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// Copyright 2014 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 CHROME_BROWSER_PRINTING_PDF_TO_EMF_CONVERTER_H_
#define CHROME_BROWSER_PRINTING_PDF_TO_EMF_CONVERTER_H_
#include "base/callback.h"
#include "base/memory/ref_counted_memory.h"
#include "base/memory/scoped_ptr.h"
namespace base {
class FilePath;
}
namespace printing {
class MetafilePlayer;
class PdfRenderSettings;
class PdfToEmfConverter {
public:
typedef base::Callback<void(int page_count)> StartCallback;
typedef base::Callback<void(int page_number,
float scale_factor,
scoped_ptr<MetafilePlayer> emf)> GetPageCallback;
virtual ~PdfToEmfConverter();
static scoped_ptr<PdfToEmfConverter> CreateDefault();
// Starts conversion of PDF provided as |data|. Calls |start_callback|
// with positive |page_count|. |page_count| is 0 if initialization failed.
virtual void Start(const scoped_refptr<base::RefCountedMemory>& data,
const PdfRenderSettings& conversion_settings,
const StartCallback& start_callback) = 0;
// Requests conversion of the page. |page_number| is 0-base page number in
// PDF provided in Start() call.
// Calls |get_page_callback| after conversion. |emf| of callback in not NULL
// if conversion succeeded.
virtual void GetPage(int page_number,
const GetPageCallback& get_page_callback) = 0;
};
} // namespace printing
#endif // CHROME_BROWSER_PRINTING_PDF_TO_EMF_CONVERTER_H_
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