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authorRichard Worth <rdworth@gmail.com>2010-01-20 13:52:38 +0000
committerRichard Worth <rdworth@gmail.com>2010-01-20 13:52:38 +0000
commita1e069759ddcd3e56deff0d9334559b156df734c (patch)
treee29ffd729d7ee7c8a56e0a273a0fdd18a989be8c /tests/visual/resizable/resizable_option_aspectRatio_preserve_w100xh100.html
parentb0195091a66f0c070610a09744c4325308b24534 (diff)
downloadjquery-ui-a1e069759ddcd3e56deff0d9334559b156df734c.tar.gz
jquery-ui-a1e069759ddcd3e56deff0d9334559b156df734c.zip
switched to jQuery 1.4
Diffstat (limited to 'tests/visual/resizable/resizable_option_aspectRatio_preserve_w100xh100.html')
-rw-r--r--tests/visual/resizable/resizable_option_aspectRatio_preserve_w100xh100.html2
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/visual/resizable/resizable_option_aspectRatio_preserve_w100xh100.html b/tests/visual/resizable/resizable_option_aspectRatio_preserve_w100xh100.html
index b59f9ccf2..52850bf8e 100644
--- a/tests/visual/resizable/resizable_option_aspectRatio_preserve_w100xh100.html
+++ b/tests/visual/resizable/resizable_option_aspectRatio_preserve_w100xh100.html
@@ -4,7 +4,7 @@
<title>Resizable Visual Test : Default</title>
<link rel="stylesheet" href="../visual.css" type="text/css" />
<link rel="stylesheet" href="../../../themes/base/ui.all.css" type="text/css" />
- <script type="text/javascript" src="../../../jquery-1.3.2.js"></script>
+ <script type="text/javascript" src="../../../jquery-1.4.js"></script>
<script type="text/javascript" src="../../../ui/jquery.ui.core.js"></script>
<script type="text/javascript" src="../../../ui/jquery.ui.widget.js"></script>
<script type="text/javascript" src="../../../ui/jquery.ui.mouse.js"></script>
href='#n75'>75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744
/*
 * 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.render.pdf;

import java.awt.color.ICC_Profile;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.EnumMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.io.IOUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.apache.xmlgraphics.java2d.color.profile.ColorProfileUtil;
import org.apache.xmlgraphics.xmp.Metadata;
import org.apache.xmlgraphics.xmp.schemas.DublinCoreSchema;
import org.apache.xmlgraphics.xmp.schemas.XMPBasicAdapter;
import org.apache.xmlgraphics.xmp.schemas.XMPBasicSchema;

import org.apache.fop.accessibility.Accessibility;
import org.apache.fop.apps.FOUserAgent;
import org.apache.fop.apps.io.InternalResourceResolver;
import org.apache.fop.fo.extensions.xmp.XMPMetadata;
import org.apache.fop.pdf.PDFAMode;
import org.apache.fop.pdf.PDFArray;
import org.apache.fop.pdf.PDFConformanceException;
import org.apache.fop.pdf.PDFDictionary;
import org.apache.fop.pdf.PDFDocument;
import org.apache.fop.pdf.PDFEmbeddedFile;
import org.apache.fop.pdf.PDFEmbeddedFiles;
import org.apache.fop.pdf.PDFEncryptionManager;
import org.apache.fop.pdf.PDFEncryptionParams;
import org.apache.fop.pdf.PDFFileSpec;
import org.apache.fop.pdf.PDFICCBasedColorSpace;
import org.apache.fop.pdf.PDFICCStream;
import org.apache.fop.pdf.PDFInfo;
import org.apache.fop.pdf.PDFLayer;
import org.apache.fop.pdf.PDFMetadata;
import org.apache.fop.pdf.PDFName;
import org.apache.fop.pdf.PDFNames;
import org.apache.fop.pdf.PDFNavigator;
import org.apache.fop.pdf.PDFNull;
import org.apache.fop.pdf.PDFNumber;
import org.apache.fop.pdf.PDFOutputIntent;
import org.apache.fop.pdf.PDFPage;
import org.apache.fop.pdf.PDFPageLabels;
import org.apache.fop.pdf.PDFReference;
import org.apache.fop.pdf.PDFSetOCGStateAction;
import org.apache.fop.pdf.PDFText;
import org.apache.fop.pdf.PDFTransitionAction;
import org.apache.fop.pdf.PDFXMode;
import org.apache.fop.pdf.Version;
import org.apache.fop.pdf.VersionController;
import org.apache.fop.render.pdf.extensions.PDFActionExtension;
import org.apache.fop.render.pdf.extensions.PDFArrayExtension;
import org.apache.fop.render.pdf.extensions.PDFCollectionEntryExtension;
import org.apache.fop.render.pdf.extensions.PDFDictionaryAttachment;
import org.apache.fop.render.pdf.extensions.PDFDictionaryExtension;
import org.apache.fop.render.pdf.extensions.PDFDictionaryType;
import org.apache.fop.render.pdf.extensions.PDFEmbeddedFileAttachment;
import org.apache.fop.render.pdf.extensions.PDFObjectType;
import org.apache.fop.render.pdf.extensions.PDFPageExtension;
import org.apache.fop.render.pdf.extensions.PDFReferenceExtension;

