public bool Contains(Word word)
{
return base.InnerList.Contains(word);
}
public bool Contains(Word word)
{
return(base.InnerList.Contains(word));
}
/// <summary>
/// Processes formatting text.
/// </summary>
protected override void ProcessText()
{
Stack formatting = new Stack();
int pos = 0;
// Locate formatting tags
MatchCollection matches = _recognizer.Matches(RawText);
foreach (Match match in matches)
{
if (match.Index > pos)
{
string[] ss = Split(
RawText.Substring(pos, match.Index - pos));
// Collect formatting
Styles f = Styles.Regular;
object color = null;
foreach (FormatToken token in formatting)
{
f |= token.Format;
if (token.Format == Styles.Color)
{
color = token.Param;
}
}
foreach (string s in ss)
{
Word word = null;
if (color != null)
{
word = new StyledWord(s, f, (Color)color);
}
else
{
word = new StyledWord(s, f, Color.Empty);
}
InnerWords.Add(word);
}
// Advance pos
pos = match.Index;
}
if (match.Index == pos)
{
// Modify formatting
Styles f = Styles.Regular;
object param = null;
bool closing = match.Value.IndexOf("/") != -1;
string mval = match.Value.ToLower();
if (mval == "<b>" || mval == "</b>")
{
f = Styles.Bold;
}
else if (mval == "<i>" || mval == "</i>")
{
f = Styles.Italic;
}
else if (mval == "<u>" || mval == "</u>")
{
f = Styles.Underline;
}
else if (mval == "<sub>" || mval == "</sub>")
{
f = Styles.Sub;
}
else if (mval == "<sup>" || mval == "</sup>")
{
f = Styles.Sup;
}
else if (mval.IndexOf("color") != -1)
{
f = Styles.Color;
if (!closing)
{
int spos = mval.IndexOf("#");
string color = mval.Substring(spos + 1, 6);
param = Color.FromArgb(
int.Parse(color.Substring(0, 2), System.Globalization.NumberStyles.HexNumber),
int.Parse(color.Substring(2, 2), System.Globalization.NumberStyles.HexNumber),
int.Parse(color.Substring(4, 2), System.Globalization.NumberStyles.HexNumber));
}
}
// It it is opening tag, add it to the stack,
// otherwise - find the last corresponding opening
// tag and remove it from the stack.
if (!closing)
{
formatting.Push(new FormatToken(f, param));
}
else
{
Stack temp = new Stack();
while (formatting.Count > 0)
{
if ((formatting.Peek() as FormatToken).Format == f)
{
break;
}
temp.Push(formatting.Pop());
}
// Remove if found
if (formatting.Count > 0)
{
formatting.Pop();
}
// Return the remaining tokens
while (temp.Count > 0)
{
formatting.Push(temp.Pop());
}
}
// Advance pos
pos += match.Length;
continue;
}
throw new Exception("Styled text internal error.");
}
if (pos < RawText.Length)
{
string[] ss = Split(RawText.Substring(pos));
// Collect formatting
Styles f = Styles.Regular;
object color = null;
foreach (FormatToken token in formatting)
{
f |= token.Format;
if (token.Format == Styles.Color)
{
color = token.Param;
}
}
foreach (string s in ss)
{
Word word = null;
if (color != null)
{
word = new StyledWord(s, f, (Color)color);
}
else
{
word = new StyledWord(s, f, Color.Empty);
}
InnerWords.Add(word);
}
}
// Update the pure text
_plainText = "";
foreach (Word word in InnerWords)
{
_plainText += word.Value;
}
}
/// <summary>
/// Draws a previously laid-out text at a specified offset.
