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LibWeb: Add support for repeating conic gradient in Skia painter

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Aliaksandr Kalenik 2024-07-15 14:52:47 +03:00 • committed by Alexander Kalenik
parent 1ad4cd55b5
commit 247a07b606
Notes: sideshowbarker 2024-07-16 20:39:14 +09:00
1 changed files with 24 additions and 4 deletions
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28
Userland/Libraries/LibWeb/Painting/DisplayListPlayerSkia.cpp
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@ -1165,7 +1165,29 @@ CommandResult DisplayListPlayerSkia::paint_conic_gradient(PaintConicGradient con
auto const& conic_gradient_data = command.conic_gradient_data;
auto const& color_stop_list = conic_gradient_data.color_stops.list;
auto color_stop_list = conic_gradient_data.color_stops.list;
auto const& repeat_length = conic_gradient_data.color_stops.repeat_length;
auto expand_repeat_length = [&] {
Vector<Gfx::ColorStop> color_stop_list_with_expanded_repeat;
size_t repeat_count = 0;
while (true) {
for (auto stop : color_stop_list) {
stop.position += repeat_length.value() * repeat_count;
if (stop.position > 1.0f)
return color_stop_list_with_expanded_repeat;
color_stop_list_with_expanded_repeat.append(stop);
}
repeat_count++;
if (repeat_count > 1000) {
// Crash instead of being stuck in infinite loop
VERIFY_NOT_REACHED();
}
}
VERIFY_NOT_REACHED();
};
if (repeat_length.has_value())
color_stop_list = expand_repeat_length();
VERIFY(!color_stop_list.is_empty());
auto stops_with_replaced_transition_hints = replace_transition_hints_with_normal_color_stops(color_stop_list);
@ -1184,9 +1206,7 @@ CommandResult DisplayListPlayerSkia::paint_conic_gradient(PaintConicGradient con
SkMatrix matrix;
matrix.setRotate(-90 + conic_gradient_data.start_angle, center.x(), center.y());
// FIXME: Account for repeat length
auto shader = SkGradientShader::MakeSweep(center.x(), center.y(), colors.data(), positions.data(), positions.size(), 0, &matrix);
auto shader = SkGradientShader::MakeSweep(center.x(), center.y(), colors.data(), positions.data(), positions.size(), SkTileMode::kRepeat, 0, 360, 0, &matrix);
SkPaint paint;
paint.setShader(shader);