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WindowServer: Apply the backing bitmap's scale when alpha hit-testing

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Fixes #5390
This commit is contained in:
Tom 2021-02-17 16:12:05 -07:00 • committed by Andreas Kling
parent b55c9f6bba
commit 6af4d35e8e
2 changed files with 6 additions and 5 deletions
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8
Userland/Services/WindowServer/WindowFrame.cpp
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@ -560,16 +560,16 @@ bool WindowFrame::hit_test(const Gfx::IntPoint& point) const
auto relative_point = point.translated(-render_rect().location());
if (point.y() < window_rect.y()) {
if (m_top_bottom)
alpha = m_top_bottom->get_pixel(relative_point).alpha();
alpha = m_top_bottom->get_pixel(relative_point * m_top_bottom->scale()).alpha();
} else if (point.y() > window_rect.bottom()) {
if (m_top_bottom)
alpha = m_top_bottom->get_pixel(relative_point.x(), m_bottom_y + point.y() - window_rect.bottom() - 1).alpha();
alpha = m_top_bottom->get_pixel(relative_point.x() * m_top_bottom->scale(), m_bottom_y * m_top_bottom->scale() + point.y() - window_rect.bottom() - 1).alpha();
} else if (point.x() < window_rect.x()) {
if (m_left_right)
alpha = m_left_right->get_pixel(relative_point.x(), relative_point.y() - m_bottom_y).alpha();
alpha = m_left_right->get_pixel(relative_point.x() * m_left_right->scale(), (relative_point.y() - m_bottom_y) * m_left_right->scale()).alpha();
} else if (point.x() > window_rect.right()) {
if (m_left_right)
alpha = m_left_right->get_pixel(m_right_x + point.x() - window_rect.right() - 1, relative_point.y() - m_bottom_y).alpha();
alpha = m_left_right->get_pixel(m_right_x * m_left_right->scale() + point.x() - window_rect.right() - 1, (relative_point.y() - m_bottom_y) * m_left_right->scale()).alpha();
} else {
return false;
}