gfx/skia/trunk/src/pdf/SkPDFFormXObject.cpp@129ffea94266
gfx/skia/trunk/src/pdf/SkPDFFormXObject.cpp
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 #include "SkPDFFormXObject.h"
12 #include "SkMatrix.h"
13 #include "SkPDFCatalog.h"
14 #include "SkPDFDevice.h"
15 #include "SkPDFResourceDict.h"
16 #include "SkPDFUtils.h"
17 #include "SkStream.h"
18 #include "SkTypes.h"
20 SkPDFFormXObject::SkPDFFormXObject(SkPDFDevice* device) {
21 // We don't want to keep around device because we'd have two copies
22 // of content, so reference or copy everything we need (content and
23 // resources).
24 SkTSet<SkPDFObject*> emptySet;
25 SkPDFResourceDict* resourceDict = device->getResourceDict();
26 resourceDict->getReferencedResources(emptySet, &fResources, false);
28 SkAutoTUnref<SkStream> content(device->content());
29 setData(content.get());
31 SkAutoTUnref<SkPDFArray> bboxArray(device->copyMediaBox());
32 init(NULL, resourceDict, bboxArray);
34 // We invert the initial transform and apply that to the xobject so that
35 // it doesn't get applied twice. We can't just undo it because it's
36 // embedded in things like shaders and images.
37 if (!device->initialTransform().isIdentity()) {
38 SkMatrix inverse;
39 if (!device->initialTransform().invert(&inverse)) {
40 // The initial transform should be invertible.
41 SkASSERT(false);
42 inverse.reset();
43 }
44 insert("Matrix", SkPDFUtils::MatrixToArray(inverse))->unref();
45 }
46 }
48 /**
49 * Creates a FormXObject from a content stream and associated resources.
50 */
51 SkPDFFormXObject::SkPDFFormXObject(SkStream* content, SkRect bbox,
52 SkPDFResourceDict* resourceDict) {
53 SkTSet<SkPDFObject*> emptySet;
54 resourceDict->getReferencedResources(emptySet, &fResources, false);
56 setData(content);
58 SkAutoTUnref<SkPDFArray> bboxArray(SkPDFUtils::RectToArray(bbox));
59 init("DeviceRGB", resourceDict, bboxArray);
60 }
62 /**
63 * Common initialization code.
64 * Note that bbox is unreferenced here, so calling code does not need worry.
65 */
66 void SkPDFFormXObject::init(const char* colorSpace,
67 SkPDFDict* resourceDict, SkPDFArray* bbox) {
68 insertName("Type", "XObject");
69 insertName("Subtype", "Form");
70 insert("Resources", resourceDict);
71 insert("BBox", bbox);
73 // Right now SkPDFFormXObject is only used for saveLayer, which implies
74 // isolated blending. Do this conditionally if that changes.
75 SkAutoTUnref<SkPDFDict> group(new SkPDFDict("Group"));
76 group->insertName("S", "Transparency");
78 if (colorSpace != NULL) {
79 group->insertName("CS", colorSpace);
80 }
81 group->insert("I", new SkPDFBool(true))->unref(); // Isolated.
82 insert("Group", group.get());
83 }
85 SkPDFFormXObject::~SkPDFFormXObject() {
86 fResources.unrefAll();
87 }
89 void SkPDFFormXObject::getResources(
90 const SkTSet<SkPDFObject*>& knownResourceObjects,
91 SkTSet<SkPDFObject*>* newResourceObjects) {
92 GetResourcesHelper(&fResources.toArray(),
93 knownResourceObjects,
94 newResourceObjects);
95 }