import static org.apache.fop.render.pdf.PDFEncryptionOption.ENCRYPTION_PARAMS;
import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_ACCESSCONTENT;
import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_ANNOTATIONS;
import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_ASSEMBLEDOC;
import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_COPY_CONTENT;
import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_EDIT_CONTENT;
import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_FILLINFORMS;
import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_PRINT;
import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_PRINTHQ;
import static org.apache.fop.render.pdf.PDFEncryptionOption.OWNER_PASSWORD;
import static org.apache.fop.render.pdf.PDFEncryptionOption.USER_PASSWORD;


/**
 * Utility class which enables all sorts of features that are not directly connected to the
 * normal rendering process.
 */
class PDFRenderingUtil {

    /** logging instance */
    private static Log log = LogFactory.getLog(PDFRenderingUtil.class);

    private FOUserAgent userAgent;

    /** the PDF Document being created */
    private PDFDocument pdfDoc;

    private PDFRendererOptionsConfig rendererConfig;

    /** the ICC stream used as output profile by this document for PDF/A and PDF/X functionality. */
    private PDFICCStream outputProfile;

    /** the default sRGB color space. */
    private PDFICCBasedColorSpace sRGBColorSpace;

    PDFRenderingUtil(FOUserAgent userAgent) {
        this.userAgent = userAgent;
        initialize();
    }

    private void initialize() {
        rendererConfig = PDFRendererOptionsConfig.DEFAULT.merge(createFromUserAgent(userAgent));
        if (rendererConfig.getPDFAMode().isLevelA()) {
            // PDF/A Level A requires tagged PDF
            userAgent.getRendererOptions().put(Accessibility.ACCESSIBILITY, Boolean.TRUE);
        }
    }

    private static  PDFRendererOptionsConfig createFromUserAgent(FOUserAgent userAgent) {
        Map<PDFRendererOption, Object> properties
                = new EnumMap<PDFRendererOption, Object>(PDFRendererOption.class);
        for (PDFRendererOption option : PDFRendererOption.values()) {
            Object value = userAgent.getRendererOption(option);
            properties.put(option, option.parse(value));
        }
        PDFEncryptionParams encryptionConfig = new EncryptionParamsBuilder().createParams(userAgent);
        return new PDFRendererOptionsConfig(properties, encryptionConfig);
    }

    void mergeRendererOptionsConfig(PDFRendererOptionsConfig config) {
        rendererConfig = rendererConfig.merge(config);
    }

    private void updateInfo() {
        PDFInfo info = pdfDoc.getInfo();
        info.setCreator(userAgent.getCreator());
        info.setCreationDate(userAgent.getCreationDate());
        info.setAuthor(userAgent.getAuthor());
        info.setTitle(userAgent.getTitle());
        info.setSubject(userAgent.getSubject());
        info.setKeywords(userAgent.getKeywords());
    }

    private void updatePDFProfiles() {
        pdfDoc.getProfile().setPDFAMode(rendererConfig.getPDFAMode());
        pdfDoc.getProfile().setPDFXMode(rendererConfig.getPDFXMode());
    }

