PDF: add support for named destinations

src/pdf/SkPDFDocument.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkPDFCatalog.h"
@@ skipping 89 matching lines @@
         /* TODO(vandebo): output intent
         SkAutoTUnref<SkPDFDict> outputIntent = new SkPDFDict("OutputIntent");
         outputIntent->insert("S", new SkPDFName("GTS_PDFA1"))->unref();
         outputIntent->insert("OutputConditionIdentifier",
                              new SkPDFString("sRGB"))->unref();
         SkAutoTUnref<SkPDFArray> intentArray = new SkPDFArray;
         intentArray->append(outputIntent.get());
         fDocCatalog->insert("OutputIntent", intentArray.get());
         */
 
+        SkPDFDict* dests = SkNEW(SkPDFDict);  // fPageResources owns reference
+        fCatalog->addObject(dests, true /* onFirstPage */);
+        fPageResources.push(dests);
+
         bool firstPage = true;
         for (int i = 0; i < fPages.count(); i++) {
             int resourceCount = fPageResources.count();
             fPages[i]->finalizePage(fCatalog.get(), firstPage, &fPageResources);
             addResourcesToCatalog(resourceCount, firstPage, &fPageResources,
                                   fCatalog.get());
+            fPages[i]->appendDestinations(dests);
             if (i == 0) {
                 firstPage = false;
                 fSecondPageFirstResourceIndex = fPageResources.count();
             }
         }
 
+        fDocCatalog->insert("Dests", SkNEW_ARGS(SkPDFObjRef, (dests)))->unref();
+
         // Build font subsetting info before proceeding.
         perform_font_subsetting(fCatalog.get(), fPages, &fSubstitutes);
 
         // Figure out the size of things and inform the catalog of file offsets.
         off_t fileOffset = headerSize();
         fileOffset += fCatalog->setFileOffset(fDocCatalog, fileOffset);
         fileOffset += fCatalog->setFileOffset(fPages[0], fileOffset);
         fileOffset += fPages[0]->getPageSize(fCatalog.get(),
                 (size_t) fileOffset);
         for (int i = 0; i < fSecondPageFirstResourceIndex; i++) {
@@ skipping 135 matching lines @@
         fTrailerDict->insertInt("Size", int(objCount));
         fTrailerDict->insert("Root", new SkPDFObjRef(fDocCatalog))->unref();
     }
 
     stream->writeText("trailer\n");
     fTrailerDict->emitObject(stream, fCatalog.get(), false);
     stream->writeText("\nstartxref\n");
     stream->writeBigDecAsText(fXRefFileOffset);
     stream->writeText("\n%%EOF");
 }