d32630e17b
After performing a required line break, and the next text chunk is all collapsible whitespace, simply discard the whitespace.
63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
/*
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* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibWeb/Layout/InlineFormattingContext.h>
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namespace Web::Layout {
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class LineBuilder {
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AK_MAKE_NONCOPYABLE(LineBuilder);
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AK_MAKE_NONMOVABLE(LineBuilder);
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public:
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LineBuilder(InlineFormattingContext&, FormattingState&, LayoutMode);
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~LineBuilder();
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void break_line();
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void append_box(Box const&, float leading_size, float trailing_size, float leading_margin, float trailing_margin);
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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);
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// Returns whether a line break occurred.
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bool break_if_needed(LayoutMode layout_mode, float next_item_width, bool should_force_break)
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{
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if (should_break(layout_mode, next_item_width, should_force_break)) {
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break_line();
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return true;
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}
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return false;
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}
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float available_width_for_current_line() const { return m_available_width_for_current_line; }
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void update_last_line();
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void remove_last_line_if_empty();
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float current_y() const { return m_current_y; }
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void adjust_last_line_after_inserting_floating_box(Badge<BlockFormattingContext>, CSS::Float, float space_used_by_float);
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private:
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void begin_new_line(bool increment_y);
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bool should_break(LayoutMode, float next_item_width, bool should_force_break);
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LineBox& ensure_last_line_box();
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InlineFormattingContext& m_context;
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FormattingState& m_formatting_state;
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FormattingState::NodeState& m_containing_block_state;
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LayoutMode m_layout_mode {};
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float m_available_width_for_current_line { 0 };
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float m_current_y { 0 };
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float m_max_height_on_current_line { 0 };
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bool m_last_line_needs_update { false };
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};
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}
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