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.
32 lines
748 B
C++
32 lines
748 B
C++
#pragma once
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#include <LibDraw/Rect.h>
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class LayoutNode;
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class RenderingContext;
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class LineBoxFragment {
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friend class LineBox;
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public:
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LineBoxFragment(const LayoutNode& layout_node, int start, int length, const Rect& rect)
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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_rect(rect)
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{
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}
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const LayoutNode& 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 Rect& rect() const { return m_rect; }
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Rect& rect() { return m_rect; }
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void render(RenderingContext&);
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private:
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const LayoutNode& m_layout_node;
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int m_start { 0 };
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int m_length { 0 };
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Rect m_rect;
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};
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