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- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
- /* $Id$ */
-
- package org.apache.fop.fo.pagination;
-
- // Java
- import java.util.HashMap;
- import java.util.Iterator;
- import java.util.Map;
-
- import org.xml.sax.Locator;
-
- import org.apache.fop.apps.FOPException;
- import org.apache.fop.datatypes.Length;
- import org.apache.fop.datatypes.Numeric;
- import org.apache.fop.datatypes.SimplePercentBaseContext;
- import org.apache.fop.datatypes.PercentBaseContext;
- import org.apache.fop.fo.FONode;
- import org.apache.fop.fo.FObj;
- import org.apache.fop.fo.PropertyList;
- import org.apache.fop.fo.ValidationException;
- import org.apache.fop.fo.properties.CommonMarginBlock;
-
- /**
- * Class modelling the <a href="http://www.w3.org/TR/xsl/#fo_simple-page-master">
- * <code>fo:simple-page-master</code></a> object.
- * This creates a simple page from the specified regions
- * and attributes.
- */
- public class SimplePageMaster extends FObj {
- // The value of properties relevant for fo:simple-page-master.
- private CommonMarginBlock commonMarginBlock;
- private String masterName;
- private Length pageHeight;
- private Length pageWidth;
- private Numeric referenceOrientation;
- private int writingMode;
- // End of property values
-
- /**
- * Page regions (regionClass, Region)
- */
- private Map<String, Region> regions;
-
- // used for node validation
- private boolean hasRegionBody = false;
- private boolean hasRegionBefore = false;
- private boolean hasRegionAfter = false;
- private boolean hasRegionStart = false;
- private boolean hasRegionEnd = false;
-
- /**
- * Base constructor
- *
- * @param parent {@link FONode} that is the parent of this object
- */
- public SimplePageMaster(FONode parent) {
- super(parent);
- }
-
- /** {@inheritDoc} */
- public void bind(PropertyList pList) throws FOPException {
- commonMarginBlock = pList.getMarginBlockProps();
- masterName = pList.get(PR_MASTER_NAME).getString();
- pageHeight = pList.get(PR_PAGE_HEIGHT).getLength();
- pageWidth = pList.get(PR_PAGE_WIDTH).getLength();
- referenceOrientation = pList.get(PR_REFERENCE_ORIENTATION).getNumeric();
- writingMode = pList.getWritingMode();
-
- if (masterName == null || masterName.equals("")) {
- missingPropertyError("master-name");
- }
- }
-
- /** {@inheritDoc} */
- protected void startOfNode() throws FOPException {
- LayoutMasterSet layoutMasterSet = (LayoutMasterSet) parent;
-
- if (masterName == null) {
- missingPropertyError("master-name");
- } else {
- layoutMasterSet.addSimplePageMaster(this);
- }
-
- //Well, there are only 5 regions so we can save a bit of memory here
- regions = new HashMap<String, Region>(5);
- }
-
- /** {@inheritDoc} */
- protected void endOfNode() throws FOPException {
- if (!hasRegionBody) {
- missingChildElementError(
- "(region-body, region-before?, region-after?, region-start?, region-end?)");
- }
- }
-
- /**
- * {@inheritDoc}
- * <br>XSL Content Model: (region-body,region-before?,region-after?,region-start?,region-end?)
