private int FloatingLayout(List <IElement> floatingElements, bool simulate)
{
int status = ColumnText.NO_MORE_TEXT;
float minYLine = yLine;
float leftWidth = 0;
float rightWidth = 0;
ColumnText currentCompositeColumn = compositeColumn;
if (simulate)
{
currentCompositeColumn = ColumnText.Duplicate(compositeColumn);
}
while (floatingElements.Count > 0)
{
IElement nextElement = floatingElements[0];
floatingElements.RemoveAt(0);
if (nextElement is PdfDiv)
{
PdfDiv floatingElement = (PdfDiv)nextElement;
status = floatingElement.Layout(compositeColumn.Canvas, useAscender, true, floatLeftX, minY, floatRightX, yLine);
if ((status & ColumnText.NO_MORE_TEXT) == 0)
{
yLine = minYLine;
floatLeftX = leftX;
floatRightX = rightX;
status = floatingElement.Layout(compositeColumn.Canvas, useAscender, true, floatLeftX, minY, floatRightX, yLine);
if ((status & ColumnText.NO_MORE_TEXT) == 0)
{
floatingElements.Insert(0, floatingElement);
break;
}
}
if (floatingElement.Float == PdfDiv.FloatType.LEFT)
{
status = floatingElement.Layout(compositeColumn.Canvas, useAscender, simulate, floatLeftX, minY, floatRightX, yLine);
floatLeftX += floatingElement.getActualWidth();
leftWidth += floatingElement.getActualWidth();
}
else if (floatingElement.Float == PdfDiv.FloatType.RIGHT)
{
status = floatingElement.Layout(compositeColumn.Canvas, useAscender, simulate, floatRightX - floatingElement.getActualWidth() - 0.01f, minY, floatRightX, yLine);
floatRightX -= floatingElement.getActualWidth();
rightWidth += floatingElement.getActualWidth();
}
minYLine = Math.Min(minYLine, yLine - floatingElement.getActualHeight());
}
else
{
if (nextElement is ISpaceable)
{
yLine -= ((ISpaceable)nextElement).SpacingBefore;
}
if (simulate)
{
if (nextElement is PdfPTable)
{
currentCompositeColumn.AddElement(new PdfPTable((PdfPTable)nextElement));
}
else
{
currentCompositeColumn.AddElement(nextElement);
}
}
else
{
currentCompositeColumn.AddElement(nextElement);
}
if (yLine > minYLine)
{
currentCompositeColumn.SetSimpleColumn(floatLeftX, yLine, floatRightX, minYLine);
}
else
{
currentCompositeColumn.SetSimpleColumn(floatLeftX, yLine, floatRightX, minY);
}
currentCompositeColumn.FilledWidth = 0;
status = currentCompositeColumn.Go(simulate);
if (yLine > minYLine && (floatLeftX > leftX || floatRightX < rightX) && (status & ColumnText.NO_MORE_TEXT) == 0)
{
yLine = minYLine;
floatLeftX = leftX;
floatRightX = rightX;
if (leftWidth != 0 && rightWidth != 0)
{
filledWidth = rightX - leftX;
}
else
{
if (leftWidth > filledWidth)
{
filledWidth = leftWidth;
}
if (rightWidth > filledWidth)
{
filledWidth = rightWidth;
}
}
leftWidth = 0;
rightWidth = 0;
if (simulate && nextElement is PdfPTable)
{
currentCompositeColumn.AddElement(new PdfPTable((PdfPTable)nextElement));
}
currentCompositeColumn.SetSimpleColumn(floatLeftX, yLine, floatRightX, minY);
status = currentCompositeColumn.Go(simulate);
minYLine = currentCompositeColumn.YLine + currentCompositeColumn.Descender;
yLine = minYLine;
if (compositeColumn.FilledWidth > filledWidth)
{
filledWidth = compositeColumn.FilledWidth;
}
}
else
{
if (rightWidth > 0)
{
rightWidth += currentCompositeColumn.FilledWidth;
}
else if (leftWidth > 0)
{
leftWidth += currentCompositeColumn.FilledWidth;
}
else if (currentCompositeColumn.FilledWidth > filledWidth)
{
filledWidth = currentCompositeColumn.FilledWidth;
