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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 SkPDFImage_DEFINED | 10 #ifndef SkPDFImage_DEFINED |
11 #define SkPDFImage_DEFINED | 11 #define SkPDFImage_DEFINED |
12 | 12 |
| 13 #include "SkPicture.h" |
13 #include "SkPDFDevice.h" | 14 #include "SkPDFDevice.h" |
14 #include "SkPDFStream.h" | 15 #include "SkPDFStream.h" |
15 #include "SkPDFTypes.h" | 16 #include "SkPDFTypes.h" |
16 #include "SkRefCnt.h" | 17 #include "SkRefCnt.h" |
17 | 18 |
18 class SkBitmap; | 19 class SkBitmap; |
19 class SkPDFCatalog; | 20 class SkPDFCatalog; |
20 struct SkIRect; | 21 struct SkIRect; |
21 | 22 |
22 /** \class SkPDFImage | 23 /** \class SkPDFImage |
23 | 24 |
24 An image XObject. | 25 An image XObject. |
25 */ | 26 */ |
26 | 27 |
27 // We could play the same trick here as is done in SkPDFGraphicState, storing | 28 // We could play the same trick here as is done in SkPDFGraphicState, storing |
28 // a copy of the Bitmap object (not the pixels), the pixel generation number, | 29 // a copy of the Bitmap object (not the pixels), the pixel generation number, |
29 // and settings used from the paint to canonicalize image objects. | 30 // and settings used from the paint to canonicalize image objects. |
30 class SkPDFImage : public SkPDFStream { | 31 class SkPDFImage : public SkPDFStream { |
31 public: | 32 public: |
32 /** Create a new Image XObject to represent the passed bitmap. | 33 /** Create a new Image XObject to represent the passed bitmap. |
33 * @param bitmap The image to encode. | 34 * @param bitmap The image to encode. |
34 * @param srcRect The rectangle to cut out of bitmap. | 35 * @param srcRect The rectangle to cut out of bitmap. |
35 * @param paint Used to calculate alpha, masks, etc. | 36 * @param paint Used to calculate alpha, masks, etc. |
36 * @return The image XObject or NUll if there is nothing to draw for | 37 * @return The image XObject or NUll if there is nothing to draw for |
37 * the given parameters. | 38 * the given parameters. |
38 */ | 39 */ |
39 static SkPDFImage* CreateImage(const SkBitmap& bitmap, | 40 static SkPDFImage* CreateImage(const SkBitmap& bitmap, |
40 const SkIRect& srcRect, | 41 const SkIRect& srcRect, |
41 EncodeToDCTStream encoder); | 42 SkPicture::EncodeBitmap encoder); |
42 | 43 |
43 virtual ~SkPDFImage(); | 44 virtual ~SkPDFImage(); |
44 | 45 |
45 /** Add a Soft Mask (alpha or shape channel) to the image. Refs mask. | 46 /** Add a Soft Mask (alpha or shape channel) to the image. Refs mask. |
46 * @param mask A gray scale image representing the mask. | 47 * @param mask A gray scale image representing the mask. |
47 * @return The mask argument is returned. | 48 * @return The mask argument is returned. |
48 */ | 49 */ |
49 SkPDFImage* addSMask(SkPDFImage* mask); | 50 SkPDFImage* addSMask(SkPDFImage* mask); |
50 | 51 |
51 bool isEmpty() { | 52 bool isEmpty() { |
52 return fSrcRect.isEmpty(); | 53 return fSrcRect.isEmpty(); |
53 } | 54 } |
54 | 55 |
55 // The SkPDFObject interface. | 56 // The SkPDFObject interface. |
56 virtual void getResources(const SkTSet<SkPDFObject*>& knownResourceObjects, | 57 virtual void getResources(const SkTSet<SkPDFObject*>& knownResourceObjects, |
57 SkTSet<SkPDFObject*>* newResourceObjects); | 58 SkTSet<SkPDFObject*>* newResourceObjects); |
58 | 59 |
59 private: | 60 private: |
60 SkBitmap fBitmap; | 61 SkBitmap fBitmap; |
61 bool fIsAlpha; | 62 bool fIsAlpha; |
62 SkIRect fSrcRect; | 63 SkIRect fSrcRect; |
63 EncodeToDCTStream fEncoder; | 64 SkPicture::EncodeBitmap fEncoder; |
64 bool fStreamValid; | 65 bool fStreamValid; |
65 | 66 |
66 SkTDArray<SkPDFObject*> fResources; | 67 SkTDArray<SkPDFObject*> fResources; |
67 | 68 |
68 /** Create a PDF image XObject. Entries for the image properties are | 69 /** Create a PDF image XObject. Entries for the image properties are |
69 * automatically added to the stream dictionary. | 70 * automatically added to the stream dictionary. |
70 * @param stream The image stream. May be NULL. Otherwise, this | 71 * @param stream The image stream. May be NULL. Otherwise, this |
71 * (instead of the input bitmap) will be used as the | 72 * (instead of the input bitmap) will be used as the |
72 * PDF's content stream, possibly with lossless encoding. | 73 * PDF's content stream, possibly with lossless encoding. |
73 * @param bitmap The image. If a stream is not given, its color data | 74 * @param bitmap The image. If a stream is not given, its color data |
74 * will be used as the image. If a stream is given, this | 75 * will be used as the image. If a stream is given, this |
75 * is used for configuration only. | 76 * is used for configuration only. |
76 * @param isAlpha Whether or not this is the alpha of an image. | 77 * @param isAlpha Whether or not this is the alpha of an image. |
77 * @param srcRect The clipping applied to bitmap before generating | 78 * @param srcRect The clipping applied to bitmap before generating |
78 * imageData. | 79 * imageData. |
79 * @param encoder A function used to encode the bitmap for compression. | 80 * @param encoder A function used to encode the bitmap for compression. |
80 * May be NULL. | 81 * May be NULL. |
81 */ | 82 */ |
82 SkPDFImage(SkStream* stream, const SkBitmap& bitmap, bool isAlpha, | 83 SkPDFImage(SkStream* stream, const SkBitmap& bitmap, bool isAlpha, |
83 const SkIRect& srcRect, EncodeToDCTStream encoder); | 84 const SkIRect& srcRect, SkPicture::EncodeBitmap encoder); |
84 | 85 |
85 /** Copy constructor, used to generate substitutes. | 86 /** Copy constructor, used to generate substitutes. |
86 * @param image The SkPDFImage to copy. | 87 * @param image The SkPDFImage to copy. |
87 */ | 88 */ |
88 SkPDFImage(SkPDFImage& pdfImage); | 89 SkPDFImage(SkPDFImage& pdfImage); |
89 | 90 |
90 // Populate the stream dictionary. This method returns false if | 91 // Populate the stream dictionary. This method returns false if |
91 // fSubstitute should be used. | 92 // fSubstitute should be used. |
92 virtual bool populate(SkPDFCatalog* catalog); | 93 virtual bool populate(SkPDFCatalog* catalog); |
93 | 94 |
94 typedef SkPDFStream INHERITED; | 95 typedef SkPDFStream INHERITED; |
95 }; | 96 }; |
96 | 97 |
97 #endif | 98 #endif |
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