public virtual void SetLinkDestinationToPageAppendMode()
{
String input = sourceFolder + "100pages.pdf";
String output = destinationFolder + "setLinkDestinationToPageAppendMode.pdf";
PdfDocument pdfDoc = new PdfDocument(new PdfReader(input), new PdfWriter(output), new StampingProperties()
.UseAppendMode());
PdfPage page1 = pdfDoc.GetPage(1);
PdfPage page2 = pdfDoc.GetPage(2);
PdfIndirectReference page1IndRef = page1.GetPdfObject().GetIndirectReference();
PdfIndirectReference page2IndRef = page2.GetPdfObject().GetIndirectReference();
PdfDictionary aDict = ((PdfLinkAnnotation)page1.GetAnnotations()[0]).GetAction();
new PdfAction(aDict).Put(PdfName.D, PdfExplicitDestination.CreateXYZ(page2, 300, 400, 1).GetPdfObject());
PageFlushingHelper flushingHelper = new PageFlushingHelper(pdfDoc);
flushingHelper.AppendModeFlush(2);
flushingHelper.UnsafeFlushDeep(1);
// annotation is flushed
NUnit.Framework.Assert.IsTrue(aDict.IsFlushed());
// page is not flushed
NUnit.Framework.Assert.IsFalse(page1IndRef.CheckState(PdfObject.FLUSHED));
// page is released
NUnit.Framework.Assert.IsNull(page1IndRef.refersTo);
// page is not flushed
NUnit.Framework.Assert.IsFalse(page2IndRef.CheckState(PdfObject.FLUSHED));
// page is released
NUnit.Framework.Assert.IsNull(page2IndRef.refersTo);
// exception is not thrown
pdfDoc.Close();
}
public virtual void ModifyAnnotationOnlyAppendMode()
{
String input = sourceFolder + "100pages.pdf";
String output = destinationFolder + "modifyAnnotOnly.pdf";
PdfDocument pdfDoc = new PdfDocument(new PdfReader(input), new PdfWriter(output), new StampingProperties()
.UseAppendMode());
PdfPage page = pdfDoc.GetPage(1);
PdfIndirectReference pageIndRef = page.GetPdfObject().GetIndirectReference();
PdfDictionary annotObj = page.GetAnnotations()[0].SetRectangle(new PdfArray(new Rectangle(0, 0, 300, 300))
).SetPage(page).GetPdfObject();
PageFlushingHelper flushingHelper = new PageFlushingHelper(pdfDoc);
flushingHelper.AppendModeFlush(1);
// annotation is flushed
NUnit.Framework.Assert.IsTrue(annotObj.IsFlushed());
// page is not flushed
NUnit.Framework.Assert.IsFalse(pageIndRef.CheckState(PdfObject.FLUSHED));
// page is released
NUnit.Framework.Assert.IsNull(pageIndRef.refersTo);
// exception is not thrown
pdfDoc.Close();
}
public virtual void FlushSelfContainingObjectsWritingMode()
{
PdfDocument pdfDoc = new PdfDocument(new PdfWriter(new MemoryStream()));
PdfDictionary pageDict = pdfDoc.AddNewPage().GetPdfObject();
PdfDictionary dict1 = new PdfDictionary();
pageDict.Put(new PdfName("dict1"), dict1);
PdfArray arr1 = new PdfArray();
pageDict.Put(new PdfName("arr1"), arr1);
dict1.Put(new PdfName("dict1"), dict1);
dict1.Put(new PdfName("arr1"), arr1);
arr1.Add(arr1);
arr1.Add(dict1);
arr1.MakeIndirect(pdfDoc);
dict1.MakeIndirect(pdfDoc);
PageFlushingHelper flushingHelper = new PageFlushingHelper(pdfDoc);
flushingHelper.UnsafeFlushDeep(1);
NUnit.Framework.Assert.IsTrue(dict1.IsFlushed());
NUnit.Framework.Assert.IsTrue(arr1.IsFlushed());
pdfDoc.Close();
}
private static void Test(String filename, PageFlushingTest.DocMode docMode, PageFlushingTest.FlushMode flushMode
, PageFlushingTest.PagesOp pagesOp, int total, int flushedExpected, int notReadExpected)
{
String input = sourceFolder + "100pages.pdf";
String output = destinationFolder + filename;
PdfDocument pdfDoc;
switch (docMode)
{
case PageFlushingTest.DocMode.WRITING: {
pdfDoc = new PdfDocument(new PdfWriter(output));
break;
}
case PageFlushingTest.DocMode.READING: {
pdfDoc = new PdfDocument(new PdfReader(input));
break;
}
case PageFlushingTest.DocMode.STAMPING: {
pdfDoc = new PdfDocument(new PdfReader(input), new PdfWriter(output));
break;
}
case PageFlushingTest.DocMode.APPEND: {
pdfDoc = new PdfDocument(new PdfReader(input), new PdfWriter(output), new StampingProperties().UseAppendMode
());
break;
}
default: {
throw new InvalidOperationException();
}
}
PageFlushingHelper flushingHelper = new PageFlushingHelper(pdfDoc);
PdfFont font = PdfFontFactory.CreateFont(StandardFonts.HELVETICA);
PdfImageXObject xObject = new PdfImageXObject(ImageDataFactory.Create(sourceFolder + "itext.png"));
if (docMode != PageFlushingTest.DocMode.WRITING)
{
for (int i = 0; i < 100; ++i)
{
PdfPage page = pdfDoc.GetPage(i + 1);
switch (pagesOp)
{
case PageFlushingTest.PagesOp.READ: {
PdfTextExtractor.GetTextFromPage(page);
break;
}
case PageFlushingTest.PagesOp.MODIFY: {
AddContentToPage(page, font, xObject);
break;
}
case PageFlushingTest.PagesOp.MODIFY_LIGHTLY: {
AddBasicContent(page, font);
break;
}
}
switch (flushMode)
{
case PageFlushingTest.FlushMode.UNSAFE_DEEP: {
flushingHelper.UnsafeFlushDeep(i + 1);
break;
}
case PageFlushingTest.FlushMode.RELEASE_DEEP: {
flushingHelper.ReleaseDeep(i + 1);
break;
}
case PageFlushingTest.FlushMode.APPEND_MODE: {
flushingHelper.AppendModeFlush(i + 1);
break;
}
case PageFlushingTest.FlushMode.PAGE_FLUSH: {
page.Flush();
break;
}
}
}
}
if (docMode != PageFlushingTest.DocMode.READING && pagesOp == PageFlushingTest.PagesOp.MODIFY)
{
for (int i = 0; i < 100; ++i)
{
PdfPage page = pdfDoc.AddNewPage();
AddContentToPage(page, font, xObject);
switch (flushMode)
{
case PageFlushingTest.FlushMode.UNSAFE_DEEP: {
flushingHelper.UnsafeFlushDeep(pdfDoc.GetNumberOfPages());
break;
}
case PageFlushingTest.FlushMode.RELEASE_DEEP: {
flushingHelper.ReleaseDeep(pdfDoc.GetNumberOfPages());
break;
}
case PageFlushingTest.FlushMode.APPEND_MODE: {
flushingHelper.AppendModeFlush(pdfDoc.GetNumberOfPages());
break;
}
case PageFlushingTest.FlushMode.PAGE_FLUSH: {
page.Flush();
break;
}
}
}
}
VerifyFlushedObjectsNum(pdfDoc, total, flushedExpected, notReadExpected);
pdfDoc.Close();
}