List of usage examples for com.lowagie.text.pdf PdfWriter getVerticalPosition
public float getVerticalPosition(boolean ensureNewLine)
From source file:ambit.data.qmrf.Qmrf_Xml_Pdf.java
License:Open Source License
public void xml2pdf(InputSource xml, OutputStream pdf) { try {//from www . j a v a2 s . co m Document document = new Document(PageSize.A4, 80, 50, 30, 65); PdfWriter writer = PdfWriter.getInstance(document, pdf); //writer.setViewerPreferences(PdfWriter.HideMenubar| PdfWriter.HideToolbar); writer.setViewerPreferences(PdfWriter.PageModeUseThumbs | PdfWriter.PageModeUseOutlines); //PdfOutline root = writer.getDirectContent().getRootOutline(); //new PdfOutline(root, new PDFAction("http://nina.acad.bg/qmrf"), "a bookmark"); //writer.addFileAttachment(arg0, arg1, arg2, arg3) if (docBuilder == null) docBuilder = docBuilderFactory.newDocumentBuilder(); docBuilder.setErrorHandler(new SimpleErrorHandler(getClass().getName())); QMRFSchemaResolver resolver = new QMRFSchemaResolver("http://ambit.acad.bg/qmrf/qmrf.dtd", null); resolver.setIgnoreSystemID(true); docBuilder.setEntityResolver(resolver); org.w3c.dom.Document doc = null; try { doc = docBuilder.parse(xml); } catch (Exception x) { document.addCreationDate(); document.addCreator(getClass().getName()); document.open(); document.add(new Paragraph(new Chunk(x.getMessage()))); document.close(); return; } document.addCreationDate(); document.addCreator(getClass().getName()); document.addKeywords(replaceTags(findNodeValue("keywords", doc))); document.addTitle(replaceTags(findNodeValue("QSAR_title", doc))); try { NodeList info = doc.getElementsByTagName("QMRF"); for (int i = 0; i < info.getLength(); i++) document.addSubject(findAttributeValue("name", info.item(i)) + '.' + findAttributeValue("version", info.item(i))); } catch (Exception x) { document.addSubject("QMRF"); } try { document.addAuthor(listNodeAttributes(doc, "qmrf_authors", "author_ref", "author", att_author, new Boolean(true))); } catch (Exception x) { document.addAuthor(getClass().getName()); } document.open(); PdfContentByte cb = writer.getDirectContent(); try { headerTable(document, doc); } catch (Exception x) { document.add(new Paragraph(new Chunk(x.getMessage()))); document.close(); return; } PdfOutline root = writer.getDirectContent().getRootOutline(); for (int i = 0; i < subchapters.length; i++) try { int align = Paragraph.ALIGN_LEFT; if (Mode.chapter == (Mode) subchapters[i][2]) { document.add(new Paragraph(new Chunk('\n'))); PdfPTable table = new PdfPTable(1); table.setWidthPercentage(100); StringBuffer b = new StringBuffer(); b.append(findAttributeValue(subchapters[i][0].toString(), xml_attribute_chapter, doc)); b.append('.'); b.append(findAttributeValue(subchapters[i][0].toString(), xml_attribute_name, doc)); String bookmark = b.toString(); Chunk title = new Chunk(bookmark); title.setLocalDestination(bookmark); title.setFont(bfont); PdfDestination destination = new PdfDestination(PdfDestination.FITH); PdfOutline outline = new PdfOutline(root, destination, bookmark); Paragraph p = new Paragraph(title); PdfPCell cell = new PdfPCell(p); cell.setBackgroundColor(chapterColor); table.addCell(cell); document.add(table); float pos = writer.getVerticalPosition(false); if (pos < 90) document.newPage(); } else { Phrase phrase = new Phrase(); switch ((Mode) subchapters[i][2]) { case title: { StringBuffer b = new StringBuffer(); String cn = findAttributeValue(subchapters[i][0].toString(), xml_attribute_chapter, doc); if (cn == null) break; b.append(findAttributeValue(subchapters[i][0].toString(), xml_attribute_chapter, doc)); b.append('.'); b.append(findAttributeValue(subchapters[i][0].toString(), xml_attribute_name, doc)); String subchapterBookmark = b.toString(); b.append(':'); Chunk title = new Chunk(b.toString()); title.setLocalDestination(subchapterBookmark); title.setFont(bfont); phrase.add(title); PdfDestination destination = new PdfDestination(PdfDestination.FITBH); PdfOutline outline = new PdfOutline(root, destination, subchapterBookmark); break; } case