images/align_text_at_image

 * Align text at image:

 * Align text at an image

 *

 * Align text orientated to the west at the lower right corner of an image by

 * retrieving the coordinates of the image matchbox.

 * Align text orientated to the west at the lower right corner of an image

 * orientated to the west.

 *

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

 * Required data: image file

 */

package com.pdflib.cookbook.pdflib.images;

import com.pdflib.pdflib;

import com.pdflib.PDFlibException;

public class align_text_at_image

{

    public static void main (String argv[])

    {

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

    String searchpath = "../input";

    String outfile = "align_text_at_image.pdf";

    String title = "Align Text at Image";

    pdflib p = null;

    String imagefile = "kraxi_logo.tif";

    String optlist;

    int font, image;

    double x1 = 0, x2 = 0, y1 = 0, y2 = 0;

    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: 1.1 $");

        /* Start page */

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

        /* For PDFlib Lite: change "unicode" to "winansi" */

        font = p.load_font("Helvetica", "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());

        /* -----------------------------------------------------------------

         * Align text orientated to the west at the lower right corner of an

         * image

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

         */

        /* Place the image in the center of a box using the "boxsize" and

         * "position" options. Maintain its proportions using "fitmethod=meet".

         * Use the "matchbox" option with the "borderwidth" suboption to draw a

         * small rectangle around the image with the "strokecolor" suboption

         * determining the border color.

         */

        /* Fit the image */

        optlist = "boxsize={300 200} position={center} " +

            "fitmethod=meet matchbox={name=giantwing borderwidth=3 " +

            "strokecolor={rgb 0.85 0.83 0.85}}";

        p.fit_image(image, 100, 500, optlist);

        /* Retrieve the coordinates of the second (lower right) matchbox corner.

         * The parameter "1" indicates the first instance of the "giantwing"

         * matchbox.

         */

        if ((int) p.info_matchbox("giantwing", 1, "exists") == 1) {

                x2 = p.info_matchbox("giantwing", 1, "x2");

            y2 = p.info_matchbox("giantwing", 1, "y2");

        }

        /* Start the text line orientated to the west at the corner coordinates

         * retrieved (x2, y2) with a small offset of 3 or 2, respectively.

         */

        optlist = "font=" + font + " fontsize=12 orientate=west";

        p.fit_textline("Foto: Kraxi", x2+3, y2+2, optlist);

        /* -----------------------------------------------------------------

         * Align text orientated to the west at the lower right corner of an

         * image orientated to the west as well.

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

         */

        /* Place the image in the center of a box using the "boxsize" and

         * "position" options. Maintain its proportions using "fitmethod=meet".

         * Using the "orientate" option orientate the image to the west. Use the

         * "matchbox" option with the "borderwidth" suboption to draw a small

         * rectangle around the image with the "strokecolor" suboption

         * determining the border color.

         */

        optlist = "boxsize={200 300} position={center} fitmethod=meet " +

            "orientate=west matchbox={name=giantwing borderwidth=3 " +

            "strokecolor={rgb 0.85 0.83 0.85}}";

        p.fit_image(image, 100, 100, optlist);

        /* Retrieve the coordinates of the first matchbox corner; usually this

         * will be the lower left corner but with being orientated to the west

         * it will be moved to the bottom right. The parameter "2" indicates the

         * second instance of the "giantwing" matchbox.

         */

        if ((int) p.info_matchbox("giantwing", 2, "exists") == 1) {

                x1 = p.info_matchbox("giantwing", 2, "x1");

            y1 = p.info_matchbox("giantwing", 2, "y1");

        }

        /* Start the text line orientated to the west at the corner coordinates

         * retrieved (x1, y1) with a small offset of 3 or 2, respectively.

         */

        optlist = "font=" + font + " fontsize=12 orientate=west";

        p.fit_textline("Foto: Kraxi", x1+3, y1+2, optlist);

        p.close_image(image);

        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();

            }

        }

    }

}