/* * Copyright (c) 2005, 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 * or visit www.oracle.com if you need additional information or have any * questions. */package sun.swing.text; import java.util.*;import java.awt.Graphics;import java.awt.print.*;  /** * Printable to merge multiple printables into one. * * @author Igor Kushnirskiy * * @since 1.6 */class CompoundPrintable implements CountingPrintable {    private final Queue<CountingPrintable> printables;    private int offset = 0;     public CompoundPrintable(List<CountingPrintable> printables) {        this.printables = new LinkedList<CountingPrintable>(printables);    }     public int print(final Graphics graphics,                     final PageFormat pf,                     final int pageIndex) throws PrinterException {        int ret = NO_SUCH_PAGE;        while (printables.peek() != null) {            ret = printables.peek().print(graphics, pf, pageIndex - offset);            if (ret == PAGE_EXISTS) {                break;            } else {                offset += printables.poll().getNumberOfPages();            }        }        return ret;    }     /**     * Returns the number of pages in this printable.     * <p>     * This number is defined only after {@code print} returns NO_SUCH_PAGE.     *     * @return the number of pages.     */    public int getNumberOfPages() {        return offset;    } }