text: { createNodePhrase(subchapters[i][0].toString(), doc, phrase, font); align = Paragraph.ALIGN_JUSTIFIED; break; } case answer: { String a = findAnswer(subchapters[i][0].toString(), doc); if (a != null) { Chunk answer = new Chunk(a); answer.setFont(font); phrase.add(answer); } break; } case dataset: { StringBuffer b = new StringBuffer(); b.append(findDataAvailable(subchapters[i][0].toString(), doc)); Chunk dataset = new Chunk(b.toString()); dataset.setFont(font); phrase.add(dataset); break; } case attachments: { PdfPTable table = getAttachmentsAsTable(doc, "attachment_training_data"); if (table != null) { phrase.add(new Paragraph("Training set(s)")); phrase.add(table); } table = getAttachmentsAsTable(doc, "attachment_validation_data"); if (table != null) { phrase.add(new Paragraph("Test set(s)")); phrase.add(table); } table = getAttachmentsAsTable(doc, "attachment_documents"); if (table != null) { phrase.add(new Paragraph("Supporting information")); phrase.add(table); } break; /* StringBuffer b = new StringBuffer(); b.append("Training set(s)\n"); b.append(listAttachments(doc,"attachment_training_data")); b.append("Test set(s)\n"); b.append(listAttachments(doc,"attachment_validation_data")); b.append("Supporting information\n"); b.append(listAttachments(doc,"attachment_documents")); Chunk attachments = new Chunk(b.toString()); attachments.setFont(font); phrase.add(attachments); break; */ } case reference: { try { String value = listNodeAttributes(doc, subchapters[i][0].toString(), subchapters[i][3].toString(), subchapters[i][4].toString(), (String[]) subchapters[i][5], (Boolean) subchapters[i][6]); Chunk reference = new Chunk(value); reference.setFont(font); align = Paragraph.ALIGN_JUSTIFIED; phrase.add(reference); } catch (Exception x) { } break; } } Paragraph p = new Paragraph(phrase); p.setAlignment(align); document.add(p); float pos = writer.getVerticalPosition(false); /* cb.moveTo(0, pos); cb.lineTo(PageSize.A4.width(), pos); cb.stroke(); */ if (pos < 90) document.newPage(); } } catch (Exception x) { x.printStackTrace(); } document.close(); } catch (Exception e) { e.printStackTrace(); System.err.println(e.getMessage()); } }
From source file:ambit2.data.qmrf.Qmrf_Xml_Pdf.java
License:Open Source License
public void xml2pdf(InputSource xml, OutputStream pdf) { try {//www . ja v a 2 s .c o m Document document = new Document(PageSize.A4, 80, 50, 30, 65); PdfWriter writer = PdfWriter.getInstance(document, pdf); //writer.setViewerPreferences(PdfWriter.HideMenubar| PdfWriter.HideToolbar); writer.setViewerPreferences(PdfWriter.PageModeUseThumbs | PdfWriter.PageModeUseOutlines); //PdfOutline root = writer.getDirectContent().getRootOutline(); //new PdfOutline(root, new PDFAction("http://nina.acad.bg/qmrf"), "a bookmark"); //writer.addFileAttachment(arg0, arg1, arg2, arg3) if (docBuilder == null) docBuilder = docBuilderFactory.newDocumentBuilder(); docBuilder.setErrorHandler(new SimpleErrorHandler(getClass().getName())); QMRFSchemaResolver resolver = new QMRFSchemaResolver("http://ambit2.acad.bg/qmrf/qmrf.dtd", null); resolver.setIgnoreSystemID(true); docBuilder.setEntityResolver(resolver); org.w3c.dom.Document doc = null; try { doc = docBuilder.parse(xml); } catch (Exception x) { document.addCreationDate(); document.addCreator(getClass().getName()); document.open(); document.add(new Paragraph(new Chunk(x.getMessage()))); document.close(); return; } document.addCreationDate(); document.addCreator(getClass().getName()); document.addKeywords(replaceTags(findNodeValue("keywords", doc))); document.addTitle(replaceTags(findNodeValue("QSAR_title", doc))); try { NodeList info = doc.getElementsByTagName("QMRF"); for (int i = 0; i < info.getLength(); i++) document.addSubject(findAttributeValue("name", info.item(i)) + '.' + findAttributeValue("version", info.item(i))); } catch (Exception x) { document.addSubject("QMRF"); } try { document.addAuthor(listNodeAttributes(doc, "qmrf_authors", "author_ref", "author", att_author, new