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87 lines
2.6 KiB
C++
87 lines
2.6 KiB
C++
/*
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* Copyright (c) 2018-2020, 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 <LibGfx/Forward.h>
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#include <LibGfx/Rect.h>
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#include <LibWeb/Forward.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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enum class Type {
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Normal,
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Leading,
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Trailing,
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};
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LineBoxFragment(Node const& layout_node, int start, int length, Gfx::FloatPoint const& offset, Gfx::FloatSize const& size, float border_box_top, float border_box_bottom, Type type)
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: m_layout_node(layout_node)
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, m_start(start)
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, m_length(length)
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, m_offset(offset)
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, m_size(size)
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, m_border_box_top(border_box_top)
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, m_border_box_bottom(border_box_bottom)
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, m_type(type)
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{
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}
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Node const& layout_node() const { return m_layout_node; }
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int start() const { return m_start; }
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int length() const { return m_length; }
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const Gfx::FloatRect absolute_rect() const;
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Type type() const { return m_type; }
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Gfx::FloatPoint const& offset() const { return m_offset; }
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void set_offset(Gfx::FloatPoint const& offset) { m_offset = 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(float y) { m_baseline = y; }
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float baseline() const { return m_baseline; }
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Gfx::FloatSize const& size() const { return m_size; }
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void set_width(float width) { m_size.set_width(width); }
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void set_height(float height) { m_size.set_height(height); }
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float width() const { return m_size.width(); }
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float height() const { return m_size.height(); }
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float border_box_height() const { return m_border_box_top + height() + m_border_box_bottom; }
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float border_box_top() const { return m_border_box_top; }
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float border_box_bottom() const { return m_border_box_bottom; }
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float absolute_x() const { return absolute_rect().x(); }
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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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int text_index_at(float x) const;
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Gfx::FloatRect selection_rect(Gfx::Font const&) const;
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float height_of_inline_level_box(LayoutState const&) const;
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float top_of_inline_level_box(LayoutState const&) const;
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float bottom_of_inline_level_box(LayoutState const&) const;
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private:
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Node const& m_layout_node;
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int m_start { 0 };
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int m_length { 0 };
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Gfx::FloatPoint m_offset;
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Gfx::FloatSize m_size;
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float m_border_box_top { 0 };
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float m_border_box_bottom { 0 };
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float m_baseline { 0 };
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Type m_type { Type::Normal };
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};
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}
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