public virtual void WriteUtf8AltText()
{
String RESOURCE = sourceFolder + "Space Odyssey.jpg";
PdfDocument pdfDoc = new PdfDocument(new PdfWriter(destinationFolder + "writeUtf8AltText.pdf"));
pdfDoc.SetTagged();
PdfPage page = pdfDoc.AddNewPage();
PdfCanvas canvas = new PdfCanvas(page);
TagTreePointer tagPointer = new TagTreePointer(pdfDoc);
tagPointer.SetPageForTagging(page);
tagPointer.AddTag(StandardRoles.DIV);
tagPointer.AddTag(StandardRoles.SPAN);
// 2001: A Space Odyssey (Космическая одиссея)
tagPointer.GetContext().GetPointerStructElem(tagPointer).SetAlt(new PdfString("2001: A Space Odyssey (\u041A\u043E\u0441\u043C\u0438\u0447\u0435\u0441\u043A\u0430\u044F "
+ "\u043E\u0434\u0438\u0441\u0441\u0435\u044F)", PdfEncodings.UTF8));
ImageData img = ImageDataFactory.Create(RESOURCE);
canvas.OpenTag(tagPointer.GetTagReference());
canvas.AddImage(img, 36, 700, 100, false, false);
canvas.CloseTag();
canvas.EndText();
pdfDoc.Close();
NUnit.Framework.Assert.IsNull(new CompareTool().CompareByContent(destinationFolder + "writeUtf8AltText.pdf"
, sourceFolder + "cmp_writeUtf8AltText.pdf", destinationFolder, "diffAltText_"));
}
public virtual void TagStructureRemovingTest02()
{
PdfReader reader = new PdfReader(sourceFolder + "taggedDocument.pdf");
PdfWriter writer = new PdfWriter(destinationFolder + "tagStructureRemovingTest02.pdf");
writer.SetCompressionLevel(CompressionConstants.NO_COMPRESSION);
PdfDocument document = new PdfDocument(reader, writer);
PdfPage firstPage = document.GetPage(1);
PdfPage secondPage = document.GetPage(2);
document.RemovePage(firstPage);
document.RemovePage(secondPage);
PdfPage page = document.AddNewPage();
TagTreePointer tagPointer = new TagTreePointer(document);
tagPointer.SetPageForTagging(page);
PdfCanvas canvas = new PdfCanvas(page);
tagPointer.AddTag(StandardRoles.P);
PdfFont standardFont = PdfFontFactory.CreateFont(StandardFonts.COURIER);
canvas.BeginText().SetFontAndSize(standardFont, 24).SetTextMatrix(1, 0, 0, 1, 32, 512);
tagPointer.AddTag(StandardRoles.SPAN);
canvas.OpenTag(tagPointer.GetTagReference()).ShowText("Hello ").CloseTag();
canvas.SetFontAndSize(standardFont, 30).OpenTag(tagPointer.GetTagReference()).ShowText("World").CloseTag()
.EndText();
document.Close();
CompareResult("tagStructureRemovingTest02.pdf", "cmp_tagStructureRemovingTest02.pdf", "diffRemoving02_");
}
public virtual void WriteUtf8ActualText()
{
PdfDocument pdfDoc = new PdfDocument(new PdfWriter(destinationFolder + "writeUtf8ActualText.pdf"));
pdfDoc.SetTagged();
PdfPage page = pdfDoc.AddNewPage();
PdfCanvas canvas = new PdfCanvas(page);
TagTreePointer tagPointer = new TagTreePointer(pdfDoc);
tagPointer.SetPageForTagging(page);
tagPointer.AddTag(StandardRoles.DIV);
tagPointer.AddTag(StandardRoles.SPAN);
tagPointer.GetContext().GetPointerStructElem(tagPointer).SetActualText(new PdfString("actual", PdfEncodings
.UTF8));
canvas.BeginText();
canvas.MoveText(36, 788);
canvas.SetFontAndSize(PdfFontFactory.CreateFont(StandardFonts.TIMES_ROMAN), 12);
canvas.OpenTag(tagPointer.GetTagReference());
canvas.ShowText("These piece of text has an actual text property. Can be viewed via properties of span in the tag tree."
