package iTextExamples;

import com.itextpdf.text.Anchor;
import com.itextpdf.text.Chunk;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.PdfWriter;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.HeadlessException;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UIManager.LookAndFeelInfo;
import javax.swing.UnsupportedLookAndFeelException;

/**
 *
 * @author psychocoder
 */
public class FormReportGenPDF extends JFrame implements ActionListener {

    private static final long serialVersionUID = 5754591281120525041L;
    private JPanel panel = null;
    private JLabel fname = null, lname = null, email = null;
    private JTextField fnameField = null, lnameField = null, emailField = null;
    private JButton genPdf = null;

    private final int WIDTH = 400;
    private final int HEIGHT = 300;

    public FormReportGenPDF(String title) throws HeadlessException {
        super(title);
        initializeVariables();
    }

    public FormReportGenPDF() throws HeadlessException {
        setTitle("Form Report Generation in PDF");
        initializeVariables();
    }

    private void initializeVariables() {
        panel = new JPanel(new GridLayout(8, 8, 5, 5));

        fname = new JLabel("First Name");
        lname = new JLabel("Last Name");
        email = new JLabel("Email");

        fnameField = new JTextField();
        lnameField = new JTextField();
        emailField = new JTextField();

        genPdf = new JButton("Create Pdf");

        initGui();
    }

    private void initGui() {
        setSize(new Dimension(WIDTH, HEIGHT));
        this.getInsets().set(10, 10, 10, 10);
        setResizable(false);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        setContentPane(panel);

        panel.setBackground(Color.white);

        fname.setFont(new Font("Arial", Font.BOLD, 14));
        panel.add(fname);
        panel.add(fnameField);

        lname.setFont(new Font("Arial", Font.BOLD, 14));
        panel.add(lname);
        panel.add(lnameField);

        email.setFont(new Font("Arial", Font.BOLD, 14));
        panel.add(email);
        panel.add(emailField);

        panel.add(genPdf);
        genPdf.addActionListener(this);

    }

    public static void main(String... string) {
        for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
            if ("Nimbus".equals(info.getName())) {
                try {
                    UIManager.setLookAndFeel(info.getClassName());
                    break;
                } catch (ClassNotFoundException | InstantiationException
                        | IllegalAccessException
                        | UnsupportedLookAndFeelException ex) {
                    Logger.getLogger(FormReportGenPDF.class.getName()).log(
                            Level.SEVERE, null, ex);
                }
            }
        }

        SwingUtilities.invokeLater(new Runnable() {

            @Override
            public void run() {
                new FormReportGenPDF().setVisible(true);
            }
        });

    }

    private void processPdfDetails() {
        String fna = fnameField.getText();
        String lna = lnameField.getText();
        String mail = emailField.getText();

        if (!"".equals(fna.trim()) && !"".equals(lna.trim())
                && !"".equals(mail.trim())) {
            Document pdfDoc = new Document();

            pdfDoc.setPageSize(PageSize.A5);
            pdfDoc.setMargins(40, 40, 40, 40);
            pdfDoc.setMarginMirroring(true);

            try {
                PdfWriter.getInstance(pdfDoc, new FileOutputStream(
                        "CustomerReport.pdf"));

                pdfDoc.open();

                com.itextpdf.text.Font font = new com.itextpdf.text.Font(
                        com.itextpdf.text.Font.FontFamily.TIMES_ROMAN, 24);

                com.itextpdf.text.Font font1 = new com.itextpdf.text.Font(
                        com.itextpdf.text.Font.FontFamily.TIMES_ROMAN, 15);

                pdfDoc.add(new Paragraph(fna + " " + lna + "'s Report", font));
                pdfDoc.add(Chunk.NEWLINE);
                pdfDoc.add(new FormParagraph("First Name : "
                        + new Chunk("\t\t" + fna, font1)));
                pdfDoc.add(new FormParagraph("Last Name  : "
                        + new Chunk("\t\t" + lna, font1)));
                pdfDoc.add(new FormParagraph("E-Mail     : " + mail));

                pdfDoc.addAuthor("Animesh Shaw");
                pdfDoc.addCreationDate();
                pdfDoc.addTitle("Customer Report of " + fna + " " + lna);

                pdfDoc.close();

            } catch (DocumentException | FileNotFoundException e) {
                e.printStackTrace();
            }
        }
    }

    private final class FormParagraph extends Paragraph {

        private static final long serialVersionUID = 1L;

        public FormParagraph(String string) {
            super(string);
            initParams();
        }

        private void initParams() {
            setSpacingAfter(10);
            setIndentationLeft(50);
            setAlignment(Element.ALIGN_JUSTIFIED);
        }

    }

    @Override
    public void actionPerformed(ActionEvent evt) {
        if (evt.getSource() == genPdf) {
            processPdfDetails();
        } else {
            JOptionPane.showMessageDialog(null, "Required Fields are empty. "
                    + "Please Fill them!", "Empty Fields",
                    JOptionPane.ERROR_MESSAGE);
        }
    }

}