/**
* Outputs the lines to the document. The output can be simulated.
* @param simulate <CODE>true</CODE> to simulate the writting to the document
* @return returns the result of the operation. It can be <CODE>NO_MORE_TEXT</CODE>
* and/or <CODE>NO_MORE_COLUMN</CODE>
* @throws DocumentException on error
*/
public int go(bool simulate)
{
bool dirty = false;
float ratio = spaceCharRatio;
Object[] currentValues = new Object[2];
PdfFont currentFont = null;
float lastBaseFactor = 0F;
currentValues[1] = lastBaseFactor;
PdfDocument pdf = null;
PdfContentByte graphics = null;
int localRunDirection = PdfWriter.RUN_DIRECTION_NO_BIDI;
if (runDirection != PdfWriter.RUN_DIRECTION_DEFAULT)
{
localRunDirection = runDirection;
}
if (text != null)
{
pdf = text.PdfDocument;
graphics = text.Duplicate;
}
else if (!simulate)
{
throw new Exception("ColumnText.go with simulate==false and text==null.");
}
if (!simulate)
{
if (ratio == GLOBAL_SPACE_CHAR_RATIO)
{
ratio = text.PdfWriter.SpaceCharRatio;
}
else if (ratio < 0.001f)
{
ratio = 0.001f;
}
}
float firstIndent = 0;
int status = 0;
if (rectangularWidth > 0)
{
for (;;)
{
firstIndent = (lastWasNewline ? indent : followingIndent);
if (rectangularWidth <= firstIndent + rightIndent)
{
status = NO_MORE_COLUMN;
if (bidiLine.isEmpty())
{
status |= NO_MORE_TEXT;
}
break;
}
if (bidiLine.isEmpty())
{
status = NO_MORE_TEXT;
break;
}
float yTemp = yLine;
PdfLine line = bidiLine.processLine(rectangularWidth - firstIndent - rightIndent, alignment, localRunDirection);
float maxSize = line.MaxSizeSimple;
currentLeading = fixedLeading + maxSize * multipliedLeading;
float[] xx = findLimitsTwoLines();
if (xx == null)
{
status = NO_MORE_COLUMN;
yLine = yTemp;
bidiLine.restore();
break;
}
float x1 = Math.Max(xx[0], xx[2]);
if (!simulate && !dirty)
{
text.beginText();
dirty = true;
}
if (!simulate)
{
currentValues[0] = currentFont;
text.setTextMatrix(x1 + (line.IsRTL ? rightIndent : firstIndent) + line.IndentLeft, yLine);
pdf.writeLineToContent(line, text, graphics, currentValues, ratio);
currentFont = (PdfFont)currentValues[0];
}
lastWasNewline = line.isNewlineSplit();
yLine -= line.isNewlineSplit() ? extraParagraphSpace : 0;
}
}
else
{
currentLeading = fixedLeading;
for (;;)
{
firstIndent = (lastWasNewline ? indent : followingIndent);
float yTemp = yLine;
float[] xx = findLimitsTwoLines();
if (xx == null)
{
status = NO_MORE_COLUMN;
if (bidiLine.isEmpty())
{
status |= NO_MORE_TEXT;
}
yLine = yTemp;
break;
}
if (bidiLine.isEmpty())
{
status = NO_MORE_TEXT;
yLine = yTemp;
break;
}
float x1 = Math.Max(xx[0], xx[2]);
float x2 = Math.Min(xx[1], xx[3]);
if (x2 - x1 <= firstIndent + rightIndent)
{
continue;
}
if (!simulate && !dirty)
{
text.beginText();
dirty = true;
}
PdfLine line = bidiLine.processLine(x2 - x1 - firstIndent - rightIndent, alignment, localRunDirection);
if (!simulate)
{
currentValues[0] = currentFont;
text.setTextMatrix(x1 + (line.IsRTL ? rightIndent : firstIndent) + line.IndentLeft, yLine);
pdf.writeLineToContent(line, text, graphics, currentValues, ratio);
currentFont = (PdfFont)currentValues[0];
}
lastWasNewline = line.isNewlineSplit();
yLine -= line.isNewlineSplit() ? extraParagraphSpace : 0;
}
}
if (dirty)
{
text.endText();
text.Add(graphics);
}
return(status);
}
