1/*
2 Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 Copyright (C) 2006-2017 Apple Inc. All rights reserved.
4 Copyright (C) 2011 Rik Cabanier (cabanier@adobe.com)
5 Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved.
6 Copyright (C) 2012 Motorola Mobility, Inc. All rights reserved.
7
8 This library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Library General Public
10 License as published by the Free Software Foundation; either
11 version 2 of the License, or (at your option) any later version.
12
13 This library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Library General Public License for more details.
17
18 You should have received a copy of the GNU Library General Public License
19 along with this library; see the file COPYING.LIB. If not, write to
20 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA.
22*/
23
24#pragma once
25
26#include "LayoutUnit.h"
27#include "Length.h"
28
29namespace WebCore {
30
31class FloatSize;
32class LayoutSize;
33class RenderView;
34
35struct Length;
36struct LengthSize;
37
38int minimumIntValueForLength(const Length&, LayoutUnit maximumValue);
39int intValueForLength(const Length&, LayoutUnit maximumValue);
40LayoutUnit minimumValueForLength(const Length&, LayoutUnit maximumValue);
41WEBCORE_EXPORT LayoutUnit valueForLength(const Length&, LayoutUnit maximumValue);
42LayoutSize sizeForLengthSize(const LengthSize&, const LayoutSize& maximumValue);
43float floatValueForLength(const Length&, LayoutUnit maximumValue);
44WEBCORE_EXPORT float floatValueForLength(const Length&, float maximumValue);
45FloatSize floatSizeForLengthSize(const LengthSize&, const FloatSize&);
46
47inline LayoutUnit minimumValueForLength(const Length& length, LayoutUnit maximumValue)
48{
49 switch (length.type()) {
50 case Fixed:
51 return length.value();
52 case Percent:
53 // Don't remove the extra cast to float. It is needed for rounding on 32-bit Intel machines that use the FPU stack.
54 return LayoutUnit(static_cast<float>(maximumValue * length.percent() / 100.0f));
55 case Calculated:
56 return length.nonNanCalculatedValue(maximumValue);
57 case FillAvailable:
58 case Auto:
59 return 0;
60 case Relative:
61 case Intrinsic:
62 case MinIntrinsic:
63 case MinContent:
64 case MaxContent:
65 case FitContent:
66 case Undefined:
67 break;
68 }
69 ASSERT_NOT_REACHED();
70 return 0;
71}
72
73inline int minimumIntValueForLength(const Length& length, LayoutUnit maximumValue)
74{
75 return static_cast<int>(minimumValueForLength(length, maximumValue));
76}
77
78} // namespace WebCore
79