public void Verify_OptionalContentActionExample_CanBeCreated()
{
var pdfFilePath = TestUtils.GetOutputFileName();
var stream = new FileStream(pdfFilePath, FileMode.Create);
// step 1
var document = new Document();
// step 2
var writer = PdfWriter.GetInstance(document, stream);
writer.PdfVersion = PdfWriter.VERSION_1_5;
// step 3
document.AddAuthor(TestUtils.Author);
document.Open();
// step 4
var a1 = new PdfLayer("answer 1", writer);
var a2 = new PdfLayer("answer 2", writer);
var a3 = new PdfLayer("answer 3", writer);
a1.On = false;
a2.On = false;
a3.On = false;
var bf = BaseFont.CreateFont();
var cb = writer.DirectContent;
cb.BeginText();
cb.SetFontAndSize(bf, 18);
cb.ShowTextAligned(Element.ALIGN_LEFT,
"Q1: Who is the director of the movie 'Paths of Glory'?", 50, 766, 0);
cb.ShowTextAligned(Element.ALIGN_LEFT,
"Q2: Who directed the movie 'Lawrence of Arabia'?", 50, 718, 0);
cb.ShowTextAligned(Element.ALIGN_LEFT,
"Q3: Who is the director of 'House of Flying Daggers'?", 50, 670, 0);
cb.EndText();
cb.SaveState();
cb.SetRgbColorFill(0xFF, 0x00, 0x00);
cb.BeginText();
cb.BeginLayer(a1);
cb.ShowTextAligned(Element.ALIGN_LEFT,
"A1: Stanley Kubrick", 50, 742, 0);
cb.EndLayer();
cb.BeginLayer(a2);
cb.ShowTextAligned(Element.ALIGN_LEFT,
"A2: David Lean", 50, 694, 0);
cb.EndLayer();
cb.BeginLayer(a3);
cb.ShowTextAligned(Element.ALIGN_LEFT,
"A3: Zhang Yimou", 50, 646, 0);
cb.EndLayer();
cb.EndText();
cb.RestoreState();
var stateOn = new ArrayList {
"ON", a1, a2, a3
};
var actionOn = PdfAction.SetOcGstate(stateOn, true);
var stateOff = new ArrayList {
"OFF", a1, a2, a3
};
var actionOff = PdfAction.SetOcGstate(stateOff, true);
var stateToggle = new ArrayList {
"Toggle", a1, a2, a3
};
var actionToggle = PdfAction.SetOcGstate(stateToggle, true);
var p = new Phrase("Change the state of the answers:");
var on = new Chunk(" on ").SetAction(actionOn);
p.Add(on);
var off = new Chunk("/ off ").SetAction(actionOff);
p.Add(off);
var toggle = new Chunk("/ toggle").SetAction(actionToggle);
p.Add(toggle);
document.Add(p);
document.Close();
stream.Dispose();
TestUtils.VerifyPdfFileIsReadable(pdfFilePath);
}
