Admin: 1 версия

2010-06-01T05:21:14Z

1 версия

в 17:44, 31 мая 2010

2010-05-31T17:44:27Z

Новая страница

== Create Pdf document from JTable ==



<source lang="java">
import java.awt.BorderLayout;
import java.awt.Graphics2D;
import java.io.FileOutputStream;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTable;
import com.lowagie.text.Document;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfTemplate;
import com.lowagie.text.pdf.PdfWriter;
public class MainClass extends JFrame {
private JTable table;
public static void main(String[] args) throws Exception {
MainClass frame = new MainClass();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
}
public MainClass() throws Exception {
getContentPane().setLayout(new BorderLayout());
Object[][] data = { { "A", "B", "C", new Integer(5), new Boolean(false) },
{ "D", "E", "F", new Integer(3), new Boolean(true) } };
String[] columnNames = { "First Name", "Last Name", "Sport", "# of Years", "Vegetarian" };
table = new JTable(data, columnNames);
JPanel tPanel = new JPanel(new BorderLayout());
tPanel.add(table.getTableHeader(), BorderLayout.NORTH);
tPanel.add(table, BorderLayout.CENTER);
getContentPane().add(tPanel, BorderLayout.CENTER);
Document document = new Document();
PdfWriter writer;
writer = PdfWriter.getInstance(document, new FileOutputStream("my_jtable_shapes.pdf"));
// writer = PdfWriter.getInstance(document, new
// FileOutputStream("my_jtable_fonts.pdf"));
document.open();
PdfContentByte cb = writer.getDirectContent();
PdfTemplate tp = cb.createTemplate(500, 500);
Graphics2D g2;
g2 = tp.createGraphicsShapes(500, 500);
// g2 = tp.createGraphics(500, 500);
table.print(g2);
g2.dispose();
cb.addTemplate(tp, 30, 300);
// step 5: we close the document
document.close();
}
}</source>



== JTextPane To Pdf ==



<source lang="java">
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.geom.AffineTransform;
import java.io.FileOutputStream;
import javax.swing.Action;
import javax.swing.JButton;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.text.MutableAttributeSet;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledEditorKit;
import com.lowagie.text.Document;
import com.lowagie.text.pdf.DefaultFontMapper;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfWriter;
public class MainClass {
int inch = Toolkit.getDefaultToolkit().getScreenResolution();
float pixelToPoint = (float) 72 / (float) inch;
JTextPane textPane;
public MainClass() {
JFrame frame = new JFrame();
textPane = new JTextPane();
JScrollPane scrollPane = new JScrollPane(textPane);
JPanel north = new JPanel();
JButton print = new JButton("Print");
print.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
paintToPDF(textPane);
}
});
JMenuBar menu = new JMenuBar();
JMenu styleMenu = new JMenu();
styleMenu.setText("Style");
Action boldAction = new BoldAction();
boldAction.putValue(Action.NAME, "Bold");
styleMenu.add(boldAction);
Action italicAction = new ItalicAction();
italicAction.putValue(Action.NAME, "Italic");
styleMenu.add(italicAction);
menu.add(styleMenu);
north.add(menu);
north.add(print);
frame.getContentPane().setLayout(new BorderLayout());
frame.getContentPane().add(north, BorderLayout.NORTH);
frame.getContentPane().add(scrollPane, BorderLayout.CENTER);
frame.setSize(800, 500);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
public static void main(String[] args) {
new MainClass();
}
public void paintToPDF(JTextPane ta) {
try {
ta.setBounds(0, 0, (int) convertToPixels(612 - 58), (int) convertToPixels(792 - 60));
Document document = new Document();
FileOutputStream fos = new FileOutputStream("2.pdf");
PdfWriter writer = PdfWriter.getInstance(document, fos);
document.setPageSize(new com.lowagie.text.Rectangle(612, 792));
document.open();
PdfContentByte cb = writer.getDirectContent();
cb.saveState();
cb.concatCTM(1, 0, 0, 1, 0, 0);
DefaultFontMapper mapper = new DefaultFontMapper();
mapper.insertDirectory("c:/windows/fonts");
Graphics2D g2 = cb.createGraphics(612, 792, mapper, true, .95f);
AffineTransform at = new AffineTransform();
at.translate(convertToPixels(20), convertToPixels(20));
at.scale(pixelToPoint, pixelToPoint);
g2.transform(at);
g2.setColor(Color.WHITE);
g2.fill(ta.getBounds());
Rectangle alloc = getVisibleEditorRect(ta);
ta.getUI().getRootView(ta).paint(g2, alloc);
g2.setColor(Color.BLACK);
g2.draw(ta.getBounds());
g2.dispose();
cb.restoreState();
document.close();
fos.flush();
fos.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public float convertToPoints(int pixels) {
return (float) (pixels * pixelToPoint);
}
public float convertToPixels(int points) {
return (float) (points / pixelToPoint);
}
protected Rectangle getVisibleEditorRect(JTextPane ta) {
Rectangle alloc = ta.getBounds();
if ((alloc.width > 0) && (alloc.height > 0)) {
alloc.x = alloc.y = 0;
Insets insets = ta.getInsets();
alloc.x += insets.left;
alloc.y += insets.top;
alloc.width -= insets.left + insets.right;
alloc.height -= insets.top + insets.bottom;
return alloc;
}
return null;
}
}
class BoldAction extends StyledEditorKit.StyledTextAction {
private static final long serialVersionUID = 9174670038684056758L;
public BoldAction() {
super("font-bold");
}
public String toString() {
return "Bold";
}
public void actionPerformed(ActionEvent e) {
JEditorPane editor = getEditor(e);
if (editor != null) {
StyledEditorKit kit = getStyledEditorKit(editor);
MutableAttributeSet attr = kit.getInputAttributes();
boolean bold = (StyleConstants.isBold(attr)) ? false : true;
SimpleAttributeSet sas = new SimpleAttributeSet();
StyleConstants.setBold(sas, bold);
setCharacterAttributes(editor, sas, false);
}
}
}
class ItalicAction extends StyledEditorKit.StyledTextAction {
private static final long serialVersionUID = -1428340091100055456L;
public ItalicAction() {
super("font-italic");
}
public String toString() {
return "Italic";
}
public void actionPerformed(ActionEvent e) {
JEditorPane editor = getEditor(e);
if (editor != null) {
StyledEditorKit kit = getStyledEditorKit(editor);
MutableAttributeSet attr = kit.getInputAttributes();
boolean italic = (StyleConstants.isItalic(attr)) ? false : true;
SimpleAttributeSet sas = new SimpleAttributeSet();
StyleConstants.setItalic(sas, italic);
setCharacterAttributes(editor, sas, false);
}
}
}</source>

← Предыдущая	Версия 05:21, 1 июня 2010
(нет различий)

Java Tutorial/PDF/to PDF - История изменений

Admin: 1 версия

в 17:44, 31 мая 2010