public static async Task <HLinkMediaModel> CreateClippedMediaModel(HLinkLoadImageModel argHLinkLoadImageModel)
{
if (argHLinkLoadImageModel is null)
{
throw new ArgumentNullException(nameof(argHLinkLoadImageModel));
}
if (!argHLinkLoadImageModel.DeRef.Valid)
{
throw new ArgumentException("CreateClippedMediaModel argument is invalid", nameof(argHLinkLoadImageModel));
}
// TODO cleanup code. Multiple copies of things in use
MediaModel theMediaModel = argHLinkLoadImageModel.DeRef;
SKBitmap resourceBitmap = new SKBitmap();
MediaModel newMediaModel = new MediaModel();
string newHLinkKey = argHLinkLoadImageModel.HLinkKey + "-" + argHLinkLoadImageModel.GCorner1X + argHLinkLoadImageModel.GCorner1Y + argHLinkLoadImageModel.GCorner2X + argHLinkLoadImageModel.GCorner2Y;
string outFileName = Path.Combine("Cropped", newHLinkKey + ".png");
string outFilePath = Path.Combine(DataStore.AD.CurrentDataFolder.FullName, outFileName);
Debug.WriteLine(argHLinkLoadImageModel.DeRef.MediaStorageFilePath);
// Check if already exists
MediaModel fileExists = DV.MediaDV.GetModelFromHLinkString(newHLinkKey);
if (!fileExists.Valid)
{
// Needs clipping
using (StreamReader stream = new StreamReader(theMediaModel.MediaStorageFilePath))
{
resourceBitmap = SKBitmap.Decode(stream.BaseStream);
}
// Check for too large a bitmap
Debug.WriteLine("Image ResourceBitmap size: " + resourceBitmap.ByteCount);
if (resourceBitmap.ByteCount > int.MaxValue - 1000)
{
// TODO Handle this better. Perhaps resize? Delete for now
resourceBitmap = new SKBitmap();
}
float crleft = (float)(argHLinkLoadImageModel.GCorner1X / 100d * theMediaModel.MetaDataWidth);
float crright = (float)(argHLinkLoadImageModel.GCorner2X / 100d * theMediaModel.MetaDataWidth);
float crtop = (float)(argHLinkLoadImageModel.GCorner1Y / 100d * theMediaModel.MetaDataHeight);
float crbottom = (float)(argHLinkLoadImageModel.GCorner2Y / 100d * theMediaModel.MetaDataHeight);
SKRect cropRect = new SKRect(crleft, crtop, crright, crbottom);
SKBitmap croppedBitmap = new SKBitmap(
(int)cropRect.Width,
(int)cropRect.Height
);
SKRect dest = new SKRect(
0,
0,
cropRect.Width,
cropRect.Height
);
SKRect source = new SKRect(
cropRect.Left,
cropRect.Top,
cropRect.Right,
cropRect.Bottom);
using (SKCanvas canvas = new SKCanvas(croppedBitmap))
{
canvas.DrawBitmap(resourceBitmap, source, dest);
}
// create an image COPY
SKImage image = SKImage.FromBitmap(croppedBitmap);
// encode the image (defaults to PNG)
SKData encoded = image.Encode();
// get a stream over the encoded data
using (Stream stream = File.Open(outFilePath, FileMode.OpenOrCreate, System.IO.FileAccess.Write, FileShare.ReadWrite))
{
encoded.SaveTo(stream);
}
croppedBitmap.Dispose();
// ------------ Save new MediaObject
newMediaModel = theMediaModel.Copy();
newMediaModel.HLinkKey = newHLinkKey;
newMediaModel.HomeImageHLink.HLinkKey = newHLinkKey;
newMediaModel.HomeImageHLink.HomeImageType = CommonConstants.HomeImageTypeThumbNail;
newMediaModel.HomeImageHLink.HomeSymbol = CommonConstants.IconMedia;
newMediaModel.OriginalFilePath = outFileName;
newMediaModel.MediaStorageFile = await StoreFolder.FolderGetFileAsync(DataStore.AD.CurrentDataFolder, outFileName).ConfigureAwait(false);
newMediaModel.HomeImageHLink.HomeImageType = CommonConstants.HomeImageTypeThumbNail;
newMediaModel.IsClippedFile = true;
newMediaModel.MetaDataHeight = cropRect.Height;
newMediaModel.MetaDataWidth = cropRect.Width;
DataStore.DS.MediaData.Add(newMediaModel);
//await StorePostLoad.fixMediaFile(newMediaModel).ConfigureAwait(false);
}
resourceBitmap.Dispose();
return(newMediaModel.HLink);
}