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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_PDF_METAFILE_CG_MAC_H_ | 5 #ifndef PRINTING_PDF_METAFILE_CG_MAC_H_ |
6 #define PRINTING_PDF_METAFILE_CG_MAC_H_ | 6 #define PRINTING_PDF_METAFILE_CG_MAC_H_ |
7 | 7 |
8 #include <ApplicationServices/ApplicationServices.h> | 8 #include <ApplicationServices/ApplicationServices.h> |
9 #include <CoreFoundation/CoreFoundation.h> | 9 #include <CoreFoundation/CoreFoundation.h> |
10 #include <stdint.h> | 10 #include <stdint.h> |
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38 uint32_t GetDataSize() const override; | 38 uint32_t GetDataSize() const override; |
39 bool GetData(void* dst_buffer, uint32_t dst_buffer_size) const override; | 39 bool GetData(void* dst_buffer, uint32_t dst_buffer_size) const override; |
40 | 40 |
41 gfx::Rect GetPageBounds(unsigned int page_number) const override; | 41 gfx::Rect GetPageBounds(unsigned int page_number) const override; |
42 unsigned int GetPageCount() const override; | 42 unsigned int GetPageCount() const override; |
43 | 43 |
44 // Note: The returned context *must not be retained* past Close(). If it is, | 44 // Note: The returned context *must not be retained* past Close(). If it is, |
45 // the data returned from GetData will not be valid PDF data. | 45 // the data returned from GetData will not be valid PDF data. |
46 CGContextRef context() const override; | 46 CGContextRef context() const override; |
47 | 47 |
48 // |shrink_to_fit| specifies whether the output should be shrunk to fit a | 48 bool RenderPage(unsigned int page_number, |
49 // destination page if the source PDF is bigger than the destination page in | 49 skia::NativeDrawingContext context, |
50 // any dimension. If this is false, parts of the source PDF page that lie | 50 const CGRect rect, |
51 // outside the bounds will be clipped. | 51 const MacRenderPageParams& params) const override; |
52 // | |
53 // |stretch_to_fit| specifies whether the output should be stretched to fit | |
54 // the destination page if the source page size is smaller in all dimensions. | |
55 // | |
56 // |center_horizontally| specifies whether the output (after any scaling is | |
57 // done) should be centered horizontally within the destination page. | |
58 // | |
59 // |center_vertically| specifies whether the output (after any scaling is | |
60 // done) should be centered vertically within the destination page. | |
61 // Note that all scaling preserves the original aspect ratio of the page. | |
62 // | |
63 // |autorotate| specifies whether the source PDF should be autorotated to fit | |
64 // on the destination page. | |
65 struct RenderPageParams { | |
66 bool shrink_to_fit = false; | |
67 bool stretch_to_fit = false; | |
68 bool center_horizontally = false; | |
69 bool center_vertically = false; | |
70 bool autorotate = false; | |
71 }; | |
72 // Renders the given page from |src_buffer| into |rect| in the given context. | |
73 // Pages use a 1-based index. The rendering uses the arguments in | |
74 // |params| to determine scaling, translation, and rotation. | |
75 static bool RenderPage(const std::vector<char>& src_buffer, | |
76 unsigned int page_number, | |
77 CGContextRef context, | |
78 const CGRect rect, | |
79 const RenderPageParams& params); | |
80 | 52 |
81 private: | 53 private: |
82 // Returns a CGPDFDocumentRef version of |pdf_data_|. | 54 // Returns a CGPDFDocumentRef version of |pdf_data_|. |
83 CGPDFDocumentRef GetPDFDocument() const; | 55 CGPDFDocumentRef GetPDFDocument() const; |
84 | 56 |
85 // Context for rendering to the pdf. | 57 // Context for rendering to the pdf. |
86 base::ScopedCFTypeRef<CGContextRef> context_; | 58 base::ScopedCFTypeRef<CGContextRef> context_; |
87 | 59 |
88 // PDF backing store. | 60 // PDF backing store. |
89 base::ScopedCFTypeRef<CFMutableDataRef> pdf_data_; | 61 base::ScopedCFTypeRef<CFMutableDataRef> pdf_data_; |
90 | 62 |
91 // Lazily-created CGPDFDocument representation of |pdf_data_|. | 63 // Lazily-created CGPDFDocument representation of |pdf_data_|. |
92 mutable base::ScopedCFTypeRef<CGPDFDocumentRef> pdf_doc_; | 64 mutable base::ScopedCFTypeRef<CGPDFDocumentRef> pdf_doc_; |
93 | 65 |
94 // Whether or not a page is currently open. | 66 // Whether or not a page is currently open. |
95 bool page_is_open_; | 67 bool page_is_open_; |
96 | 68 |
97 DISALLOW_COPY_AND_ASSIGN(PdfMetafileCg); | 69 DISALLOW_COPY_AND_ASSIGN(PdfMetafileCg); |
98 }; | 70 }; |
99 | 71 |
100 } // namespace printing | 72 } // namespace printing |
101 | 73 |
102 #endif // PRINTING_PDF_METAFILE_CG_MAC_H_ | 74 #endif // PRINTING_PDF_METAFILE_CG_MAC_H_ |
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