public static TokenBase Load(BinaryReader reader, int id)
{
var type = (TokenType)reader.ReadByte();
switch (type)
{
case TokenType.TagOpenToken:
return(TagOpenToken.Load(reader, id));
case TokenType.TagCloseToken:
return(TagCloseToken.Load(reader, id));
case TokenType.TextToken:
return(TextToken.Load(reader, id));
case TokenType.WhitespaceToken:
return(new WhitespaceToken(id));
case TokenType.NewPageToken:
return(new NewPageToken(id));
case TokenType.PictureToken:
return(PictureToken.Load(reader, id));
default:
return(null);
}
}
private void CreateLine(TextToken token)
{
CreateEmptyLine(token);
string text = token.Text;
_block.UpdateHeight(GetTextHeight(text));
_textWidth = GetTextWidth(text, false, _lastOpenTag.TextProperties);
_block.AddText(
text,
_lastOpenTag.TextProperties,
_fontSize,
GetTextSize(text, _lastOpenTag.TextProperties),
token.Part,
token.ID);
}
private void AppendToLine(TextToken token, double textWidth)
{
string text = token.Text;
if (string.IsNullOrEmpty(text))
return;
_block = _block ?? new TextTokenBlock
{
TextAlign = _lastOpenTag.TextProperties.TextAlign,
MarginLeft = _marginLeft,
MarginRight = _marginRight,
FirstTokenID = _firstTokenID,
TextIndent = _textIndent
};
_block.LastTokenID = token.ID;
_block.UpdateHeight(GetTextHeight(text));
if (_separator)
{
TextVisualProperties properties = _lastOpenTag.TextProperties.Clone();
var inlineItem = _block.Inlines.OfType<TextElement>().LastOrDefault();
if (inlineItem != null && string.IsNullOrEmpty(inlineItem.LinkID))
properties.LinkID = string.Empty;
_block.AddText(" ", properties, _fontSize, GetTextSize(" ", properties));
}
_block.AddText(text, _lastOpenTag.TextProperties, _fontSize, GetTextSize(text, _lastOpenTag.TextProperties), token.Part, token.ID);
_textWidth += textWidth;
}
private bool AppendTextToken(TextToken textToken, string lastText, int stopTokenID, string stopText, ref bool firstText)
{
bool flag = false;
if (textToken.ID == stopTokenID && !string.IsNullOrEmpty(stopText))
{
textToken = new TextToken(stopTokenID, stopText + "-") {Part = stopText};
flag = true;
}
if (firstText && !string.IsNullOrEmpty(lastText) && textToken.Text.StartsWith(lastText))
{
string text = textToken.Text.Remove(0, lastText.Length);
if (text.StartsWith("-"))
text = text.Remove(0, 1);
textToken = new TextToken(textToken.ID, text);
}
AppendToLine(textToken);
firstText = false;
return flag;
}
private void AppendToLine(TextToken token)
{
if (_separator && (_block == null || _block.Inlines.All(t => !(t is TextElement))))
_separator = false;
double width = GetTextWidth(token.Text, _separator, _lastOpenTag.TextProperties);
if (CanAddText(width))
{
AppendToLine(token, width);
}
else
{
string[] partsOfWord = _hypher.GetPartsOfWord(token.Text, _hyphenation);
if (partsOfWord.Length > 1)
{
double textWidth = 0.0;
string str = string.Empty;
foreach (string part in partsOfWord)
{
string partWithSeparator = part;
if (!partWithSeparator.EndsWith("-"))
partWithSeparator = partWithSeparator + "-";
if (CanAddText(textWidth + GetTextWidth(partWithSeparator, _separator, _lastOpenTag.TextProperties)))
{
str = str + part;
textWidth += GetTextWidth(part, _separator, _lastOpenTag.TextProperties);
}
else
break;
}
if (!string.IsNullOrEmpty(str))
{
string partWithSeparator = str;
if (!partWithSeparator.EndsWith("-"))
partWithSeparator = partWithSeparator + "-";
AppendToLine(new TextToken(token.ID, partWithSeparator)
{
Part = str
}, textWidth);
string rightPart = token.Text.Remove(0, str.Length);
if (rightPart.StartsWith("-"))
rightPart = rightPart.Remove(0, 1);
token = new TextToken(token.ID, rightPart);
CreateEmptyLine(token);
AppendToLine(token);
return;
}
}
CreateLine(token);
}
_separator = false;
}
private bool CheckLastWord(BookTokenIterator bookTokenIterator, string query, out TextToken result)
{
result = null;
while (bookTokenIterator.MoveNext())
{
var textToken = bookTokenIterator.Current as TextToken;
if (textToken == null)
continue;
if (textToken.Text.StartsWith(query, StringComparison.InvariantCultureIgnoreCase))
{
result = textToken;
return true;
}
return false;
}
return false;
}