mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-11-03 23:00:58 +00:00
69 lines
2.7 KiB
C++
69 lines
2.7 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/CharacterTypes.h>
|
|
#include <AK/TypeCasts.h>
|
|
#include <AK/Utf8View.h>
|
|
#include <LibWeb/Layout/Box.h>
|
|
#include <LibWeb/Layout/BreakNode.h>
|
|
#include <LibWeb/Layout/LineBox.h>
|
|
#include <LibWeb/Layout/Node.h>
|
|
#include <LibWeb/Layout/TextNode.h>
|
|
|
|
namespace Web::Layout {
|
|
|
|
void LineBox::add_fragment(Node const& layout_node, int start, int length, CSSPixels leading_size, CSSPixels trailing_size, CSSPixels leading_margin, CSSPixels trailing_margin, CSSPixels content_width, CSSPixels content_height, CSSPixels border_box_top, CSSPixels border_box_bottom, LineBoxFragment::Type fragment_type)
|
|
{
|
|
bool text_align_is_justify = layout_node.computed_values().text_align() == CSS::TextAlign::Justify;
|
|
if (!text_align_is_justify && !m_fragments.is_empty() && &m_fragments.last().layout_node() == &layout_node) {
|
|
// The fragment we're adding is from the last Layout::Node on the line.
|
|
// Expand the last fragment instead of adding a new one with the same Layout::Node.
|
|
m_fragments.last().m_length = (start - m_fragments.last().m_start) + length;
|
|
m_fragments.last().set_width(m_fragments.last().width() + content_width);
|
|
} else {
|
|
CSSPixels x_offset = leading_margin + leading_size + m_width;
|
|
CSSPixels y_offset = 0.0f;
|
|
m_fragments.append(LineBoxFragment { layout_node, start, length, CSSPixelPoint(x_offset, y_offset), CSSPixelSize(content_width, content_height), border_box_top, border_box_bottom, fragment_type });
|
|
}
|
|
m_width += leading_margin + leading_size + content_width + trailing_size + trailing_margin;
|
|
}
|
|
|
|
void LineBox::trim_trailing_whitespace()
|
|
{
|
|
while (!m_fragments.is_empty() && m_fragments.last().is_justifiable_whitespace()) {
|
|
auto fragment = m_fragments.take_last();
|
|
m_width -= fragment.width().value();
|
|
}
|
|
|
|
if (m_fragments.is_empty())
|
|
return;
|
|
|
|
auto& last_fragment = m_fragments.last();
|
|
auto last_text = last_fragment.text();
|
|
if (last_text.is_null())
|
|
return;
|
|
|
|
while (last_fragment.length()) {
|
|
auto last_character = last_text[last_fragment.length() - 1];
|
|
if (!is_ascii_space(last_character))
|
|
break;
|
|
|
|
int last_character_width = last_fragment.layout_node().font().glyph_width(last_character);
|
|
last_fragment.m_length -= 1;
|
|
last_fragment.set_width(last_fragment.width() - last_character_width);
|
|
m_width -= last_character_width;
|
|
}
|
|
}
|
|
|
|
bool LineBox::is_empty_or_ends_in_whitespace() const
|
|
{
|
|
if (m_fragments.is_empty())
|
|
return true;
|
|
|
|
return m_fragments.last().ends_in_whitespace();
|
|
}
|
|
|
|
}
|