public static async Task <PhotoData> Import(string path, ExifData exifData, IAppContext appContext)
{
using (FileStream fs = System.IO.File.OpenRead(path))
{
byte[] bytes;
using (BinaryReader br = new BinaryReader(fs))
{
bytes = br.ReadBytes((int)fs.Length);
}
var bmp = BitmapFactory.DecodeByteArray(bytes, 0, bytes.Length);
var imgWidth = bmp.Width;
var imgHeight = bmp.Height;
var thumbWidth = THUMBNAIL_WIDTH;
var thumbHeight = THUMBNAIL_HEIGHT;
var filename = ImageSaverUtils.GetPhotoFileName();
var filepath = System.IO.Path.Combine(ImageSaverUtils.GetPhotosFileFolder(), filename);
var file = new Java.IO.File(filepath);
byte[] thumbnail = ImageResizer.ResizeImageAndroid(bytes, thumbWidth, thumbHeight, THUMBNAIL_QUALITY);
using (var output = new Java.IO.FileOutputStream(file))
{
output.Write(bytes);
}
PoiDatabase poiDatabase = new PoiDatabase();
string jsonCategories = JsonConvert.SerializeObject(appContext.Settings.Categories);
PhotoData photodata = new PhotoData
{
Datetime = DateTime.Now,
DatetimeTaken = exifData.timeTaken ?? DateTime.Now,
PhotoFileName = filename,
Longitude = exifData.location?.Longitude ?? 0,
Latitude = exifData.location?.Latitude ?? 0,
Altitude = exifData.location?.Altitude ?? 0,
Heading = exifData.heading,
LeftTiltCorrector = 0,
RightTiltCorrector = 0,
Thumbnail = thumbnail,
JsonCategories = jsonCategories,
PictureWidth = imgWidth,
PictureHeight = imgHeight,
MinAltitude = appContext.Settings.MinAltitute,
MaxDistance = appContext.Settings.MaxDistance,
FavouriteFilter = appContext.ShowFavoritesOnly,
ShowElevationProfile = appContext.Settings.ShowElevationProfile
};
//calculate view angle from focal length equivalent on 35mm camera, or use default viev angle 60dg
var viewAngle = exifData.focalLength35mm.HasValue ? 2 * System.Math.Tan(35d / 2d / (double)exifData.focalLength35mm.Value) / System.Math.PI * 180 : 60;
if (imgWidth > imgHeight)
{
photodata.ViewAngleHorizontal = viewAngle;
photodata.ViewAngleVertical = viewAngle / imgWidth * imgHeight;
}
else
{
photodata.ViewAngleHorizontal = viewAngle / imgHeight * imgWidth;
photodata.ViewAngleVertical = viewAngle;
}
if (GpsUtils.HasLocation(exifData.location))
{
var placeInfo = await PlaceNameProvider.AsyncGetPlaceName(exifData.location);
photodata.Tag = placeInfo.PlaceName + " -> ?";
}
else
{
photodata.Tag = "? -> ?";
}
appContext.PhotosModel.InsertItem(photodata);
return(photodata);
}
}
public void Run()
{
var imgWidth = _context.IsPortrait ? _Image.Height : _Image.Width;
var imgHeight = _context.IsPortrait ? _Image.Width : _Image.Height;
var thumbWidth = _context.IsPortrait ? THUMBNAIL_HEIGHT : THUMBNAIL_WIDTH;
var thumbHeight = _context.IsPortrait ? THUMBNAIL_WIDTH : THUMBNAIL_HEIGHT;
ByteBuffer buffer = _Image.GetPlanes()[0].Buffer;
byte[] bytes = new byte[buffer.Remaining()];
buffer.Get(bytes);
var filename = ImageSaverUtils.GetPhotoFileName();
var filepath = System.IO.Path.Combine(ImageSaverUtils.GetPhotosFileFolder(), filename);
var file = new Java.IO.File(filepath);
byte[] thumbnail = ImageResizer.ResizeImageAndroid(bytes, thumbWidth, thumbHeight, THUMBNAIL_QUALITY);
using (var output = new Java.IO.FileOutputStream(file))
{
try
{
output.Write(bytes);
PoiDatabase poiDatabase = new PoiDatabase();
string jsonCategories = JsonConvert.SerializeObject(_context.Settings.Categories);
var tag = _context.MyLocationPlaceInfo.PlaceName + " -> ";
if (_context.SelectedPoi != null)
{
tag += _context.SelectedPoi.Poi.Name;
}
else
{
tag += Android.App.Application.Context.Resources.GetText(Resource.String.Common_Heading);
tag += _context.HeadingX.HasValue ? $" {GpsUtils.Normalize360((_context.HeadingX.Value)):F0}°" : "?°";
}
PhotoData photodata = new PhotoData
{
Tag = tag,
Datetime = DateTime.Now,
DatetimeTaken = DateTime.Now,
PhotoFileName = filename,
Longitude = _context.MyLocation.Longitude,
Latitude = _context.MyLocation.Latitude,
