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5338708091
In the ListItemMarkerBox render the correct thing when painting. This covers decimal counting for ordered lists as well as square, disc, and circle for unordered lists. Thus all currently supported list-style-types are displayed correctly. This closes #2059
83 lines
3.3 KiB
C++
83 lines
3.3 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Tobias Christiansen <tobi@tobyase.de>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibGfx/Painter.h>
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#include <LibWeb/Layout/ListItemMarkerBox.h>
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namespace Web::Layout {
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ListItemMarkerBox::ListItemMarkerBox(DOM::Document& document, CSS::ListStyleType style_type, size_t index)
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: Box(document, nullptr, CSS::StyleProperties::create())
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, m_list_style_type(style_type)
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, m_index(index)
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{
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}
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ListItemMarkerBox::~ListItemMarkerBox()
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{
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}
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void ListItemMarkerBox::paint(PaintContext& context, PaintPhase phase)
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{
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if (phase != PaintPhase::Foreground)
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return;
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// FIXME: It would be nicer to not have to go via the parent here to get our inherited style.
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auto color = parent()->computed_values().color();
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auto enclosing = enclosing_int_rect(absolute_rect());
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int marker_width = (int)enclosing.height() / 2;
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Gfx::IntRect marker_rect { 0, 0, marker_width, marker_width };
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marker_rect.center_within(enclosing);
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switch (m_list_style_type) {
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case CSS::ListStyleType::Square:
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context.painter().fill_rect(marker_rect, color);
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break;
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case CSS::ListStyleType::Circle:
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// For some reason for draw_ellipse() the ellipse is outside of the rect while for fill_ellipse() the ellipse is inside.
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// Scale the marker_rect with sqrt(2) to get an ellipse arc (circle) that appears as if it was inside of the marker_rect.
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marker_rect.set_height(marker_rect.height() / 1.41);
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marker_rect.set_width(marker_rect.width() / 1.41);
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marker_rect.center_within(enclosing);
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context.painter().draw_ellipse_intersecting(marker_rect, color);
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break;
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case CSS::ListStyleType::Decimal:
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context.painter().draw_text(enclosing, String::formatted("{}.", m_index), Gfx::TextAlignment::Center);
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break;
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case CSS::ListStyleType::Disc:
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context.painter().fill_ellipse(marker_rect, color);
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break;
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case CSS::ListStyleType::None:
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return;
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default:
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VERIFY_NOT_REACHED();
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}
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}
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}
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