/**
* Gets the main appearance layer.
* <p>
* Consult <A HREF="http://partners.adobe.com/asn/developer/pdfs/tn/PPKAppearances.pdf">PPKAppearances.pdf</A>
* for further details.
* @return the main appearance layer
* @throws DocumentException on error
* @throws IOException on error
*/
public PdfTemplate GetAppearance()
{
if (IsInvisible()) {
PdfTemplate t = new PdfTemplate(writer);
t.BoundingBox = new Rectangle(0, 0);
writer.AddDirectTemplateSimple(t, null);
return t;
}
if (app[0] == null) {
PdfTemplate t = app[0] = new PdfTemplate(writer);
t.BoundingBox = new Rectangle(100, 100);
writer.AddDirectTemplateSimple(t, new PdfName("n0"));
t.SetLiteral("% DSBlank\n");
}
if (app[1] == null && !acro6Layers) {
PdfTemplate t = app[1] = new PdfTemplate(writer);
t.BoundingBox = new Rectangle(100, 100);
writer.AddDirectTemplateSimple(t, new PdfName("n1"));
t.SetLiteral(questionMark);
}
if (app[2] == null) {
String text;
if (layer2Text == null) {
StringBuilder buf = new StringBuilder();
buf.Append("Digitally signed by ").Append(PdfPKCS7.GetSubjectFields((X509Certificate)certChain[0]).GetField("CN")).Append('\n');
buf.Append("Date: ").Append(signDate.ToString("yyyy.MM.dd HH:mm:ss zzz"));
if (reason != null)
buf.Append('\n').Append("Reason: ").Append(reason);
if (location != null)
buf.Append('\n').Append("Location: ").Append(location);
text = buf.ToString();
}
else
text = layer2Text;
PdfTemplate t = app[2] = new PdfTemplate(writer);
t.BoundingBox = rect;
writer.AddDirectTemplateSimple(t, new PdfName("n2"));
if (image != null) {
if (imageScale == 0) {
t.AddImage(image, rect.Width, 0, 0, rect.Height, 0, 0);
}
else {
float usableScale = imageScale;
if (imageScale < 0)
usableScale = Math.Min(rect.Width / image.Width, rect.Height / image.Height);
float w = image.Width * usableScale;
float h = image.Height * usableScale;
float x = (rect.Width - w) / 2;
float y = (rect.Height - h) / 2;
t.AddImage(image, w, 0, 0, h, x, y);
}
}
Font font;
if (layer2Font == null)
font = new Font();
else
font = new Font(layer2Font);
float size = font.Size;
Rectangle dataRect = null;
Rectangle signatureRect = null;
if (Render == SignatureRender.NameAndDescription ||
(Render == SignatureRender.GraphicAndDescription && this.SignatureGraphic != null)) {
// origin is the bottom-left
signatureRect = new Rectangle(
MARGIN,
MARGIN,
rect.Width / 2 - MARGIN,
rect.Height - MARGIN);
dataRect = new Rectangle(
rect.Width / 2 + MARGIN / 2,
MARGIN,
rect.Width - MARGIN / 2,
rect.Height - MARGIN);
if (rect.Height > rect.Width) {
signatureRect = new Rectangle(
MARGIN,
rect.Height / 2,
rect.Width - MARGIN,
rect.Height);
dataRect = new Rectangle(
MARGIN,
MARGIN,
rect.Width - MARGIN,
rect.Height / 2 - MARGIN);
}
}
else {
dataRect = new Rectangle(
MARGIN,
MARGIN,
rect.Width - MARGIN,
rect.Height * (1 - TOP_SECTION) - MARGIN);
}
if (Render == SignatureRender.NameAndDescription) {
string signedBy = Legacy.Text.Pdf.PdfPKCS7.GetSubjectFields(this.certChain[0]).GetField("CN");
Rectangle sr2 = new Rectangle(signatureRect.Width - MARGIN, signatureRect.Height - MARGIN );
float signedSize = FitText(font, signedBy, sr2, -1, runDirection);
ColumnText ct2 = new ColumnText(t);
ct2.RunDirection = runDirection;
ct2.SetSimpleColumn(new Phrase(signedBy, font), signatureRect.Left, signatureRect.Bottom, signatureRect.Right, signatureRect.Top, signedSize, Element.ALIGN_LEFT);
ct2.Go();
}
else if (Render == SignatureRender.GraphicAndDescription) {
ColumnText ct2 = new ColumnText(t);
ct2.RunDirection = runDirection;
ct2.SetSimpleColumn(signatureRect.Left, signatureRect.Bottom, signatureRect.Right, signatureRect.Top, 0, Element.ALIGN_RIGHT);
Image im = Image.GetInstance(SignatureGraphic);
im.ScaleToFit(signatureRect.Width, signatureRect.Height);
Paragraph p = new Paragraph();
// must calculate the point to draw from to make image appear in middle of column
float x = 0;
// experimentation found this magic number to counteract Adobe's signature graphic, which
