public TagOpenToken(int id, HtmlNode node, TextVisualProperties properties, int parentID)
: base(id)
{
Name = node.Name;
TextProperties = properties;
ParentID = parentID;
}
public static TextVisualProperties Update(this TextVisualProperties properties, XElement element, CSS css)
{
string localName = element.Name.LocalName;
string[] selectors = { localName };
return(properties.UpdateCss(css, selectors));
}
private TagOpenToken(int id, string name, TextVisualProperties properties, int parentId)
: base(id)
{
Name = name;
TextProperties = properties;
ParentID = parentId;
}
public TagOpenToken(int id, XElement element, TextVisualProperties properties, int parentID)
: base(id)
{
Name = element.Name.LocalName;
TextProperties = properties;
ParentID = parentID;
}
public override IEnumerable<TokenBase> GetTokens()
{
var propertiesStack = new Stack<TextVisualProperties>();
var item = new TextVisualProperties();
propertiesStack.Push(item);
var top = new TokenIndex();
return _root.Elements(_ns + "body").SelectMany(b => ParseNodes(b, propertiesStack, top, 0));
}
public static TextVisualProperties Update(this TextVisualProperties properties, HtmlNode element, CSS css)
{
var list = new List <string>
{
element.Name
};
string attributeValue = element.GetAttributeValue("class", string.Empty);
if (!string.IsNullOrEmpty(attributeValue))
{
list.Add(element.Name + "." + attributeValue);
list.Add("." + attributeValue);
}
return(properties.UpdateCss(css, list.ToArray()));
}
public override IEnumerable<TokenBase> GetTokens()
{
var propertiesStack = new Stack<TextVisualProperties>();
var item = new TextVisualProperties();
propertiesStack.Push(item);
var top = new TokenIndex();
foreach (EpubSpineItem spineItem in GetSpineItems())
{
yield return new NewPageToken(top.Index++);
AddAnchor(top, (_opfPath) + spineItem.Path);
foreach (TokenBase token in ParseSpineItem(spineItem, propertiesStack, top))
{
yield return token;
}
}
}
public void AddText(string text, TextVisualProperties properties, double fontSize, Size size, string part = null, int tokenID = -1)
{
part = part ?? string.Empty;
Inlines.Add(new TextElement
{
Text = text,
Width = size.Width,
Height = size.Height,
Bold = properties.Bold,
Italic = properties.Italic,
Size = fontSize,
SupOption = properties.SupOption,
SubOption = properties.SubOption,
Part = part,
LinkID = properties.LinkID,
TokenID = tokenID
});
}
public override IEnumerable<TokenBase> GetTokens()
{
_css = new CSS();
var html = new HtmlDocument
{
OptionOutputAsXml = true,
OptionReadEncoding = false
};
html.Load(_reader);
var root = html.DocumentNode.SelectSingleNode("//body");
var cssNode = html.DocumentNode.SelectSingleNode("//style");
if (cssNode != null)
{
_css.Analyze(cssNode.InnerText);
}
var stack = new Stack<TextVisualProperties>();
var item = new TextVisualProperties();
stack.Push(item);
return ParseTokens(root, stack, new TokenIndex());
}
public override IEnumerable<TokenBase> GetTokens()
{
var top = new TokenIndex();
string line;
while ((line = _reader.ReadLine()) != null)
{
if(string.IsNullOrEmpty(line))
continue;
var p = new XElement("p");
var property = new TextVisualProperties
{
TextIndent = 32.0,
Inline = false
};
yield return new TagOpenToken(top.Index++, p, property, -1);
foreach (TokenBase baseToken in ParseText(line, top))
yield return baseToken;
yield return new TagCloseToken(top.Index++, -1);
}
}
public void ApplyProperties(string[] selectors, TextVisualProperties properties)
{
foreach (CssRule rule in Rules.Where(r => r.Selectors.Any(selectors.Contains)))
{
string val;
if (rule.TryGetValueForRule("font-weight", out val))
{
properties.Bold = val == "bold";
}
if (rule.TryGetValueForRule("font-style", out val))
{
properties.Italic = val == "italic";
}
if (rule.TryGetValueForRule("display", out val))
{
properties.Inline = val == "inline";
}
if (rule.TryGetValueForRule("vertical-align", out val))
{
properties.SupOption = val == "super";
}
if (rule.TryGetValueForRule("vertical-align", out val))
{
properties.SubOption = val == "sub";
}
if (rule.TryGetValueForRule("font-size", out val))
