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; }