1/*
2 * Copyright (C) 2003, 2006 Apple Computer, Inc.  All rights reserved.
3 * Copyright (C) 2005 Nokia.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "config.h"
28#include "platform/geometry/FloatSize.h"
29
30#include "platform/FloatConversion.h"
31#include "platform/geometry/IntSize.h"
32#include "platform/geometry/LayoutSize.h"
33#include <limits>
34#include <math.h>
35
36namespace blink {
37
38FloatSize::FloatSize(const LayoutSize& size)
39    : m_width(size.width().toFloat())
40    , m_height(size.height().toFloat())
41{
42}
43
44float FloatSize::diagonalLength() const
45{
46    return sqrtf(diagonalLengthSquared());
47}
48
49bool FloatSize::isZero() const
50{
51    return fabs(m_width) < std::numeric_limits<float>::epsilon() && fabs(m_height) < std::numeric_limits<float>::epsilon();
52}
53
54bool FloatSize::isExpressibleAsIntSize() const
55{
56    return isWithinIntRange(m_width) && isWithinIntRange(m_height);
57}
58
59FloatSize FloatSize::narrowPrecision(double width, double height)
60{
61    return FloatSize(narrowPrecisionToFloat(width), narrowPrecisionToFloat(height));
62}
63
64}
65