);
canvas.CloseTag();
canvas.EndText();
pdfDoc.Close();
NUnit.Framework.Assert.IsNull(new CompareTool().CompareByContent(destinationFolder + "writeUtf8ActualText.pdf"
, sourceFolder + "cmp_writeUtf8ActualText.pdf", destinationFolder, "diffActualText_"));
}
public virtual void TagStructureRemovingTest03()
{
PdfWriter writer = new PdfWriter(destinationFolder + "tagStructureRemovingTest03.pdf");
writer.SetCompressionLevel(CompressionConstants.NO_COMPRESSION);
PdfDocument document = new PdfDocument(writer);
document.SetTagged();
PdfPage page = document.AddNewPage();
TagTreePointer tagPointer = new TagTreePointer(document);
tagPointer.SetPageForTagging(page);
PdfCanvas canvas = new PdfCanvas(page);
tagPointer.AddTag(PdfName.P);
IAccessibleElement paragraphElement = tagPointer.GetConnectedElement(true);
PdfFont standardFont = PdfFontFactory.CreateFont(FontConstants.COURIER);
canvas.BeginText().SetFontAndSize(standardFont, 24).SetTextMatrix(1, 0, 0, 1, 32, 512);
tagPointer.AddTag(PdfName.Span);
canvas.OpenTag(tagPointer.GetTagReference()).ShowText("Hello ").CloseTag();
canvas.SetFontAndSize(standardFont, 30).OpenTag(tagPointer.GetTagReference()).ShowText("World").CloseTag()
.EndText();
tagPointer.MoveToParent().MoveToParent();
document.RemovePage(1);
PdfPage newPage = document.AddNewPage();
canvas = new PdfCanvas(newPage);
tagPointer.SetPageForTagging(newPage);
tagPointer.MoveToTag(paragraphElement).AddTag(PdfName.Span);
canvas.OpenTag(tagPointer.GetTagReference()).BeginText().SetFontAndSize(standardFont, 24).SetTextMatrix(1,
0, 0, 1, 32, 512).ShowText("Hello.").EndText().CloseTag();
document.Close();
CompareResult("tagStructureRemovingTest03.pdf", "cmp_tagStructureRemovingTest03.pdf", "diffRemoving03_");
}
public virtual void TagTreePointerTest02()
{
FileStream fos = new FileStream(destinationFolder + "tagTreePointerTest02.pdf", FileMode.Create);
PdfWriter writer = new PdfWriter(fos);
writer.SetCompressionLevel(CompressionConstants.NO_COMPRESSION);
PdfDocument document = new PdfDocument(writer);
document.SetTagged();
PdfPage page = document.AddNewPage();
TagTreePointer tagPointer = new TagTreePointer(document);
tagPointer.SetPageForTagging(page);
PdfCanvas canvas = new PdfCanvas(page);
canvas.BeginText();
PdfFont standardFont = PdfFontFactory.CreateFont(StandardFonts.COURIER);
canvas.SetFontAndSize(standardFont, 24).SetTextMatrix(1, 0, 0, 1, 32, 512);
PdfStructureAttributes attributes = new PdfStructureAttributes("random attributes");
attributes.AddTextAttribute("hello", "world");
tagPointer.AddTag(StandardRoles.P).AddTag(StandardRoles.SPAN).GetProperties().SetActualText("Actual text for span is: Hello World"
).SetLanguage("en-GB").AddAttributes(attributes);
canvas.OpenTag(tagPointer.GetTagReference()).ShowText("Hello ").CloseTag();
canvas.SetFontAndSize(standardFont, 30).OpenTag(tagPointer.GetTagReference()).ShowText("World").CloseTag();
canvas.EndText().Release();
page.Flush();
document.Close();
CompareResult("tagTreePointerTest02.pdf", "cmp_tagTreePointerTest02.pdf", "diff02_");
}
protected void ManipulatePdf(String src, String dest)
{
PdfReader reader = new PdfReader(src);
PdfWriter writer = new PdfWriter(dest);
PdfDocument pdfDocument = new PdfDocument(reader, writer);
PdfPage firstPage = pdfDocument.GetFirstPage();
PdfCanvas canvas = new PdfCanvas(firstPage);
// The blue star would be something like logo of our document.
// So for example we don't want it to be read out loud on every page. To achieve it, we mark it as an Artifact.
canvas.OpenTag(new CanvasArtifact());
DrawStar(canvas, 30, 745, ColorConstants.BLUE);
canvas.CloseTag();
// The green star we want to be a part of actual content and logical structure of the document.
// To modify tag structure manually we create TagTreePointer. After creation it points at the root tag.
TagTreePointer tagPointer = new TagTreePointer(pdfDocument);
tagPointer.AddTag(StandardRoles.FIGURE);
tagPointer.GetProperties().SetAlternateDescription("The green star.");
// It is important to set the page at which new content will be tagged
tagPointer.SetPageForTagging(firstPage);
canvas.OpenTag(tagPointer.GetTagReference());
DrawStar(canvas, 450, 745, ColorConstants.GREEN);
canvas.CloseTag();
// We can change the position of the existing tags in the tag structure.
tagPointer.MoveToParent();
TagTreePointer newPositionOfStar = new TagTreePointer(pdfDocument);
newPositionOfStar.MoveToKid(StandardRoles.SECT);
int indexOfTheGreenStarTag = 2;
// tagPointer points at the parent of the green star tag
tagPointer.RelocateKid(indexOfTheGreenStarTag, newPositionOfStar);
// Using the relocateKid method, we can even change the order of the same parent's kids.
// This could be used to change for example reading order.
