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comparison: gfx/skia/trunk/include/pdf/SkPDFDocument.h
gfx/skia/trunk/include/pdf/SkPDFDocument.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:41461d14e2fc |
|---|---|
| 1 | |
| 2 /* | |
| 3 * Copyright 2010 The Android Open Source Project | |
| 4 * | |
| 5 * Use of this source code is governed by a BSD-style license that can be | |
| 6 * found in the LICENSE file. | |
| 7 */ | |
| 8 | |
| 9 | |
| 10 #ifndef SkPDFDocument_DEFINED | |
| 11 #define SkPDFDocument_DEFINED | |
| 12 | |
| 13 #include "SkAdvancedTypefaceMetrics.h" | |
| 14 #include "SkRefCnt.h" | |
| 15 #include "SkTDArray.h" | |
| 16 #include "SkTemplates.h" | |
| 17 | |
| 18 class SkPDFCatalog; | |
| 19 class SkPDFDevice; | |
| 20 class SkPDFDict; | |
| 21 class SkPDFPage; | |
| 22 class SkPDFObject; | |
| 23 class SkWStream; | |
| 24 template <typename T> class SkTSet; | |
| 25 | |
| 26 /** \class SkPDFDocument | |
| 27 | |
| 28 A SkPDFDocument assembles pages together and generates the final PDF file. | |
| 29 */ | |
| 30 class SkPDFDocument { | |
| 31 public: | |
| 32 enum Flags { | |
| 33 kNoCompression_Flags = 0x01, //!< DEPRECATED. | |
| 34 kFavorSpeedOverSize_Flags = 0x01, //!< Don't compress the stream, but | |
| 35 // if it is already compressed return | |
| 36 // the compressed stream. | |
| 37 kNoLinks_Flags = 0x02, //!< do not honor link annotations. | |
| 38 | |
| 39 kDraftMode_Flags = 0x01, | |
| 40 }; | |
| 41 /** Create a PDF document. | |
| 42 */ | |
| 43 explicit SK_API SkPDFDocument(Flags flags = (Flags)0); | |
| 44 SK_API ~SkPDFDocument(); | |
| 45 | |
| 46 /** Output the PDF to the passed stream. It is an error to call this (it | |
| 47 * will return false and not modify stream) if no pages have been added | |
| 48 * or there are pages missing (i.e. page 1 and 3 have been added, but not | |
| 49 * page 2). | |
| 50 * | |
| 51 * @param stream The writable output stream to send the PDF to. | |
| 52 */ | |
| 53 SK_API bool emitPDF(SkWStream* stream); | |
| 54 | |
| 55 /** Sets the specific page to the passed PDF device. If the specified | |
| 56 * page is already set, this overrides it. Returns true if successful. | |
| 57 * Will fail if the document has already been emitted. | |
| 58 * | |
| 59 * @param pageNumber The position to add the passed device (1 based). | |
| 60 * @param pdfDevice The page to add to this document. | |
| 61 */ | |
| 62 SK_API bool setPage(int pageNumber, SkPDFDevice* pdfDevice); | |
| 63 | |
| 64 /** Append the passed pdf device to the document as a new page. Returns | |
| 65 * true if successful. Will fail if the document has already been emitted. | |
| 66 * | |
| 67 * @param pdfDevice The page to add to this document. | |
| 68 */ | |
| 69 SK_API bool appendPage(SkPDFDevice* pdfDevice); | |
| 70 | |
| 71 /** Get the count of unique font types used in the document. | |
| 72 */ | |
| 73 SK_API void getCountOfFontTypes( | |
| 74 int counts[SkAdvancedTypefaceMetrics::kNotEmbeddable_Font + 1]) const; | |
| 75 | |
| 76 private: | |
| 77 SkAutoTDelete<SkPDFCatalog> fCatalog; | |
| 78 int64_t fXRefFileOffset; | |
| 79 | |
| 80 SkTDArray<SkPDFPage*> fPages; | |
| 81 SkTDArray<SkPDFDict*> fPageTree; | |
| 82 SkPDFDict* fDocCatalog; | |
| 83 SkTSet<SkPDFObject*>* fFirstPageResources; | |
| 84 SkTSet<SkPDFObject*>* fOtherPageResources; | |
| 85 SkTDArray<SkPDFObject*> fSubstitutes; | |
| 86 | |
| 87 SkPDFDict* fTrailerDict; | |
| 88 | |
| 89 /** Output the PDF header to the passed stream. | |
| 90 * @param stream The writable output stream to send the header to. | |
| 91 */ | |
| 92 void emitHeader(SkWStream* stream); | |
| 93 | |
| 94 /** Get the size of the header. | |
| 95 */ | |
| 96 size_t headerSize(); | |
| 97 | |
| 98 /** Output the PDF footer to the passed stream. | |
| 99 * @param stream The writable output stream to send the footer to. | |
| 100 * @param objCount The number of objects in the PDF. | |
| 101 */ | |
| 102 void emitFooter(SkWStream* stream, int64_t objCount); | |
| 103 }; | |
| 104 | |
| 105 #endif |