}
minYLine = Math.Min(currentCompositeColumn.YLine + currentCompositeColumn.Descender, minYLine);
yLine = currentCompositeColumn.YLine + currentCompositeColumn.Descender;
}
if ((status & ColumnText.NO_MORE_TEXT) == 0)
{
if (!simulate)
{
floatingElements.InsertRange(0, currentCompositeColumn.CompositeElements);
currentCompositeColumn.CompositeElements.Clear();
}
else
{
floatingElements.Insert(0, nextElement);
currentCompositeColumn.SetText(null);
}
break;
}
else
{
currentCompositeColumn.SetText(null);
}
}
}
if (leftWidth != 0 && rightWidth != 0)
{
filledWidth = rightX - leftX;
}
else
{
if (leftWidth > filledWidth)
{
filledWidth = leftWidth;
}
if (rightWidth > filledWidth)
{
filledWidth = rightWidth;
}
}
yLine = minYLine;
floatLeftX = leftX;
floatRightX = rightX;
return(status);
}
private int FloatingLayout(List <IElement> floatingElements, bool simulate)
{
int status = ColumnText.NO_MORE_TEXT;
float minYLine = yLine;
float leftWidth = 0;
float rightWidth = 0;
ColumnText currentCompositeColumn = compositeColumn;
if (simulate)
{
currentCompositeColumn = ColumnText.Duplicate(compositeColumn);
}
bool ignoreSpacingBefore = maxY == yLine;
while (floatingElements.Count > 0)
{
IElement nextElement = floatingElements[0];
floatingElements.RemoveAt(0);
if (nextElement is PdfDiv)
{
PdfDiv floatingElement = (PdfDiv)nextElement;
status = floatingElement.Layout(compositeColumn.Canvas, useAscender, true, floatLeftX, minY, floatRightX, yLine);
if ((status & ColumnText.NO_MORE_TEXT) == 0)
{
yLine = minYLine;
floatLeftX = leftX;
floatRightX = rightX;
status = floatingElement.Layout(compositeColumn.Canvas, useAscender, true, floatLeftX, minY, floatRightX, yLine);
if ((status & ColumnText.NO_MORE_TEXT) == 0)
{
floatingElements.Insert(0, floatingElement);
break;
}
}
if (floatingElement.Float == PdfDiv.FloatType.LEFT)
{
status = floatingElement.Layout(compositeColumn.Canvas, useAscender, simulate, floatLeftX, minY, floatRightX, yLine);
floatLeftX += floatingElement.getActualWidth();
leftWidth += floatingElement.getActualWidth();
}
else if (floatingElement.Float == PdfDiv.FloatType.RIGHT)
{
status = floatingElement.Layout(compositeColumn.Canvas, useAscender, simulate, floatRightX - floatingElement.getActualWidth() - 0.01f, minY, floatRightX, yLine);
floatRightX -= floatingElement.getActualWidth();
rightWidth += floatingElement.getActualWidth();
}
minYLine = Math.Min(minYLine, yLine - floatingElement.getActualHeight());
}
else
{
if (minY > minYLine)
{
status = ColumnText.NO_MORE_COLUMN;
floatingElements.Insert(0, nextElement);
if (currentCompositeColumn != null)
{
currentCompositeColumn.SetText(null);
}
break;
}
else
{
if (nextElement is ISpaceable && (!ignoreSpacingBefore || !currentCompositeColumn.IgnoreSpacingBefore || ((ISpaceable)nextElement).PaddingTop != 0))
{
yLine -= ((ISpaceable)nextElement).SpacingBefore;
}
if (simulate)
{
if (nextElement is PdfPTable)
{
currentCompositeColumn.AddElement(new PdfPTable((PdfPTable)nextElement));
}
else
{
currentCompositeColumn.AddElement(nextElement);
}
}
else
{
currentCompositeColumn.AddElement(nextElement);
}
if (yLine > minYLine)
{
currentCompositeColumn.SetSimpleColumn(floatLeftX, yLine, floatRightX, minYLine);
}
else
{
currentCompositeColumn.SetSimpleColumn(floatLeftX, yLine, floatRightX, minY);
}