// Make both tagPointer and newPositionOfStar to point at the same tag
tagPointer.MoveToRoot().MoveToKid(StandardRoles.SECT);
// Next added tag to this tag pointer will be added at the 0 position
newPositionOfStar.SetNextNewKidIndex(0);
indexOfTheGreenStarTag = 2;
tagPointer.RelocateKid(indexOfTheGreenStarTag, newPositionOfStar);
pdfDocument.Close();
}
public virtual void TagStructureRemovingTest03()
{
PdfWriter writer = new PdfWriter(destinationFolder + "tagStructureRemovingTest03.pdf");
writer.SetCompressionLevel(CompressionConstants.NO_COMPRESSION);
PdfDocument document = new PdfDocument(writer);
document.SetTagged();
PdfPage page = document.AddNewPage();
TagTreePointer tagPointer = new TagTreePointer(document);
tagPointer.SetPageForTagging(page);
PdfCanvas canvas = new PdfCanvas(page);
tagPointer.AddTag(StandardRoles.P);
WaitingTagsManager waitingTagsManager = tagPointer.GetContext().GetWaitingTagsManager();
Object pWaitingTagObj = new Object();
waitingTagsManager.AssignWaitingState(tagPointer, pWaitingTagObj);
PdfFont standardFont = PdfFontFactory.CreateFont(StandardFonts.COURIER);
canvas.BeginText().SetFontAndSize(standardFont, 24).SetTextMatrix(1, 0, 0, 1, 32, 512);
tagPointer.AddTag(StandardRoles.SPAN);
canvas.OpenTag(tagPointer.GetTagReference()).ShowText("Hello ").CloseTag();
canvas.SetFontAndSize(standardFont, 30).OpenTag(tagPointer.GetTagReference()).ShowText("World").CloseTag()
.EndText();
tagPointer.MoveToParent().MoveToParent();
document.RemovePage(1);
PdfPage newPage = document.AddNewPage();
canvas = new PdfCanvas(newPage);
tagPointer.SetPageForTagging(newPage);
waitingTagsManager.TryMovePointerToWaitingTag(tagPointer, pWaitingTagObj);
tagPointer.AddTag(StandardRoles.SPAN);
canvas.OpenTag(tagPointer.GetTagReference()).BeginText().SetFontAndSize(standardFont, 24).SetTextMatrix(1,
0, 0, 1, 32, 512).ShowText("Hello.").EndText().CloseTag();
document.Close();
CompareResult("tagStructureRemovingTest03.pdf", "cmp_tagStructureRemovingTest03.pdf", "diffRemoving03_");
}
public virtual void TagStructureFlushingTest06()
{
PdfWriter writer = new PdfWriter(destinationFolder + "tagStructureFlushingTest06.pdf");
writer.SetCompressionLevel(CompressionConstants.NO_COMPRESSION);
PdfDocument document = new PdfDocument(writer);
document.SetTagged();
PdfPage page1 = document.AddNewPage();
TagTreePointer tagPointer = new TagTreePointer(document);
tagPointer.SetPageForTagging(page1);
PdfCanvas canvas = new PdfCanvas(page1);
tagPointer.AddTag(StandardRoles.DIV);
tagPointer.AddTag(StandardRoles.P);
canvas.BeginText();
PdfFont standardFont = PdfFontFactory.CreateFont(StandardFonts.COURIER);
canvas.SetFontAndSize(standardFont, 24).SetTextMatrix(1, 0, 0, 1, 32, 512);
tagPointer.AddTag(StandardRoles.SPAN);
WaitingTagsManager waitingTagsManager = document.GetTagStructureContext().GetWaitingTagsManager();
Object associatedObj = new Object();
waitingTagsManager.AssignWaitingState(tagPointer, associatedObj);
canvas.OpenTag(tagPointer.GetTagReference()).ShowText("Hello ").CloseTag();
canvas.SetFontAndSize(standardFont, 30).OpenTag(tagPointer.GetTagReference()).ShowText("World").CloseTag();
canvas.EndText().Release();
page1.Flush();
tagPointer.RelocateKid(0, new TagTreePointer(document).MoveToKid(StandardRoles.DIV).SetNextNewKidIndex(0).