Boolean(true))); } catch (Exception x) { document.addAuthor(getClass().getName()); } document.open(); PdfContentByte cb = writer.getDirectContent(); try { headerTable(document, doc); } catch (Exception x) { document.add(new Paragraph(new Chunk(x.getMessage()))); document.close(); return; } PdfOutline root = writer.getDirectContent().getRootOutline(); for (int i = 0; i < subchapters.length; i++) try { int align = Paragraph.ALIGN_LEFT; if (Mode.chapter == (Mode) subchapters[i][2]) { document.add(new Paragraph(new Chunk('\n'))); PdfPTable table = new PdfPTable(1); table.setWidthPercentage(100); StringBuffer b = new StringBuffer(); b.append(findAttributeValue(subchapters[i][0].toString(), xml_attribute_chapter, doc)); b.append('.'); b.append(findAttributeValue(subchapters[i][0].toString(), xml_attribute_name, doc)); String bookmark = b.toString(); Chunk title = new Chunk(bookmark); title.setLocalDestination(bookmark); title.setFont(bfont); PdfDestination destination = new PdfDestination(PdfDestination.FITH); PdfOutline outline = new PdfOutline(root, destination, bookmark); Paragraph p = new Paragraph(title); PdfPCell cell = new PdfPCell(p); cell.setBackgroundColor(chapterColor); table.addCell(cell); document.add(table); float pos = writer.getVerticalPosition(false); if (pos < 90) document.newPage(); } else { Phrase phrase = new Phrase(); switch ((Mode) subchapters[i][2]) { case title: { StringBuffer b = new StringBuffer(); String cn = findAttributeValue(subchapters[i][0].toString(), xml_attribute_chapter, doc); if (cn == null) break; b.append(findAttributeValue(subchapters[i][0].toString(), xml_attribute_chapter, doc)); b.append('.'); b.append(findAttributeValue(subchapters[i][0].toString(), xml_attribute_name, doc)); String subchapterBookmark = b.toString(); b.append(':'); Chunk title = new Chunk(b.toString()); title.setLocalDestination(subchapterBookmark); title.setFont(bfont); phrase.add(title); PdfDestination destination = new PdfDestination(PdfDestination.FITBH); PdfOutline outline = new PdfOutline(root, destination, subchapterBookmark); break; } case text: { createNodePhrase(subchapters[i][0].toString(), doc, phrase, font); align = Paragraph.ALIGN_JUSTIFIED; break; } case answer: { String a = findAnswer(subchapters[i][0].toString(), doc); if (a != null) { Chunk answer = new Chunk(a); answer.setFont(font); phrase.add(answer); } break; } case dataset: { StringBuffer b = new StringBuffer(); b.append(findDataAvailable(subchapters[i][0].toString(), doc)); Chunk dataset = new Chunk(b.toString()); dataset.setFont(font); phrase.add(dataset); break; } case attachments: { PdfPTable table = getAttachmentsAsTable(doc, "attachment_training_data"); if (table != null) { phrase.add(new Paragraph("Training set(s)")); phrase.add(table); } table = getAttachmentsAsTable(doc, "attachment_validation_data"); if (table != null) { phrase.add(new Paragraph("Test set(s)")); phrase.add(table); } table = getAttachmentsAsTable(doc, "attachment_documents"); if (table != null) { phrase.add(new Paragraph("Supporting information")); phrase.add(table); } break; /* StringBuffer b = new StringBuffer(); b.append("Training set(s)\n"); b.append(listAttachments(doc,"attachment_training_data")); b.append("Test set(s)\n"); b.append(listAttachments(doc,"attachment_validation_data")); b.append("Supporting information\n"); b.append(listAttachments(doc,"attachment_documents")); Chunk attachments = new Chunk(b.toString()); attachments.setFont(font); phrase.add(attachments); break; */ } case reference: { try { String value = listNodeAttributes(doc, subchapters[i][0].toString(), subchapters[i][3].toString(), subchapters[i][4].toString(), (String[]) subchapters[i][5], (Boolean) subchapters[i][6]); Chunk reference = new Chunk(value); reference.setFont(font); align = Paragraph.ALIGN_JUSTIFIED; phrase.add(reference); } catch (Exception x) { } break; } } Paragraph p = new Paragraph(phrase); p.setAlignment(align); document.add(p); float pos = writer.getVerticalPosition(false); /* cb.moveTo(0, pos); cb.lineTo(PageSize.A4.width(), pos); cb.stroke(); */ if (pos < 90) document.newPage(); } } catch (Exception x) { x.printStackTrace(); } document.close(); } catch (Exception e) { e.printStackTrace(); System.err.println(e.getMessage()); } }
