public static async Task<Picture> GetPictureDetails(StorageFile file)
{
if (file == null)
return null;
//get image
BitmapImage image = await GetImageFromStorageFile(file);
//get GPS coordinates
var imageProperties = await file.Properties.GetImagePropertiesAsync();
string imageLatitude = "";
string imageLongitude = "";
string latRefText, longRefText, latDegText, latMinText, latSecText, longDegText, longMinText, longSecText;
if ((imageProperties.Latitude.HasValue) && (imageProperties.Longitude.HasValue))
{
double latitude = imageProperties.Latitude.Value;
double longitude = imageProperties.Longitude.Value;
latRefText = (latitude >= 0) ? "N" : "S";
longRefText = (longitude >= 0) ? "E" : "W";
double latDeg = Math.Floor(Math.Abs(latitude));
latDegText = latDeg.ToString().TruncateLongString(2);
double latMin = Math.Floor((Math.Abs(latitude) - latDeg) * 60);
latMinText = latMin.ToString().TruncateLongString(2);
latSecText = ((Math.Abs(latitude) - latDeg - latMin / 60) * 3600).ToString().TruncateLongString(7);
double longDeg = Math.Floor(Math.Abs(longitude));
longDegText = longDeg.ToString().TruncateLongString(2);
double longMin = Math.Floor((Math.Abs(longitude) - longDeg) * 60);
longMinText = longMin.ToString().TruncateLongString(2);
longSecText = ((Math.Abs(longitude) - longDeg - longMin / 60) * 3600).ToString().TruncateLongString(7);
imageLatitude = latDegText + "° " + latMinText + "\" " + latSecText + "' " + latRefText;
imageLongitude = longDegText + "° " + longMinText + "\" " + longSecText + "' " + longRefText;
}
//get exposure and white balance
string[] requests =
{
"System.Photo.ExposureTime",
"System.Photo.WhiteBalance"
};
IDictionary<string, object> retrievedProps = await imageProperties.RetrievePropertiesAsync(requests);
string exposure = "";
if (retrievedProps.ContainsKey("System.Photo.ExposureTime"))
{
exposure = ((double)retrievedProps["System.Photo.ExposureTime"] * 1000).ToString() + " ms";
}
string whiteBalance = "";
if (retrievedProps.ContainsKey("System.Photo.WhiteBalance"))
{
whiteBalance = (retrievedProps["System.Photo.WhiteBalance"]).ToString();
}
//get orientation
string orientation = "";
switch (imageProperties.Orientation)
{
case PhotoOrientation.FlipHorizontal:
orientation = "odbicie horyzontalne";
break;
case PhotoOrientation.FlipVertical:
orientation = "odbicie wertykalne";
break;
case PhotoOrientation.Normal:
orientation = "normalna";
break;
case PhotoOrientation.Rotate180:
orientation = "obrót 180 stopni";
break;
case PhotoOrientation.Rotate270:
orientation = "obrót 270 stopni";
break;
case PhotoOrientation.Rotate90:
orientation = "obrót 90 stopni";
break;
case PhotoOrientation.Transpose:
orientation = "transpozycja";
break;
case PhotoOrientation.Transverse:
orientation = "poprzeczna";
break;
case PhotoOrientation.Unspecified:
orientation = "nieokreślona";
break;
}
//create picture
Picture picture = new Picture
{
Title = file.DisplayName,
Image = image,
Path = file.Path,
Name = file.Name,
Type = file.DisplayType,
DateTaken = imageProperties.DateTaken.ToString(),
Orientation = orientation,
CameraModel = imageProperties.CameraModel,
Latitude = imageLatitude,
Longitude = imageLongitude,
Exposure = exposure,
WhiteBalance = whiteBalance
};
return picture;
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
Picture = new Picture();
Picture = await ImageManager.GetPictureDetails((StorageFile)e.Parameter);
}