AddTag(StandardRoles.P));
tagPointer.RemoveTag();
waitingTagsManager.RemoveWaitingState(associatedObj);
document.GetTagStructureContext().FlushPageTags(page1);
document.GetStructTreeRoot().CreateParentTreeEntryForPage(page1);
document.Close();
CompareResult("tagStructureFlushingTest06.pdf", "cmp_tagStructureFlushingTest06.pdf", "diffFlushing06_");
}
public virtual void TagTreePointerTest01()
{
FileStream fos = new FileStream(destinationFolder + "tagTreePointerTest01.pdf", FileMode.Create);
PdfWriter writer = new PdfWriter(fos).SetCompressionLevel(CompressionConstants.NO_COMPRESSION);
PdfDocument document = new PdfDocument(writer);
document.SetTagged();
PdfPage page1 = document.AddNewPage();
TagTreePointer tagPointer = new TagTreePointer(document);
tagPointer.SetPageForTagging(page1);
PdfCanvas canvas = new PdfCanvas(page1);
PdfFont standardFont = PdfFontFactory.CreateFont(StandardFonts.COURIER);
canvas.BeginText().SetFontAndSize(standardFont, 24).SetTextMatrix(1, 0, 0, 1, 32, 512);
tagPointer.AddTag(StandardRoles.P).AddTag(StandardRoles.SPAN);
canvas.OpenTag(tagPointer.GetTagReference()).ShowText("Hello ").CloseTag();
canvas.SetFontAndSize(standardFont, 30).OpenTag(tagPointer.GetTagReference()).ShowText("World").CloseTag();
tagPointer.MoveToParent().MoveToParent();
canvas.EndText().Release();
PdfPage page2 = document.AddNewPage();
tagPointer.SetPageForTagging(page2);
canvas = new PdfCanvas(page2);
canvas.BeginText().SetFontAndSize(PdfFontFactory.CreateFont(StandardFonts.HELVETICA), 24).SetTextMatrix(1,
0, 0, 1, 32, 512);
tagPointer.AddTag(StandardRoles.P).AddTag(StandardRoles.SPAN);
canvas.OpenTag(tagPointer.GetTagReference()).ShowText("Hello ").CloseTag();
tagPointer.MoveToParent().AddTag(StandardRoles.SPAN);
canvas.OpenTag(tagPointer.GetTagReference()).ShowText("World").CloseTag();
canvas.EndText().Release();
page1.Flush();
page2.Flush();
document.Close();
CompareResult("tagTreePointerTest01.pdf", "cmp_tagTreePointerTest01.pdf", "diff01_");
}
public virtual void TagStructureFlushingTest05()
{
PdfWriter writer = new PdfWriter(destinationFolder + "tagStructureFlushingTest05.pdf");
writer.SetCompressionLevel(CompressionConstants.NO_COMPRESSION);
PdfDocument document = new PdfDocument(writer);
document.SetTagged();
PdfPage page1 = document.AddNewPage();
TagTreePointer tagPointer = new TagTreePointer(document);
tagPointer.SetPageForTagging(page1);
PdfCanvas canvas = new PdfCanvas(page1);
tagPointer.AddTag(StandardRoles.DIV);
tagPointer.AddTag(StandardRoles.P);
WaitingTagsManager waitingTagsManager = tagPointer.GetContext().GetWaitingTagsManager();
Object pWaitingTagObj = new Object();
waitingTagsManager.AssignWaitingState(tagPointer, pWaitingTagObj);
canvas.BeginText();
PdfFont standardFont = PdfFontFactory.CreateFont(StandardFonts.COURIER);
canvas.SetFontAndSize(standardFont, 24).SetTextMatrix(1, 0, 0, 1, 32, 512);
tagPointer.AddTag(StandardRoles.SPAN);
canvas.OpenTag(tagPointer.GetTagReference()).ShowText("Hello ").CloseTag();
canvas.SetFontAndSize(standardFont, 30).OpenTag(tagPointer.GetTagReference()).ShowText("World").CloseTag();
tagPointer.MoveToParent().MoveToParent();
// Flushing /Div tag and it's children. /P tag shall not be flushed, as it is has connected paragraphElement
// object. On removing connection between paragraphElement and /P tag, /P tag shall be flushed.
// When tag is flushed, tagPointer begins to point to tag's parent. If parent is also flushed - to the root.
tagPointer.FlushTag();
waitingTagsManager.TryMovePointerToWaitingTag(tagPointer, pWaitingTagObj);
tagPointer.AddTag(StandardRoles.SPAN);
canvas.OpenTag(tagPointer.GetTagReference()).ShowText("Hello ").CloseTag();
canvas.SetFontAndSize(standardFont, 30).OpenTag(tagPointer.GetTagReference()).ShowText("again").CloseTag();
waitingTagsManager.RemoveWaitingState(pWaitingTagObj);
tagPointer.MoveToRoot();
canvas.EndText().Release();
PdfPage page2 = document.AddNewPage();
tagPointer.SetPageForTagging(page2);
canvas = new PdfCanvas(page2);
tagPointer.AddTag(StandardRoles.P);
canvas.BeginText().SetFontAndSize(PdfFontFactory.CreateFont(StandardFonts.HELVETICA), 24).SetTextMatrix(1,
0, 0, 1, 32, 512);
tagPointer.AddTag(StandardRoles.SPAN);
canvas.OpenTag(tagPointer.GetTagReference()).ShowText("Hello ").CloseTag();
tagPointer.MoveToParent().AddTag(StandardRoles.SPAN);