- */
- protected void validateChildNode(Locator loc, String nsURI, String localName)
- throws ValidationException {
- if (FO_URI.equals(nsURI)) {
- if (localName.equals("region-body")) {
- if (hasRegionBody) {
- tooManyNodesError(loc, "fo:region-body");
- } else {
- hasRegionBody = true;
- }
- } else if (localName.equals("region-before")) {
- if (!hasRegionBody) {
- nodesOutOfOrderError(loc, "fo:region-body", "fo:region-before");
- } else if (hasRegionBefore) {
- tooManyNodesError(loc, "fo:region-before");
- } else if (hasRegionAfter) {
- nodesOutOfOrderError(loc, "fo:region-before", "fo:region-after");
- } else if (hasRegionStart) {
- nodesOutOfOrderError(loc, "fo:region-before", "fo:region-start");
- } else if (hasRegionEnd) {
- nodesOutOfOrderError(loc, "fo:region-before", "fo:region-end");
- } else {
- hasRegionBefore = true;
- }
- } else if (localName.equals("region-after")) {
- if (!hasRegionBody) {
- nodesOutOfOrderError(loc, "fo:region-body", "fo:region-after");
- } else if (hasRegionAfter) {
- tooManyNodesError(loc, "fo:region-after");
- } else if (hasRegionStart) {
- nodesOutOfOrderError(loc, "fo:region-after", "fo:region-start");
- } else if (hasRegionEnd) {
- nodesOutOfOrderError(loc, "fo:region-after", "fo:region-end");
- } else {
- hasRegionAfter = true;
- }
- } else if (localName.equals("region-start")) {
- if (!hasRegionBody) {
- nodesOutOfOrderError(loc, "fo:region-body", "fo:region-start");
- } else if (hasRegionStart) {
- tooManyNodesError(loc, "fo:region-start");
- } else if (hasRegionEnd) {
- nodesOutOfOrderError(loc, "fo:region-start", "fo:region-end");
- } else {
- hasRegionStart = true;
- }
- } else if (localName.equals("region-end")) {
- if (!hasRegionBody) {
- nodesOutOfOrderError(loc, "fo:region-body", "fo:region-end");
- } else if (hasRegionEnd) {
- tooManyNodesError(loc, "fo:region-end");
- } else {
- hasRegionEnd = true;
- }
- } else {
- invalidChildError(loc, nsURI, localName);
- }
- }
- }
-
- /** {@inheritDoc} */
- public boolean generatesReferenceAreas() {
- return true;
- }
-
- /** {@inheritDoc} */
- protected void addChildNode(FONode child) throws FOPException {
- if (child instanceof Region) {
- addRegion((Region)child);
- } else {
- super.addChildNode(child);
- }
- }
-
- /**
- * Adds a region to this simple-page-master.
- * @param region region to add
- */
- protected void addRegion(Region region) {
- regions.put(String.valueOf(region.getNameId()), region);
- }
-
- /**
- * Gets the context for the width of the page-reference-area,
- * taking into account the reference-orientation.
- *
- * @param lengthBase the lengthBase to use to resolve percentages
- * @return context for the width of the page-reference-area
- */
- protected final PercentBaseContext getPageWidthContext(int lengthBase) {
- return (this.referenceOrientation.getValue() % 180 == 0)
- ? new SimplePercentBaseContext(
- null,
- lengthBase,
- this.getPageWidth().getValue())
- : new SimplePercentBaseContext(
- null,
- lengthBase,
- this.getPageHeight().getValue());
- }
-
- /**
- * Gets the context for the height of the page-reference-area,
- * taking into account the reference-orientation.
- *
- * @param lengthBase the lengthBase to use to resolve percentages
- * @return the context for the height of the page-reference-area
- */
- protected final PercentBaseContext getPageHeightContext(int lengthBase) {
- return (this.referenceOrientation.getValue() % 180 == 0)
- ? new SimplePercentBaseContext(
- null,
- lengthBase,
- this.getPageHeight().getValue())
- : new SimplePercentBaseContext(
- null,
- lengthBase,
- this.getPageWidth().getValue());
- }
-
- /**
- * Returns the region for a given region class.
- * @param regionId Constants ID of the FO representing the region
- * @return the region, null if it doesn't exist
- */
- public Region getRegion(int regionId) {
- return regions.get(String.valueOf(regionId));
- }
-
- /**
- * Returns a Map of regions associated with this simple-page-master
- * @return the regions
- */
- public Map<String, Region> getRegions() {
- return regions;
- }
-
- /**
- * Indicates if a region with a given name exists in this
- * simple-page-master.
- * @param regionName name of the region to lookup
- * @return True if a region with this name exists
- */
- protected boolean regionNameExists(String regionName) {
- for (Region r : regions.values()) {
- if (r.getRegionName().equals(regionName)) {
- return true;
- }
- }
- return false;
- }
-
- /** @return the Common Margin Properties-Block. */
- public CommonMarginBlock getCommonMarginBlock() {
- return commonMarginBlock;
- }
-
- /** @return "master-name" property. */
- public String getMasterName() {
- return masterName;
- }
-
- /** @return the "page-width" property. */
- public Length getPageWidth() {
- return pageWidth;
- }
-
- /** @return the "page-height" property. */
- public Length getPageHeight() {
- return pageHeight;
- }
-
- /** @return the "writing-mode" property. */
- public int getWritingMode() {
- return writingMode;
- }
-
- /** @return the "reference-orientation" property. */
- public int getReferenceOrientation() {
- return referenceOrientation.getValue();
- }
-
- /** {@inheritDoc} */
- public String getLocalName() {
- return "simple-page-master";
- }
-
- /**
- * {@inheritDoc}
- * @return {@link org.apache.fop.fo.Constants#FO_SIMPLE_PAGE_MASTER}
- */
- public int getNameId() {
- return FO_SIMPLE_PAGE_MASTER;
- }
- }
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