/**
* Adds an element. Elements supported are <CODE>Paragraph</CODE>,
* <CODE>List</CODE>, <CODE>PdfPTable</CODE>, <CODE>Image</CODE> and
* <CODE>Graphic</CODE>.
* <p>
* It removes all the text placed with <CODE>addText()</CODE>.
* @param element the <CODE>Element</CODE>
*/
public void AddElement(IElement element)
{
if (element == null)
return;
if (element is Image) {
Image img = (Image)element;
PdfPTable t = new PdfPTable(1);
float w = img.WidthPercentage;
if (w == 0) {
t.TotalWidth = img.ScaledWidth;
t.LockedWidth = true;
}
else
t.WidthPercentage = w;
t.SpacingAfter = img.SpacingAfter;
t.SpacingBefore = img.SpacingBefore;
switch (img.Alignment) {
case Image.LEFT_ALIGN:
t.HorizontalAlignment = Element.ALIGN_LEFT;
break;
case Image.RIGHT_ALIGN:
t.HorizontalAlignment = Element.ALIGN_RIGHT;
break;
default:
t.HorizontalAlignment = Element.ALIGN_CENTER;
break;
}
PdfPCell c = new PdfPCell(img, true);
c.Padding = 0;
c.Border = img.Border;
c.BorderColor = img.BorderColor;
c.BorderWidth = img.BorderWidth;
c.BackgroundColor = img.BackgroundColor;
t.AddCell(c);
element = t;
}
if (element.Type == Element.CHUNK) {
element = new Paragraph((Chunk)element);
}
else if (element.Type == Element.PHRASE) {
element = new Paragraph((Phrase)element);
}
if (element is SimpleTable) {
try {
element = ((SimpleTable)element).CreatePdfPTable();
} catch (DocumentException) {
throw new ArgumentException("Element not allowed.");
}
}
else if (element.Type != Element.PARAGRAPH && element.Type != Element.LIST && element.Type != Element.PTABLE && element.Type != Element.YMARK)
throw new ArgumentException("Element not allowed.");
if (!composite) {
composite = true;
compositeElements = new ArrayList();
bidiLine = null;
waitPhrase = null;
}
compositeElements.Add(element);
}
/**
* Creates a PdfPTable object based on this TableAttributes object.
* @return a com.lowagie.text.pdf.PdfPTable object
* @throws DocumentException
*/
public PdfPTable CreatePdfPTable()
{
if (content.Count == 0) throw new BadElementException("Trying to create a table without rows.");
SimpleCell rowx = (SimpleCell)content[0];
int columns = 0;
foreach (SimpleCell cell in rowx.Content) {
columns += cell.Colspan;
}
float[] widths = new float[columns];
float[] widthpercentages = new float[columns];
PdfPTable table = new PdfPTable(columns);
table.TableEvent = this;
table.HorizontalAlignment = alignment;
int pos;
foreach (SimpleCell row in content) {
pos = 0;
foreach (SimpleCell cell in row.Content) {
if (float.IsNaN(cell.Spacing_left)) {
cell.Spacing_left = cellspacing / 2f;
}
if (float.IsNaN(cell.Spacing_right)) {
cell.Spacing_right = cellspacing / 2f;
}
if (float.IsNaN(cell.Spacing_top)) {
cell.Spacing_top = cellspacing / 2f;
}
if (float.IsNaN(cell.Spacing_bottom)) {
cell.Spacing_bottom = cellspacing / 2f;
}
cell.Padding = cellpadding;
table.AddCell(cell.CreatePdfPCell(row));
if (cell.Colspan == 1) {
if (cell.Width > 0) widths[pos] = cell.Width;
if (cell.Widthpercentage > 0) widthpercentages[pos] = cell.Widthpercentage;
}
pos += cell.Colspan;
}
}
float sumWidths = 0f;
for (int i = 0; i < columns; i++) {
if (widths[i] == 0) {
sumWidths = 0;
break;
}
sumWidths += widths[i];
}
if (sumWidths > 0) {
table.TotalWidth = sumWidths;
table.SetWidths(widths);
}
else {
for (int i = 0; i < columns; i++) {
if (widthpercentages[i] == 0) {
sumWidths = 0;
break;
}
sumWidths += widthpercentages[i];
}
if (sumWidths > 0) {
table.SetWidths(widthpercentages);
}
}
if (width > 0) {
table.TotalWidth = width;
}
if (widthpercentage > 0) {
table.WidthPercentage = widthpercentage;
}
return table;
}
public PdfPTable BuildTable()
{
if (rows.Count == 0)
return new PdfPTable(1);
int ncol = 0;
ArrayList c0 = (ArrayList)rows[0];
for (int k = 0; k < c0.Count; ++k) {
ncol += ((PdfPCell)c0[k]).Colspan;
}
PdfPTable table = new PdfPTable(ncol);
String width = (String)props["width"];
if (width == null)
table.WidthPercentage = 100;
else {
if (width.EndsWith("%"))
table.WidthPercentage = float.Parse(width.Substring(0, width.Length - 1), NumberFormatInfo.InvariantInfo);
else {
table.TotalWidth = float.Parse(width, NumberFormatInfo.InvariantInfo);
table.LockedWidth = true;
}
}
for (int row = 0; row < rows.Count; ++row) {
ArrayList col = (ArrayList)rows[row];
for (int k = 0; k < col.Count; ++k) {
table.AddCell((PdfPCell)col[k]);
}
}
return table;
}
/**
* Create a PdfPTable based on this Table object.