currentCompositeColumn.FilledWidth = 0;
status = currentCompositeColumn.Go(simulate);
if (yLine > minYLine && (floatLeftX > leftX || floatRightX < rightX) &&
(status & ColumnText.NO_MORE_TEXT) == 0)
{
yLine = minYLine;
floatLeftX = leftX;
floatRightX = rightX;
if (leftWidth != 0 && rightWidth != 0)
{
filledWidth = rightX - leftX;
}
else
{
if (leftWidth > filledWidth)
{
filledWidth = leftWidth;
}
if (rightWidth > filledWidth)
{
filledWidth = rightWidth;
}
}
leftWidth = 0;
rightWidth = 0;
if (simulate && nextElement is PdfPTable)
{
currentCompositeColumn.AddElement(new PdfPTable((PdfPTable)nextElement));
}
currentCompositeColumn.SetSimpleColumn(floatLeftX, yLine, floatRightX, minY);
status = currentCompositeColumn.Go(simulate);
minYLine = currentCompositeColumn.YLine + currentCompositeColumn.Descender;
yLine = minYLine;
if (currentCompositeColumn.FilledWidth > filledWidth)
{
filledWidth = currentCompositeColumn.FilledWidth;
}
}
else
{
if (rightWidth > 0)
{
rightWidth += currentCompositeColumn.FilledWidth;
}
else if (leftWidth > 0)
{
leftWidth += currentCompositeColumn.FilledWidth;
}
else if (currentCompositeColumn.FilledWidth > filledWidth)
{
filledWidth = currentCompositeColumn.FilledWidth;
}
minYLine = Math.Min(currentCompositeColumn.YLine + currentCompositeColumn.Descender, minYLine);
yLine = currentCompositeColumn.YLine + currentCompositeColumn.Descender;
}
if ((status & ColumnText.NO_MORE_TEXT) == 0)
{
if (!simulate)
{
floatingElements.InsertRange(0, currentCompositeColumn.CompositeElements);
currentCompositeColumn.CompositeElements.Clear();
}
else
{
floatingElements.Insert(0, nextElement);
currentCompositeColumn.SetText(null);
}
break;
}
else
{
currentCompositeColumn.SetText(null);
}
}
}
if (nextElement is Paragraph)
{
Paragraph p = (Paragraph)nextElement;
foreach (IElement e in p)
{
if (e is WritableDirectElement)
{
WritableDirectElement writableElement = (WritableDirectElement)e;
if (writableElement.DirectElemenType == WritableDirectElement.DIRECT_ELEMENT_TYPE_HEADER && !simulate)
{
PdfWriter writer = compositeColumn.Canvas.PdfWriter;
PdfDocument doc = compositeColumn.Canvas.PdfDocument;
// here is used a little hack:
// writableElement.write() method implementation uses PdfWriter.getVerticalPosition() to create PdfDestination (see com.itextpdf.tool.xml.html.Header),
// so here we are adjusting document's currentHeight in order to make getVerticalPosition() return value corresponding to real current position
float savedHeight = doc.currentHeight;
doc.currentHeight = doc.Top - yLine - doc.indentation.indentTop;
writableElement.Write(writer, doc);
doc.currentHeight = savedHeight;
}
}
}
}
if (ignoreSpacingBefore && nextElement.Chunks.Count == 0)
{
if (nextElement is Paragraph)
{
Paragraph p = (Paragraph)nextElement;
IElement e = p[0];
if (e is WritableDirectElement)
{
WritableDirectElement writableDirectElement = (WritableDirectElement)e;
if (writableDirectElement.DirectElemenType != WritableDirectElement.DIRECT_ELEMENT_TYPE_HEADER)
{
ignoreSpacingBefore = false;
}
}
}
else if (nextElement is ISpaceable)
{
ignoreSpacingBefore = false;
}
}
else
{
ignoreSpacingBefore = false;
}
}
if (leftWidth != 0 && rightWidth != 0)
{
filledWidth = rightX - leftX;
}
else
{
if (leftWidth > filledWidth)
{
filledWidth = leftWidth;
}
if (rightWidth > filledWidth)
{
filledWidth = rightWidth;
