image/src/Orientation.h@ac0c01689b40 (annotated)
image/src/Orientation.h
Thu, 15 Jan 2015 15:59:08 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:59:08 +0100
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
- permissions
- -rw-r--r--
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef MOZILLA_IMAGELIB_ORIENTATION_H_ |
| michael@0 | 7 | #define MOZILLA_IMAGELIB_ORIENTATION_H_ |
| michael@0 | 8 | |
| michael@0 | 9 | #include <stdint.h> |
| michael@0 | 10 | #include "mozilla/TypedEnum.h" |
| michael@0 | 11 | |
| michael@0 | 12 | namespace mozilla { |
| michael@0 | 13 | namespace image { |
| michael@0 | 14 | |
| michael@0 | 15 | MOZ_BEGIN_ENUM_CLASS(Angle, uint8_t) |
| michael@0 | 16 | D0, |
| michael@0 | 17 | D90, |
| michael@0 | 18 | D180, |
| michael@0 | 19 | D270 |
| michael@0 | 20 | MOZ_END_ENUM_CLASS(Angle) |
| michael@0 | 21 | |
| michael@0 | 22 | MOZ_BEGIN_ENUM_CLASS(Flip, uint8_t) |
| michael@0 | 23 | Unflipped, |
| michael@0 | 24 | Horizontal |
| michael@0 | 25 | MOZ_END_ENUM_CLASS(Flip) |
| michael@0 | 26 | |
| michael@0 | 27 | /** |
| michael@0 | 28 | * A struct that describes an image's orientation as a rotation optionally |
| michael@0 | 29 | * followed by a reflection. This may be used to be indicate an image's inherent |
| michael@0 | 30 | * orientation or a desired orientation for the image. |
| michael@0 | 31 | */ |
| michael@0 | 32 | struct Orientation |
| michael@0 | 33 | { |
| michael@0 | 34 | Orientation(Angle aRotation = Angle::D0, Flip mFlip = Flip::Unflipped) |
| michael@0 | 35 | : rotation(aRotation) |
| michael@0 | 36 | , flip(mFlip) |
| michael@0 | 37 | { } |
| michael@0 | 38 | |
| michael@0 | 39 | bool IsIdentity() const { |
| michael@0 | 40 | return (rotation == Angle::D0) && (flip == Flip::Unflipped); |
| michael@0 | 41 | } |
| michael@0 | 42 | |
| michael@0 | 43 | bool SwapsWidthAndHeight() const { |
| michael@0 | 44 | return (rotation == Angle::D90) || (rotation == Angle::D270); |
| michael@0 | 45 | } |
| michael@0 | 46 | |
| michael@0 | 47 | bool operator==(const Orientation& aOther) const { |
| michael@0 | 48 | return (rotation == aOther.rotation) && (flip == aOther.flip); |
| michael@0 | 49 | } |
| michael@0 | 50 | |
| michael@0 | 51 | bool operator!=(const Orientation& aOther) const { |
| michael@0 | 52 | return !(*this == aOther); |
| michael@0 | 53 | } |
| michael@0 | 54 | |
| michael@0 | 55 | Angle rotation; |
| michael@0 | 56 | Flip flip; |
| michael@0 | 57 | }; |
| michael@0 | 58 | |
| michael@0 | 59 | } |
| michael@0 | 60 | } |
| michael@0 | 61 | |
| michael@0 | 62 | #endif |
