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LibWeb: Use rounding instead of enclosing_int_rect() when painting

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By using enclosing_int_rect(), borders and backgrounds of boxes were
sometimes 1 pixel off, making things slightly larger than they should
be. Fix this by using to_rounded() instead of enclosing_int_rect().

There's definitely more of these type of issues lurking in the code,
and we'll get to them in time.
This commit is contained in:
Andreas Kling 2022-03-29 15:43:28 +02:00
parent e1cf51b0bd
commit 0de488749f
5 changed files with 18 additions and 20 deletions
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4
Userland/Libraries/LibWeb/Painting/BorderPainting.cpp
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@ -43,9 +43,7 @@ BorderRadiusData normalized_border_radius_data(Layout::Node const& node, Gfx::Fl
void paint_border(PaintContext& context, BorderEdge edge, Gfx::FloatRect const& a_rect, BorderRadiusData const& border_radius_data, BordersData const& borders_data)
{
// FIXME: This is a hack that snaps the incoming rect to integer pixel values before painting each side.
// This needs a more general solution.
auto rect = enclosing_int_rect(a_rect).to_type<float>();
auto rect = a_rect.to_rounded<float>();
const auto& border_data = [&] {
switch (edge) {