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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// 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 <ApplicationServices/ApplicationServices.h>
#include <CoreFoundation/CoreFoundation.h>
#include "base/basictypes.h"
#include "base/gtest_prod_util.h"
#include "base/mac/scoped_cftyperef.h"
#include "base/threading/thread_checker.h"
#include "printing/metafile.h"
namespace base {
class FilePath;
}
namespace gfx {
class Rect;
class Size;
}
namespace printing {
// This class creates a graphics context that renders into a PDF data stream.
class PRINTING_EXPORT PdfMetafileCg : public Metafile {
public:
PdfMetafileCg();
~PdfMetafileCg() override;
// Metafile methods.
bool Init() override;
bool InitFromData(const void* src_buffer, uint32 src_buffer_size) override;
// Not implemented on mac.
bool StartPage(const gfx::Size& page_size,
const gfx::Rect& content_area,
const float& scale_factor) override;
bool FinishPage() override;
bool FinishDocument() override;
uint32 GetDataSize() const override;
bool GetData(void* dst_buffer, uint32 dst_buffer_size) 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,
gfx::NativeDrawingContext context,
const CGRect rect,
const MacRenderPageParams& params) const override;
private:
// Returns a CGPDFDocumentRef version of pdf_data_.
CGPDFDocumentRef GetPDFDocument() const;
base::ThreadChecker thread_checker_;
// Context for rendering to the pdf.
base::ScopedCFTypeRef<CGContextRef> context_;
// PDF backing store.
base::ScopedCFTypeRef<CFMutableDataRef> pdf_data_;
// Lazily-created CGPDFDocument representation of pdf_data_.
mutable base::ScopedCFTypeRef<CGPDFDocumentRef> pdf_doc_;
// Whether or not a page is currently open.
bool page_is_open_;
// Whether this instantiation of the PdfMetafileCg owns the thread_pdf_docs.
bool thread_pdf_docs_owned_;
DISALLOW_COPY_AND_ASSIGN(PdfMetafileCg);
};
} // namespace printing
#endif // PRINTING_PDF_METAFILE_CG_MAC_H_
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