There's a lot of misunderstandings here: - until you do a document.add(mct) you are just gathering text in mct. A mct.nextColumn() will do nothing
- onParagraphEnd isn't called in mct If you need that fine control use a ColumnText. Paulo > -----Original Message----- > From: raymond moesker [mailto:[EMAIL PROTECTED] > Sent: Monday, February 06, 2006 8:24 AM > To: Paulo Soares > Subject: RE: [iText-questions] MultiColumnText next column or > next page problem > > ok here is some code to reproduce my problem: > import java.awt.Color; > import java.io.ByteArrayInputStream; > import java.io.ByteArrayOutputStream; > import java.io.File; > import java.io.FileOutputStream; > import com.lowagie.text.Document; > import com.lowagie.text.Element; > import com.lowagie.text.Font; > import com.lowagie.text.FontFactory; > import com.lowagie.text.PageSize; > import com.lowagie.text.Paragraph; > import com.lowagie.text.Rectangle; > import com.lowagie.text.pdf.BaseFont; > import com.lowagie.text.pdf.MultiColumnText; > import com.lowagie.text.pdf.PdfEncryptor; > import com.lowagie.text.pdf.PdfReader; > import com.lowagie.text.pdf.PdfWriter; > public class Gen > { > String RGBBackground = "ffffff"; > public byte[] generatePdf() > { > byte[] pdfOut = null; > PdfReader reader = null; > ByteArrayOutputStream baos = new ByteArrayOutputStream(); > ByteArrayOutputStream finBaos = new ByteArrayOutputStream(); > try > { > // Prepare the fonts > Document document = new Document(PageSize.A4, 50, 50, 70, 70); > float bottom = document.bottomMargin(); > PdfWriter writer = PdfWriter.getInstance(document, baos); > // use PageEvent (extends PdfPageEventHelper) for inserting the > // header > // and footer > MyPageEvent pageEvent = new MyPageEvent(); > writer.setPageEvent(pageEvent); > > Rectangle page = document.getPageSize(); > try > { > // parse with radix at 16(hex) > int rgb = Integer.parseInt(RGBBackground, 16); > page.setBackgroundColor(new java.awt.Color(rgb)); > } > catch (NumberFormatException nfe) > { > // fallback to white > page.setBackgroundColor(java.awt.Color.WHITE); > } > document.open(); > > // create the subheader > document.add(makeParagraph(" ", 10, Element.ALIGN_LEFT, > Font.NORMAL, false, Color.BLACK)); > document.add(makeParagraph("head", 10, Element.ALIGN_LEFT, > Font.BOLD, false, Color.BLACK)); > document.add(makeParagraph("\n\n", 10, Element.ALIGN_LEFT, > Font.NORMAL, false, Color.BLACK)); > // set up 2 even columns with 10pt space between > MultiColumnText mct = new MultiColumnText(); > mct.addRegularColumns(document.left(), document.right(), 10f, 2); > // Write body > int size=15; > for (int i = 0; i < size; i++) > { > mct.addElement(new Paragraph("GALLIA est omnis divisa in > partes,GALLIA est omnis divisa in partes,GALLIA est omnis > divisa in partes ,GALLIA est omnis divisa in partes ,GALLIA > est omnis divisa in partes ,GALLIA est omnis divisa in partes > ,GALLIA est omnis divisa in partes ,GALLIA est omnis divisa > in partes ,GALLIA est omnis divisa in partes ")); > if (i < size - 1) > { > // Phrase p = new Phrase("\n\ncccc", fontHelvetica10); > Element p = > makeParagraph("\n______________________________________\n\n", > 8, Element.ALIGN_CENTER, > Font.NORMAL, false, Color.GRAY); > > mct.addElement(p); > > mct.addElement(new Paragraph("GALLIA est omnis divisa > in partes ")); > if(bottom-pageEvent.pPosition<30) > { > mct.nextColumn(); > } > > } > } > > document.add(mct); > document.close(); > reader = new PdfReader(baos.toByteArray()); > PdfEncryptor.encrypt(reader, finBaos, null, null, > PdfWriter.AllowPrinting, false); > pdfOut = finBaos.toByteArray(); > baos.flush(); > finBaos.flush(); > baos.close(); > finBaos.close(); > } > catch (Exception e) > { > System.out.print(e); > } > return pdfOut; > } > public Element makeParagraph(String text, int size, int > alignment, int type, boolean fixed, Color r) > { > Font font = null; > BaseFont fixedfont = null; > if (!fixed) > { > font = FontFactory.getFont("Helvetica", size, type, r); > } > else > { > try > { > fixedfont = BaseFont.createFont(BaseFont.COURIER, > BaseFont.CP1252, BaseFont.NOT_EMBEDDED); > } > catch (Exception e) > { > e.printStackTrace(); > } > font = new Font(fixedfont, size, type, r); > } > Paragraph p = new Paragraph(text, font); > p.setAlignment(alignment); > p.setLeading(font.size() * 1.2f); > > return p; > } > public static void main(String[] args) > { > Gen pg = new Gen(); > byte[] b = pg.generatePdf(); > > ByteArrayInputStream ba = new ByteArrayInputStream(b); > FileOutputStream fos = null; > try > { > fos = new FileOutputStream(new File("c:/test.pdf")); > fos.write(b); > fos.flush(); > fos.close(); > ba.close(); > } > catch (Exception e) > { > System.out.println(e); > } > > System.out.println("ready"); > } > } > > ////////////////////////////////////////////////////// > > import com.lowagie.text.Document; > import com.lowagie.text.pdf.PdfPageEventHelper; > import com.lowagie.text.pdf.PdfWriter; > public class MyPageEvent extends PdfPageEventHelper > { > public float pPosition; > public MyPageEvent() > { > } > public void onParagraphEnd(PdfWriter writer, Document > document, float paragraphPosition) > { > pPosition = paragraphPosition; > System.out.println("trigger"); > } > } > > //////////////////////////////// > > as you can see it prints out 3 times "trigger" at document level. > > gr ray > > Paulo Soares <[EMAIL PROTECTED]> wrote: > > Some code is required to reproduce the problem. > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On > > Behalf Of raymond moesker > > Sent: Thursday, February 02, 2006 3:58 PM > > To: itext-questions@lists.sourceforge.net > > Subject: [iText-questions] MultiColumnText next column or > > next page problem > > > > Some background info: > > I'm trying to add articles to a PDF file using the > > MultiColumnText class. This works fine. > > My problem is when an article starts at the almost end of a > > column it has to move to the next column or next page if it > > is the second column. > > > > What I do: > > I'm opening a Document.(I'm using a PageEvent for adding the > > footer and header) Then I create a MultiColumnText. This > > MultiColumnText gets filled with articles and after it's > > filled it's added to the Document. > > > > My problems: > > 1. > > When I'm using the mct.nextColumn() function within the > > MultiColumnText it only works for the first page. > > > > 2. > > My first thought was to use a onParagraphEnd(PageEvent) to > > calculate the end of a Paragraph in a MultiColumnText. This > > only seems to work at the Document level. > > > > > > Does someone know a solution for my problem?(when a article > > starts at the almost end of a column it has to move to the > > next column or next page if it is the second column.) > > > > Thanks Ray > > > > ________________________________ > > > > Yahoo! Autos > > ylc=X3oDMTEzcGlrdGY5BF9TAzk3MTA3MDc2BHNlYwNtYWlsdGFncwRzbGsDMW > > F1dG9z/*http://autos.yahoo.com/index.html> . Looking for a > > sweet ride? Get pricing, reviews, & more on new and used cars. > > > > > ------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. Do you > grep through log files > for problems? Stop! 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