/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

/* @test

 * @summary verify thread interruption doesn't affect font file reading.

 * @bug 6640532

 */

import java.awt.*;

public class FontThread extends Thread {

    String fontName = "Dialog";

    static FontThread thread1;

    static FontThread thread2;

    static FontThread thread3;

    public static void main(String args[]) throws Exception {

        thread1 = new FontThread("SansSerif");

        thread2 = new FontThread("Serif");

        thread3 = new FontThread("Monospaced");

        thread1.dometrics(60); // load classes first

        thread1.start();

        thread2.start();

        thread3.start();

        InterruptThread ithread = new InterruptThread();

        ithread.setDaemon(true);

        ithread.start();

        thread1.join();

        thread2.join();

        thread3.join();

    }

    FontThread(String font) {

        super();

        this.fontName = font;

    }

    public void run() {

        System.out.println("started "+fontName); System.out.flush();

        dometrics(4000);

        System.out.println("done "+fontName); System.out.flush();

    }

    private void dometrics(int max) {

        Font f = new Font(fontName, Font.PLAIN, 12);

        FontMetrics fm = Toolkit.getDefaultToolkit().getFontMetrics(f);

        for (char i=0;i<max;i++) {

            if (f.canDisplay(i)) fm.charWidth(i);

        }

    }

    static class InterruptThread extends Thread {

        public void run() {

            while (true) {

                try {

                    Thread.sleep(1);

                } catch (InterruptedException e) {

                }

                thread1.interrupt();

                thread2.interrupt();

                thread3.interrupt();

            }

        }

    }

}