public void SetClippingMask(float width, float height, float x, float y)
{
template = topTemplate.CreateTemplate(width, height);
topTemplate.AddTemplate(template, x, topTemplate.Height - height - y);
currentWidth = width;
currentHeight = height;
}
/**
* Gets the button appearance.
* @throws IOException on error
* @throws DocumentException on error
* @return the button appearance
*/
public PdfAppearance GetAppearance()
{
PdfAppearance app = GetBorderAppearance();
Rectangle box = new Rectangle(app.BoundingBox);
if ((text == null || text.Length == 0) && (layout == LAYOUT_LABEL_ONLY || (image == null && template == null && iconReference == null))) {
return app;
}
if (layout == LAYOUT_ICON_ONLY && image == null && template == null && iconReference == null)
return app;
BaseFont ufont = RealFont;
bool borderExtra = borderStyle == PdfBorderDictionary.STYLE_BEVELED || borderStyle == PdfBorderDictionary.STYLE_INSET;
float h = box.Height - borderWidth * 2;
float bw2 = borderWidth;
if (borderExtra) {
h -= borderWidth * 2;
bw2 *= 2;
}
float offsetX = (borderExtra ? 2 * borderWidth : borderWidth);
offsetX = Math.Max(offsetX, 1);
float offX = Math.Min(bw2, offsetX);
tp = null;
float textX = float.NaN;
float textY = 0;
float fsize = fontSize;
float wt = box.Width - 2 * offX - 2;
float ht = box.Height - 2 * offX;
float adj = (iconFitToBounds ? 0 : offX + 1);
int nlayout = layout;
if (image == null && template == null && iconReference == null)
nlayout = LAYOUT_LABEL_ONLY;
Rectangle iconBox = null;
while (true) {
switch (nlayout) {
case LAYOUT_LABEL_ONLY:
case LAYOUT_LABEL_OVER_ICON:
if (text != null && text.Length > 0 && wt > 0 && ht > 0) {
fsize = CalculateFontSize(wt, ht);
textX = (box.Width - ufont.GetWidthPoint(text, fsize)) / 2;
textY = (box.Height - ufont.GetFontDescriptor(BaseFont.ASCENT, fsize)) / 2;
}
goto case LAYOUT_ICON_ONLY;
case LAYOUT_ICON_ONLY:
if (nlayout == LAYOUT_LABEL_OVER_ICON || nlayout == LAYOUT_ICON_ONLY)
iconBox = new Rectangle(box.Left + adj, box.Bottom + adj, box.Right - adj, box.Top - adj);
break;
case LAYOUT_ICON_TOP_LABEL_BOTTOM:
if (text == null || text.Length == 0 || wt <= 0 || ht <= 0) {
nlayout = LAYOUT_ICON_ONLY;
continue;
}
float nht = box.Height * 0.35f - offX;
if (nht > 0)
fsize = CalculateFontSize(wt, nht);
else
fsize = 4;
textX = (box.Width - ufont.GetWidthPoint(text, fsize)) / 2;
textY = offX - ufont.GetFontDescriptor(BaseFont.DESCENT, fsize);
iconBox = new Rectangle(box.Left + adj, textY + fsize, box.Right - adj, box.Top - adj);
break;
case LAYOUT_LABEL_TOP_ICON_BOTTOM:
if (text == null || text.Length == 0 || wt <= 0 || ht <= 0) {
nlayout = LAYOUT_ICON_ONLY;
continue;
}
nht = box.Height * 0.35f - offX;
if (nht > 0)
fsize = CalculateFontSize(wt, nht);
else
fsize = 4;
textX = (box.Width - ufont.GetWidthPoint(text, fsize)) / 2;
textY = box.Height - offX - fsize;
if (textY < offX)
textY = offX;
iconBox = new Rectangle(box.Left + adj, box.Bottom + adj, box.Right - adj, textY + ufont.GetFontDescriptor(BaseFont.DESCENT, fsize));
break;
case LAYOUT_LABEL_LEFT_ICON_RIGHT:
if (text == null || text.Length == 0 || wt <= 0 || ht <= 0) {
nlayout = LAYOUT_ICON_ONLY;
continue;
}
float nw = box.Width * 0.35f - offX;
if (nw > 0)
fsize = CalculateFontSize(wt, nw);
else
fsize = 4;
if (ufont.GetWidthPoint(text, fsize) >= wt) {
nlayout = LAYOUT_LABEL_ONLY;
fsize = fontSize;
continue;
}
textX = offX + 1;
textY = (box.Height - ufont.GetFontDescriptor(BaseFont.ASCENT, fsize)) / 2;
iconBox = new Rectangle(textX + ufont.GetWidthPoint(text, fsize), box.Bottom + adj, box.Right - adj, box.Top - adj);
break;
case LAYOUT_ICON_LEFT_LABEL_RIGHT:
