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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_DEVICE_ORIENTATION_ORIENTATION_H_
#define CHROME_BROWSER_DEVICE_ORIENTATION_ORIENTATION_H_
namespace device_orientation {
class Orientation {
public:
// alpha, beta and gamma are the rotations around the axes as specified in
// http://dev.w3.org/geo/api/spec-source-orientation.html
//
// can_provide_{alpha,beta,gamma} is true if data can be provided for that
// variable.
Orientation(bool can_provide_alpha, double alpha,
bool can_provide_beta, double beta,
bool can_provide_gamma, double gamma)
: alpha_(alpha),
beta_(beta),
gamma_(gamma),
can_provide_alpha_(can_provide_alpha),
can_provide_beta_(can_provide_beta),
can_provide_gamma_(can_provide_gamma) {
}
Orientation()
: alpha_(0),
beta_(0),
gamma_(0),
can_provide_alpha_(false),
can_provide_beta_(false),
can_provide_gamma_(false) {
}
static Orientation Empty() { return Orientation(); }
bool IsEmpty() const {
return !can_provide_alpha_ && !can_provide_beta_ && !can_provide_gamma_;
}
double alpha_;
double beta_;
double gamma_;
bool can_provide_alpha_;
bool can_provide_beta_;
bool can_provide_gamma_;
};
} // namespace device_orientation
#endif // CHROME_BROWSER_DEVICE_ORIENTATION_ORIENTATION_H_
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