From source file:ca.sqlpower.architect.profile.output.ProfilePDFFormat.java
License:Open Source License
/** * Outputs a PDF file report of the data in drs to the given * output stream./* w ww.ja va 2 s . c om*/ * @throws SQLObjectException * @throws IllegalAccessException * @throws InstantiationException */ public void format(OutputStream out, List<ProfileResult> profileResults) throws DocumentException, IOException, SQLException, SQLObjectException, InstantiationException, IllegalAccessException, ClassNotFoundException { final int minRowsTogether = 1; // counts smaller than this are considered orphan/widow final int mtop = 50; // margin at top of page (in points) final int mbot = 50; // margin at bottom of page (page numbers are below this) // final int pbot = 20; // padding between bottom margin and bottom of body text final int mlft = 50; // margin at left side of page final int mrgt = 50; // margin at right side of page final Rectangle pagesize = PageSize.LETTER.rotate(); final Document document = new Document(pagesize, mlft, mrgt, mtop, mbot); final PdfWriter writer = PdfWriter.getInstance(document, out); final float fsize = 6f; // the font size to use in the table body final BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.WINANSI, BaseFont.NOT_EMBEDDED); document.addTitle("Table Profiling Report"); document.addSubject("Tables: " + profileResults); document.addAuthor(System.getProperty("user.name")); document.addCreator("Power*Architect version " + ArchitectVersion.APP_FULL_VERSION); document.open(); // vertical position where next element should start // (bottom is 0; top is pagesize.height()) float pos = pagesize.height() - mtop; final PdfContentByte cb = writer.getDirectContent(); final PdfTemplate nptemplate = cb.createTemplate(50, 50); writer.setPageEvent(new PdfPageEventHelper() { // prints the "page N of <template>" footer public void onEndPage(PdfWriter writer, Document document) { int pageN = writer.getPageNumber(); String text = "Page " + pageN + " of "; float len = bf.getWidthPoint(text, fsize - 2); cb.beginText(); cb.setFontAndSize(bf, fsize - 2); cb.setTextMatrix(pagesize.width() / 2 - len / 2, mbot / 2); cb.showText(text); cb.endText(); cb.addTemplate(nptemplate, pagesize.width() / 2 - len / 2 + len, mbot / 2); } public void onCloseDocument(PdfWriter writer, Document document) { nptemplate.beginText(); nptemplate.setFontAndSize(bf, fsize - 2); nptemplate.showText(String.valueOf(writer.getPageNumber() - 1)); nptemplate.endText(); } }); document.add(new Paragraph("SQL Power Architect Profiling Report")); document.add(new Paragraph("Generated " + new java.util.Date() + " by " + System.getProperty("user.name"))); float[] widths = new float[totalColumn]; // widths of widest cells per row in pdf table LinkedList<ProfileTableStructure> profiles = new LinkedList<ProfileTableStructure>(); // 1 table per profile result Font f = new Font(bf, fsize); // This ddl generator is set to the appropriate ddl generator for the source database // every time we encounter a table profile result in the list. DDLGenerator ddlg = null; PdfPTable pdfTable = null; for (ProfileResult result : profileResults) { if (result instanceof TableProfileResult) { TableProfileResult tableResult = (TableProfileResult) result; pdfTable = new PdfPTable(widths.length); pdfTable.setWidthPercentage(100f); ProfileTableStructure oneProfile = makeNextTable(tableResult, pdfTable, bf, fsize, widths); profiles.add(oneProfile); ddlg = tableResult.getDDLGenerator(); } else if (result instanceof ColumnProfileResult) { final ColumnProfileResult columnResult = (ColumnProfileResult) result; TableProfileResult tResult = columnResult.getParent(); addBodyRow(tResult, columnResult, ddlg, pdfTable, bf, f, fsize, widths); } } double