private static byte[] ToMetafile(this Identicon icon)
{
var iconBounds = icon.GetIconBounds();
using (var desktopGraphics = Graphics.FromHwnd(IntPtr.Zero))
{
var hdc = desktopGraphics.GetHdc();
try
{
using (var memoryStream = new MemoryStream())
{
using (var img = new Metafile(memoryStream, hdc,
new System.Drawing.Rectangle(0, 0, icon.Size, icon.Size), MetafileFrameUnit.Pixel,
EmfType.EmfPlusDual))
{
using (var graphics = Graphics.FromImage(img))
{
icon.Draw(graphics, iconBounds);
}
}
return(memoryStream.ToArray());
}
}
finally
{
desktopGraphics.ReleaseHdc(hdc);
}
}
}
private static string GenerateSvg(this Identicon icon, bool fragment)
{
var iconBounds = icon.GetIconBounds();
var renderer = new SvgRenderer(icon.Size, icon.Size);
icon.Draw(renderer, iconBounds);
return(renderer.ToSvg(fragment));
}
/// <summary>
/// Renders an <see cref="Identicon"/> as a WPF <see cref="Visual"/>.
/// </summary>
/// <param name="icon">The identicon to convert to a <see cref="Visual"/>.</param>
public static Visual ToVisual(this Identicon icon)
{
var visual = new DrawingVisual();
using (var context = visual.RenderOpen())
{
var iconBounds = icon.GetIconBounds();
icon.Draw(context, iconBounds);
}
return(visual);
}
private static byte[] GeneratePng(this Identicon icon)
{
var renderer = new PngRenderer(icon.Size, icon.Size);
var iconBounds = icon.GetIconBounds();
icon.Draw(renderer, iconBounds);
using (var memoryStream = new MemoryStream())
{
renderer.SavePng(memoryStream);
return(memoryStream.ToArray());
}
}
/// <summary>
/// Renders an <see cref="Identicon"/> to a GDI <see cref="Bitmap"/>.
/// </summary>
/// <param name="icon">The identicon to render.</param>
/// <remarks>
/// The caller should dispose the returned <see cref="Bitmap"/> once it does not
/// need it anymore.
/// </remarks>
public static Bitmap ToBitmap(this Identicon icon)
{
var iconBounds = icon.GetIconBounds();
var img = new Bitmap(icon.Size, icon.Size);
try
{
using (var g = Graphics.FromImage(img))
{
icon.Draw(g, iconBounds);
}
return(img);
}
catch
{
img.Dispose();
throw;
}
}