    private void addsRGBColorSpace() throws IOException {
        if (rendererConfig.getDisableSRGBColorSpace()) {
            if (rendererConfig.getPDFAMode() != PDFAMode.DISABLED
                    || rendererConfig.getPDFXMode() != PDFXMode.DISABLED
                    || rendererConfig.getOutputProfileURI() != null) {
                throw new IllegalStateException("It is not possible to disable the sRGB color"
                        + " space if PDF/A or PDF/X functionality is enabled or an"
                        + " output profile is set!");
            }
        } else {
            if (this.sRGBColorSpace != null) {
                return;
            }
            //Map sRGB as default RGB profile for DeviceRGB
            this.sRGBColorSpace = PDFICCBasedColorSpace.setupsRGBAsDefaultRGBColorSpace(pdfDoc);
        }
    }

    private void addDefaultOutputProfile() throws IOException {
        if (this.outputProfile != null) {
            return;
        }
        ICC_Profile profile;
        InputStream in = null;
        URI outputProfileUri = rendererConfig.getOutputProfileURI();
        if (outputProfileUri != null) {
            this.outputProfile = pdfDoc.getFactory().makePDFICCStream();
            in = userAgent.getResourceResolver().getResource(rendererConfig.getOutputProfileURI());
            try {
                profile = ColorProfileUtil.getICC_Profile(in);
            } finally {
                IOUtils.closeQuietly(in);
            }
            this.outputProfile.setColorSpace(profile, null);
        } else {
            //Fall back to sRGB profile
            outputProfile = sRGBColorSpace.getICCStream();
        }
    }

    /**
     * Adds an OutputIntent to the PDF as mandated by PDF/A-1 when uncalibrated color spaces
     * are used (which is true if we use DeviceRGB to represent sRGB colors).
     * @throws IOException in case of an I/O problem
     */
    private void addPDFA1OutputIntent() throws IOException {
        addDefaultOutputProfile();

        String desc = ColorProfileUtil.getICCProfileDescription(this.outputProfile.getICCProfile());
        PDFOutputIntent outputIntent = pdfDoc.getFactory().makeOutputIntent();
        outputIntent.setSubtype(PDFOutputIntent.GTS_PDFA1);
        outputIntent.setDestOutputProfile(this.outputProfile);
        outputIntent.setOutputConditionIdentifier(desc);
        outputIntent.setInfo(outputIntent.getOutputConditionIdentifier());
        pdfDoc.getRoot().addOutputIntent(outputIntent);
    }

    /**
     * Adds an OutputIntent to the PDF as mandated by PDF/X when uncalibrated color spaces
     * are used (which is true if we use DeviceRGB to represent sRGB colors).
     * @throws IOException in case of an I/O problem
     */
    private void addPDFXOutputIntent() throws IOException {
        addDefaultOutputProfile();

        String desc = ColorProfileUtil.getICCProfileDescription(this.outputProfile.getICCProfile());
        int deviceClass = this.outputProfile.getICCProfile().getProfileClass();
        if (deviceClass != ICC_Profile.CLASS_OUTPUT) {
            throw new PDFConformanceException(pdfDoc.getProfile().getPDFXMode() + " requires that"
                    + " the DestOutputProfile be an Output Device Profile. "
                    + desc + " does not match that requirement.");
        }
        PDFOutputIntent outputIntent = pdfDoc.getFactory().makeOutputIntent();
        outputIntent.setSubtype(PDFOutputIntent.GTS_PDFX);
        outputIntent.setDestOutputProfile(this.outputProfile);
        outputIntent.setOutputConditionIdentifier(desc);
        outputIntent.setInfo(outputIntent.getOutputConditionIdentifier());
        pdfDoc.getRoot().addOutputIntent(outputIntent);
    }

    public void renderXMPMetadata(XMPMetadata metadata) {
        Metadata docXMP = metadata.getMetadata();
        Metadata fopXMP = PDFMetadata.createXMPFromPDFDocument(pdfDoc);
        //Merge FOP's own metadata into the one from the XSL-FO document
        List<Class> exclude = new ArrayList<Class>();
        if (pdfDoc.getProfile().getPDFAMode().isPart1()) {
            exclude.add(DublinCoreSchema.class);
        }
        fopXMP.mergeInto(docXMP, exclude);
        XMPBasicAdapter xmpBasic = XMPBasicSchema.getAdapter(docXMP);
        //Metadata was changed so update metadata date
        xmpBasic.setMetadataDate(new java.util.Date());
        PDFMetadata.updateInfoFromMetadata(docXMP, pdfDoc.getInfo());

