/*

 * Copyright (c) 1998, 2000, Oracle and/or its affiliates. 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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package java.awt.print;

/**

 * The <code>Pageable</code> implementation represents a set of

 * pages to be printed. The <code>Pageable</code> object returns

 * the total number of pages in the set as well as the

 * {@link PageFormat} and {@link Printable} for a specified page.

 * @see java.awt.print.PageFormat

 * @see java.awt.print.Printable

 */

public interface Pageable {

    /**

     * This constant is returned from the

     * {@link #getNumberOfPages() getNumberOfPages}

     * method if a <code>Pageable</code> implementation does not know

     * the number of pages in its set.

     */

    int UNKNOWN_NUMBER_OF_PAGES = -1;

    /**

     * Returns the number of pages in the set.

     * To enable advanced printing features,

     * it is recommended that <code>Pageable</code>

     * implementations return the true number of pages

     * rather than the

     * UNKNOWN_NUMBER_OF_PAGES constant.

     * @return the number of pages in this <code>Pageable</code>.

     */

    int getNumberOfPages();

    /**

     * Returns the <code>PageFormat</code> of the page specified by

     * <code>pageIndex</code>.

     * @param pageIndex the zero based index of the page whose

     *            <code>PageFormat</code> is being requested

     * @return the <code>PageFormat</code> describing the size and

     *          orientation.

     * @throws IndexOutOfBoundsException if

     *          the <code>Pageable</code> does not contain the requested

     *          page.

     */

    PageFormat getPageFormat(int pageIndex)

        throws IndexOutOfBoundsException;

    /**

     * Returns the <code>Printable</code> instance responsible for

     * rendering the page specified by <code>pageIndex</code>.

     * @param pageIndex the zero based index of the page whose

     *            <code>Printable</code> is being requested

     * @return the <code>Printable</code> that renders the page.

     * @throws IndexOutOfBoundsException if

     *            the <code>Pageable</code> does not contain the requested

     *            page.

     */

    Printable getPrintable(int pageIndex)

        throws IndexOutOfBoundsException;

}