2 Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 Copyright (C) 2006, 2008 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.
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.
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.
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.
25 #include "platform/LengthFunctions.h"
27 #include "platform/LayoutUnit.h"
28 #include "platform/LengthSize.h"
32 int intValueForLength(const Length& length, LayoutUnit maximumValue)
34 return static_cast<int>(valueForLength(length, maximumValue));
37 float floatValueForLength(const Length& length, float maximumValue)
39 switch (length.type()) {
41 return length.getFloatValue();
43 return static_cast<float>(maximumValue * length.percent() / 100.0f);
46 return static_cast<float>(maximumValue);
48 return length.nonNanCalculatedValue(maximumValue);
65 LayoutUnit minimumValueForLength(const Length& length, LayoutUnit maximumValue)
67 switch (length.type()) {
69 return length.value();
71 // Don't remove the extra cast to float. It is needed for rounding on 32-bit Intel machines that use the FPU stack.
72 return static_cast<float>(maximumValue * length.percent() / 100.0f);
74 return length.nonNanCalculatedValue(maximumValue);
94 LayoutUnit roundedMinimumValueForLength(const Length& length, LayoutUnit maximumValue)
96 if (length.type() == Percent)
97 return static_cast<LayoutUnit>(round(maximumValue * length.percent() / 100.0f));
98 return minimumValueForLength(length, maximumValue);
101 LayoutUnit valueForLength(const Length& length, LayoutUnit maximumValue)
103 switch (length.type()) {
107 return minimumValueForLength(length, maximumValue);
120 ASSERT_NOT_REACHED();
123 ASSERT_NOT_REACHED();
127 FloatSize floatSizeForLengthSize(const LengthSize& lengthSize, const FloatSize& boxSize)
129 return FloatSize(floatValueForLength(lengthSize.width(), boxSize.width()), floatValueForLength(lengthSize.height(), boxSize.height()));