        PDFMetadata pdfMetadata = pdfDoc.getFactory().makeMetadata(
                docXMP, metadata.isReadOnly());
        pdfDoc.getRoot().setMetadata(pdfMetadata);
    }

    public void generateDefaultXMPMetadata() {
        if (pdfDoc.getRoot().getMetadata() == null) {
            //If at this time no XMP metadata for the overall document has been set, create it
            //from the PDFInfo object.
            Metadata xmp = PDFMetadata.createXMPFromPDFDocument(pdfDoc);
            PDFMetadata pdfMetadata = pdfDoc.getFactory().makeMetadata(
                    xmp, true);
            pdfDoc.getRoot().setMetadata(pdfMetadata);
        }
    }

    public void renderDictionaryExtension(PDFDictionaryAttachment attachment, PDFPage currentPage) {
        PDFDictionaryExtension extension = attachment.getExtension();
        PDFDictionaryType type = extension.getDictionaryType();
        if (type == PDFDictionaryType.Action) {
            addNavigatorAction(extension);
        } else if (type == PDFDictionaryType.Layer) {
            addLayer(extension);
        } else if (type == PDFDictionaryType.Navigator) {
            addNavigator(extension);
        } else {
            renderDictionaryExtension(extension, currentPage);
        }
    }

    public void addLayer(PDFDictionaryExtension extension) {
        assert extension.getDictionaryType() == PDFDictionaryType.Layer;
        String id = extension.getProperty(PDFDictionaryExtension.PROPERTY_ID);
        if ((id != null) && (id.length() > 0)) {
            PDFLayer layer = pdfDoc.getFactory().makeLayer(id);
            layer.setResolver(new PDFLayer.Resolver(layer, extension) {
                public void performResolution() {
                    PDFDictionaryExtension extension = (PDFDictionaryExtension) getExtension();
                    Object name = extension.findEntryValue("Name");
                    Object intent = extension.findEntryValue("Intent");
                    Object usage = makeDictionary(extension.findEntryValue("Usage"));
                    getLayer().populate(name, intent, usage);
                }
            });
        }
    }

    public void addNavigatorAction(PDFDictionaryExtension extension) {
        assert extension.getDictionaryType() == PDFDictionaryType.Action;
        String id = extension.getProperty(PDFDictionaryExtension.PROPERTY_ID);
        if ((id != null) && (id.length() > 0)) {
            String type = extension.getProperty(PDFActionExtension.PROPERTY_TYPE);
            if (type != null) {
                if (type.equals("SetOCGState")) {
                    PDFSetOCGStateAction action = pdfDoc.getFactory().makeSetOCGStateAction(id);
                    action.setResolver(new PDFSetOCGStateAction.Resolver(action, extension) {
                        public void performResolution() {
                            PDFDictionaryExtension extension = (PDFDictionaryExtension) getExtension();
                            Object state = makeArray(extension.findEntryValue("State"));
                            Object preserveRB = extension.findEntryValue("PreserveRB");
                            Object nextAction = makeDictionaryOrArray(extension.findEntryValue("Next"));
                            getAction().populate(state, preserveRB, nextAction);
                        }
                    });
                } else if (type.equals("Trans")) {
                    PDFTransitionAction action = pdfDoc.getFactory().makeTransitionAction(id);
                    action.setResolver(new PDFTransitionAction.Resolver(action, extension) {
                        public void performResolution() {
                            PDFDictionaryExtension extension = (PDFDictionaryExtension) getExtension();
                            Object transition = makeDictionary(extension.findEntryValue("Trans"));
                            Object nextAction = makeDictionaryOrArray(extension.findEntryValue("Next"));
                            getAction().populate(transition, nextAction);
                        }
                    });
                } else {
                    throw new UnsupportedOperationException();
                }
            }
        }
    }

