/// <summary>Converts a Visual to an ImageSource</summary>
/// <param name="surface">The surface.</param>
/// <param name="width">The width.</param>
/// <param name="height">The height.</param>
/// <param name="format">The format.</param>
/// <returns></returns>
public static ImageSource ToImageSource(this Visual surface, int width, int height, RenderedImageFormat format)
{
if (surface == null) return null;
var element = surface as FrameworkElement;
if (element != null)
{
element.Height = 96;
element.Width = 96;
element.Arrange(new Rect(0d, 0d, 96d, 96d));
}
var renderBitmap = new RenderTargetBitmap(width, height, 96d, 96d, PixelFormats.Pbgra32);
renderBitmap.Render(surface);
switch (format)
{
case RenderedImageFormat.Png:
var pngEncoder = new PngBitmapEncoder();
pngEncoder.Frames.Add(BitmapFrame.Create(renderBitmap));
return pngEncoder.Frames[0];
case RenderedImageFormat.Jpeg:
var jpegEncoder = new JpegBitmapEncoder();
jpegEncoder.Frames.Add(BitmapFrame.Create(renderBitmap));
return jpegEncoder.Frames[0];
case RenderedImageFormat.Tiff:
var tiffEncoder = new TiffBitmapEncoder();
tiffEncoder.Frames.Add(BitmapFrame.Create(renderBitmap));
return tiffEncoder.Frames[0];
case RenderedImageFormat.Bmp:
var bmpEncoder = new BmpBitmapEncoder();
bmpEncoder.Frames.Add(BitmapFrame.Create(renderBitmap));
return bmpEncoder.Frames[0];
case RenderedImageFormat.Gif:
var gifEncoder = new GifBitmapEncoder();
gifEncoder.Frames.Add(BitmapFrame.Create(renderBitmap));
return gifEncoder.Frames[0];
}
return null;
}
/// <summary>Converts a Visual to an ImageSource</summary>
/// <param name="surface">The surface.</param>
/// <param name="width">The width.</param>
/// <param name="height">The height.</param>
/// <param name="format">The format.</param>
/// <returns></returns>
public static ImageSource ToImageSource(this Visual surface, int width, int height, RenderedImageFormat format)
{
if (surface == null)
{
return(null);
}
var element = surface as FrameworkElement;
if (element != null)
{
element.Height = 96;
element.Width = 96;
element.Arrange(new Rect(0d, 0d, 96d, 96d));
}
var renderBitmap = new RenderTargetBitmap(width, height, 96d, 96d, PixelFormats.Pbgra32);
renderBitmap.Render(surface);
switch (format)
{
case RenderedImageFormat.Png:
var pngEncoder = new PngBitmapEncoder();
pngEncoder.Frames.Add(BitmapFrame.Create(renderBitmap));
return(pngEncoder.Frames[0]);
case RenderedImageFormat.Jpeg:
var jpegEncoder = new JpegBitmapEncoder();
jpegEncoder.Frames.Add(BitmapFrame.Create(renderBitmap));
return(jpegEncoder.Frames[0]);
case RenderedImageFormat.Tiff:
var tiffEncoder = new TiffBitmapEncoder();
tiffEncoder.Frames.Add(BitmapFrame.Create(renderBitmap));
return(tiffEncoder.Frames[0]);
case RenderedImageFormat.Bmp:
var bmpEncoder = new BmpBitmapEncoder();
bmpEncoder.Frames.Add(BitmapFrame.Create(renderBitmap));
return(bmpEncoder.Frames[0]);
case RenderedImageFormat.Gif:
var gifEncoder = new GifBitmapEncoder();
gifEncoder.Frames.Add(BitmapFrame.Create(renderBitmap));
return(gifEncoder.Frames[0]);
}
return(null);
}
