mirror of
https://github.com/RGBCube/serenity
synced 2025-05-31 10:08:12 +00:00
71ca857b67
Before this change, we'd always insert one line box fragment, even when a float was taking up too much space on the line, and the fragment didn't actually fit. We now perform line breaks until we have enough space between floats. This fixes many page layouts where we'd previously see small fragments of inline content outside the right edge of the containing block.
62 lines
1.8 KiB
C++
62 lines
1.8 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&, LayoutState&);
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~LineBuilder();
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void break_line(Optional<float> next_item_width = {});
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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(float next_item_width)
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{
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if (should_break(next_item_width)) {
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break_line(next_item_width);
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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(float next_item_width);
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LineBox& ensure_last_line_box();
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InlineFormattingContext& m_context;
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LayoutState& m_layout_state;
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LayoutState::UsedValues& m_containing_block_state;
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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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