canvas.OpenTag(tagPointer.GetTagReference()).ShowText("World").CloseTag();
canvas.EndText().Release();
page1.Flush();
page2.Flush();
document.Close();
CompareResult("tagStructureFlushingTest05.pdf", "cmp_tagStructureFlushingTest05.pdf", "diffFlushing05_");
}
private bool CreateSingleTag(TaggingHintKey hintKey, TagTreePointer tagPointer)
{
if (hintKey.IsFinished())
{
ILog logger = LogManager.GetLogger(typeof(iText.Layout.Tagging.LayoutTaggingHelper));
logger.Error(iText.IO.LogMessageConstant.ATTEMPT_TO_CREATE_A_TAG_FOR_FINISHED_HINT);
return(false);
}
if (IsNonAccessibleHint(hintKey))
{
// try move pointer to the nearest accessible parent in case any direct content will be
// tagged with this tagPointer
TaggingHintKey parentTagHint = GetAccessibleParentHint(hintKey);
context.GetWaitingTagsManager().TryMovePointerToWaitingTag(tagPointer, parentTagHint);
return(false);
}
WaitingTagsManager waitingTagsManager = context.GetWaitingTagsManager();
if (!waitingTagsManager.TryMovePointerToWaitingTag(tagPointer, hintKey))
{
IAccessibleElement modelElement = hintKey.GetAccessibleElement();
TaggingHintKey parentHint = GetAccessibleParentHint(hintKey);
int ind = -1;
if (parentHint != null)
{
// if parent tag hasn't been created yet - it's ok, kid tags will be moved on it's creation
if (waitingTagsManager.TryMovePointerToWaitingTag(tagPointer, parentHint))
{
IList <TaggingHintKey> siblingsHint = GetAccessibleKidsHint(parentHint);
int i = siblingsHint.IndexOf(hintKey);
ind = GetNearestNextSiblingTagIndex(waitingTagsManager, tagPointer, siblingsHint, i);
}
}
tagPointer.AddTag(ind, modelElement.GetAccessibilityProperties());
if (hintKey.GetOverriddenRole() != null)
{
tagPointer.SetRole(hintKey.GetOverriddenRole());
}
waitingTagsManager.AssignWaitingState(tagPointer, hintKey);
IList <TaggingHintKey> kidsHint = GetAccessibleKidsHint(hintKey);
foreach (TaggingHintKey kidKey in kidsHint)
{
MoveKidTagIfCreated(hintKey, kidKey);
}
return(true);
}
return(false);
}
public virtual void TagTreePointerTest03()
{
PdfReader reader = new PdfReader(sourceFolder + "taggedDocument.pdf");
PdfWriter writer = new PdfWriter(destinationFolder + "tagTreePointerTest03.pdf");
writer.SetCompressionLevel(CompressionConstants.NO_COMPRESSION);
PdfDocument document = new PdfDocument(reader, writer);
TagTreePointer tagPointer = new TagTreePointer(document);
tagPointer.MoveToKid(StandardRoles.TABLE).MoveToKid(2, StandardRoles.TR);
TagTreePointer tagPointerCopy = new TagTreePointer(tagPointer);
tagPointer.RemoveTag();
// tagPointerCopy now points at removed tag
String exceptionMessage = null;
try {
tagPointerCopy.AddTag(StandardRoles.SPAN);
}
catch (PdfException e) {
exceptionMessage = e.Message;
}
NUnit.Framework.Assert.AreEqual(PdfException.TagTreePointerIsInInvalidStateItPointsAtRemovedElementUseMoveToRoot
, exceptionMessage);
tagPointerCopy.MoveToRoot().MoveToKid(StandardRoles.TABLE);
tagPointerCopy.MoveToKid(StandardRoles.TR);
TagTreePointer tagPointerCopyCopy = new TagTreePointer(tagPointerCopy);
tagPointerCopy.FlushTag();
// tagPointerCopyCopy now points at flushed tag
try {
tagPointerCopyCopy.AddTag(StandardRoles.SPAN);
}
catch (PdfException e) {
exceptionMessage = e.Message;
}
NUnit.Framework.Assert.AreEqual(PdfException.TagTreePointerIsInInvalidStateItPointsAtFlushedElementUseMoveToRoot
, exceptionMessage);
try {
tagPointerCopy.MoveToKid(0);
}
catch (PdfException e) {
exceptionMessage = e.Message;
}
NUnit.Framework.Assert.AreEqual(PdfException.CannotMoveToFlushedKid, exceptionMessage);
document.Close();
}
public virtual void TagTreePointerTest07()
{
PdfWriter writer = new PdfWriter(destinationFolder + "tagTreePointerTest07.pdf").SetCompressionLevel(CompressionConstants
.NO_COMPRESSION);
PdfDocument document = new PdfDocument(writer);
document.SetTagged();
PdfPage page = document.AddNewPage();
TagTreePointer tagPointer = new TagTreePointer(document).SetPageForTagging(page);
tagPointer.AddTag(StandardRoles.SPAN);
PdfCanvas canvas = new PdfCanvas(page);
PdfFont standardFont = PdfFontFactory.CreateFont(StandardFonts.COURIER);
canvas.BeginText().SetFontAndSize(standardFont, 24).SetTextMatrix(1, 0, 0, 1, 32, 512);
canvas.OpenTag(tagPointer.GetTagReference()).ShowText("Hello ").CloseTag();
canvas.OpenTag(tagPointer.GetTagReference().AddProperty(PdfName.E, new PdfString("Big Mister"))).ShowText(
" BMr. ").CloseTag();
