/// <summary>
/// Writes the specified image.
/// </summary>
/// <param name="x">The x-coordinate.</param>
/// <param name="y">The y-coordinate.</param>
/// <param name="width">The width of the image.</param>
/// <param name="height">The height of the image.</param>
/// <param name="image">The image.</param>
public void WriteImage(double x, double y, double width, double height, OxyImage image)
{
// http://www.w3.org/TR/SVG/shapes.html#ImageElement
this.WriteStartElement("image");
this.WriteAttributeString("x", x);
this.WriteAttributeString("y", y);
this.WriteAttributeString("width", width);
this.WriteAttributeString("height", height);
this.WriteAttributeString("preserveAspectRatio", "none");
var imageData = image.GetData();
var encodedImage = new StringBuilder();
encodedImage.Append("data:");
encodedImage.Append("image/png");
encodedImage.Append(";base64,");
encodedImage.Append(Convert.ToBase64String(imageData));
this.WriteAttributeString("xlink", "href", null, encodedImage.ToString());
this.WriteEndElement();
}
/// <summary>
/// Loads the image from the specified source.
/// </summary>
/// <param name="source">The image source.</param>
/// <returns>A <see cref="Image" />.</returns>
private Image GetImage(OxyImage source)
{
if (source == null)
{
return null;
}
if (!this.imagesInUse.Contains(source))
{
this.imagesInUse.Add(source);
}
Image src;
if (this.imageCache.TryGetValue(source, out src))
{
return src;
}
Image btm;
using (var ms = new MemoryStream(source.GetData()))
{
btm = Image.FromStream(ms);
}
this.imageCache.Add(source, btm);
return btm;
}
/// <summary>
/// Writes the specified image.
/// </summary>
/// <param name="x">The x-coordinate.</param>
/// <param name="y">The y-coordinate.</param>
/// <param name="width">The width of the image.</param>
/// <param name="height">The height of the image.</param>
/// <param name="image">The image.</param>
public void WriteImage(double x, double y, double width, double height, OxyImage image)
{
// http://www.w3.org/TR/SVG/shapes.html#ImageElement
this.WriteStartElement("image");
this.WriteAttributeString("x", x);
this.WriteAttributeString("y", y);
this.WriteAttributeString("width", width);
this.WriteAttributeString("height", height);
this.WriteAttributeString("preserveAspectRatio", "none");
var imageData = image.GetData();
var encodedImage = new StringBuilder();
encodedImage.Append("data:");
encodedImage.Append("image/png");
encodedImage.Append(";base64,");
encodedImage.Append(Convert.ToBase64String(imageData));
this.WriteAttributeString("xlink", "href", null, encodedImage.ToString());
this.WriteClipPathAttribute();
this.WriteEndElement();
}
