images/image_rounded_corners

 * Image with rounded corners:

 * Place an image with rounded corners

 *

 * Get the dimensions of an image and create a clipping path as a rectangle of

 * 0.5 of the width and height of the image and with rounded corners. Fit the

 * image into a box with the position and size of the clipping path.

 *

 * 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 image_rounded_corners

{

    public static void main (String argv[])

    {

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

    String searchpath = "../input";

    String outfile = "image_rounded_corners.pdf";

    String title = "Image with Rounded Corners";

    pdflib p = null;

    String imagefile = "nesrin.jpg";

    int image;

    double width, height;   // width and height of the image

    int radius=50;          // radius of the circle describing a rounded corner

    int x=20, y=20;         // lower left position of the 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: 1.4 $");

        /* Load image */

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

        if (image == -1)

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

        /* Get the width and height of the image */

        width = p.get_value("imagewidth", 0.0);

        height = p.get_value("imageheight", 0.0);

        /* Start a page with the image dimensions */

        p.begin_page_ext(width, height, "");

        /* Save the current graphics state including the clipping path */

        p.save();

        /* Define a path as a rectangle of 0.5 of the original width and height

         * of the image and with rounded corners

         */

        width *= 0.5;

        height *= 0.5;

        p.moveto(x + radius, y);

        p.lineto(x + width - radius, y);

        p.arc(x + width - radius, y + radius, radius, 270, 360);

        p.lineto(x + width, y + height - radius );

        p.arc(x + width - radius, y + height - radius, radius, 0, 90);

        p.lineto(x + radius, y + height);

        p.arc(x + radius, y + height - radius, radius, 90, 180);

        p.lineto(x , y + radius);

        p.arc(x + radius, y + radius, radius, 180, 270);

        /* Set clipping path to defined path */

        p.clip();

        /* Load image */

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

        /* Fit the image into a box with the size and start point (x,y) of the

         * clipping path. The image is placed in the center of the box using a

         * fit method of "meet" which will scale the image proportionally until

         * it completely covers the box */

        p.fit_image(image, x, y, "boxsize {" + width + " " + height +

            "} position center fitmethod=meet");

        /* Close image and restore original clipping (no clipping) */

        p.close_image(image);

        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();

            }

        }

    }

}