зеркало из https://github.com/mozilla/gecko-dev.git
71 строка
2.3 KiB
C++
71 строка
2.3 KiB
C++
/* -*- 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 */
|