public static FlowDocument ConvertToFlowDocument(string evml, out Hyperlink[] links, FontFamily font, Brush background, double base_font_size = 12)
{
HtmlDocument doc = new HtmlDocument();
FlowDocument ret = new FlowDocument();
List <Hyperlink> linklist = new List <Hyperlink>();
ret.FontFamily = font;
ret.Background = background;
doc.LoadHtml("<html><body>" + evml + "</body></html>");
var body = doc.DocumentNode.SelectSingleNode("//body");
Paragraph paragraph = new Paragraph();
ret.Blocks.Add(paragraph);
double fontsizemul = base_font_size / 12.0;
StyleOptions base_style = new StyleOptions()
{
Color = Colors.White,
FontWeight = FontWeights.Normal,
FontStyle = FontStyles.Normal,
TextDecoration = null,
FontSize = 12,
FontSizeMultiplier = fontsizemul
};
base_style.Apply(paragraph);
AddFlowNode(body, doc, paragraph.Inlines, linklist, base_style);
links = linklist.ToArray();
return(ret);
}
private static void AddFlowNode(HtmlNode node, HtmlDocument doc, InlineCollection items, List <Hyperlink> linklist, StyleOptions styles)
{
foreach (HtmlNode i in node.ChildNodes)
{
switch (i.NodeType)
{
case HtmlNodeType.Text:
items.Add((Inline)styles.Apply(new Run(i.InnerHtml)));
continue;
case HtmlNodeType.Element:
break;
default:
continue;
}
switch (i.Name)
{
case "font":
AddFlowNode(i, doc, items, linklist, new StyleOptions(styles)
{
Color = ParseColorValue(i.GetAttributeValue("color", ""), styles.Color),
FontSize = i.GetAttributeValue("size", 12)
});
break;
case "b":
AddFlowNode(i, doc, items, linklist, new StyleOptions(styles)
{
FontWeight = FontWeights.Bold
});
break;
case "u":
AddFlowNode(i, doc, items, linklist, new StyleOptions(styles)
{
TextDecoration = TextDecorations.Underline
});
break;
case "i":
AddFlowNode(i, doc, items, linklist, new StyleOptions(styles)
{
FontStyle = FontStyles.Italic
});
break;
case "br":
items.Add(new LineBreak());
break;
case "a":
{
var linkstyle = new StyleOptions(styles)
{
TextDecoration = TextDecorations.Underline
};
Hyperlink link = (Hyperlink)linkstyle.Apply(new Hyperlink());
link.NavigateUri = new Uri(i.GetAttributeValue("href", ""), UriKind.RelativeOrAbsolute);
items.Add(link);
linklist.Add(link);
AddFlowNode(i, doc, link.Inlines, linklist, linkstyle);
break;
}
default:
AddFlowNode(i, doc, items, linklist, styles);
break;
}
}
}
