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" |
commit-bot@chromium.org | b5a6651 | 2013-10-09 21:09:00 +0000 | [diff] [blame] | 9 | #include "SkPDFDocument.h" |
commit-bot@chromium.org | 5e00989 | 2013-10-14 13:42:12 +0000 | [diff] [blame^] | 10 | #include "SkPDFDeviceFlattener.h" |
reed@google.com | 99ac02b | 2013-06-07 20:30:16 +0000 | [diff] [blame] | 11 | |
| 12 | class SkDocument_PDF : public SkDocument { |
| 13 | public: |
commit-bot@chromium.org | b5a6651 | 2013-10-09 21:09:00 +0000 | [diff] [blame] | 14 | SkDocument_PDF(SkWStream* stream, void (*doneProc)(SkWStream*), |
| 15 | SkPicture::EncodeBitmap encoder) |
| 16 | : SkDocument(stream, doneProc) |
| 17 | , fEncoder(encoder) { |
reed@google.com | 99ac02b | 2013-06-07 20:30:16 +0000 | [diff] [blame] | 18 | fDoc = SkNEW(SkPDFDocument); |
| 19 | fCanvas = NULL; |
| 20 | fDevice = NULL; |
| 21 | } |
skia.committer@gmail.com | 6319367 | 2013-06-08 07:01:13 +0000 | [diff] [blame] | 22 | |
reed@google.com | 99ac02b | 2013-06-07 20:30:16 +0000 | [diff] [blame] | 23 | virtual ~SkDocument_PDF() { |
| 24 | // subclasses must call close() in their destructors |
| 25 | this->close(); |
| 26 | } |
| 27 | |
| 28 | protected: |
| 29 | virtual SkCanvas* onBeginPage(SkScalar width, SkScalar height, |
commit-bot@chromium.org | 5e00989 | 2013-10-14 13:42:12 +0000 | [diff] [blame^] | 30 | const SkRect& trimBox) SK_OVERRIDE { |
reed@google.com | 99ac02b | 2013-06-07 20:30:16 +0000 | [diff] [blame] | 31 | SkASSERT(NULL == fCanvas); |
| 32 | SkASSERT(NULL == fDevice); |
| 33 | |
commit-bot@chromium.org | 5e00989 | 2013-10-14 13:42:12 +0000 | [diff] [blame^] | 34 | SkSize mediaBoxSize; |
| 35 | mediaBoxSize.set(width, height); |
reed@google.com | 99ac02b | 2013-06-07 20:30:16 +0000 | [diff] [blame] | 36 | |
commit-bot@chromium.org | 5e00989 | 2013-10-14 13:42:12 +0000 | [diff] [blame^] | 37 | fDevice = SkNEW_ARGS(SkPDFDeviceFlattener, (mediaBoxSize, &trimBox)); |
commit-bot@chromium.org | b5a6651 | 2013-10-09 21:09:00 +0000 | [diff] [blame] | 38 | if (fEncoder) { |
| 39 | fDevice->setDCTEncoder(fEncoder); |
| 40 | } |
reed@google.com | 99ac02b | 2013-06-07 20:30:16 +0000 | [diff] [blame] | 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 | |
commit-bot@chromium.org | b5a6651 | 2013-10-09 21:09:00 +0000 | [diff] [blame] | 59 | virtual bool onClose(SkWStream* stream) SK_OVERRIDE { |
reed@google.com | 99ac02b | 2013-06-07 20:30:16 +0000 | [diff] [blame] | 60 | SkASSERT(NULL == fCanvas); |
| 61 | SkASSERT(NULL == fDevice); |
| 62 | |
commit-bot@chromium.org | b5a6651 | 2013-10-09 21:09:00 +0000 | [diff] [blame] | 63 | bool success = fDoc->emitPDF(stream); |
| 64 | SkDELETE(fDoc); |
| 65 | fDoc = NULL; |
| 66 | return success; |
| 67 | } |
| 68 | |
| 69 | virtual void onAbort() SK_OVERRIDE { |
reed@google.com | 99ac02b | 2013-06-07 20:30:16 +0000 | [diff] [blame] | 70 | SkDELETE(fDoc); |
| 71 | fDoc = NULL; |
| 72 | } |
| 73 | |
| 74 | private: |
| 75 | SkPDFDocument* fDoc; |
commit-bot@chromium.org | 5e00989 | 2013-10-14 13:42:12 +0000 | [diff] [blame^] | 76 | SkPDFDeviceFlattener* fDevice; |
reed@google.com | 99ac02b | 2013-06-07 20:30:16 +0000 | [diff] [blame] | 77 | SkCanvas* fCanvas; |
commit-bot@chromium.org | b5a6651 | 2013-10-09 21:09:00 +0000 | [diff] [blame] | 78 | SkPicture::EncodeBitmap fEncoder; |
reed@google.com | 99ac02b | 2013-06-07 20:30:16 +0000 | [diff] [blame] | 79 | }; |
| 80 | |
| 81 | /////////////////////////////////////////////////////////////////////////////// |
| 82 | |
commit-bot@chromium.org | b5a6651 | 2013-10-09 21:09:00 +0000 | [diff] [blame] | 83 | SkDocument* SkDocument::CreatePDF(SkWStream* stream, void (*done)(SkWStream*), |
| 84 | SkPicture::EncodeBitmap enc) { |
| 85 | return stream ? SkNEW_ARGS(SkDocument_PDF, (stream, done, enc)) : NULL; |
reed@google.com | 99ac02b | 2013-06-07 20:30:16 +0000 | [diff] [blame] | 86 | } |
| 87 | |
| 88 | static void delete_wstream(SkWStream* stream) { |
| 89 | SkDELETE(stream); |
| 90 | } |
| 91 | |
commit-bot@chromium.org | b5a6651 | 2013-10-09 21:09:00 +0000 | [diff] [blame] | 92 | SkDocument* SkDocument::CreatePDF(const char path[], SkPicture::EncodeBitmap enc) { |
reed@google.com | 99ac02b | 2013-06-07 20:30:16 +0000 | [diff] [blame] | 93 | SkFILEWStream* stream = SkNEW_ARGS(SkFILEWStream, (path)); |
| 94 | if (!stream->isValid()) { |
| 95 | SkDELETE(stream); |
| 96 | return NULL; |
| 97 | } |
commit-bot@chromium.org | b5a6651 | 2013-10-09 21:09:00 +0000 | [diff] [blame] | 98 | return SkNEW_ARGS(SkDocument_PDF, (stream, delete_wstream, enc)); |
reed@google.com | 99ac02b | 2013-06-07 20:30:16 +0000 | [diff] [blame] | 99 | } |