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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_PS_METAFILE_CAIRO_H_
#define PRINTING_PDF_PS_METAFILE_CAIRO_H_
#include <string>
#include "base/basictypes.h"
#include "base/gtest_prod_util.h"
#include "printing/native_metafile.h"
typedef struct _cairo_surface cairo_surface_t;
namespace printing {
// This class uses Cairo graphics library to generate PDF stream and stores
// rendering results in a string buffer.
class PdfPsMetafile : public NativeMetafile {
public:
virtual ~PdfPsMetafile();
// NativeMetafile methods.
virtual bool Init();
virtual bool Init(const void* src_buffer, uint32 src_buffer_size);
virtual cairo_t* StartPage(const gfx::Size& page_size,
double margin_top_in_points,
double margin_left_in_points);
virtual bool FinishPage();
virtual bool Close();
virtual uint32 GetDataSize() const;
virtual bool GetData(void* dst_buffer, uint32 dst_buffer_size) const;
virtual bool SaveTo(const FilePath& file_path) const;
virtual gfx::Rect GetPageBounds(unsigned int page_number) const;
virtual unsigned int GetPageCount() const;
virtual cairo_t* context() const;
virtual bool SetRawData(const void* src_buffer, uint32 src_buffer_size);
#if defined(OS_CHROMEOS)
virtual bool SaveToFD(const base::FileDescriptor& fd) const;
#endif // if defined(OS_CHROMEOS)
// Returns the PdfPsMetafile object that owns the given context. Returns NULL
// if the context was not created by a PdfPsMetafile object.
static PdfPsMetafile* FromCairoContext(cairo_t* context);
protected:
PdfPsMetafile();
private:
friend class NativeMetafileFactory;
FRIEND_TEST_ALL_PREFIXES(PdfPsTest, Pdf);
// Cleans up all resources.
void CleanUpAll();
// Cairo surface and context for entire PDF file.
cairo_surface_t* surface_;
cairo_t* context_;
// Buffer stores PDF contents for entire PDF file.
std::string data_;
// Buffer stores raw PDF contents set by SetRawPageData.
std::string raw_override_data_;
DISALLOW_COPY_AND_ASSIGN(PdfPsMetafile);
};
} // namespace printing
#endif // PRINTING_PDF_PS_METAFILE_CAIRO_H_
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