JTables

[freesoft_2000]

Hi everyone,

I am currently trying to print a multipage JTable but the the thing is on the left hand side of the JTable does not have any grid lines and i have tried to draw a rectangle around the jTable before printing it but nothing is happening.

Another thing is that when the JTable goes on the next page for printing there are trailing grid lines on the previous page. I have tried clipping and translating it but nothing works.

You guys can try removing the painting of the Table Headers to get a clearer picture if you want

Here is the code with a mini test program so you guys can run the program and see what i mean

import java.awt.*;
import java.awt.image.*;
import java.io.*;
import java.util.*;
import java.awt.print.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;
import javax.imageio.*;

public class JTables2 implements ActionListener

{

	JFrame fr = new JFrame ("Frame");

	JButton Button12 = new JButton("Print");

	DefaultTableModel TableModel1 = new DefaultTableModel(20, 30);

	//The below command line sets the table model to the JTable

	JTable Table1 = new JTable(TableModel1);

	JScrollPane ScrollPane1 = new JScrollPane(Table1, ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS, 
	ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);  

	Dimension Size1 = new Dimension();

	PrinterJob prnJob;
	PageFormat format;

	public void initialize ()
	{ 
		Container pane = fr.getContentPane();
		pane.setLayout(new FlowLayout());
		fr.setSize(250,300);
		fr.setLocation(300,300);
		fr.setBackground(Color.lightGray);
		//The below command line must be set to false so that user 
		//resizing is allowed

		Table1.setAutoCreateColumnsFromModel(false);
		Size1.width = 350;
		Size1.height = 250;
		ScrollPane1.setPreferredSize(Size1);
		Table1.setModel(TableModel1);
		Table1.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
		Table1.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); 

		pane.add(ScrollPane1);
		pane.add(Button12);

		fr.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		Button12.addActionListener(this);
		fr.pack();
		fr.setVisible(true);
	}


	public void printData () 
	{
		//This function prints the contents of the JTable

		StyledTextTableRenderer2 StyledTextTableRenderer1 = new StyledTextTableRenderer2();
		StyledTextTableRenderer1.settable(Table1);

		try 
		{
			//The below command line gets the printer job

			prnJob = PrinterJob.getPrinterJob();

			if(format == null)
			{
				format = prnJob.defaultPage();
			}

			//The below command line sets the printable interface and the
			//format for the page to be printed

			prnJob.setPrintable(StyledTextTableRenderer1, format);

			//The below command line calls the native print dialog

			if(prnJob.printDialog() == false)
			{
				return;
			}

			//The below command line prints out the document if the user clicked Ok

			prnJob.print();
		}

		catch (PrinterException e) 
		{

		}

	}

	public void actionPerformed(ActionEvent event)
	{
		JComponent b = (JComponent)event.getSource();

		if(b == Button12)
		{
			printData();
			fr.repaint();
		}

	}

	public static void main(String args[])
	{
		JTables2 a = new JTables2(); 
		a.initialize();
	}
}

class StyledTextTableRenderer2 implements Printable
{
	JTable Table1 = new JTable();

	public int print(Graphics g, PageFormat pageFormat, int pageIndex) throws PrinterException 
	{

		Graphics2D  g2 = (Graphics2D) g;
		g2.setColor(Color.black);

		int fontHeight = g2.getFontMetrics().getHeight();
		int fontDesent = g2.getFontMetrics().getDescent();

		//leave room for page number

		double pageHeight = pageFormat.getImageableHeight() - fontHeight;
		double pageWidth = pageFormat.getImageableWidth();

		double tableWidth = (double)Table1.getColumnModel().getTotalColumnWidth();

		double headerHeightOnPage = Table1.getTableHeader().getHeight();
		double tableWidthOnPage = tableWidth;

		double oneRowHeight = (Table1.getRowHeight()+ Table1.getRowMargin());
		int numRowsOnAPage = (int)((pageHeight-headerHeightOnPage)/ oneRowHeight);
		double pageHeightForTable = oneRowHeight * numRowsOnAPage;
		int totalNumPages= (int)Math.ceil(((double)Table1.getRowCount())/numRowsOnAPage);

		if(pageIndex>=totalNumPages) 
		{
			Table1.setShowGrid(true);

			return NO_SUCH_PAGE;
		}

		g2.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
		//bottom center

		g2.drawString("Page "+ (pageIndex+1), (int)pageWidth/2-35, (int)(pageHeight
		+ fontHeight-fontDesent));

		g2.translate(0f,headerHeightOnPage);
		g2.translate(0f,-pageIndex * pageHeightForTable);

