public void ParseTag(HTMLchunk chunk, AElement atom)
{
if (!chunk.Closure || chunk.EndClosure)
{
// create the tag and add it to the list of open tags.
var tag = new OpenTag(chunk);
_openTags.Add(tag);
// parse the tag (which will update the StyleParser's current style
ParseTag(tag, atom);
// if the style has changed and atom is not null, set the atom's style to the current style.
if (atom != null)
{
atom.Style = Style;
}
// if this is a self-closing tag (<br/>) close it!
if (chunk.EndClosure)
{
CloseOneTag(chunk);
}
}
else
{
CloseOneTag(chunk);
}
}
public void InterpretHREF(HTMLchunk chunk, AElement atom)
{
if (chunk.EndClosure)
{
} // solo anchor elements are meaningless.
if (!chunk.Closure)
{
// opening a hyperlink!
RecalculateStyle();
var tag = new OpenTag(chunk);
_openTags.Add(tag);
ParseTag(tag, atom);
}
else
{
RecalculateStyle(); // closing a hyperlink.
}
}
private void ParseTag(OpenTag tag, AElement atom = null)
{
switch (tag.Tag)
{
case "b": Style.IsBold = true; break;
case "i": Style.IsItalic = true; break;
case "u": Style.IsUnderlined = true; break;
case "outline": Style.IsOutlined = true; break;
case "big": Style.Font = _provider.GetUnicodeFont((int)Fonts.UnicodeBig); break;
case "basefont":
case "medium": Style.Font = _provider.GetUnicodeFont((int)Fonts.UnicodeMedium); break;
case "small": Style.Font = _provider.GetUnicodeFont((int)Fonts.UnicodeSmall); break;
case "left": if (atom != null && atom is BlockElement)
{
(atom as BlockElement).Alignment = Alignments.Left;
}
break;
case "center": if (atom != null && atom is BlockElement)
{
(atom as BlockElement).Alignment = Alignments.Center;
}
break;
case "right": if (atom != null && atom is BlockElement)
{
(atom as BlockElement).Alignment = Alignments.Right;
}
break;
}
foreach (DictionaryEntry param in tag.Params)
{
// get key and value for this tag param
var key = param.Key.ToString();
var value = param.Value.ToString();
if (value.StartsWith("0x"))
{
value = Utility.ToInt32(value).ToString();
}
// trim trailing forward slash.
if (value.EndsWith("/"))
{
value = value.Substring(0, value.Length - 1);
}
switch (key)
{
case "href":
// href paramater can only be used on 'anchor' tags.
if (tag.Tag == "a")
{
Style.HREF = value;
}
break;
case "color":
case "hovercolor":
case "activecolor":
// get the color!
var color = value;
Color?c = null;
if (color[0] == '#')
{
color = color.Substring(1);
if (color.Length == 3 || color.Length == 6)
{
c = Utility.ColorFromHexString(color);
}
}
else
{
c = Utility.ColorFromString(color); // try to parse color by name
}
if (c.HasValue)
{
if (key == "color")
{
Style.Color = c.Value;
}
if (tag.Tag == "a")
{
// a tag colors are override, they are rendered white and then hued with a websafe hue.
switch (key)
{
case "color": Style.ColorHue = _provider.GetWebSafeHue(c.Value); break;
case "hovercolor": Style.HoverColorHue = _provider.GetWebSafeHue(c.Value); break;
case "activecolor": Style.ActiveColorHue = _provider.GetWebSafeHue(c.Value); break;
default: Utils.Warning($"Only anchor <a> tags can have attribute {key}."); break;
}
}
}
else
{
Utils.Warning($"Improperly formatted color: {color}");
}
break;
case "src":
case "hoversrc":
case "activesrc":
if (atom is ImageElement)
{
switch (key)
{
case "src": (atom as ImageElement).ImgSrc = int.Parse(value); break;
case "hoversrc": (atom as ImageElement).ImgSrcOver = int.Parse(value); break;
case "activesrc": (atom as ImageElement).ImgSrcDown = int.Parse(value); break;
}
break;
}
Utils.Warning($"{key} param encountered within {tag.Tag} tag which does not use this param.");
break;
case "width":
{
if (atom is ImageElement || atom is BlockElement)
{
atom.Width = int.Parse(value);
}
else
{
Utils.Warning($"width param encountered within {tag.Tag} which does not use this param.");
}
}
break;
case "height":
{
if (atom is ImageElement || atom is BlockElement)
{
atom.Height = int.Parse(value);
}
else
{
Utils.Warning($"width param encountered within {tag.Tag} which does not use this param.");
}
}
break;
case "style": ParseStyle(value); break;
default: Utils.Warning($"Unknown parameter:{key}"); break;
}
}
}