* @return a PdfPTable object
* @throws BadElementException
*/
public PdfPTable CreatePdfPTable()
{
if (!convert2pdfptable) {
throw new BadElementException("No error, just an old style table");
}
AutoFillEmptyCells = true;
Complete();
PdfPTable pdfptable = new PdfPTable(widths);
pdfptable.ElementComplete = complete;
if (NotAddedYet)
pdfptable.SkipFirstHeader = true;
SimpleTable t_evt = new SimpleTable();
t_evt.CloneNonPositionParameters(this);
t_evt.Cellspacing = cellspacing;
pdfptable.TableEvent = t_evt;
pdfptable.HeaderRows = lastHeaderRow + 1;
pdfptable.SplitLate = cellsFitPage;
pdfptable.KeepTogether = tableFitsPage;
if (!float.IsNaN(offset)) {
pdfptable.SpacingBefore = offset;
}
pdfptable.HorizontalAlignment = alignment;
if (locked) {
pdfptable.TotalWidth = width;
pdfptable.LockedWidth = true;
}
else {
pdfptable.WidthPercentage = width;
}
foreach (Row row in this) {
IElement cell;
PdfPCell pcell;
for (int i = 0; i < row.Columns; i++) {
if ((cell = (IElement)row.GetCell(i)) != null) {
if (cell is Table) {
pcell = new PdfPCell(((Table)cell).CreatePdfPTable());
}
else if (cell is Cell) {
pcell = ((Cell)cell).CreatePdfPCell();
pcell.Padding = cellpadding + cellspacing / 2f;
SimpleCell c_evt = new SimpleCell(SimpleCell.CELL);
c_evt.CloneNonPositionParameters((Cell)cell);
c_evt.Spacing = cellspacing * 2f;
pcell.CellEvent = c_evt;
}
else {
pcell = new PdfPCell();
}
pdfptable.AddCell(pcell);
}
}
}
return pdfptable;
}
/**
* Signals that an <CODE>Element</CODE> was added to the <CODE>Document</CODE>.
*
* @param element the element to add
* @return <CODE>true</CODE> if the element was added, <CODE>false</CODE> if not.
* @throws DocumentException when a document isn't open yet, or has been closed
*/
public override bool Add(IElement element)
{
if (writer != null && writer.IsPaused()) {
return false;
}
switch (element.Type) {
// Information (headers)
case Element.HEADER:
info.Addkey(((Meta)element).Name, ((Meta)element).Content);
break;
case Element.TITLE:
info.AddTitle(((Meta)element).Content);
break;
case Element.SUBJECT:
info.AddSubject(((Meta)element).Content);
break;
case Element.KEYWORDS:
info.AddKeywords(((Meta)element).Content);
break;
case Element.AUTHOR:
info.AddAuthor(((Meta)element).Content);
break;
case Element.CREATOR:
info.AddCreator(((Meta)element).Content);
break;
case Element.PRODUCER:
// you can not change the name of the producer
info.AddProducer();
break;
case Element.CREATIONDATE:
// you can not set the creation date, only reset it
info.AddCreationDate();
break;
// content (text)
case Element.CHUNK: {
// if there isn't a current line available, we make one
if (line == null) {
CarriageReturn();
}
// we cast the element to a chunk
PdfChunk chunk = new PdfChunk((Chunk) element, anchorAction);
// we try to add the chunk to the line, until we succeed
{
PdfChunk overflow;
while ((overflow = line.Add(chunk)) != null) {
CarriageReturn();
chunk = overflow;
chunk.TrimFirstSpace();
}
}
pageEmpty = false;
if (chunk.IsAttribute(Chunk.NEWPAGE)) {
NewPage();
}
break;
}
case Element.ANCHOR: {
leadingCount++;
Anchor anchor = (Anchor) element;
String url = anchor.Reference;
leading = anchor.Leading;
if (url != null) {
anchorAction = new PdfAction(url);
}
// we process the element
element.Process(this);
anchorAction = null;
leadingCount--;
break;
}
case Element.ANNOTATION: {
if (line == null) {
CarriageReturn();
}
Annotation annot = (Annotation) element;
Rectangle rect = new Rectangle(0, 0);
if (line != null)
rect = new Rectangle(annot.GetLlx(IndentRight - line.WidthLeft), annot.GetLly(IndentTop - currentHeight), annot.GetUrx(IndentRight - line.WidthLeft + 20), annot.GetUry(IndentTop - currentHeight - 20));
PdfAnnotation an = PdfAnnotationsImp.ConvertAnnotation(writer, annot, rect);
annotationsImp.AddPlainAnnotation(an);
pageEmpty = false;
break;
}
case Element.PHRASE: {