{
double size;
FontSizeType type;
if (TryParseFontSize(val, out size, out type))
{
properties.FontSize = size;
properties.FontSizeType = type;
}
}
if (rule.TryGetValueForRule("text-align", out val) && (val != "inherit"))
{
properties.TextAlign = val;
}
if (rule.TryGetValueForRule("margin", out val))
{
double left;
double right;
double bottom;
ParseMargin(val, out left, out right, out bottom);
properties.MarginLeft = left;
properties.MarginRight = right;
properties.MarginBottom = bottom;
}
if (rule.TryGetValueForRule("margin-left", out val))
{
properties.MarginLeft = ParseMarginValue(val);
}
if (rule.TryGetValueForRule("margin-right", out val))
{
properties.MarginRight = ParseMarginValue(val);
}
if (rule.TryGetValueForRule("margin-bottom", out val))
{
properties.MarginBottom = ParseMarginValue(val);
}
if (rule.TryGetValueForRule("text-indent", out val))
{
properties.TextIndent = ParseMarginValue(val);
}
}
}
private void LeaveMargin(TextVisualProperties properties)
{
_marginLeft -= properties.MarginLeft;
_marginRight -= properties.MarginRight;
}
private double GetTextWidth(string text, TextVisualProperties properties, double size)
{
return text.Aggregate(0.0, (s, c) => s + _helper.GetSize(c, size, properties.Bold, properties.Italic).Width);
}
private void EnterMargin(TextVisualProperties properties)
{
_marginLeft += properties.MarginLeft;
_marginRight += properties.MarginRight;
}
private double GetTextWidth(string text, bool separator, TextVisualProperties properties)
{
if (separator)
text = " " + text;
double size = _fontSize*(properties.SubOption || properties.SupOption ? 0.5 : 1.0);
var width = GetTextWidth(text, properties, size);
return width;
}
private Size GetTextSize(string text, TextVisualProperties properties)
{
return new Size(
GetTextWidth(text, false, properties),
GetTextHeight(text, properties.Bold, properties.Italic));
}
public void ApplyProperties(string[] selectors, TextVisualProperties properties)
{
foreach (CssRule rule in Rules.Where(r => r.Selectors.Any(selectors.Contains)))
{
string val;
if (rule.TryGetValueForRule("font-weight", out val))
{
properties.Bold = val == "bold";
}
if (rule.TryGetValueForRule("font-style", out val))
{
properties.Italic = val == "italic";
}
if (rule.TryGetValueForRule("display", out val))
{
properties.Inline = val == "inline";
}
if (rule.TryGetValueForRule("vertical-align", out val))
{
properties.SupOption = val == "super";
}
if (rule.TryGetValueForRule("vertical-align", out val))
{
properties.SubOption = val == "sub";
}
if (rule.TryGetValueForRule("font-size", out val))
{
double size;
FontSizeType type;
if (TryParseFontSize(val, out size, out type))
{
properties.FontSize = size;
properties.FontSizeType = type;
}
}
if (rule.TryGetValueForRule("text-align", out val) && (val != "inherit"))
{
properties.TextAlign = val;
}
if (rule.TryGetValueForRule("margin", out val))
{
double left;
double right;
double bottom;
ParseMargin(val, out left, out right, out bottom);
properties.MarginLeft = left;
properties.MarginRight = right;
properties.MarginBottom = bottom;
}
if (rule.TryGetValueForRule("margin-left", out val))
{
properties.MarginLeft = ParseMarginValue(val);
}
if (rule.TryGetValueForRule("margin-right", out val))
{
properties.MarginRight = ParseMarginValue(val);
}
if (rule.TryGetValueForRule("margin-bottom", out val))
{
properties.MarginBottom = ParseMarginValue(val);
}
if (rule.TryGetValueForRule("text-indent", out val))
{
properties.TextIndent = ParseMarginValue(val);
}
}
}
private static TextVisualProperties UpdateCss(this TextVisualProperties properties, CSS css, string[] selectors)
{
css.ApplyProperties(selectors, properties);
return(properties);
}
private static void ProcessLinks(TextVisualProperties properties, XElement xelement)
{
properties.LinkID = string.Empty;
XAttribute attribute = xelement.Attributes().FirstOrDefault(t => (t.Name.LocalName == "href"));
string str = ((attribute != null) ? attribute.Value : string.Empty).TrimStart('#');
if (!string.IsNullOrEmpty(str))
{
properties.LinkID = str;
}
}