if (text == null || text.Length == 0 || wt <= 0 || ht <= 0) {
nlayout = LAYOUT_ICON_ONLY;
continue;
}
nw = box.Width * 0.35f - offX;
if (nw > 0)
fsize = CalculateFontSize(wt, nw);
else
fsize = 4;
if (ufont.GetWidthPoint(text, fsize) >= wt) {
nlayout = LAYOUT_LABEL_ONLY;
fsize = fontSize;
continue;
}
textX = box.Width - ufont.GetWidthPoint(text, fsize) - offX - 1;
textY = (box.Height - ufont.GetFontDescriptor(BaseFont.ASCENT, fsize)) / 2;
iconBox = new Rectangle(box.Left + adj, box.Bottom + adj, textX - 1, box.Top - adj);
break;
}
break;
}
if (textY < box.Bottom + offX)
textY = box.Bottom + offX;
if (iconBox != null && (iconBox.Width <= 0 || iconBox.Height <= 0))
iconBox = null;
bool haveIcon = false;
float boundingBoxWidth = 0;
float boundingBoxHeight = 0;
PdfArray matrix = null;
if (iconBox != null) {
if (image != null) {
tp = new PdfTemplate(writer);
tp.BoundingBox = new Rectangle(image);
writer.AddDirectTemplateSimple(tp, PdfName.FRM);
tp.AddImage(image, image.Width, 0, 0, image.Height, 0, 0);
haveIcon = true;
boundingBoxWidth = tp.BoundingBox.Width;
boundingBoxHeight = tp.BoundingBox.Height;
}
else if (template != null) {
tp = new PdfTemplate(writer);
tp.BoundingBox = new Rectangle(template.Width, template.Height);
writer.AddDirectTemplateSimple(tp, PdfName.FRM);
tp.AddTemplate(template, template.BoundingBox.Left, template.BoundingBox.Bottom);
haveIcon = true;
boundingBoxWidth = tp.BoundingBox.Width;
boundingBoxHeight = tp.BoundingBox.Height;
}
else if (iconReference != null) {
PdfDictionary dic = (PdfDictionary)PdfReader.GetPdfObject(iconReference);
if (dic != null) {
Rectangle r2 = PdfReader.GetNormalizedRectangle(dic.GetAsArray(PdfName.BBOX));
matrix = dic.GetAsArray(PdfName.MATRIX);
haveIcon = true;
boundingBoxWidth = r2.Width;
boundingBoxHeight = r2.Height;
}
}
}
if (haveIcon) {
float icx = iconBox.Width / boundingBoxWidth;
float icy = iconBox.Height / boundingBoxHeight;
if (proportionalIcon) {
switch (scaleIcon) {
case SCALE_ICON_IS_TOO_BIG:
icx = Math.Min(icx, icy);
icx = Math.Min(icx, 1);
break;
case SCALE_ICON_IS_TOO_SMALL:
icx = Math.Min(icx, icy);
icx = Math.Max(icx, 1);
break;
case SCALE_ICON_NEVER:
icx = 1;
break;
default:
icx = Math.Min(icx, icy);
break;
}
icy = icx;
}
else {
switch (scaleIcon) {
case SCALE_ICON_IS_TOO_BIG:
icx = Math.Min(icx, 1);
icy = Math.Min(icy, 1);
break;
case SCALE_ICON_IS_TOO_SMALL:
icx = Math.Max(icx, 1);
icy = Math.Max(icy, 1);
break;
case SCALE_ICON_NEVER:
icx = icy = 1;
break;
default:
break;
}
}
float xpos = iconBox.Left + (iconBox.Width - (boundingBoxWidth * icx)) * iconHorizontalAdjustment;
float ypos = iconBox.Bottom + (iconBox.Height - (boundingBoxHeight * icy)) * iconVerticalAdjustment;
app.SaveState();
app.Rectangle(iconBox.Left, iconBox.Bottom, iconBox.Width, iconBox.Height);
app.Clip();
app.NewPath();
if (tp != null)
app.AddTemplate(tp, icx, 0, 0, icy, xpos, ypos);
else {
float cox = 0;
float coy = 0;
if (matrix != null && matrix.Size == 6) {
PdfNumber nm = matrix.GetAsNumber(4);
if (nm != null)
cox = nm.FloatValue;
nm = matrix.GetAsNumber(5);
if (nm != null)
coy = nm.FloatValue;
}
app.AddTemplateReference(iconReference, PdfName.FRM, icx, 0, 0, icy, xpos - cox * icx, ypos - coy * icy);
}
app.RestoreState();
}
if (!float.IsNaN(textX)) {
app.SaveState();
app.Rectangle(offX, offX, box.Width - 2 * offX, box.Height - 2 * offX);
app.Clip();
app.NewPath();
if (textColor == null)
app.ResetGrayFill();
else
app.SetColorFill(textColor);
app.BeginText();
app.SetFontAndSize(ufont, fsize);
app.SetTextMatrix(textX, textY);
app.ShowText(text);
app.EndText();
app.RestoreState();
}
return app;
}
/**
* 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;
}