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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef PRINTING_EMF_WIN_H_ | 5 #ifndef PRINTING_EMF_WIN_H_ |
| 6 #define PRINTING_EMF_WIN_H_ | 6 #define PRINTING_EMF_WIN_H_ |
| 7 | 7 |
| 8 #include <windows.h> | 8 #include <windows.h> |
| 9 | 9 |
| 10 #include <vector> | 10 #include <vector> |
| 11 | 11 |
| 12 #include "base/basictypes.h" | 12 #include "base/basictypes.h" |
| 13 #include "base/compiler_specific.h" | 13 #include "base/compiler_specific.h" |
| 14 #include "base/gtest_prod_util.h" | 14 #include "base/gtest_prod_util.h" |
| 15 #include "printing/metafile.h" | 15 #include "printing/metafile.h" |
| 16 | 16 |
| 17 namespace base { |
| 17 class FilePath; | 18 class FilePath; |
| 19 } |
| 18 | 20 |
| 19 namespace gfx { | 21 namespace gfx { |
| 20 class Rect; | 22 class Rect; |
| 21 class Size; | 23 class Size; |
| 22 } | 24 } |
| 23 | 25 |
| 24 namespace printing { | 26 namespace printing { |
| 25 | 27 |
| 26 // http://msdn2.microsoft.com/en-us/library/ms535522.aspx | 28 // http://msdn2.microsoft.com/en-us/library/ms535522.aspx |
| 27 // Windows 2000/XP: When a page in a spooled file exceeds approximately 350 | 29 // Windows 2000/XP: When a page in a spooled file exceeds approximately 350 |
| 28 // MB, it can fail to print and not send an error message. | 30 // MB, it can fail to print and not send an error message. |
| 29 const size_t kMetafileMaxSize = 350*1024*1024; | 31 const size_t kMetafileMaxSize = 350*1024*1024; |
| 30 | 32 |
| 31 // Simple wrapper class that manage an EMF data stream and its virtual HDC. | 33 // Simple wrapper class that manage an EMF data stream and its virtual HDC. |
| 32 class PRINTING_EXPORT Emf : public Metafile { | 34 class PRINTING_EXPORT Emf : public Metafile { |
| 33 public: | 35 public: |
| 34 class Record; | 36 class Record; |
| 35 class Enumerator; | 37 class Enumerator; |
| 36 struct EnumerationContext; | 38 struct EnumerationContext; |
| 37 | 39 |
| 38 // Generates a virtual HDC that will record every GDI commands and compile | 40 // Generates a virtual HDC that will record every GDI commands and compile |
| 39 // it in a EMF data stream. | 41 // it in a EMF data stream. |
| 40 Emf(); | 42 Emf(); |
| 41 virtual ~Emf(); | 43 virtual ~Emf(); |
| 42 | 44 |
| 43 // Generates a new metafile that will record every GDI command, and will | 45 // Generates a new metafile that will record every GDI command, and will |
| 44 // be saved to |metafile_path|. | 46 // be saved to |metafile_path|. |
| 45 virtual bool InitToFile(const FilePath& metafile_path); | 47 virtual bool InitToFile(const base::FilePath& metafile_path); |
| 46 | 48 |
| 47 // Initializes the Emf with the data in |metafile_path|. | 49 // Initializes the Emf with the data in |metafile_path|. |
| 48 virtual bool InitFromFile(const FilePath& metafile_path); | 50 virtual bool InitFromFile(const base::FilePath& metafile_path); |
| 49 | 51 |
| 50 // Metafile methods. | 52 // Metafile methods. |
| 51 virtual bool Init() OVERRIDE; | 53 virtual bool Init() OVERRIDE; |
| 52 virtual bool InitFromData(const void* src_buffer, | 54 virtual bool InitFromData(const void* src_buffer, |
| 53 uint32 src_buffer_size) OVERRIDE; | 55 uint32 src_buffer_size) OVERRIDE; |
| 54 | 56 |