}
}
yLine = minYLine;
floatLeftX = leftX;
floatRightX = rightX;
return(status);
}
public int Layout(PdfContentByte canvas, bool simulate)
{
compositeColumn.Canvas = canvas;
int status = ColumnText.NO_MORE_TEXT;
List <IElement> floatingElements = new List <IElement>();
List <IElement> content = simulate ? new List <IElement>(this.content) : this.content;
while (content.Count > 0)
{
if (content[0] is PdfDiv)
{
PdfDiv floatingElement = (PdfDiv)content[0];
if (floatingElement.Float == PdfDiv.FloatType.LEFT || floatingElement.Float == PdfDiv.FloatType.RIGHT)
{
floatingElements.Add(floatingElement);
content.RemoveAt(0);
}
else
{
if (floatingElements.Count > 0)
{
status = FloatingLayout(floatingElements, simulate);
if ((status & ColumnText.NO_MORE_TEXT) == 0)
{
break;
}
}
content.RemoveAt(0);
status = floatingElement.Layout(canvas, useAscender, true, floatLeftX, minY, floatRightX, yLine);
if (!simulate)
{
canvas.OpenMCBlock(floatingElement);
status = floatingElement.Layout(canvas, useAscender, simulate, floatLeftX, minY, floatRightX, yLine);
canvas.CloseMCBlock(floatingElement);
}
if (floatingElement.getActualWidth() > filledWidth)
{
filledWidth = floatingElement.getActualWidth();
}
if ((status & ColumnText.NO_MORE_TEXT) == 0)
{
content.Insert(0, floatingElement);
yLine = floatingElement.YLine;
break;
}
else
{
yLine -= floatingElement.getActualHeight();
}
}
}
else
{
floatingElements.Add(content[0]);
content.RemoveAt(0);
}
}
if ((status & ColumnText.NO_MORE_TEXT) != 0 && floatingElements.Count > 0)
{
status = FloatingLayout(floatingElements, simulate);
}
content.InsertRange(0, floatingElements);
return(status);
}
private int FloatingLayout(List <IElement> floatingElements, bool simulate)
{
int status = ColumnText.NO_MORE_TEXT;
float minYLine = yLine;
float leftWidth = 0;
float rightWidth = 0;
ColumnText currentCompositeColumn = compositeColumn;
if (simulate)
{
currentCompositeColumn = ColumnText.Duplicate(compositeColumn);
}
bool ignoreSpacingBefore = maxY == yLine;
while (floatingElements.Count > 0)
{
IElement nextElement = floatingElements[0];
floatingElements.RemoveAt(0);
if (nextElement is PdfDiv)
{
PdfDiv floatingElement = (PdfDiv)nextElement;
status = floatingElement.Layout(compositeColumn.Canvas, useAscender, true, floatLeftX, minY, floatRightX, yLine);
if ((status & ColumnText.NO_MORE_TEXT) == 0)
{
yLine = minYLine;
floatLeftX = leftX;
floatRightX = rightX;
status = floatingElement.Layout(compositeColumn.Canvas, useAscender, true, floatLeftX, minY, floatRightX, yLine);
if ((status & ColumnText.NO_MORE_TEXT) == 0)
{
floatingElements.Insert(0, floatingElement);
break;
}
}
if (floatingElement.Float == PdfDiv.FloatType.LEFT)
{
status = floatingElement.Layout(compositeColumn.Canvas, useAscender, simulate, floatLeftX, minY, floatRightX, yLine);
floatLeftX += floatingElement.getActualWidth();
leftWidth += floatingElement.getActualWidth();
}
else if (floatingElement.Float == PdfDiv.FloatType.RIGHT)
{
status = floatingElement.Layout(compositeColumn.Canvas, useAscender, simulate, floatRightX - floatingElement.getActualWidth() - 0.01f, minY, floatRightX, yLine);
floatRightX -= floatingElement.getActualWidth();
rightWidth += floatingElement.getActualWidth();
}
minYLine = Math.Min(minYLine, yLine - floatingElement.getActualHeight());
}
else
{
if (minY > minYLine)
