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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef PRINTING_PDF_METAFILE_CG_MAC_H_
#define PRINTING_PDF_METAFILE_CG_MAC_H_
#include <CoreFoundation/CoreFoundation.h>
#include <CoreGraphics/CoreGraphics.h>
#include <stdint.h>
#include "base/apple/scoped_cftyperef.h"
#include "base/component_export.h"
#include "printing/metafile.h"
namespace printing {
// This class creates a graphics context that renders into a PDF data stream.
class COMPONENT_EXPORT(PRINTING_METAFILE) PdfMetafileCg : public Metafile {
public:
PdfMetafileCg();
PdfMetafileCg(const PdfMetafileCg&) = delete;
PdfMetafileCg& operator=(const PdfMetafileCg&) = delete;
~PdfMetafileCg() override;
// Metafile methods.
bool Init() override;
bool InitFromData(base::span<const uint8_t> data) override;
void StartPage(const gfx::Size& page_size,
const gfx::Rect& content_area,
float scale_factor,
mojom::PageOrientation page_orientation) override;
bool FinishPage() override;
bool FinishDocument() override;
uint32_t GetDataSize() const override;
bool GetData(void* dst_buffer, uint32_t dst_buffer_size) const override;
bool ShouldCopySharedMemoryRegionData() const override;
mojom::MetafileDataType GetDataType() const override;
gfx::Rect GetPageBounds(unsigned int page_number) const override;
unsigned int GetPageCount() const override;
// Note: The returned context *must not be retained* past Close(). If it is,
// the data returned from GetData will not be valid PDF data.
CGContextRef context() const override;
bool RenderPage(unsigned int page_number,
printing::NativeDrawingContext context,
const CGRect& rect,
bool autorotate,
bool fit_to_page) const override;
private:
// Returns a CGPDFDocumentRef version of `pdf_data_`.
CGPDFDocumentRef GetPDFDocument() const;
// Context for rendering to the pdf.
base::apple::ScopedCFTypeRef<CGContextRef> context_;
// PDF backing store.
base::apple::ScopedCFTypeRef<CFMutableDataRef> pdf_data_;
// Lazily-created CGPDFDocument representation of `pdf_data_`.
mutable base::apple::ScopedCFTypeRef<CGPDFDocumentRef> pdf_doc_;
// Whether or not a page is currently open.
bool page_is_open_ = false;
};
} // namespace printing
#endif // PRINTING_PDF_METAFILE_CG_MAC_H_
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