reed@google.com | 99ac02b | 2013-06-07 20:30:16 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2013 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 | */ |
| 7 | |
| 8 | #include "SkDocument.h" |
| 9 | #include "SkPDFDocument.h" |
| 10 | #include "SkPDFDevice.h" |
| 11 | |
| 12 | class SkDocument_PDF : public SkDocument { |
| 13 | public: |
| 14 | SkDocument_PDF(SkWStream* stream, void (*doneProc)(SkWStream*)) |
| 15 | : SkDocument(stream, doneProc) { |
| 16 | fDoc = SkNEW(SkPDFDocument); |
| 17 | fCanvas = NULL; |
| 18 | fDevice = NULL; |
| 19 | } |
skia.committer@gmail.com | 6319367 | 2013-06-08 07:01:13 +0000 | [diff] [blame] | 20 | |
reed@google.com | 99ac02b | 2013-06-07 20:30:16 +0000 | [diff] [blame] | 21 | virtual ~SkDocument_PDF() { |
| 22 | // subclasses must call close() in their destructors |
| 23 | this->close(); |
| 24 | } |
| 25 | |
| 26 | protected: |
| 27 | virtual SkCanvas* onBeginPage(SkScalar width, SkScalar height, |
| 28 | const SkRect& content) SK_OVERRIDE { |
| 29 | SkASSERT(NULL == fCanvas); |
| 30 | SkASSERT(NULL == fDevice); |
| 31 | |
| 32 | SkISize pageS, contentS; |
| 33 | SkMatrix matrix; |
| 34 | |
| 35 | pageS.set(SkScalarRoundToInt(width), SkScalarRoundToInt(height)); |
| 36 | contentS.set(SkScalarRoundToInt(content.width()), |
| 37 | SkScalarRoundToInt(content.height())); |
| 38 | matrix.setTranslate(content.fLeft, content.fTop); |
| 39 | |
| 40 | fDevice = SkNEW_ARGS(SkPDFDevice, (pageS, contentS, matrix)); |
| 41 | fCanvas = SkNEW_ARGS(SkCanvas, (fDevice)); |
| 42 | return fCanvas; |
| 43 | } |
| 44 | |
| 45 | virtual void onEndPage() SK_OVERRIDE { |
| 46 | SkASSERT(fCanvas); |
| 47 | SkASSERT(fDevice); |
| 48 | |
| 49 | fCanvas->flush(); |
| 50 | fDoc->appendPage(fDevice); |
| 51 | |
| 52 | fCanvas->unref(); |
| 53 | fDevice->unref(); |
| 54 | |
| 55 | fCanvas = NULL; |
| 56 | fDevice = NULL; |
| 57 | } |
| 58 | |
| 59 | virtual void onClose(SkWStream* stream) SK_OVERRIDE { |
| 60 | SkASSERT(NULL == fCanvas); |
| 61 | SkASSERT(NULL == fDevice); |
| 62 | |
| 63 | fDoc->emitPDF(stream); |
| 64 | SkDELETE(fDoc); |
| 65 | fDoc = NULL; |
| 66 | } |
| 67 | |
| 68 | private: |
| 69 | SkPDFDocument* fDoc; |
| 70 | SkPDFDevice* fDevice; |
| 71 | SkCanvas* fCanvas; |
| 72 | }; |
| 73 | |
| 74 | /////////////////////////////////////////////////////////////////////////////// |
| 75 | |
| 76 | SkDocument* SkDocument::CreatePDF(SkWStream* stream, void (*done)(SkWStream*)) { |
| 77 | return stream ? SkNEW_ARGS(SkDocument_PDF, (stream, done)) : NULL; |
| 78 | } |
| 79 | |
| 80 | static void delete_wstream(SkWStream* stream) { |
| 81 | SkDELETE(stream); |
| 82 | } |
| 83 | |
| 84 | SkDocument* SkDocument::CreatePDF(const char path[]) { |
| 85 | SkFILEWStream* stream = SkNEW_ARGS(SkFILEWStream, (path)); |
| 86 | if (!stream->isValid()) { |
| 87 | SkDELETE(stream); |
| 88 | return NULL; |
| 89 | } |
| 90 | return SkNEW_ARGS(SkDocument_PDF, (stream, delete_wstream)); |
| 91 | } |