    public void addNavigator(PDFDictionaryExtension extension) {
        assert extension.getDictionaryType() == PDFDictionaryType.Navigator;
        String id = extension.getProperty(PDFDictionaryExtension.PROPERTY_ID);
        if ((id != null) && (id.length() > 0)) {
            PDFNavigator navigator = pdfDoc.getFactory().makeNavigator(id);
            navigator.setResolver(new PDFNavigator.Resolver(navigator, extension) {
                public void performResolution() {
                    PDFDictionaryExtension extension = (PDFDictionaryExtension) getExtension();
                    Object nextAction = makeDictionary(extension.findEntryValue("NA"));
                    Object next = makeDictionary(extension.findEntryValue("Next"));
                    Object prevAction = makeDictionary(extension.findEntryValue("PA"));
                    Object prev = makeDictionary(extension.findEntryValue("Prev"));
                    Object duration = extension.findEntryValue("Dur");
                    getNavigator().populate(nextAction, next, prevAction, prev, duration);
                }
            });
        }
    }

    private Object makeArray(Object value) {
        if (value == null) {
            return null;
        } else if (value instanceof PDFReferenceExtension) {
            return resolveReference((PDFReferenceExtension) value);
        } else if (value instanceof List<?>) {
            return populateArray(new PDFArray(), (List<?>) value);
        } else {
            throw new IllegalArgumentException();
        }
    }

    private Object populateArray(PDFArray array, List<?> entries) {
        for (PDFCollectionEntryExtension entry : (List<PDFCollectionEntryExtension>) entries) {
            PDFObjectType type = entry.getType();
            if (type == PDFObjectType.Array) {
                array.add(makeArray(entry.getValue()));
            } else if (type == PDFObjectType.Boolean) {
                array.add(entry.getValueAsBoolean());
            } else if (type == PDFObjectType.Dictionary) {
                array.add(makeDictionary(entry.getValue()));
            } else if (type == PDFObjectType.Name) {
                array.add(new PDFName(entry.getValueAsString()));
            } else if (type == PDFObjectType.Number) {
                array.add(new PDFNumber(entry.getValueAsNumber()));
            } else if (type == PDFObjectType.Reference) {
                array.add(resolveReference((PDFReferenceExtension) entry));
            } else if (type == PDFObjectType.String) {
                array.add(entry.getValue());
            }
        }
        return array;
    }

    private Object makeDictionary(Object value) {
        if (value == null) {
            return null;
        } else if (value instanceof PDFReferenceExtension) {
            return resolveReference((PDFReferenceExtension) value);
        } else if (value instanceof List<?>) {
            return populateDictionary(new PDFDictionary(), (List<?>) value);
        } else {
            throw new IllegalArgumentException();
        }
    }

    private Object populateDictionary(PDFDictionary dictionary, List<?> entries) {
        for (PDFCollectionEntryExtension entry : (List<PDFCollectionEntryExtension>) entries) {
            PDFObjectType type = entry.getType();
            String key = entry.getKey();
            if (type == PDFObjectType.Array) {
                dictionary.put(key, makeArray(entry.getValue()));
            } else if (type == PDFObjectType.Boolean) {
                dictionary.put(key, entry.getValueAsBoolean());
            } else if (type == PDFObjectType.Dictionary) {
                dictionary.put(key, makeDictionary(entry.getValue()));
            } else if (type == PDFObjectType.Name) {
                dictionary.put(key, new PDFName(entry.getValueAsString()));
            } else if (type == PDFObjectType.Number) {
                dictionary.put(key, new PDFNumber(entry.getValueAsNumber()));
            } else if (type == PDFObjectType.Reference) {
                dictionary.put(key, resolveReference((PDFReferenceExtension) entry));
            } else if (type == PDFObjectType.String) {
                dictionary.put(key, entry.getValue());
            }
        }
        return dictionary;
    }

    private Object makeDictionaryOrArray(Object value) {
        if (value == null) {
            return null;
        } else if (value instanceof PDFReferenceExtension) {
            return resolveReference((PDFReferenceExtension) value);
        } else if (value instanceof List<?>) {
            if (hasKeyedEntry((List<?>) value)) {
                return populateDictionary(new PDFDictionary(), (List<?>) value);
            } else {
                return populateArray(new PDFArray(), (List<?>) value);
            }
        } else {
            throw new IllegalArgumentException();
        }
    }