canvas.SetFontAndSize(standardFont, 30).OpenTag(tagPointer.GetTagReference()).ShowText("World").CloseTag();
canvas.EndText();
document.Close();
CompareResult("tagTreePointerTest07.pdf", "cmp_tagTreePointerTest07.pdf", "diff07_");
}
public override void Draw(DrawContext drawContext)
{
PdfDocument document = drawContext.GetDocument();
ApplyDestination(document);
ApplyAction(document);
bool isTagged = drawContext.IsTaggingEnabled() && GetModelElement() is IAccessibleElement;
TagTreePointer tagPointer = null;
IAccessibleElement accessibleElement = null;
if (isTagged)
{
accessibleElement = (IAccessibleElement)GetModelElement();
PdfName role = accessibleElement.GetRole();
if (role != null && !PdfName.Artifact.Equals(role))
{
tagPointer = document.GetTagStructureContext().GetAutoTaggingPointer();
if (!tagPointer.IsElementConnectedToTag(accessibleElement))
{
AccessibleAttributesApplier.ApplyLayoutAttributes(role, this, document);
if (role.Equals(PdfName.TD))
{
AccessibleAttributesApplier.ApplyTableAttributes(this);
}
if (role.Equals(PdfName.List))
{
AccessibleAttributesApplier.ApplyListAttributes(this);
}
}
tagPointer.AddTag(accessibleElement, true);
}
else
{
isTagged = false;
}
}
bool isRelativePosition = IsRelativePosition();
if (isRelativePosition)
{
ApplyAbsolutePositioningTranslation(false);
}
BeginRotationIfApplied(drawContext.GetCanvas());
DrawBackground(drawContext);
DrawBorder(drawContext);
DrawChildren(drawContext);
EndRotationIfApplied(drawContext.GetCanvas());
if (isRelativePosition)
{
ApplyAbsolutePositioningTranslation(true);
}
if (isTagged)
{
tagPointer.MoveToParent();
if (isLastRendererForModelElement)
{
document.GetTagStructureContext().RemoveElementConnectionToTag(accessibleElement);
}
}
flushed = true;
}
protected void ManipulatePdf(String dest)
{
PdfDocument pdfDocument = new PdfDocument(new PdfWriter(dest));
// Mark that this document is tagged
pdfDocument.SetTagged();
Document document = new Document(pdfDocument);
// Save some space at the beginning of pages for future additions
document.SetTopMargin(100);
// Here we obtain a TagTreePointer which is used internally for auto tagging.
// In the beginning, this instance points at the root of the tag structure tree.
// We can move it and as a result all new content will be under the current position of the auto tagging pointer.
// Auto tagging pointer is also used for tagging annotations and forms, so the same approach could be used there.
TagTreePointer autoTaggingPointer = pdfDocument.GetTagStructureContext().GetAutoTaggingPointer();
// Create a new tag, which will be a kid of the root element
autoTaggingPointer.AddTag(StandardRoles.SECT);
// Add some content to the page
Paragraph p = new Paragraph().Add(TEXT1).Add(TEXT2).Add(TEXT3);
document.Add(p);
// Create bold font to the header text
PdfFont bold = PdfFontFactory.CreateFont(StandardFonts.HELVETICA_BOLD);
Table table = new Table(UnitValue.CreatePercentArray(2));
table
.SetWidth(350)
.SetHorizontalAlignment(HorizontalAlignment.CENTER)
.SetTextAlignment(TextAlignment.CENTER);
table.AddHeaderCell(new Paragraph("Nominations").SetFont(bold));
table.AddHeaderCell(new Paragraph("Film").SetFont(bold));
table.AddCell("12").AddCell("The Revenant");
table.AddCell("10").AddCell("Mad Max: Fury Road");
table.AddCell("7").AddCell("The Martian");
table.AddCell("6").AddCell("Spotlight");
table.AddCell("5").AddCell("Star Wars: The Force Awakens");
table.AddCell("4").AddCell("Room");
table.AddCell("3").AddCell("The Hateful Eight");
table.AddCell("2").AddCell("Ex Machina");
document.Add(table);
// From here we want to create another section of the document.
// Move the root tag and create a new 'Section' tag
autoTaggingPointer
.MoveToParent()
.AddTag(StandardRoles.SECT);
p = new Paragraph(TEXT4);
p.Add(TEXT5);
document.Add(p);
table = new Table(UnitValue.CreatePercentArray(2));
table
.SetWidth(350)
.SetHorizontalAlignment(HorizontalAlignment.CENTER)
.SetTextAlignment(TextAlignment.CENTER);
table.AddHeaderCell(new Paragraph("Awards").SetFont(bold));
table.AddHeaderCell(new Paragraph("Film").SetFont(bold));
table.AddCell("6").AddCell("Mad Max: Fury Road");
table.AddCell("3").AddCell("The Revenant");
table.AddCell("2").AddCell("Spotlight");
document.Add(table);
// Layout element roles could be changed, or set to null if you want to omit it in the tag structure.
