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text_output/shadowed_text

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/* $Id: shadowed_text.java,v 1.4 2013/01/15 10:12:08 stm Exp $

 * Shadowed text:

 * Create a shadowed text line

 *

 * To create a shadowed text line use the "shadow" option of fit_textline() and

 * the suboptions "offset" for setting the position, "fillcolor" for defining

 * the color, and "gstate" for applying advanced graphics settings for the

 * shadow.

 *

 * Required software: PDFlib/PDFlib+PDI/PPS 9

 * Required data: image file

 */

package com.pdflib.cookbook.pdflib.text_output;


import com.pdflib.pdflib;

import com.pdflib.PDFlibException;


public class shadowed_text {

    public static void main(String argv[]) {

        /* This is where the data files are. Adjust as necessary. */

        String searchpath = "../input";

        String outfile = "shadowed_text.pdf";

        String title = "Shadowed Text";


        pdflib p = null;


        final String imagefile = "cambodia_bayon3.jpg";

        final String text = "the faces of Bayon";


        final int x1 = 20, x2 = 360, yoff = 60;

        int y = 550;


        String shadow_opts, smallfont_opts, bigfont_opts, color_opts;

        int image, gstate;

        int normalfont, boldfont;

        int bigfontsize = 35, smallfontsize = 15;


        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");


            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 $");


            normalfont = p.load_font("Helvetica", "unicode", "");

            if (normalfont == -1)

                throw new Exception("Error: " + p.get_errmsg());


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

            if (boldfont == -1)

                throw new Exception("Error: " + p.get_errmsg());


            /* Load image */

            image = p.load_image("auto", imagefile, "");

            if (image == -1)

                throw new Exception("Error: " + p.get_errmsg());


            /* Start page */

            p.begin_page_ext(842, 595, "");


            /* Define general options for small and big fonts */

            smallfont_opts = "font=" + normalfont + " fontsize="

                + smallfontsize + " ";

            bigfont_opts = "font=" + boldfont + " fontsize=" + bigfontsize

                + " ";


            /* Ouput a heading */

            p.fit_textline("Output of fit_textline()", x1, y, smallfont_opts);

            p.fit_textline("Options of fit_textline()", x2, y, smallfont_opts);


            /*

             * ------------------------------------------------------ Output

             * shadowed text with default shadow option values

             * ------------------------------------------------------

             */

            shadow_opts = "shadow={} ";

            p.fit_textline(text, x1, y -= yoff, bigfont_opts + shadow_opts);


            /* Output a description of the shadow options */

            p.fit_textline(shadow_opts, x2, y + bigfontsize / 4,

                    smallfont_opts);


            /*

             * -------------------------------------------------------------

             * Output shadowed text with varied offset (Default is {5% -5%})

             * -------------------------------------------------------------

             */

            shadow_opts = "shadow={offset={10% 8%}} ";

            p.fit_textline(text, x1, y -= yoff, bigfont_opts + shadow_opts);


            /* Output a description of the shadow options */

            p.fit_textline(shadow_opts, x2, y + bigfontsize / 4,

                    smallfont_opts);


            /* Output shadowed text with default shadow option values */

            shadow_opts = "shadow={offset={-10% 8%}} ";

            p.fit_textline(text, x1, y -= yoff, bigfont_opts + shadow_opts);


            /* Output a description of the shadow options */

            p.fit_textline(shadow_opts, x2, y + bigfontsize / 4,

                    smallfont_opts);


            /* Output shadowed text with default shadow option values */

            shadow_opts = "shadow={offset={-10% -8%}} ";

            p.fit_textline(text, x1, y -= yoff, bigfont_opts + shadow_opts);


            /* Output a description of the shadow options */

            p.fit_textline(shadow_opts, x2, y + bigfontsize / 4,

                    smallfont_opts);


            /*

             * ------------------------------------------- Output shadowed text

             * with varied fill color

             * -------------------------------------------

             */

            shadow_opts = "shadow={fillcolor={rgb 0.28 0.81 0.8} offset={10% -10%}} ";


            color_opts = "fillcolor={rgb 0 0.5 0.52}";

            p.fit_textline(text, x1, y -= yoff, bigfont_opts + shadow_opts

                + color_opts);


            /* Output the shadow options */

            p.fit_textline(shadow_opts, x2, y + bigfontsize / 4,

                    smallfont_opts);


            /*

             * Save the current graphics state. The save/restore of the current

             * state is not necessarily required, but it will help you get back

             * to a graphics state without any transparency.

             */

            p.save();


            /* Output a background image */

            p.fit_image(image, x1, 50, "boxsize={170 170} fitmethod=meet");


            /*

             * Create an extended graphics state with transparency set to 50%,

             * using create_gstate() with the "opacityfill" option set to 0.5.

             */

            gstate = p.create_gstate("opacityfill=.5");


            /*

             * Display some white shadowed text which will be transparent

             * according to the graphics state supplied

             */

            shadow_opts = "shadow={fillcolor={rgb 0.87 0.72 0.52} "

                + "offset={8% -8%}} gstate=" + gstate;


            color_opts = " fillcolor={rgb 1 1 1}";


            p.fit_textline("the", x1, 185, bigfont_opts + shadow_opts

                + color_opts);

            p.fit_textline("faces", x1, 145, bigfont_opts + shadow_opts

                + color_opts);

            p.fit_textline("of", x1, 105, bigfont_opts + shadow_opts

                + color_opts);

            p.fit_textline("Bayon", x1, 65, bigfont_opts + shadow_opts

                + color_opts);


            /* Restore the current graphics state */

            p.restore();


            /* Output the shadow options */

            p.fit_textline(shadow_opts, x2, 145, smallfont_opts);

            p.fit_textline("(gstate is created with \"opacityfill=.5\")", x2,

                115, smallfont_opts);


            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.toString());

        }

        finally {

            if (p != null) {

                p.delete();

            }

        }

    }

}