    private boolean hasKeyedEntry(List<?> entries) {
        for (PDFCollectionEntryExtension entry : (List<PDFCollectionEntryExtension>) entries) {
            if (entry.getKey() != null) {
                return true;
            }
        }
        return false;
    }

    public void renderDictionaryExtension(PDFDictionaryExtension extension, PDFPage currentPage) {
        PDFDictionaryType type = extension.getDictionaryType();
        if (type == PDFDictionaryType.Catalog) {
            augmentDictionary(pdfDoc.getRoot(), extension);
        } else if (type == PDFDictionaryType.Page) {
            assert extension instanceof PDFPageExtension;
            if (((PDFPageExtension) extension).matchesPageNumber(currentPage.getPageIndex() + 1)) {
                augmentDictionary(currentPage, extension);
            }
        } else if (type == PDFDictionaryType.Info) {
            PDFInfo info = pdfDoc.getInfo();
            for (PDFCollectionEntryExtension entry : extension.getEntries()) {
                info.put(entry.getKey(), entry.getValueAsString());
            }
        } else {
            throw new IllegalStateException();
        }
    }

    private PDFDictionary augmentDictionary(PDFDictionary dictionary, PDFDictionaryExtension extension) {
        for (PDFCollectionEntryExtension entry : extension.getEntries()) {
            if (entry instanceof PDFDictionaryExtension) {
                dictionary.put(entry.getKey(),
                        augmentDictionary(new PDFDictionary(dictionary), (PDFDictionaryExtension) entry));
            } else if (entry instanceof PDFArrayExtension) {
                dictionary.put(entry.getKey(), augmentArray(new PDFArray(dictionary), (PDFArrayExtension) entry));
            } else {
                augmentDictionary(dictionary, entry);
            }
        }
        return dictionary;
    }

    private void augmentDictionary(PDFDictionary dictionary, PDFCollectionEntryExtension entry) {
        PDFObjectType type = entry.getType();
        String key = entry.getKey();
        if (type == PDFObjectType.Boolean) {
            dictionary.put(key, entry.getValueAsBoolean());
        } else if (type == PDFObjectType.Name) {
            dictionary.put(key, new PDFName(entry.getValueAsString()));
        } else if (type == PDFObjectType.Number) {
            dictionary.put(key, new PDFNumber(entry.getValueAsNumber()));
        } else if (type == PDFObjectType.Reference) {
            assert entry instanceof PDFReferenceExtension;
            dictionary.put(key, resolveReference((PDFReferenceExtension) entry));
        } else if (type == PDFObjectType.String) {
            dictionary.put(key, entry.getValueAsString());
        } else {
            throw new IllegalStateException();
        }
    }

    private Object resolveReference(PDFReferenceExtension entry) {
        PDFReference reference = (PDFReference) entry.getResolvedReference();
        if (reference == null) {
            reference = pdfDoc.resolveExtensionReference(entry.getReferenceId());
            if (reference != null) {
                entry.setResolvedReference(reference);
            }
            return reference;
        }
        return PDFNull.INSTANCE;
    }

    private PDFArray augmentArray(PDFArray array, PDFArrayExtension extension) {
        for (PDFCollectionEntryExtension entry : extension.getEntries()) {
            if (entry instanceof PDFDictionaryExtension) {
                array.add(augmentDictionary(new PDFDictionary(array), (PDFDictionaryExtension) entry));
            } else if (entry instanceof PDFArrayExtension) {
                array.add(augmentArray(new PDFArray(array), (PDFArrayExtension) entry));
            } else {
                augmentArray(array, entry);
            }
        }
        return array;
    }

    private void augmentArray(PDFArray array, PDFCollectionEntryExtension entry) {
        PDFObjectType type = entry.getType();
        if (type == PDFObjectType.Boolean) {
            array.add(entry.getValueAsBoolean());
        } else if (type == PDFObjectType.Name) {
            array.add(new PDFName(entry.getValueAsString()));
        } else if (type == PDFObjectType.Number) {
            array.add(new PDFNumber(entry.getValueAsNumber()));
        } else if (type == PDFObjectType.Reference) {
            assert entry instanceof PDFReferenceExtension;
            array.add(resolveReference((PDFReferenceExtension) entry));
        } else if (type == PDFObjectType.String) {
            array.add(entry.getValueAsString());
        } else {
            throw new IllegalStateException();
        }
    }

    public PDFDocument setupPDFDocument(OutputStream out) throws IOException {
        if (this.pdfDoc != null) {
            throw new IllegalStateException("PDFDocument already set up");
        }