Altitude = _context.MyLocation.Altitude,
Heading = (_context.HeadingX ?? 0) + _context.HeadingCorrector,
LeftTiltCorrector = _context.LeftTiltCorrector,
RightTiltCorrector = _context.RightTiltCorrector,
Thumbnail = thumbnail,
JsonCategories = jsonCategories,
ViewAngleVertical = _context.ViewAngleVertical,
ViewAngleHorizontal = _context.ViewAngleHorizontal,
PictureWidth = imgWidth,
PictureHeight = imgHeight,
MinAltitude = _context.Settings.MinAltitute,
MaxDistance = _context.Settings.MaxDistance,
FavouriteFilter = _context.ShowFavoritesOnly,
ShowElevationProfile = _context.Settings.ShowElevationProfile
};
if (_context.ElevationProfileData != null)
{
photodata.JsonElevationProfileData = _context.ElevationProfileData.Serialize();
}
poiDatabase.InsertItem(photodata);
}
catch (Java.IO.IOException e)
{
e.PrintStackTrace();
}
finally
{
_Image.Close();
}
}
}
public static PhotoData SaveCopy(Bitmap dstBmp, Rect cropRect, PhotoData photodata, int maxDistance, IAppContext context)
{
var croppedBitmap = Bitmap.CreateBitmap(dstBmp, cropRect.Left, cropRect.Top, cropRect.Width(), cropRect.Height());
var viewAngleVertical = context.ViewAngleVertical * croppedBitmap.Height / (double)dstBmp.Height;
var viewAngleHorizontal = context.ViewAngleHorizontal * croppedBitmap.Width / (double)dstBmp.Width;
//center new, minu center old
var hdgCorrectionInPixels = ((cropRect.Left + cropRect.Right) / 2.0) - (dstBmp.Width / 2.0);
//and now to degrees
var hdgCorrectionInDegrees = hdgCorrectionInPixels / (float)dstBmp.Width * context.ViewAngleHorizontal;
//Linear function - calculation of new corrector values
double leftCorrectionInDegrees = context.LeftTiltCorrector + (context.RightTiltCorrector - context.LeftTiltCorrector) * (cropRect.Left / (double)dstBmp.Width);
double rightCorrectionInDegrees = context.LeftTiltCorrector + (context.RightTiltCorrector - context.LeftTiltCorrector) * (cropRect.Right / (double)dstBmp.Width);
//New center of image can be somewhere else, so we need to reflect this in total view angle correction
double totalCorrectionInPixels = (((cropRect.Top + cropRect.Bottom) / 2.0) - (dstBmp.Height / 2.0));
double totalCorrectionInDegrees = (totalCorrectionInPixels / dstBmp.Height) * context.ViewAngleVertical;
var now = DateTime.Now;
PhotoData newPhotodata = new PhotoData
{
Tag = "Copy of " + photodata.Tag,
Datetime = DateTime.Now,
DatetimeTaken = photodata.DatetimeTaken,
PhotoFileName = ImageSaverUtils.GetPhotoFileName(now),
Longitude = photodata.Longitude,
Latitude = photodata.Latitude,
Altitude = photodata.Altitude,
Heading = context.HeadingX.HasValue? context.HeadingX.Value + context.HeadingCorrector + hdgCorrectionInDegrees : (double?)null,
JsonCategories = JsonConvert.SerializeObject(context.Settings.Categories),
ViewAngleVertical = viewAngleVertical,
ViewAngleHorizontal = viewAngleHorizontal,
LeftTiltCorrector = leftCorrectionInDegrees + totalCorrectionInDegrees,
RightTiltCorrector = rightCorrectionInDegrees + totalCorrectionInDegrees,
PictureWidth = croppedBitmap.Width,
PictureHeight = croppedBitmap.Height,
MinAltitude = 0,
MaxDistance = maxDistance,
FavouriteFilter = context.ShowFavoritesOnly,
ShowElevationProfile = context.Settings.ShowElevationProfile
};
var thumbnainBitmap = Bitmap.CreateScaledBitmap(croppedBitmap, THUMBNAIL_WIDTH, THUMBNAIL_HEIGHT, false);
using (MemoryStream ms = new MemoryStream())
{
thumbnainBitmap.Compress(Bitmap.CompressFormat.Jpeg, THUMBNAIL_QUALITY, ms);
newPhotodata.Thumbnail = ms.ToArray();
}
if (context.ElevationProfileData != null)
{
newPhotodata.JsonElevationProfileData = context.ElevationProfileData.Serialize();
}
var filePath = System.IO.Path.Combine(ImageSaverUtils.GetPhotosFileFolder(), newPhotodata.PhotoFileName);
var stream = new FileStream(filePath, FileMode.Create);
croppedBitmap.Compress(Bitmap.CompressFormat.Jpeg, 100, stream);
return(newPhotodata);
}
