#include "config.h"
#include "ShadowData.h"
#include "LayoutRect.h"
namespace WebCore {
ShadowData::ShadowData(const ShadowData& o)
: m_location(o.m_location)
, m_radius(o.m_radius)
, m_spread(o.m_spread)
, m_color(o.m_color)
, m_style(o.m_style)
, m_isWebkitBoxShadow(o.m_isWebkitBoxShadow)
, m_next(o.m_next ? std::make_unique<ShadowData>(*o.m_next) : nullptr)
{
}
bool ShadowData::operator==(const ShadowData& o) const
{
if ((m_next && !o.m_next) || (!m_next && o.m_next)
|| (m_next && o.m_next && *m_next != *o.m_next))
return false;
return m_location == o.m_location
&& m_radius == o.m_radius
&& m_spread == o.m_spread
&& m_style == o.m_style
&& m_color == o.m_color
&& m_isWebkitBoxShadow == o.m_isWebkitBoxShadow;
}
static inline void calculateShadowExtent(const ShadowData* shadow, int additionalOutlineSize, int& shadowLeft, int& shadowRight, int& shadowTop, int& shadowBottom)
{
do {
int extentAndSpread = shadow->paintingExtent() + shadow->spread() + additionalOutlineSize;
if (shadow->style() == Normal) {
shadowLeft = std::min(shadow->x() - extentAndSpread, shadowLeft);
shadowRight = std::max(shadow->x() + extentAndSpread, shadowRight);
shadowTop = std::min(shadow->y() - extentAndSpread, shadowTop);
shadowBottom = std::max(shadow->y() + extentAndSpread, shadowBottom);
}
shadow = shadow->next();
} while (shadow);
}
void ShadowData::adjustRectForShadow(LayoutRect& rect, int additionalOutlineSize) const
{
int shadowLeft = 0;
int shadowRight = 0;
int shadowTop = 0;
int shadowBottom = 0;
calculateShadowExtent(this, additionalOutlineSize, shadowLeft, shadowRight, shadowTop, shadowBottom);
rect.move(shadowLeft, shadowTop);
rect.setWidth(rect.width() - shadowLeft + shadowRight);
rect.setHeight(rect.height() - shadowTop + shadowBottom);
}
void ShadowData::adjustRectForShadow(FloatRect& rect, int additionalOutlineSize) const
{
int shadowLeft = 0;
int shadowRight = 0;
int shadowTop = 0;
int shadowBottom = 0;
calculateShadowExtent(this, additionalOutlineSize, shadowLeft, shadowRight, shadowTop, shadowBottom);
rect.move(shadowLeft, shadowTop);
rect.setWidth(rect.width() - shadowLeft + shadowRight);
rect.setHeight(rect.height() - shadowTop + shadowBottom);
}
}