gfx/skia/trunk/src/pdf/SkPDFPage.h@129ffea94266 (annotated)
gfx/skia/trunk/src/pdf/SkPDFPage.h
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
| michael@0 | 1 | |
| michael@0 | 2 | /* |
| michael@0 | 3 | * Copyright 2010 The Android Open Source Project |
| michael@0 | 4 | * |
| michael@0 | 5 | * Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 6 | * found in the LICENSE file. |
| michael@0 | 7 | */ |
| michael@0 | 8 | |
| michael@0 | 9 | |
| michael@0 | 10 | #ifndef SkPDFPage_DEFINED |
| michael@0 | 11 | #define SkPDFPage_DEFINED |
| michael@0 | 12 | |
| michael@0 | 13 | #include "SkPDFTypes.h" |
| michael@0 | 14 | #include "SkPDFStream.h" |
| michael@0 | 15 | #include "SkRefCnt.h" |
| michael@0 | 16 | #include "SkTDArray.h" |
| michael@0 | 17 | |
| michael@0 | 18 | class SkPDFCatalog; |
| michael@0 | 19 | class SkPDFDevice; |
| michael@0 | 20 | class SkWStream; |
| michael@0 | 21 | |
| michael@0 | 22 | /** \class SkPDFPage |
| michael@0 | 23 | |
| michael@0 | 24 | A SkPDFPage contains meta information about a page, is used in the page |
| michael@0 | 25 | tree and points to the content of the page. |
| michael@0 | 26 | */ |
| michael@0 | 27 | class SkPDFPage : public SkPDFDict { |
| michael@0 | 28 | SK_DECLARE_INST_COUNT(SkPDFPage) |
| michael@0 | 29 | public: |
| michael@0 | 30 | /** Create a PDF page with the passed PDF device. The device need not |
| michael@0 | 31 | * have content on it yet. |
| michael@0 | 32 | * @param content The page content. |
| michael@0 | 33 | */ |
| michael@0 | 34 | explicit SkPDFPage(SkPDFDevice* content); |
| michael@0 | 35 | ~SkPDFPage(); |
| michael@0 | 36 | |
| michael@0 | 37 | /** Before a page and its contents can be sized and emitted, it must |
| michael@0 | 38 | * be finalized. No changes to the PDFDevice will be honored after |
| michael@0 | 39 | * finalizePage has been called. This function adds the page content |
| michael@0 | 40 | * to the passed catalog, so it must be called for each document |
| michael@0 | 41 | * that the page is part of. |
| michael@0 | 42 | * @param catalog The catalog to add page content objects to. |
| michael@0 | 43 | * @param firstPage Indicate if this is the first page of a document. |
| michael@0 | 44 | * @param newResourceObjects All the resource objects (recursively) used on |
| michael@0 | 45 | * the page are added to this array. This gives |
| michael@0 | 46 | * the caller a chance to deduplicate resources |
| michael@0 | 47 | * across pages. |
| michael@0 | 48 | * @param knownResourceObjects The set of resources to be ignored. |
| michael@0 | 49 | */ |
| michael@0 | 50 | void finalizePage(SkPDFCatalog* catalog, bool firstPage, |
| michael@0 | 51 | const SkTSet<SkPDFObject*>& knownResourceObjects, |
| michael@0 | 52 | SkTSet<SkPDFObject*>* newResourceObjects); |
| michael@0 | 53 | |
| michael@0 | 54 | /** Add destinations for this page to the supplied dictionary. |
| michael@0 | 55 | * @param dict Dictionary to add destinations to. |
| michael@0 | 56 | */ |
| michael@0 | 57 | void appendDestinations(SkPDFDict* dict); |
| michael@0 | 58 | |
| michael@0 | 59 | /** Determine the size of the page content and store to the catalog |
| michael@0 | 60 | * the offsets of all nonresource-indirect objects that make up the page |
| michael@0 | 61 | * content. This must be called before emitPage(), but after finalizePage. |
| michael@0 | 62 | * @param catalog The catalog to add the object offsets to. |
| michael@0 | 63 | * @param fileOffset The file offset where the page content will be |
| michael@0 | 64 | * emitted. |
| michael@0 | 65 | */ |
| michael@0 | 66 | off_t getPageSize(SkPDFCatalog* catalog, off_t fileOffset); |
| michael@0 | 67 | |
| michael@0 | 68 | /** Output the page content to the passed stream. |
| michael@0 | 69 | * @param stream The writable output stream to send the content to. |
| michael@0 | 70 | * @param catalog The active object catalog. |
| michael@0 | 71 | */ |
| michael@0 | 72 | void emitPage(SkWStream* stream, SkPDFCatalog* catalog); |
| michael@0 | 73 | |
| michael@0 | 74 | /** Generate a page tree for the passed vector of pages. New objects are |
| michael@0 | 75 | * added to the catalog. The pageTree vector is populated with all of |
| michael@0 | 76 | * the 'Pages' dictionaries as well as the 'Page' objects. Page trees |
| michael@0 | 77 | * have both parent and children links, creating reference cycles, so |
| michael@0 | 78 | * it must be torn down explicitly. The first page is not added to |
| michael@0 | 79 | * the pageTree dictionary array so the caller can handle it specially. |
| michael@0 | 80 | * @param pages The ordered vector of page objects. |
| michael@0 | 81 | * @param catalog The catalog to add new objects into. |
| michael@0 | 82 | * @param pageTree An output vector with all of the internal and leaf |
| michael@0 | 83 | * nodes of the pageTree. |
| michael@0 | 84 | * @param rootNode An output parameter set to the root node. |
| michael@0 | 85 | */ |
| michael@0 | 86 | static void GeneratePageTree(const SkTDArray<SkPDFPage*>& pages, |
| michael@0 | 87 | SkPDFCatalog* catalog, |
| michael@0 | 88 | SkTDArray<SkPDFDict*>* pageTree, |
| michael@0 | 89 | SkPDFDict** rootNode); |
| michael@0 | 90 | |
| michael@0 | 91 | /** Get the fonts used on this page. |
| michael@0 | 92 | */ |
| michael@0 | 93 | const SkTDArray<SkPDFFont*>& getFontResources() const; |
| michael@0 | 94 | |
| michael@0 | 95 | /** Returns a SkPDFGlyphSetMap which represents glyph usage of every font |
| michael@0 | 96 | * that shows on this page. |
| michael@0 | 97 | */ |
| michael@0 | 98 | const SkPDFGlyphSetMap& getFontGlyphUsage() const; |
| michael@0 | 99 | |
| michael@0 | 100 | private: |
| michael@0 | 101 | // Multiple pages may reference the content. |
| michael@0 | 102 | SkAutoTUnref<SkPDFDevice> fDevice; |
| michael@0 | 103 | |
| michael@0 | 104 | // Once the content is finalized, put it into a stream for output. |
| michael@0 | 105 | SkAutoTUnref<SkPDFStream> fContentStream; |
| michael@0 | 106 | typedef SkPDFDict INHERITED; |
| michael@0 | 107 | }; |
| michael@0 | 108 | |
| michael@0 | 109 | #endif |
