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- /*
- * $Id$
- * ============================================================================
- * The Apache Software License, Version 1.1
- * ============================================================================
- *
- * Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * 3. The end-user documentation included with the redistribution, if any, must
- * include the following acknowledgment: "This product includes software
- * developed by the Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself, if
- * and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "FOP" and "Apache Software Foundation" must not be used to
- * endorse or promote products derived from this software without prior
- * written permission. For written permission, please contact
- * apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache", nor may
- * "Apache" appear in their name, without prior written permission of the
- * Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
- * DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- * ============================================================================
- *
- * This software consists of voluntary contributions made by many individuals
- * on behalf of the Apache Software Foundation and was originally created by
- * James Tauber <jtauber@jtauber.com>. For more information on the Apache
- * Software Foundation, please see <http://www.apache.org/>.
- */
- package org.apache.fop.fo.pagination;
-
- // FOP
- import org.apache.fop.fo.FObj;
- import org.apache.fop.fo.PropertyList;
- import org.apache.fop.apps.FOPException;
-
- // Java
- import java.util.ArrayList;
-
- /**
- * Class modeling the fo:page-sequence-master object.
- *
- * @see <a href="@XSLFO-STD@#fo_page-sequence-master"
- target="_xslfostd">@XSLFO-STDID@
- * ¶6.4.7</a>
- */
- public class PageSequenceMaster extends FObj {
-
- public static class Maker extends FObj.Maker {
- public FObj make(FObj parent, PropertyList propertyList,
- String systemId, int line, int column)
- throws FOPException {
- return new PageSequenceMaster(parent, propertyList,
- systemId, line, column);
- }
-
- }
-
- public static FObj.Maker maker() {
- return new PageSequenceMaster.Maker();
- }
-
- private LayoutMasterSet layoutMasterSet;
- private ArrayList subSequenceSpecifiers;
- private SubSequenceSpecifier currentSubSequence;
- private int currentSubSequenceNumber;
- private String masterName;
-
- // The terminology may be confusing. A 'page-sequence-master' consists
- // of a sequence of what the XSL spec refers to as
- // 'sub-sequence-specifiers'. These are, in fact, simple or complex
- // references to page-masters. So the methods use the former
- // terminology ('sub-sequence-specifiers', or SSS),
- // but the actual FO's are MasterReferences.
- protected PageSequenceMaster(FObj parent, PropertyList propertyList,
- String systemId, int line, int column)
- throws FOPException {
- super(parent, propertyList, systemId, line, column);
-
- if (parent.getName().equals("fo:layout-master-set")) {
- this.layoutMasterSet = (LayoutMasterSet)parent;
- this.masterName = this.properties.get("master-name").getString();
- if (this.masterName == null) {
- log.warn("page-sequence-master does not have "
- + "a page-master-name and so is being ignored");
- } else {
- this.layoutMasterSet.addPageSequenceMaster(masterName, this);
- }
- } else {
- throw new FOPException("fo:page-sequence-master must be child "
- + "of fo:layout-master-set, not "
- + parent.getName(), systemId, line, column);
- }
- subSequenceSpecifiers = new ArrayList();
- currentSubSequenceNumber = -1;
- currentSubSequence = null;
- }
-
- protected void addSubsequenceSpecifier(SubSequenceSpecifier pageMasterReference) {
- subSequenceSpecifiers.add(pageMasterReference);
- }
-
- protected SubSequenceSpecifier getNextSubSequence() {
- currentSubSequenceNumber++;
- if (currentSubSequenceNumber >= 0
- && currentSubSequenceNumber < subSequenceSpecifiers.size()) {
- return (SubSequenceSpecifier)subSequenceSpecifiers
- .get(currentSubSequenceNumber);
- }
- return null;
- }
-
- public void reset() {
- currentSubSequenceNumber = -1;
- currentSubSequence = null;
- for (int i = 0; i< subSequenceSpecifiers.size(); i++ ) {
- ((SubSequenceSpecifier)subSequenceSpecifiers.get(i)).reset();
- }
- }
-
- public SimplePageMaster getNextSimplePageMaster(boolean oddPage,
- boolean blankPage)
- throws FOPException {
- boolean firstPage = false;
- if (currentSubSequence==null) {
- currentSubSequence = getNextSubSequence();
- if (currentSubSequence==null) {
- throw new FOPException("no subsequences in page-sequence-master '"
- + masterName + "'", systemId, line, column);
- }
- firstPage = true;
- }
- String pageMasterName = currentSubSequence
- .getNextPageMasterName(oddPage, firstPage, blankPage);
- boolean canRecover = true;
- while (pageMasterName==null) {
- SubSequenceSpecifier nextSubSequence = getNextSubSequence();
- firstPage = true;
- if (nextSubSequence==null) {
- if (!canRecover) {
- throw new FOPException("subsequences exhausted in page-sequence-master '"
- + masterName
- + "', cannot recover", systemId, line, column);
- }
- log.warn("subsequences exhausted in page-sequence-master '"
- + masterName
- + "', use previous subsequence");
- currentSubSequence.reset();
- canRecover = false;
- } else {
- currentSubSequence = nextSubSequence;
- }
- pageMasterName = currentSubSequence
- .getNextPageMasterName(oddPage, firstPage, blankPage);
- }
- SimplePageMaster pageMaster=this.layoutMasterSet
- .getSimplePageMaster(pageMasterName);
- if (pageMaster==null) {
- throw new FOPException("No simple-page-master matching '"
- + pageMasterName + "' in page-sequence-master '"
- + masterName +"'", systemId, line, column);
- }
- return pageMaster;
- }
-
- public String getName() {
- return "fo:page-sequence-master";
- }
-
- }
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