		//If this piece of the table is smaller 
		//than the size available,
		//clip to the appropriate bounds.

		if(pageIndex + 1 == totalNumPages) 
		{
			int lastRowPrinted = numRowsOnAPage * pageIndex;
			int numRowsLeft = Table1.getRowCount() - lastRowPrinted;
			g2.setClip(0,(int)(pageHeightForTable * pageIndex), (int) Math.ceil(tableWidthOnPage),
			(int)Math.ceil(oneRowHeight * numRowsLeft));
		}

		//else clip to the entire area available

		else
		{    
			g2.setClip(0, (int)(pageHeightForTable*pageIndex), (int) Math.ceil(tableWidthOnPage),
			(int) Math.ceil(pageHeightForTable));        
		}
//This is where i try to draw the rectangle around 
//the JTable
		g2.drawRect(0,(int)headerHeightOnPage,(int)tableWidthOnPage, (int)((pageHeightForTable)* Table1.getRowCount()));

		Table1.paint(g2);
		g2.translate(0f, pageIndex * pageHeightForTable);
		g2.translate(0f, -headerHeightOnPage);
		g2.setClip(0, 0, (int)Math.ceil(tableWidthOnPage),(int)Math.ceil(headerHeightOnPage));
		Table1.getTableHeader().paint(g2);
		//paint header at top

		/*
g2.translate(0f, pageIndex * pageHeightForTable);
g2.setColor(Color.gray);
g2.drawRect(0,0,(int)tableWidthOnPage, (int)((pageHeightForTable)* Table1.getRowCount()));
*/
		System.out.println("" + pageHeightForTable);

		return Printable.PAGE_EXISTS;
	}

	public void settable(JTable table)
	{
		//This function gets the JTable and its table model

		Table1 = table;
		Table1.setShowGrid(false);
	}

}

Basically i am trying to print a JTable with the option of table headers as a complete grid and withou any trainling lines

I know that 1.5 now has printing but i need to use this way of printing(i.e. by using the printable interface) for the program to suit a special kind of need

Any help is greatly appreciated

Thank You

Yous Sincerely

Richard West

[Easter Bunny]

chech this out, hopefully it's what you want. ;)

http://java.sun.com/developer/onlineTraining/Programming/JDCBook/advprint.html

[freesoft_2000]

Hi everyone,

Thanks easter bunny for answering to my post but that link you posted was exactly the code that i used for the printing of the JTable. The thing is that i am trying to remove the scaling feature( a must for my needs). The thing is that on the left hand side of the JTable and on top of the JTable(if i remove painting of all headers there seems to be no rectangle drawn around it so i tried drwing my own rectangle and it does not seem to work and also there are trailing grid lines as the table goes to the next page.

Did you encounter this? What do you suggest is a good way of overcoming this? Do you have any other links similar to the one you have of printing multi-page JTable??

Any help is greatly appreciated

Thank You

Yours Sincerely

Richard West

[Easter Bunny]

ok, i only got that link a couple of days ago at another forum. the other link they gave me was http://www.javaworld.com/javaworld/jw-10-2000/jw-1020-print.html . haven't tried any of it yet, so can't really tell if it worked for me. :) just from what you say here, it sounds like it's printing outside the "printable area" (see link above).

i'm busy writing a stock issues program for work (if my boss likes it, we might just use it, else it will be for practise). i'll also need to print jtables, so as soon as i get it right, i'll show you what i did... oh, and i also need a printer... hmmm....

[freesoft_2000]

Hi everyone,

i'll also need to print jtables, so as soon as i get it right, i'll show you what i did

Thanks please keep me posted at this forum on this thread.

Thank You

Yours Sincerely

Richard West