epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
vandebo@chromium.org | 8459d4e | 2010-09-24 22:25:30 +0000 | [diff] [blame] | 2 | /* |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 3 | * Copyright 2010 Google Inc. |
vandebo@chromium.org | 8459d4e | 2010-09-24 22:25:30 +0000 | [diff] [blame] | 4 | * |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
vandebo@chromium.org | 8459d4e | 2010-09-24 22:25:30 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 9 | |
vandebo@chromium.org | 8459d4e | 2010-09-24 22:25:30 +0000 | [diff] [blame] | 10 | #ifndef SkPDFStream_DEFINED |
| 11 | #define SkPDFStream_DEFINED |
| 12 | |
| 13 | #include "SkPDFTypes.h" |
| 14 | #include "SkRefCnt.h" |
vandebo@chromium.org | a09ef97 | 2010-12-01 22:17:20 +0000 | [diff] [blame] | 15 | #include "SkStream.h" |
vandebo@chromium.org | 8459d4e | 2010-09-24 22:25:30 +0000 | [diff] [blame] | 16 | #include "SkTemplates.h" |
| 17 | |
vandebo@chromium.org | 8459d4e | 2010-09-24 22:25:30 +0000 | [diff] [blame] | 18 | class SkPDFCatalog; |
| 19 | |
| 20 | /** \class SkPDFStream |
| 21 | |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 22 | A stream object in a PDF. Note, all streams must be indirect objects (via |
| 23 | SkObjRef). |
vandebo@chromium.org | 8459d4e | 2010-09-24 22:25:30 +0000 | [diff] [blame] | 24 | */ |
vandebo@chromium.org | d90c141 | 2011-02-24 21:50:04 +0000 | [diff] [blame] | 25 | class SkPDFStream : public SkPDFDict { |
commit-bot@chromium.org | ab1c138 | 2013-12-05 12:08:12 +0000 | [diff] [blame] | 26 | SK_DECLARE_INST_COUNT(SkPDFStream) |
vandebo@chromium.org | 8459d4e | 2010-09-24 22:25:30 +0000 | [diff] [blame] | 27 | public: |
| 28 | /** Create a PDF stream. A Length entry is automatically added to the |
halcanary | e322482 | 2014-07-14 09:12:12 -0700 | [diff] [blame] | 29 | * stream dictionary. |
| 30 | * @param data The data part of the stream. Will be ref()ed. |
vandebo@chromium.org | 8459d4e | 2010-09-24 22:25:30 +0000 | [diff] [blame] | 31 | */ |
vandebo@chromium.org | 421d644 | 2011-07-20 17:39:01 +0000 | [diff] [blame] | 32 | explicit SkPDFStream(SkData* data); |
halcanary | e322482 | 2014-07-14 09:12:12 -0700 | [diff] [blame] | 33 | |
| 34 | /** Create a PDF stream. A Length entry is automatically added to the |
| 35 | * stream dictionary. |
| 36 | * @param stream The data part of the stream. Will be duplicate()d. |
| 37 | */ |
vandebo@chromium.org | 8459d4e | 2010-09-24 22:25:30 +0000 | [diff] [blame] | 38 | explicit SkPDFStream(SkStream* stream); |
halcanary | 1f8ed02 | 2014-06-27 10:37:27 -0700 | [diff] [blame] | 39 | |
vandebo@chromium.org | 8459d4e | 2010-09-24 22:25:30 +0000 | [diff] [blame] | 40 | virtual ~SkPDFStream(); |
| 41 | |
halcanary | f361b71 | 2015-01-13 07:12:57 -0800 | [diff] [blame] | 42 | // The SkPDFObject interface. This two method uses a mutex to |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 43 | // allow multiple threads to call at the same time. |
halcanary | 4fc48af | 2015-01-12 10:07:50 -0800 | [diff] [blame] | 44 | virtual void emitObject(SkWStream* stream, SkPDFCatalog* catalog) SK_OVERRIDE; |
vandebo@chromium.org | 8459d4e | 2010-09-24 22:25:30 +0000 | [diff] [blame] | 45 | |