{
status = ColumnText.NO_MORE_COLUMN;
floatingElements.Insert(0, nextElement);
if (currentCompositeColumn != null)
{
currentCompositeColumn.SetText(null);
}
break;
}
else
{
if (nextElement is ISpaceable && (!ignoreSpacingBefore || !currentCompositeColumn.IgnoreSpacingBefore || ((ISpaceable)nextElement).PaddingTop != 0))
{
yLine -= ((ISpaceable)nextElement).SpacingBefore;
}
if (simulate)
{
if (nextElement is PdfPTable)
{
currentCompositeColumn.AddElement(new PdfPTable((PdfPTable)nextElement));
}
else
{
currentCompositeColumn.AddElement(nextElement);
}
}
else
{
currentCompositeColumn.AddElement(nextElement);
}
if (yLine > minYLine)
{
currentCompositeColumn.SetSimpleColumn(floatLeftX, yLine, floatRightX, minYLine);
}
else
{
currentCompositeColumn.SetSimpleColumn(floatLeftX, yLine, floatRightX, minY);
}
currentCompositeColumn.FilledWidth = 0;
status = currentCompositeColumn.Go(simulate);
if (yLine > minYLine && (floatLeftX > leftX || floatRightX < rightX) &&
(status & ColumnText.NO_MORE_TEXT) == 0)
{
yLine = minYLine;
floatLeftX = leftX;
floatRightX = rightX;
if (leftWidth != 0 && rightWidth != 0)
{
filledWidth = rightX - leftX;
}
else
{
if (leftWidth > filledWidth)
{
filledWidth = leftWidth;
}
if (rightWidth > filledWidth)
{
filledWidth = rightWidth;
}
}
leftWidth = 0;
rightWidth = 0;
if (simulate && nextElement is PdfPTable)
{
currentCompositeColumn.AddElement(new PdfPTable((PdfPTable)nextElement));
}
currentCompositeColumn.SetSimpleColumn(floatLeftX, yLine, floatRightX, minY);
status = currentCompositeColumn.Go(simulate);
minYLine = currentCompositeColumn.YLine + currentCompositeColumn.Descender;
yLine = minYLine;
if (currentCompositeColumn.FilledWidth > filledWidth)
{
filledWidth = currentCompositeColumn.FilledWidth;
}
}
else
{
if (rightWidth > 0)
{
rightWidth += currentCompositeColumn.FilledWidth;
}
else if (leftWidth > 0)
{
leftWidth += currentCompositeColumn.FilledWidth;
}
else if (currentCompositeColumn.FilledWidth > filledWidth)
{
filledWidth = currentCompositeColumn.FilledWidth;
}
minYLine = Math.Min(currentCompositeColumn.YLine + currentCompositeColumn.Descender, minYLine);
yLine = currentCompositeColumn.YLine + currentCompositeColumn.Descender;
}
if ((status & ColumnText.NO_MORE_TEXT) == 0)
{
if (!simulate)
{
floatingElements.InsertRange(0, currentCompositeColumn.CompositeElements);
currentCompositeColumn.CompositeElements.Clear();
}
else
{
floatingElements.Insert(0, nextElement);
currentCompositeColumn.SetText(null);
}
break;
}
else
{
currentCompositeColumn.SetText(null);
}
}
}
if (ignoreSpacingBefore && nextElement.Chunks.Count == 0)
{
if (nextElement is Paragraph)
{
Paragraph p = (Paragraph)nextElement;
IElement e = p[0];
if (e is WritableDirectElement)
{
WritableDirectElement writableDirectElement = (WritableDirectElement)e;
if (writableDirectElement.DirectElemenType != WritableDirectElement.DIRECT_ELEMENT_TYPE_HEADER)
{
ignoreSpacingBefore = false;
}
}
}
else if (nextElement is ISpaceable)
{
ignoreSpacingBefore = false;
}
}
else
{
ignoreSpacingBefore = false;
}
}
if (leftWidth != 0 && rightWidth != 0)
{
filledWidth = rightX - leftX;
}
else
{
if (leftWidth > filledWidth)
{
filledWidth = leftWidth;
}
if (rightWidth > filledWidth)
{
filledWidth = rightWidth;
}
}
yLine = minYLine;
floatLeftX = leftX;
floatRightX = rightX;
return(status);
}
