Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 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_PAGE_SETUP_H_ |
| 6 | #define PRINTING_PAGE_SETUP_H_ |
| 7 | |
| 8 | #include "printing/printing_export.h" |
| 9 | #include "ui/gfx/rect.h" |
| 10 | |
| 11 | namespace printing { |
| 12 | |
| 13 | // Margins for a page setup. |
| 14 | class PRINTING_EXPORT PageMargins { |
| 15 | public: |
| 16 | PageMargins(); |
| 17 | |
| 18 | void Clear(); |
| 19 | |
| 20 | // Equality operator. |
| 21 | bool Equals(const PageMargins& rhs) const; |
| 22 | |
| 23 | // Vertical space for the overlay from the top of the sheet. |
| 24 | int header; |
| 25 | // Vertical space for the overlay from the bottom of the sheet. |
| 26 | int footer; |
| 27 | // Margin on each side of the sheet. |
| 28 | int left; |
| 29 | int right; |
| 30 | int top; |
| 31 | int bottom; |
| 32 | }; |
| 33 | |
| 34 | // Settings that define the size and printable areas of a page. Unit is |
| 35 | // unspecified. |
| 36 | class PRINTING_EXPORT PageSetup { |
| 37 | public: |
| 38 | PageSetup(); |
| 39 | ~PageSetup(); |
| 40 | |
| 41 | void Clear(); |
| 42 | |
| 43 | // Equality operator. |
| 44 | bool Equals(const PageSetup& rhs) const; |
| 45 | |
| 46 | void Init(const gfx::Size& physical_size, const gfx::Rect& printable_area, |
| 47 | int text_height); |
| 48 | |
| 49 | // Use |requested_margins| as long as they fall inside the printable area. |
| 50 | void SetRequestedMargins(const PageMargins& requested_margins); |
| 51 | |
| 52 | // Ignore the printable area, and set the margins to |requested_margins|. |
| 53 | void ForceRequestedMargins(const PageMargins& requested_margins); |
| 54 | |
| 55 | // Flips the orientation of the page and recalculates all page areas. |
| 56 | void FlipOrientation(); |
| 57 | |
| 58 | const gfx::Size& physical_size() const { return physical_size_; } |
| 59 | const gfx::Rect& overlay_area() const { return overlay_area_; } |
| 60 | const gfx::Rect& content_area() const { return content_area_; } |
| 61 | const gfx::Rect& printable_area() const { return printable_area_; } |
| 62 | const PageMargins& effective_margins() const { |
| 63 | return effective_margins_; |
| 64 | } |
| 65 | |
| 66 | private: |
| 67 | // Store |requested_margins_| and update page setup values. |
| 68 | void SetRequestedMarginsAndCalculateSizes( |
| 69 | const PageMargins& requested_margins); |
| 70 | |
| 71 | // Calculate overlay_area_, effective_margins_, and content_area_, based on |
| 72 | // a constraint of |bounds| and |text_height|. |
| 73 | void CalculateSizesWithinRect(const gfx::Rect& bounds, int text_height); |
| 74 | |
| 75 | // Physical size of the page, including non-printable margins. |
| 76 | gfx::Size physical_size_; |
| 77 | |
| 78 | // The printable area as specified by the printer driver. We can't get |
| 79 | // larger than this. |
| 80 | gfx::Rect printable_area_; |
| 81 | |
| 82 | // The printable area for headers and footers. |
| 83 | gfx::Rect overlay_area_; |
| 84 | |
| 85 | // The printable area as selected by the user's margins. |
| 86 | gfx::Rect content_area_; |
| 87 | |
| 88 | // Effective margins. |
| 89 | PageMargins effective_margins_; |
| 90 | |
| 91 | // Requested margins. |
| 92 | PageMargins requested_margins_; |
| 93 | |
| 94 | // True when |effective_margins_| respects |printable_area_| else false. |
| 95 | bool forced_margins_; |
| 96 | |
| 97 | // Space that must be kept free for the overlays. |
| 98 | int text_height_; |
| 99 | }; |
| 100 | |
| 101 | } // namespace printing |
| 102 | |
| 103 | #endif // PRINTING_PAGE_SETUP_H_ |