allowedTableSize = pagesize.width() - mrgt - mlft; double totalWidths = 0; for (int i = 0; i < headings.length; i++) { if (!columnsToTruncate.contains(headings[i])) { widths[i] += PIXELS_PER_BORDER; totalWidths += widths[i]; } } truncateLength = (allowedTableSize - totalWidths - (PIXELS_PER_BORDER * (columnsToTruncate.size()))) / columnsToTruncate.size(); logger.debug("Truncate length is " + truncateLength); widths = new float[totalColumn]; profiles = new LinkedList<ProfileTableStructure>(); // 1 table per profile result for (ProfileResult result : profileResults) { if (result instanceof TableProfileResult) { TableProfileResult tableResult = (TableProfileResult) result; pdfTable = new PdfPTable(widths.length); pdfTable.setWidthPercentage(100f); ProfileTableStructure oneProfile = makeNextTable(tableResult, pdfTable, bf, fsize, widths); profiles.add(oneProfile); ddlg = tableResult.getDDLGenerator(); } else if (result instanceof ColumnProfileResult) { final ColumnProfileResult columnResult = (ColumnProfileResult) result; TableProfileResult tResult = columnResult.getParent(); addBodyRow(tResult, columnResult, ddlg, pdfTable, bf, f, fsize, widths); } } for (int i = 0; i < headings.length; i++) { widths[i] += PIXELS_PER_BORDER; } // add the PdfPTables to the document; try to avoid orphan and widow rows pos = writer.getVerticalPosition(true) - fsize; logger.debug("Starting at pos=" + pos); boolean newPageInd = true; for (ProfileTableStructure profile : profiles) { pdfTable = profile.getMainTable(); pdfTable.setTotalWidth(pagesize.width() - mrgt - mlft); pdfTable.setWidths(widths); resetHeaderWidths(profile, widths); int startrow = pdfTable.getHeaderRows(); int endrow = startrow; // current page will contain header+startrow..endrow /* no other rows in the table, just the header, and the header may * contain error message */ if (endrow == pdfTable.size()) { pos = pdfTable.writeSelectedRows(0, pdfTable.getHeaderRows(), mlft, pos, cb); continue; } while (endrow < pdfTable.size()) { // figure out how many body rows fit nicely on the page float endpos = pos - calcHeaderHeight(pdfTable); // y position of page number# = (mbot/2+fsize) while ((endpos - pdfTable.getRowHeight(endrow)) >= (mbot / 2 + fsize + 2) && endrow < pdfTable.size()) { endpos -= pdfTable.getRowHeight(endrow); endrow++; } // adjust for orphan rows. Might create widows or make // endrow < startrow, which is handled later by deferring the table if (endrow < pdfTable.size() && endrow + minRowsTogether >= pdfTable.size()) { // page # maybe fall into table area, but usually that's column of // min value, usually that's enough space for both, or we should // disable page # on this page if (endrow + 1 == pdfTable.size() && endpos - pdfTable.getRowHeight(endrow) > 10) { // short by 1 row.. just squeeze it in endrow = pdfTable.size(); } else { // more than 1 row remains: shorten this page so orphans aren't lonely endrow = pdfTable.size() - minRowsTogether; } } if (endrow == pdfTable.size() || endrow - startrow >= minRowsTogether) { // this is the end of the table, or we have enough rows to bother printing pos = pdfTable.writeSelectedRows(0, pdfTable.getHeaderRows(), mlft, pos, cb); pos = pdfTable.writeSelectedRows(startrow, endrow, mlft, pos, cb); startrow = endrow; newPageInd = false; } else { // not the end of the table and not enough rows to print out if (newPageInd) throw new IllegalStateException( "PDF Page is not large engouh to display " + minRowsTogether + " row(s)"); endrow = startrow; } // new page if necessary (that is, when we aren't finished the table yet) if (endrow != pdfTable.size()) { document.newPage(); pos = pagesize.height() - mtop; newPageInd = true; } } } document.close(); }
From source file:dinamica.AbstractPDFOutput.java
License:LGPL
