PDFlib Cookbook

cookbook

text_output/rotated_text

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/* $Id: rotated_text.java,v 1.16 2013/01/15 10:12:08 stm Exp $
 * Rotated text:
 * Create rotated text lines and Textflows which do not run horizontally,
 * but at some angle
 *
 * Three text lines are generated which are oriented to the west, east, or
 * south. A text line is rotated by 30 degrees. A Textflow is created which
 * is rotated by 30 degrees. A Textflow is generated with a rotation of 30
 * degrees and an orientation to the west.
 *
 * 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 rotated_text
{
    public static void main (String argv[])
    {
    /* This is where the data files are. Adjust as necessary. */
    String searchpath = "../input";
    String outfile = "rotated_text.pdf";
    String title = "Rotated Text";

    pdflib p = null;
    int font;
    String result;
    int tf = -1;
    String optlist =
        "fontname=Helvetica fontsize=14 encoding=unicode leading=120% charref";

    String textflow =
        "To fold the famous rocket looper proceed as follows:\n" +
        "Take a DIN A4 sheet. Fold it lenghtwise in the middle. Then, fold " +
        "the upper corners down. Fold the long sides inwards that the points " +
        "A and B meet on the central fold. Fold the points C and D that the " +
        "upper corners meet with the central fold as well. Fold the plane in " +
        "the middle. Fold the wings down that they close with the lower " +
        "border of the plane.";

    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: 1.16 $");

        /* Page 1 */
        p.begin_page_ext(595, 842, "");

        font = p.load_font("Helvetica-Bold", "unicode", "");

        if (font == -1)
        throw new Exception("Error: " + p.get_errmsg());

        /* Place a text line with an orientation of west, east, or south */
        p.setfont(font, 24);
        p.fit_textline("The famous rocket looper", 100, 500, "orientate=west");

        p.setfont(font, 20);
        p.fit_textline("The famous rocket looper", 200, 500, "orientate=east");

        p.setfont(font, 16);
        p.fit_textline("The famous rocket looper", 300, 500, "orientate=south");

        /* Rotate a text line by 30 degrees */
        p.setfont(font, 16);
        p.fit_textline("The famous rocket looper", 50, 350, "rotate=30");

        /* Place a Textflow with a rotation of 30 degrees */
        tf = p.add_textflow(tf, textflow, optlist);
        if (tf == -1)
            throw new Exception("Error: " + p.get_errmsg());

        result = p.fit_textflow(tf, 250, 50, 400, 400, "rotate=30");
        if (!result.equals("_stop"))
        {
            /* Check for errors or more text to be placed */
        }
        p.delete_textflow(tf);

        p.end_page_ext("");

        /* Page 2 */
        p.begin_page_ext(595, 842, "");

        font = p.load_font("Helvetica-Bold", "unicode", "");

        if (font == -1)
        throw new Exception("Error: " + p.get_errmsg());

        /* Set the stroke color to red */
        p.setcolor("stroke", "rgb", 1, 0, 0, 0);

        /* Place a Textflow with a rotation of 30 degrees. Visualize the fitbox
         * of the Textflow with the "showborder" option */
        tf = -1;
        tf = p.add_textflow(tf, textflow, optlist);
        if (tf == -1)
            throw new Exception("Error: " + p.get_errmsg());

        result = p.fit_textflow(tf, 150, 450, 400, 650, "showborder rotate=30");
        if (!result.equals("_stop"))
        {
            /* Check for errors or more text to be placed */
        }
        p.delete_textflow(tf);

        p.fit_textline("rotate=30", 300, 500, "font=" + font + " fontsize=14");

        /* Now, place the Textflow with a rotation of 30 degrees and orientate
         * it to the west
         */
        tf = -1;
        tf = p.add_textflow(tf, textflow, optlist);
        if (tf == -1)
            throw new Exception("Error: " + p.get_errmsg());

        result = p.fit_textflow(tf, 150, 100, 400, 300,
            "showborder rotate=30 orientate west");
        if (!result.equals("_stop"))
        {
            /* Check for errors or more text to be placed */
        }
        p.delete_textflow(tf);

        p.fit_textline("rotate=30  orientate=west", 300, 150, "font=" + font +
            " fontsize=14");

        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();
            }
        }
    }
}