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text_output/leaders_in_textline

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/* $Id: leaders_in_textline.java,v 1.4 2013/01/15 10:12:08 stm Exp $
 * Leaders in text line:
 * Use dot leaders to fill the space between text and a page number such as in
 * a table of contents
 * 
 * Create a table of contents by placing text in a box with the space to the
 * right end of the box being filled with dot leaders. Place text representing a
 * page number after that text box.
 * Create another table of contents but with the page numbers right-aligned. 
 *  
 * Required software: PDFlib/PDFlib+PDI/PPS 9
 * Required data: none
 */
package com.pdflib.cookbook.pdflib.text_output;

import com.pdflib.pdflib;
import com.pdflib.PDFlibException;

public class leaders_in_textline
{
    public static void main (String argv[])
    {
    /* This is where the data files are. Adjust as necessary. */
    String searchpath = "../input";
    String outfile = "leaders_in_textline.pdf";
    String title = "Leaders in Text Line";

    pdflib p = null;
    int i, x = 20, bw = 400, y = 700, yoff = 20;
    String textopts, numopts, headopts;
    
    headopts = "fontname=Helvetica-Bold fontsize=14 encoding=unicode " +
        "fillcolor={cmyk 1 0.5 0.2 0}";
      
    final String items [][] = {
    	{ "Long Distance Glider", "3" },
    	{ "Giant Wing", "7" },
        { "Cone Head Rocket", "12" },
        { "Super Dart", "18" }
    };
    	
    try {
        p = new pdflib();

        p.set_option("searchpath={" + searchpath + "}");

        /* This means we must check return values of load_font() etc. */
        p.set_option("errorpolicy=return");

        /* Set an output path according to the name of the topic */
        if (p.begin_document(outfile, "") == -1)
            throw new Exception("Error: " + p.get_errmsg());

        p.set_info("Creator", "PDFlib Cookbook");
        p.set_info("Title", title + " $Revision: 1.4 $");

        /* Start Page */
        p.begin_page_ext(0, 0, "width=a4.width height=a4.height");
        
        
        /* -----------------
         * Table of contents
         * -----------------
         */
        
        /* Output a heading */
        p.fit_textline("Table of contents", x, y, headopts);
        
        /* Option list for the text entry. The text is placed in a box with a
         * width of 400 using boxsize={400 30}. The "leader" option is used to
         * define leaders to be used. The "alignment" suboption specifies the
         * alignment between text, leaders, and box. The default leader
         * character is ".". Use the "text" suboption to define one or more
         * other characters to be used as leaders.
         */ 
        textopts = "fontname=Helvetica fontsize=14 encoding=unicode " +
            "boxsize={" + bw + " 30} leader={alignment=right}";
        
        /* Option list for the page number */
        numopts = "fontname=Helvetica-Bold fontsize=14 encoding=unicode " +
            "fillcolor={cmyk 1 0.5 0.2 0}";
        
        for (i = 0; i < 4; i++) {
            /* Place the text line */
            p.fit_textline(items[i][0], x, y-=yoff, textopts);
            
            /* To the right of the text box place the page number with a 
             * distance of 10
             */
            p.fit_textline(items[i][1], x+bw+10, y, numopts);
        }
        
        
        /* ------------------------------------------------
         * Table of contents with the numbers right-aligned
         * ------------------------------------------------
         */
        
        /* Output a heading */
        p.fit_textline("Table of contents with the numbers right-aligned",
            x, y-=2*yoff, headopts);
        
        /* In this case, the number is placed right-aligned with
         * "position={right bottom}" in a box with a width of 20 using
         * "boxsize={20 30}".
         */ 
        numopts = "fontname=Helvetica-Bold fontsize=14 encoding=unicode " +
            "boxsize={20 30} position={right bottom} " +
            "fillcolor={cmyk 1 0.5 0.2 0}";
        
        for (i = 0; i < 4; i++) {
            /* Place the text line */
            p.fit_textline(items[i][0], x, y-=yoff, textopts);
            
            /* To the right of the text box place the page number right-aligned
             * into a box with a width of 20 
             */
            p.fit_textline(items[i][1], x+bw, y, numopts);
        }

        p.end_page_ext("");

        p.end_document("");

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