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 scoped_ptr<MetafilePlayer> metafile, 27 const gfx::Size& page_size, 28 const gfx::Rect& page_content_rect); 29 30 // Getters 31 int page_number() const { return page_number_; } 32 const MetafilePlayer* metafile() const; 33 const gfx::Size& page_size() const { return page_size_; } 34 const gfx::Rect& page_content_rect() const { return page_content_rect_; } 35 #if defined(OS_WIN) 36 void set_shrink_factor(double shrink_factor) { 37 shrink_factor_ = shrink_factor; 38 } 39 double shrink_factor() const { return shrink_factor_; } 40 #endif // OS_WIN 41 42 // Get page content rect adjusted based on 43 // http://dev.w3.org/csswg/css3-page/#positioning-page-box 44 void GetCenteredPageContentRect(const gfx::Size& paper_size, 45 gfx::Rect* content_rect) const; 46 47 private: 48 friend class base::RefCountedThreadSafe<PrintedPage>; 49 50 ~PrintedPage(); 51 52 // Page number inside the printed document. 53 const int page_number_; 54 55 // Actual paint data. 56 const scoped_ptr<MetafilePlayer> metafile_; 57 58 #if defined(OS_WIN) 59 // Shrink done in comparison to desired_dpi. 60 double shrink_factor_; 61 #endif // OS_WIN 62 63 // The physical page size. To support multiple page formats inside on print 64 // job. 65 const gfx::Size page_size_; 66 67 // The printable area of the page. 68 const gfx::Rect page_content_rect_; 69 70 DISALLOW_COPY_AND_ASSIGN(PrintedPage); 71 }; 72 73 } // namespace printing 74 75 #endif // PRINTING_PRINTED_PAGE_H_ 76
