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79 lines
2.9 KiB
C++
79 lines
2.9 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.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 <LibGC/Ptr.h>
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#include <LibGfx/Rect.h>
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#include <LibGfx/TextLayout.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/PixelUnits.h>
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namespace Web::Layout {
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class LineBoxFragment {
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friend class LineBox;
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public:
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LineBoxFragment(Node const& layout_node, size_t start, size_t length, CSSPixels inline_offset, CSSPixels block_offset, CSSPixels inline_length, CSSPixels block_length, CSSPixels border_box_top, CSS::Direction, CSS::WritingMode, RefPtr<Gfx::GlyphRun>);
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Node const& layout_node() const { return m_layout_node; }
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size_t start() const { return m_start; }
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size_t length() const { return m_length; }
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CSSPixelPoint offset() const;
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CSSPixels inline_offset() const { return m_inline_offset; }
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CSSPixels block_offset() const { return m_block_offset; }
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void set_inline_offset(CSSPixels inline_offset) { m_inline_offset = inline_offset; }
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void set_block_offset(CSSPixels block_offset) { m_block_offset = block_offset; }
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// The baseline of a fragment is the number of pixels from the top to the text baseline.
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void set_baseline(CSSPixels y) { m_baseline = y; }
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CSSPixels baseline() const { return m_baseline; }
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CSSPixelSize size() const;
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CSSPixels width() const { return size().width(); }
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CSSPixels height() const { return size().height(); }
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CSSPixels inline_length() const { return m_inline_length; }
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CSSPixels block_length() const { return m_block_length; }
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void set_inline_length(CSSPixels inline_length) { m_inline_length = inline_length; }
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void set_block_length(CSSPixels block_length) { m_block_length = block_length; }
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CSSPixels border_box_top() const { return m_border_box_top; }
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bool ends_in_whitespace() const;
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bool is_justifiable_whitespace() const;
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StringView text() const;
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bool is_atomic_inline() const;
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RefPtr<Gfx::GlyphRun> glyph_run() const { return m_glyph_run; }
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CSS::WritingMode writing_mode() const { return m_writing_mode; }
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void append_glyph_run(RefPtr<Gfx::GlyphRun> const&, CSSPixels run_width);
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private:
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CSS::Direction resolve_glyph_run_direction(Gfx::GlyphRun::TextType) const;
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void append_glyph_run_ltr(RefPtr<Gfx::GlyphRun> const&, CSSPixels run_width);
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void append_glyph_run_rtl(RefPtr<Gfx::GlyphRun> const&, CSSPixels run_width);
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GC::Ref<Node const> m_layout_node;
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size_t m_start { 0 };
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size_t m_length { 0 };
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CSSPixels m_inline_offset;
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CSSPixels m_block_offset;
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CSSPixels m_inline_length;
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CSSPixels m_block_length;
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CSSPixels m_border_box_top { 0 };
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CSSPixels m_baseline { 0 };
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CSS::Direction m_direction { CSS::Direction::Ltr };
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CSS::WritingMode m_writing_mode { CSS::WritingMode::HorizontalTb };
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RefPtr<Gfx::GlyphRun> m_glyph_run;
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float m_insert_position { 0 };
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CSS::Direction m_current_insert_direction { CSS::Direction::Ltr };
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};
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}
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