/* $Id: invoice.java,v 1.5.2.1 2003/09/02 15:53:59 rp Exp $
 *
 * PDFlib client: invoice example in Java
 */

import java.io.*;
import java.text.*;             // DateFormat
import java.util.*;             // Date
import com.pdflib.pdflib;
import com.pdflib.PDFlibException;

public class invoice
{
    public static void main (String argv[])
    {
	pdflib p = null ;
	int         i, form, page, regularfont, boldfont;
	String      infile = "stationery.pdf";
	/* This is where font/image/PDF input files live. Adjust as necessary.*/
	String      searchpath = "../data";
	final float col1 = 55;
	final float col2 = 100;
	final float col3 = 330;
	final float col4 = 430;
	final float col5 = 530;
	float       fontsize = 12, leading, y;
	float       sum, total;
	float       pagewidth = 595, pageheight = 842;
	Date now = new Date();
	DateFormat fulldate = DateFormat.getDateInstance(DateFormat.LONG);

	String      closingtext =
	    "30 days warranty starting at the day of sale. " +
	    "This warranty covers defects in workmanship only. " +
	    "Kraxi Systems, Inc. will, at its option, repair or replace the " +
	    "product under the warranty. This warranty is not transferable. " +
	    "No returns or exchanges will be accepted for wet products.";

	String[][] data = {
	    { "Super Kite",         "20",     "2"},
	    { "Turbo Flyer",        "40",     "5"},
	    { "Giga Trash",         "180",    "1"},
	    { "Bare Bone Kit",      "50",     "3"},
	    { "Nitty Gritty",       "20",     "10"},
	    { "Pretty Dark Flyer",  "75",     "1"},
	    { "Free Gift",          "0",      "1"},
	};

	String[] months = {
	    "January", "February", "March", "April", "May", "June",
	    "July", "August", "September", "October", "November", "December"
	};

	try{
	    p = new pdflib();

	    // open new PDF file 
	    if (p.open_file("invoice.pdf") == -1) {
		throw new Exception("Error: " + p.get_errmsg());
	    }

	    p.set_parameter("SearchPath", searchpath);

	    p.set_info("Creator", "invoice.java");
	    p.set_info("Author", "Thomas Merz");
	    p.set_info("Title", "PDFlib invoice generation demo (Java)");

	    form = p.open_pdi(infile, "", 0);
	    if (form == -1) {
		throw new Exception("Error: " + p.get_errmsg());
	    }

	    page = p.open_pdi_page(form, 1, "");
	    if (page == -1) {
		throw new Exception("Error: " + p.get_errmsg());
	    }

	    boldfont = p.load_font("Helvetica-Bold", "winansi", "");
	    regularfont = p.load_font("Helvetica", "winansi", "");
	    leading = fontsize + 2;

	    // Establish coordinates with the origin in the upper left corner.
	    p.set_parameter("topdown", "true");

	    p.begin_page(pagewidth, pageheight);       // A4 page

	    p.fit_pdi_page(page, 0, pageheight, "");
	    p.close_pdi_page(page);

	    p.setfont(regularfont, fontsize);

	    // Print the address
	    y = 170;
	    p.set_value("leading", leading);

	    p.show_xy("John Q. Doe", col1, y);
	    p.continue_text("255 Customer Lane");
	    p.continue_text("Suite B");
	    p.continue_text("12345 User Town");
	    p.continue_text("Everland");

	    // Print the header and date

	    p.setfont(boldfont, fontsize);
	    y = 300;
	    p.show_xy("INVOICE", col1, y);

	    p.fit_textline(fulldate.format(now), col5, y, "position {100 0}");

	    // Print the invoice header line
	    p.setfont(boldfont, fontsize);

	    // "position {0 0}" is left-aligned, "position {100 0}" right-aligned
	    y = 370;
	    p.fit_textline("ITEM",             col1, y, "position {0 0}");
	    p.fit_textline("DESCRIPTION",      col2, y, "position {0 0}");
	    p.fit_textline("QUANTITY",         col3, y, "position {100 0}");
	    p.fit_textline("PRICE",            col4, y, "position {100 0}");
	    p.fit_textline("AMOUNT",           col5, y, "position {100 0}");

	    // Print the article list

	    p.setfont(regularfont, fontsize);
	    y += 2*leading;
	    total = 0;

	    for (i = 0; i < data.length; i++) {
		p.show_xy(Integer.toString(i+1), col1, y);
		p.show_xy(data[i][0], col2, y);
		p.fit_textline(data[i][2], col3, y, "position {100 0}");
		p.fit_textline(data[i][1], col4, y, "position {100 0}");
		sum = 0;

		sum = Integer.parseInt(data[i][2]) * Integer.parseInt(data[i][1]);
		p.fit_textline(Float.toString(sum), col5, y, "position {100 0}");

		y += leading;
		total += sum;
	    }

	    y += leading;
	    p.setfont(boldfont, fontsize);
	    p.fit_textline(Float.toString(total), col5, y, "position {100 0}");

	    // Print the closing text

	    y += 5*leading;
	    p.setfont(regularfont, fontsize);
	    p.set_value("leading", leading);
	    p.show_boxed(closingtext,
		col1, y + 4*leading, col5-col1, 4*leading, "justify", "");

	    p.end_page();
	    p.close();
	    p.close_pdi(form);

        } catch (PDFlibException e) {
	    System.err.print("PDFlib exception occurred in invoice sample:\n");
	    System.err.print("[" + e.get_errnum() + "] " + e.get_apiname() +
			    ": " + e.getMessage() + "\n");
        } catch (Exception e) {
            System.err.println(e.getMessage());
        } finally {
            if (p != null) {
		p.delete();			/* delete the PDFlib object */
            }
        }
    }
}