public async Task <DataResolverResult> Resolve(string identifier, TaskParameter parameters, CancellationToken token)
{
ImageSource source = parameters.Source;
if (!string.IsNullOrWhiteSpace(parameters.LoadingPlaceholderPath) && parameters.LoadingPlaceholderPath == identifier)
{
source = parameters.LoadingPlaceholderSource;
}
else if (!string.IsNullOrWhiteSpace(parameters.ErrorPlaceholderPath) && parameters.ErrorPlaceholderPath == identifier)
{
source = parameters.ErrorPlaceholderSource;
}
var resolvedData = await(Configuration.DataResolverFactory ?? new DataResolverFactory())
.GetResolver(identifier, source, parameters, Configuration)
.Resolve(identifier, parameters, token).ConfigureAwait(false);
if (resolvedData?.Stream == null)
{
throw new FileNotFoundException(identifier);
}
var svg = new SKSvg()
{
ThrowOnUnsupportedElement = false,
};
SKPicture picture;
if (ReplaceStringMap == null || ReplaceStringMap.Count == 0)
{
using (var svgStream = resolvedData.Stream)
{
picture = svg.Load(svgStream);
}
}
else
{
using (var svgStream = resolvedData.Stream)
using (var reader = new StreamReader(svgStream))
{
var inputString = await reader.ReadToEndAsync();
foreach (var map in ReplaceStringMap
.Where(v => v.Key.StartsWith("regex:")))
{
inputString = Regex.Replace(inputString, map.Key.Substring(6), map.Value);
}
var builder = new StringBuilder(inputString);
foreach (var map in ReplaceStringMap
.Where(v => !v.Key.StartsWith("regex:", StringComparison.OrdinalIgnoreCase)))
{
builder.Replace(map.Key, map.Value);
}
using (var svgFinalStream = new MemoryStream(Encoding.UTF8.GetBytes(builder.ToString())))
{
picture = svg.Load(svgFinalStream);
}
}
}
double sizeX = 0;
double sizeY = 0;
if (VectorWidth <= 0 && VectorHeight <= 0)
{
if (picture.CullRect.Width > 0)
{
sizeX = picture.CullRect.Width;
}
else
{
sizeX = 300;
}
if (picture.CullRect.Height > 0)
{
sizeY = picture.CullRect.Height;
}
else
{
sizeY = 300;
}
}
else if (VectorWidth > 0 && VectorHeight > 0)
{
sizeX = VectorWidth;
sizeY = VectorHeight;
}
else if (VectorWidth > 0)
{
sizeX = VectorWidth;
sizeY = (VectorWidth / picture.CullRect.Width) * picture.CullRect.Height;
}
else
{
sizeX = (VectorHeight / picture.CullRect.Height) * picture.CullRect.Width;
sizeY = VectorHeight;
}
if (UseDipUnits)
{
sizeX = sizeX.DpToPixels();
sizeY = sizeY.DpToPixels();
}
resolvedData.ImageInformation.SetType(ImageInformation.ImageType.SVG);
using (var bitmap = new SKBitmap(new SKImageInfo((int)sizeX, (int)sizeY)))
using (var canvas = new SKCanvas(bitmap))
using (var paint = new SKPaint())
{
canvas.Clear(SKColors.Transparent);
float scaleX = (float)sizeX / picture.CullRect.Width;
float scaleY = (float)sizeY / picture.CullRect.Height;
var matrix = SKMatrix.MakeScale(scaleX, scaleY);
canvas.DrawPicture(picture, ref matrix, paint);
canvas.Flush();
#if __IOS__
var info = bitmap.Info;
CGImage cgImage;
IntPtr size;
using (var provider = new CGDataProvider(bitmap.GetPixels(out size), size.ToInt32()))
using (var colorSpace = CGColorSpace.CreateDeviceRGB())
using (cgImage = new CGImage(info.Width, info.Height, 8, info.BitsPerPixel, info.RowBytes,
colorSpace, CGBitmapFlags.PremultipliedLast | CGBitmapFlags.ByteOrder32Big,
provider, null, false, CGColorRenderingIntent.Default))
{
IDecodedImage <object> container = new DecodedImage <object>()
{
Image = new UIImage(cgImage),
};
return(new DataResolverResult(container, resolvedData.LoadingResult, resolvedData.ImageInformation));
}
#elif __MACOS__
var info = bitmap.Info;
CGImage cgImage;
IntPtr size;
using (var provider = new CGDataProvider(bitmap.GetPixels(out size), size.ToInt32()))
using (var colorSpace = CGColorSpace.CreateDeviceRGB())
using (cgImage = new CGImage(info.Width, info.Height, 8, info.BitsPerPixel, info.RowBytes,