/** * Calcula si una tabla (mas un espacio extra) cabe en lo que queda de pagina. * Este metodo compensa la desaparicion del metodo fitsPage que IText tenia * hasta la version 2.0.6, y es necesario en reportes tipo master/detail o parent/child, * fue necesario crear este metodo para poder usar el ultimo IText (v2.1.2). * @param doc Document ya inicializado/*w ww .ja va 2s .c om*/ * @param docWriter PdfWriter ya inicializado * @param tbl La tabla, su ancho debe haber sido definido con setTotalWidth, es decir usando * un ancho absoluto, no porcentajes, de otro modo este metodo no hara un calculo correcto, por * una limitacion de IText. * @param extra Espacio extra para el calculo si se desea, sino pase cero. * @return */ protected boolean fitsPage(Document doc, PdfWriter docWriter, PdfPTable tbl, int extra) { float a = tbl.getTotalHeight() + extra; float b = doc.bottom(doc.bottomMargin()); float c = docWriter.getVerticalPosition(true); return ((c - b) > a); }
From source file:org.jivesoftware.openfire.reporting.graph.GraphServlet.java
License:Open Source License
private void writePDFContent(HttpServletRequest request, HttpServletResponse response, JFreeChart charts[], Statistic[] stats, long starttime, long endtime, int width, int height) throws IOException { try {/* w w w. j av a 2 s . c om*/ Document document = new Document(PageSize.A4, 50, 50, 50, 50); ByteArrayOutputStream baos = new ByteArrayOutputStream(); PdfWriter writer = PdfWriter.getInstance(document, baos); writer.setPageEvent(new PDFEventListener(request)); document.open(); int index = 0; int chapIndex = 0; for (Statistic stat : stats) { String serverName = XMPPServer.getInstance().getServerInfo().getXMPPDomain(); String dateName = JiveGlobals.formatDate(new Date(starttime)) + " - " + JiveGlobals.formatDate(new Date(endtime)); Paragraph paragraph = new Paragraph(serverName, FontFactory.getFont(FontFactory.HELVETICA, 18, Font.BOLD)); document.add(paragraph); paragraph = new Paragraph(dateName, FontFactory.getFont(FontFactory.HELVETICA, 14, Font.PLAIN)); document.add(paragraph); document.add(Chunk.NEWLINE); document.add(Chunk.NEWLINE); Paragraph chapterTitle = new Paragraph(++chapIndex + ". " + stat.getName(), FontFactory.getFont(FontFactory.HELVETICA, 16, Font.BOLD)); document.add(chapterTitle); // total hack: no idea what tags people are going to use in the description // possibly recommend that we only use a <p> tag? String[] paragraphs = stat.getDescription().split("<p>"); for (String s : paragraphs) { Paragraph p = new Paragraph(s); document.add(p); } document.add(Chunk.NEWLINE); PdfContentByte contentByte = writer.getDirectContent(); PdfTemplate template = contentByte.createTemplate(width, height); Graphics2D graphs2D = template.createGraphics(width, height, new DefaultFontMapper()); Rectangle2D rectangle2D = new Rectangle2D.Double(0, 0, width, height); charts[index++].draw(graphs2D, rectangle2D); graphs2D.dispose(); float x = (document.getPageSize().width() / 2) - (width / 2); contentByte.addTemplate(template, x, writer.getVerticalPosition(true) - height); document.newPage(); } document.close(); // setting some response headers response.setHeader("Expires", "0"); response.setHeader("Cache-Control", "must-revalidate, post-check=0, pre-check=0"); response.setHeader("Pragma", "public"); // setting the content type response.setContentType("application/pdf"); // the contentlength is needed for MSIE!!! response.setContentLength(baos.size()); // write ByteArrayOutputStream to the ServletOutputStream ServletOutputStream out = response.getOutputStream(); baos.writeTo(out); out.flush(); } catch (DocumentException e) { Log.error("error creating PDF document: " + e.getMessage()); } }
From source file:s2s.report.Report.java
License:GNU General Public License
public float getAvailablePageSpace(Document doc, PdfWriter writer) { // Determina lo spazio ancora disponibile, in verticale, sulla pagina corrente. // Il metodo va chiamato preferibilmente a documento aperto. // Al contrario sembra riportare un valore errato. // Tiene automaticamente anche conto degli evenatuali margini (superiore ed inferiore) // impostati per il documento, sottraendoli allo spazio disponibile return writer.getVerticalPosition(true); }