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LibGfx: Add method for calculating square aspect ratio end point

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Zyper 2021-08-24 23:39:07 +02:00 • committed by Brian Gianforcaro
parent 88a31f3bac
commit 12e76bb3df
2 changed files with 13 additions and 0 deletions
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11
Userland/Libraries/LibGfx/Point.cpp
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@ -19,6 +19,17 @@ void Point<T>::constrain(Rect<T> const& rect)
m_y = AK::clamp<T>(y(), rect.top(), rect.bottom());
}
template<typename T>
[[nodiscard]] Point<T> Point<T>::end_point_for_square_aspect_ratio(Point<T> const& previous_end_point) const
{
const T dx = previous_end_point.x() - x();
const T dy = previous_end_point.y() - y();
const T x_sign = dx >= 0 ? 1 : -1;
const T y_sign = dy >= 0 ? 1 : -1;
const T abs_size = AK::max(AK::abs(dx), AK::abs(dy));
return { x() + x_sign * abs_size, y() + y_sign * abs_size };
}
template<>
String IntPoint::to_string() const
{