colorSpace, CGBitmapFlags.PremultipliedLast | CGBitmapFlags.ByteOrder32Big,
provider, null, false, CGColorRenderingIntent.Default))
{
IDecodedImage <object> container = new DecodedImage <object>()
{
Image = new NSImage(cgImage, CGSize.Empty),
};
return(new DataResolverResult(container, resolvedData.LoadingResult, resolvedData.ImageInformation));
}
#elif __ANDROID__
using (var skiaPixmap = bitmap.PeekPixels())
{
var info = skiaPixmap.Info;
// destination values
var config = Bitmap.Config.Argb8888;
var dstInfo = new SKImageInfo(info.Width, info.Height);
// try keep the pixel format if we can
switch (info.ColorType)
{
case SKColorType.Alpha8:
config = Bitmap.Config.Alpha8;
dstInfo.ColorType = SKColorType.Alpha8;
break;
case SKColorType.Rgb565:
config = Bitmap.Config.Rgb565;
dstInfo.ColorType = SKColorType.Rgb565;
dstInfo.AlphaType = SKAlphaType.Opaque;
break;
case SKColorType.Argb4444:
config = Bitmap.Config.Argb4444;
dstInfo.ColorType = SKColorType.Argb4444;
break;
}
// destination bitmap
var bmp = Bitmap.CreateBitmap(info.Width, info.Height, config);
var ptr = bmp.LockPixels();
// copy
var success = skiaPixmap.ReadPixels(dstInfo, ptr, dstInfo.RowBytes);
// confirm
bmp.UnlockPixels();
if (!success)
{
bmp.Recycle();
bmp.Dispose();
bmp = null;
}
IDecodedImage <object> container = new DecodedImage <object>()
{
Image = bmp,
};
return(new DataResolverResult(container, resolvedData.LoadingResult, resolvedData.ImageInformation));
}
#elif __WINDOWS__
if (parameters.Transformations == null || parameters.Transformations.Count == 0)
{
WriteableBitmap writeableBitmap = null;
await Configuration.MainThreadDispatcher.PostAsync(async() =>
{
using (var skiaImage = SKImage.FromPixels(bitmap.PeekPixels()))
{
var info = new SKImageInfo(skiaImage.Width, skiaImage.Height);
writeableBitmap = new WriteableBitmap(info.Width, info.Height);
var buffer = writeableBitmap.PixelBuffer as IBufferByteAccess;
if (buffer == null)
{
throw new InvalidCastException("Unable to convert WriteableBitmap.PixelBuffer to IBufferByteAccess.");
}
IntPtr ptr;
var hr = buffer.Buffer(out ptr);
if (hr < 0)
{
throw new InvalidCastException("Unable to retrieve pixel address from WriteableBitmap.PixelBuffer.");
}
using (var pixmap = new SKPixmap(info, ptr))
{
skiaImage.ReadPixels(pixmap, 0, 0);
}
writeableBitmap.Invalidate();
}
});
IDecodedImage <object> container = new DecodedImage <object>()
{
Image = writeableBitmap,
};
return(new DataResolverResult(container, resolvedData.LoadingResult, resolvedData.ImageInformation));
}
#endif
lock (_encodingLock)
{
using (var image = SKImage.FromBitmap(bitmap))
//using (var data = image.Encode(SKImageEncodeFormat.Png, 100)) //TODO disabled because of https://github.com/mono/SkiaSharp/issues/285
using (var data = image.Encode())
{
var stream = new MemoryStream();
data.SaveTo(stream);
stream.Position = 0;
return(new DataResolverResult(stream, resolvedData.LoadingResult, resolvedData.ImageInformation));
}
}
}
}
public async Task <DataResolverResult> Resolve(string identifier, TaskParameter parameters, CancellationToken token)
{
var source = parameters.Source;
if (!string.IsNullOrWhiteSpace(parameters.LoadingPlaceholderPath) && parameters.LoadingPlaceholderPath == identifier)
{
source = parameters.LoadingPlaceholderSource;
}
else if (!string.IsNullOrWhiteSpace(parameters.ErrorPlaceholderPath) && parameters.ErrorPlaceholderPath == identifier)
{
source = parameters.ErrorPlaceholderSource;
}
var resolvedData = await(Configuration.DataResolverFactory ?? new DataResolverFactory())
.GetResolver(identifier, source, parameters, Configuration)
.Resolve(identifier, parameters, token).ConfigureAwait(false);
if (resolvedData?.Stream == null)
{
throw new FileNotFoundException(identifier);
}
var svg = new SKSvg()
{
ThrowOnUnsupportedElement = false,
};
SKPicture picture;
