OLD | NEW |
| (Empty) |
1 // Copyright (c) 2011 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_CAIRO_LINUX_H_ | |
6 #define PRINTING_PDF_METAFILE_CAIRO_LINUX_H_ | |
7 | |
8 #include <string> | |
9 | |
10 #include "base/basictypes.h" | |
11 #include "base/gtest_prod_util.h" | |
12 #include "printing/metafile.h" | |
13 | |
14 namespace gfx { | |
15 class Point; | |
16 class Rect; | |
17 class Size; | |
18 } | |
19 | |
20 typedef struct _cairo_surface cairo_surface_t; | |
21 | |
22 namespace printing { | |
23 | |
24 // This class uses Cairo graphics library to generate PDF stream and stores | |
25 // rendering results in a string buffer. | |
26 class PRINTING_EXPORT PdfMetafileCairo : public Metafile { | |
27 public: | |
28 PdfMetafileCairo(); | |
29 virtual ~PdfMetafileCairo(); | |
30 | |
31 // Metafile methods. | |
32 virtual bool Init(); | |
33 | |
34 // Calling InitFromData() sets the data for this metafile and masks data | |
35 // induced by previous calls to Init() or InitFromData(), even if drawing | |
36 // continues on the surface returned by a previous call to Init(). | |
37 virtual bool InitFromData(const void* src_buffer, uint32 src_buffer_size); | |
38 | |
39 virtual SkDevice* StartPageForVectorCanvas( | |
40 const gfx::Size& page_size, const gfx::Rect& content_area, | |
41 const float& scale_factor); | |
42 | |
43 virtual bool StartPage(const gfx::Size& page_size, | |
44 const gfx::Rect& content_area, | |
45 const float& scale_factor); | |
46 virtual bool FinishPage(); | |
47 virtual bool FinishDocument(); | |
48 | |
49 virtual uint32 GetDataSize() const; | |
50 virtual bool GetData(void* dst_buffer, uint32 dst_buffer_size) const; | |
51 | |
52 virtual bool SaveTo(const FilePath& file_path) const; | |
53 | |
54 virtual gfx::Rect GetPageBounds(unsigned int page_number) const; | |
55 virtual unsigned int GetPageCount() const; | |
56 | |
57 virtual cairo_t* context() const; | |
58 | |
59 #if defined(OS_CHROMEOS) | |
60 virtual bool SaveToFD(const base::FileDescriptor& fd) const; | |
61 #endif // if defined(OS_CHROMEOS) | |
62 | |
63 private: | |
64 // Cleans up all resources. | |
65 void CleanUpAll(); | |
66 | |
67 // Cairo surface and context for entire PDF file. | |
68 cairo_surface_t* surface_; | |
69 cairo_t* context_; | |
70 | |
71 // Buffer stores PDF contents for entire PDF file. | |
72 std::string cairo_data_; | |
73 // Buffer stores PDF contents. It can only be populated from InitFromData(). | |
74 // Any calls to StartPage(), FinishPage(), FinishDocument() do not affect | |
75 // this buffer. | |
76 // Note: Such calls will result in DCHECK errors if Init() has not been called | |
77 // first. | |
78 std::string raw_data_; | |
79 // Points to the appropriate buffer depending on the way the object was | |
80 // initialized (Init() vs InitFromData()). | |
81 std::string* current_data_; | |
82 | |
83 DISALLOW_COPY_AND_ASSIGN(PdfMetafileCairo); | |
84 }; | |
85 | |
86 } // namespace printing | |
87 | |
88 #endif // PRINTING_PDF_METAFILE_CAIRO_LINUX_H_ | |
OLD | NEW |