diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/include/pdf/SkPDFDocument.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gfx/skia/trunk/include/pdf/SkPDFDocument.h Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,105 @@ + +/* + * Copyright 2010 The Android Open Source Project + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + + +#ifndef SkPDFDocument_DEFINED +#define SkPDFDocument_DEFINED + +#include "SkAdvancedTypefaceMetrics.h" +#include "SkRefCnt.h" +#include "SkTDArray.h" +#include "SkTemplates.h" + +class SkPDFCatalog; +class SkPDFDevice; +class SkPDFDict; +class SkPDFPage; +class SkPDFObject; +class SkWStream; +template class SkTSet; + +/** \class SkPDFDocument + + A SkPDFDocument assembles pages together and generates the final PDF file. +*/ +class SkPDFDocument { +public: + enum Flags { + kNoCompression_Flags = 0x01, //!< DEPRECATED. + kFavorSpeedOverSize_Flags = 0x01, //!< Don't compress the stream, but + // if it is already compressed return + // the compressed stream. + kNoLinks_Flags = 0x02, //!< do not honor link annotations. + + kDraftMode_Flags = 0x01, + }; + /** Create a PDF document. + */ + explicit SK_API SkPDFDocument(Flags flags = (Flags)0); + SK_API ~SkPDFDocument(); + + /** Output the PDF to the passed stream. It is an error to call this (it + * will return false and not modify stream) if no pages have been added + * or there are pages missing (i.e. page 1 and 3 have been added, but not + * page 2). + * + * @param stream The writable output stream to send the PDF to. + */ + SK_API bool emitPDF(SkWStream* stream); + + /** Sets the specific page to the passed PDF device. If the specified + * page is already set, this overrides it. Returns true if successful. + * Will fail if the document has already been emitted. + * + * @param pageNumber The position to add the passed device (1 based). + * @param pdfDevice The page to add to this document. + */ + SK_API bool setPage(int pageNumber, SkPDFDevice* pdfDevice); + + /** Append the passed pdf device to the document as a new page. Returns + * true if successful. Will fail if the document has already been emitted. + * + * @param pdfDevice The page to add to this document. + */ + SK_API bool appendPage(SkPDFDevice* pdfDevice); + + /** Get the count of unique font types used in the document. + */ + SK_API void getCountOfFontTypes( + int counts[SkAdvancedTypefaceMetrics::kNotEmbeddable_Font + 1]) const; + +private: + SkAutoTDelete fCatalog; + int64_t fXRefFileOffset; + + SkTDArray fPages; + SkTDArray fPageTree; + SkPDFDict* fDocCatalog; + SkTSet* fFirstPageResources; + SkTSet* fOtherPageResources; + SkTDArray fSubstitutes; + + SkPDFDict* fTrailerDict; + + /** Output the PDF header to the passed stream. + * @param stream The writable output stream to send the header to. + */ + void emitHeader(SkWStream* stream); + + /** Get the size of the header. + */ + size_t headerSize(); + + /** Output the PDF footer to the passed stream. + * @param stream The writable output stream to send the footer to. + * @param objCount The number of objects in the PDF. + */ + void emitFooter(SkWStream* stream, int64_t objCount); +}; + +#endif