vandebo@chromium.org | 421d644 | 2011-07-20 17:39:01 +0000 | [diff] [blame] | 46 | protected: |
vandebo@chromium.org | 421d644 | 2011-07-20 17:39:01 +0000 | [diff] [blame] | 47 | enum State { |
| 48 | kUnused_State, //!< The stream hasn't been requested yet. |
| 49 | kNoCompression_State, //!< The stream's been requested in an |
| 50 | // uncompressed form. |
| 51 | kCompressed_State, //!< The stream's already been compressed. |
| 52 | }; |
edisonn@google.com | d9dfa18 | 2013-04-24 13:01:01 +0000 | [diff] [blame] | 53 | |
halcanary | 1f8ed02 | 2014-06-27 10:37:27 -0700 | [diff] [blame] | 54 | /** Create a PDF stream with the same content and dictionary entries |
| 55 | * as the passed one. |
| 56 | */ |
| 57 | explicit SkPDFStream(const SkPDFStream& pdfStream); |
| 58 | |
edisonn@google.com | d9dfa18 | 2013-04-24 13:01:01 +0000 | [diff] [blame] | 59 | /* Create a PDF stream with no data. The setData method must be called to |
| 60 | * set the data. |
| 61 | */ |
| 62 | SkPDFStream(); |
| 63 | |
| 64 | // Populate the stream dictionary. This method returns false if |
| 65 | // fSubstitute should be used. |
| 66 | virtual bool populate(SkPDFCatalog* catalog); |
| 67 | |
| 68 | void setSubstitute(SkPDFStream* stream) { |
| 69 | fSubstitute.reset(stream); |
| 70 | } |
| 71 | |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 72 | SkPDFStream* getSubstitute() const { |
edisonn@google.com | d9dfa18 | 2013-04-24 13:01:01 +0000 | [diff] [blame] | 73 | return fSubstitute.get(); |
| 74 | } |
| 75 | |
commit-bot@chromium.org | d8d976e | 2013-07-08 23:17:57 +0000 | [diff] [blame] | 76 | void setData(SkData* data); |
edisonn@google.com | d9dfa18 | 2013-04-24 13:01:01 +0000 | [diff] [blame] | 77 | void setData(SkStream* stream); |
| 78 | |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 79 | size_t dataSize() const; |
| 80 | |
edisonn@google.com | d9dfa18 | 2013-04-24 13:01:01 +0000 | [diff] [blame] | 81 | void setState(State state) { |
| 82 | fState = state; |
| 83 | } |
| 84 | |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 85 | State getState() const { |
edisonn@google.com | d9dfa18 | 2013-04-24 13:01:01 +0000 | [diff] [blame] | 86 | return fState; |
| 87 | } |
| 88 | |
| 89 | private: |
vandebo@chromium.org | 421d644 | 2011-07-20 17:39:01 +0000 | [diff] [blame] | 90 | // Indicates what form (or if) the stream has been requested. |
| 91 | State fState; |
skia.committer@gmail.com | 83f0d30 | 2013-04-25 07:01:04 +0000 | [diff] [blame] | 92 | |
halcanary | e322482 | 2014-07-14 09:12:12 -0700 | [diff] [blame] | 93 | // Mutex guards fState, fDataStream, and fSubstitute in public interface. |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 94 | SkMutex fMutex; |
| 95 | |
scroggo | a1193e4 | 2015-01-21 12:09:53 -0800 | [diff] [blame] | 96 | SkAutoTDelete<SkStreamRewindable> fDataStream; |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 97 | SkAutoTUnref<SkPDFStream> fSubstitute; |
vandebo@chromium.org | d90c141 | 2011-02-24 21:50:04 +0000 | [diff] [blame] | 98 | |
| 99 | typedef SkPDFDict INHERITED; |
vandebo@chromium.org | 8459d4e | 2010-09-24 22:25:30 +0000 | [diff] [blame] | 100 | }; |
| 101 | |
| 102 | #endif |