#include "config.h"
#include "BorderEdge.h"
#include "Color.h"
#include "LayoutUnit.h"
#include "RenderObject.h"
#include "RenderStyle.h"
namespace WebCore {
BorderEdge::BorderEdge(float edgeWidth, Color edgeColor, EBorderStyle edgeStyle, bool edgeIsTransparent, bool edgeIsPresent, float devicePixelRatio)
: m_width(edgeWidth)
, m_color(edgeColor)
, m_style(edgeStyle)
, m_isTransparent(edgeIsTransparent)
, m_isPresent(edgeIsPresent)
, m_devicePixelRatio(devicePixelRatio)
{
if (edgeStyle == DOUBLE && edgeWidth < borderWidthInDevicePixel(3))
m_style = SOLID;
m_flooredToDevicePixelWidth = floorf(edgeWidth * devicePixelRatio) / devicePixelRatio;
}
void BorderEdge::getBorderEdgeInfo(BorderEdge edges[], const RenderStyle& style, float deviceScaleFactor, bool includeLogicalLeftEdge, bool includeLogicalRightEdge)
{
bool horizontal = style.isHorizontalWritingMode();
edges[BSTop] = BorderEdge(style.borderTopWidth(), style.visitedDependentColor(CSSPropertyBorderTopColor), style.borderTopStyle(), style.borderTopIsTransparent(),
horizontal || includeLogicalLeftEdge, deviceScaleFactor);
edges[BSRight] = BorderEdge(style.borderRightWidth(), style.visitedDependentColor(CSSPropertyBorderRightColor), style.borderRightStyle(), style.borderRightIsTransparent(),
!horizontal || includeLogicalRightEdge, deviceScaleFactor);
edges[BSBottom] = BorderEdge(style.borderBottomWidth(), style.visitedDependentColor(CSSPropertyBorderBottomColor), style.borderBottomStyle(), style.borderBottomIsTransparent(),
horizontal || includeLogicalRightEdge, deviceScaleFactor);
edges[BSLeft] = BorderEdge(style.borderLeftWidth(), style.visitedDependentColor(CSSPropertyBorderLeftColor), style.borderLeftStyle(), style.borderLeftIsTransparent(),
!horizontal || includeLogicalLeftEdge, deviceScaleFactor);
}
bool BorderEdge::obscuresBackgroundEdge(float scale) const
{
if (!m_isPresent || m_isTransparent || (m_width * scale) < borderWidthInDevicePixel(2) || m_color.hasAlpha() || m_style == BHIDDEN)
return false;
if (m_style == DOTTED || m_style == DASHED)
return false;
if (m_style == DOUBLE)
return m_width >= scale * borderWidthInDevicePixel(5);
return true;
}
bool BorderEdge::obscuresBackground() const
{
if (!m_isPresent || m_isTransparent || m_color.hasAlpha() || m_style == BHIDDEN)
return false;
if (m_style == DOTTED || m_style == DASHED || m_style == DOUBLE)
return false;
return true;
}
void BorderEdge::getDoubleBorderStripeWidths(LayoutUnit& outerWidth, LayoutUnit& innerWidth) const
{
LayoutUnit fullWidth = widthForPainting();
innerWidth = ceilToDevicePixel(fullWidth * 2 / 3, m_devicePixelRatio);
outerWidth = floorToDevicePixel(fullWidth / 3, m_devicePixelRatio);
}
}