text_output/text_as_clipping_path

 * Text as clipping path:

 * Output text filled with an image

 * 

 * Use various text rendering modes to place an image clipped by some text

 * outlines.

 * Use the "textrendering=7" parameter to add text to the clipping path. Then

 * place an image clipped by that path.

 * Use "textrendering=5" to stroke text and add it to the clipping path. Then

 * place an image clipped by that path.

 *

 * Required software: PDFlib Lite/PDFlib/PDFlib+PDI/PPS 7

 * Required data: image file

 */

package com.pdflib.cookbook.pdflib.text_output;

import com.pdflib.pdflib;

import com.pdflib.PDFlibException;

public class text_as_clipping_path

{

    public static void main (String argv[])

    {

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

    String searchpath = "../input";

    String outfile = "text_as_clipping_path.pdf";

    String title = "Text as Clipping Path";

    pdflib p = null;

    String imagefile = "nesrin.jpg";

    int font, image;

    try {

        p = new pdflib();

        p.set_parameter("SearchPath", searchpath);

        /* This means we must check return values of load_font() etc. */

        p.set_parameter("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: 1.2 $");

        /* Load the font; for PDFlib Lite: change "unicode" to "winansi" */

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

        if (font == -1)

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

        /* Load the image */

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

        if (image == -1)

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

        /* Start an A4 landscape page */

        p.begin_page_ext(0, 0, "width=a4.height height=a4.width");

        /* Save the current graphics state */

        p.save();

        /* Set the text rendering mode to "add text to the clipping path" */

        p.set_value("textrendering", 7);

        /* Output some text. The text outlines will not actually be output but

         * be added to the clipping path instead. Note that with a text

         * rendering mode of 7, just the simple text output functions can be

         * used.

         */

        p.setfont(font, 250);

        p.set_text_pos(30, 250);

        p.show("Hello!");

        /* Place the image */

        p.fit_image(image, 0.0, 0.0, "boxsize={842 595} fitmethod=entire");

        /* Restore the current graphics state */

        p.restore();

        /* Save the current graphics state */

        p.save();

        /* Set the text rendering mode to "stroke text and add it to the

         * clipping path"

         */

        p.set_value("textrendering", 5);

        /* Output some text. The text outlines will not actually be output but

         * be added to the clipping path instead. Note that with a text

         * rendering mode of 5, just the simple text output functions can be

         * used.

         */

        p.setfont(font, 200);

        p.setcolor("stroke", "rgb", 0.1, 0.1, 0.1, 0);

        p.setlinewidth(8);

        p.set_text_pos(100, 50);

        p.show("Hello!");

        /* Place the image */

        p.fit_image(image, 0.0, 0.0, "boxsize={842 595} fitmethod=entire");

        p.close_image(image);

        /* Restore the current graphics state */

        p.restore();

        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();

            }

        }

    }

}