/*

 * Copyright 2004-2008 Sun Microsystems, Inc.  All Rights Reserved.

 * 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.

 */

import java.io.*;

import java.awt.*;

public class DeleteFont {

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

        String font = "A.ttf";

        String sep = System.getProperty("file.separator");

        String testSrc = System.getenv("TESTSRC");

        if (testSrc != null) {

            font = testSrc + sep + font;

        }

        System.out.println("Using font file: " + font);

        FileInputStream fis = new FileInputStream(font);

        Font f = Font.createFont(Font.TRUETYPE_FONT, fis);

        f.toString();

        f.deriveFont(Font.BOLD);

        f.canDisplay('X');

       InputStream in = new InputStream() {

            public int read() {

                throw new RuntimeException();

            }

        };

        boolean gotException = false;

        try {

           Font.createFont(java.awt.Font.TRUETYPE_FONT, in);

        } catch (IOException e) {

            gotException = true;

        }

        if (!gotException) {

            throw new RuntimeException("No expected IOException");

        }

        badRead(-2, Font.TRUETYPE_FONT);

        badRead(8193, Font.TRUETYPE_FONT);

        badRead(-2, Font.TYPE1_FONT);

        badRead(8193, Font.TYPE1_FONT);

        // Make sure GC has a chance to clean up before we exit.

        System.gc(); System.gc();

    }

    static void badRead(final int retval, int fontType) {

        int num = 2;

        byte[] buff = new byte[16*8192]; // Multiple of 8192 is important.

        for (int ct=0; ct<num; ++ct) {

            try {

                Font.createFont(

                    fontType,

                    new ByteArrayInputStream(buff) {

                        @Override

                        public int read(byte[] buff, int off, int len) {

                            int read = super.read(buff, off, len);

                            return read<0 ? retval : read;

                        }

                    }

                );

            } catch (Throwable exc) {

                //exc.printStackTrace();

            }

        }

    }

}