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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(SkScalar width, SkScalar height, |
24 const SkRect* content) { | 24 const SkRect* content) { |
25 if (width <= 0 || height <= 0) { | 25 if (width <= 0 || height <= 0) { |
vandebo (ex-Chrome)
2013/10/08 23:37:06
nit: extra spaces
| |
26 return NULL; | 26 return NULL; |
27 } | 27 } |
28 | 28 |
29 SkRect outer = SkRect::MakeWH(width, height); | 29 SkRect outer = SkRect::MakeWH(width, height); |
30 SkRect inner; | 30 SkRect inner; |
31 if (content) { | 31 if (content) { |
32 inner = *content; | 32 inner = *content; |
33 if (!inner.intersect(outer)) { | 33 if (!inner.intersect(outer)) { |
34 return NULL; | 34 return NULL; |
35 } | 35 } |
36 } else { | 36 } else { |
37 inner = outer; | 37 inner = outer; |
38 } | 38 } |
39 | 39 |
40 for (;;) { | 40 for (;;) { |
41 switch (fState) { | 41 switch (fState) { |
42 case kBetweenPages_State: | 42 case kBetweenPages_State: |
43 fState = kInPage_State; | 43 fState = kInPage_State; |
44 return this->onBeginPage(width, height, inner); | 44 return this->onBeginPage(width, height, inner); |
45 case kInPage_State: | 45 case kInPage_State: |
46 this->endPage(); | 46 this->endPage(); |
47 break; | 47 break; |
48 case kClosed_State: | 48 case kClosed_State: |
49 return NULL; | 49 return NULL; |
50 } | 50 } |
51 } | 51 } |
52 SkDEBUGFAIL("never get here"); | 52 SkDEBUGFAIL("never get here"); |
53 return NULL; | 53 return NULL; |
54 } | 54 } |
55 | 55 |
56 void SkDocument::endPage() { | 56 void SkDocument::endPage() { |
57 if (kInPage_State == fState) { | 57 if (kInPage_State == fState) { |
58 fState = kBetweenPages_State; | 58 fState = kBetweenPages_State; |
59 this->onEndPage(); | 59 this->onEndPage(); |
60 } | 60 } |
61 } | 61 } |
62 | 62 |
63 void SkDocument::close() { | 63 bool SkDocument::close() { |
64 for (;;) { | 64 for (;;) { |
65 switch (fState) { | 65 switch (fState) { |
66 case kBetweenPages_State: | 66 case kBetweenPages_State: { |
67 fState = kClosed_State; | 67 fState = kClosed_State; |
68 this->onClose(fStream); | 68 bool success = this->onClose(fStream); |
69 | 69 |
70 if (fDoneProc) { | 70 if (fDoneProc) { |
71 fDoneProc(fStream); | 71 fDoneProc(fStream); |
72 } | 72 } |
73 // we don't own the stream, but we mark it NULL since we can | 73 // we don't own the stream, but we mark it NULL since we can |
74 // no longer write to it. | 74 // no longer write to it. |
75 fStream = NULL; | 75 fStream = NULL; |
76 return; | 76 return success; |
77 } | |
77 case kInPage_State: | 78 case kInPage_State: |
78 this->endPage(); | 79 this->endPage(); |
79 break; | 80 break; |
80 case kClosed_State: | 81 case kClosed_State: |
81 return; | 82 return false; |
82 } | 83 } |
83 } | 84 } |
84 } | 85 } |
86 | |
87 void SkDocument::abort() { | |
88 fState = kClosed_State; | |
89 } | |
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