src/pdf/SkPDFImageStream.h - Issue 22889020: Refactor SkPDFImage

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Side by Side Diff: src/pdf/SkPDFImageStream.h

Issue 22889020: Refactor SkPDFImage (Closed) Base URL: https://skia.googlecode.com/svn/trunk

Patch Set: More style fixes Created 7 years, 4 months ago

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1 /*

2 * Copyright 2013 Google Inc.

3 *

4 * Use of this source code is governed by a BSD-style license that can be

5 * found in the LICENSE file.

6 */

7

8 #ifndef SkPDFImageStream_DEFINED

9 #define SkPDFImageStream_DEFINED

10

11 #include "SkBitmap.h"

12 #include "SkPDFDevice.h"

13 #include "SkPDFStream.h"

14 #include "SkPDFTypes.h"

15 #include "SkRect.h"

16 #include "SkRefCnt.h"

17 #include "SkStream.h"

18 #include "SkTemplates.h"

19

20 class SkPDFCatalog;

21

22 /** \class SkPDFImageStream

23

24 An image stream object in a PDF. Note, all streams must be indirect objects

25 (via SkObjRef).

26 This class is similar to SkPDFStream, but it is also able to use image

27 specific compression. Currently we support DCT(jpeg) and flate(zip).

28 */

29 class SkPDFImageStream : public SkPDFStream {

30 public:

31 /** Create a PDF stream with the same content and dictionary entries

32 * as the passed one.

33 */

34 explicit SkPDFImageStream(const SkPDFImageStream& pdfStream);

35 virtual ~SkPDFImageStream();

36

37 protected:

38 SkPDFImageStream(SkStream* stream, const SkBitmap& bitmap,

39 const SkIRect& srcRect, EncodeToDCTStream encoder);

40

41 // Populate the stream dictionary. This method returns false if

42 // fSubstitute should be used.

43 virtual bool populate(SkPDFCatalog* catalog);

44

45 private:

46 const SkBitmap fBitmap;

47 const SkIRect fSrcRect;

48 EncodeToDCTStream fEncoder;

49

50 typedef SkPDFStream INHERITED;

51 };

52

53 #endif

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