| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkDocument.h" |
| #include "SkXPSDevice.h" |
| #include "SkStream.h" |
| |
| class SkDocument_XPS : public SkDocument { |
| public: |
| SkDocument_XPS(SkWStream* stream, |
| void (*doneProc)(SkWStream*, bool), |
| SkScalar dpi) |
| : SkDocument(stream, doneProc) { |
| const SkScalar kPointsPerMeter = SkDoubleToScalar(360000.0 / 127.0); |
| fUnitsPerMeter.set(kPointsPerMeter, kPointsPerMeter); |
| SkScalar pixelsPerMeterScale = SkDoubleToScalar(dpi * 5000.0 / 127.0); |
| fPixelsPerMeter.set(pixelsPerMeterScale, pixelsPerMeterScale); |
| fDevice.beginPortfolio(stream); |
| } |
| |
| virtual ~SkDocument_XPS() { |
| // subclasses must call close() in their destructors |
| this->close(); |
| } |
| |
| protected: |
| virtual SkCanvas* onBeginPage(SkScalar width, |
| SkScalar height, |
| const SkRect& trimBox) override { |
| fDevice.beginSheet(fUnitsPerMeter, fPixelsPerMeter, |
| SkSize::Make(width, height)); |
| fCanvas.reset(SkNEW_ARGS(SkCanvas, (&fDevice))); |
| fCanvas->clipRect(trimBox); |
| fCanvas->translate(trimBox.x(), trimBox.y()); |
| return fCanvas.get(); |
| } |
| |
| void onEndPage() override { |
| SkASSERT(fCanvas.get()); |
| fCanvas->flush(); |
| fCanvas.reset(NULL); |
| fDevice.endSheet(); |
| } |
| |
| bool onClose(SkWStream*) override { |
| SkASSERT(!fCanvas.get()); |
| return fDevice.endPortfolio(); |
| } |
| |
| void onAbort() override {} |
| |
| private: |
| SkXPSDevice fDevice; |
| SkAutoTUnref<SkCanvas> fCanvas; |
| SkVector fUnitsPerMeter; |
| SkVector fPixelsPerMeter; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| SkDocument* SkDocument::CreateXPS(SkWStream* stream, SkScalar dpi) { |
| return stream ? SkNEW_ARGS(SkDocument_XPS, (stream, NULL, dpi)) : NULL; |
| } |
| |
| static void delete_wstream(SkWStream* stream, bool aborted) { |
| SkDELETE(stream); |
| } |
| |
| SkDocument* SkDocument::CreateXPS(const char path[], SkScalar dpi) { |
| SkAutoTDelete<SkFILEWStream> stream(SkNEW_ARGS(SkFILEWStream, (path))); |
| if (!stream->isValid()) { |
| return NULL; |
| } |
| return SkNEW_ARGS(SkDocument_XPS, (stream.detach(), delete_wstream, dpi)); |
| } |