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_PRINTED_PAGE_H_ 6 #define PRINTING_PRINTED_PAGE_H_ 7 8 #include "base/memory/ref_counted.h" 9 #include "base/memory/scoped_ptr.h" 10 #include "printing/metafile.h" 11 #include "ui/gfx/rect.h" 12 #include "ui/gfx/size.h" 13 14 namespace printing { 15 16 // Contains the data to reproduce a printed page, either on screen or on 17 // paper. Once created, this object is immutable. It has no reference to the 18 // PrintedDocument containing this page. 19 // Note: May be accessed from many threads at the same time. This is an non 20 // issue since this object is immutable. The reason is that a page may be 21 // printed and be displayed at the same time. 22 class PRINTING_EXPORT PrintedPage 23 : public base::RefCountedThreadSafe<PrintedPage> { 24 public: 25 PrintedPage(int page_number, 26 Metafile* metafile, 27 const gfx::Size& page_size, 28 const gfx::Rect& page_content_rect, 29 double shrink_factor); 30 31 // Getters 32 int page_number() const { return page_number_; } 33 const Metafile* metafile() const; 34 const gfx::Size& page_size() const { return page_size_; } 35 const gfx::Rect& page_content_rect() const { return page_content_rect_; } 36 double shrink_factor() const { return shrink_factor_; } 37 38 // Get page content rect adjusted based on 39 // http://dev.w3.org/csswg/css3-page/#positioning-page-box 40 void GetCenteredPageContentRect(const gfx::Size& paper_size, 41 gfx::Rect* content_rect) const; 42 43 private: 44 friend class base::RefCountedThreadSafe<PrintedPage>; 45 46 ~PrintedPage(); 47 48 // Page number inside the printed document. 49 const int page_number_; 50 51 // Actual paint data. 52 const scoped_ptr<Metafile> metafile_; 53 54 // The physical page size. To support multiple page formats inside on print 55 // job. 56 const gfx::Size page_size_; 57 58 // The printable area of the page. 59 const gfx::Rect page_content_rect_; 60 61 // Shrink done in comparison to desired_dpi. 62 double shrink_factor_; 63 64 DISALLOW_COPY_AND_ASSIGN(PrintedPage); 65 }; 66 67 } // namespace printing 68 69 #endif // PRINTING_PRINTED_PAGE_H_ 70
