfo).Result;
newRecordDict.Add(r.PhotoName, r);
}
else
{
object a = "nogps";
incrementGeoTagError(a);
}
}
catch (KeyNotFoundException ex)
{
object a = "nokey";
incrementGeoTagError(a);
}
});
}
}
catch (OperationCanceledException)
{
cts.Dispose();
}
}, cts.Token);
progressForm.Invoke(
new MethodInvoker(() => progressValue.Report(100)
));
progressForm.enableOK();
progressForm.disableCancel();
return(newRecordDict);
}
/// <summary>
///
/// </summary>
/// <param name="path"></param>
/// <param name="allRecords"></param>
/// <returns></returns>
public async Task <Dictionary <string, Record> > readFromDatabase(string path, Boolean allRecords)
{
Dictionary <string, Record> recordDict = new Dictionary <string, Record>();
ProgressForm progressForm = new ProgressForm("Reading from database...");
DataTable table = new DataTable();
progressForm.Show();
progressForm.BringToFront();
progressForm.cancel += cancelImport;
cts = new CancellationTokenSource();
var token = cts.Token;
var progressHandler1 = new Progress <int>(value =>
{
progressForm.ProgressValue = value;
progressForm.Message = "Database read, please wait... " + value.ToString() + "% completed";
});
var progressValue = progressHandler1 as IProgress <int>;
try
{
await Task.Run(() =>
{
if (token.IsCancellationRequested)
{
token.ThrowIfCancellationRequested();
}
string connectionString = string.Format("Provider={0}; Data Source={1}; Jet OLEDB:Engine Type={2}",
"Microsoft.Jet.OLEDB.4.0", path, 5);
connection = new OleDbConnection(connectionString);
//string connectionStr = connection.ConnectionString;
string strSQL;
string lengthSQL; //sql count string
int length; //number of records to process
if (allRecords)
{
strSQL = "SELECT * FROM PhotoList";
lengthSQL = "SELECT Count(Photo) FROM PhotoList;";
}
else
{
strSQL = "SELECT * FROM PhotoList WHERE PhotoList.GeoMark = true;";
lengthSQL = "SELECT Count(PhotoID) FROM PhotoList WHERE PhotoList.GeoMark = true;";
}
OleDbCommand commandLength = new OleDbCommand(lengthSQL, connection);
OleDbCommand command = new OleDbCommand(strSQL, connection);
connection.Open();
OleDbDataReader readerColumn = command.ExecuteReader(CommandBehavior.KeyInfo);
DataTable schemaTable = readerColumn.GetSchemaTable();
foreach (DataRow col in schemaTable.Rows)
{
string c = col.Field <String>("ColumnName");
table.Columns.Add(c);
}
readerColumn.Close();
length = (Int32)commandLength.ExecuteScalar();
using (OleDbDataReader reader = command.ExecuteReader())
{
int i = 0;
while (reader.Read())
{
Object[] row = new Object[reader.FieldCount];
reader.GetValues(row);
String photo = (string)row[1];
Record r = buildDictionary(i, row).Result;
//Record r = buildDictionary(ref table, row);
recordDict.Add(r.PhotoName, r);
i++;
double percent = ((double)i / length) * 100;
int percentInt = (int)Math.Ceiling(percent);
if (progressValue != null)
{
progressValue.Report(percentInt);
}
//token.ThrowIfCancellationRequested();
}
}
}, cts.Token);
}
catch (ArgumentException ex)
{
}
catch (NullReferenceException ex)
{
//txtConsole.AppendText(ex.StackTrace);
}
catch (OperationCanceledException)
{
cts.Dispose();
}
connection.Close();
progressForm.Close();
return(recordDict);
}
public async Task <GMapOverlay> readGeoTag(BlockingCollection <string> fileQueue, string folderPath, string layer, string color)
{
int mQueueSize = fileQueue.Count;
string[] files = Directory.GetFiles(folderPath);
GMapOverlay overlay = new GMapOverlay(layer);
progressForm = new ProgressForm("Importing Photos...");
progressForm.Show();
progressForm.BringToFront();
progressForm.cancel += cancelImport;
cts = new CancellationTokenSource();
var token = cts.Token;
geoTagCount = 0;
id = 0;
int length = files.Length;
Bitmap bitmap = ColorTable.getBitmap(color, 4);
Dictionary <string, Record> recordDict = new Dictionary <string, Record>();
var progressHandler1 = new Progress <int>(value =>
{
progressForm.ProgressValue = value;
progressForm.Message = "Import in progress, please wait... " + value.ToString() + "% completed\n" +
geoTagCount + " of " + mQueueSize + " photos geotagged";
});
var progressValue = progressHandler1 as IProgress <int>;
await Task.Factory.StartNew(() =>
{
try
{
while (fileQueue.Count != 0)
{
if (token.IsCancellationRequested)
{
token.ThrowIfCancellationRequested();
}
Parallel.Invoke(
() =>
{
ThreadInfo threadInfo = new ThreadInfo();
threadInfo.Length = mQueueSize;
threadInfo.ProgressHandler = progressHandler1;
threadInfo.File = fileQueue.Take();
Record r = null;
r = readData(threadInfo);
MarkerTag tag = new MarkerTag(color, id);
GMapMarker marker = new GMarkerGoogle(new PointLatLng(r.Latitude, r.Longitude), bitmap);
marker.Tag = tag;
tag.Size = 4;
tag.PhotoName = r.PhotoName;
tag.Path = Path.GetFullPath(r.Path);
overlay.Markers.Add(marker);
});
}
}
catch (OperationCanceledException)
{
cts.Dispose();
}
}, cts.Token);
progressForm.Close();
return(overlay);
}