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Side by Side Diff: printing/metafile.h

Issue 2117713002: Print directly to CUPS using the IPP APIs (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@ippRead
Patch Set: format and merge Created 4 years, 4 months ago
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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_METAFILE_H_ 5 #ifndef PRINTING_METAFILE_H_
6 #define PRINTING_METAFILE_H_ 6 #define PRINTING_METAFILE_H_
7 7
8 #include <stdint.h> 8 #include <stdint.h>
9 9
10 #include <vector> 10 #include <vector>
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79 #elif defined(OS_MACOSX) 79 #elif defined(OS_MACOSX)
80 // Renders the given page into |rect| in the given context. 80 // Renders the given page into |rect| in the given context.
81 // Pages use a 1-based index. The rendering uses the arguments in 81 // Pages use a 1-based index. The rendering uses the arguments in
82 // |params| to determine scaling, translation, and rotation. 82 // |params| to determine scaling, translation, and rotation.
83 virtual bool RenderPage(unsigned int page_number, 83 virtual bool RenderPage(unsigned int page_number,
84 gfx::NativeDrawingContext context, 84 gfx::NativeDrawingContext context,
85 const CGRect rect, 85 const CGRect rect,
86 const MacRenderPageParams& params) const = 0; 86 const MacRenderPageParams& params) const = 0;
87 #endif // if defined(OS_WIN) 87 #endif // if defined(OS_WIN)
88 88
89 // Populates the buffer with the underlying data. This function should ONLY be
90 // called after the metafile is closed. Returns true if writing succeeded.
91 virtual bool GetDataAsVector(std::vector<char>* buffer) const = 0;
92
89 // Saves the underlying data to the given file. This function should ONLY be 93 // Saves the underlying data to the given file. This function should ONLY be
90 // called after the metafile is closed. Returns true if writing succeeded. 94 // called after the metafile is closed. Returns true if writing succeeded.
91 virtual bool SaveTo(base::File* file) const = 0; 95 virtual bool SaveTo(base::File* file) const = 0;
92 96
93 private: 97 private:
94 DISALLOW_COPY_AND_ASSIGN(MetafilePlayer); 98 DISALLOW_COPY_AND_ASSIGN(MetafilePlayer);
95 }; 99 };
96 100
97 // This class creates a graphics context that renders into a data stream 101 // This class creates a graphics context that renders into a data stream
98 // (usually PDF or EMF). 102 // (usually PDF or EMF).
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148 // "logical units" and is optional. If |rect| is NULL, the natural EMF bounds 152 // "logical units" and is optional. If |rect| is NULL, the natural EMF bounds
149 // are used. 153 // are used.
150 // Note: Windows has been known to have stack buffer overflow in its GDI 154 // Note: Windows has been known to have stack buffer overflow in its GDI
151 // functions, whether used directly or indirectly through precompiled EMF 155 // functions, whether used directly or indirectly through precompiled EMF
152 // data. We have to accept the risk here. Since it is used only for printing, 156 // data. We have to accept the risk here. Since it is used only for printing,
153 // it requires user intervention. 157 // it requires user intervention.
154 virtual bool Playback(gfx::NativeDrawingContext hdc, 158 virtual bool Playback(gfx::NativeDrawingContext hdc,
155 const RECT* rect) const = 0; 159 const RECT* rect) const = 0;
156 #endif // OS_WIN 160 #endif // OS_WIN
157 161
158 bool GetDataAsVector(std::vector<char>* buffer) const; 162 // MetfilePlayer
159 163 bool GetDataAsVector(std::vector<char>* buffer) const override;
160 bool SaveTo(base::File* file) const override; 164 bool SaveTo(base::File* file) const override;
161 165
162 private: 166 private:
163 DISALLOW_COPY_AND_ASSIGN(Metafile); 167 DISALLOW_COPY_AND_ASSIGN(Metafile);
164 }; 168 };
165 169
166 } // namespace printing 170 } // namespace printing
167 171
168 #endif // PRINTING_METAFILE_H_ 172 #endif // PRINTING_METAFILE_H_
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