if (ReplaceStringMap == null || ReplaceStringMap.Count == 0)
{
using (var svgStream = resolvedData.Stream)
{
picture = svg.Load(svgStream);
}
}
else
{
using (var svgStream = resolvedData.Stream)
using (var reader = new StreamReader(svgStream))
{
var inputString = await reader.ReadToEndAsync();
foreach (var map in ReplaceStringMap
.Where(v => v.Key.StartsWith("regex:", StringComparison.OrdinalIgnoreCase)))
{
inputString = Regex.Replace(inputString, map.Key.Substring(6), map.Value);
}
var builder = new StringBuilder(inputString);
foreach (var map in ReplaceStringMap
.Where(v => !v.Key.StartsWith("regex:", StringComparison.OrdinalIgnoreCase)))
{
builder.Replace(map.Key, map.Value);
}
using (var svgFinalStream = new MemoryStream(Encoding.UTF8.GetBytes(builder.ToString())))
{
picture = svg.Load(svgFinalStream);
}
}
}
double sizeX = VectorWidth;
double sizeY = VectorHeight;
if (UseDipUnits)
{
sizeX = VectorWidth.DpToPixels();
sizeY = VectorHeight.DpToPixels();
}
if (sizeX <= 0 && sizeY <= 0)
{
if (picture.CullRect.Width > 0)
{
sizeX = picture.CullRect.Width;
}
else
{
sizeX = 400;
}
if (picture.CullRect.Height > 0)
{
sizeY = picture.CullRect.Height;
}
else
{
sizeY = 400;
}
}
else if (sizeX > 0 && sizeY <= 0)
{
sizeY = (int)(sizeX / picture.CullRect.Width * picture.CullRect.Height);
}
else if (sizeX <= 0 && sizeY > 0)
{
sizeX = (int)(sizeY / picture.CullRect.Height * picture.CullRect.Width);
}
resolvedData.ImageInformation.SetType(ImageInformation.ImageType.SVG);
using (var bitmap = new SKBitmap(new SKImageInfo((int)sizeX, (int)sizeY)))
using (var canvas = new SKCanvas(bitmap))
using (var paint = new SKPaint())
{
canvas.Clear(SKColors.Transparent);
var scaleX = (float)sizeX / picture.CullRect.Width;
var scaleY = (float)sizeY / picture.CullRect.Height;
var matrix = SKMatrix.MakeScale(scaleX, scaleY);
canvas.DrawPicture(picture, ref matrix, paint);
canvas.Flush();
return(await Decode(picture, bitmap, resolvedData).ConfigureAwait(false));
}
}
public async Task <DataResolverResult> Resolve(string identifier, TaskParameter parameters, CancellationToken token)
{
ImageSource source = parameters.Source;
if (!string.IsNullOrWhiteSpace(parameters.LoadingPlaceholderPath) && parameters.LoadingPlaceholderPath == identifier)
{
source = parameters.LoadingPlaceholderSource;
}
else if (!string.IsNullOrWhiteSpace(parameters.ErrorPlaceholderPath) && parameters.ErrorPlaceholderPath == identifier)
{
source = parameters.ErrorPlaceholderSource;
}
var resolvedData = await(Configuration.DataResolverFactory ?? new DataResolverFactory())
.GetResolver(identifier, source, parameters, Configuration)
.Resolve(identifier, parameters, token).ConfigureAwait(false);
if (resolvedData?.Stream == null)
{
throw new FileNotFoundException(identifier);
}
var svg = new SKSvg()
{
ThrowOnUnsupportedElement = false,
};
SKPicture picture;
if (ReplaceStringMap == null || ReplaceStringMap.Count == 0)
{
using (var svgStream = resolvedData.Stream)
{
picture = svg.Load(svgStream);
}
}
else
{
using (var svgStream = resolvedData.Stream)
using (var reader = new StreamReader(svgStream))
{
var inputString = await reader.ReadToEndAsync();
foreach (var map in ReplaceStringMap
.Where(v => v.Key.StartsWith("regex:")))
{
inputString = Regex.Replace(inputString, map.Key.Substring(0, 6), map.Value);
}
var builder = new StringBuilder(inputString);
foreach (var map in ReplaceStringMap
.Where(v => !v.Key.StartsWith("regex:", StringComparison.OrdinalIgnoreCase)))
{
builder.Replace(map.Key, map.Value);
}
using (var svgFinalStream = new MemoryStream(Encoding.UTF8.GetBytes(builder.ToString())))
{
picture = svg.Load(svgFinalStream);
}
}
}
double sizeX = 0;
double sizeY = 0;
if (VectorWidth <= 0 && VectorHeight <= 0)
{
if (picture.CullRect.Width > 0)
{
sizeX = picture.CullRect.Width;
