/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #ifndef MOZILLA_GFX_PRINTTARGETSKPDF_H #define MOZILLA_GFX_PRINTTARGETSKPDF_H #include "mozilla/UniquePtr.h" #include "nsCOMPtr.h" #include "PrintTarget.h" #include "skia/include/core/SkCanvas.h" #include "skia/include/docs/SkPDFDocument.h" #include "skia/include/core/SkStream.h" namespace mozilla { namespace gfx { /** * Skia PDF printing target. */ class PrintTargetSkPDF final : public PrintTarget { public: // The returned PrintTargetSkPDF keeps a raw pointer to the passed SkWStream // but does not own it. Callers are responsible for ensuring that passed // stream outlives the returned PrintTarget. static already_AddRefed<PrintTargetSkPDF> CreateOrNull( UniquePtr<SkWStream> aStream, const IntSize& aSizeInPoints); nsresult BeginPrinting(const nsAString& aTitle, const nsAString& aPrintToFileName, int32_t aStartPage, int32_t aEndPage) override; nsresult EndPrinting() override; void Finish() override; nsresult BeginPage() override; nsresult EndPage() override; already_AddRefed<DrawTarget> MakeDrawTarget( const IntSize& aSize, DrawEventRecorder* aRecorder = nullptr) final; already_AddRefed<DrawTarget> GetReferenceDrawTarget() final; private: PrintTargetSkPDF(const IntSize& aSize, UniquePtr<SkWStream> aStream); virtual ~PrintTargetSkPDF(); // Do not hand out references to this object. It holds a non-owning // reference to mOStreame, so must not outlive mOStream. sk_sp<SkDocument> mPDFDoc; // The stream that the SkDocument outputs to. UniquePtr<SkWStream> mOStream; // The current page's SkCanvas and its wrapping DrawTarget: // Canvas is owned by mPDFDoc, which handles its deletion. SkCanvas* mPageCanvas; RefPtr<DrawTarget> mPageDT; // Members needed to provide a reference DrawTarget: sk_sp<SkDocument> mRefPDFDoc; // Canvas owned by mRefPDFDoc, which handles its deletion. SkCanvas* mRefCanvas; SkDynamicMemoryWStream mRefOStream; }; } // namespace gfx } // namespace mozilla #endif /* MOZILLA_GFX_PRINTTARGETSKPDF_H */