leadingCount++;
// we cast the element to a phrase and set the leading of the document
leading = ((Phrase) element).Leading;
// we process the element
element.Process(this);
leadingCount--;
break;
}
case Element.PARAGRAPH: {
leadingCount++;
// we cast the element to a paragraph
Paragraph paragraph = (Paragraph) element;
AddSpacing(paragraph.SpacingBefore, leading, paragraph.Font);
// we adjust the parameters of the document
alignment = paragraph.Alignment;
leading = paragraph.TotalLeading;
CarriageReturn();
// we don't want to make orphans/widows
if (currentHeight + line.Height + leading > IndentTop - IndentBottom) {
NewPage();
}
indentation.indentLeft += paragraph.IndentationLeft;
indentation.indentRight += paragraph.IndentationRight;
CarriageReturn();
IPdfPageEvent pageEvent = writer.PageEvent;
if (pageEvent != null && !isSectionTitle)
pageEvent.OnParagraph(writer, this, IndentTop - currentHeight);
// if a paragraph has to be kept together, we wrap it in a table object
if (paragraph.KeepTogether) {
CarriageReturn();
PdfPTable table = new PdfPTable(1);
table.WidthPercentage = 100f;
PdfPCell cell = new PdfPCell();
cell.AddElement(paragraph);
cell.Border = Rectangle.NO_BORDER;
cell.Padding = 0;
table.AddCell(cell);
indentation.indentLeft -= paragraph.IndentationLeft;
indentation.indentRight -= paragraph.IndentationRight;
this.Add(table);
indentation.indentLeft += paragraph.IndentationLeft;
indentation.indentRight += paragraph.IndentationRight;
}
else {
line.SetExtraIndent(paragraph.FirstLineIndent);
element.Process(this);
CarriageReturn();
AddSpacing(paragraph.SpacingAfter, paragraph.TotalLeading, paragraph.Font);
}
if (pageEvent != null && !isSectionTitle)
pageEvent.OnParagraphEnd(writer, this, IndentTop - currentHeight);
alignment = Element.ALIGN_LEFT;
indentation.indentLeft -= paragraph.IndentationLeft;
indentation.indentRight -= paragraph.IndentationRight;
CarriageReturn();
leadingCount--;
break;
}
case Element.SECTION:
case Element.CHAPTER: {
// Chapters and Sections only differ in their constructor
// so we cast both to a Section
Section section = (Section) element;
IPdfPageEvent pageEvent = writer.PageEvent;
bool hasTitle = section.NotAddedYet && section.Title != null;
// if the section is a chapter, we begin a new page
if (section.TriggerNewPage) {
NewPage();
}
if (hasTitle) {
float fith = IndentTop - currentHeight;
int rotation = pageSize.Rotation;
if (rotation == 90 || rotation == 180)
fith = pageSize.Height - fith;
PdfDestination destination = new PdfDestination(PdfDestination.FITH, fith);
while (currentOutline.Level >= section.Depth) {
currentOutline = currentOutline.Parent;
}
PdfOutline outline = new PdfOutline(currentOutline, destination, section.GetBookmarkTitle(), section.BookmarkOpen);
currentOutline = outline;
}
// some values are set
CarriageReturn();
indentation.sectionIndentLeft += section.IndentationLeft;
indentation.sectionIndentRight += section.IndentationRight;
if (section.NotAddedYet && pageEvent != null)
if (element.Type == Element.CHAPTER)
pageEvent.OnChapter(writer, this, IndentTop - currentHeight, section.Title);
else
pageEvent.OnSection(writer, this, IndentTop - currentHeight, section.Depth, section.Title);
// the title of the section (if any has to be printed)
if (hasTitle) {
isSectionTitle = true;
Add(section.Title);
isSectionTitle = false;
}
indentation.sectionIndentLeft += section.Indentation;
// we process the section
element.Process(this);
// some parameters are set back to normal again
indentation.sectionIndentLeft -= (section.IndentationLeft + section.Indentation);
indentation.sectionIndentRight -= section.IndentationRight;
if (section.ElementComplete && pageEvent != null)
if (element.Type == Element.CHAPTER)
pageEvent.OnChapterEnd(writer, this, IndentTop - currentHeight);
else
pageEvent.OnSectionEnd(writer, this, IndentTop - currentHeight);
