85 lines
3.8 KiB
C++
85 lines
3.8 KiB
C++
/*
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* Copyright (C) 2014 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "Color.h"
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#include "LayoutUnit.h"
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#include "RectEdges.h"
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#include "RenderObjectEnums.h"
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#include "RenderStyleConstants.h"
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#include <wtf/OptionSet.h>
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namespace WebCore {
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class RenderStyle;
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class BorderEdge {
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public:
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BorderEdge() = default;
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BorderEdge(float edgeWidth, Color edgeColor, BorderStyle edgeStyle, bool edgeIsTransparent, bool edgeIsPresent, float devicePixelRatio);
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BorderStyle style() const { return m_style; }
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const Color& color() const { return m_color; }
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bool isTransparent() const { return m_isTransparent; }
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bool isPresent() const { return m_isPresent; }
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inline bool hasVisibleColorAndStyle() const { return m_style > BorderStyle::Hidden && !m_isTransparent; }
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inline bool shouldRender() const { return m_isPresent && widthForPainting() && hasVisibleColorAndStyle(); }
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inline bool presentButInvisible() const { return widthForPainting() && !hasVisibleColorAndStyle(); }
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inline float widthForPainting() const { return m_isPresent ? m_flooredToDevicePixelWidth : 0; }
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void getDoubleBorderStripeWidths(LayoutUnit& outerWidth, LayoutUnit& innerWidth) const;
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bool obscuresBackgroundEdge(float scale) const;
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bool obscuresBackground() const;
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private:
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inline float borderWidthInDevicePixel(int logicalPixels) const { return LayoutUnit(logicalPixels / m_devicePixelRatio).toFloat(); }
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Color m_color;
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LayoutUnit m_width;
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float m_flooredToDevicePixelWidth { 0 };
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float m_devicePixelRatio { 1 };
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BorderStyle m_style { BorderStyle::Hidden };
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bool m_isTransparent { false };
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bool m_isPresent { false };
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};
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using BorderEdges = RectEdges<BorderEdge>;
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BorderEdges borderEdges(const RenderStyle&, float deviceScaleFactor, bool includeLogicalLeftEdge = true, bool includeLogicalRightEdge = true);
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inline bool edgesShareColor(const BorderEdge& firstEdge, const BorderEdge& secondEdge) { return firstEdge.color() == secondEdge.color(); }
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inline BoxSideFlag edgeFlagForSide(BoxSide side) { return static_cast<BoxSideFlag>(1 << static_cast<unsigned>(side)); }
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inline bool includesEdge(OptionSet<BoxSideFlag> flags, BoxSide side) { return flags.contains(edgeFlagForSide(side)); }
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inline bool includesAdjacentEdges(OptionSet<BoxSideFlag> flags)
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{
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return flags.containsAll({ BoxSideFlag::Top, BoxSideFlag::Right })
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|| flags.containsAll({ BoxSideFlag::Right, BoxSideFlag::Bottom })
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|| flags.containsAll({ BoxSideFlag::Bottom, BoxSideFlag::Left })
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|| flags.containsAll({ BoxSideFlag::Left, BoxSideFlag::Top });
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}
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} // namespace WebCore
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