// But be aware that if you set null to the role of the tag which immediate kids are page content items,
// then this content won't be tagged at all (for example if you set role to null for Text element, then the
// text on the page won't be tagged too).
Paragraph caption = new Paragraph().SetTextAlignment(TextAlignment.CENTER);
caption.GetAccessibilityProperties().SetRole(null);
Text captionText = new Text("Table 2, winners");
captionText.GetAccessibilityProperties().SetRole(StandardRoles.CAPTION);
caption.Add(captionText);
document.Add(caption);
// By default, root tag has role of 'Document'. Let's change it to 'Part'.
// Move to the root tag (here we also could have used moveToParent method)
// and change the role of the tag the pointer points
autoTaggingPointer
.MoveToRoot()
.SetRole(StandardRoles.PART);
document.Close();
}
public override void Draw(DrawContext drawContext)
{
base.Draw(drawContext);
PdfDocument document = drawContext.GetDocument();
bool isTagged = drawContext.IsTaggingEnabled() && GetModelElement() is IAccessibleElement;
bool isArtifact = false;
TagTreePointer tagPointer = null;
if (isTagged)
{
tagPointer = document.GetTagStructureContext().GetAutoTaggingPointer();
IAccessibleElement accessibleElement = (IAccessibleElement)GetModelElement();
PdfName role = accessibleElement.GetRole();
if (role != null && !PdfName.Artifact.Equals(role))
{
AccessibleAttributesApplier.ApplyLayoutAttributes(accessibleElement.GetRole(), this, document);
tagPointer.AddTag(accessibleElement);
}
else
{
isTagged = false;
if (PdfName.Artifact.Equals(role))
{
isArtifact = true;
}
}
}
ApplyMargins(occupiedArea.GetBBox(), false);
bool isRelativePosition = IsRelativePosition();
if (isRelativePosition)
{
ApplyAbsolutePositioningTranslation(false);
}
if (fixedYPosition == null)
{
fixedYPosition = occupiedArea.GetBBox().GetY() + pivotY;
}
if (fixedXPosition == null)
{
fixedXPosition = occupiedArea.GetBBox().GetX();
}
PdfCanvas canvas = drawContext.GetCanvas();
if (isTagged)
{
canvas.OpenTag(tagPointer.GetTagReference());
}
else
{
if (isArtifact)
{
canvas.OpenTag(new CanvasArtifact());
}
}
PdfXObject xObject = ((Image)(GetModelElement())).GetXObject();
canvas.AddXObject(xObject, matrix[0], matrix[1], matrix[2], matrix[3], (float)fixedXPosition + deltaX, (float
)fixedYPosition);
if (true.Equals(GetPropertyAsBoolean(Property.FLUSH_ON_DRAW)))
{
xObject.Flush();
}
if (isTagged || isArtifact)
{
canvas.CloseTag();
}
if (isRelativePosition)
{
ApplyAbsolutePositioningTranslation(true);
}
ApplyMargins(occupiedArea.GetBBox(), true);
if (isTagged)
{
tagPointer.MoveToParent();
}
}
public override void Draw(DrawContext drawContext)
{
bool isTagged = drawContext.IsTaggingEnabled() && GetModelElement() is IAccessibleElement;
TagTreePointer tagPointer = null;
if (isTagged)
{
tagPointer = drawContext.GetDocument().GetTagStructureContext().GetAutoTaggingPointer();
IAccessibleElement modelElement = (IAccessibleElement)GetModelElement();
PdfName role = modelElement.GetRole();
if (role != null && !PdfName.Artifact.Equals(role))
{
bool lBodyTagIsCreated = tagPointer.IsElementConnectedToTag(modelElement);
if (!lBodyTagIsCreated)
{
tagPointer.AddTag(PdfName.LI);
}
else
{
tagPointer.MoveToTag(modelElement).MoveToParent();
}
}
else
{
isTagged = false;
}
}
base.Draw(drawContext);
// It will be null in case of overflow (only the "split" part will contain symbol renderer.
