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/* -*- 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(const IntSize& aSizeInPoints) 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 */
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