// offsets the y co-ordinate by 15 units
float y = -im.ScaledHeight + 15;
x = x + (signatureRect.Width - im.ScaledWidth) / 2;
y = y - (signatureRect.Height - im.ScaledHeight) / 2;
p.Add(new Chunk(im, x + (signatureRect.Width - im.ScaledWidth) / 2, y, false));
ct2.AddElement(p);
ct2.Go();
}
if (size <= 0) {
Rectangle sr = new Rectangle(dataRect.Width, dataRect.Height);
size = FitText(font, text, sr, 12, runDirection);
}
ColumnText ct = new ColumnText(t);
ct.RunDirection = runDirection;
ct.SetSimpleColumn(new Phrase(text, font), dataRect.Left, dataRect.Bottom, dataRect.Right, dataRect.Top, size, Element.ALIGN_LEFT);
ct.Go();
}
if (app[3] == null && !acro6Layers) {
PdfTemplate t = app[3] = new PdfTemplate(writer);
t.BoundingBox = new Rectangle(100, 100);
writer.AddDirectTemplateSimple(t, new PdfName("n3"));
t.SetLiteral("% DSBlank\n");
}
if (app[4] == null && !acro6Layers) {
PdfTemplate t = app[4] = new PdfTemplate(writer);
t.BoundingBox = new Rectangle(0, rect.Height * (1 - TOP_SECTION), rect.Right, rect.Top);
writer.AddDirectTemplateSimple(t, new PdfName("n4"));
Font font;
if (layer2Font == null)
font = new Font();
else
font = new Font(layer2Font);
float size = font.Size;
String text = "Signature Not Verified";
if (layer4Text != null)
text = layer4Text;
Rectangle sr = new Rectangle(rect.Width - 2 * MARGIN, rect.Height * TOP_SECTION - 2 * MARGIN);
size = FitText(font, text, sr, 15, runDirection);
ColumnText ct = new ColumnText(t);
ct.RunDirection = runDirection;
ct.SetSimpleColumn(new Phrase(text, font), MARGIN, 0, rect.Width - MARGIN, rect.Height - MARGIN, size, Element.ALIGN_LEFT);
ct.Go();
}
int rotation = writer.reader.GetPageRotation(page);
Rectangle rotated = new Rectangle(rect);
int n = rotation;
while (n > 0) {
rotated = rotated.Rotate();
n -= 90;
}
if (frm == null) {
frm = new PdfTemplate(writer);
frm.BoundingBox = rotated;
writer.AddDirectTemplateSimple(frm, new PdfName("FRM"));
float scale = Math.Min(rect.Width, rect.Height) * 0.9f;
float x = (rect.Width - scale) / 2;
float y = (rect.Height - scale) / 2;
scale /= 100;
if (rotation == 90)
frm.ConcatCTM(0, 1, -1, 0, rect.Height, 0);
else if (rotation == 180)
frm.ConcatCTM(-1, 0, 0, -1, rect.Width, rect.Height);
else if (rotation == 270)
frm.ConcatCTM(0, -1, 1, 0, 0, rect.Width);
frm.AddTemplate(app[0], 0, 0);
if (!acro6Layers)
frm.AddTemplate(app[1], scale, 0, 0, scale, x, y);
frm.AddTemplate(app[2], 0, 0);
if (!acro6Layers) {
frm.AddTemplate(app[3], scale, 0, 0, scale, x, y);
frm.AddTemplate(app[4], 0, 0);
}
}
PdfTemplate napp = new PdfTemplate(writer);
napp.BoundingBox = rotated;
writer.AddDirectTemplateSimple(napp, null);
napp.AddTemplate(frm, 0, 0);
return napp;
}
// [M4] Adding a PdfPTable
/** Adds a <CODE>PdfPTable</CODE> to the document.
* @param ptable the <CODE>PdfPTable</CODE> to be added to the document.
* @throws DocumentException on error
*/
internal void AddPTable(PdfPTable ptable)
{
ColumnText ct = new ColumnText(writer.DirectContent);
// if the table prefers to be on a single page, and it wouldn't
//fit on the current page, start a new page.
if (ptable.KeepTogether && !FitsPage(ptable, 0f) && currentHeight > 0) {
NewPage();
}
// add dummy paragraph if we aren't at the top of a page, so that
// spacingBefore will be taken into account by ColumnText
if (currentHeight > 0) {
Paragraph p = new Paragraph();
p.Leading = 0;
ct.AddElement(p);
}
ct.AddElement(ptable);
bool he = ptable.HeadersInEvent;
ptable.HeadersInEvent = true;
int loop = 0;
while (true) {
ct.SetSimpleColumn(IndentLeft, IndentBottom, IndentRight, IndentTop - currentHeight);
int status = ct.Go();
if ((status & ColumnText.NO_MORE_TEXT) != 0) {
text.MoveText(0, ct.YLine - IndentTop + currentHeight);
currentHeight = IndentTop - ct.YLine;
break;
}
if (IndentTop - currentHeight == ct.YLine)
++loop;
else
loop = 0;
if (loop == 3) {
Add(new Paragraph("ERROR: Infinite table loop"));
break;
}
NewPage();
}
ptable.HeadersInEvent = he;
}