ladybird/Userland/Libraries/LibWeb/Painting/MarkerPaintable.cpp

87 lines
2.6 KiB
C++

/*
* Copyright (c) 2018-2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibGfx/AntiAliasingPainter.h>
#include <LibGfx/StylePainter.h>
#include <LibWeb/Layout/ListItemMarkerBox.h>
#include <LibWeb/Painting/MarkerPaintable.h>
namespace Web::Painting {
NonnullRefPtr<MarkerPaintable> MarkerPaintable::create(Layout::ListItemMarkerBox const& layout_box)
{
return adopt_ref(*new MarkerPaintable(layout_box));
}
MarkerPaintable::MarkerPaintable(Layout::ListItemMarkerBox const& layout_box)
: PaintableBox(layout_box)
{
}
Layout::ListItemMarkerBox const& MarkerPaintable::layout_box() const
{
return static_cast<Layout::ListItemMarkerBox const&>(layout_node());
}
void MarkerPaintable::paint(PaintContext& context, PaintPhase phase) const
{
if (phase != PaintPhase::Foreground)
return;
auto enclosing = enclosing_int_rect(absolute_rect());
int marker_width = (int)enclosing.height() / 2;
if (auto const* list_style_image = layout_box().list_style_image()) {
Gfx::IntRect image_rect {
0, 0,
list_style_image->natural_width().value_or(marker_width),
list_style_image->natural_height().value_or(marker_width)
};
image_rect.center_within(enclosing);
list_style_image->resolve_for_size(layout_box(), image_rect.size().to_type<float>());
list_style_image->paint(context, image_rect, computed_values().image_rendering());
return;
}
Gfx::IntRect marker_rect { 0, 0, marker_width, marker_width };
marker_rect.center_within(enclosing);
auto color = computed_values().color();
Gfx::AntiAliasingPainter aa_painter { context.painter() };
switch (layout_box().list_style_type()) {
case CSS::ListStyleType::Square:
context.painter().fill_rect(marker_rect, color);
break;
case CSS::ListStyleType::Circle:
aa_painter.draw_ellipse(marker_rect, color, 1);
break;
case CSS::ListStyleType::Disc:
aa_painter.fill_ellipse(marker_rect, color);
break;
case CSS::ListStyleType::Decimal:
case CSS::ListStyleType::DecimalLeadingZero:
case CSS::ListStyleType::LowerAlpha:
case CSS::ListStyleType::LowerLatin:
case CSS::ListStyleType::LowerRoman:
case CSS::ListStyleType::UpperAlpha:
case CSS::ListStyleType::UpperLatin:
case CSS::ListStyleType::UpperRoman:
if (layout_box().text().is_null())
break;
context.painter().draw_text(enclosing, layout_box().text(), Gfx::TextAlignment::Center);
break;
case CSS::ListStyleType::None:
return;
default:
VERIFY_NOT_REACHED();
}
}
}