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