void LayoutRect::uniteEvenIfEmpty(const LayoutRect& other) {
LayoutPoint newLocation(std::min(x(), other.x()), std::min(y(), other.y()));
LayoutPoint newMaxPoint(std::max(maxX(), other.maxX()),
std::max(maxY(), other.maxY()));
m_location = newLocation;
m_size = newMaxPoint - newLocation;
}
void LayoutRect::intersect(const LayoutRect& other)
{
LayoutPoint newLocation(std::max(x(), other.x()), std::max(y(), other.y()));
LayoutPoint newMaxPoint(std::min(maxX(), other.maxX()), std::min(maxY(), other.maxY()));
// Return a clean empty rectangle for non-intersecting cases.
if (newLocation.x() >= newMaxPoint.x() || newLocation.y() >= newMaxPoint.y()) {
newLocation = LayoutPoint(0, 0);
newMaxPoint = LayoutPoint(0, 0);
}
m_location = newLocation;
m_size = newMaxPoint - newLocation;
}
bool LayoutRect::inclusiveIntersect(const LayoutRect& other) {
LayoutPoint newLocation(std::max(x(), other.x()), std::max(y(), other.y()));
LayoutPoint newMaxPoint(std::min(maxX(), other.maxX()),
std::min(maxY(), other.maxY()));
if (newLocation.x() > newMaxPoint.x() || newLocation.y() > newMaxPoint.y()) {
*this = LayoutRect();
return false;
}
m_location = newLocation;
m_size = newMaxPoint - newLocation;
return true;
}
void LayoutRect::uniteIfNonZero(const LayoutRect& other)
{
// Handle empty special cases first.
if (!other.width() && !other.height())
return;
if (!width() && !height()) {
*this = other;
return;
}
LayoutPoint newLocation(std::min(x(), other.x()), std::min(y(), other.y()));
LayoutPoint newMaxPoint(std::max(maxX(), other.maxX()), std::max(maxY(), other.maxY()));
m_location = newLocation;
m_size = newMaxPoint - newLocation;
}
void LayoutRect::unite(const LayoutRect& other)
{
// Handle empty special cases first.
if (other.isEmpty())
return;
if (isEmpty()) {
*this = other;
return;
}
LayoutPoint newLocation(std::min(x(), other.x()), std::min(y(), other.y()));
LayoutPoint newMaxPoint(std::max(maxX(), other.maxX()), std::max(maxY(), other.maxY()));
m_location = newLocation;
m_size = newMaxPoint - newLocation;
}
