Print af ny linje?

skriv lige koden

Jeg har nogle gange brugt denne klasse, når jeg skulle udskrive.
Den bruger dog JEditorPane istedet for JTextArea...
Men så kan den også udskrive al formateringen af teksten...

import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.Shape;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import javax.swing.JEditorPane;
import javax.swing.text.Document;
import javax.swing.text.PlainDocument;
import javax.swing.text.View;
import javax.swing.text.html.HTMLDocument;

public class DocumentRenderer implements Printable {

  protected int currentPage = -1;              //Used to keep track of when
                                                //the page to print changes.

  protected JEditorPane jeditorPane;            //Container to hold the
                                                //Document. This object will
                                                //be used to lay out the
                                                //Document for printing.

  protected double pageEndY = 0;                //Location of the current page
                                                //end.

  protected double pageStartY = 0;              //Location of the current page
                                                //start.

  protected boolean scaleWidthToFit = true;    //boolean to allow control over
                                                //whether pages too wide to fit
                                                //on a page will be scaled.

  protected PageFormat pFormat;
  protected PrinterJob pJob;

/*  The constructor initializes the pFormat and PJob variables.
*/
  public DocumentRenderer() {
    pFormat = new PageFormat();
    pJob = PrinterJob.getPrinterJob();
  }

/*  Method to get the current Document
*/
  public Document getDocument() {
    if (jeditorPane != null) return jeditorPane.getDocument();
    else return null;
  }

/*  Method to get the current choice the width scaling option.
*/
  public boolean getScaleWidthToFit() {
    return scaleWidthToFit;
  }

/*  pageDialog() displays a page setup dialog.
*/
  public void pageDialog() {
    pFormat = pJob.pageDialog(pFormat);
  }


  public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) {
    double scale = 1.0;
    Graphics2D graphics2D;
    View rootView;
//  I
    graphics2D = (Graphics2D) graphics;
//  II
    jeditorPane.setSize((int) pageFormat.getImageableWidth(),Integer.MAX_VALUE);
    jeditorPane.validate();
//  III
    rootView = jeditorPane.getUI().getRootView(jeditorPane);
//  IV
    if ((scaleWidthToFit) && (jeditorPane.getMinimumSize().getWidth() >
    pageFormat.getImageableWidth())) {
      scale = pageFormat.getImageableWidth()/
      jeditorPane.getMinimumSize().getWidth();
      graphics2D.scale(scale,scale);
    }
//  V
    graphics2D.setClip((int) (pageFormat.getImageableX()/scale),
    (int) (pageFormat.getImageableY()/scale),
    (int) (pageFormat.getImageableWidth()/scale),
    (int) (pageFormat.getImageableHeight()/scale));
//  VI
    if (pageIndex > currentPage) {
      currentPage = pageIndex;
      pageStartY += pageEndY;
      pageEndY = graphics2D.getClipBounds().getHeight();
    }
//  VII
    graphics2D.translate(graphics2D.getClipBounds().getX(),
    graphics2D.getClipBounds().getY());
//  VIII
    Rectangle allocation = new Rectangle(0,
    (int) -pageStartY,
    (int) (jeditorPane.getMinimumSize().getWidth()),
    (int) (jeditorPane.getPreferredSize().getHeight()));
//  X
    if (printView(graphics2D,allocation,rootView)) {
      return Printable.PAGE_EXISTS;
    }
    else {
      pageStartY = 0;
      pageEndY = 0;
      currentPage = -1;
      return Printable.NO_SUCH_PAGE;
    }
  }

/*  print(HTMLDocument) is called to set an HTMLDocument for printing.
*/
  public void print(HTMLDocument htmlDocument) {
    setDocument(htmlDocument);
    printDialog();
  }

/*  print(JEditorPane) prints a Document contained within a JEDitorPane.
*/
  public void print(JEditorPane jedPane) {
    setDocument(jedPane);
    printDialog();
  }

/*  print(PlainDocument) is called to set a PlainDocument for printing.
*/
  public void print(PlainDocument plainDocument) {
    setDocument(plainDocument);
    printDialog();
  }

/*  A protected method, printDialog(), displays the print dialog and initiates
    printing in response to user input.
*/
  protected void printDialog() {
    if (pJob.printDialog()) {
      pJob.setPrintable(this,pFormat);
      try {
        pJob.print();
      }
      catch (PrinterException printerException) {
        pageStartY = 0;
        pageEndY = 0;
        currentPage = -1;
        System.out.println("Error Printing Document");
      }
    }
  }

  protected boolean printView(Graphics2D graphics2D, Shape allocation,
  View view) {
    boolean pageExists = false;
    Rectangle clipRectangle = graphics2D.getClipBounds();
    Shape childAllocation;
    View childView;

    if (view.getViewCount() > 0) {
      for (int i = 0; i < view.getViewCount(); i++) {
        childAllocation = view.getChildAllocation(i,allocation);
        if (childAllocation != null) {
          childView = view.getView(i);
          if (printView(graphics2D,childAllocation,childView)) {
            pageExists = true;
          }
        }
      }
    } else {
//  I
      if (allocation.getBounds().getMaxY() >= clipRectangle.getY()) {
        pageExists = true;
//  II
        if ((allocation.getBounds().getHeight() > clipRectangle.getHeight()) &&
        (allocation.intersects(clipRectangle))) {
          view.paint(graphics2D,allocation);
        } else {
//  III
          if (allocation.getBounds().getY() >= clipRectangle.getY()) {
            if (allocation.getBounds().getMaxY() <= clipRectangle.getMaxY()) {
              view.paint(graphics2D,allocation);
            } else {
//  IV
              if (allocation.getBounds().getY() < pageEndY) {
                pageEndY = allocation.getBounds().getY();
              }
            }
          }
        }
      }
    }
    return pageExists;
  }

/*  Method to set the content type the JEditorPane.
*/
  protected void setContentType(String type) {
    jeditorPane.setContentType(type);
  }

/*  Method to set an HTMLDocument as the Document to print.
*/
  public void setDocument(HTMLDocument htmlDocument) {
    jeditorPane = new JEditorPane();
    setDocument("text/html",htmlDocument);
  }

  public void setDocument(JEditorPane jedPane) {
    jeditorPane = new JEditorPane();
    setDocument(jedPane.getContentType(),jedPane.getDocument());
  }

/*  Method to set a PlainDocument as the Document to print.
*/
  public void setDocument(PlainDocument plainDocument) {
    jeditorPane = new JEditorPane();
    setDocument("text/plain",plainDocument);
  }

/*  Method to set the content type and document of the JEditorPane.
*/
  protected void setDocument(String type, Document document) {
    setContentType(type);
    jeditorPane.setDocument(document);
  }

/*  Method to set the current choice of the width scaling option.
*/
  public void setScaleWidthToFit(boolean scaleWidth) {
    scaleWidthToFit = scaleWidth;
  }
}

Så kalder du den bare:

DocumentRenderer DocumentRenderer = new DocumentRenderer();
DocumentRenderer.print(myTextPane);

mikkelbm det er tekst jeg henter fra database sammen med alt andet data og skriver til Graphics før jeg printer Graphics ud så jeg kan ikke rigtig bruge den kode.

Wow, the above seemed really complicated too..
Just put it in html, then it will linebreak automatically.
example: "<html>text that you want in textarea</html>" or maybe in your case "<html> + sql-thing + </html>" You can also insert linebreaks manually when it's HTML by using <br>.

Er du kommet videre???

ja og det var ikke jeres forslag jeg brugte..