#include "config.h"
#include "FloatRect.h"
#include "FloatConversion.h"
#include "IntRect.h"
#include <algorithm>
#include <math.h>
using std::max;
using std::min;
namespace WebCore {
FloatRect::FloatRect(const IntRect& r) : m_location(r.location()), m_size(r.size())
{
}
FloatRect FloatRect::narrowPrecision(double x, double y, double width, double height)
{
return FloatRect(narrowPrecisionToFloat(x), narrowPrecisionToFloat(y), narrowPrecisionToFloat(width), narrowPrecisionToFloat(height));
}
bool FloatRect::intersects(const FloatRect& other) const
{
return !isEmpty() && !other.isEmpty()
&& x() < other.right() && other.x() < right()
&& y() < other.bottom() && other.y() < bottom();
}
bool FloatRect::contains(const FloatRect& other) const
{
return x() <= other.x() && right() >= other.right()
&& y() <= other.y() && bottom() >= other.bottom();
}
void FloatRect::intersect(const FloatRect& other)
{
float l = max(x(), other.x());
float t = max(y(), other.y());
float r = min(right(), other.right());
float b = min(bottom(), other.bottom());
if (l >= r || t >= b) {
l = 0;
t = 0;
r = 0;
b = 0;
}
m_location.setX(l);
m_location.setY(t);
m_size.setWidth(r - l);
m_size.setHeight(b - t);
}
void FloatRect::unite(const FloatRect& other)
{
if (other.isEmpty())
return;
if (isEmpty()) {
*this = other;
return;
}
float l = min(x(), other.x());
float t = min(y(), other.y());
float r = max(right(), other.right());
float b = max(bottom(), other.bottom());
m_location.setX(l);
m_location.setY(t);
m_size.setWidth(r - l);
m_size.setHeight(b - t);
}
void FloatRect::scale(float s)
{
m_location.setX(x() * s);
m_location.setY(y() * s);
m_size.setWidth(width() * s);
m_size.setHeight(height() * s);
}
IntRect enclosingIntRect(const FloatRect& rect)
{
int l = static_cast<int>(floorf(rect.x()));
int t = static_cast<int>(floorf(rect.y()));
int r = static_cast<int>(ceilf(rect.right()));
int b = static_cast<int>(ceilf(rect.bottom()));
return IntRect(l, t, r - l, b - t);
}
FloatRect mapRect(const FloatRect& r, const FloatRect& srcRect, const FloatRect& destRect)
{
if (srcRect.width() == 0 || srcRect.height() == 0)
return FloatRect();
float widthScale = destRect.width() / srcRect.width();
float heightScale = destRect.height() / srcRect.height();
return FloatRect(destRect.x() + (r.x() - srcRect.x()) * widthScale,
destRect.y() + (r.y() - srcRect.y()) * heightScale,
r.width() * widthScale, r.height() * heightScale);
}
}