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color/svg_color_extension

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/* $Id: svg_color_extension.java,v 1.2 2017/01/26 10:50:40 stm Exp $

 * Demonstrate SVG color extensions

 * Load SVG graphics with use of extended color and fit into a box

 *

 * Required software: PDFlib/PDFlib+PDI/PPS 9.1

 * Required data: SVG graphics

 */

package com.pdflib.cookbook.pdflib.color;


import com.pdflib.pdflib;

import com.pdflib.PDFlibException;


public class svg_color_extension {

       

    public static void main(String argv[]) {

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

        String searchpath = "../input";

        String outfile = "svg_color_extension.pdf";


        pdflib p = null;

        String graphicsfile = "svg_color_extension.svg";

        int graphics;

        int x = 50, y = 200;

        int boxwidth = 500, boxheight = 600;

        String optlist;

        int devicen;

        int exitcode = 0;


        try {

            p = new pdflib();


            p.set_option("SearchPath=" + searchpath);


            /* This means we must check return values of load_graphics() 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", "svg_color_extension $Revision: 1.2 $");


            /*

             * Define DeviceN color based on two process colors

             */

            devicen = p.create_devicen(

                    "names={Magenta Yellow} alternate=devicecmyk transform={{0 0 4 1 roll}}");


            /* Load the graphics. The option "devicencolors" contains the

             * prepared DeviceN color space handle.

             */

            graphics = p.load_graphics("auto", graphicsfile,

                    "devicencolors={" + devicen + "}");


            if (graphics == -1)

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


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


            /* Fit SVG graphics into the specified box */

            optlist = "boxsize={ " + boxwidth + " " + boxheight

                + "} position={center} fitmethod=meet ";


            /*

             * Before actually fitting the graphics we check whether fitting is

             * possible.

             */

            if (p.info_graphics(graphics, "fittingpossible", optlist) == 1) {

                p.fit_graphics(graphics, x, y, optlist);

            }

            else {

                throw new Exception("Cannot place graphics: " + p.get_errmsg());

            }


            p.end_page_ext("");


            p.close_graphics(graphics);


            p.end_document("");

        }

        catch (PDFlibException e) {

            System.err.println("PDFlib exception occurred:");

            System.err.println("[" + e.get_errnum() + "] " + e.get_apiname()

                + ": " + e.get_errmsg());

            exitcode = 1;

        }

        catch (Exception e) {

            System.err.println(e.getMessage());

            exitcode = 1;

        }

        finally {

            if (p != null) {

                p.delete();

            }

            System.exit(exitcode);

        }

    }

}