| 55 virtual SkDevice* StartPageForVectorCanvas( | 57 virtual SkDevice* StartPageForVectorCanvas( |
| 56 const gfx::Size& page_size, const gfx::Rect& content_area, | 58 const gfx::Size& page_size, const gfx::Rect& content_area, |
| 57 const float& scale_factor) OVERRIDE; | 59 const float& scale_factor) OVERRIDE; |
| 58 // Inserts a custom GDICOMMENT records indicating StartPage/EndPage calls | 60 // Inserts a custom GDICOMMENT records indicating StartPage/EndPage calls |
| 59 // (since StartPage and EndPage do not work in a metafile DC). Only valid | 61 // (since StartPage and EndPage do not work in a metafile DC). Only valid |
| 60 // when hdc_ is non-NULL. |page_size|, |content_area|, and |scale_factor| are | 62 // when hdc_ is non-NULL. |page_size|, |content_area|, and |scale_factor| are |
| 61 // ignored. | 63 // ignored. |
| 62 virtual bool StartPage(const gfx::Size& page_size, | 64 virtual bool StartPage(const gfx::Size& page_size, |
| 63 const gfx::Rect& content_area, | 65 const gfx::Rect& content_area, |
| 64 const float& scale_factor) OVERRIDE; | 66 const float& scale_factor) OVERRIDE; |
| 65 virtual bool FinishPage() OVERRIDE; | 67 virtual bool FinishPage() OVERRIDE; |
| 66 virtual bool FinishDocument() OVERRIDE; | 68 virtual bool FinishDocument() OVERRIDE; |
| 67 | 69 |
| 68 virtual uint32 GetDataSize() const OVERRIDE; | 70 virtual uint32 GetDataSize() const OVERRIDE; |
| 69 virtual bool GetData(void* buffer, uint32 size) const OVERRIDE; | 71 virtual bool GetData(void* buffer, uint32 size) const OVERRIDE; |
| 70 | 72 |
| 71 // Saves the EMF data to a file as-is. It is recommended to use the .emf file | 73 // Saves the EMF data to a file as-is. It is recommended to use the .emf file |
| 72 // extension but it is not enforced. This function synchronously writes to the | 74 // extension but it is not enforced. This function synchronously writes to the |
| 73 // file. For testing only. | 75 // file. For testing only. |
| 74 virtual bool SaveTo(const FilePath& file_path) const OVERRIDE; | 76 virtual bool SaveTo(const base::FilePath& file_path) const OVERRIDE; |
| 75 | 77 |
| 76 // Should be passed to Playback to keep the exact same size. | 78 // Should be passed to Playback to keep the exact same size. |
| 77 virtual gfx::Rect GetPageBounds(unsigned int page_number) const OVERRIDE; | 79 virtual gfx::Rect GetPageBounds(unsigned int page_number) const OVERRIDE; |
| 78 | 80 |
| 79 virtual unsigned int GetPageCount() const OVERRIDE { | 81 virtual unsigned int GetPageCount() const OVERRIDE { |
| 80 return page_count_; | 82 return page_count_; |
| 81 } | 83 } |
| 82 | 84 |
| 83 virtual HDC context() const OVERRIDE { | 85 virtual HDC context() const OVERRIDE { |
| 84 return hdc_; | 86 return hdc_; |
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| 196 std::vector<Record> items_; | 198 std::vector<Record> items_; |
| 197 | 199 |
| 198 EnumerationContext context_; | 200 EnumerationContext context_; |
| 199 | 201 |
| 200 DISALLOW_COPY_AND_ASSIGN(Enumerator); | 202 DISALLOW_COPY_AND_ASSIGN(Enumerator); |
| 201 }; | 203 }; |
| 202 | 204 |
| 203 } // namespace printing | 205 } // namespace printing |
| 204 | 206 |
| 205 #endif // PRINTING_EMF_WIN_H_ | 207 #endif // PRINTING_EMF_WIN_H_ |
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