//================Public methods=============//
public void FetchDetailedImageInfoAsync(ImageInfo imageInfo)
{
ThreadPool.QueueUserWorkItem(
(args) =>
{
lock (mLockObj)
{
mImageFile = Path.Combine(mImagesPath, imageInfo.ImageName);
mDbImgRowId = imageInfo.DbRowId;
DbDao dbDao = DbDao.GetInstance();
mPhotoCaptureLocation = dbDao.GetPhotoCaptureLocation(
mContext,
mDbImgRowId);
mComments = dbDao.GetComments(mContext, mDbImgRowId);
RaiseModelChanged(
DetailedImageModelEvents.DETAILED_IMAGE_INFO_FETCHED,
new FetchedDetailedImageInfo {
ImageFilePath = mImageFile,
Comments = mComments,
CaptureLocation = mPhotoCaptureLocation
}
);
}
});
}
public void ImportImageFromCameraAsync(String cameraImgFileName)
{
ThreadPool.QueueUserWorkItem(
(args) =>
{
lock (lockObj)
{
DbDao dbDao = DbDao.GetInstance();
long dbImgRowId = dbDao.InsertImageInfo(mContext, cameraImgFileName);
// Fetching photo capture location.
Location location =
LocationManagerUtils.getLastKnownLocationFromBestAvailableProvider(mContext);
if (location != null)
{
dbDao.InsertPhotoCaptureLocation(mContext, dbImgRowId, location);
}
ImageInfo imageInfo = new ImageInfo
{
DbRowId = dbImgRowId,
ImageName = cameraImgFileName
};
mImageInfoList.Add(imageInfo);
RaiseModelChanged(OverviewImageGalleryModelEvents.IMAGES_COLLECTION_CHANGED, null);
}
});
}
//================Private methods=============//
/*return copied image info or null if image copy was not successful;*/
private ImageInfo TryImportImageFromGallery(Stream imageInputStream)
{
if (ExtStorageUtils.IsExtStorageWritable())
{
string imgName = Guid.NewGuid().ToString();
string newImgFile = Path.Combine(mImagesPath, imgName);
using (imageInputStream)
using (var outputStream = new FileStream(newImgFile, FileMode.CreateNew))
{
try
{
imageInputStream.CopyTo(outputStream);
// Saving copied image info to the database.
long dbRowId = DbDao.GetInstance().InsertImageInfo(mContext, imgName);
return(new ImageInfo {
DbRowId = dbRowId,
ImageName = imgName
});
}
catch (Exception) { }
}
}
return(new ImageInfo {
DbRowId = -1,
ImageName = null
});
}
public void AddNewCommentAsync(string comment)
{
ThreadPool.QueueUserWorkItem(
(args) =>
{
lock (mLockObj)
{
DbDao.GetInstance().InsertComment(mContext, mDbImgRowId, comment);
mComments.Add(comment);
RaiseModelChanged(DetailedImageModelEvents.COMMENTS_UPDATED, null);
}
});
}
public void RemoveImageAsync(int position)
{
ThreadPool.QueueUserWorkItem(
(args) =>
{
lock (lockObj)
{
ImageInfo imageInfo = mImageInfoList[position];
DbDao.GetInstance().DeleteImageInfoEntry(mContext, imageInfo.DbRowId);
File.Delete(Path.Combine(mImagesPath, imageInfo.ImageName));
mImageInfoList.RemoveAt(position);
RaiseModelChanged(OverviewImageGalleryModelEvents.IMAGES_COLLECTION_CHANGED, null);
}
});
}
public void FetchImagesInfoAsync()
{
ThreadPool.QueueUserWorkItem(
(args) =>
{
lock (lockObj)
{
List <ImageInfo> imgInfoList = DbDao.GetInstance().GetAllImagesInfo(mContext);
mImageInfoList = imgInfoList;
RaiseModelChanged(
OverviewImageGalleryModelEvents.IMAGES_INFO_FETCHED,
new FetchedImagesInfo
{
ImagesPath = mImagesPath,
ImagesInfoList = mImageInfoList
});
}
});
}