gfx/skia/trunk/src/pdf/SkPDFImage.h@129ffea94266
gfx/skia/trunk/src/pdf/SkPDFImage.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.
2 /*
3 * Copyright 2010 The Android Open Source Project
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
10 #ifndef SkPDFImage_DEFINED
11 #define SkPDFImage_DEFINED
13 #include "SkPicture.h"
14 #include "SkPDFDevice.h"
15 #include "SkPDFStream.h"
16 #include "SkPDFTypes.h"
17 #include "SkRefCnt.h"
19 class SkBitmap;
20 class SkPDFCatalog;
21 struct SkIRect;
23 /** \class SkPDFImage
25 An image XObject.
26 */
28 // We could play the same trick here as is done in SkPDFGraphicState, storing
29 // a copy of the Bitmap object (not the pixels), the pixel generation number,
30 // and settings used from the paint to canonicalize image objects.
31 class SkPDFImage : public SkPDFStream {
32 public:
33 /** Create a new Image XObject to represent the passed bitmap.
34 * @param bitmap The image to encode.
35 * @param srcRect The rectangle to cut out of bitmap.
36 * @param paint Used to calculate alpha, masks, etc.
37 * @return The image XObject or NUll if there is nothing to draw for
38 * the given parameters.
39 */
40 static SkPDFImage* CreateImage(const SkBitmap& bitmap,
41 const SkIRect& srcRect,
42 SkPicture::EncodeBitmap encoder);
44 virtual ~SkPDFImage();
46 /** Add a Soft Mask (alpha or shape channel) to the image. Refs mask.
47 * @param mask A gray scale image representing the mask.
48 * @return The mask argument is returned.
49 */
50 SkPDFImage* addSMask(SkPDFImage* mask);
52 bool isEmpty() {
53 return fSrcRect.isEmpty();
54 }
56 // The SkPDFObject interface.
57 virtual void getResources(const SkTSet<SkPDFObject*>& knownResourceObjects,
58 SkTSet<SkPDFObject*>* newResourceObjects);
60 private:
61 SkBitmap fBitmap;
62 bool fIsAlpha;
63 SkIRect fSrcRect;
64 SkPicture::EncodeBitmap fEncoder;
65 bool fStreamValid;
67 SkTDArray<SkPDFObject*> fResources;
69 /** Create a PDF image XObject. Entries for the image properties are
70 * automatically added to the stream dictionary.
71 * @param stream The image stream. May be NULL. Otherwise, this
72 * (instead of the input bitmap) will be used as the
73 * PDF's content stream, possibly with lossless encoding.
74 * @param bitmap The image. If a stream is not given, its color data
75 * will be used as the image. If a stream is given, this
76 * is used for configuration only.
77 * @param isAlpha Whether or not this is the alpha of an image.
78 * @param srcRect The clipping applied to bitmap before generating
79 * imageData.
80 * @param encoder A function used to encode the bitmap for compression.
81 * May be NULL.
82 */
83 SkPDFImage(SkStream* stream, const SkBitmap& bitmap, bool isAlpha,
84 const SkIRect& srcRect, SkPicture::EncodeBitmap encoder);
86 /** Copy constructor, used to generate substitutes.
87 * @param image The SkPDFImage to copy.
88 */
89 SkPDFImage(SkPDFImage& pdfImage);
91 // Populate the stream dictionary. This method returns false if
92 // fSubstitute should be used.
93 virtual bool populate(SkPDFCatalog* catalog);
95 typedef SkPDFStream INHERITED;
96 };
98 #endif