}
else
{
sizeX = 300;
}
if (picture.CullRect.Height > 0)
{
sizeY = picture.CullRect.Height;
}
else
{
sizeY = 300;
}
}
else if (VectorWidth > 0 && VectorHeight > 0)
{
sizeX = VectorWidth;
sizeY = VectorHeight;
}
else if (VectorWidth > 0)
{
sizeX = VectorWidth;
sizeY = (VectorWidth / picture.CullRect.Width) * picture.CullRect.Height;
}
else
{
sizeX = (VectorHeight / picture.CullRect.Height) * picture.CullRect.Width;
sizeY = VectorHeight;
}
if (UseDipUnits)
{
sizeX = sizeX.DpToPixels();
sizeY = sizeY.DpToPixels();
}
lock (_encodingLock)
{
using (var bitmap = new SKBitmap(new SKImageInfo((int)sizeX, (int)sizeY)))
//using (var bitmap = new SKBitmap((int)sizeX, (int)sizeY))
using (var canvas = new SKCanvas(bitmap))
using (var paint = new SKPaint())
{
canvas.Clear(SKColors.Transparent);
float scaleX = (float)sizeX / picture.CullRect.Width;
float scaleY = (float)sizeY / picture.CullRect.Height;
var matrix = SKMatrix.MakeScale(scaleX, scaleY);
canvas.DrawPicture(picture, ref matrix, paint);
canvas.Flush();
using (var image = SKImage.FromBitmap(bitmap))
//using (var data = image.Encode(SKImageEncodeFormat.Png, 100)) //TODO disabled because of https://github.com/mono/SkiaSharp/issues/285
using (var data = image.Encode())
{
var stream = new MemoryStream();
data.SaveTo(stream);
stream.Position = 0;
resolvedData.ImageInformation.SetType(ImageInformation.ImageType.SVG);
return(new DataResolverResult(stream, resolvedData.LoadingResult, resolvedData.ImageInformation));
}
}
}
}
public async Task <Tuple <Stream, LoadingResult, ImageInformation> > Resolve(string identifier, TaskParameter parameters, CancellationToken token)
{
ImageSource source = parameters.Source;
if (!string.IsNullOrWhiteSpace(parameters.LoadingPlaceholderPath) && parameters.LoadingPlaceholderPath == identifier)
{
source = parameters.LoadingPlaceholderSource;
}
else if (!string.IsNullOrWhiteSpace(parameters.ErrorPlaceholderPath) && parameters.ErrorPlaceholderPath == identifier)
{
source = parameters.ErrorPlaceholderSource;
}
var resolvedData = await(Configuration.DataResolverFactory ?? new DataResolverFactory())
.GetResolver(identifier, source, parameters, Configuration)
.Resolve(identifier, parameters, token).ConfigureAwait(false);
if (resolvedData?.Item1 == null)
{
throw new FileNotFoundException(identifier);
}
var svg = new SKSvg()
{
ThrowOnUnsupportedElement = false,
};
SKPicture picture;
using (var svgStream = resolvedData.Item1)
{
picture = svg.Load(resolvedData?.Item1);
}
float sizeX = 0;
float sizeY = 0;
if (VectorWidth == 0 && VectorHeight == 0)
{
if (picture.CullRect.Width > 0)
{
sizeX = picture.CullRect.Width;
}
else
{
sizeX = 300;
}
if (picture.CullRect.Height > 0)
{
sizeY = picture.CullRect.Height;
}
else
{
sizeY = 300;
}
}
else if (VectorWidth > 0 && VectorHeight > 0)
{
sizeX = VectorWidth;
sizeY = VectorHeight;
}
else if (VectorWidth > 0)
{
sizeX = VectorWidth;
sizeY = (VectorWidth / picture.CullRect.Width) * picture.CullRect.Height;
}
else
{
sizeX = (VectorHeight / picture.CullRect.Height) * picture.CullRect.Width;
sizeY = VectorHeight;
}
using (var bitmap = new SKBitmap((int)sizeX, (int)sizeY))
using (var canvas = new SKCanvas(bitmap))
using (var paint = new SKPaint())
{
canvas.Clear(SKColors.Transparent);
float scaleX = sizeX / picture.CullRect.Width;
float scaleY = sizeY / picture.CullRect.Height;
var matrix = SKMatrix.MakeScale(scaleX, scaleY);
canvas.DrawPicture(picture, ref matrix, paint);
canvas.Flush();
using (var image = SKImage.FromBitmap(bitmap))
using (var data = image.Encode(SKImageEncodeFormat.Png, 80))
{
var stream = new MemoryStream();
data.SaveTo(stream);
stream.Position = 0;
//var stream = data?.AsStream();
return(new Tuple <Stream, LoadingResult, ImageInformation>(stream, resolvedData.Item2, resolvedData.Item3));
}
}
}
