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// Copyright (c) 2011 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.
#include <cmath>
#include "content/public/common/page_zoom.h"
namespace content {
const double kMinimumZoomFactor = 0.25;
const double kMaximumZoomFactor = 5.0;
bool ZoomValuesEqual(double value_a, double value_b) {
// Epsilon value for comparing two floating-point zoom values. We don't use
// std::numeric_limits<> because it is too precise for zoom values. Zoom
// values lose precision due to factor/level conversions. A value of 0.001
// is precise enough for zoom value comparisons.
const double epsilon = 0.001;
return (std::fabs(value_a - value_b) <= epsilon);
}
} // namespace content
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