break;
}
case Element.LIST: {
// we cast the element to a List
List list = (List) element;
if (list.Alignindent) {
list.NormalizeIndentation();
}
// we adjust the document
indentation.listIndentLeft += list.IndentationLeft;
indentation.indentRight += list.IndentationRight;
// we process the items in the list
element.Process(this);
// some parameters are set back to normal again
indentation.listIndentLeft -= list.IndentationLeft;
indentation.indentRight -= list.IndentationRight;
CarriageReturn();
break;
}
case Element.LISTITEM: {
leadingCount++;
// we cast the element to a ListItem
ListItem listItem = (ListItem) element;
AddSpacing(listItem.SpacingBefore, leading, listItem.Font);
// we adjust the document
alignment = listItem.Alignment;
indentation.listIndentLeft += listItem.IndentationLeft;
indentation.indentRight += listItem.IndentationRight;
leading = listItem.TotalLeading;
CarriageReturn();
// we prepare the current line to be able to show us the listsymbol
line.ListItem = listItem;
// we process the item
element.Process(this);
AddSpacing(listItem.SpacingAfter, listItem.TotalLeading, listItem.Font);
// if the last line is justified, it should be aligned to the left
if (line.HasToBeJustified()) {
line.ResetAlignment();
}
// some parameters are set back to normal again
CarriageReturn();
indentation.listIndentLeft -= listItem.IndentationLeft;
indentation.indentRight -= listItem.IndentationRight;
leadingCount--;
break;
}
case Element.RECTANGLE: {
Rectangle rectangle = (Rectangle) element;
graphics.Rectangle(rectangle);
pageEmpty = false;
break;
}
case Element.PTABLE: {
PdfPTable ptable = (PdfPTable)element;
if (ptable.Size <= ptable.HeaderRows)
break; //nothing to do
// before every table, we add a new line and flush all lines
EnsureNewLine();
FlushLines();
AddPTable(ptable);
pageEmpty = false;
NewLine();
break;
}
case Element.MULTI_COLUMN_TEXT: {
EnsureNewLine();
FlushLines();
MultiColumnText multiText = (MultiColumnText) element;
float height = multiText.Write(writer.DirectContent, this, IndentTop - currentHeight);
currentHeight += height;
text.MoveText(0, -1f* height);
pageEmpty = false;
break;
}
case Element.TABLE : {
if (element is SimpleTable) {
PdfPTable ptable = ((SimpleTable)element).CreatePdfPTable();
if (ptable.Size <= ptable.HeaderRows)
break; //nothing to do
// before every table, we add a new line and flush all lines
EnsureNewLine();
FlushLines();
AddPTable(ptable);
pageEmpty = false;
break;
} else if (element is Table) {
try {
PdfPTable ptable = ((Table)element).CreatePdfPTable();
if (ptable.Size <= ptable.HeaderRows)
break; //nothing to do
// before every table, we add a new line and flush all lines
EnsureNewLine();
FlushLines();
AddPTable(ptable);
pageEmpty = false;
break;
}
catch (BadElementException) {
// constructing the PdfTable
// Before the table, add a blank line using offset or default leading
float offset = ((Table)element).Offset;
if (float.IsNaN(offset))
offset = leading;
CarriageReturn();
lines.Add(new PdfLine(IndentLeft, IndentRight, alignment, offset));
currentHeight += offset;
AddPdfTable((Table)element);
}
} else {
return false;
}
break;
}
case Element.JPEG:
case Element.JPEG2000:
case Element.JBIG2:
case Element.IMGRAW:
case Element.IMGTEMPLATE: {
//carriageReturn(); suggestion by Marc Campforts
Add((Image) element);
break;
}
case Element.YMARK: {
IDrawInterface zh = (IDrawInterface)element;
zh.Draw(graphics, IndentLeft, IndentBottom, IndentRight, IndentTop, IndentTop - currentHeight - (leadingCount > 0 ? leading : 0));
pageEmpty = false;
break;
}
case Element.MARKED: {
MarkedObject mo;
if (element is MarkedSection) {
mo = ((MarkedSection)element).Title;
if (mo != null) {
mo.Process(this);
}
}
mo = (MarkedObject)element;
mo.Process(this);
break;
}
default:
return false;
}
lastElementType = element.Type;
return true;
}