/// </summary>
public void Draw(float xOff, float yOff,
RenderTextCallback renderCallback, DrawTextHint hint)
{
if (GetHLines(_totalLines) == null)
{
throw new Exception("Draw invoked on a non-laid-out text.");
}
if (GetHLines(_totalLines).Count == 0)
{
return;
}
bool styled = (_text is StyledText);
bool is_LastWord = false;
// Original brush and font
System.Drawing.Brush brushOriginal = hint.Brush;
Font fontOriginal = hint.Font;
// We now have the starting line and the number
// of total lines to layout the text in. Go for it
int iword = 0;
for (int i = _startLine; i < _startLine + _totalLines; i++)
{
PointList hLine = GetHLines(_totalLines)[i] as PointList;
for (int j = 0; j < hLine.Count; j += 2)
{
PointF pt1 = hLine[j];
PointF pt2 = hLine[j + 1];
RectangleF rc = new RectangleF(
_bounds.X + xOff + pt1.X,
_bounds.Y + yOff + pt1.Y,
pt2.X - pt1.X, pt2.Y - pt1.Y);
bool newLine = false;
int newword = FitTextInRect(iword, rc, ref newLine);
if (newword > iword)
{
// Calculate the total width of the words
// which are about to be rendered, but skip
// the whitespaces at the front and the rear
int ifront = iword;
int irear = newword - 1;
/*DON'T SKIP WHITESPACES ( next 2 lines )
*
*/
while (ifront < newword && _text.Words[ifront].IsWhitespace)
{
ifront++;
}
while (irear >= ifront && _text.Words[irear].IsWhitespace)
{
irear--;
}
int w;
float total = 0;
for (w = ifront; w <= irear; w++)
{
total += _text.Words[w].Width;
}
// Adjust the left side of the destination
// rectangle according to the specified alignment
switch (_options.Alignment)
{
case StringAlignment.Near:
// Do nothing
break;
case StringAlignment.Center:
rc.X = rc.X + (rc.Width - total) / 2;
break;
case StringAlignment.Far:
rc.X = rc.Right - total;
break;
}
// Render the words in the range [ifront, irear]
for (w = ifront; w <= irear; w++)
{
Word word = _text.Words[w];
if (w == _text.Words.Count - 1)
{
is_LastWord = true;
}
else
{
is_LastWord = false;
}
if (!_fits && hint.AddEllipsis && styled)
{
if (i == _startLine + _totalLines - 1)
{
if (j == hLine.Count - 2)
{
if (w == irear)
{
// Append the last word with ellipsis
StyledText.StyledWord sword =
word as StyledText.StyledWord;
StyledText.StyledWord newWord = null;
int chars = sword.Value.Length;
float width = sword.Width;
do
{
newWord = new StyledText.StyledWord(
sword.Value.Substring(0, chars) + "...", sword.Format, sword.Color);
newWord.UpdateMeasures(hint.Graphics, hint.Font);
chars--;
}while (chars > 0 && newWord.Width > width);
word = newWord;
}
}
}
}
/*DON'T SKIP WHITESPACES ( next line )
*
*/
if (!word.IsLineBreak && !word.IsWhitespace)
{
if (styled)
{
// In case of styled text formatting,
// apply fonts and colors
StyledText.StyledWord sword =
word as StyledText.StyledWord;
hint.Font = sword.CreateFont(hint.Font);
hint.Brush = sword.CreateBrush(hint.Brush);
rc.Y += sword.YOffset;
}
// Add 10 to width and height becaus GDI+ stupid
// and clips the text
hint.IsLastLine = is_LastWord;
hint.CurrentWord = word;
renderCallback(word.Value, new RectangleF(
rc.X, rc.Y, word.Width + 10, rc.Height + 10), hint);
if (styled)
{
// Restore font and brush
StyledText.StyledWord sword =
word as StyledText.StyledWord;
sword.DisposeFont(hint.Font);
sword.DisposeBrush(hint.Brush);
hint.Font = fontOriginal;
hint.Brush = brushOriginal;
rc.Y -= sword.YOffset;
}
}
rc.X += _text.Words[w].Width;
}
iword = newword;
}
if (newLine)
{
break;
}
}
}
}
