Showing the changes to java/pkg/sun/swing/text/CompoundPrintable.java (1 of 18352 files). Show all
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| 1 | /* | ||
| 2 | * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | package sun.swing.text; | ||
| 26 | |||
| 27 | import java.util.*; | ||
| 28 | import java.awt.Graphics; | ||
| 29 | import java.awt.print.*; | ||
| 30 | |||
| 31 | |||
| 32 | /** | ||
| 33 | * Printable to merge multiple printables into one. | ||
| 34 | * | ||
| 35 | * @author Igor Kushnirskiy | ||
| 36 | * | ||
| 37 | * @since 1.6 | ||
| 38 | */ | ||
| 39 | class CompoundPrintable implements CountingPrintable { | ||
| 40 | private final Queue<CountingPrintable> printables; | ||
| 41 | private int offset = 0; | ||
| 42 | |||
| 43 | public CompoundPrintable(List<CountingPrintable> printables) { | ||
| 44 | this.printables = new LinkedList<CountingPrintable>(printables); | ||
| 45 | } | ||
| 46 | |||
| 47 | public int print(final Graphics graphics, | ||
| 48 | final PageFormat pf, | ||
| 49 | final int pageIndex) throws PrinterException { | ||
| 50 | int ret = NO_SUCH_PAGE; | ||
| 51 | while (printables.peek() != null) { | ||
| 52 | ret = printables.peek().print(graphics, pf, pageIndex - offset); | ||
| 53 | if (ret == PAGE_EXISTS) { | ||
| 54 | break; | ||
| 55 | } else { | ||
| 56 | offset += printables.poll().getNumberOfPages(); | ||
| 57 | } | ||
| 58 | } | ||
| 59 | return ret; | ||
| 60 | } | ||
| 61 | |||
| 62 | /** | ||
| 63 | * Returns the number of pages in this printable. | ||
| 64 | * <p> | ||
| 65 | * This number is defined only after {@code print} returns NO_SUCH_PAGE. | ||
| 66 | * | ||
| 67 | * @return the number of pages. | ||
| 68 | */ | ||
| 69 | public int getNumberOfPages() { | ||
| 70 | return offset; | ||
| 71 | } | ||
| 72 | |||
| 73 | } | ||