137 lines
4.6 KiB
C++
137 lines
4.6 KiB
C++
/*
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Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
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Copyright (C) 2011 Rik Cabanier (cabanier@adobe.com)
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Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved.
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Copyright (C) 2012 Motorola Mobility, Inc. All rights reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "config.h"
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#include "LengthFunctions.h"
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#include "FloatSize.h"
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#include "LayoutSize.h"
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#include "LengthPoint.h"
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#include "LengthSize.h"
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namespace WebCore {
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int intValueForLength(const Length& length, LayoutUnit maximumValue)
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{
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return static_cast<int>(valueForLength(length, maximumValue));
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}
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LayoutUnit valueForLength(const Length& length, LayoutUnit maximumValue)
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{
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switch (length.type()) {
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case LengthType::Fixed:
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case LengthType::Percent:
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case LengthType::Calculated:
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return minimumValueForLength(length, maximumValue);
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case LengthType::FillAvailable:
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case LengthType::Auto:
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return maximumValue;
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case LengthType::Relative:
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case LengthType::Intrinsic:
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case LengthType::MinIntrinsic:
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case LengthType::MinContent:
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case LengthType::MaxContent:
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case LengthType::FitContent:
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case LengthType::Undefined:
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ASSERT_NOT_REACHED();
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return 0;
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}
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ASSERT_NOT_REACHED();
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return 0;
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}
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// FIXME: when subpixel layout is supported this copy of floatValueForLength() can be removed. See bug 71143.
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float floatValueForLength(const Length& length, LayoutUnit maximumValue)
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{
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switch (length.type()) {
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case LengthType::Fixed:
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return length.value();
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case LengthType::Percent:
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return static_cast<float>(maximumValue * length.percent() / 100.0f);
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case LengthType::FillAvailable:
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case LengthType::Auto:
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return static_cast<float>(maximumValue);
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case LengthType::Calculated:
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return length.nonNanCalculatedValue(maximumValue);
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case LengthType::Relative:
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case LengthType::Intrinsic:
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case LengthType::MinIntrinsic:
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case LengthType::MinContent:
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case LengthType::MaxContent:
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case LengthType::FitContent:
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case LengthType::Undefined:
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ASSERT_NOT_REACHED();
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return 0;
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}
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ASSERT_NOT_REACHED();
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return 0;
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}
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float floatValueForLength(const Length& length, float maximumValue)
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{
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switch (length.type()) {
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case LengthType::Fixed:
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return length.value();
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case LengthType::Percent:
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return static_cast<float>(maximumValue * length.percent() / 100.0f);
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case LengthType::FillAvailable:
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case LengthType::Auto:
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return static_cast<float>(maximumValue);
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case LengthType::Calculated:
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return length.nonNanCalculatedValue(maximumValue);
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case LengthType::Relative:
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case LengthType::Intrinsic:
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case LengthType::MinIntrinsic:
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case LengthType::MinContent:
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case LengthType::MaxContent:
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case LengthType::FitContent:
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case LengthType::Undefined:
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ASSERT_NOT_REACHED();
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return 0;
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}
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ASSERT_NOT_REACHED();
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return 0;
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}
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LayoutSize sizeForLengthSize(const LengthSize& length, const LayoutSize& maximumValue)
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{
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return { valueForLength(length.width, maximumValue.width()), valueForLength(length.height, maximumValue.height()) };
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}
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LayoutPoint pointForLengthPoint(const LengthPoint& lengthPoint, const LayoutSize& maximumValue)
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{
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return { valueForLength(lengthPoint.x(), maximumValue.width()), valueForLength(lengthPoint.y(), maximumValue.height()) };
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}
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FloatSize floatSizeForLengthSize(const LengthSize& lengthSize, const FloatSize& boxSize)
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{
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return { floatValueForLength(lengthSize.width, boxSize.width()), floatValueForLength(lengthSize.height, boxSize.height()) };
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}
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FloatPoint floatPointForLengthPoint(const LengthPoint& lengthPoint, const FloatSize& boxSize)
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{
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return { floatValueForLength(lengthPoint.x(), boxSize.width()), floatValueForLength(lengthPoint.y(), boxSize.height()) };
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}
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} // namespace WebCore
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