if (symbolRenderer != null)
{
symbolRenderer.SetParent(parent);
float x = occupiedArea.GetBBox().GetX();
if (childRenderers.Count > 0)
{
float?yLine = ((AbstractRenderer)childRenderers[0]).GetFirstYLineRecursively();
if (yLine != null)
{
if (symbolRenderer is TextRenderer)
{
((TextRenderer)symbolRenderer).MoveYLineTo((float)yLine);
}
else
{
symbolRenderer.Move(0, (float)yLine - symbolRenderer.GetOccupiedArea().GetBBox().GetY());
}
}
else
{
symbolRenderer.Move(0, occupiedArea.GetBBox().GetY() + occupiedArea.GetBBox().GetHeight() - (symbolRenderer
.GetOccupiedArea().GetBBox().GetY() + symbolRenderer.GetOccupiedArea().GetBBox().GetHeight()));
}
}
else
{
symbolRenderer.Move(0, occupiedArea.GetBBox().GetY() + occupiedArea.GetBBox().GetHeight() - symbolRenderer
.GetOccupiedArea().GetBBox().GetHeight() - symbolRenderer.GetOccupiedArea().GetBBox().GetY());
}
ListSymbolAlignment listSymbolAlignment = (ListSymbolAlignment)parent.GetProperty <ListSymbolAlignment?>(Property
.LIST_SYMBOL_ALIGNMENT, ListSymbolAlignment.RIGHT);
float xPosition = x - symbolRenderer.GetOccupiedArea().GetBBox().GetX();
if (listSymbolAlignment == ListSymbolAlignment.RIGHT)
{
xPosition += symbolAreaWidth - symbolRenderer.GetOccupiedArea().GetBBox().GetWidth();
}
symbolRenderer.Move(xPosition, 0);
if (isTagged)
{
tagPointer.AddTag(0, PdfName.Lbl);
}
symbolRenderer.Draw(drawContext);
if (isTagged)
{
tagPointer.MoveToParent();
}
}
if (isTagged)
{
tagPointer.MoveToParent();
}
}
public virtual void HandleEvent(Event pdfEvent)
{
{
PdfDocumentEvent docEvent = (PdfDocumentEvent)pdfEvent;
PdfDocument pdfDoc = docEvent.GetDocument();
Document document = new Document(pdfDoc);
PdfPage page = docEvent.GetPage();
int pageNumber = pdfDoc.GetPageNumber(page);
Rectangle pageSize = page.GetPageSize();
PdfCanvas pdfCanvas = new PdfCanvas(page.NewContentStreamBefore(), page.GetResources(), pdfDoc);
//Add header and footer
PdfFont font = PdfFontFactory.CreateRegisteredFont("calibri-bold");
if (pageNumber == 1)
{
if (_docOptions.HasFlag(DocConverter.DocOptions.AddHeaderPageOne))
{
pdfCanvas.SaveState();
PdfExtGState state = new PdfExtGState();
state.SetFillOpacity(1.0f);
pdfCanvas.SetExtGState(state);
var imageHeight = _idHeaderFirst.GetHeight() * 72 / 96; //convert pixels to points
var imageToAdd = new Image(_idHeaderFirst, 0, pageSize.GetTop() - imageHeight, pageSize.GetWidth());
imageToAdd.GetAccessibilityProperties()
.SetAlternateDescription("Background header image");
imageToAdd.GetAccessibilityProperties().SetRole(StandardRoles.ARTIFACT);
PdfLayer pdflayer = new PdfLayer("main layer", pdfDoc);
pdflayer.SetOn(true);
Canvas canvas = new Canvas(pdfCanvas, pdfDoc,
document.GetPageEffectiveArea(pdfDoc.GetDefaultPageSize()));
pdflayer.SetPageElement("L");
pdfCanvas.BeginLayer(pdflayer);
canvas.EnableAutoTagging(page);
canvas.Add(imageToAdd);
pdfCanvas.EndLayer();
}
if (_docOptions.HasFlag(DocConverter.DocOptions.DisplayTitle))
{
//Add Title
Color purpleColor = new DeviceRgb(85, 60, 116);
TagTreePointer tagPointer = new TagTreePointer(pdfDoc);
tagPointer.SetPageForTagging(page);
tagPointer.AddTag(StandardRoles.TITLE);
pdfCanvas.BeginText().SetColor(purpleColor, true).SetFontAndSize(font, 28)
.MoveText(42, pageSize.GetTop() - 150).OpenTag(tagPointer.GetTagReference()).ShowText(_title).CloseTag().Stroke();
}
}
else if (_docOptions.HasFlag(DocConverter.DocOptions.AddHeaderAllPages))
{
pdfCanvas.SaveState();
PdfExtGState state = new PdfExtGState();
state.SetFillOpacity(1.0f);
pdfCanvas.SetExtGState(state);
var imageHeight = _idHeaderAll.GetHeight() * 72 / 96; //convert pixels to points
var imageToAdd = new Image(_idHeaderAll, 0, pageSize.GetTop() - imageHeight, pageSize.GetWidth());
imageToAdd.GetAccessibilityProperties().SetRole(StandardRoles.ARTIFACT);
imageToAdd.GetAccessibilityProperties()
.SetAlternateDescription("Background header image");
PdfLayer pdflayer = new PdfLayer("main layer", pdfDoc);
pdflayer.SetOn(true);
Canvas canvas = new Canvas(pdfCanvas, pdfDoc,
document.GetPageEffectiveArea(pdfDoc.GetDefaultPageSize()));
pdfCanvas.BeginLayer(pdflayer);
canvas.EnableAutoTagging(page);
canvas.Add(imageToAdd);
pdfCanvas.EndLayer();
pdfCanvas.RestoreState();
}
if (_docOptions.HasFlag(DocConverter.DocOptions.AddLineBottomEachPage))
{
//Add line to the bottom
Color blueColor = new DeviceCmyk(100, 25, 0, 39);
pdfCanvas.SetStrokeColor(blueColor)
.MoveTo(36, 36)
.LineTo(559, 36)
.ClosePathStroke();
}
pdfCanvas.Release();
}
}
