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
18namespace printing {
19
20struct PdfMetafileSkiaData;
21
22// This class uses Skia graphics library to generate a PDF document.
23class PRINTING_EXPORT PdfMetafileSkia : public Metafile {
24 public:
25  PdfMetafileSkia();
26  virtual ~PdfMetafileSkia();
27
28  // Metafile methods.
29  virtual bool Init() OVERRIDE;
30  virtual bool InitFromData(const void* src_buffer,
31                            uint32 src_buffer_size) OVERRIDE;
32
33  virtual SkDevice* StartPageForVectorCanvas(
34      const gfx::Size& page_size,
35      const gfx::Rect& content_area,
36      const float& scale_factor) OVERRIDE;
37
38  virtual bool StartPage(const gfx::Size& page_size,
39                         const gfx::Rect& content_area,
40                         const float& scale_factor) OVERRIDE;
41  virtual bool FinishPage() OVERRIDE;
42  virtual bool FinishDocument() OVERRIDE;
43
44  virtual uint32 GetDataSize() const OVERRIDE;
45  virtual bool GetData(void* dst_buffer, uint32 dst_buffer_size) const OVERRIDE;
46
47  virtual bool SaveTo(const base::FilePath& file_path) const OVERRIDE;
48
49  virtual gfx::Rect GetPageBounds(unsigned int page_number) const OVERRIDE;
50  virtual unsigned int GetPageCount() const OVERRIDE;
51
52  virtual gfx::NativeDrawingContext context() const OVERRIDE;
53
54#if defined(OS_WIN)
55  virtual bool Playback(gfx::NativeDrawingContext hdc,
56                        const RECT* rect) const OVERRIDE;
57  virtual bool SafePlayback(gfx::NativeDrawingContext hdc) const OVERRIDE;
58  virtual HENHMETAFILE emf() const OVERRIDE;
59#elif defined(OS_MACOSX)
60  virtual bool RenderPage(unsigned int page_number,
61                          gfx::NativeDrawingContext context,
62                          const CGRect rect,
63                          const MacRenderPageParams& params) const OVERRIDE;
64#endif
65
66#if defined(OS_CHROMEOS) || defined(OS_ANDROID)
67  virtual bool SaveToFD(const base::FileDescriptor& fd) const OVERRIDE;
68#endif  // if defined(OS_CHROMEOS) || defined(OS_ANDROID)
69
70  // Return a new metafile containing just the current page in draft mode.
71  PdfMetafileSkia* GetMetafileForCurrentPage();
72
73 private:
74  scoped_ptr<PdfMetafileSkiaData> data_;
75
76  // True when finish page is outstanding for current page.
77  bool page_outstanding_;
78
79  DISALLOW_COPY_AND_ASSIGN(PdfMetafileSkia);
80};
81
82}  // namespace printing
83
84#endif  // PRINTING_PDF_METAFILE_SKIA_H_
85