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/*
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/Layout/InlineFormattingContext.h>
namespace Web::Layout {
class LineBuilder {
AK_MAKE_NONCOPYABLE(LineBuilder);
AK_MAKE_NONMOVABLE(LineBuilder);
public:
LineBuilder(InlineFormattingContext&, LayoutState&, LayoutMode);
~LineBuilder();
void break_line();
void append_box(Box const&, float leading_size, float trailing_size, float leading_margin, float trailing_margin);
void append_text_chunk(TextNode const&, size_t offset_in_node, size_t length_in_node, float leading_size, float trailing_size, float leading_margin, float trailing_margin, float content_width, float content_height);
// Returns whether a line break occurred.
bool break_if_needed(float next_item_width)
{
if (should_break(next_item_width)) {
break_line();
return true;
}
return false;
}
float available_width_for_current_line() const { return m_available_width_for_current_line; }
void update_last_line();
void remove_last_line_if_empty();
float current_y() const { return m_current_y; }
void adjust_last_line_after_inserting_floating_box(Badge<BlockFormattingContext>, CSS::Float, float space_used_by_float);
private:
void begin_new_line(bool increment_y);
bool should_break(float next_item_width);
LineBox& ensure_last_line_box();
InlineFormattingContext& m_context;
LayoutState& m_layout_state;
LayoutState::UsedValues& m_containing_block_state;
LayoutMode m_layout_mode {};
float m_available_width_for_current_line { 0 };
float m_current_y { 0 };
float m_max_height_on_current_line { 0 };
bool m_last_line_needs_update { false };
};
}
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