gfx/skia/trunk/include/utils/SkPictureUtils.h@129ffea94266
gfx/skia/trunk/include/utils/SkPictureUtils.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.
1 /*
2 * Copyright 2012 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 */
8 #ifndef SkPictureUtils_DEFINED
9 #define SkPictureUtils_DEFINED
11 #include "SkPicture.h"
12 #include "SkTDArray.h"
14 class SkData;
15 struct SkRect;
17 class SK_API SkPictureUtils {
18 public:
19 /**
20 * Given a rectangular visible "window" into the picture, return an array
21 * of SkPixelRefs that might intersect that area. To keep the call fast,
22 * the returned list is not guaranteed to be exact, so it may miss some,
23 * and it may return false positives.
24 *
25 * The pixelrefs returned in the SkData are already owned by the picture,
26 * so the returned pointers are only valid while the picture is in scope
27 * and remains unchanged.
28 */
29 static SkData* GatherPixelRefs(SkPicture* pict, const SkRect& area);
31 /**
32 * SkPixelRefContainer provides a base class for more elaborate pixel ref
33 * query structures (e.g., rtrees, quad-trees, etc.)
34 */
35 class SkPixelRefContainer : public SkRefCnt {
36 public:
37 virtual void add(SkPixelRef* pr, const SkRect& rect) = 0;
39 // The returned array may contain duplicates
40 virtual void query(const SkRect& queryRect, SkTDArray<SkPixelRef*> *result) = 0;
42 private:
43 typedef SkRefCnt INHERITED;
44 };
46 // Simple query structure that just stores a linked list of pixel refs
47 // and rects.
48 class SkPixelRefsAndRectsList : public SkPixelRefContainer {
49 public:
50 virtual void add(SkPixelRef* pr, const SkRect& rect) SK_OVERRIDE {
51 PixelRefAndRect *dst = fArray.append();
53 dst->fPixelRef = pr;
54 dst->fRect = rect;
55 }
57 virtual void query(const SkRect& queryRect, SkTDArray<SkPixelRef*> *result) SK_OVERRIDE {
58 for (int i = 0; i < fArray.count(); ++i) {
59 if (SkRect::Intersects(fArray[i].fRect, queryRect)) {
60 *result->append() = fArray[i].fPixelRef;
61 }
62 }
63 }
65 private:
66 struct PixelRefAndRect {
67 SkPixelRef* fPixelRef;
68 SkRect fRect;
69 };
71 SkTDArray<PixelRefAndRect> fArray;
73 typedef SkPixelRefContainer INHERITED;
74 };
76 /**
77 * Fill the provided pixel ref container with the picture's pixel ref
78 * and rect information.
79 */
80 static void GatherPixelRefsAndRects(SkPicture* pict, SkPixelRefContainer* prCont);
81 };
83 #endif
