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// Copyright (c) 2011 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"
class FilePath;
namespace gfx {
class Rect;
class Size;
class Point;
}
namespace printing {
// This class creates a graphics context that renders into a PDF data stream.
class PRINTING_EXPORT PdfMetafileCg : public Metafile {
public:
PdfMetafileCg();
virtual ~PdfMetafileCg();
// Metafile methods.
virtual bool Init();
virtual bool InitFromData(const void* src_buffer, uint32 src_buffer_size);
// Not implemented on mac.
virtual SkDevice* StartPageForVectorCanvas(
const gfx::Size& page_size, const gfx::Rect& content_area,
const float& scale_factor);
virtual bool StartPage(const gfx::Size& page_size,
const gfx::Rect& content_area,
const float& scale_factor);
virtual bool FinishPage();
virtual bool FinishDocument();
virtual uint32 GetDataSize() const;
virtual bool GetData(void* dst_buffer, uint32 dst_buffer_size) const;
// For testing purposes only.
virtual bool SaveTo(const FilePath& file_path) const;
virtual gfx::Rect GetPageBounds(unsigned int page_number) const;
virtual unsigned int GetPageCount() const;
// Note: The returned context *must not be retained* past Close(). If it is,
// the data returned from GetData will not be valid PDF data.
virtual CGContextRef context() const;
virtual bool RenderPage(unsigned int page_number,
CGContextRef context,
const CGRect rect,
bool shrink_to_fit,
bool stretch_to_fit,
bool center_horizontally,
bool center_vertically) const;
private:
// Returns a CGPDFDocumentRef version of pdf_data_.
CGPDFDocumentRef GetPDFDocument() const;
base::ThreadChecker thread_checker_;
// Context for rendering to the pdf.
base::mac::ScopedCFTypeRef<CGContextRef> context_;
// PDF backing store.
base::mac::ScopedCFTypeRef<CFMutableDataRef> pdf_data_;
// Lazily-created CGPDFDocument representation of pdf_data_.
mutable base::mac::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_