1d65cf367f
Inline layout is now done by LayoutBlock. Blocks with inline children will split them into line boxes during layout. A LayoutBlock can have zero or more LineBox objects. Each LineBox represents one visual line. A LineBox can have any number of LineBoxFragment children. A fragment is an offset+length into a specific LayoutNode. To paint a LayoutBlock with inline children, we walk its line boxes, and walk their fragments, painting each fragment at a time by calling LineBoxFragment::render(), which in turn calls the LayoutNode via LayoutText::render_fragment(). Hit testing works similarly. This is very incomplete and has many bugs, but should make it easier for us to move forward with this code.
35 lines
893 B
C++
35 lines
893 B
C++
#pragma once
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#include <LibHTML/DOM/Text.h>
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#include <LibHTML/Layout/LayoutInline.h>
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class Font;
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class LineBoxFragment;
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class LayoutText : public LayoutInline {
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public:
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LayoutText(const Text&, StyleProperties&&);
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virtual ~LayoutText() override;
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const Text& node() const { return static_cast<const Text&>(*LayoutNode::node()); }
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const String& text() const;
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virtual const char* class_name() const override { return "LayoutText"; }
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virtual bool is_text() const final { return true; }
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void render_fragment(RenderingContext&, const LineBoxFragment&) const;
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virtual void split_into_lines(LayoutBlock& container) override;
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private:
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template<typename Callback>
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void for_each_word(Callback) const;
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template<typename Callback>
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void for_each_source_line(Callback) const;
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void load_font();
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void compute_runs();
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RefPtr<Font> m_font;
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};
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