        String producer = userAgent.getProducer() != null ? userAgent.getProducer() : "";
        final Version maxPDFVersion = rendererConfig.getPDFVersion();
        if (maxPDFVersion == null) {
            this.pdfDoc = new PDFDocument(producer);
        } else {
            VersionController controller
                    = VersionController.getFixedVersionController(maxPDFVersion);
            this.pdfDoc = new PDFDocument(producer, controller);
        }
        updateInfo();
        updatePDFProfiles();
        pdfDoc.setFilterMap(rendererConfig.getFilterMap());
        pdfDoc.outputHeader(out);

        //Setup encryption if necessary
        PDFEncryptionManager.setupPDFEncryption(rendererConfig.getEncryptionParameters(), pdfDoc);

        addsRGBColorSpace();
        if (rendererConfig.getOutputProfileURI() != null) {
            addDefaultOutputProfile();
        }
        PDFXMode pdfXMode = rendererConfig.getPDFXMode();
        if (pdfXMode != PDFXMode.DISABLED) {
            log.debug(pdfXMode + " is active.");
            log.warn("Note: " + pdfXMode
                    + " support is work-in-progress and not fully implemented, yet!");
            addPDFXOutputIntent();
        }
        PDFAMode pdfAMode = rendererConfig.getPDFAMode();
        if (pdfAMode.isEnabled()) {
            log.debug("PDF/A is active. Conformance Level: " + pdfAMode);
            addPDFA1OutputIntent();
        }

        this.pdfDoc.enableAccessibility(userAgent.isAccessibilityEnabled());
        pdfDoc.setMergeFontsEnabled(rendererConfig.getMergeFontsEnabled());
        pdfDoc.setLinearizationEnabled(rendererConfig.getLinearizationEnabled());

        return this.pdfDoc;
    }

    /**
     * Generates a page label in the PDF document.
     * @param pageIndex the index of the page
     * @param pageNumber the formatted page number
     */
    public void generatePageLabel(int pageIndex, String pageNumber) {
        //Produce page labels
        PDFPageLabels pageLabels = this.pdfDoc.getRoot().getPageLabels();
        if (pageLabels == null) {
            //Set up PageLabels
            pageLabels = this.pdfDoc.getFactory().makePageLabels();
            this.pdfDoc.getRoot().setPageLabels(pageLabels);
        }
        pageLabels.addPageLabel(pageIndex, pageNumber);
    }

    /**
     * Adds an embedded file to the PDF file.
     * @param embeddedFile the object representing the embedded file to be added
     * @throws IOException if an I/O error occurs
     */
    public void addEmbeddedFile(PDFEmbeddedFileAttachment embeddedFile)
            throws IOException {
        this.pdfDoc.getProfile().verifyEmbeddedFilesAllowed();
        PDFNames names = this.pdfDoc.getRoot().getNames();
        if (names == null) {
            //Add Names if not already present
            names = this.pdfDoc.getFactory().makeNames();
            this.pdfDoc.getRoot().setNames(names);
        }

        //Create embedded file
        PDFEmbeddedFile file = new PDFEmbeddedFile();
        this.pdfDoc.registerObject(file);
        URI srcURI;
        try {
            srcURI = InternalResourceResolver.cleanURI(embeddedFile.getSrc());
        } catch (URISyntaxException use) {
            throw new RuntimeException(use);
        }
        InputStream in = userAgent.getResourceResolver().getResource(srcURI);
        if (in == null) {
            throw new FileNotFoundException(embeddedFile.getSrc());
        }
        try {
            OutputStream out = file.getBufferOutputStream();
            IOUtils.copyLarge(in, out);
        } finally {
            IOUtils.closeQuietly(in);
        }
        PDFDictionary dict = new PDFDictionary();
        dict.put("F", file);
        String filename = PDFText.toPDFString(embeddedFile.getFilename(), '_');
        PDFFileSpec fileSpec = new PDFFileSpec(filename);
        fileSpec.setEmbeddedFile(dict);
        if (embeddedFile.getDesc() != null) {
            fileSpec.setDescription(embeddedFile.getDesc());
        }
        this.pdfDoc.registerObject(fileSpec);

