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ADDING VISUAL DESCRIPTION NODES TO A VISUAL DESCRIPTION TREE DURING LAYOUT
ADDING VISUAL DESCRIPTION NODES TO A VISUAL DESCRIPTION TREE DURING LAYOUT
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机译:在布局期间将视觉描述节点添加到视觉描述树中
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摘要
A layout engine generates a visual layout tree for a visual description tree of a document whose content is to be rendered in one or more display areas. A visual description tree describes the content of a document along with formatting and logical arrangement the content. Visual description nodes of a visual description tree represent the organization of the constituent elements a document hierarchically. A visual layout tree defines the layout of a document within one or more display areas. Visual layout nodes of a visual layout tree represent the layout of the content of a document hierarchically. The layout engine receives as input a visual description tree and generates the corresponding visual layout tree. A rendering engine then inputs the visual layout tree and generates a graphics buffer containing the pixels representing the layout of the document as defined by the visual layout tree.
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