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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkDocument.h" | 8 #include "SkDocument.h" |
9 #include "SkStream.h" | 9 #include "SkStream.h" |
10 | 10 |
11 SK_DEFINE_INST_COUNT(SkDocument) | 11 SK_DEFINE_INST_COUNT(SkDocument) |
12 | 12 |
13 SkDocument::SkDocument(SkWStream* stream, void (*doneProc)(SkWStream*)) { | 13 SkDocument::SkDocument(SkWStream* stream, void (*doneProc)(SkWStream*)) { |
14 fStream = stream; // we do not own this object. | 14 fStream = stream; // we do not own this object. |
15 fDoneProc = doneProc; | 15 fDoneProc = doneProc; |
16 fState = kBetweenPages_State; | 16 fState = kBetweenPages_State; |
17 } | 17 } |
18 | 18 |
19 SkDocument::~SkDocument() { | 19 SkDocument::~SkDocument() { |
20 this->close(); | 20 this->close(); |
21 } | 21 } |
22 | 22 |
23 SkCanvas* SkDocument::beginPage(SkScalar width, SkScalar height, | 23 SkCanvas* SkDocument::beginPage(const SkSize& trimSize, const SkRect* mediaBox)
{ |
24 const SkRect* content) { | 24 if (trimSize.width() <= 0 || trimSize.height() <= 0) { |
25 if (width <= 0 || height <= 0) { | |
26 return NULL; | 25 return NULL; |
27 } | 26 } |
28 | 27 |
29 SkRect outer = SkRect::MakeWH(width, height); | 28 if (mediaBox) { |
30 SkRect inner; | 29 SkRect inner = SkRect::MakeSize(trimSize); |
31 if (content) { | 30 if (!mediaBox->contains(inner)) { |
32 inner = *content; | |
33 if (!inner.intersect(outer)) { | |
34 return NULL; | 31 return NULL; |
35 } | 32 } |
36 } else { | |
37 inner = outer; | |
38 } | 33 } |
39 | 34 |
40 for (;;) { | 35 for (;;) { |
41 switch (fState) { | 36 switch (fState) { |
42 case kBetweenPages_State: | 37 case kBetweenPages_State: |
43 fState = kInPage_State; | 38 fState = kInPage_State; |
44 return this->onBeginPage(width, height, inner); | 39 return this->onBeginPage(trimSize, mediaBox); |
45 case kInPage_State: | 40 case kInPage_State: |
46 this->endPage(); | 41 this->endPage(); |
47 break; | 42 break; |
48 case kClosed_State: | 43 case kClosed_State: |
49 return NULL; | 44 return NULL; |
50 } | 45 } |
51 } | 46 } |
52 SkDEBUGFAIL("never get here"); | 47 SkDEBUGFAIL("never get here"); |
53 return NULL; | 48 return NULL; |
54 } | 49 } |
55 | 50 |
56 void SkDocument::endPage() { | 51 void SkDocument::endPage() { |
57 if (kInPage_State == fState) { | 52 if (kInPage_State == fState) { |
58 fState = kBetweenPages_State; | 53 fState = kBetweenPages_State; |
59 this->onEndPage(); | 54 this->onEndPage(); |
60 } | 55 } |
61 } | 56 } |
62 | 57 |
63 void SkDocument::close() { | 58 bool SkDocument::close() { |
64 for (;;) { | 59 for (;;) { |
65 switch (fState) { | 60 switch (fState) { |
66 case kBetweenPages_State: | 61 case kBetweenPages_State: { |
67 fState = kClosed_State; | 62 fState = kClosed_State; |
68 this->onClose(fStream); | 63 bool success = this->onClose(fStream); |
69 | 64 |
70 if (fDoneProc) { | 65 if (fDoneProc) { |
71 fDoneProc(fStream); | 66 fDoneProc(fStream); |
72 } | 67 } |
73 // we don't own the stream, but we mark it NULL since we can | 68 // we don't own the stream, but we mark it NULL since we can |
74 // no longer write to it. | 69 // no longer write to it. |
75 fStream = NULL; | 70 fStream = NULL; |
76 return; | 71 return success; |
| 72 } |
77 case kInPage_State: | 73 case kInPage_State: |
78 this->endPage(); | 74 this->endPage(); |
79 break; | 75 break; |
80 case kClosed_State: | 76 case kClosed_State: |
81 return; | 77 return false; |
82 } | 78 } |
83 } | 79 } |
84 } | 80 } |
| 81 |
| 82 void SkDocument::abort() { |
| 83 fState = kClosed_State; |
| 84 } |
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