        //Make sure there is an EmbeddedFiles in the Names dictionary
        PDFEmbeddedFiles embeddedFiles = names.getEmbeddedFiles();
        if (embeddedFiles == null) {
            embeddedFiles = new PDFEmbeddedFiles();
            this.pdfDoc.assignObjectNumber(embeddedFiles);
            this.pdfDoc.addTrailerObject(embeddedFiles);
            names.setEmbeddedFiles(embeddedFiles);
        }

        //Add to EmbeddedFiles in the Names dictionary
        PDFArray nameArray = embeddedFiles.getNames();
        if (nameArray == null) {
            nameArray = new PDFArray();
            embeddedFiles.setNames(nameArray);
        }
        String name = PDFText.toPDFString(filename);
        nameArray.add(name);
        nameArray.add(new PDFReference(fileSpec));
    }

    private static final class EncryptionParamsBuilder {
        private PDFEncryptionParams params;

        private EncryptionParamsBuilder() {
        }

        private PDFEncryptionParams createParams(FOUserAgent userAgent) {
            params = (PDFEncryptionParams) userAgent.getRendererOptions().get(ENCRYPTION_PARAMS);
            String userPassword = (String) userAgent.getRendererOption(USER_PASSWORD);
            if (userPassword != null) {
                getEncryptionParams().setUserPassword(userPassword);
            }
            String ownerPassword = (String) userAgent.getRendererOption(OWNER_PASSWORD);
            if (ownerPassword != null) {
                getEncryptionParams().setOwnerPassword(ownerPassword);
            }
            Object noPrint = userAgent.getRendererOption(NO_PRINT);
            if (noPrint != null) {
                getEncryptionParams().setAllowPrint(!booleanValueOf(noPrint));
            }
            Object noCopyContent = userAgent.getRendererOption(NO_COPY_CONTENT);
            if (noCopyContent != null) {
                getEncryptionParams().setAllowCopyContent(!booleanValueOf(noCopyContent));
            }
            Object noEditContent = userAgent.getRendererOption(NO_EDIT_CONTENT);
            if (noEditContent != null) {
                getEncryptionParams().setAllowEditContent(!booleanValueOf(noEditContent));
            }
            Object noAnnotations = userAgent.getRendererOption(NO_ANNOTATIONS);
            if (noAnnotations != null) {
                getEncryptionParams().setAllowEditAnnotations(!booleanValueOf(noAnnotations));
            }
            Object noFillInForms = userAgent.getRendererOption(NO_FILLINFORMS);
            if (noFillInForms != null) {
                getEncryptionParams().setAllowFillInForms(!booleanValueOf(noFillInForms));
            }
            Object noAccessContent = userAgent.getRendererOption(NO_ACCESSCONTENT);
            if (noAccessContent != null) {
                getEncryptionParams().setAllowAccessContent(!booleanValueOf(noAccessContent));
            }
            Object noAssembleDoc = userAgent.getRendererOption(NO_ASSEMBLEDOC);
            if (noAssembleDoc != null) {
                getEncryptionParams().setAllowAssembleDocument(!booleanValueOf(noAssembleDoc));
            }
            Object noPrintHQ = userAgent.getRendererOption(NO_PRINTHQ);
            if (noPrintHQ != null) {
                getEncryptionParams().setAllowPrintHq(!booleanValueOf(noPrintHQ));
            }
            return params;
        }

        private PDFEncryptionParams getEncryptionParams() {
            if (params == null) {
                params = new PDFEncryptionParams();
            }
            return params;
        }

        private static boolean booleanValueOf(Object obj) {
            if (obj instanceof Boolean) {
                return ((Boolean)obj).booleanValue();
            } else if (obj instanceof String) {
                return Boolean.valueOf((String)obj).booleanValue();
            } else {
                throw new IllegalArgumentException("Boolean or \"true\" or \"false\" expected.");
            }
        }
    }
}