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