blob: bb803dcf7cc36ac4533821e36445442115073abf [file] [log] [blame]
/*
Copyright (C) 1999 Lars Knoll (knoll@kde.org)
Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
Copyright (C) 2011 Rik Cabanier (cabanier@adobe.com)
Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved.
Copyright (C) 2012 Motorola Mobility, Inc. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "platform/LengthFunctions.h"
#include "platform/LayoutUnit.h"
#include "platform/LengthSize.h"
namespace blink {
int intValueForLength(const Length& length, LayoutUnit maximumValue)
{
return static_cast<int>(valueForLength(length, maximumValue));
}
float floatValueForLength(const Length& length, float maximumValue)
{
switch (length.type()) {
case Fixed:
return length.getFloatValue();
case Percent:
return static_cast<float>(maximumValue * length.percent() / 100.0f);
case FillAvailable:
case Auto:
return static_cast<float>(maximumValue);
case Calculated:
return length.nonNanCalculatedValue(maximumValue);
case Intrinsic:
case MinIntrinsic:
case MinContent:
case MaxContent:
case FitContent:
case ExtendToZoom:
case DeviceWidth:
case DeviceHeight:
case MaxSizeNone:
ASSERT_NOT_REACHED();
return 0;
}
ASSERT_NOT_REACHED();
return 0;
}
LayoutUnit minimumValueForLength(const Length& length, LayoutUnit maximumValue)
{
switch (length.type()) {
case Fixed:
return length.value();
case Percent:
// Don't remove the extra cast to float. It is needed for rounding on 32-bit Intel machines that use the FPU stack.
return static_cast<float>(maximumValue * length.percent() / 100.0f);
case Calculated:
return length.nonNanCalculatedValue(maximumValue);
case FillAvailable:
case Auto:
return 0;
case Intrinsic:
case MinIntrinsic:
case MinContent:
case MaxContent:
case FitContent:
case ExtendToZoom:
case DeviceWidth:
case DeviceHeight:
case MaxSizeNone:
ASSERT_NOT_REACHED();
return 0;
}
ASSERT_NOT_REACHED();
return 0;
}
LayoutUnit roundedMinimumValueForLength(const Length& length, LayoutUnit maximumValue)
{
if (length.type() == Percent)
return static_cast<LayoutUnit>(round(maximumValue * length.percent() / 100.0f));
return minimumValueForLength(length, maximumValue);
}
LayoutUnit valueForLength(const Length& length, LayoutUnit maximumValue)
{
switch (length.type()) {
case Fixed:
case Percent:
case Calculated:
return minimumValueForLength(length, maximumValue);
case FillAvailable:
case Auto:
return maximumValue;
case Intrinsic:
case MinIntrinsic:
case MinContent:
case MaxContent:
case FitContent:
case ExtendToZoom:
case DeviceWidth:
case DeviceHeight:
case MaxSizeNone:
ASSERT_NOT_REACHED();
return 0;
}
ASSERT_NOT_REACHED();
return 0;
}
FloatSize floatSizeForLengthSize(const LengthSize& lengthSize, const FloatSize& boxSize)
{
return FloatSize(floatValueForLength(lengthSize.width(), boxSize.width()), floatValueForLength(lengthSize.height(), boxSize.height()));
}
} // namespace blink