1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef PRINTING_PDF_METAFILE_SKIA_H_ 6#define PRINTING_PDF_METAFILE_SKIA_H_ 7 8#include "base/basictypes.h" 9#include "base/logging.h" 10#include "base/memory/scoped_ptr.h" 11#include "build/build_config.h" 12#include "printing/metafile.h" 13 14#if defined(OS_WIN) 15#include <windows.h> 16#endif 17 18#if defined(OS_CHROMEOS) || defined(OS_ANDROID) 19namespace base { 20struct FileDescriptor; 21} 22#endif 23 24namespace printing { 25 26struct PdfMetafileSkiaData; 27 28// This class uses Skia graphics library to generate a PDF document. 29class PRINTING_EXPORT PdfMetafileSkia : public Metafile { 30 public: 31 PdfMetafileSkia(); 32 virtual ~PdfMetafileSkia(); 33 34 // Metafile methods. 35 virtual bool Init() OVERRIDE; 36 virtual bool InitFromData(const void* src_buffer, 37 uint32 src_buffer_size) OVERRIDE; 38 39 virtual SkBaseDevice* StartPageForVectorCanvas( 40 const gfx::Size& page_size, 41 const gfx::Rect& content_area, 42 const float& scale_factor) OVERRIDE; 43 44 virtual bool StartPage(const gfx::Size& page_size, 45 const gfx::Rect& content_area, 46 const float& scale_factor) OVERRIDE; 47 virtual bool FinishPage() OVERRIDE; 48 virtual bool FinishDocument() OVERRIDE; 49 50 virtual uint32 GetDataSize() const OVERRIDE; 51 virtual bool GetData(void* dst_buffer, uint32 dst_buffer_size) const OVERRIDE; 52 53 virtual gfx::Rect GetPageBounds(unsigned int page_number) const OVERRIDE; 54 virtual unsigned int GetPageCount() const OVERRIDE; 55 56 virtual gfx::NativeDrawingContext context() const OVERRIDE; 57 58#if defined(OS_WIN) 59 virtual bool Playback(gfx::NativeDrawingContext hdc, 60 const RECT* rect) const OVERRIDE; 61 virtual bool SafePlayback(gfx::NativeDrawingContext hdc) const OVERRIDE; 62#elif defined(OS_MACOSX) 63 virtual bool RenderPage(unsigned int page_number, 64 gfx::NativeDrawingContext context, 65 const CGRect rect, 66 const MacRenderPageParams& params) const OVERRIDE; 67#endif 68 69#if defined(OS_CHROMEOS) || defined(OS_ANDROID) 70 // TODO(vitalybuka): replace with SaveTo(). 71 bool SaveToFD(const base::FileDescriptor& fd) const; 72#endif // if defined(OS_CHROMEOS) || defined(OS_ANDROID) 73 74 // Return a new metafile containing just the current page in draft mode. 75 scoped_ptr<PdfMetafileSkia> GetMetafileForCurrentPage(); 76 77 private: 78 scoped_ptr<PdfMetafileSkiaData> data_; 79 80 // True when finish page is outstanding for current page. 81 bool page_outstanding_; 82 83 DISALLOW_COPY_AND_ASSIGN(PdfMetafileSkia); 84}; 85 86} // namespace printing 87 88#endif // PRINTING_PDF_METAFILE_SKIA_H_ 89