private void SetImgText(string htmlFragment)
{
if (htmlFragment == null || htmlFragment.Length == 0)
{
return;
}
Paragraph paragraph;
if (this.Blocks.Count == 0 ||
(paragraph = this.Blocks[this.Blocks.Count - 1] as Paragraph) == null)
{
paragraph = new Paragraph();
this.Blocks.Add(paragraph);
}
var nextOffset = 0;
var regEx = new Regex(@"(\[img=(?<imgname>.*?)\](?<imgtxt>.*?)\[/img\])", RegexOptions.IgnoreCase | RegexOptions.Singleline);
foreach (Match match in regEx.Matches(htmlFragment))
{
if (match.Index == nextOffset)
{
nextOffset = match.Index + match.Length;
var run = new Run {
Text = "[此处有图片]", Foreground = new SolidColorBrush(Color.FromArgb(255, 150, 230, 230))
};
var link = new Hyperlink {
};
link.Click += new RoutedEventHandler((sender, e) =>
{
Navi.NavigationTo("/ImageView.xaml?url=" + HttpUtility.UrlEncode(match.Groups["imgtxt"].Value));
});
link.Inlines.Add(run);
paragraph.Inlines.Add(link);
}
else if (match.Index > nextOffset)
{
this.SetImgText(htmlFragment.Substring(nextOffset, match.Index - nextOffset));
nextOffset = match.Index + match.Length;
var run = new Run {
Text = "[此处有图片]", Foreground = new SolidColorBrush(Color.FromArgb(255, 150, 230, 230))
};
var link = new Hyperlink {
};
link.Click += new RoutedEventHandler((sender, e) =>
{
Navi.NavigationTo("/ImageView.xaml?url=" + HttpUtility.UrlEncode(match.Groups["imgtxt"].Value));
});
link.Inlines.Add(run);
paragraph.Inlines.Add(link);
}
}
if (nextOffset < htmlFragment.Length)
{
paragraph.Inlines.Add(new Run {
Text = HtmlHelp.NoTag(htmlFragment.Substring(nextOffset))
});
}
}
